Process of coating stainless steel with plastic

A technology of stainless steel and plastic coating, applied in the field of stainless steel plastic coating, can solve the problems of not being able to apply, not being able to make stainless steel colorful and colorful

Inactive Publication Date: 2007-10-03
SHAOXING XINJIAN METAL DECORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method of plastic-coating the stainless steel pipe improves the application performance of the stainless steel pipe to a certain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The stainless steel plastic-coating method of the present invention includes three steps of stainless steel pretreatment, spraying and baking. The following specific example will describe the above three steps in detail

[0020] 1. Pretreatment: Put solution A, clear water, lye, clear water, solution E, clear water, and solution G in seven tanks in sequence.

[0021] 1. Preparation of solution A in the first cylinder:

[0022] Prepare mixture A first. Mixture A is composed of acid, degreaser and rust remover. Take 1000 grams of coconut oil (as degreaser) and 500 grams of alkanediethanolamide (as rust remover). After mixing, complete mixture A preparation. In the preparation of the above mixture A, the amount of alkanediethanolamide (as a rust remover) can also be 1000 grams or 2000 grams or 1500 grams without changing the amount of 1000 grams of coconut oil (as a degreasing agent) ; In addition, the pH value of the solution can also be adjusted to 2 or 3 or 5.

[002...

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PUM

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Abstract

The process of coating stainless steel with plastic includes three procedures of pre-treatment, spraying and firing. The pre-treatment of stainless steel includes the steps of surface decontaminating, washing, neutralizing washing, phosphatizing, washing and deactivating; in the spraying procedure, plastic is sprayed onto stainless steel electrostatically; and in the stoving procedure, the stainless steel after spraying plastic is fired at temperature not lower than 200 deg.c for over 55 min before being maintained for over 8 min. The sprayed plastic has high adhesion and is color fast.

Description

technical field [0001] The invention relates to a method for surface treatment of stainless steel, more specifically a method for covering stainless steel with plastic. Background technique [0002] In layman's terms, stainless steel is steel that is not easy to rust. In fact, some stainless steel has both stainless and acid resistance (corrosion resistance). The stainless and corrosion resistance of stainless steel is due to the formation of a chromium-rich oxide film (passive film) on its surface. This rust and corrosion resistance are relative. The test shows that the corrosion resistance of steel increases with the increase of the chromium water content in the steel in weak media such as air and water and in oxidizing media such as nitric acid. When the chromium content reaches a certain percentage, the corrosion resistance of steel occurs. Mutation, that is, from easy to rust to not easy to rust, from non-corrosion resistant to corrosion resistant. There are many cla...

Claims

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Application Information

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IPC IPC(8): C23C28/00C23G1/02C23G1/14C23C22/13C23C22/24B05D7/24B05D3/02
Inventor 周金弟
Owner SHAOXING XINJIAN METAL DECORATION
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