We all know that continuous growing of glass fiber quantity in different kinds of engineering plastics, adding of different filling materials and quality changing agents as well as the manufacturing of plastics such as bakelite and iron powder is easily to wear down the material pipe and screw. Therefore, at present, different enterprises want to reduce cost and turn waste to wealth. Our company is successful in researching a set of new technology of restoring screw and material pipe after several years' research and development and the technology is becoming mature after several years' exploring and practicing. No matter material pipe, screw concentricity, gap or the inner hole of material pipe, the smooth finish degree of external diameter of screw is almost the same to the new material pipe and screw. Processing technology: Reaming and smooth grinding shall be conducted to inner hole of material pipe, and then nitriding treatment will be conducted. Coarse grinding shall be conducted to external diameter of screw and tungsten carbide alloy will be painted to the surface, and then smooth grinding shall be conducted to the external diameter to match with the inner hole of material pipe, and hard chromium plating will be conducted to the screw.

We outstand at a higher level than others in the same market through attributes and focus much of our attention on how corporates are in practical screw application such as the potential issues study or requirements investigation of the screw barrel. Our competitive advantage is to provide a simple, effective, professional solution to injection molding machine screw troubles. Hua Xi has been engaged in screw barrel manufacturing and designing for more than 20 years.