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Energy-saving environment-friendly steel cord hot-dip coating copper-zinc alloy and thermal treatment production process thereof

An energy-saving, environment-friendly and production process technology, which is applied in the field of energy-saving and environment-friendly steel cord hot-dip copper-zinc alloy and its heat treatment production process, can solve problems such as decline, achieve the effects of saving water resources, eliminating the washing process, and solving lead pollution

Inactive Publication Date: 2012-07-04
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to propose an energy-saving and environment-friendly steel cord hot-dip copper-zinc alloy and its heat treatment production process, which can shorten the length of the current production line by 30% to 50%, and produce There are no environmental pollution problems such as waste gas and sewage discharge containing heavy metal ions in the process, energy consumption is reduced, and production costs are reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] An energy-saving and environment-friendly steel cord hot-dip copper-zinc alloy and its heat treatment production process, including the following steps: electrolytic degreasing→water washing→coating flux coating→drying→hot-dip copper and austenitization→hot-dip galvanizing And isothermal treatment→diffusion annealing.

[0013] The process temperature of hot-dip copper and austenitization is 1120°C±10°C, the temperature of hot-dip galvanizing and isothermal treatment is 570°C±10°C, select the appropriate steel cord bathing angle, and change the thickness ratio of copper and zinc layers to achieve After diffusion annealing, the mass percentage of zinc in the copper-zinc alloy coating is adjusted between 30% and 37%, so as to meet the component requirements of different products for the copper-zinc alloy coating of steel cords.

[0014] The interface between the copper-zinc alloy coating of the steel cord manufactured by the above process and the base steel wire has excell...

Embodiment 2

[0016] An energy-saving and environment-friendly steel cord hot-dip copper-zinc alloy and its heat treatment production process, including the following steps: electrolytic degreasing→water washing→coating flux coating→drying→hot-dip copper and austenitization→hot-dip galvanizing And isothermal treatment→diffusion annealing.

[0017] The process temperature of hot-dip copper and austenitization is 1120°C±10°C, the temperature of hot-dip galvanizing and isothermal treatment is 580°C±10°C, select the appropriate steel cord bathing angle, and change the thickness ratio of copper and zinc layers to achieve After diffusion annealing, the mass percentage of zinc in the copper-zinc alloy coating is adjusted between 30% and 37%, so as to meet the component requirements of different products for the copper-zinc alloy coating of steel cords.

[0018] The interface between the copper-zinc alloy coating of the steel cord manufactured by the above process and the base steel wire has excell...

Embodiment 3

[0020] An environmentally friendly and energy-saving steel cord hot-dip copper-zinc alloy and heat treatment production process, including the following steps: electrolytic degreasing→water washing→coating fluxing agent→drying→hot-dip copper and austenitization→hot-dip galvanizing and Isothermal treatment → diffusion annealing.

[0021] The process temperature of hot-dip copper and austenitization is 1120°C±10°C, the temperature of hot-dip galvanizing and isothermal treatment is 590°C±10°C, select the appropriate steel cord bathing angle, and change the thickness ratio of copper and zinc layers to achieve After diffusion annealing, the mass percentage of zinc in the copper-zinc alloy coating is adjusted between 30% and 37%, so as to meet the component requirements of different products for the copper-zinc alloy coating of steel cords.

[0022] The interface between the copper-zinc alloy coating of the steel cord manufactured by the above process and the base steel wire has exc...

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Abstract

The invention provides an energy-saving environment-friendly steel cord hot-dip coating copper-zinc alloy layer and a thermal treatment production process thereof in the process of steel cord production. The process comprises electrolytic degrading, washing, coating an assistant coating agent, drying, coating copper in hot-dip mode and austenitizing, coating zinc in hot-dip mode and isothermal treatment and diffusion annealing. The temperature for the process of coating the copper in hot-dip mode and austenitizing ranges from 1100 DEG C to 1140 DEG C, and the temperature for the process of coating the zinc in hot-dip mode and diffusion annealing ranges from 550 DEG C to 600 DEG C. After diffusion annealing, mass percentage of zinc in the copper-zinc alloy coating layer ranges from 30%-37%. The production process respectively utilizes the two procedures of coating the copper in hot-dip mode and austenitizing and coating the zinc in hot-dip mode and isothermal treatment to replace four procedures of austenitizing, copper coating, isothermal treatment and zinc coating, solves the problems of heavy metal iron sewage discharging, waste gas exhaust during austenitizing heating and lead and powder pollution during isothermal treatment in the existing production process, and has the advantages of being good in environment protection performance, high in production efficiency and low in production cost.

Description

technical field [0001] The invention relates to an on-line hot-dip copper-zinc alloy production technology for steel cords in the production process of steel cords, and specifically relates to an energy-saving and environment-friendly steel cord hot-dip copper-zinc alloy production process and a heat treatment production process thereof. Background technique [0002] There is usually a layer of copper-zinc alloy coating with a certain thickness on the surface of the steel cord to improve the bonding force between the steel cord and the rubber. At present, the industrial production of steel cords with a certain thickness of copper-zinc alloy coating, the production process includes two relatively independent parts of steel cord heat treatment and surface copper-zinc alloy coating preparation, steel cord heat treatment mainly includes heating austenitization and isothermal There are two heat treatment processes, and the preparation of the surface copper-zinc alloy coating main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F17/00
Inventor 方信贤赵秀明王章忠
Owner NANJING INST OF TECH
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