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High tin bronze plating solution for chemical plating of surface of tempered bead wire, and its chemical dip plating method

A technology of tempering bead and surface chemistry, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problems of difficult to control the tin content of the coating, low enthusiasm for the production of high tin products, etc. Low, easy to control, the effect of reducing maintenance costs

Inactive Publication Date: 2014-07-16
JIANGSU XINGDA STEEL TYPE CORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to control the tin content of the plating layer by electroless plating, especially for high-tin bronze plating. Therefore, at present, domestic bead wire manufacturers mainly produce low-tin bead wire, and are not enthusiastic about the production of high-tin products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare copper sulfate pentahydrate, stannous sulfate, stabilizer, and complexing agent according to the composition in Table 1 and deionized water to prepare 5 L of plating solution in the plating tank, and the working temperature of the plating solution is controlled within the range of 40±2°C;

[0027] Table 1 Plating solution ratio

[0028] Copper Sulfate Pentahydrate stannous sulfate 98% concentrated sulfuric acid citric acid 20g / L 1.2g / L 20g / L 4g / L

[0029] The Φ0.95 mmHT tempered bead steel wire is pickled and washed with water, and then enters the plating tank, and runs at a line speed of 300 m / min. The steel wire is completely immersed in the plating solution, and the plating time is 2s;

[0030] After plating, the bead wire is rinsed with deionized water at 80° C. and dried at 160° C. after coming out of the plating tank. According to the industry standard method to analyze the coating on the surface of the steel wire, the tin co...

Embodiment 2

[0032] Prepare copper sulfate pentahydrate, stannous sulfate, stabilizer, and complexing agent according to the composition in Table 2 and deionized water to prepare 5 L of plating solution in the plating tank. The working temperature of the plating solution is controlled within the range of 40±2°C;

[0033] Table 2 Plating solution ratio

[0034] Copper Sulfate Pentahydrate stannous sulfate 98% concentrated sulfuric acid Thiourea + oxalic acid 25g / L 1.0g / L 25g / L 2g / L

[0035] The tempered bead steel wire of Φ1.30 mmHT is pickled and washed with water, then enters the plating tank, runs at a line speed of 200 m / min, the steel wire is completely immersed in the plating solution, and the plating time is 3s;

[0036] After plating, the bead wire is rinsed with deionized water at 80° C. and dried at 160° C. after coming out of the plating tank. According to the industry standard method to analyze the coating on the surface of the steel wire, the tin ...

Embodiment 3

[0038] Prepare copper sulfate pentahydrate, stannous sulfate, stabilizer, and complexing agent according to the composition in Table 3 and deionized water to prepare 5 L of plating solution in the plating tank, and the working temperature of the plating solution is controlled within the range of 35±2°C;

[0039] Table 3 Plating solution ratio

[0040] Copper Sulfate Pentahydrate stannous sulfate 98% concentrated sulfuric acid Thiourea + tartaric acid + ascorbic acid 25g / L 1.5g / L 40g / L 2g / L

[0041] The Φ1.65 mmHT tempered bead steel wire is pickled and washed with water, then enters the plating tank, runs at a line speed of 180 m / min, the steel wire is completely immersed in the plating solution, and the plating time is 3.4s;

[0042] After the plated bead wire comes out of the plating tank, it is washed with deionized water at 80°C and dried at 160°C. According to the industry standard method, the surface coating of the steel wire was analyzed, ...

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Abstract

The invention discloses a high tin bronze plating solution for chemical plating of the surface of a tempered bead wire, and its chemical dip plating method. The plating solution comprises a main salt, a stabilizer with the concentration of 15-65g / L, a complexing agent with the concentration of 0.01-10g / L, and a solvent. The chemical dip plating solution is prepared by using the above components according to the proportions of the components, and after the tempered bead wire is plated through the chemical dip plating method, the method allows the thickness of a chemical plated high tin bronze layer of the tempered bead wire to be controlled in a range of 1.2-2.5mum, a mass ratio of the plated layer to the tempered bead wire to be stably controlled in a range of 0.15-0.80g / kg and the tin content of the plated layer to reach 8-12%. The method has the advantages of no electoplating, simple operation, easy control and low cost, and the plating solution has the advantages of certain oxidation resistance, unlikely turbidity, no acid mist, reduction of the maintenance cost, and good plating effect.

Description

technical field [0001] The invention relates to a method for controlling the tin content and weight of the coating in the chemical displacement bronze plating technology, in particular to a method for stably controlling the composition ratio of the plating solution with a tin content of 8-12% in the tempered bead steel wire coating, and its application in Application of Φ0.90-1.80 mmHT tempered bead wire in electroless high-tin bronze plating. Background technique [0002] Bead wire is a high-carbon steel wire coated with uniform red copper, brass or bronze on the surface. It has high strength, good toughness, excellent fatigue performance and good linearity. It has strong adhesion to rubber and is mainly used It is widely used in tire production as a reinforcing frame material at the edge of the tire. Since the end of the "Ninth Five-Year Plan", the ISO / TC17 / SC17 project of the International Organization for Standardization requires that the surface coating of the bead wir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/48
Inventor 刘锦兰姚利丽华欣倪自飞邓伟王万林董小帅
Owner JIANGSU XINGDA STEEL TYPE CORD
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