Stainless steel anticorrosion passivation paste and preparation method thereof

A passivation paste, stainless steel technology, applied in the direction of metal material coating process, etc., can solve the problems of high cost, stainless steel harm, and decreased pickling passivation ability, and achieve the effect of mild nature and good removal effect.

Inactive Publication Date: 2017-12-01
SUZHOU JILI STAINLESS STEEL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes how it can be used for protecting surfaces from corrosion caused by certain substances like oxygen or water vapor that may attack them during storage time without causing any harmful side-effects such as rustiness or other issues associated therewith.

Problems solved by technology

This patented technical problem addressed in this patents relates to reducing the risk associated with conventional cleaning techniques during metal processing operations due to their harsh chemical properties and potential negative impact upon human health or safety concerns. Current solutions involve multiple steps involving separate treatments followed by reapplication of existing coatings like epoxy resin powder or tin solder.

Method used

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  • Stainless steel anticorrosion passivation paste and preparation method thereof
  • Stainless steel anticorrosion passivation paste and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0016] A stainless steel anticorrosion passivation paste, comprising the following components in parts by weight: 2 parts of sodium tripolyphosphate, 1.5 parts of fluorosilicic acid, 1.8 parts of calcium hydroxide, 0.8 parts of phosphoric acid, 1.5 parts of cocoyl imidazoline, and oleic acid diethanol 0.8 parts of amide, 0.2 parts of chitosan, 0.8 parts of urotropine, 0.5 parts of epoxy octyl stearate, and 9 parts of water.

[0017] Add sodium tripolyphosphate, fluorosilicic acid, calcium hydroxide, phosphoric acid, cocoyl imidazoline, oleic acid diethanolamide, chitosan, urotropine, epoxy octyl stearate, and water into the reactor in proportion In the middle, heat up to 40~50°C, stir and mix evenly, and it is obtained.

Embodiment 2

[0019] A stainless steel anticorrosion passivation paste, comprising the following components in parts by weight: 1 part of sodium tripolyphosphate, 1 part of fluorosilicate, 1 part of calcium hydroxide, 0.5 part of phosphoric acid, 1 part of cocoyl imidazoline, and oleic acid diethyl alcohol 0.5 part of amide, 0.1 part of chitosan, 0.5 part of urotropine, 0.1 part of epoxy octyl stearate, 5 parts of water.

[0020] Add sodium tripolyphosphate, fluorosilicic acid, calcium hydroxide, phosphoric acid, cocoyl imidazoline, oleic acid diethanolamide, chitosan, urotropine, epoxy octyl stearate, and water into the reactor in proportion In the middle, heat up to 40~50°C, stir and mix evenly, and it is obtained.

Embodiment 3

[0022] A stainless steel anticorrosion passivation paste, comprising the following components in parts by weight: 5 parts of sodium tripolyphosphate, 2 parts of fluorosilicic acid, 2 parts of calcium hydroxide, 1 part of phosphoric acid, 2 parts of cocoyl imidazoline, oleic acid diethyl alcohol 1 part of amide, 0.3 part of chitosan, 1 part of urotropine, 1 part of epoxy octyl stearate, 10 parts of water.

[0023] Add sodium tripolyphosphate, fluorosilicic acid, calcium hydroxide, phosphoric acid, cocoyl imidazoline, oleic acid diethanolamide, chitosan, urotropine, epoxy octyl stearate, and water into the reactor in proportion In the middle, heat up to 40~50°C, stir and mix evenly, and it is obtained.

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Abstract

The invention discloses a stainless steel anticorrosion passivation paste, which comprises the following components in parts by weight: 1-5 parts of sodium tripolyphosphate, 1-2 parts of fluosilicic acid, 1-2 parts of calcium hydroxide, 0.5-1 part of phosphoric acid, Cocoyl imidazoline 1~2 parts, oleic acid diethanolamide 0.5~1 part, chitosan 0.1~0.3 part, urotropine 0.5~1 part, epoxy octyl stearate 0.1~1 part, water 5 ~10 servings. The stainless steel anticorrosion passivation paste has a good removal effect on oxides on the surface of stainless steel, and the removal rate reaches over 99%. The product is mild in nature and will not cause secondary damage to the surface of stainless steel, and has commercial application value.

Description

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Claims

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Application Information

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Owner SUZHOU JILI STAINLESS STEEL PROD
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