What are the factors affecting the unstable quality of the extruder barrel screw?
What are the factors affecting the unstable quality of the extruder barrel screw?Factors affecting the unstable quality of the extruder barrel screw:
1. The screw gap of the extruder barrel is too large
1. The screw gap of the extruder barrel is too large, the flow rate of the extruded melt is unstable, and the product surface is prone to side wrinkles;
2. If the gap is too large, the pressure of the extruded melt is unstable, and the geometrical size error of the product cross-section varies greatly;
3. The screw gap of the barrel of the extruder is too large, which makes the output of the extruded product unstable or decreases.
Second, the temperature of the extruder barrel screw is unstable
1. Unstable heating temperature control makes the plasticization quality of raw materials in the barrel uneven, resulting in rough product surface and frequent water marks;
2. The cross-sectional size of the product is unstable, and the geometric size error fluctuates greatly;
3. There are usually hard blocks on the surface of the product;
4. The product quality is unstable, the strength is poor, and it is brittle when used.
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