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Normal-temperature phosphating fluid for drawing steel

A phosphating, room temperature technology, applied in the field of phosphating treatment liquid, can solve the problems of long phosphating time, high energy consumption of high-temperature phosphating liquid, easy to remove film, etc., and achieves fast phosphating speed, less sediment and uniform color. Effect

Active Publication Date: 2015-10-21
武汉金瑞欣精密工业设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a phosphating solution for steel drawing at room temperature, so as to solve the technical problems of high-temperature phosphating solution in the prior art, such as large energy consumption, easy stripping, and long phosphating time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Prepare the following components: 1 g of sodium nitrate, 1 g of potassium nitrate, 1 g of nitroguanidine, 2.88 g of sodium molybdate, 58 g of ammonium phosphate, 0.3 g of sodium nitrobenzenesulfonate and 0.1 g of hydroxylamine sulfate. Add the prepared sodium nitrate, potassium nitrate, nitroguanidine, sodium molybdate, ammonium phosphate, sodium nitrobenzenesulfonate and hydroxylammonium sulfate into deionized water and stir evenly, and set the volume to 1L to make a steel drawing room temperature phosphorus chemical treatment fluid. At normal temperature, the steel is treated with a normal temperature phosphating solution to form a phosphating film.

[0011] Phosphate film test: using CuSO 4 The spot method carries out corrosion resistance test to the phosphating film formed by the steel after the present invention treatment: drop a drop of CuSO on the surface of the phosphating film 4 , the standard is prepared according to the method described in GB / 680...

Embodiment 2

[0012] Example 2: The following components were prepared: 0.8 g of sodium nitrate, 0.1 g of potassium nitrate, 0.5 g of nitroguanidine, 2.9 g of sodium molybdate, 47 g of ammonium phosphate, 0.8 g of sodium nitrobenzenesulfonate and 0.27 g of hydroxylamine sulfate. Add the prepared sodium nitrate, potassium nitrate, nitroguanidine, sodium molybdate, ammonium phosphate, sodium nitrobenzenesulfonate and hydroxylammonium sulfate into deionized water and stir evenly, and set the volume to 1L to make a steel drawing room temperature phosphorus chemical treatment fluid. At normal temperature, the steel is treated with a normal temperature phosphating solution to form a phosphating film.

[0013] Phosphate film test: using CuSO 4 The spot method carries out corrosion resistance test to the phosphating film formed by the steel after the present invention treatment: drop a drop of CuSO on the surface of the phosphating film 4 , the standard is prepared according to the method describ...

Embodiment 3

[0014] Example 3: Prepare the following ingredients: 1.2g of sodium nitrate, 0.3g of potassium nitrate, 1g of nitroguanidine, 2.9g of sodium molybdate, 33g of ammonium phosphate, 0.2g of accelerator sodium nitrobenzenesulfonate and 0.067g of hydroxylamine sulfate. Add the prepared sodium nitrate, potassium nitrate, nitroguanidine, sodium molybdate, ammonium phosphate, sodium nitrobenzenesulfonate and hydroxylammonium sulfate into deionized water and stir evenly, and set the volume to 1L to make a steel drawing room temperature phosphorus chemical treatment fluid. At normal temperature, the steel is treated with a normal temperature phosphating solution to form a phosphating film.

[0015] Phosphate film test: using CuSO 4 The spot method carries out corrosion resistance test to the phosphating film formed by the steel after the present invention treatment: drop a drop of CuSO on the surface of the phosphating film 4 , the standard is prepared according to the method describe...

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Abstract

The invention discloses a normal-temperature phosphating fluid for drawing steel. The liquid is prepared by nitrate, nitrite, nitroguanidine, molybdate, phosphate, an accelerant and deionized water. The liquid can be used for performing normal-temperature phosphating on the steel for drawing, and can reach a same effect under a relatively-high-temperature phosphating; under the normal temperature, after 3 to 5 minutes, a layer of black, even and compact phosphating film can be formed on the surface of the steel, and the corrosion resistance is tested to be above the national standard. The problems of large high-temperature phosphating liquid consumption, high possibility in stripping, long phosphating time and the like are solved.

Description

technical field [0001] The invention relates to a phosphating treatment solution, in particular to a normal temperature phosphating treatment solution for steel drawing. Background technique [0002] In the process of steel drawing, phosphating treatment must be carried out on the surface of the steel first, and the steel after phosphating has a better lubricating effect. However, this phosphating treatment process can only meet the drawing requirements under the condition of 70°C-90°C, and the production energy consumption is high. The existing room temperature phosphating treatment solution can carry out phosphating treatment at room temperature, but it cannot guarantee that the steel material will not be stripped after phosphating, because there are many phosphorous slags and the phosphating speed is not high enough. The steel drawing room temperature phosphating treatment liquid of the present invention can carry out phosphating and drawing of the steel under normal tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/05
Inventor 饶哲斌
Owner 武汉金瑞欣精密工业设备有限公司
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