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Full coated encapsulate formed article and its forming method

A technology of molding and surface coating, applied in the direction of coating, etc., can solve the problems of difficult control of process factors.

Inactive Publication Date: 2006-06-07
HANNSPREE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to form a fully-covered plastic-coated molded product, in addition to the above-mentioned process factors that are difficult to control, if the surface of the molded plastic part is to be completely covered, it is impossible to directly provide a fixed position on the surface to resist the injection of the plastic coating material motivation

Method used

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  • Full coated encapsulate formed article and its forming method
  • Full coated encapsulate formed article and its forming method
  • Full coated encapsulate formed article and its forming method

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Embodiment Construction

[0029] Please refer to figure 1 , figure 1 It is a schematic diagram showing the molding steps of the polymer material of the present invention, which uses a material mold 10 to form a polymer material 20, wherein the material 20 is preferably selected from a material with a high heat distortion temperature, such as polycarbonate (polycarbonate, PC) Or ABS (acrylonitrile butadienestyrene); in addition, it is more preferable if it is a combination of the aforementioned substances. In the present invention, in order to counteract the deformation problems such as shrinkage stress produced when the lagging is covered with thermoplastic elastomer as described later, the material is preferably a composite material of polycarbonate (PC) plus ABS GE C2800 , and its physical properties are shown in Table 1. In addition, the material 20 can be added with other additives such as fillers, reinforcing agents, processing aids, flow promoters or pigments according to actual needs. After t...

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Abstract

The present invention provides a kind of fully coated article and its forming process. The forming process includes the following steps: forming polymer biscuit in mold; setting the biscuit in room temperature for 15-30 hr to stabilize size; setting the biscuit inside coating mold with notches; injecting coating material of thermoplastic elastomer in hardness 70-90 A at the jetting speed of 12-28 cu cm / sec into the coating mold at 160-210 deg C to fill the notches with the coating material and to form surface coating on the biscuit; hardening the coating material; taking out the coated article and cooling to obtain the fully coated article.

Description

technical field [0001] The invention relates to an encapsulation technology for forming an all-round encapsulation, in particular to a method for forming an all-encompassing encapsulation to achieve a good encapsulation effect by effectively controlling process conditions. Background technique [0002] With the advancement of science and technology, the encapsulation technology of products, especially electronic products, is also constantly innovating to improve surface treatment technology. [0003] Generally speaking, in order to achieve the purpose of insulation and aesthetics, it is often necessary to use encapsulation technology. Known common encapsulation methods include: spraying rubber paint directly on the surface of the material to be encapsulated, using sticky adhesive Attach the lagging material to the surface of the material to be glued. However, the overmolded products formed by the above two methods are prone to lack of adhesion and peeling off due to natural...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29C45/26B29C45/36B29C45/72B29K21/00B29K55/02B29K69/00B29K75/00
Inventor 黄文鸿詹诗圣蔡欣恬
Owner HANNSPREE INC
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