Wednesday, August 15, 2007

Secrets of Thermoforming

Author: James Monahan

Are you aware that some of the things we use in our everyday lives are plastics? When we talk about convenience, durability, efficiency, stability, usefulness and practicality now days, we use plastics.

One example of it Zip-lock plastic bags for storing left over foods and use for packing foods when going outdoors. Another one is, Coleman or Rubbermaid coolers use to keep preserve foods while camping outside or going out of town and water jugs to keep our beverages cool and a handy gadget outdoors.

And a lot more of plastics used for everyone's convenience. But these are not just ordinary plastics! We make sure its durable; reliable, tough, helpful, easy to use and it costs less than other products out in the market and Thermoforming has been a part of it. Want to know the BIG SECRET behind it?

Thermoforming is one of the procedures being done to manufacture plastic. A plastic sheet or film is used that can be easily soften up when heated and becomes hard again when it cools down.

The kind of plastic used in Thermoforming can undergo through melting and freezing without changing its chemical state and it can be re-used again. The plastic sheet or film is heated between specialized heaters in order to form the product with its usual temperature range.

Then it is placed in a temperature regulated metal table or molder until it is cooled down. The plastic formed from the molder will be taken out of the sheet. Used or excess plastic sheets are being recycled in order to form new plastic products out of it.

This special procedure is being processed to form plastic used for computers, machines, and other special equipments for medical, electronics, and industrial products.

It is a technological breakthrough for its: 1. Reliability 2. Convenience 3. Easier to produce 4. Ability to form small and large objects for that specific product 5. Lower costs of production 6. Great and unique design 7. Firmly and nicely furnished 8. Shorter time for production 9. Can work on any type of weather conditions, high and low temperatures.

In the history, it is stated that Thermoforming is one of the oldest plastic manufacturing procedure. In the year 1890's, Baby rattles and Teething rings are formed out of plastics using Thermoforming procedure, which the industries had a hard time developing its new products.

The year 1930 came when some developments are made in its plastic materials; until it grow and went successful in the late 1930's in Europe.

Thermoforming has two general process categories called the thin gauge and the so called heavy or thick gauge. Thin gauge is used for thin sheets of plastics and can be directly processed with regulated temperature.

Unlike the heavy or thick gauge, the plastic used there is thicker than the thin plastic sheets and it still need to cut into pieces before being processed.

Instead of using the regulated temperature for thin plastics sheets in order to form a product, the temperature is higher than the regulated temperature in heavy or thick gauge.

Heavy or thick gauge was formed during the World War II on aircraft windscreens and machine gun turret windows in aircrafts.

Now a days, Heavy or thick gauge parts are used in permanent structures as additional parts in cars, trucks, refrigerating units, bathroom accessories such as showers, plastic faucets, plastic doors and toilet seats, electronic and electrical equipment.

It is a big benefit for companies who use these kind of procedure for their plastic products it's lower costs, durability, usefulness, and productivity. It also weighs less than other ordinary and special types of plastics. Of course, it's also helpful for the consumers and users of this kind of plastic.

A lot of Industries, big and small companies indulge and gain on to this kind of procedure. Their clients prefer more of this kind of procedure for its unique design, stability, efficiency and value. Their aim:

Lower material and production costs, plus Mass production of products, equals BIG MONEY, in order to be successful in this kind of business.

About the author: James Monahan is the owner and Senior Editor of and writes expert articles about thermoforming .


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