On-line low temperature electrolysis phosphating method for steel wires

An electrolytic phosphating and steel wire technology, applied in phosphating and other directions, can solve the problems of phosphate sediment polluting the environment, time-consuming and labor-intensive, affecting phosphating efficiency, etc., and achieving short phosphating treatment time, low consumption and small equipment volume. Effect

Inactive Publication Date: 2012-07-18
南通高罕金属设备科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, intermittent medium-temperature immersion phosphating is time-consuming and labor-intensive, and produces a

Method used

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specific Embodiment approach

[0021] A specific embodiment of the steel wire online low-temperature electrolytic phosphating method of the present invention comprises the following steps:

[0022] Specifically include the following steps:

[0023] A. Clean the surface of the heat-treated steel wire: wash off the scale on the surface of the steel wire by electrolytic acid method, and rinse the residual acid solution on the surface of the steel wire with water. The electrolytic acid method uses electrolytic acid solution, and the concentration of electrolytic acid solution is 8-12% sulfuric acid solution;

[0024] B. Conduct surface activation treatment on the steel wire; fully expose the steel wire base after the surface cleaning treatment to remove the surface scale, and react with dilute phosphoric acid solution with a concentration of 8-12%. After the action, the surface of the steel wire will generate polarized surface energy, and the steel wire and The action time of dilute phosphoric acid solution is...

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Abstract

The invention discloses an on-line low temperature electrolysis phosphating method for steel wires, which comprises the steps of paying off, intermediate-frequency induction heat treatment, water bath quenching, stabilizing treatment, steel wire surface scale treatment, activation, low temperature electrolysis phosphorization, passivation and taking up. The on-line low temperature electrolysis phosphating method for the steel wires has the advantages of being time-saving, labor-saving, green and environment-friendly, good in phosphating effect and short in phosphating time.

Description

technical field [0001] The invention relates to an online low-temperature electrolytic phosphating method for steel wire. Background technique [0002] At present, in the deep drawing processing industry of metal products, in order to obtain steel wires of certain specifications and strength levels, multiple processing procedures are required: put the high-carbon steel wire rods into the pickling pool, and use the chemical reaction between hydrochloric acid and the wire rods to remove the surface of the wire rods. After being washed by high pressure, it enters the phosphating tank, soaks in the phosphating solution at 70°C-80°C for 5-10 minutes, so that the surface of the wire does not have a layer of phosphate coating, and saponifies after washing with water, which is beneficial to the steel wire. Drawing, after drawing, it becomes a semi-finished product. Due to work hardening, it cannot be further drawn, so it needs to be subjected to austempering heat treatment. After th...

Claims

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Application Information

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IPC IPC(8): C25D11/36
Inventor 刘书宏吴怡岗
Owner 南通高罕金属设备科技有限公司
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