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Passivation liquid

A passivation treatment and material technology, applied in the direction of metal material coating process, etc., can solve the problems of etching, poor cooling effect, etc., achieve long life, good promotion and use value, and improve the effect of treatment

Inactive Publication Date: 2018-04-20
蚌埠市华鼎机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The spray device is the fluid spray device of the lead ingot cold granulator, which mainly plays the role of cooling and lubricating the hob, surface and square hole, and prevents the hole of the hob from being blocked or blocked by lead. The nozzle is an essential part of the spray device. One of the parts is mostly made of stainless steel, and the surface is mostly coated with zinc or magnesium coating. Although it can play a certain role in anti-corrosion and anti-rust, it will still be etched after a large amount of use, resulting in poor cooling effect, etc. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of passivation treatment liquid, is made up of the material of following parts by weight:

[0017] 15 parts of molybdate, 8 parts of tungstate, 3 parts of phytic acid, 2 parts of tartaric acid, 1 part of titanate coupling agent, 5 parts of polyvinyl alcohol, 2 parts of sodium fluoroborate, 0.5 parts of benzotriazole, 1 part acrylic acid, 900 parts water.

[0018] The passivation treatment solution of the present invention can form a passivation film with uniform and stable quality on the surface of the galvanized stainless steel, and the white rust time exceeds 120 hours through a neutral salt spray test.

Embodiment 2

[0020] A kind of passivation treatment liquid, is made up of the material of following parts by weight:

[0021] 18 parts of molybdate, 10 parts of tungstate, 6 parts of phytic acid, 5 parts of tartaric acid, 4 parts of titanate coupling agent, 7 parts of polyvinyl alcohol, 4 parts of sodium fluoroborate, 1.5 parts of benzotriazole, 2 parts acrylic acid, 1000 parts water.

[0022] The passivation treatment solution of the present invention can form a passivation film with uniform and stable quality on the surface of the stainless steel after magnesium plating, and the white rust time exceeds 116 hours through a neutral salt spray test.

Embodiment 3

[0024] A kind of passivation treatment liquid, is made up of the material of following parts by weight:

[0025] 16 parts of molybdate, 9 parts of tungstate, 5 parts of phytic acid, 4 parts of tartaric acid, 3 parts of titanate coupling agent, 6 parts of polyvinyl alcohol, 3 parts of sodium fluoroborate, 1 part of benzotriazole, 1.5 parts acrylic acid, 950 parts water.

[0026] The passivation treatment solution of the present invention can form a passivation film with uniform and stable quality on the surface of stainless steel, and the white rust time exceeds 108 hours through a neutral salt spray test.

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PUM

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Abstract

The invention discloses passivation liquid. The passivation liquid consists of the following substances: molybdate, tungstate, phytic acid, tartaric acid, a titanate coupling agent, polyvinyl alcohol,sodium fluoborate, benzotriazole, acrylic acid and water. The passivation liquid is reasonable in ratio of the components, can preferably improve the passivation effect, and enables stainless steel workpieces to achieve better use quality, longer life and excellent popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a passivation treatment liquid. Background technique [0002] With the rapid development of the electric vehicle industry in recent years, the development of the lead-acid battery industry has also advanced by leaps and bounds. Lead, as an essential raw material for the production of lead-acid batteries, has greatly increased its market demand; The link that must be experienced, the traditional lead pellet manufacturing is to melt the lead ingot in the lead melting furnace, and then flow the lead liquid into the lead pellet casting machine to cool or cast it into a rod shape and then cut it off. At present, the domestic lead-acid battery industry mostly uses the Shimadzu method In the production of lead powder, it is necessary to cast electrolytic lead into lead balls or lead segments, and then use a ball mill to grind it into lead powder. Due to the i...

Claims

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Application Information

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IPC IPC(8): C23C22/44
CPCC23C22/44
Inventor 余华乔
Owner 蚌埠市华鼎机械科技有限公司
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