Method for designing rigidity and strength finite elements of plastic granulating mould

A finite element and granulation technology, applied in calculations, special data processing applications, instruments, etc., can solve problems such as the strength and stiffness design of plastic granulation templates for extruders that have not been seen, and achieve low production costs and good results

Active Publication Date: 2012-10-17
PETROCHINA CO LTD +1
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Problems solved by technology

[0003] There are many literatures in the published literature at home and abroad that report the application of software for strength and stiffness design. Most of them are used in other industrial processes or equipment, rather than plastic granulation templates for extruders. Publicly published at home and abroad In the existing literature, there is no literature that uses ANSYS software to design the strength and stiffness of the plastic granulation template of the extruder.

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  • Method for designing rigidity and strength finite elements of plastic granulating mould
  • Method for designing rigidity and strength finite elements of plastic granulating mould

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Embodiment Construction

[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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Abstract

The invention relates to a method for designing rigidity and strength finite elements of a plastic granulating mould. The method comprises the following steps of: establishing a three-dimensional model of the mould by using SolidWorks software; generating finite element models by using ANSYS workbench software; setting material parameters, applied boundary conditions and force load of the mould; calculating the finite elements by using the ANSYS workbench software to acquire a stress distribution cloud chart of the mould; calculating the finite elements by using the ANSYS workbench software to acquire a total deformation distribution cloud chart of the mould; analyzing the reasonability of the mould structure according to the stress distribution cloud chart of the mould, determining a maximum strain value, and checking whether the maximum strain value meets the strength requirement of the design or not according to the fourth strength theory; and analyzing the reasonability of the mould structure according to the deformation distribution cloud chart of the mould, determining a maximum deformation position and a maximum deformation value, and checking whether the maximum deformation position and the maximum deformation value meet the rigidity requirement of the design. The method promotes domestication of the plastic granulating mould.

Description

technical field [0001] The invention relates to a strength and rigidity finite element design method of a plastic granulation formwork. It specifically involves using SolidWorks software to establish a three-dimensional solid model of plastic granulation templates, using ANSYS software to generate a finite element model from the established three-dimensional solid model of plastic granulation templates, and using ANSYS software to complete the finite element stiffness and strength analysis and design of plastic granulation templates. Background technique [0002] At present, the design and manufacture of domestic plastic granulation formwork has been in the status of surveying and imitation of imported granulation formwork. Since the design of granulation formwork has no theoretical support, its reliability cannot be guaranteed. This project comprehensively applies 3D design theory and finite element technology to provide a theoretical basis for the design of localized granu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 王文友刘斌张瑞琳刘波何永健范丽华吴克勤周建军王红梅王世宏白冰丁生华王智斌樊亚军周志勇
Owner PETROCHINA CO LTD
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