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

A technology of stainless steel and composite body, which is applied in the direction of chemical instruments and methods, layered products, metal layered products, etc. It can solve the problems of high resin requirements, weak bonding force between stainless steel and resin, etc., and achieves wide application range and size influence Small, enhanced binding effect

Inactive 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 binding force between stainless steel and resin is weak in the stainless steel resin composite prepared in the prior art, and the requirement for resin is higher in the injection molding process

Method used

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

Examples

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preparation example Construction

[0014] The invention provides a method for preparing a stainless steel resin composite body, comprising the following steps:

[0015] S1, put the pretreated stainless steel substrate into the corrosion solution for electrochemical corrosion, the corrosion solution is hydrochloric acid with a mass concentration of 2-25wt% and / or a ferric chloride solution with a mass concentration of 5-35wt% . Surface treatment on the surface of the stainless steel substrate to form a unique surface structure, can form a unique pore structure on the surface of the stainless steel substrate, and densely distributed on the surface of the substrate, resin injection molding is easy, difficult to come out, and it is easier to obtain excellent bonding force Preferably, the corrosion solution is hydrochloric acid with a mass concentration of 5-20wt% and / or ferric chloride solution with a mass concentration of 10-35%, and it is further preferred that the corrosion solution is a mass concentration of 10...

Embodiment 1

[0037] In this embodiment, a stainless steel resin composite is prepared.

[0038] 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;

[0039] 2. Surface treatment: prepare 500ml of 10wt% hydrochloric acid in a beaker, put it in a constant temperature tank and heat it up to 30°C, use graphite electrodes as cathodes, and the above stainless steel sheets as anodes, with a voltage of 3V. After energizing at a constant voltage for 3 minutes, take out the samples and wash them with water. , soak in 5wt% sodium carbonate solution for 10 minutes, then take it out, wash it with water, and dry it at 80°C;

[0040] Adopt metallographic microscope to observe the surface of the stainless steel base material after above-mentioned surface treatment, get ...

Embodiment 2

[0043] A stainless steel resin composite sample S2 was prepared in the same manner as in Example 1. The difference is that in step 2, the voltage of electrochemical corrosion is 6V, the time is 3min, and the temperature of hydrochloric acid is 30°C. The same method as in Example 1 was used to measure that the surface of the stainless steel substrate contained holes with a maximum diameter of about 70 microns.

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Abstract

The invention relates to a preparation method of a stainless steel-resin composite and a stainless steel-resin composite prepared by the same. The preparation method comprises the following steps: S1. putting a pretreated stainless steel substrate in a corrosive solution to perform electrochemical corrosion, wherein the corrosive solution is a 2-25 wt% hydrochloric acid and / or 5-35 wt% iron trichloride solution; and S2. carrying out injection molding on a resin composition to the surface of the stainless steel substrate obtained in the step S1, and forming to obtain the stainless steel-resin composite. The stainless steel-resin composite has the advantages of high binding force between stainless steel and resin, simple technique, low requirements for resin, wide application range and no pollution, and can easily implement large-scale production.

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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IPC IPC(8): B29C45/16B29C45/14B32B15/08
CPCB29C45/14B29C2045/14868B32B15/08
Inventor 章晓程云孙剑陈梁
Owner BYD CO LTD
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