Preparation method of stainless steel-resin composite and stainless steel-resin composite prepared by same

A stainless steel and composite technology, which is applied in chemical instruments and methods, synthetic resin layered products, metal material coating processes, etc., can solve the problems of the influence of stainless steel matrix and the unsatisfactory bonding force between stainless steel and resin, and achieve small size influence. , suitable for mass production, unique structure effect

Active Publication Date: 2014-07-02
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems that the stainless steel substrate is easily affected when the stainless steel resin composite is prepared in the prior art, and the bonding force between the stainless steel and the resin is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0013] The invention provides a method for preparing a stainless steel resin composite body, comprising the following steps:

[0014] S1, thermal spraying aluminum powder on the surface of the pretreated stainless steel substrate, cooling to obtain stainless steel adhered to aluminum. Thermal spraying of aluminum powder on the surface of the stainless steel substrate can be to the entire surface of the stainless steel substrate, or to the surface of a part of the stainless steel substrate. Preferably, step S1 includes thermal spraying of aluminum powder on the surface of the pretreated stainless steel substrate that needs to be combined with resin, cooling , to obtain stainless steel with aluminum attached to the surface. Preferably, according to the design requirements, the surface to be combined with the resin layer can be thermally sprayed with aluminum powder, which will not affect the non-injection area, and does not require post-processing such as polishing or CNC. Gener...

Embodiment 1

[0039] This embodiment prepares the stainless steel resin complex;

[0040] 1. Pretreatment: Cut 1mm thick 304 stainless steel plate into 15mm*80mm rectangular slices, put it into a polishing machine for grinding, and then wash it with absolute ethanol, then sandblast it, rinse it with deionized water, 80 Drying at ℃ to obtain the pretreated stainless steel sheet;

[0041] 2. Surface treatment: Put the above stainless steel sheet into the mold, use the mold to cover the non-injection area, the 15mm*5mm area at one end of the stainless steel sheet is not covered, put the mold into a supersonic spraying machine, and the thermal spraying purity is 99.5wt% average particle Pure aluminum powder with a diameter of 30 microns, wherein the thermal spraying kerosene flow rate is 22L / h, the oxygen flow rate is 930L / min, the powder feeding rate is 75g / min, the spraying distance is 370mm, and the thickness of the sprayed aluminum powder is 100 microns . The obtained sample was taken out...

Embodiment 2

[0044] A stainless steel resin composite sample S2 was prepared in the same manner as in Example 1. The difference is the surface treatment of step 2: Put the above stainless steel sheet into the mold, use the mold to cover the non-injection area, the 15mm*5mm area at one end of the stainless steel sheet is not covered, put the mold into the supersonic spraying machine, and the thermal spraying purity is 99.5wt %Pure aluminum powder with an average particle diameter of 50 microns, wherein the thermal spraying kerosene flow rate is 22L / h, the oxygen flow rate is 930L / min, the powder feeding rate is 75g / min, the spraying distance is 370mm, and the thickness of the sprayed aluminum powder is to 100 microns. The obtained sample was taken out and placed at room temperature for 2 hours. After the sample was completely cooled, it was placed in 20wt% sodium hydroxide solution and soaked at a constant temperature of 30°C for 1 hour. After the aluminum layer on the surface of the sample...

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Abstract

Provided are stainless steel-resin composite and method of preparing the same. The method comprises steps of: providing a stainless steel substrate; spraying aluminum particles onto a first surface of the stainless steel substrate via thermal spraying to form an aluminum layer on the first surface of the stainless steel substrate; removing the aluminum layer via dipping the stainless steel substrate into an alkaline solution with a p H value greater than or equal to 10 so as to form a porous surface; and injecting a resin composition onto the porous surface of the stainless steel substrate so as to form a resin layer.

Description

technical field [0001] The present invention relates to a method for preparing a stainless steel resin composite and the stainless steel resin composite prepared therefrom, more specifically, to the preparation of a stainless steel resin composite formed by integrating stainless steel with a stronger binding force and a thermoplastic resin The method and the stainless steel resin composite body prepared therefrom. Background technique [0002] In the field of parts manufacturing of automobiles, household electrical appliances, industrial machines, etc., the integrated molding technology of metal and resin is required. At present, the industry uses adhesives to integrate metal and synthetic resin at room temperature or under heating. Although the above method can be used to prepare a composite body formed of metal and plastic, the bonding force between the metal and plastic of the composite obtained according to these methods is poor, and the adhesive has poor acid and alkali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29C45/14B32B15/08
CPCB32B27/32B29C45/14B29C45/16B32B15/08B29C45/14221B29C2045/14245B29C2045/14868B29K2705/00C23C4/08C23C4/18B32B15/085B32B15/088B32B15/09B32B15/18B32B27/20B32B38/10B32B2262/0261B32B2262/101B32B2262/106B32B2264/102B32B2264/104B32B2307/54B32B2307/542C23C4/02B29C45/14311B29K2023/06B29K2069/00B29K2071/00B29K2077/00B29K2081/04B29K2105/16B29K2509/00B29K2705/12C23F1/00
Inventor 章晓程云郭强
Owner BYD CO LTD
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