Rust-removing phosphating solution for wire rod drawing, and preparation method thereof

A phosphating liquid and wire technology, applied in the direction of metal material coating process, etc., can solve the problems of phosphating agent containing highly corrosive components, phosphating film is not strong enough, high cost of wastewater treatment, to achieve high thermodynamics, improve hardness , the effect of low production cost

Active Publication Date: 2018-05-18
鞍山晨雷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of separating wire pickling and phosphating treatment processes, resulting in high cost of wastewater treatment caused by water washing, phosphating film is not strong enough, breakage occurs when drawing, and phosphating agent contains highly corrosive components problem, provides a kind of rust removal phosphating solution for wire drawing and its preparation method

Method used

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  • Rust-removing phosphating solution for wire rod drawing, and preparation method thereof
  • Rust-removing phosphating solution for wire rod drawing, and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] A rust-removing phosphating solution for wire drawing, consisting of the following chemical components in mass percent:

[0037] Phosphoric acid 50%, nitric acid 1%, zinc oxide 5%, zinc dihydrogen phosphate 2%, zinc nitrate, nickel nitrate and ferrous nitrate 5%, manganese carbonate 2.5%, sodium fluoride 1.5%, citric acid 1.5%, perfluorinated Potassium octanesulfonate YF-95: 0.05%, water: 31.45%;

[0038] Wherein, the molar ratio of zinc nitrate, nickel nitrate and ferrous nitrate is 100:7:25.

[0039] At room temperature, take materials according to the above chemical composition distribution ratio, add zinc oxide, nitrate, manganese carbonate and complexing agent into water, stir until completely dissolved, then add dihydrogen phosphate, phosphoric acid, nitric acid and fluorine-containing surfactant , after fully stirring evenly, the product of rust removal and phosphating solution is obtained.

[0040] Place the workpiece to be treated in a 4-fold diluted rust rem...

Embodiment 2

[0042] A rust-removing phosphating solution for wire drawing, consisting of the following chemical components in mass percent:

[0043] Phosphoric acid 20%, nitric acid 10%, zinc oxide 10%, manganese dihydrogen phosphate 10%, zinc nitrate, nickel nitrate and ferrous nitrate 1%, manganese carbonate 0.5%, sodium fluoride 0.1%, tartaric acid 0.1%, perfluorooctyl quaternary ammonium iodide YF-134: 1%, water: 47.3%;

[0044] Wherein, the molar ratio of zinc nitrate, nickel nitrate and ferrous nitrate is 100:12:15.

[0045] At room temperature, take materials according to the above chemical composition ratio, add zinc oxide, nitrate, manganese carbonate and complexing agent into water, stir until completely dissolved, then add phosphoric acid, nitric acid, dihydrogen phosphate and fluorine-containing surfactant , after fully stirring evenly, the product of rust removal and phosphating solution is obtained.

[0046] Place the workpiece to be treated in a 4-fold diluted rust-removin...

Embodiment 3

[0048] A rust-removing phosphating solution for wire drawing, consisting of the following chemical components in mass percent:

[0049] Phosphoric acid 30%, nitric acid 5%, zinc oxide 1%, manganese dihydrogen phosphate 2.5%, zinc dihydrogen phosphate 2.5%, zinc nitrate, nickel nitrate and ferrous nitrate 10%, manganese carbonate 5%, alanine 3%, Citric acid 2%, YF-001 fluorocarbon high-efficiency leveling agent 0.5%, water: 38.5%;

[0050] Wherein, the molar ratio of zinc nitrate, nickel nitrate and ferrous nitrate is 10:1:2.

[0051] At room temperature, take materials according to the above chemical composition ratio, add zinc oxide, dihydrogen phosphate, nitrate, manganese carbonate and complexing agent into water, stir until completely dissolved, then add phosphoric acid, nitric acid and fluorine-containing surfactant , after fully stirring evenly, the product of rust removal and phosphating solution is obtained.

[0052]Place the workpiece to be treated in a 4-fold dilut...

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Abstract

The invention aims to solve the problems that wire rod pickling and phosphating procedures are implemented separately, resulting high treatment cost of waste water generated by washing, phosphating films are not secure enough, the fracture phenomenon occurs during drawing, and the content of corrosive components in phosphating agents is high. The invention provides a rust-removing phosphating solution for wire rod drawing, and a preparation method thereof, and belongs to the technical field of rust removal and phosphating treatment of metal surfaces. The rust-removing phosphating solution forthe wire rod drawing comprises, by mass, 20%-50% of concentrated phosphoric acid, 1%-10% of concentrated nitric acid, 1%-10% of zinc oxide, 2%-10% of dihydric phosphate, 1%-10% of nitrate, 0.5%-5% ofmanganese carbonate, 0.2%-5% of complexing agents, 0.05%-1% of fluorine-containing surfactants and the balance water. After treatment by the rust-removing phosphating solution provided by the invention, a gray-black uniform and dense phosphating film is formed on the surfaces of steel wires and welded steel tubes, and has better lubrication effects in the drawing and cold working process.

Description

technical field [0001] The invention belongs to the technical field of rust-removing and phosphating treatment on metal surfaces, and in particular relates to a rust-removing and phosphating solution for wire drawing and a preparation method thereof. Background technique [0002] Due to the existence of iron scale on the surface of the wire rod during production and storage, it seriously affects the subsequent drawing of the wire rod and the surface quality of the product. Therefore, pickling and phosphating are essential and important processes in the production of wire rods. The so-called phosphating is a process of forming a phosphate chemical conversion film on the metal surface through chemical and electrochemical reactions. The formed phosphating film plays a role of anti-friction and lubrication in the subsequent drawing process, and also improves the resistance of the wire. Oxidation properties and anti-corrosion properties. Most of the existing wire phosphating tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/18C23C22/36C23G1/08
CPCC23C22/184C23C22/365C23G1/085C23G1/088
Inventor 徐红波吴勇奇陈雷尚雪薇
Owner 鞍山晨雷科技有限公司
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