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Stainless steel acid pickling accelerant and application thereof

A pickling accelerator, stainless steel technology, applied in the field of metal surface treatment, can solve the problems of uncleanness and slow speed, and achieve the effect of promoting pickling speed, odorless and stable performance

Inactive Publication Date: 2016-02-10
SUZHOU GAIDE FINE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pickling is a commonly used surface treatment method. The commonly used acids for pickling include hydrochloric acid, nitric acid, sulfuric acid and hydrofluoric acid. pickling accelerator

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A stainless steel pickling accelerator, in parts by weight, comprises the following components:

[0035] 20 parts of fruit peel extract, 10 parts of sodium citrate,

[0036] 5 parts of polyacrylamide, 5 parts of thiourea,

[0037] 4 parts of polylactic acid, 2 parts of eugenol,

[0038] 3 parts of linalool, 2 parts of octylphenol polyoxyethylene ether,

[0039] 2 parts of fatty alcohol polyoxyethylene ether,

[0040] 1 part of surfactant, 30 parts of deionized water.

[0041] Its preparation method comprises the following steps:

[0042] Mix polyacrylamide, thiourea, polylactic acid, eugenol, linalool, octylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether, stir at 50°C for 1 hour, cool down to room temperature, and continue to add peel extract , sodium citrate, surfactant and deionized water, ultrasonic 1h, get stainless steel pickling accelerator.

Embodiment 2

[0044] A stainless steel pickling accelerator, in parts by weight, comprises the following components:

[0045] 30 parts of fruit peel extract, 20 parts of sodium citrate,

[0046] 9 parts of polyacrylamide, 10 parts of thiourea,

[0047] 10 parts of polylactic acid, 5 parts of eugenol,

[0048] 7 parts of linalool, 5 parts of octylphenol polyoxyethylene ether,

[0049] 5 parts of fatty alcohol polyoxyethylene ether,

[0050] 2 parts of surfactant, 60 parts of deionized water.

[0051] Its preparation method comprises the following steps:

[0052] Mix polyacrylamide, thiourea, polylactic acid, eugenol, linalool, octylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether, stir at 60°C for 2 hours, cool down to room temperature, and continue to add peel extract , sodium citrate, surfactant and deionized water, ultrasonic 2h, to get stainless steel pickling accelerator.

Embodiment 3

[0054] A stainless steel pickling accelerator, in parts by weight, comprises the following components:

[0055] 22 parts of fruit peel extract, 12 parts of sodium citrate,

[0056] 6 parts of polyacrylamide, 6 parts of thiourea,

[0057] 5 parts of polylactic acid, 3 parts of eugenol,

[0058] 4 parts of linalool, 3 parts of octylphenol polyoxyethylene ether,

[0059] 3 parts of fatty alcohol polyoxyethylene ether,

[0060] 1.2 parts of surfactant, 40 parts of deionized water.

[0061] Its preparation method comprises the following steps:

[0062] Mix polyacrylamide, thiourea, polylactic acid, eugenol, linalool, octylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether, stir at 55°C for 1.2h, cool down to room temperature, and continue to add peel to extract material, sodium citrate, surfactant and deionized water, ultrasonic 1.2h, to obtain stainless steel pickling accelerator.

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Abstract

The invention discloses a stainless steel acid pickling accelerant. The stainless steel acid pickling accelerant comprises, by weight, 20-30 parts of peel extract, 10-20 parts of sodium citrate, 5-9 parts of polyacrylamide, 5-10 parts of thiourea, 4-10 parts of polylactic acid, 2-5 parts of eugenol, 3-7 parts of linalool, 2-5 parts of polyoxyethylene octylphenol ether, 2-5 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of surfactants and 30-60 parts of deionized water. The invention further discloses application of the stainless steel acid pickling accelerant. The stainless steel acid pickling accelerant is stable in performance, good in dispersibility, nontoxic, odorless, few in use amount, free of environment pollution, capable of effectively increasing the stainless steel acid pickling speed and capable of being widely applied to removing surface scales of silicon steel.

Description

Technical field: [0001] The invention relates to the field of metal surface treatment, in particular to a stainless steel pickling accelerator and its application. Background technique: [0002] After the surface of stainless steel is heat-preserved, a certain thickness of oxide scale composed of iron oxide, ferric oxide and ferrous oxide will be formed on the surface, which is very dense and needs to be pickled before cold rolling of stainless steel. Pickling is a commonly used surface treatment method. The commonly used acids for pickling include hydrochloric acid, nitric acid, sulfuric acid and hydrofluoric acid. Pickling accelerator. [0003] The pickling accelerator is mainly used to replace hydrofluoric acid in the pickling process of various stainless steels and carbon steels. It is used in conjunction with nitric acid to remove oil, rust, scale, corrosion, and fog. Oil derusting two-in-one, and at the same time promotes the removal of stubborn scale, especially the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08
Inventor 李晓明
Owner SUZHOU GAIDE FINE MATERIALS CO LTD
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