Plastic rubber sheet forming and shaping processing method

A processing method and technology for plastic sheets, applied in the field of plastic sheets, can solve problems such as unbearable use, unfavorable manufacturers' competitiveness, and uneven arrangement of plastic molecules.

Inactive Publication Date: 2005-11-02
NIEN MADE ENTERPRISE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] After the plastic sheet is extruded, cooled and formed, due to the rapid cooling and solidification of the plastic during the heating and extrusion process, the arrangement of the plastic molecules is different, resulting in residual stress. The existence of residual stress leads to poor rigidity of the plastic sheet, which is prone to environmental temperature changes Deformation, especially the deformation of thin plastic sheets is more obvious. Thin plastic sheets are widely used, such as curtain blades, floor trims or decorative panels. Due

Method used

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  • Plastic rubber sheet forming and shaping processing method
  • Plastic rubber sheet forming and shaping processing method
  • Plastic rubber sheet forming and shaping processing method

Examples

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Embodiment Construction

[0025] see figure 2 Shown is a kind of plastic sheet 10 forming and shaping processing method provided by a preferred embodiment of the present invention, and its manufacturing steps are as follows:

[0026] (1) Preparation of plastic raw materials 20:

[0027] After fully mixing and stirring the plastic raw materials required for extrusion 21, inject them into a molding device (it can be an extruder or an injection machine);

[0028] (2) Molding operation 30:

[0029] Heat the plastic material in the molding equipment to soften it, pressurize and push it into a profile mold (if the molding equipment is an extruder, the profile mold is an extrusion mold, if the molding equipment is an injection mold machine, the profile mold is an injection mold);

[0030] (3) Cooling 40:

[0031] After the softened plastic material is molded by the molding equipment, it enters a cooling mold through the profile mold, and is solidified and formed by contacting the cooling mold with outsid...

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Abstract

The plastic plate forming and setting process includes extrusion plastic plate, cooling to form, and post heating and setting treatment. In the post heating and setting treatment, the plastic plate is heated to certain temperature and maintained for one period, and this makes the plastic molecule arrangement formed in the extrusion altered, eliminates the residual stress caused in the heating extrusion and strengthens the molecular structure of the plastic plate. The present invention raises the heat resistance and reduces the deformation caused by ambient temperature change of the plastic plate.

Description

technical field [0001] The present invention is related to plastic plates, in particular to a plastic plate molding and shaping processing method. Background technique [0002] General plastic sheet 1 molding processing method, please refer to figure 1 As shown, its manufacturing steps are as follows: [0003] (A) Preparation of plastic raw materials 2: [0004] The plastic raw materials are fully mixed and stirred 2a, and then put into an extruder. [0005] (B) Extrusion operation 3: [0006] The plastic raw material is heated and softened in the extruder and transported to the screw of the extruder, so that the softened plastic is continuously extruded from the die of an extrusion mold by the screw or other pushing methods. [0007] (C) Cooling 4: [0008] The plastic extruded from the die of the extrusion mold is solidified and formed after being cooled by the forming mold. [0009] (D) Cutting job 5: [0010] Cut the cured semi-finished product into a predetermine...

Claims

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Application Information

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IPC IPC(8): B29C47/88
Inventor 粘铭陈栋荣
Owner NIEN MADE ENTERPRISE CO LTD
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