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Custom Injection Molding Process and advantages
Custom Injection Molding Process and advantages
Injection Molding is a process by which most plastic solid materials are produced. We have dedicated and experienced designer’s team having knowledge in tool design, custom injection molding and designing of core cavities for dies and molding.
Custom injection molding has always been a fast moving, disordered and demanding business. Now a day, despite the competition and tight margins it also has a potential for profit. You want to succeed, you see the possibilities, but the global pricing and high expenses make it very difficult.
What is the process of Injection molding?
The first step is plastic heated till it melts during the process of plastic injection molding. The mold can make by using any metal like steel or aluminum. The molten form is then allowed to cool down and set into a solid form. The plastic material thus formed is then retrieved out of the mold.
Next is the actual injection of the melted plastic. The plastic usually begins this process as pellets that are put into a large hopper. The pellets are then fed to a cylinder; here they are heated until they become molten plastic that is easily forced into the mold. The plastic stays in the mold, where it is being clamped under pressure until it cools.
The next couple of steps consist of the dwelling phase, which is basically making sure that all of the cavities of the mold are filled with the melted plastic. After the dwelling phase, the cooling process begins and continues until the plastic becomes solid inside the form. Finally, the mold is opened and the newly formed plastic part is ejected from its mold. The part is cleaned of any extra plastic from the mold.
The Factors involved in the Custom Injection Molding process are :
• The pressure of injection can be changed to change the hardness of the final product.
• The thickness of the mold also governs the quality of the article produced.
• The temperature for melting and cooling determine the quality of the plastic formed.
Advantages of Custom Injection Molding
There are so many advantages of using custom injection molding process. The major advantage of injection molding is that it is very reliable and cost-effective. Also, this process produces smooth and finished products that require no further finishing.
• Substantial cost savings due to availability of skilled 3D professionals at lower cost
• High Quality standards are maintained
• Quick Turn around Time
• Reduces capital costs of infrastructure
• Attractive Advanced technology
• Increased capacity for business expansion and diversification
• Improve employee satisfaction with higher value addition jobs
• Allows you to focus on core business
• Saving in human resources
To get more information about injection molding, you may visit us at http//www.mechanical3dmodelling.com. If you have query about Custom Injection molding, please email us at: info@mechanical3dmodelling.com
Author’s Name: Steve Jack
Link:http//www.mechanical3dmodelling.com
Email:info@mechanical3dmodelling.com
Prototype Injection Molding, Thermoplastic Injection Molding, Injection Molds
Prototype Injection Molding, Thermoplastic Injection Molding, Injection Molds
Hobart, Washington USA (Articles Base) July 15, 2008
The Prototype Injection Molding and Injection Molds Services is a new webpage that was just added to the new Rapid Prototyping Information Website that has just been released. This new Prototype Injection Molding Process webpage has all of the information you need to know on Injection Prototyping and Thermoplastic Injection Molding and the main information you need to know on Prototype Injection Molding. You can visit this Thermoplastic Injection Molding Services webpage at: http://www.prototypezone.com/plastic-injection-molding/
Here is an excerpt from the new Thermoplastic Injection Molding and Molds webpage:
“Rapid Prototyping is the process of automated manufacturing of physical components using solid freeform fabrication. They are used in a wide range of applications, everything from medical to fine art. Rapid Prototyping machine works by taking virtual models from software and then converting it into extremely thin, horizontal cross-sections and then goes onto create each of the cross-section in physical space in a cyclic manner until the model is completed. Rapid Prototyping is a WYSIWYG process in which the virtual model bears identical resemblance to the finished physical model. Additional fabrications allows the machine to lay down layers of sheet, liquid or powder material and build up a series of cross-sections These layers are finally automatically fused together to render the final product.
The main advantage of rapid prototyping is the ability to create any shape no matter how complex the geometry is. The commonly used data interface between the machine and the software is the STL format. It works by approximating the geometry of a part using triangular facets, smaller the facets higher will be the surface quality. The word “rapid” is used relative top conventional methods which take days to construct a model depending upon its complexity. Rapid prototyping can create the model within a few hours, though it is highly dependent of the type of machines and the size of the model. There have been several new technologies available for rapid prototyping including Fused Deposition Modeling, Selective laser sintering, 3D printing, and Electron Beam Melting.”
The new Thermoplastic Injection Molding page is free information to members and non-members and can be found at: http://www.prototypezone.com/injection-molding/. However, users of Prototype Zone who decide to be members can join for free and receive two free E-Books on Rapid Prototyping for a limited time offer. Prototype Zone will be adding new information all the time on Rapid Prototyping so check back often in the forum and blog for the latest information at: http://www.prototypezone.com/plastic-molds/
About Prototype Zone: Prototype Zone is the leading information source and community website for all things about Prototyping and Rapid Prototyping. Visit the website to join for free and receive two free ebooks on Rapid Prototyping for a limited time offer.
Author: Ryan Rounder, Director of PR
Email: Pressreleases@prototypezone.com
Website URL: http://www.prototypezone.com
Phone: 425-503-8401
City/State: Seattle, Washington
Injection Molding-How Plastic is Molded
Injection Molding-How Plastic is Molded
Plastic has, quite literally, become the cornerstone of our society. We make so many things from plastic that it is hard to imagine what our lives would be like if it was never invented. With so many of our everyday products being made of plastic, it is easy to understand why plastic injection molding is such a huge industry.
Approximately 30% of all plastic products are produced using an injection molding process. Of this 30%, a large amount of these products are produced by using custom injection molding technology. Six steps are involved in the injection molding process, after the prototype has been made and approved.
The first step to the injection molding process is the clamping of the mold. This clamping unit is one of three standard parts of the injection machine. They are the mold, the clamping unit and the injection unit. The clamp is what actually holds the mold while the melted plastic is being injected, the mold is held under pressure while the injected plastic is cooling.
Next is the actual injection of the melted plastic. The plastic usually begins this process as pellets that are put into a large hopper. The pellets are then fed to a cylinder; here they are heated until they become molten plastic that is easily forced into the mold. The plastic stays in the mold, where it is being clamped under pressure until it cools.
The next couple of steps consist of the dwelling phase, which is basically making sure that all of the cavities of the mold are filled with the melted plastic. After the dwelling phase, the cooling process begins and continues until the plastic becomes solid inside the form. Finally, the mold is opened and the newly formed plastic part is ejected from its mold. The part is cleaned of any extra plastic from the mold.
As with any process, there are advantages and disadvantages associated with plastic injection molding. The advantages outweigh the disadvantages for most companies; they include being able to keep up high levels of production, being able to replicate a high tolerance level in the products being produced, and lower costs for labor as the bulk of the work is done by machine. Plastic injection molding also has the added benefit of lower scrap costs because the mold is so precisely made.
However, the disadvantages can be a deal breaker for smaller companies that would like to utilize plastic injection molding as a way to produce parts. These disadvantages are, that they equipment needed is expensive, therefore, increasing operating costs.
Thankfully, for these smaller companies, there are businesses that specialize in custom plastic injection molding. They will make a mock up mold to the exact specifications, run it through the complete process and present the completed piece along with an estimate to complete the job to the customer.
Linda Moore writes on a variety of subjects including home ownership, travel, personal enrichment, plastic injection molding and replacement auto glass
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The Processible Plastic for Mold Making
The Processible Plastic for Mold Making
1. Introduction
The processible plastic — Hongke material is a fundamental casting material with high density, high precision and high stability and is suitable for cutting in high speed. It is widely used abroad in aviation, navigation stage properties, and electrical appliance where high quality mold and module are required.
Concurrently, only few countries in the world are able to produce this kind of processible plastic. With the development of high technology, the demand for high quality mold with a complicated curve shape, and difficult technique in manufacturing is increasing, As a result of their own limitation, the traditional casting material such as plaster, paraffin and wood etc, can not realize CNC numerical control rnanufactuimg and satisfy the need for development. Therefore the processible plastic replaces the primeval mold making material. Particularly in the 90’s, with rhe spread of numerical control manufacturing technique, the phenomenon is even more outstanding. In early 80’s, similar materials has been invented for smiuktmg cutting arid mold making on numerical control machine, but in our country this kmd of material relied totally on import until 1997. This fully demonstrated the importance of this kind of material for our mold making industry. For example mold making,casting mould,plastic injection mold etc.According to statistics, till April 1998, we have already 400 set of numerical control center (5 axises, 5 axises) of our mold making industry. It showed product simulating cutting requiring processible plastic. The demand is evident. As specified in 95 national plan, the annul output after 2000 of automobile will reach 2 million 7 hundred. Some 175 to 440 kinds of basic body type of automobile will leave for renovation and reform. The cycle for automobile type renewal is 6-10 years in our country. In the foreseen years the processible plastics will be used more extensively in life. Therefore the processible plastics – Hongke plastics is produced to meet the demand, its performance index has already reached the international standard for likewise products.
2. Develop of the product
At the moment, only few countries are able to manufacture processible plastics worldwide. Before 97, china has spent over tens of millions US dollars on this material. To produce and nationalized the material and to cut the cost and replace the import products become urgency. It’s a common knowledge that mold-making industry is the mother of modern industry. It is a significant symbol of industry development of the country. One cannot separate the development of mold material when talking about mold making. In the recent years, our mold making industry is transiting into modem industry development, CAD/CAM technique, numerical control manufacturing are widely used, consequently the requirement for the mold material is higher. Once a technician of a famous mold workshop discuss with us about producing a kind of basic casting material for high speed cutting on the numerical control machine, which should not be transfigured by the process,
of which the amount of abrasion of the knife should be low, and doesn’t absorb moisture
and is antisepsis, with a sufficient degree of finish on the surface^ and be preservable over
long-term. The factory is allocated with CAD/CAM technique together with advanced
numerical control manufacturing center. But the so-called ” processible material” has been
relied on import, which is expensive to buy and gives a long cycle for supplying. Hence we
made a survey over the mold making industry, and the result verified that the material has
a potential huge market. At that time, no such material was available nationwide, it is totally
relied on import. Therefore Honke material co. Ltd. began to engage itself on the research
and development of the material, during the formulation of the prescription, through
selecting various chemical structure of macromolecule to adjust, modify, and add ancillary
preparations and filling, can prepare double component mash like material and panel
material of different high and low density and performance index. When basal material is in
the basic system of macromolecule, add different modification monomer material of all
conditions, such as elasticizer, activator, and filling etc can greatly improve the
technical performance of the processibel material. Below is a brief description at initial period of matching the material and reaction procedure.
Of which Rl – diphenol U- ammonia ester conjunction radical
R- radical or hydrogen – position of activity core
Hongke processible plastics has been identified as the provincial new product in 12, 1999, the serial number is Liao Jing ke jian zi No. 991072. The unified conclusion of Slie experts is Hongke processible plastic is the initiate of the country, which reaches the: International standard and can compete with the congener products abroad. Aftei Hcrgke processible material came into market, by 2-year trial making rind sdiing, it gained the praise of the industry and is able to replace the products of same category abroad. For example mold making,casting mould,plastic injection mold etc
3.pracal applicalions
As for automobile bumper, application of Hongke 970850 processible plastic, which has a unique rough integrated design, is the mold structure not available abroad, and it does not require bonding. From the product design we understand that mold material which have the following characteristics 1. Spare material 2. Save cost 3. Save the manufacturing time, are considered highly by the companies of the industry.
4.features and function
Hongke material is attaining credits from the industry for 3 great characteristics, which are
easy to manufacture, high stability and low cost. The of the material, accommodates
the need for the development of the industry, shorten the mold making period, lower the cost and raise the precision. Copy the mold with the original, the material selected for copying the mold doesn’t shrink, the stability of the dimension is sound, the adopted material has no ill effect on the original metal and non metal mold, easy for clean, has no limit on the dimension of the copied model, can adjust the time for mold making at will, Hong Ke Material guarantees the uniformed solidity of the copied mold, it is a beneficiary for the outside dimension of the whole mold, and raise greatly the quality of the mold product.
4.1 High precision, light weighted, applicable for all kinds mold design.
4.2 High precise processible plastics, easy to manufacture manually or by machine, high stability of the dimension.
4.3 Affirm CAD/CAM program, mold design, compound mold, and simulate structure mold.
4.4 Main mold fabricate, basal mold fabricate, copy mold, cast mold and clamp.
4.5 Use under the condition of rotate speed of 1 OOOrpm/min of the knife in milling
center, Hongke product is not disfigured or destroyed etc.
4.6 Appropriate rigidity, use 0.66mm milling cutting, with a depth of 10mm, chip removal is normal, long life of the knife.
4.7 After Hongke processible plastics is manufactured, the surface of the material has a high degree of finish, it is suitable for post orders techniques such as and spray painting.
4.8 The measurement of the reproduced mold has a high stability, the made clamp performance has already reached the performance index of like products abroad.
Hongke Material density 078g/ cm3
Qiba Material density 0.77g/cm3
Thermal expansion
Name Temperature Relative elongation indicator Average linear
expansion coefficient
°C X L0 ~ * X 10 ~ e/ °C
Qiba Material 20 0 0
Hongke Material 20 0 0
Qiba Material 50 1.643 41.1
Hongke Material 50 1. 682 51.1
Qiba Material 60 1.794 52.1
Hongke Material 60 2. 201 55. 9
Bend Resistant Strength obb (test condition span 30mr, indenter diameter 20mm)
Name Color of the Sample Sena resistant strength bbb(mpa) Sample
measurement # 25
Hongke Materia! white 32
Hong Kong Material red 26
Pressure Resistant Strength
Name Color of the sample y
Hongke Material white pressure resistant strength is 26 tbb -,
Hong Kong Material red when reach pressure resistant strength 25, Djrt?
bbb destabilized.
David ZHENG is the CEO of http://www.cikmold.com. An ISO 9001 certified enterprise speciality in casting mould,mold making,plastic injection mold etc.
All You Need To Know About Plastic Moulding
All You Need To Know About Plastic Moulding
We cannot imagine a world without plastics. Plastics have found their importance in almost all application ranging from household items to complicated research equipments. Though there were controversies that the plastics pose a threat to the environment, the advancements in plastic manufacturing technologies have given birth to the eco-friendly plastics. Plastic manufacturers can now recycle and create new plastic products out of the used plastics. You will be well aware of the fact that injection moulding is widely used to manufacture the plastic products. Today’s plastic moulding is very much advanced and very different from what was originally invented. Just keep on reading the article to know all about the plastic moulding techniques.
A Little History
Plastic moulding is not a new concept developed in the 21st century. Moulding plastics into useful products exits since the origin of manmade plastic in the year 1851. The process of heating plastics and melting the molten material to obtain the shape of the mould is the basic concept behind plastic moulding. Though the concept of plastic moulding remains the same today, this technology has seen many advancements. Plastic moulding received huge importance during the period of Second World War due to the demand for the plastic medical equipments. Infact the plastic manufacturers where struggling to meet the demand for the plastic products during this period. This is period when the plastic moulding industry got a new shift towards development.
Current Plastic Moulding Techniques
Though the main concept of plastic moulding remains the same, the equipments used by the plastic manufacturers have changed a lot. With the integration of latest computer technologies the production rate of plastic moulding is greatly increased today. Unlike the olden days only when only fresh plastic materials were moulded to useful products, today with environmental awareness on the rise, plastic moulding concentrates on using recycled materials. Moreover, the advancements in plastic moulding technology has made it possible to manufacture products in any complicated shapes.
The Applications Of Modern Plastic Moulding
The applications of plastic injection moulding are virtually unlimited. Starting from simple plastic carry bags to complicated lifesaving devices – every plastic product manufactured today are through plastic injection moulding. Some of the common applications of plastic moulding are the manufacturing of products such as packaging bags, automobile parts, beverage cans and bottles, computer accessories etc.
The Future Of Plastic Moulding
You will be well aware of the fact that the use of plastics is banned in certain areas of all countries. People think that this may end the plastic manufacturing as environmental pollution is a major concern today. However, with the introduction of the recyclable plastics, the plastic industry has got a rebirth. Afterall, as already said, we cannot imagine a world without plastics.
R.E Davison is known in industy by two leading brands: RED Composites and Gloda Manufacturing and offer services in 2 major areas including plastic moulding. RED Composites for Thermoset plastic and plastic injection moulding for metal pressing and deep drawing for both the Australian and export market.
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How do Injection Moulds Work?
How do Injection Moulds Work?
An injection mould is the key to creating a successful one-piece finished plastic or metal component. Melted material is forced from the injection moulding machine into the mould (which is usually cool) where it sets. The result is a solid piece of the material which may be a component to, or the whole of, a finished product.
The mould is created by skilled technicians called Toolmakers who usually shape the mould according to the specifications of a 3D computer-generated model, which in turn has been created from the specifications of the product designer.
Injection moulds, or dies, have two halves that, when combined, create a whole that contains a hollow. It is into this hollow that the hot plastic or metal is injected and cooled, resulting in an exact physical copy of the 3D model. The two halves are commonly referred to as the mould core and mould cavity. The mould core corresponds to the inside surface area of the finished product, whereas the mould cavity corresponds to the outside surface area. The line which divides the two halves of the mould is called the parting line. This must be carefully chosen and designed around so as to allow the mould to separate properly. Serious damage can be caused if the mould contains an undercut or overcut, caused by a protruding portion of the mould which snags on the mould core or mould cavity respectively. There are countless ways to work around these design limitations.
An injection mould may seem a simple tool, but the complexity of the modern injection mould goes way beyond putting two hollows together to create a whole. Injection moulds are highly advanced pieces of technology. Once programmed, they are able to run autonomously day in and day out without any assistance. Moulds are set up with their own feeding system for the raw plastic and temperature control system to measure with precision exactly how the material is maintained — heated for injection and cooled for setting. They contain ejector systems to release the parts once they are complete. All of these systems reduce the need for personnel and can be left to run overnight, reducing costs dramatically.
As with any product, the quality of the mould and materials used dictates the quality and consistency of the parts that they will produce. Sundry plastic items like free coat hangers from department stores or DVD cases will be relatively cheaply produced as they will be made by the thousands, the quality of materials will not be considered a worthwhile investment and the variance in consistency will be negligible. For more consumer-attractive products, such as the dashboard for a limited edition car, the manufacturers will be certain that the plastic is of a high quality to ensure consistency and quality in their product.
Plastic injections moulds are based on a basic idea that has been refined to an art. Adaptable and so often used, the products created in injections moulds are all around us.
Dienamics is the only company in Brisbane to offer the complete service of Industrial Design, Toolmaking and Manufacturing. We specialise in the custom moulding of components using engineering thermoplastic resins. For more information, visit <a rel=”nofollow” onclick=”javascript:pageTracker._trackPageview(‘/outgoing/article_exit_link’);” href=”http://www.dienamics.com.au”>Injection Moulding</a>.
Inspection Techniques for Print Quality on Molded Plastic
Inspection Techniques for Print Quality on Molded Plastic
The applications presented utilized tools that are developed from image processing algorithms. In the inspection of correctly inserted print templates.it has been shown for instance that two feature detection algorithms can be applied; in this case canned in the software described as feature detection tools. If the print template is inverted in any way, whether upside down or left to right, either or both tools will return a “fail” based on the prescribed dark or bright feature size required across the tools. For print quality, two methods have been described. The first is to use a template match of a good print and compare it with other parts. This was mainly used to detect smudges, smears and poorly printed characters. Provided the degree of mismatch is adequately defined, the template match can be used fairly adequately. In this particular case study, the template match could not be tested extensively because of lack of adequate samples.The second method used algorithms for reading optical characters (OCR).The printed characters on a good plastic part, which are not standard OCR fonts, were read into an OCR tool.Through software, the tool was trained to recognize these as OCR fonts with varying degrees of acceptance. Like in the case of the template match, the OCR was not tested extensively due to lack of adequate different production samples.For example casting mould,mold making,plastic injection mold etc.
A variety of such software and hardware exist in the market today. The comparison between the different software/hardware platforms is not intended to be the subject of this paper; however a comprehensive listing can be obtained from the Automated Imaging Association.20 Plastic molding processes are widely used in the manufacturing of various engineering and consumer items. The growth of the plastics sector has seen a slight decline (-5% overall) in the U.S. since 2000 due to the increasing costs of fuel and gas, the weakening of the dollar against major currencies in the world, and more so, the movement of manufacturing to Asia (especially China). This deficit has been absorbed mainly by China, Canada and Japan. Despite this, there is still a substantial proportion of manufacturing companies in the U.S., especially in the molding industry. Thus there is still a great need for improved process and quality control. This paper presents a simple approach that utilizes commercially available hardware and software for machine vision applications to automate the inspection of molded plastics. Generally, the training required for using such systems is minimal since most software packages supplied by vision systems manufacturers are user-friendly. The inspection for quality also requires very simple tools like those that have been demonstrated such as feature count and template matching.
After the molding process is over, the part is removed from the mold cavity manually, and visually inspected for quality. Despite this, process variations could cause minor blemishes or smears on the print that are not immediately visible to the operator. Figure S shows an example of such a defect with a close-up on a print revealing a small smear on the letter “d.” Two methods can be used for this inspection.The first is to use a temporal operation such as the template match described in section 2.S.The training data is obtained from a captured image of what is perceived as a very good quality print. Subsequent images can then be captured from parts as they flow along a conveyor, and each image compared with the trained data. A problem such as a smear or a missing character may cause a mismatch in the number and position of dark pixels that are in the image. Figure 6 is an illustration of the application of this tool.
Another useful tool that would he used to inspect a print is an optical character reader (OCR). Although the prints are not true optical characters, using the software, normal non-OCR font characters can be trained to correspond to a particular print image.After an image of a good print is captured, using this software, the actual character string is typed into the OCR reader. The reader is then “trained” to interpret the image data as corresponding to character string from the keyboard entry. After several trials, an acceptance level for allowing the captured image characters as ones that match the corresponding keyboard characters is determined. If any of the characters from a subsequent part contains a large smear it would not match the trained data set. Additionally, if there is a missing character on a plastic part, the string will not match the trained one. An example of this is shown in Figure . There are two limitations with this tool however. The first is that there ought to he adequate spacing hetween the characters for it to work effectively. secondly, minor smears on the prints may not easily he detected. Such limitations have heen addressed hy the use of advanced processing algorithms such as those that utilize neural-fuzzy classifiers.
David ZHENG is the CEO of http://www.cikmold.com. An ISO 9001 certified enterprise speciality in casting mould,mold making,plastic injection mold etc.
Learn About the China Injection Molding Machines Market
Learn About the China Injection Molding Machines Market
China Injection Molding Machine Industry is mainly distributed in Guangdong province, Jiangsu province and Shandong province, totally accounting for 88% of total enterprises in Injection Molding Machine Industry. Totally speaking, East China takes absolute advantages, of which enterprise quantity in Zhejiang province accounts for 61%, having increased by 14 enterprises over that in 2005. In 2000, market capacity of the whole industry realized RMB 4.598 billion, and then it increased to RMB 14.578 billion in 2006. Following it, per capita sales revenues have been increasing year after year, from RMB 198,114 in 2000 to RMB 462,012 in 2006 up by three times. Totally speaking, the market still kept a stable growth and gross profit margin is in decline; while profits are rapidly climbing. Undoubtedly, all of these have showed that China Injection Molding Machine Industry has been in a growing period.
China is the largest producer of injection molding machines in the world, and in fact it ranked 1st in the world on both of yield and consumption. In the past few years, injection molding machine producers have got greatly improved on technology and management. However, compared with those in developed countries, injection molding machines in China still have a way to catch up on technology and varieties. In detail, there is still not little blank on such varieties as super-large or special precision injection molding machines; meanwhile, self-support rate of home-made injection molding machines for products processing is only about 45%; while for high-end products processing, most adopt imported injection molding machines. Totally speaking, research and manufacturing of injection molding machines cannot still satisfy demands brought by development of plastics industry in China.
As for industrial machinery, presently most of other machinery processing enterprises have got poor benefits; while only injection molding machines have rapidly developed. And with sustaining and promising market, many enterprises which originally produced machine tools, textile machinery and power equipments, also started to produce injection molding machines.Such as casting mould,mold making,plastic injection mold and so on. And meanwhile, newly-established injection molding machine producers are also rapidly growing; therefore, there mainly exist price war and discount war for ordinary injection molding machines.
Since many automobile manufacturers and electronics & electrical appliances manufacturers congregates on “Yangtze River Delta” region, now major consumption market of injection molding machines in China is spreading from the South to the North especially adjacent areas of Shanghai.
David ZHENG is the CEO of http://www.cikmold.com. An ISO 9001 certified enterprise speciality in casting mould,mold making,plastic injection mold etc.
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Chinese Markets for Injection Molded Plastics
Chinese Markets for Injection Molded Plastics
China’s demand for injection molded plastics has grown at a fast pace in the past decade. In the next five years, both production and demand will continue to grow. This new study examines China’s economic trends, investment environment, industry development, supply and demand, industry capacity, industry structure, marketing channels and major industry participants. Historical data (1995, 2000 and 2005) and long-term forecasts through 2010 and 2015 are presented. Major producers in China are profiled.
This report examines China’s macroeconomic trends, investment environment, injection molded plastic industry structure and capacity, production and demand, end-use market consumption trends, distribution channels and principal industry participants. Long-term forecasts for major injection molded plastics production such as casting mould,mold making,plastic injection mold and demand are included.
Key producers are profiled. Top Chinese injection molded plastics producers are listed in the producer directory section. Most primary and secondary research was done in China in order to access up-to-date government regulations, market information and industry data.
Data was collected from Chinese government publications, Chinese language newspapers and magazines, Chinese chemical industry associations (including Chinese plastic industry associations, local governments’ chemical industry bureaus) and plastic industry publications. Interviews were conducted with Chinese industry experts, university professors, and plastic container producers in China.
Historical data includes 1995, 2000 and 2005. Long-term development trends are projected to the years 2010 and 2015. Economic models and quantitative methods are applied in this report to project market demand and industry trends.
David ZHENG is the CEO of http://www.cikmold.com. An ISO 9001 certified enterprise speciality in casting mould,mold making,plastic injection mold etc.
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Injection Molding
Injection Molding
Do you know the name of the process by which most plastic solid materials are produced? It is called Injection molding. It is a simple process. However, the process may require practice for efficiency.
What is the process of Injection molding?
During the process of plastic injection molding, the plastic is heated till it melts and is introduced, under pressure (injected), into a mold. The mold may be made up of any metal such as steel or aluminum. The molten form is then allowed to cool down and set into a solid form. The plastic material thus formed is then retrieved out of the mold.
The actual process of plastic molding is just an expansion of this basic mechanism. The plastic is let into a barrel or chamber under gravity or force-fed. As it moves down, the increasing temperature melts the plastic. Then, the molten plastic is forcibly injected into the mold under the barrel with an appropriate shape. As the plastic cools, it solidifies. The plastic molded like this has a reverse shape than that of the mold. A variety of shapes both 2D and 3D, can be produced by the process. The process of plastic molding is cheap due to the simplicity involved and the quality of the plastic material is modifiable by changing the factors involved in the custom injection molding process:
– The pressure of injection can be changed to change the hardness of the final product.
– The thickness of the mold also governs the quality of the article produced.
– The temperature for melting and cooling determine the quality of the plastic formed.
ADVANTAGES
The major advantage of injection molding is that it is very cost effective and fast. Apart from this, unlike the cutting processes, this process rules out any undesired sharp edges. Also, this process produces smooth and finished products that require no further finishing.
For more knowledge on injection molding, you may visit us at www.emachineshop.com. We are the first online service to provide the opportunity of ordering virtually any machine part over Internet through our website. You will be provided with free design software, which lets you draw and order the machine part you want. The software provides instant pricing information and once your order is confirmed, the parts will be delivered where specified. Let the world’s first online machine shop provide you virtually with any type of custom part. Visit the site www.emachineshop.com and get detailed information about the site.
George is a well-known author who writes on topics related to Injection Molding, Rapid Prototype, for the site www.emachineshop.com
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