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Preparing method for antibacterial stainless steel composite workpiece

A technology of antibacterial stainless steel and composite parts, which is applied in the direction of coating, etc., can solve the problems of low composite fastness, affect the use experience, and easy to breed bacteria, etc., and achieve the effect of good integration and strong binding force

Inactive Publication Date: 2018-11-02
FOSHAN GAOMING LIGANG PRECISION CASTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual application process, the composite parts made of stainless steel parts and plastic materials have the problem of low composite fastness. At the same time, in the process of being used as consumer electronics, due to more contact with the human body, the composite surface is easy to gather The dirt generated during use can easily breed bacteria and affect the user experience

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] What is used in this embodiment is a composite material composed of 12Cr12 steel plate with a length, width and height of 10cm×8cm×1cm and antibacterial PP plastic. The specific preparation method is as follows:

[0022] Step 1, take the above stainless steel plate, first immerse the stainless steel plate in the enhanced corrosion solution, the enhanced corrosion solution is a deionized aqueous solution containing 5wt% nitric acid, 5wt% hydrochloric acid, 3wt% hydrofluoric acid and 5wt% ferric chloride, at 60 ° C After corroding in the enhanced corrosion solution for 15s, immerse in circulating saturated picric acid deionized aqueous solution at 40°C for 60s. The saturated picric acid deionized aqueous solution is also added with 2wt% corrosion inhibitor, the corrosion inhibitor is rosin amine polyoxyethylene Mixed addition of ether and thiourea 1:0.8. After taking it out, use spray water to rinse and dry the corrosion surface of stainless steel, and the cleaning proce...

Embodiment 2

[0027] What is used in this embodiment is a composite material composed of 06Cr13 steel plate with a length, width and height of 10cm×8cm×1cm and antibacterial PE plastic. The specific preparation method is as follows:

[0028] Step 1, take the above stainless steel plate, first immerse the stainless steel plate in the enhanced corrosion solution, the enhanced corrosion solution is a deionized aqueous solution containing 5wt% nitric acid, 5wt% hydrochloric acid, 3wt% hydrofluoric acid and 5wt% ferric chloride, at 65 ° C After corroding in the enhanced corrosion solution for 15s, immerse in circulating saturated picric acid deionized aqueous solution at 40°C for 60s. The saturated picric acid deionized aqueous solution is also added with 2wt% corrosion inhibitor, the corrosion inhibitor is rosin amine polyoxyethylene Mixed addition of ether and thiourea 1:0.8. After taking it out, use spray water to rinse and dry the corrosion surface of stainless steel, and the cleaning proce...

Embodiment 3

[0033] What is used in this embodiment is a composite material composed of 06Cr13 steel plate with a length, width and height of 10cm×8cm×1cm and antibacterial PVC plastic. The specific preparation method is as follows:

[0034] Step 1, take the above stainless steel plate, first immerse the stainless steel plate in the enhanced corrosion solution, the enhanced corrosion solution is a deionized aqueous solution containing 5wt% nitric acid, 5wt% hydrochloric acid, 3wt% hydrofluoric acid and 5wt% ferric chloride, at 60 ° C After corroding in the enhanced corrosion solution for 15s, immerse in the circulating saturated picric acid deionized aqueous solution at 45°C for 55s. The saturated picric acid deionized aqueous solution is also added with 5wt% corrosion inhibitor, the corrosion inhibitor is rosin amine polyoxyethylene Mixed addition of ether and thiourea 1:0.8. After taking it out, use spray water to rinse and dry the corrosion surface of stainless steel, and the cleaning ...

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Abstract

The invention discloses a preparing method for an antibacterial stainless steel composite workpiece. The preparing method comprises the following steps that firstly, a stainless steel material is taken and subjected to corrosion etching treatment, the surface roughness Ra of treated stainless steel is 10-50 microns, and the thickness of the stainless steel material is not lower than 5 mm; and secondly, after a layer of promoting bonding agent is sprayed to the surface of the stainless steel material, temperature rise is conducted to 50-60 DEG C, an antibacterial plastic layer with the thickness being 0.1-2 mm is formed on the surface of the stainless steel through in-mold injection molding under the vacuum condition, and accordingly the antibacterial stainless steel composite workpiece ismanufactured. The stainless steel material prepared through the method and plastic materials are high in binding force and good in integrity, a certain antibacterial function is achieved, and the antibacterial stainless steel composite workpiece is suitable for being applied to products frequently making contact with the human bodies to serve a structure workpiece.

Description

technical field [0001] The invention belongs to the field of stainless steel composite materials, and in particular relates to a preparation method of antibacterial stainless steel composite parts. Background technique [0002] Stainless steel materials are widely used in miniaturized products, especially in the field of 3C electronics. Due to their good formability, high strength, high hardness, and good corrosion resistance, stainless steel materials are widely used in consumer electronics such as mobile phones and computers. product. Consumer electronic products are currently demanding more and more metal material structures. With the development of thinner and smaller consumer electronic products, traditional stainless steel parts have a wide range of raw materials and good formability, but due to their relatively high density It is difficult to meet the requirements of reducing the thickness and quality of components without greatly affecting the structural strength in...

Claims

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Application Information

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IPC IPC(8): B29C45/14C23F1/28
CPCB29C45/14778B29C2045/14868C23F1/28
Inventor 王立峰
Owner FOSHAN GAOMING LIGANG PRECISION CASTING CO LTD
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