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Volatility-resistant Sr and Mn containing covering aluminum alloy for steel wire lead bath

An aluminum alloy and steel wire technology, applied in the field of alloys, can solve problems such as the unsatisfactory sealing effect of the covering agent, the limitation of the application and promotion of lead bath heat treatment, and the inability to fully meet the requirements of the industry. Excellent resistance to volatilization and oxidation

Inactive Publication Date: 2018-07-27
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unsatisfactory sealing effect of the covering agent, the application and promotion of lead bath heat treatment are greatly restricted
Generally speaking, the above-mentioned methods have their own shortcomings and cannot fully meet the existing industry requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A volatile resistant Sr and Mn covered aluminum alloy using a steel wire lead bath at 490°C. In terms of weight percentage, the chemical composition of the alloy is: Sr: 0.6wt.%, Mn: 1.2wt.%, Sb: 0.9wt.%, Si: 3.5wt.%, Y: 1.0wt.%, Eu: 0.3wt .%, the balance is aluminum. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 720 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 720°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot, and the ingot moves down at a speed of 6m / min. The ingot can be used as a lead bath raw material for the lead bath heat treatment in the subsequent process to perform troostite operation on the steel cord.

[0019] The aluminum al...

Embodiment 2

[0021]A volatile-resistant Sr and Mn-coated aluminum alloy using a steel wire lead bath at 520°C. By weight percentage. In terms of weight percentage, the chemical composition of the alloy is: Sr: 0.5wt.%, Mn: 1.2wt.%, Sb: 0.9wt.%, Si: 3.8wt.%, Y: 1.0wt.%, Eu: 0.3wt .%, the balance is aluminum. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 740 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 740°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot, and the ingot moves down at a speed of 8m / min. The ingot can be used as a lead bath raw material for the lead bath heat treatment in the subsequent process to perform troostite operation on the steel cord.

[...

Embodiment 3

[0024] A volatile resistant Sr and Mn covered aluminum alloy using a steel wire lead bath at 540°C. By weight percentage. In terms of weight percentage, the chemical composition of the alloy is: Sr: 0.8wt.%, Mn: 1.4wt.%, Sb: 1.2wt.%, Si: 4.2wt.%, Y: 1.2wt.%, Eu: 0.3wt .%, the balance is aluminum. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 780 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 780 degrees for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot, and the ingot moves down at a speed of 8m / min. The ingot can be used as a lead bath raw material for the lead bath heat treatment in the subsequent process to perform troostite operation on the steel co...

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PUM

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Abstract

The invention discloses a volatility-resistant Sr and Mn containing covering aluminum alloy for a steel wire lead bath and a processing technology thereof. The volatility-resistant Sr and Mn containing covering aluminum alloy is prepared from the following components in percentage by weight: 0.5-0.8wt.% of Sr, 1.0-1.5wt.% of Mn, 0.8-1.4wt.% of Sb, 3.0-5.0wt.% of Si, 1.0-1.2wt.% of Y, 0.2-0.4wt.% of Eu and the balance of aluminum. The problem in applications of a lead bath thermal treatment process is solved by researching an aluminum-strontium alloy, the degree of lead pollution hazards can bereduced effectively, and the lead fume and lead dust concentration is controlled with a corresponding standard prescriptive index.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to an aluminum-strontium alloy. Background technique [0002] After the steel is austenitized, it enters the molten lead for quenching and cooling to complete the process of microstructure transformation, and the final microstructure is fine pearlite. The principle is to allow supercooled austenite to undergo isothermal transformation in molten lead at about 600°C according to the isothermal transformation curve of steel to produce a fine pearlite structure (sorbite) suitable for deep drawing. The characteristics of high heat capacity and thermal shock resistance of liquid lead are easy to realize the isothermal transformation of steel wire. This is a common process in the wire manufacturing process of medium carbon steel and high carbon steel, in order to obtain proper organization for easy drawing and high quality. This technology plays an important role in improving the fatigue ...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02C21D1/56
CPCC22C21/02C21D1/56C22C1/026
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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