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Automobile heat forming steel non-spangle hot dipping Ca-Hf-Re zinc-aluminum alloy

A technology for hot forming steel and zinc-aluminum alloy, applied in the field of alloys, can solve the problems of ineffective environmental protection measures, high production cost, large energy consumption, etc., and achieve the effects of good corrosion resistance, low cost and convenient operation.

Inactive Publication Date: 2018-08-24
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing hot-dip galvanizing production lines have shortcomings such as backward technology, high zinc consumption, low product output, poor product quality, high production cost, high energy consumption, weak environmental protection measures, and often cause serious environmental pollution. Such production lines are difficult to meet the needs of Chinese nationals. economic take-off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A zinc-aluminum alloy containing Ca-Hf-Re is hot-dip-coated with spangle-free hot-formed steel for automobiles at 320-340 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.3wt.%, Na: 0.1wt.%, Re: 0.2wt.%, Ge: 1.0wt.%, Al: 35.0wt.%, Hf: 0.2wt .%, the balance is zinc. Alloy preparation method: Add the above-mentioned raw materials into an induction furnace protected by argon gas, and use a silicon carbide crucible; add the above-mentioned raw materials into an atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating Form the alloy solution at 500-600 degrees, and use the electromagnetic stirring effect to fully stir for about 10 minutes; keep the alloy liquid at 500-600 degrees for 10 minutes, then cast it into the same level equipment as the hot top for semi-continuous casting into the required For round ingots, the ingot moving speed is 5-8m / min. The cast ingot can be used as hot-dip galvanizin...

Embodiment 2

[0020]A zinc-aluminum alloy containing Ca-Hf-Re is hot-dip-coated with spangle-free hot-formed steel for automobiles at 320-340 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.5wt.%, Na: 0.2wt.%, Re: 0.3wt.%, Ge: 1.5wt.%, Al: 42.0wt.%, Hf: 0.5wt .%, the balance is zinc. Alloy preparation method: Add the above-mentioned raw materials into an induction furnace protected by argon gas, and use a silicon carbide crucible; add the above-mentioned raw materials into an atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating Form the alloy solution at 500-600 degrees, and use the electromagnetic stirring effect to fully stir for about 10 minutes; keep the alloy liquid at 500-600 degrees for 10 minutes, then cast it into the same level equipment as the hot top for semi-continuous casting into the required For round ingots, the ingot moving speed is 5-8m / min. The cast ingot can be used as hot-dip galvanizing...

Embodiment 3

[0023] A zinc-aluminum alloy containing Ca-Hf-Re is hot-dip-coated with spangle-free hot-formed steel for automobiles at 320-340 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.4wt.%, Na: 0.1wt.%, Re: 0.2wt.%, Ge: 1.2wt.%, Al: 38.0wt.%, Hf: 0.3wt .%, the balance is zinc. Alloy preparation method: Add the above-mentioned raw materials into an induction furnace protected by argon gas, and use a silicon carbide crucible; add the above-mentioned raw materials into an atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating Form the alloy solution at 500-600 degrees, and use the electromagnetic stirring effect to fully stir for about 10 minutes; keep the alloy liquid at 500-600 degrees for 10 minutes and then cast it into the same level equipment as the hot top for semi-continuous casting. For round ingots, the ingot moving speed is 5-8m / min. The cast ingot can be used as a hot-dip galvanizing raw materi...

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Abstract

The invention discloses an automobile heat forming steel non-spangle hot dipping Ca-Hf-Re zinc-aluminum alloy and a preparing technology thereof. The alloy comprises, by weight, 0.3%-0.5% of Ca, 0.1%-0.2% of Na, 0.2%-0.3% of Re, 1.0%-1.5% of Ge, 35.0%-42.0% of Al, 0.2%-0.5% of Hf and the balance zinc. The material can be applied to steel plate hot-dip galvanizing at the temperature ranging from 320 DEG C-340 DEG C; and compared with traditional pure zinc hot dipping, the better decay resistance is achieved. The alloy is of decisive significance in the antiseptic property of heat forming steelfor an automobile, and plays an important role in light weight of the automobile and energy conservation, environment protection and emission reduction.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc alloy. Background technique [0002] Hot forming steel plate technology means that the steel plate is formed once after being heated at a high temperature of 950 degrees, and then cooled rapidly to comprehensively improve the strength of the steel plate. The yield is as high as 1000Mpa, and each square centimeter can withstand more than 10 tons of pressure. When this material is used on the body, the bearing capacity is increased by 30% without much change in the weight of the body. The rigidity of the car has reached a new level, and it has reached the five-star standard in the European crash test. Ultra-high-strength and high-strength body materials with extremely high mechanical safety. The hot-formed steel plate is mainly used in front and rear bumper frames, A-pillars, B-pillars and other key parts. In the event of impact, especially in frontal and side impacts, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/04C22C1/02C23C2/06C23C2/40
CPCC22C18/04C22C1/02C23C2/06C23C2/40
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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