Teflon-coated screws for countermeasures against the scorching of highly adhesive resins.

basic information

There are various methods for plastic molding, but injection molding and extrusion molding are considered representative, and both use screws. The functions required of the screw include the ability to transport, melt, and mix, and in extruders, specialized screws designed specifically for the type of plastic being used are employed. On the other hand, in injection molding machines, a general-purpose screw designed primarily for melting (plasticization) is used, as it is traditionally referred to as a "plasticizing device." If the screw, a major component, no longer performs as expected (as calculated)... Quick and appropriate action is necessary to address wear in order to prevent a decline in production efficiency. At Martec, we offer regeneration through Stellite overlay, Colmonoy overlay, and overlay welding with corrosion-resistant and wear-resistant materials, as well as various repair methods such as overlay welding, thermal spraying, special plating, and heat treatment, with the possibility of composite construction! With skilled craftsmanship, the results will be astonishing!

Price information

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Delivery Time

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Applications/Examples of results

We can also create new and repair various screws and cylinders. We also offer services such as the removal of broken screw heads. For example, we can repair two-axis cylinder liners with a minimum delivery time of 3 days, which is ideal for the rapid wear of resin compounding. Please feel free to contact Martec, which can handle all your "troubles."

Detailed information

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  In cases of strong corrosion due to acid... titanium-coated screws prevent oxidation and sticking! They maintain the surface condition of new products with a very hard coating of several micrometers.

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  Even the nozzle... Teflon-coated nozzle for injection molding machines Prevents sticking and corrosion Reduces the resistance of the resin flowing along the inner wall surface and suppresses the generation of char and corrosive gases.

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  Screw heads... Screw head Teflon plating Prevention of carbon buildup and gas corrosion Protects the base material from carbon buildup and gas generation due to overheating caused by convection around the screw head area.