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A protection material and a fabrication method of metal-plastic composite part

A technology for protecting materials and production methods, applied in chemical instruments and methods, synthetic resin layered products, lamination, etc., can solve the problems of deformation of plastic parts, scald plastic parts, etc., to prevent burns, good protection, and good prevention Effects of electrostatic performance and dust removal performance

Inactive Publication Date: 2013-01-02
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the bonding of metal parts and plastic parts is mainly through heating, cooling and solidification of hot melt adhesives, although the metal parts are placed above the plastic parts during hot pressing, when part of the plastic parts are exposed For metal parts, the high-temperature hot-pressing upper mold will touch the exposed part of the plastic part, scald the plastic part, and cause serious deformation of the plastic part

Method used

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  • A protection material and a fabrication method of metal-plastic composite part
  • A protection material and a fabrication method of metal-plastic composite part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment 1 is used to make such as figure 1 As shown in the metal-plastic composite, the metal-plastic composite includes a metal panel 21 and a plastic shell 22, and the manufacturing method of the metal-plastic composite includes the following steps:

[0039] 1) Provide the metal panel 21 and the plastic shell 22. Put the metal panel 21 on the pre-pressing machine to pre-press the hot melt adhesive. for 3M 725;

[0040] 2) Install protective materials: fix the plastic shell 22 and the metal panel 21 on the lower mold, place the metal panel 21 above the plastic shell 22, the peripheral edge 221 of the plastic shell 22 exposes the metal panel 1, and the metal panel 21 Set the protective material on, such as figure 2 As shown, the protective material includes a dust-free cloth 12 and a high-temperature-resistant protective film 11 bonded to the dust-free cloth 12, so that the protective material completely covers the area where the plastic shell 22 exposes the ...

Embodiment 2

[0059] This embodiment 2 is used to make a metal-plastic composite, the structure of the metal-plastic composite is basically the same as the metal-plastic composite in embodiment 1, including a metal panel and a plastic shell, and the manufacturing method of the metal-plastic composite includes the following The above steps:

[0060] 1) Provide a metal panel and a plastic shell. Put the metal panel on the pre-pressing machine to pre-press the hot melt adhesive. Set the pre-pressing pressure to 0.6 Mpa, the temperature to 70°C, the pre-pressing time to 10S, and the hot-melt adhesive to be Sika Pa H192;

[0061] 2) Install protective material: fix the plastic shell and metal panel on the lower mold, place the metal panel above the plastic shell, and the periphery of the plastic shell exposes the metal panel; set protective material on the metal panel, the protective The material includes a dust-free cloth and a high-temperature-resistant protective film bonded to the dust-free...

Embodiment 3

[0066] This embodiment is used to make a metal-plastic composite, the metal-plastic composite has basically the same structure as the metal-plastic composite in Example 1, including a metal panel and a plastic shell, and the manufacturing method of the metal-plastic composite includes the following step:

[0067] 1) Provide a metal panel and a plastic shell, put the metal panel on the pre-pressing machine to pre-press the hot melt adhesive, set the pre-pressing pressure to 0.3Mpa, the temperature to 100°C, the pre-pressing time to 5S, and the hot-melt adhesive to TESA8475;

[0068]2) Install protective material: fix the plastic shell and metal panel on the lower mold, place the metal panel above the plastic shell, and the periphery of the plastic shell exposes the metal panel; set protective material on the metal panel, the protective The material includes a dust-free cloth and a high-temperature-resistant protective film bonded to the dust-free cloth, so that the protective m...

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Abstract

The invention provides a protection material, which comprises a high-temperature-resistant protection film and dustless cloth. The high-temperature-resistant protection film is bonded to the dustless cloth. The invention also provides the fabrication method of a metal-plastic composite part, which includes (1) providing a metal part and a plastic part, and pre-pressing hot-melt adhesive between the metal part and the plastic part; (2) placing the metal member above the plastic part which is provided with a region exposed from the metal part, and arranging a protection material on the metal part, wherein the protection material covers the region of the plastic part exposed from the metal part and the protection material adopts the above protection material; and (3) performing hot-melting to the metal part and the plastic part, cooling, and removing the protection material, to obtain the metal-plastic composite part. The inventive protection material has good high temperature resistance and heat-insulating property, can effectively protect the exposed part of the plastic part, to prevent scald, and improves the adhesive melting effect.

Description

technical field [0001] The invention relates to the field of hot-melt technology, and more specifically, relates to a protective material for making metal-plastic composite parts and a method for making metal-plastic composite parts. Background technique [0002] Metal-plastic composite parts are parts that combine metal parts made of metal and plastic parts made of plastic. They usually appear in the field of electronic products, for example, the combination of metal casings and plastic panels of electronic products. At present, there are two commonly used bonding methods for metal parts and plastic parts of electronic products: dispensing and double-sided adhesive bonding. Dispensing is prone to glue overflow problems. For parts with very strict appearance requirements, for example: the metal shell of electronic products is a first-class surface, it is difficult to meet the requirements for appearance with dispensing, and the dispensing process has high requirements on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/12B32B37/06B32B37/10
Inventor 马哲轩
Owner BYD CO LTD
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