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Low temperature rapid phosphorization liquid for drawing wire and phosphorization process

A phosphating liquid, low temperature technology, applied in the direction of metal material coating process, etc., can solve the problem of poor surface lubrication in the welding area, and achieve the effect of good effect, low phosphating temperature and simple operation.

Inactive Publication Date: 2005-09-07
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defect of poor surface lubrication of the welding zone after the high-carbon wire rod butt welding operation in the prior art, the present invention provides a low-temperature rapid phosphating solution for wire drawing and a phosphating process suitable for large-scale production

Method used

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  • Low temperature rapid phosphorization liquid for drawing wire and phosphorization process

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Embodiment 1

[0023] A low-temperature rapid phosphating solution for wire drawing in the metal product industry, including Zn(H 2 PO4) 2 , Zn(NO 3 ) 2 、H 3 PO 4 and H 2 O, its mass proportion is: (60~100): (15~40): (8~50): (808~912), in the present embodiment, its mass proportion can select following any one, 60 :15:50:808, 100:40:8:912, 72:28:34:846, 85:30:41:862, 90:35:45:900.

Embodiment 2

[0025] A low-temperature rapid phosphating solution for wire drawing in the metal product industry, including Zn(H 2 PO4) 2 , Zn(NO 3 ) 2 、H 3 PO 4 and H 2 O, its mass proportion is: (60~100): (15~40): (8~50): (808~912), present embodiment also includes NiNO 3 , Zn(H 2 PO 4 ) 2 with NiNO 3 The mass ratio is: (60 ~ 100): (0.5 ~ 1.0), the above-mentioned Zn (H 2 PO4) 2 , Zn(NO 3 ) 2 、H 3 PO 4 、H 2 O and NiNO 3 The mass ratio can choose any of the following, 60:15:8:808:0.5, 100:40:50:912:1, 75:20:35:850:0.45, 83:33:45:860:0.28 , 95:37:43:890:0.18.

Embodiment 3

[0027] A low-temperature rapid phosphating solution for wire drawing in the metal product industry, composed of Zn(H 2 PO4) 2 , Zn(NO 3 ) 2 、H 3 PO 4 、NiNO 3 , La(NO 3 ) 3 and H 2 O composition, its mass ratio is: (60~100): (15~40): (8~50): (0.5~1.0): (0.5~1.0): (808~912), in this embodiment , its mass ratio can choose any one of the following, 60:15:8:0.5:0.5:808, 100:40:50:1.0:1.0:912, 66:22:30:0.6:0.7:840, 88: 37:43:0.7:0.65:870, 94:34:46:0.82:0.91:905.

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Abstract

The invention discloses a low-temperature rapidly phosphatising liquid in wiredrawing of metallic production trade, which comprises Zn (H2PO4), Zn (NO3)2, H3PO4 and H2O, wherein the mass ratio is: (60-100):(15-40):(8-50):(808-912). The phosphatising art is: rubbing out the oxide skin in the surface of the welding point of the rod bundle through the fine grinding wheel, sanding it again, spraying said liquid evenly on the welding surface, weathering the remaining liquid and repeating again.

Description

technical field [0001] The invention relates to a low-temperature rapid phosphating solution and a phosphating process for surface drawing of steel wire rods in the metal product industry. Background technique [0002] Due to its deformability, zinc-based phosphating film is often used for surface lubrication treatment during machining. Traditionally, it is generally prepared by medium-high temperature soaking process, and the phosphating film formed is thicker (5-15g / m2) and denser, and has better lubricating properties. [0003] As a new generation of building materials, prestressed (PC) steel strands for high-strength concrete are widely used in modern buildings such as high-rise buildings and long-span bridges. Its general production process is that the cold-controlled hot-rolled high-carbon wire rod is processed by high-temperature surface phosphating, then continuous multi-pass wire drawing production, and then twisted and stabilized. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/07C23C22/78
Inventor 蒋建清方峰于金董岩顾菡妍曹文奎
Owner SOUTHEAST UNIV
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