Method for designing rigidity and strength finite elements of plastic granulating mould
A design method and finite element technology are applied in the field of finite element design of the strength and stiffness of plastic granulation templates, which can solve the problems of strength and stiffness design of plastic granulation templates for extruders that have not been seen before, and reduce production costs and achieve good results. Effect
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[0014] Taking the granulation formwork of a large-scale extruder of a polyolefin plant as an example below, in conjunction with the accompanying drawings, the present invention will be further described:
[0015] The main parameters of the granulation template of a large extruder in a polyolefin plant:
[0016] Geometric size of granulation template: φ1080 (outer diameter) × 130 (thickness);
[0017] Diameter of granulation belt: φ870×φ630;
[0018] Discharge hole parameters: φ2.5×20 (about 2640 holes);
[0019] Template body material: 1Cr13;
[0020] Template granulation belt material: WC carbide, thickness 4.00-4.50mm;
[0021] Granulation belt hardness: 62~65HRC
[0022] Surface flatness of granulation belt ≤0.01mm;
[0023] The parallelism between the surface of the granulation belt and the positioning reference plane of the installation notch is ≤0.02mm;
[0024] The roughness of the discharge hole is Ra0.8;
[0025] The main technical parameters of the granulation...
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