Processing technology for plastic decorated board

A processing technology and decorative board technology, applied in the field of plastic molding, to achieve stable product quality, reduce production costs, and strong stability

Active Publication Date: 2012-01-18
ANHUI APPROPRIATE WANFENG ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process solves the appearance defects such as cold material spots, silver streaks, air marks, etc. that are easy to appear at the nozzle (adhesive point) of the injection-molded plastic decorative board during molding. At the same time, the injection molding process is stable and the quality of the obtained products is stable. , improve production efficiency and reduce production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A processing technology for an automobile sunroof decorative panel, specifically comprising the following steps:

[0020] (1) Dry the raw material nylon 66, the drying temperature is 100-120°C, and the drying time is 6-4 hours;

[0021] (2) Set the temperature of the heating section of the injection molding machine: the first section is 265±5°C, the second section is 260±5°C, the third section is 255±5°C, the fourth section is 250±5°C, and the fifth section is 245±5°C ;

[0022] (3) Connect the mold to the heating system, and raise the oil temperature to 150°C;

[0023] (4) Add the dried nylon 66 into the injection molding machine;

[0024] (5) According to the following process requirements, adjust the injection molding machine to complete the injection molding process of the product:

[0025] a. The first section adopts 70Mpa medium pressure and 50m / s medium-low speed injection, the injection time is 0.25----0.5 seconds, and the injection glue volume reaches 78-80%...

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PUM

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Abstract

The invention discloses a processing technology for plastic decorated boards, which comprises the following steps of: adding dried raw materials into a heated injection machine; and obtaining a final qualified product by setting injection pressure, speed, injection time and injection glue amount of different sections of the injection machine and setting that the final pressurized pressure and pressurized speed reach the optimal injection technology. According to the technology, the phenomenon that a product water gap (gap inlet) has big possibility of generating appearance defects, such as cold charge speckles, silver marks, blow marks and the like when injection moulding plastic decoration boards are shaped can be eliminated. Meanwhile, the processing technology has good stability, the obtained product has stable quality, production efficiency is improved, and production cost is lowered.

Description

technical field [0001] The invention relates to plastic molding technology, in particular to a processing technology of a plastic decorative board. Background technique [0002] There are many kinds of decorative materials, including stainless steel decorative materials, plastic decorative materials, and composite board decorative panels, each of which has its own characteristics. Among them, the plastic decorative board is the most widely used. When the usual plastic decorative board is processed, some are formed by extrusion, and some are formed by injection molding. Usually, it is easy to appear at the nozzle (glue point) during injection molding. Cold material Spots, silver streaks, air marks, and other appearance defects. The injection molding process cannot be stabilized, the product quality is unstable, and the production efficiency is low and the cost is high. Contents of the invention [0003] The invention discloses a processing technology of a plastic decorat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/17B29C45/76B29L7/00
Inventor 吴康熙仇珍芳孙益民黄迪邵登张贵平
Owner ANHUI APPROPRIATE WANFENG ELECTRIC APPLIANCE
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