Base product extrusion blow molding process

An extrusion blow molding and process technology, which is applied in the field of extrusion blow molding technology of base products, can solve the problems of complex production process, easy brittle fracture and high cost of die-casting molding process base, and achieve high cost performance, beautiful appearance and good shape changeable effect

Inactive Publication Date: 2017-01-25
SHENZHEN JIECHUANG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The base of the injection molding process has the disadvantage of low strength, and the base of the die-casting process has the disadvantages of complicated production process, high cost, and prone to brittle fracture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] An extrusion blow molding process for base products is formed by extrusion blow molding, and the process steps are:

[0023] (1) Baking process: Put the engineering plastics into the raw material dehydrator for drying and dehydration. The dehydration temperature is set at 60-100°C, and the drying time is 2-6H. Wherein, the engineering plastic in this step is modified engineering plastic material which is one of ABS, PC+ABS, PC and the like. The above-mentioned engineering plastics have the characteristics of high strength and high toughness.

[0024] (2) Feeding process: The dehydrated raw materials are sent to the hopper on the blow molding machine through a feeder or manually.

[0025] (3) Step-by-step setting of the barrel temperature process: start the blow molding machine, set the six-stage heating temperature of the barrel, and under the thrust of the screw's rotating extrusion and stirring, melt the plastic material from the Push the rear end of the material ba...

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PUM

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Abstract

The invention discloses a base product extrusion blow molding process, the process steps are: (1), material drying process; (2), material loading process; (3), segmental barrel temperature setting process; (4) ), stepwise setting of machine head temperature process; (5), wall thickness control process; (6), mold clamping process; (7), cooling process; (8), pick-up process. The invention has a reasonable design, can make up for the shortcomings of the two, has the advantages of high strength, high toughness, and high cost performance, and has the advantages of beautiful appearance, changeable shape, no need for secondary processing such as polishing, oil spraying, and electroplating, and the process is green and environmentally friendly. , which fills the gap in this field and is suitable for large-scale promotion.

Description

technical field [0001] The invention belongs to the field of blow molding technology, and in particular relates to a base product extrusion blow molding technology. Background technique [0002] At present, the bases of electronic products such as television sets and monitors mostly adopt injection molding technology and die-casting molding technology, both of which have insurmountable shortcomings. The base of the injection molding process has the disadvantage of low strength, and the base of the die-casting process has the disadvantages of complicated production process, high cost, and prone to brittle fracture. [0003] In view of the above technologies, a problem to be solved urgently by those skilled in the art is to develop a base product extrusion blow molding process that makes up for the shortcomings of the two. This technology can make up for the shortcomings of the two, and has high strength, high toughness, and high cost performance. It also has the advantages o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/04B29C49/78B29C49/66
CPCB29C49/04B29C49/66B29C49/78B29C49/783B29C49/786B29C2049/023B29C2049/6607
Inventor 郑孝存王昱江主军
Owner SHENZHEN JIECHUANG NEW MATERIAL CO LTD
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