November 03 2017 0Comment
PTFE Tube Machine

An extrusion machine for PTFE

Sunkoo’s enormous strength comes from a wonderful combination of its highly efficient and professional management and a dedicated workforce of qualified and experienced engineers and technicians and marketing personnel, which in turn, leads to world-class manufacturing, testing and R & D , besides meeting requirements of clients’ specifications globally.

Our comprehensive array includes PTFE & UHMWPE Rods Ram Extrusion Machines, PTFE & UHMWPE Ram Extrusion Machines, PTFE Molding Machines, PTFE Gasket Machines & Sintering Furnace/Ovens.

What is PTFE?

Polytetrafluoroethylene (PTFE) is a synthetic material accidentally invented in the late 1930s while a chemist was endeavoring to develop a new type of perfluorethylene-based refrigerant. Rather than achieving a chlorofluorocarbon, the scientist was surprised to find that the perfluorethylene used in the process reacted with the iron content of its container and polymerized under pressure. Less than a decade later, this new material was being distributed on a commercial scale and was eventually patented under the name Teflon®. It would be another 20 years before this material would hit the frying pan and become known as the first non-stick coating for cookware, however. In fact, this material was used for a variety of other purposes at first.

PTFE also possesses very low frictional properties, which is expressed as frictional coefficient. This measurement is relative and differs according to the materials brought into contact to generate or simulate friction. In terms of plastics, friction is usually observed against polished steel. To put the low friction coefficient of PTFE into proper perspective, it is the only known synthetic surface material to which the toe pads of a gecko fail to stick. This quality makes it suitable for manufacturing parts that need to resist friction, such as gears and ball bearings.

This material was eventually introduced to American households by Marion Trozzolo, founder of Laboratory Plasticware Fabricators. While Trozzolo had been producing Teflon®-coated scientific tools for a number of years, he became inspired by a French engineer who found it such an effective non-stick coating for his fishing gear that he later treated his wife’s pots and pans with it. While this experiment led to the production of cookware known as Tefal (T-Fal®) in France in the mid-1950s, Trozzolo became the first U.S. producer of Teflon®-coated cookware. In fact, “The Happy Pan,” launched in 1961, earned a place of historical significance in the Smithsonian Institute and Trozzolo a name of distinction in the Plastics Hall of Fame.

Extrusion is a shape forming manufacturing process that involves forcing material into a die to make other shapes with that matetial. It’s like play dough. Imagine having play dough and pushing it through one of those tools with all the holes. You end up with play dough spaghetti. This is an example of extrusion. You can achieve a lot of different stock sizes and lengths by extruding.

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