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A kind of preparation method adopting vacuum consumable electric arc melting cufe alloy material

A vacuum consumable arc and alloy material technology, applied in the field of non-ferrous metal alloys, can solve the problems of easy substitution of impurity elements and high cost, and achieve the effects of less macrosegregation, high quality, and stable composition.

Active Publication Date: 2019-11-12
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical alloying method: grind a certain proportion of Cu powder and Fe powder in a high-energy ball mill for a long time, so that the metal powder's structure is continuously refined during the frequent collision process, and finally achieve the purpose of atomic level mixing and alloying , but this method is easy to substitute impurity elements in the ball milling process, and the cost is high

Method used

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  • A kind of preparation method adopting vacuum consumable electric arc melting cufe alloy material
  • A kind of preparation method adopting vacuum consumable electric arc melting cufe alloy material
  • A kind of preparation method adopting vacuum consumable electric arc melting cufe alloy material

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Embodiment 1

[0025] A preparation method adopting vacuum consumable arc melting CuFe alloy material, comprising the following steps:

[0026] (1) Mixing of raw materials: The raw material of Cu is selected from electrolytic copper powder, the copper content of electrolytic copper powder is up to 99.8%, the particle size is -120 mesh, the bulk ratio is 0.6g / cm3, the raw material of Fe is selected from atomized iron powder, the particle size of atomized iron powder is -150 mesh, and the apparent density is 2.2Mg / m3. The composition and weight percentage of the material are: Cu70%, Fe30%. The raw materials are sprayed into the mixer, which is filled with a protective gas composed of helium and argon, and mixed in the mixer, the stirring speed is 1000r / min, the temperature is 150°C, and the mixing time is 2h;

[0027] (2) Compression: Put the mixed powder into the rubber sleeve, firstly perform mechanical vibration for 30s, then roll the material for 3 minutes, and then reverse the material fo...

Embodiment 2

[0031] A preparation method adopting vacuum consumable arc melting CuFe alloy material, comprising the following steps:

[0032](1) Mixing of raw materials: The raw material of Cu is selected from electrolytic copper powder, the copper content of electrolytic copper powder is up to 99.8%, the particle size is -120 mesh, the bulk ratio is 0.8g / cm3, the raw material of Fe is selected from atomized iron Powder, the particle size of atomized iron powder is -150 mesh, the apparent density is 2.5Mg / m3, the composition and weight percentage of the material are: Cu50%, Fe50%, the required raw materials are weighed according to the proportion, and pulsed The raw materials are sprayed into the mixer, which is filled with protective gas composed of helium and argon, and mixed in the mixer, the stirring speed is 1200r / min, the temperature is 180°C, and the mixing time is 3h;

[0033] (2) Compression: Put the mixed powder into the rubber sleeve and perform mechanical vibration for 40 secon...

Embodiment 3

[0037] A preparation method adopting vacuum consumable arc melting CuFe alloy material, comprising the following steps:

[0038] (1) Mixing of raw materials: The raw material of Cu is selected from electrolytic copper powder, the copper content of electrolytic copper powder is 99.8%, the particle size is -120 mesh, the bulk ratio is 1.07g / cm3, the raw material of Fe is selected from atomized iron Powder, the particle size of atomized iron powder is -150 mesh, the apparent density is 2.9Mg / m3, the material composition and its weight percentage are: Cu30%, Fe70%, take the required raw materials according to the proportion, and pulse The raw materials are sprayed into the mixer, which is filled with protective gas composed of helium and argon, and mixed in the mixer, the stirring speed is 1400r / min, the temperature is 200°C, and the mixing time is 4h;

[0039] (2) Compression: put the mixed powder into the rubber sleeve, firstly perform mechanical vibration for 60s, then roll the...

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Abstract

The invention discloses a preparing method for adopting vacuum self-consumption arcs to smelt CuFe alloy materials. The preparing method comprises the following steps that firstly, raw material mixingis conducted, raw materials include, by weight percent, 70%-30% of Cu and 30%-70% of Fe, the needed raw materials are weighed according to the proportion and mixed in a mixing machine, and the mixingtime is 2-4 h; secondly, pressing is conducted, the mixed powder obtained after mixing is arranged in a rubber sleeve to be mechanically vibrated for 30s-60s, then, material rolling is conducted for3-6 min, reverse material mounding is conducted 3-5 times, the treated mixed powder is pressed through an isostatic cool pressing method, the pressure ranges from 150 MPa to 300 MPa, and the pressuremaintaining time is 3-10 min; thirdly, sintering is conducted, a pressed consumable electrode is arranged in a vacuum sintering furnace to be sintered, the highest sintering temperature is controlledto range from 800 DEG C to 1,080 DEG C, the heat preservation time is 30-240 min, and the vacuum degree is larger than 5 pa; and fourthly, smelting is conducted, the sintered consumable electrode is arranged in a vacuum self-consumption arc smelting furnace to be smelted, and the smelting current is 1,000-4,000 A. According to the preparing method, the gas content is low, few inclusions exist, structure components are uniform, and Cr and Fe enrichment and other macroscopic and microscopic defects are avoided.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal alloys, and in particular relates to a method for preparing CuFe alloy materials by vacuum consumable arc melting. Background technique [0002] As high-strength and high-conductivity copper alloys are widely used in various industries, higher requirements are placed on the performance and manufacturing costs of such high-strength and high-conductivity copper alloys. Copper-iron alloys have the electrical conductivity, thermal conductivity, and ductility of copper at the same time. properties such as resistance, elasticity and iron's wear resistance, strength, hardness, magnetism and other properties, showing unique and superior characteristics, such as electromagnetic wave shielding, elasticity, conductivity, heat release, wear resistance, antibacterial properties etc., and copper-iron alloys can be processed into various physical forms such as rods, cables, plates, films, powders, tube...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C38/16C22C1/02C22C33/04C22B9/20C25C5/02
CPCC22B9/20C22C1/02C22C9/00C22C33/04C22C38/16C25C5/02
Inventor 周斌王文斌郭创立张航王群孙君鹏杨红艳
Owner SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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