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Posts Tagged ‘plastic’

This excerpt gives a definition of plastics (or polymers) and common attributes shared by all plastic materials. It discusses the basic molecular structure of a polymer. This program explains how and why plastics are different and cites several different types of polymers and processing considerations. Understanding Plastics emphasizes material handling, explains regrind, and covers the effects that moisture can have on molded part properties during processing. A. Routsis Associates – Complete Training Solutions for the Plastics Industry. Visit www.traininteractive.com for state-of-art plastics training, including interactive CD-ROM and online training.

Question by pppp: Plastic Mold Steel Material 2083 ESR polishability?
I want to use 2083 ESR steel material for Plastic Injection Molds for Optical Mirror Finish components . Is it advisable ?. If not why ? If yes also Why ?

Best answer:

Answer by Lee G
It’s a good choice. It’s a martensitic stainless steel, so it’ll be hard, which makes for good polishing (the softer metals tend to tear and smear). Plus it also has limited carbides, which is what makes 440C so bad for polishing. The electroslag remelting makes for a clean steel, as well- very few inclusions.

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Question by kelli p: what plastic can be injection molded and has the same density as pure methyl alcohol?
chemistry or engineering category.

Best answer:

Answer by acidcrap
Are you talking about vapor density or do you mean the specific gravity?

Another determining factor would the application for this plastic. Off the top of my head I can’t quote you any special types of plastics. All of my reference books are at work. But plastic isn’t all the same. Do you need a crystalline or amorphous plastic for your application? Will it be coming in contact with chemicals, heat, etc.

You might want to check out this web site.

http://www.immnet.com/

This is one of the biggest injection molding magazines for the business. They do have a forum there where they might be able to help you with your question.

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Question by funk0311: What company makes plastic bags for grocery stores?
I have searched high and low to find out what company makes plastic bags for say like walmart. i know they are partally recycled, but what is the company that sends the plastic through an injection mold and ships it out.

Best answer:

Answer by J. P.
http://www.iqsdirectory.com/plastic-bags/

http://www.plasticbagworld.com/

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แบบจำลอง ฝายึดสำหรับเปิด-ปิดประตูรถยนต์ (Door Handle Bezel) เพื่อที่จะศึกษา ทิศทางการไหลของน้ำพลาสติกที่ไหลภายในแม่พิมพ์ (Multi of Cavity) พร้อมปรากฎการณ์การไหลชนของน้ำพลาสติก (Weldline) และตำแหน่งของการไล่อากาศออกจากแม่พิมพ์ (Air trap) เพื่อหลบหลีกปัญหาที่อาจจะขึ้นได้จากการฉีดพลาสติก อยากเช่น ทางด้านความแข็งแรง ,การเกิดฟองอากาศ ภายในชิ้นงาน เป็นต้น

Question by Dave: Who would make a large plastic bottle?
I sell a paint product I put in small 2 oz bottles. For a trade show I want to have a jumbo replica of my product for a display. What kind of company would I approach do this sort of custom work? I’m not even sure what to look for in the Yellow Pages – plastic company? plastic molding? Injection molding?

Best answer:

Answer by Beth M
Here is a list of some different injection molding companies, but I wonder if that would be too expensive, since a lot of the cost comes from the set-up (and you only want one). You should probably just call one or two to ask. You might also consider talking to a novelty manufacturer– the ones that do pens and stuff– to see if they would have any ideas.

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Question by hacker: 92 festiva oil coming up on motor and oil in the plastic going from the breather to the fuel injection port?
I had a new timing belt put on prior to this but has never had any power since. I had the engine totally overhauled about a year ago and it ran fine but since I replaced the timingbelt it hasn’t ran right sence. there is no power at all. I replaced the PCV valve but still get oil back in the breather area from breather to fuel injector.The engine shuts off real fast like its to tight and there is oil that drips on the floor, uses about a half quart every 30 or 40 miles.There is blue smoke that comes out periodically but not all the time.There is a small water leak on the floor, could this be from the water pump leaking on the timing belt ,and cause the timing belt to jump time.Sometime it is hard to start when you turn it off so I let run to get back home. Have put new plugs and coil wire in it. What could be my problem. THANKS

Best answer:

Answer by Jcontrols
Do a compression check.Sounds like excessive blow-by in one of the cylinders,,;-(=

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Join Andy Routsis, founder and president of A. Routsis Associates, as he presents many aspects the typical injection molder overlooks. When optimizing the injection molding process, many injection molders stop their efforts after adjusting a few parameters such as cooling time. Andy will focus on often overlooked concepts such as the proper use of injection profiling, appropriate cushion sizing, and material preparation. This seminar can benefit any engineer, processor, supervisor, technician, or die setter as well as anyone involved in managing a molding operation.
Video Rating: 5 / 5

www.thaimangkornplastic.com plastic injection machine(เครื่องฉีดพลาสติก)THAI MANGKORN PLASTIC INDUSTRY CO.,LTD is one of the Leading – edge Technology and Innovation Company for Plastic Machinery Industry in Thailand . Our New Factory is located Approximately near Samutprakarn Industry Area. With Over 20 Years of experience in Domestic and International Marketing. With our well trained workforces and Supreme Organizing Platform , we dedicated on high quality and providing speed reaction process in after sale and service . We always persistently strives The Trust and Satisfaction from our valuable customers . Our Core business and Major Product are Recycle Granules Machine, Blowing Machine , Injection Machine, Regrind powder Machine, Crusher Machine, Washing Plant Setup and other Customer Made Products Facilities.
Video Rating: 0 / 5

Dr Ioannis Lyras, the well known plastic surgeon from Greece was invited at the Anti-aging Medicine World Congress in Monte Carlo, Monaco, to present the newest and most innovative techniques among the best procedures for somebody to look and feel great with his external appearance. The ingection pen, the pen that erases wrinkles, with no pain. The honored country in this prestigious World Conference was Brazil and the Honorary President was one of the pioneers of modern plastic surgery, Prof. Ivo PItanguym, from rio de janeiro, south America. Ivo Pitanguy presented his philosophy about beauty and the standards of modern plastic surgery. Other topics were stem cells, threads, fillers, relaxants, cosmetology, weight loss, rejuvenation, beautification, youth factors, the psychology of beauty improvement, radio frequencies, lasers, spider veins, and peel. Embodiment V. Rotas
Video Rating: 0 / 5

Dr. Perlman www.perlmanmd.com injects botox to the crow’s feet forehead and between the brows of Daphne Brogon, host of Fashion Team on the TV Guide Network at Lauren’s Salon Spa in W Hollywood. Dr
Video Rating: 4 / 5