Stainless steel and plastic combined part and machining method thereof
A processing method, stainless steel technology, applied in the direction of coating, etc., can solve problems such as poor reliability and unstable process, and achieve the effects of wide application range, shortened process flow, and reduced production cost
Inactive Publication Date: 2017-07-21
GOERTEK INC
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Problems solved by technology
[0004] Therefore, if this nano-injection method is used to combine plastics on stainless steel, the composite product formed after the combination has many problems such as unstable process and poor reliability.
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[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0039] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.
[0040] In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...
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The invention discloses a stainless steel and plastic combined part and a machining method thereof. The combined part includes a stainless steel base material. After the stainless steel base material is subjected to heat treatment at the temperature of 400 DEG C to 900 DEG C and then subjected to etching of corrosive liquid, multiple concave structures are formed in the surface of the stainless steel base material, wherein the average depth of the concave structures ranges from 0.1 micron to 30 microns, and the average width of the concave structures ranges from 0.2 micron to 15 microns. Plastic is formed on the stainless steel base material in an injection molding manner, and part of structures of the plastic are embedded in the concave structures. The stainless steel base material in the stainless steel and plastic combined part is subjected to heat treatment at the temperature of 400 DEG C to 900 DEG C, a serious poor-chromium area is formed, and then the multiple micro-order concave structures are formed in the poor-chromium area after etching of the corrosive liquid. After injection molding is conducted, the combined part is better is stability and better in air tightness. The technological process is shortened, the production cost is reduced, and the combined part is more suitable for large-scale production. No requirement for special materials exists for injection molding materials, and the application range is wider.
Description
technical field [0001] The invention relates to the technical field of product compounding, in particular, the invention relates to a combination piece of stainless steel and plastic and a processing method thereof. Background technique [0002] With the rapid development of the electronics industry, more and more electronic product shells are made of composite products formed by combining metal and plastic, in order to achieve the purpose of metal appearance and plastic interior. [0003] At present, in the combination method of metal and plastic injection molding, nanoscale pores are generally formed on the surface of the metal substrate through multiple processing procedures, and the nanoscale pores are generally perpendicular to the metal substrate. Specifically, micron-scale macropores can be formed on the surface of the metal substrate first, and then further corroded to form nanoscale small pores. And in order to achieve a better filling effect, it is often necessary...
Claims
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Login to View More IPC IPC(8): B29C45/14C23F1/28
CPCB29C45/14B29C2045/14868C23F1/28
Inventor 张法亮董晓佳王成张孟军刘鸿章唐红平刘利强
Owner GOERTEK INC