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Stainless steel plastic composite body and preparation method thereof

A stainless steel and composite technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of poor adhesion, unable to ensure complete hole filling, etc., to ensure air tightness, quality And the effect of stable performance and low cost

Active Publication Date: 2020-04-10
COXON PRECISE INDAL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under this pore size, there is no guarantee that the plastic will fill each hole completely, and the adhesion is not good, so there is still room for improvement in the bonding strength of metal and plastic

Method used

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  • Stainless steel plastic composite body and preparation method thereof
  • Stainless steel plastic composite body and preparation method thereof
  • Stainless steel plastic composite body and preparation method thereof

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with specific embodiments, and the advantages and characteristics of the present invention will become clearer along with the description. However, these embodiments are only exemplary and do not constitute any limitation to the scope of the present invention. Those skilled in the art should understand that the details and forms of the technical solutions of the present invention can be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the protection scope of the present invention.

[0041] Please refer to figure 2 , figure 2 It is a sectional view of an embodiment of the stainless steel-plastic composite body provided by the present invention. The stainless steel-plastic composite body 100 includes a stainless steel substrate 10 and a plastic layer 20 bonded to the surface of the stainless steel subst...

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PUM

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Abstract

The invention discloses a stainless steel and plastic composite and a preparation method thereof. The preparation method comprises the steps of carrying out degreasing, roughening, micro-etching, blackening, etching and replacing and the like sequentially on the surface of a stainless steel substrate till the average pore diameter of nanopores in the surface of the substrate is increased form common 20-50nm to 60-250nm, and then injecting the molten plastic onto the dried surface of the stainless steel substrate, so as to form a plastic layer, which can fill the nanopores deeper, resulting inhigher adhesion. The joint strength and air tightness between the stainless steel substrate and the plastic layer are higher, thereby improving the reliability and the use performance of the stainlesssteel and plastic composite.

Description

technical field [0001] The invention relates to a composite of stainless steel and plastic and a preparation method thereof, in particular to a composite of stainless steel and plastic whose bonding strength is improved through a nano-hole structure and a preparation method thereof. Background technique [0002] 3C electronic products usually inject metal and plastic materials into the mold to increase the strength of the product, reduce the overall thickness of the product, or to obtain the desired appearance and texture. However, due to poor bonding between metal and plastic, it is necessary to make various occlusal structures, such as undercuts and notches, to firmly integrate each other during production; however, this method will greatly increase the production cost. [0003] At present, there is a nano-molding technology, which first corrodes the metal surface to form a fine nano-hole structure, and then directly injects plastic into the nano-holes on the metal surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/26B32B15/09B32B15/08B32B15/088B32B27/28B32B27/36B32B27/34B29C45/14B29B11/14
CPCB29C45/14336B29C2045/14868B32B3/26B32B15/08B32B15/088B32B15/09B32B27/285B32B27/34B32B27/36
Inventor 张文桐苏忠义
Owner COXON PRECISE INDAL