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Production method for copper-iron diffusion powder

A production method and technology for diffusing powder, applied in the field of powder metallurgy manufacturing, can solve the problems of high bulk density of pre-alloyed powder, easy flaky formation of copper powder, short powder mixing time, etc. The effect of low density and simple production method

Active Publication Date: 2018-09-28
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the copper-iron pre-alloyed powder is mainly produced by the atomization method, but the pre-alloyed powder produced by the atomization method has the shortcomings of high bulk density and poor formability, and cannot be used in the diamond tool manufacturing industry on a large scale; in order to make up for the shortage, domestic general Electrolytic copper powder is mixed with iron powder and then subjected to high-temperature diffusion treatment. However, due to the good ductility of copper powder, the mixing time is short and it is easy to cause uneven mixing. If the mixing time is long, the copper powder is easy to form flakes, resulting in slow diffusion. , the diffusion efficiency is low; if the diffusion temperature is increased, the powder is easy to sinter, and the formability after crushing becomes poor

Method used

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  • Production method for copper-iron diffusion powder
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  • Production method for copper-iron diffusion powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Use -300 mesh copper oxide powder and -300 mesh reduced iron powder.

[0028] 2) Mix the copper oxide powder with industrial engine oil, and the copper content in the copper oxide is 30Kg, that is, the copper oxide is 37.5Kg, and the industrial engine oil is selected as the binder, and the industrial engine oil is 0.6 Kg. The mixing time is 1 hour and 20 minutes. After mixing, it becomes loose and there is no powder phenomenon.

[0029] 3) Put the reduced iron powder into the three-dimensional mixer, and the quality of the reduced iron powder is 70 Kg, and then add the copper oxide powder mixed with industrial oil into the three-dimensional mixer.

[0030] 4) The three-dimensional mixer starts working and mixing, and the mixing time is 2 hours and 40 minutes to ensure that the fine copper oxide powder particles are fully embedded in the iron powder, and different parts of the mixed powder are sampled and analyzed to ensure that each sample in different parts The dif...

Embodiment 2

[0039] 1) Choose -300 mesh copper oxide powder, choose industrial machine oil as binder, and choose -300 mesh reduced iron powder.

[0040] 2) Mix copper oxide powder with industrial engine oil, and the copper content in copper oxide is 5Kg, that is, the mass of copper oxide is 6.25 Kg, and the industrial engine oil is 0.1 Kg. The mixing time is 1 hour and 20 minutes. After mixing, it becomes loose and there is no powder phenomenon.

[0041] 3) Put the reduced iron powder into the three-dimensional mixer, and the quality of the reduced iron powder is 95Kg, and then add the copper oxide powder mixed with industrial oil into the three-dimensional mixer.

[0042] 4) The three-dimensional mixer starts working and mixing. The mixing time is 2 hours and 40 minutes to ensure that the fine copper oxide powder particles are fully embedded in the iron powder. After mixing, different parts of the powder are sampled and analyzed to ensure that each sample in different parts The differenc...

Embodiment 3

[0051] 1) Choose -300 mesh copper oxide powder, choose industrial machine oil as binder, and choose -300 mesh reduced iron powder and nickel powder.

[0052] 2) Mix copper oxide powder with industrial engine oil, and the copper content in copper oxide is 30Kg, that is, the copper oxide is 37.5Kg, and the industrial engine oil is 0.6 Kg. The mixing time is 1 hour and 20 minutes. After mixing, it is loose and there is no powder phenomenon. .

[0053] 3) Put the reduced iron powder and nickel powder into the three-dimensional mixer, and the quality of the reduced iron powder is 60Kg, and the quality of the nickel powder is 10 Kg, and then add the copper oxide powder mixed with industrial oil into the three-dimensional mixer.

[0054] 4) The three-dimensional mixer starts to work and mix the materials. The mixing time is 2 hours and 40 minutes to ensure that the fine copper oxide powder particles are fully embedded in the iron powder. After mixing, different parts of the powder ar...

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Abstract

The invention belongs to the field of powder metallurgy manufacturing and discloses a production method for metal diffusion powder. The production method comprises the steps that cupric oxide powder with -300 meshes is selected, industrial machine oil is selected as binders, or mixed powder of reduced iron powder with -300 meshes and nickel powder with -300 meshes is selected; the cupric oxide powder and the industrial machine oil are mixed, the reduced iron powder or the mixed powder of the reduced iron powder and the nickel powder is loaded in a three-dimensional blender mixer, and then thecupric oxide powder is added into the three-dimensional blender mixer; material mixing is started, the mixed powder is added into an iron powder reducing furnace, a reducing atmosphere is added, temperature rise continues after reducing is finished, high temperature diffusion is started, a beater is utilized to scatter the powder discharged from the furnace, and then iron-copper diffusion powder or copper-iron-nickel diffusion powder with -200 meshes is screened out. The product produced by the method has the beneficial effects that ingredients are even, almost no segregation occurs, the apparent density of the product is low, and the formability is good, and has broad popularization value.

Description

technical field [0001] The invention relates to the field of powder metallurgy manufacturing, in particular to a production method of metal diffusion powder. Background technique [0002] At present, the copper-iron pre-alloyed powder is mainly produced by the atomization method, but the pre-alloyed powder produced by the atomization method has the shortcomings of high bulk density and poor formability, and cannot be used in the diamond tool manufacturing industry on a large scale; in order to make up for the shortage, domestic general Electrolytic copper powder is mixed with iron powder and then subjected to high-temperature diffusion treatment. However, due to the good ductility of copper powder, the mixing time is short and it is easy to cause uneven mixing. If the mixing time is long, the copper powder is easy to form flakes, resulting in slow diffusion. , the diffusion efficiency is low; if the diffusion temperature is increased, the powder is easy to sinter, and the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/22
CPCB22F9/22
Inventor 宋谋通何子川龚继宝王文鹏
Owner JINCHUAN GROUP LIMITED
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