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Posts Tagged ‘plastic’

Question by Tabitha: Plastic mold Injection?
i am looking for a plastic mold kit i am trying to mold a tube for a model rocket and i wanted to use hard plastic is there any way i can get one that is really affordable? so please help me with this problem.

Best answer:

Answer by Jon
Try Micromark.com, they have a whole section on do-it-yourself plasic molding.

Injection molding is $$$$$, forget about it unless you are going to make 10,000 at least.

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Question by hopefull: Dose any one know the name of the plastic injections that helps prevent pregnancy that’s advertised on tv?
Has anyone used this method of pregnancy prevention? How is it done? Can you feel it during sex? Dose it mess with your period?

Best answer:

Answer by Baby Boy Coming 9/15/09!!!
… I guess you’re talking about an IUD.

What do you think? Answer below!

SIEMENS S7 200 AND OP17 DP PLC FOR INJECTION PLASTIC MACHINE 450 TONS FROM ZACH AMMAN JORDAN JORDAN FIRST PROGRAM
Video Rating: 3 / 5

Injection Molding Plastic

Plastics are synthetically produced non-metallic compounds. It can be molded into various forms and toughened for commercial use. Plastic molding products can be seen everywhere. Examples are jars, protecting caps, plastic tubes, grips, toys, bottles, cases, accessories, kitchen implements and a load more.

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Even the keyboard and the mouse that you use are made thru plastic molding. Even the plastic parts of the chair that you are sitting on are created this way.

The basic idea in plastic molding is inserting molten liquid plastic into a prepared formed mold, for instance the mold of a bottle. It is going to be then allowed to cool, then the mold will be removed to bare the plastic bottle.

Plastic molding can also custom-mold a wide variety of plastic products including : garden pots, cupboards, office trays and boxes, barriers, barricades and traffic signage and displays for product and selling promotions.

If you are planning to go into plastic molding business, you should first know the different processes. Choose from a plastic molding process that fits your position, your expertise, and your resources. Here are basic definitions of various techniques of plastic molding.

The Plastic Molding Processes :

1. Injection Molding

In Injection Molding, liquified plastic is forced into a mold hole. Once cooled, the mold can be removed. This plastic molding process is sometimes used in mass-production or prototyping of a product. Injection molding machines were made in the 1930’s. These can be employed to mass produce toys, kitchen implements, bottle caps, and cell phonephone stands to name a couple.

two. Blow Molding

Blow molding is like injection molding except that hot liquid plastic pours out of a barrel vertically in a molten tube. The mold closes on it and forces it outward to comply with the inside shape of the mold. When it is cooled, the hollow part is made. Examples of blow molding products are bottles, tubes and boxes.

Equipments required in setting-up a blow molding business are comparatively higher than injection molding.

3. Compression Molding

In this kind of plastic molding, a slug of hard plastic is pressed between 2 heated mold halves. Compression molding usually uses vertical presses rather than the horizontal presses used for injection and blow molding. The parts formed are then air-cooled. Costs of equipments used for compression molding are moderate.

four. Film Insert Molding

This plastic molding technique imbeds an image beneath the outside of a molded part. A material like film or fabric is inserted into a mold. Plastic is then injected.

5. Gas Assist Molding

Also called gas injection molding is used to create plastic parts with hollow interiors. Partial shot of plastic is then followed by hi-pressure gas to fill the mold cavity with plastic.

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Question by mystictigress31200@sbcglobal.net: can some one please direct me to a list of injection molding plastic manufacturers in Texas? I need a list?
I need a list of all plastic companies in Texas

Best answer:

Answer by love_2b_curious
Try “Hoover’s Online” directory.

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Dr. Etai Funk Discusses Deep Filler Injection for Facial Contouring in Facial Plastic Surgery with Radiesse, Juvederm, and Restylane
Video Rating: 0 / 5

Plastic Extrusion Molding

Plastics extrusion is a high volume manufacturing process in which raw plastic material is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weather stripping, window frames, plastic sheeting, adhesive tape and wire insulation. Thermoplastic materials are fed from a hopper into the heated barrel of an extruder. A rotating helical screw inside the barrel pushes the plastic through the barrel toward the die located at the end of the machine. Molten plastic is then forced through the die opening.  Thus, the process of forming a continuous piece of plastic by forcing it through a shaping orifice with or without the presence of heat is called plastic extrusion molding.

Extrusion molded plastics can be given many shapes. Due to the flexibility it offers, extrusion molded plastic can be used to produce various items. When looking to design a plastic extrusion, you can consider the following design tips.
4.    Plate with the shape of the part cut through the die with no transition guiding the material. This is a low cost design for low volume production.
5.    At the back of the die the edges and corners have radii to help the material transition into the die.
6.    The die aggressively channels the material evenly throughout the die. This design is most expensive and ideal for high volume jobs.

Consistent wall thickness is the most important aspect in the design of your part. It allows for an even flow of material through the die that produces more controlled parts with a lower tooling cost. It is advisable to avoid designing profiles with hollow sections as they add significantly to the cost of both the part and the tooling. While designing, it is always better to keep the thickness of the material uniform, avoid sharp internal corners and use open sections instead of closed ones. Advantages of plastic extrusion molding include low cost and the ability to produce intricate profiles.

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Question by Brijesh: Plastic Injection Molding Operation, Need 2 purge the barrel from Blue 2 White. (polyolefin base)?
Traces of blue color is not cleaned completely.

Best answer:

Answer by markmold
There are several commercially available purging compounds that work quite well. I’m assuming you want the quick fix though. When I don’t have any of the commercial stuff available I usually reach for some acrylic regrind that I have lots of on hand and was given by another molder. If you have any blowing agent this also works well.
Here’s an old molders trick try sprinkling a little Baking Soda into the mix and crank up the temps a bit, a few drops of water won’t hurt either. It might foam up a bit but it’ll scrub the residuals out.

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Dr. Campbell demonstrates his customized approach to Botox and proper Botox injection technique.

www.matrixtooling.com Yushin robot on injection molding press. The robot separates the runner, left, and right hand parts.
Video Rating: 5 / 5

Plastic Machinery Manufacturing Industry in China's export situation analysis

China’s plastics machinery manufacturing industry 50 years from the 20th century produced the first product since, after almost half a century, especially the rapid development since the reform and opening up, and now have built a full range, the main technical and economic indices, or reached the international advanced level, supporting internationalized production gradually specialized, complete with large-scale industrial system, the product basically meet the domestic demand, rapid increase in export capacity. I. Current Situation of China plastic machinery manufacturing industry currently engaged in manufacturing plastics machinery and related enterprises, about 600 units, of which plastic molding equipment can provide about 250. China’s plastics machinery industry has a considerable scale, at present, China’s leading plastic machinery production capacity more than 10 million sets, which, out of more than 8,000 sets of equipment, 30,000 sets of injection molding machines, blow molding equipment, more than 3,000 sets of plastic machinery annual turnover of 8.0 billion ~ 10 billion yuan. Plastic products from the market analysis, combined with our existing plastic machinery production capacity into full play, from 2001 to 2010, China’s domestic market capacity of plastic machinery products the average annual growth of about 6%. 2000, 2005 were 80 billion yuan, 11 billion yuan, is expected to reach 14.5 billion by 2010. With the improvement in the quality of our products and variety increase, plastic machinery products in the domestic market share will increase as expected were 70%, 75% and 80%; plastic machinery products were 5.6 billion total industrial output value , 8.25 billion yuan and 11.6 billion yuan. With the increase of China’s exports in 2010, China’s industrial output value of plastic machinery products reached 140 billion yuan, 2.33 times in 2000, the annual average growth rate of about 9% in 2001 and 2005 annual growth rate of 10% 2006 to 2010 annual growth rate of 8%. Plastic machinery products from the quantitative analysis, 2000, 2005, were 5.5 million, 7.5 million units in 2010 to 10 million units, of which about 35% of the injection molding machine, extruder, 25%, about Blow Molding Machine 5%, 35% of other presses. Second, China’s exports of plastic machinery manufacturing industry of plastic equipment for general use in addition to meet the domestic demand, equipment exports also increased year by year. 3 years, China’s plastics machinery exports in the period of fastest growth in history. Long, exports have been about 50 million U.S. dollars in 1998, more than 100 million U.S. dollars in 2001 to 238 million U.S. dollars, up 31.09 percent over 2000. Experts believe that the future of China’s exports of plastic machinery injection molding machine will be based. From the quantitative analysis of the export is expected to share all kinds of aircraft were: 60.4% of injection molding machines, extruders 6.8%, 11.7% blow molding machine, the other presses 21.1%. From the amount of plastic machinery products export point of view, 74.1% of injection molding machines, extruders, 8.1%, blow molding machine, 8%, other plastic machinery products accounted for 9.8%. 3, plastic and rubber mold export Moreover, the rise of China Mould exports momentum. In 2002, China exported 19,500 tons mold, to 252 million U.S. dollars. Among them, the plastic or rubber mold to 467,800 units, about 172 million U.S. dollars, accounting for 68.3% of total exports of the mold. Major sources of exports of plastic molds to Guangdong, Zhejiang, Shanghai and Fujian Province, accounting for 57% of exports of the country mold, 13.9%, 11% and 5.2%. The main export markets are Hong Kong, China, Japan, China Taiwan Province, United States and Singapore, followed by Vietnam, Thailand, Malaysia, South Korea, India, Indonesia and Mexico. Although the origin of China’s plastic mold all over the country but mainly concentrated in the southeast coastal provinces and cities, especially in the Pearl River Delta and Yangtze River Delta area where the concentration. By provinces, the Guangdong Province and Zhejiang Province, the most developed. The two provinces produce plastic mold mold production accounts for about 2 / 3. , Dongguan, Shenzhen, Shunde, Guangdong Province, the most advanced plastic mold parts; and Ningbo, Taizhou, Zhejiang Province, is the most advanced producer. Plastic injection mold plastic mold of the key products, primarily serves the automotive, motorcycle and electrical industries.

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