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Process for preparing iron base non crystal state alloy by bar material plasma spraying

An amorphous alloy, iron-based amorphous technology, applied in metal material coating process, coating, fusion spraying, etc., can solve the problem that only amorphous alloy powder can be used for amorphous alloy, and achieve excellent The effects of magnetic properties, high amorphous content, and good wear resistance

Inactive Publication Date: 2006-06-28
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing iron-based amorphous alloys by plasma spraying on crystalline alloy rods, which overcomes the problem that only amorphous alloy powders can be used in the preparation of amorphous alloys by plasma spraying in the prior art

Method used

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  • Process for preparing iron base non crystal state alloy by bar material plasma spraying
  • Process for preparing iron base non crystal state alloy by bar material plasma spraying
  • Process for preparing iron base non crystal state alloy by bar material plasma spraying

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Select industrial pure iron: Si0.025, Mn0.15, P0.01, S0.026, C0.002, industrial ferroboron: B18.24, Si0.82, C0.4, Al0.27, industrial ferrosilicon: Si75 .25, S0.018, C0.09, P0.03, Mn0.36, Cr0.27, according to Fe 79 Si 10 B 11 Ratio Melting into a master alloy in an intermediate frequency vacuum induction furnace, and then preparing a rod with a diameter of 3 mm; the rod is continuously conveyed to the nozzle of the plasma spraying equipment through the rod feeding mechanism, and the rotation of the copper rod is controlled in the atmospheric environment The speed is 15r / s, the distance between the rod and the nozzle is 4mm, the rod feeding speed is 50mm / min, and the process parameters of the plasma spraying equipment are controlled at the same time: hydrogen pressure 0.25Mpa, argon pressure 0.85Mpa, voltage 55V, current 600A, spraying distance 100mm, the plasma spraying equipment is heated and atomized to spray on the rotating and cooled copper rod to obtain the iron-b...

Embodiment 2

[0025] Select industrial pure iron: Si0.025, Mn0.15, P0.01, S0.026, C0.002, industrial ferroboron: B18.24, Si0.82, C0.4, Al0.27, industrial ferrosilicon: Si75 .25, S0.018, C0.09, P0.03, Mn0.36, Cr0.27, according to Fe 80 Si 10 B 10 Ratio Melting into a master alloy in an intermediate frequency vacuum induction furnace, and then preparing a rod with a diameter of 4 mm; the rod is continuously conveyed to the nozzle of the plasma spraying equipment through the rod feeding mechanism, and the rotation of the copper rod is controlled in the atmospheric environment The speed is 20r / s, the distance between the rod and the nozzle is 3mm, the rod feeding speed is 40mm / min, and the process parameters of the plasma spraying equipment are controlled at the same time: hydrogen pressure 0.30Mpa, argon pressure 0.85Mpa, voltage 70V, current 650A, spraying distance 120mm, the plasma spraying equipment is heated and atomized to spray on the rotating and cooled copper rod to obtain the iron-b...

Embodiment 3

[0027] Select industrial pure iron: Si0.025, Mn0.15, P0.01, S0.026, C0.002, industrial ferrophosphorus: P0.24, Si0.02, C0.08, S0.004, Mn0.015, nodular graphite Cast iron: C0.036, Si0.021, Mn0.0052, P0.0005, according to Fe 80 P 13 C 7 Ratio Melting into a master alloy in an intermediate frequency vacuum induction furnace, and then preparing a rod with a diameter of 2 mm; the rod is continuously conveyed to the nozzle of the plasma spraying equipment through the rod feeding mechanism, and the rotation of the copper rod is controlled in the atmospheric environment The speed is 15r / s, the distance between the rod and the nozzle is 5mm, the rod feeding speed is 80mm / min, and the process parameters of the plasma spraying equipment are controlled at the same time: hydrogen pressure 0.30Mpa, argon pressure 0.70Mpa, voltage 50V, current 600A, spraying distance 80mm, the plasma spraying equipment is heated and atomized instantaneously and sprayed onto the rotating and cooled copper r...

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Abstract

The invention discloses a method used rod plasma spraying to manufacture iron base amorphous alloy. Ingot iron, industry iron boron and silicon iron are smelted to master alloy in proportion in induction furnace. Then it is formed into crystalline state alloy rod with 2mm-4mm diameter. The crystalline state alloy rod is sprayed to cooled copper stick to form iron base amorphous alloy by aerospace plasma spraying method. The invention overcomes the technique bias that the amorphous alloy powder can only be used in the manufacturing course. The formed amorphous alloy material has high amorphous content, hardness, good wearing qualities, and magnetic property.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation, and relates to a method for preparing an iron-based amorphous alloy, in particular to a method for preparing an iron-based amorphous alloy by plasma spraying of rods. Background technique [0002] Amorphous alloys refer to metal alloys with short-range order and long-range disorder in the arrangement of atoms in the solid state, also known as metallic glasses. Due to the excellent properties of amorphous alloys, such as high strength, high toughness, high hardness, extremely high corrosion resistance, soft magnetic properties, low temperature coefficient of resistance and high room temperature resistivity, etc., it is a promising new type of alloy. Material. [0003] In the preparation of amorphous alloys, due to the conventional cooling rate, metals and their alloys generally exist in a stable crystalline state, amorphous alloys can only be formed under non-equilibrium condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00C23C4/06C23C4/134
Inventor 冯拉俊雷阿利唐文浩
Owner XIAN UNIV OF TECH
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