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Sc and Hf-contained iron alloy for hot-dip galvanizing anti-vibration iron crucible

A hot-dip galvanized and anti-vibration technology, applied in the field of alloys, can solve the problem of only 2.5 months of service life, and achieve the effects of excellent welding performance, shortening service life, and improving corrosion resistance and wear resistance.

Inactive Publication Date: 2018-09-28
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The average service life of cast iron zinc pots in early hot-dip galvanizing was only 2.5 months

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An iron alloy containing Sc and Hf for hot-dip galvanized anti-vibration iron pan at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.3wt.%, Bi: 0.6wt.%, Ge: 0.2wt.%, Sc: 0.2wt.%, Hf: 0.2wt.%, W: 0.3wt .%, the balance is iron. Alloy preparation method: Add the above-mentioned raw materials into an argon-protected induction furnace, and use a silicon carbide crucible; induction heating to 1500-1600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; The alloy liquid is kept at 1500-1600 degrees for 10 minutes and then cast into the required round ingot. The obtained ingot is hot-rolled at 800 degrees, and the rolling reduction in each pass is 10-15%. After every two hot rollings, the intermediate annealing temperature is 900 degrees, and the temperature is kept for 1 hour. Finally, the material is rolled into a steel plate with a thickness of 40-60mm, and the ...

Embodiment 2

[0020] An iron alloy containing Sc and Hf for hot-dip galvanized anti-vibration iron pan at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.5wt.%, Bi: 0.8wt.%, Ge: 0.5wt.%, Sc: 0.3wt.%, Hf: 0.5wt.%, W: 0.5wt .%, the balance is iron. Alloy preparation method: Add the above-mentioned raw materials into an argon-protected induction furnace, and use a silicon carbide crucible; induction heating to 1500-1600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; The alloy liquid is kept at 1500-1600 degrees for 10 minutes and then cast into the required round ingot. The obtained ingot is hot-rolled at 800 degrees, and the rolling reduction in each pass is 10-15%. After every two hot rollings, the intermediate annealing temperature is 900 degrees, and the temperature is kept for 1 hour. Finally, the material is rolled into a steel plate with a thickness of 40-60mm, and the ...

Embodiment 3

[0023] An iron alloy containing Sc and Hf for hot-dip galvanized anti-vibration iron pan at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.4wt.%, Bi: 0.7wt.%, Ge: 0.3wt.%, Sc: 0.2wt.%, Hf: 0.2wt.%, W: 0.4wt .%, the balance is iron. Alloy preparation method: Add the above-mentioned raw materials into an argon-protected induction furnace, and use a silicon carbide crucible; induction heating to 1500-1600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; The alloy liquid is kept at 1500-1600 degrees for 10 minutes and then cast into the required round ingot. The obtained ingot is hot-rolled at 800 degrees, and the rolling reduction in each pass is 10-15%. After every two hot rollings, the intermediate annealing temperature is 900 degrees, and the temperature is kept for 1 hour. Finally, the material is rolled into a steel plate with a thickness of 40-60mm, and the ...

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Abstract

The invention discloses a Sc and Hf-contained iron alloy for a hot-dip galvanizing anti-vibration iron crucible and a machining process of the Sc and Hf-contained iron alloy. The alloy comprises the ingredients of, in percentage by weight, 0.3-0.5% of Ca, 0.6-0.8% of Bi, 0.2-0.5% of Ge, 0.2-0.3% of Sc, 0.2-0.5% of Hf, 0.3-0.5% of W and the balance iron. The iron alloy is made into the iron crucible for hot-dip galvanizing after being made into a steel plate through casting and hot rolling, the anti-vibration falling capacity of the iron crucible to a transition layer of liquid zinc can be greatly improved, the service life of the iron crucible is prolonged to 20 years or above from 7-10 years, and the functions of improving production efficiency and saving the cost are achieved.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to an iron alloy. Background technique [0002] Hot dip galvanizing is called hot galvanizing for short. Hot-dip plating is a process in which the workpiece to be plated is immersed in a molten metal liquid to form a metal coating on the surface. Specifically, the iron and steel material to be plated is immersed in the molten coating metal and then taken out and cooled to form a metal coating on the surface. It is widely used in the production of low-melting point metal zinc, tin, aluminum, lead and their alloy coatings, mainly to prevent corrosion For the purpose, and has a certain decorative effect. The most widely used hot-dip coating is hot-dip galvanizing. When steel materials are exposed to corrosive conditions such as air, soil, and water, hot-dip galvanizing is the most widely used, effective and economical means of protection, such as steel structures for factories, trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/12C22C33/04C21D8/02C23C2/06
CPCC22C38/002C21D8/0205C21D8/0226C21D8/0263C22C33/04C22C38/005C22C38/12C23C2/003C23C2/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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