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Environment-friendly removal powder of hanger

An environment-friendly and decoupling technology, applied in the field of decoupling powder, can solve the problems of shortening the service life of hooks, environmental pollution, high electrolysis energy consumption, difficult and harmless treatment of sewage, etc. Excellent effect, faster peeling effect

Inactive Publication Date: 2016-11-09
HUIZHOU CITY HIROMI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using strong corrosive agents such as nitric acid to peel off the coating will easily generate a large amount of exhaust gas to pollute the air, cause acid rain, easily corrode the hook, and shorten the service life of the hook
And a large amount of reagents such as electrolytic de-hanging water are also likely to cause serious environmental pollution and high electrolysis energy consumption.
At the same time, the nitrates and ammonium salts used in electrolytic decoupling will cause the discharge of ammonia nitrogen to exceed the standard. It is often difficult to completely eliminate ammonia nitrogen with existing technologies, and it is difficult to treat the discharged sewage harmlessly.

Method used

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  • Environment-friendly removal powder of hanger
  • Environment-friendly removal powder of hanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a kind of environment-friendly decoupling powder, and its raw material comprises by weight:

[0029] Oxidizing agent: 80 parts;

[0030] Corrosion inhibitor: 30 parts;

[0031] The first complexing agent: 40 parts;

[0032] The second complexing agent: 60 parts;

[0033] Buffer: 30 parts;

[0034] Wherein, the oxidizing agent is nitrate, the corrosion inhibitor is diacetate, the first complexing agent is an alcohol compound, the second complexing agent is an alcohol amine salt, and the buffering agent is Acetic acid or acetate.

[0035] In this embodiment, the detachable substrate is made of 304 stainless steel. The oxidizing agent is ammonium nitrate, the corrosion inhibitor is sodium diacetate, the first complexing agent is mannitol, the second complexing agent is triethanolamine, and the buffering agent is glacial acetic acid.

Embodiment 2

[0037] The present embodiment provides a kind of environment-friendly decoupling powder, and its raw material comprises by weight:

[0038] Oxidizing agent: 80 parts;

[0039] Corrosion inhibitor: 50 parts;

[0040] The first complexing agent: 20 parts;

[0041] The second complexing agent: 60 parts;

[0042] Buffer: 30 parts;

[0043] Wherein, the oxidizing agent is nitrate, the corrosion inhibitor is diacetate, the first complexing agent is an alcohol compound, the second complexing agent is an alcohol amine salt, and the buffering agent is Acetic acid or acetate.

[0044] In this embodiment, the detachable substrate is made of 304 stainless steel. The oxidizing agent is ammonium nitrate, the corrosion inhibitor is sodium diacetate, the first complexing agent is mannitol, the second complexing agent is triethanolamine, and the buffering agent is glacial acetic acid.

Embodiment 3

[0046] The present embodiment provides a kind of environment-friendly decoupling powder, and its raw material comprises by weight:

[0047] Oxidizing agent: 80 parts;

[0048] Corrosion inhibitor: 50 parts;

[0049] The first complexing agent: 40 parts;

[0050] The second complexing agent: 40 parts;

[0051] Buffer: 30 parts;

[0052] Wherein, the oxidizing agent is nitrate, the corrosion inhibitor is diacetate, the first complexing agent is an alcohol compound, the second complexing agent is an alcohol amine salt, and the buffering agent is Acetic acid or acetate.

[0053] In this embodiment, the detachable substrate is made of 304 stainless steel. The oxidizing agent is ammonium nitrate, the corrosion inhibitor is sodium diacetate, the first complexing agent is mannitol, the second complexing agent is triethanolamine, and the buffering agent is glacial acetic acid.

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PUM

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Abstract

The invention discloses environment-friendly removal powder of a hanger. The removal powder comprises the following raw materials in parts by weight: 50-100 parts of an oxidizing agent, 30-60 parts of a corrosion inhibitor, 20-50 parts of a first complexing agent, 40-80 parts of a second complexing agent and 15-40 parts of a buffering agent, wherein the oxidizing agent is nitrate; the corrosion inhibitor is diacetate; the first complexing agent is an alcohol compound; the second complexing agent is alcohol amine salt; and the buffering agent is acetic acid or acetate. The powder product provided by the invention is convenient to store and transport, and is lower in cylinder opening cost and longer in service life in comparison with a traditional water agent product; the powder is a single product, so that the maintenance operation is simple and convenient; the powder conforms to environment-friendly standards, can rapidly remove copper, nickel, chromium, zinc and other metals on plating hangers at one time and does not corrode the basic body of the hanger.

Description

technical field [0001] The invention relates to a decoating powder, in particular to an environment-friendly decoating powder used in the electroplating industry. Background technique [0002] In the field of electroplating technology, a hanger is generally used to fix the product and immerse it in the plating solution to complete the electroplating process. The main body of the hanger is generally 304 stainless steel and other metals. During electroplating, the current discharges between the hanger hook and the electroplated product to deposit nickel, chromium, copper, tin, zinc and other coatings. The electroplating layer affects the conductivity of the hanger hook and the electroplated product, and affects the plating effect. . Due to the comprehensive influence of various factors such as machinery and equipment, materials, and operating methods in the actual electroplating process, defective electroplating products often appear in industrial production, causing a lot of...

Claims

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Application Information

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IPC IPC(8): C25F5/00
CPCC25F5/00
Inventor 叶洪城叶洪源
Owner HUIZHOU CITY HIROMI CHEM CO LTD