With the view to upgrade and achieve better stability in quality products, Poly screw had undertaken great efforts in the field of research and development in order to reach this goal. Since, we had gain ISO 9001 certification in 2000, we have continued to acquire modern equipment to improve the manufacturing process of our bimetallic barrel and screw. In order to resist the halogen free fire retarding agent for plastic, Poly screw raises the tungsten carbide percentage to strengthen the ability of anti-corrosive and anti-abrasive. The best screw new one is called T – 60.
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With a view to meet the ever increasing market demands, now plastic processors have resorted to the use of plastic raw materials which included all kinds of sophisticated ingredient such as glass fiber additive, carbon fiber, mineral stone powder additive, heatresisting chemical additive, etc. Thereby, it causes the serious abrasion and to the barrel and screw as well as reducing their life span. To meet this challenge, Poly screw has several kinds of screw which has shown a remarkable anti-abrasion and anti-corrosion resistance in its practical application. We do not just do PTA treatment on screw flights, also developed the technique of hardness coating of the entire screw surface, so as to bring more benefits to the processors.
