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Injection molding process

An injection molding process and particle technology, applied in the direction of coating, etc., can solve the problems of difficult to meet the production requirements, complicated process steps, and low quality of finished products, and achieve the effects of shortening the molding cycle, reducing costs, and saving raw materials

Inactive Publication Date: 2014-03-05
章仕权
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  • Claims
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Problems solved by technology

[0003] However, the existing injection molding process still has certain defects in the implementation process, such as complex process steps, long cycle and high cost. At the same time, the quality of the finished product of the existing process is not high, which is difficult to meet people's production requirements

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Embodiment Construction

[0033] refer to figure 1 , a kind of injection molding technique of the present invention, comprises the following steps successively:

[0034] a) Crushing the injection molding waste;

[0035] b) Screen the crushed waste particles through a sieve with a sieve hole diameter of 0.41-0.56 cm, and screen out the waste particles that meet the requirements;

[0036] c) Proportion the waste granules that meet the requirements in step b) and the ABS raw material granules by weight to form a mixed raw material. The ratio of waste granules: ABS raw material granules is 23:77, and the mixed raw materials enter the oven through the automatic feeding mechanism;

[0037] d) Drying treatment of raw materials: use an oven to dry the mixed raw materials at a temperature of 123° C. for 0.5 hours;

[0038] e) Heat preservation treatment of raw materials: put the dried mixed raw materials into an environment of 96°C for heat preservation treatment for 1.5 hours;

[0039] f) Pretreatment of in...

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Abstract

The invention discloses an injection molding process, which comprises the following steps of (a) waste crushing; (b) waste screening; (c) waste and raw material mixing; (d) drying treatment; (e) heat-preservation treatment; (f) injection molding system pretreatment; (g) injection molding mould pretreatment; (h) raw material plasticization; (i) raw material injection; (j) pressure preservation; (k) cooling molding; and (l) de-molding. The process comprises simple steps, and is convenient to implement, raw materials are saved, the cost is lowered, a molding cycle is shortened, and the machine efficiency and the automation degree are improved.

Description

【Technical field】 [0001] The invention relates to the field of injection molding, in particular to an injection molding process. 【Background technique】 [0002] Injection molding is a method of producing shapes for industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding molding method and die casting method. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment for making thermoplastic or thermosetting materials into various shapes of plastic products using plastic molding molds. Injection molding is realized through injection molding machines and molds. [0003] However, the existing injection molding process still has certain defects in the implementation process, such as complex process steps, long cycle time and high cost. At the same time, the quality of the finished product of the existing process is ...

Claims

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Application Information

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IPC IPC(8): B29C45/00
CPCB29C45/76B29C2045/0096B29C2945/76531B29C2945/76561B29C2945/76498
Inventor 章仕权
Owner 章仕权
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