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A protection method for stainless steel plate in sheet metal process

A technology for stainless steel and plates, applied in the coating process of metal materials, etc., can solve problems such as no preventive measures, and achieve the effects of eliminating the tendency of intergranular corrosion, good corrosion protection, and simple processing methods

Active Publication Date: 2017-06-23
佛山市中力金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of intergranular corrosion of SUS301 stainless steel plate in the sheet metal process should be paid enough attention, but there is no relevant preventive method in the existing literature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A surface treatment agent for stainless steel plates in a sheet metal process of this embodiment, its composition and mass parts are: 5 parts of aluminum sulfate; 3 parts of silicone oil; 11 parts of glycerol; 2.5 parts of sodium pyrophosphate; 3 parts of oil-soluble phenolic resin 7 parts of silica sol; 1.5 parts of organic base ethanolamine; 0.9 parts of tribasic carboxylic acid borate; 1.5 parts of sodium alginate; 65 parts of deionized water.

[0037] The preparation process of this surface treatment agent is:

[0038] 1) Weighing in parts by mass: Stir and mix 5 parts by mass of aluminum sulfate, 2.5 parts by mass of sodium pyrophosphate and 65 parts by mass of deionized water to obtain a mixed solution;

[0039] 2) Heat the mixed solution obtained in step 1) to 60°C, add 11 parts by mass of glycerin and 7 parts by mass of silica sol to the heated mixed solution, and add 3 parts by mass of silicone oil and 3 parts by mass of oil-soluble Phenolic resin (the silicon...

Embodiment 2

[0048] A surface treatment agent for stainless steel plates in a sheet metal process of the present embodiment, its composition and mass parts are: 1 part of aluminum sulfate; 4 parts of silicone oil; 10 parts of glycerol; 3.5 parts of sodium pyrophosphate; 1 part of oil-soluble phenolic resin 9 parts of silica sol; 1.2 parts of tribasic carboxylic acid borate; 1 part of sodium alginate; 70 parts of deionized water.

[0049] The preparation process of this surface treatment agent is:

[0050] 1) Weighing in parts by mass: Stir and mix 1 part by mass of aluminum sulfate, 3.5 parts by mass of sodium pyrophosphate and 70 parts by mass of deionized water to obtain a mixed solution;

[0051] 2) Heat the mixed solution obtained in step 1) to 55°C, add 10 parts by mass of glycerol and 9 parts by mass of silica sol to the heated mixed solution, and add 4 parts by mass of silicone oil and 1 part by mass of oil-soluble Phenolic resin (the silicone oil used in this embodiment is methyl ...

Embodiment 3

[0060]A surface treatment agent for stainless steel plates in a sheet metal process of the present embodiment, its composition and mass parts are: 7 parts of aluminum sulfate; 2 parts of silicone oil; 12 parts of glycerol; 2 parts of sodium pyrophosphate; 4 parts of oil-soluble phenolic resin 6 parts of silica sol; 2 parts of organic base ethanolamine; 2 parts of sodium alginate; 60 parts of deionized water.

[0061] The preparation process of this surface treatment agent is:

[0062] 1) Weighing in parts by mass: Stir and mix 7 parts by mass of aluminum sulfate, 2 parts by mass of sodium pyrophosphate and 60 parts by mass of deionized water to obtain a mixed solution;

[0063] 2) Heat the mixed solution obtained in step 1) to 65°C, add 12 parts by mass of glycerin and 6 parts by mass of silica sol to the heated mixed solution, and add 2 parts by mass of silicone oil and 4 parts by mass of oil-soluble Phenolic resin (the silicone oil used in this embodiment is methyl silicone...

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PUM

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Abstract

The invention discloses a protection method of a stainless steel plate in a sheet metal process. The method comprises the following steps: 1) stirring and mixing aluminum sulfate, sodium pyrophosphate and deionized water to obtain a mixed liquid; 2) heating the mixed liquid, adding glycerin and silica sol, adding silicon oil and an oil-soluble phenolic resin; 3) controlling the temperature rise rate to be 1-2 DEG C / min, after the temperature reaches 75-85 DEG C, sequentially adding organic alkali ethanol amine and tricarboxylic acid boric acid ester, stirring, keeping warm, and adding sodium alginate, so as to obtain a surface treating agent; 4) stirring the surface treating agent when heating, and heating to 35-45 DEG C; 5) heating the stainless steel plate to 150-190 DEG C; 6) spraying the surface treating agent on the stainless steel plate, wherein the spraying thickness is 10-20mu m, carrying out heat preservation for 0.8-1.2 hours after spraying, and spraying for the second time; and 7) irradiating the stainless steel plate by virtue of a low-strength ultraviolet ray. According to the protection method, a sheet metal workpiece can be well subjected to corrosion protection; and the protection method is especially suitable for a SUS301 stainless steel plate.

Description

technical field [0001] The invention relates to the field of metal surface treatment, and more specifically, relates to a protection method for stainless steel plates in the sheet metal process. Background technique [0002] Generally speaking, the basic equipment of sheet metal technology includes shearing machine, CNC punching machine / laser, plasma, water jet cutting machine, bending machine and various auxiliary equipment such as: uncoiler, leveling machine, deburring machine, spot welding machine, etc. . Generally, the four most important steps in the sheet metal process are shearing, punching / cutting, folding, welding, surface treatment, etc. However, the traditional sheet metal process only considers the influence of physical properties, and does not take into account the chemical reaction. SUS301 is an austenitic stainless steel commonly used in sheet metal processing. Its corrosion resistance is poor. The incision of the sheet will be broken due to the stability of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/68C23C22/76
CPCC23C22/68C23C22/76
Inventor 蔡镜潮
Owner 佛山市中力金属制品有限公司