Nylon 6 special for low-noise, self-lubricated wear-resisting injection molding gear and preparation process thereof
A self-lubricating, injection-molding technology, applied in belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problems of uncertainty in the performance of finished products, high material costs, and troubles for exporting companies. The effect of improving comprehensive competitiveness, convenient production and procurement, and low cost
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[0009] Embodiment 1 provides a low-noise, self-lubricating and wear-resistant nylon 6 for injection-molded gears, which is composed of the following components by weight: nylon 6: 52%; cross-linking wear-resistant agent: 22%; nylon 6 powder: 22% , antioxidant: 1.0%; heat stabilizer: 2.0%; other additives: 1.0%.
[0010] First dry nylon 6, nylon 6 powder and cross-linking wear-resistant agent at 85 degrees and 60 degrees respectively, then weigh them with antioxidants, heat stabilizers and other additives in proportion and mix them in a mixer at a low speed for 10 Minutes, the mixer adopts low-speed mixing, the gap between the mixing blade and the cylinder wall should be less than 0.5 cm, the mixing effect of raw and auxiliary materials should be visually observed that the various particles and powders are basically uniform, and there are no obvious agglomerates or agglomerations; the twin-screw extruder uses 40 long Diameter ratio, medium-strength shearing; the water-cooled st...
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