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Phosphating liquor of manganses series

A technology of manganese-based phosphating solution and phosphoric acid, applied in the field of surface chemistry, to achieve the effects of good stability, fine and uniform micropores in the film layer, and less sediment

Inactive Publication Date: 2007-10-31
宋晨玮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many domestic gear processing enterprises have not used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Manganese-based phosphating solution, its weight-to-number ratio is: phosphoric acid 2.0, Maziv salt 10, sodium nitrate 2, zinc nitrate 0.5, nickel nitrate 3.0, sodium nitrite 1, hydrogen peroxide 0.5, demineralized water 50, the unit is kilogram.

Embodiment 2

[0015] Manganese-based phosphating solution, its weight-to-number ratio is: phosphoric acid 3, Maziv salt 8, sodium nitrate 4, zinc nitrate 2, nickel nitrate 3.5, sodium nitrite 2, hydrogen peroxide 1, demineralized water 55, the unit is kilogram.

Embodiment 3

[0017] Manganese phosphating solution, the ratio of parts by weight is: 4 phosphoric acid, 7 Maziv salt, 5 sodium nitrate, 5 zinc nitrate, 4 nickel nitrate, 3 sodium nitrite, 3 hydrogen peroxide, 58 demineralized water, the unit is kilogram.

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PUM

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Abstract

The invention discloses a manganese series liquid phosphide in surface chemical technical domain, which comprises the following steps: allocating with mass ratio as 2. 0-8. 0 phosphoric acid, 1-10 horse sun husband salt, 2-8 sodium nitrate, 0. 5-5 zinc nitrate, 3. 0-5. 0 nickel nitrate, 1-4 sodium nitrite, 0. 5-6 hydrogen dioxide solution and 45-60 softened water; getting the product. This invention can improve wear resistance and prolong durability of gear.

Description

Technical field: [0001] The invention belongs to the technical field of surface chemistry, and particularly relates to a manganese-based phosphating solution for phosphating the surface of a running-in part of steel. Background technique [0002] Manganese phosphating solution is used for phosphating treatment of steel. The method of chemically treating steel in a phosphate solution containing manganese and zinc to form a phosphate protective film that is insoluble in water on the metal surface is called metal phosphate treatment, or manganese phosphating for short. Manganese phosphating solution is used for phosphating treatment of steel. It is firmly combined with the substrate, and has good adsorption, lubricity, corrosion resistance and high electrical insulation. In a short period of time, a uniform and dense manganese-based fine-grained phosphating film can be obtained on the metal surface. The manganese-based phosphating solution has been widely used in aircraft, au...

Claims

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Application Information

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IPC IPC(8): C23C22/13
Inventor 宋晨玮
Owner 宋晨玮
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