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ABS plastic television shell injection molding technology

A technology of ABS plastics and televisions, applied in household components, household appliances, and other household appliances, can solve problems such as large internal stress, achieve the effects of shortening the cycle, improving product quality and appearance, and reducing pollution

Inactive Publication Date: 2017-02-01
滁州市天悦塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiencies of the existing technology, and provides an ABS plastic TV casing injection molding process, which simplifies the process steps, shortens the cycle, and solves the problems of relatively large internal stress inside the finished plastic parts, and then extremely Greatly improved the product quality and appearance, molding pass rate, etc., prolonging the service life of the product and meeting the actual use requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0021] A kind of ABS plastic TV casing injection molding process described in this embodiment, this technology is implemented based on corresponding injection molding system and injection mold, described injection molding system comprises several screw barrels, and described injection mold comprises a plurality of hot runners The hot flow system and the cold flow system composed of multiple cold runners;

[0022] Step (1), raw material pretreatment: use an oven to preheat the ABS plastic for 2 hours, and then use a dry cold air flow to precool the ABS plastic for 1 hour. The temperature of the preheating treatment is 80°C. The temperature of cold treatment is 5°C;

[0023] Step (2), injection molding system and injection mold pretreatment: heat several screw barrels in the injection molding system to 220°C, and pass high-temperature dry hot air into the hot runner of the injection mold to heat the average price of the injection mold to 240°C;

[0024] Step (3), plasticization...

specific Embodiment 2

[0034] A kind of ABS plastic TV casing injection molding process described in this embodiment, this technology is implemented based on corresponding injection molding system and injection mold, described injection molding system comprises several screw barrels, and described injection mold comprises a plurality of hot runners The hot flow system and the cold flow system composed of multiple cold runners;

[0035] Step (1), raw material pretreatment: use an oven to preheat the ABS plastic for 2 hours, and then use a dry cold air flow to precool the ABS plastic for 1 hour. The temperature of the preheating treatment is 90°C. The temperature of cold treatment is 7.5°C;

[0036] Step (2), injection molding system and injection mold pretreatment: heat several screw barrels in the injection molding system to 240°C, pass high-temperature dry hot air into the hot runner of the injection mold to heat the average price of the injection mold to 260°C;

[0037] Step (3), plasticization: ...

specific Embodiment 3

[0047] A kind of ABS plastic TV casing injection molding process described in this embodiment, this technology is implemented based on corresponding injection molding system and injection mold, described injection molding system comprises several screw barrels, and described injection mold comprises a plurality of hot runners The hot flow system and the cold flow system composed of multiple cold runners;

[0048] Step (1), raw material pretreatment: use an oven to preheat the ABS plastic for 2 hours, and then use a dry cold airflow to precool the ABS plastic for 1 hour. The temperature of the preheating treatment is 100°C. The temperature of cold treatment is 10°C;

[0049] Step (2), injection molding system and injection mold pretreatment: heat several screw barrels in the injection molding system to 260°C, pass high-temperature dry hot air into the hot runner of the injection mold to heat the average price of the injection mold to 280°C;

[0050] Step (3), plasticization: A...

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Abstract

The invention discloses an ABS plastic television shell injection molding technology. The technology is implemented on the basis of a corresponding injection molding system and an injection molding die. The injection molding system comprises a plurality of spiral cylinders. The injection molding die comprises a heat flow system formed by multiple heat flow channels, and a cold flow system formed by multiple cold flow channels. The technology comprises the step one of raw material pretreatment; the step two of injection molding system and injection molding die pretreatment; the step three of plastifying; the step four of injection; the step five of pressure maintaining; the step six of cooling and forming; and the step seven of die releasing. According to the technology, the steps of the technology are simplified, the period is shortened, the problem that inner stress exists in formed finished plastic products is solved, then the product quality and attractiveness are improved greatly, the forming yield and the like are increased greatly, the service life of the products is prolonged, and the requirement of actual use is met.

Description

technical field [0001] The invention relates to an injection molding process for an ABS plastic TV casing, and belongs to the technical field of injection molding technology for a TV casing. Background technique [0002] With the continuous development of science and technology and the continuous improvement of people's material living standards, the functional requirements and appearance requirements of TV sets are getting higher and higher, such as the surface finish and precision of TV casings. In order to improve the surface quality of injection molded products, a spraying process is usually used in the existing technology. Spraying is the most basic, broadest and most effective method used in surface protection. Spraying can ensure that the surface of the TV casing has anti-corrosion function and bright appearance. The quality of spraying is directly related to the competitiveness of products and market development. However, while providing beautiful and durable produ...

Claims

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Application Information

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IPC IPC(8): B29C45/03B29C45/77B29C45/73B29L31/34
CPCB29C45/03B29C45/73B29C45/77B29C2045/1784B29L2031/3475
Inventor 陈结林陈江林
Owner 滁州市天悦塑胶制品有限公司
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