CN113199029A - Diamond pre-alloy powder and preparation method thereof - Google Patents

Diamond pre-alloy powder and preparation method thereof Download PDF

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Publication number
CN113199029A
CN113199029A CN202110432913.0A CN202110432913A CN113199029A CN 113199029 A CN113199029 A CN 113199029A CN 202110432913 A CN202110432913 A CN 202110432913A CN 113199029 A CN113199029 A CN 113199029A
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China
Prior art keywords
content accounts
powder
diamond
alloy powder
boat
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Pending
Application number
CN202110432913.0A
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Chinese (zh)
Inventor
赵军喜
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Jiangsu Mengda Advanced Materials Technology Co ltd
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Jiangsu Mengda Advanced Materials Technology Co ltd
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Priority to CN202110432913.0A priority Critical patent/CN113199029A/en
Publication of CN113199029A publication Critical patent/CN113199029A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
    • B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water

Abstract

The invention discloses diamond prealloy powder, the product appearance is similar to a sphere; wherein the nickel content accounts for 8-10%, the copper content accounts for 17-21%, the tin content accounts for 2-4%, the phosphorus content accounts for 1.2-2.1%, the balance is iron, the laser granularity is 10-12 μm, the oxygen content is less than 0.25%, and the apparent density is 3.5-4.0g/cm3. Compared with the diamond tool made of matrix powder produced by a conventional water atomization method, the sharpness of the diamond tool is improved by 12-25%, and the working efficiency is greatly improved; the produced powder has fine granularity and higher surface energy, and provides driving force for the sintering process; the oxygen content is low, which is beneficial to the diffusion of atoms in the sintering process, the powder is combined, the formation of sintering necks in the sintering process is facilitated, and the density of sintered blocks is higherHigh.

Description

Diamond pre-alloy powder and preparation method thereof
Technical Field
The invention relates to the technical field of diamond pre-alloy powder, in particular to diamond pre-alloy powder and a preparation method thereof.
Background
At present, sharp products in the domestic diamond tools are popular in the market, and the conventional water atomization method is generally adopted for production at present, but the method has lower working efficiency, and the produced powder has thicker granularity.
Disclosure of Invention
The invention aims to provide diamond prealloy powder with high sharpness and high density and a preparation method thereof, aiming at the defects and the defects of the prior art and effectively improving the working efficiency of a diamond tool.
In order to achieve the purpose, the invention adopts the technical scheme that: the diamond prealloying powder has the innovation points that: the product is spherical-like; wherein the nickel content accounts for 8-10%, the copper content accounts for 17-21%, the tin content accounts for 2-4%, the phosphorus content accounts for 1.2-2.1%, and the balanceThe amount of iron is 10-12 μm, the laser particle size is less than 0.25%, and the apparent density is 3.5-4.0g/cm3。
The preparation method of the diamond prealloy powder has the innovation points that the preparation method comprises the following steps:
s1, taking industrial pure iron, electrolytic copper, electrolytic nickel, tin blocks and ferrophosphorus alloy as raw materials;
s2, heating the raw materials to 1600-;
s3, introducing hydrogen into the boat-pushing type reduction furnace for reduction under the protection of nitrogen, wherein the reduction temperature is 580-620 ℃, the boat loading amount is 15-20 kg, the boat pushing speed is 7-10min, and the hydrogen flow is 6-8Nm3/h；
And S4, finally, screening and batching the alloy powder obtained after reduction, and packaging the alloy powder in an anti-oxidation bag.
The invention has the beneficial effects that:
compared with the diamond tool made of matrix powder produced by a conventional water atomization method, the sharpness of the diamond tool is improved by 12-25%, and the working efficiency is greatly improved; the produced powder has fine granularity and higher surface energy, and provides driving force for the sintering process; the oxygen content is low, which is beneficial to the diffusion of atoms in the sintering process, the powder is combined, the formation of a sintering neck in the sintering process is facilitated, and the density of a sintered block is higher.
Detailed Description
The present invention will be further described with reference to the following embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A diamond prealloying powder, the product appearance is quasi-spherical; wherein the nickel content accounts for 8%, the copper content accounts for 17%, the tin content accounts for 4%, the phosphorus content accounts for 2.1%, the balance is iron, the laser particle size is 10-12 μmMeta, oxygen content less than 0.25%, apparent density 3.5-4.0g/cm3。
A preparation method of diamond prealloy powder comprises the following steps:
s1, using industrial pure iron, electrolytic copper, electrolytic nickel, tin block and ferrophosphorus alloy as raw materials.
S2, heating the raw materials to 1600-;
s3, introducing hydrogen into the boat-pushing type reduction furnace for reduction under the protection of nitrogen, wherein the reduction temperature is 580-620 ℃, the boat loading amount is 15-20 kg, the boat pushing speed is 7-10min, and the hydrogen flow is 6-8Nm3/h；
And S4, finally, screening and batching the alloy powder obtained after reduction, and packaging the alloy powder in an anti-oxidation bag.
The alloy powder produced by the method has fine granularity and higher surface energy.
Example 2
A diamond prealloying powder, the product appearance is quasi-spherical; wherein the nickel content accounts for 10%, the copper content accounts for 21%, the tin content accounts for 2%, the phosphorus content accounts for 1.2%, the balance is iron, the laser granularity is 10-12 μm, the oxygen content is less than 0.25%, and the apparent density is 3.5-4.0g/cm3。
A preparation method of diamond prealloy powder comprises the following steps:
s1, using industrial pure iron, electrolytic copper, electrolytic nickel, tin block and ferrophosphorus alloy as raw materials.
S2, heating the raw materials to 1600-;
s3, introducing hydrogen into the boat-pushing type reduction furnace for reduction under the protection of nitrogen, wherein the reduction temperature is 580-620 ℃, the boat loading amount is 15-20 kg, the boat pushing speed is 7-10min, and the hydrogen flow is 6-8Nm3/h；
And S4, finally, screening and batching the alloy powder obtained after reduction, and packaging the alloy powder in an anti-oxidation bag.
The alloy powder produced by the method has fine granularity and higher surface energy.
Example 3
A diamond prealloying powder, the product appearance is quasi-spherical; wherein the nickel content accounts for 9%, the copper content accounts for 20%, the tin content accounts for 3%, the phosphorus content accounts for 1.8%, the balance is iron, the laser granularity is between 10 and 12 mu m, the oxygen content is less than 0.25%, and the apparent density is 3.5 to 4.0g/cm3。
A preparation method of diamond prealloy powder comprises the following steps:
s1, using industrial pure iron, electrolytic copper, electrolytic nickel, tin block and ferrophosphorus alloy as raw materials.
S2, heating the raw materials to 1600-;
s3, introducing hydrogen into the boat-pushing type reduction furnace for reduction under the protection of nitrogen, wherein the reduction temperature is 580-620 ℃, the boat loading amount is 15-20 kg, the boat pushing speed is 7-10min, and the hydrogen flow is 6-8Nm3/h；
And S4, finally, screening and batching the alloy powder obtained after reduction, and packaging the alloy powder in an anti-oxidation bag.
The alloy powder produced by the method has fine granularity and higher surface energy.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (2)

1. A diamond prealloying powder characterized by: the product is spherical-like; wherein the nickel content accounts for 8-10%, the copper content accounts for 17-21%, the tin content accounts for 2-4%, the phosphorus content accounts for 1.2-2.1%, the balance is iron, the laser granularity is 10-12 μm, the oxygen content is less than 0.25%, and the apparent density is 3.5-4.0g/cm3。
2. A method of making a diamond prealloy powder according to claim 1, comprising the steps of:
s1, taking industrial pure iron, electrolytic copper, electrolytic nickel, tin blocks and ferrophosphorus alloy as raw materials;
s2, heating the raw materials to 1600-;
s3, introducing hydrogen into the boat-pushing type reduction furnace for reduction under the protection of nitrogen, wherein the reduction temperature is 580-620 ℃, the boat loading amount is 15-20 kg, the boat pushing speed is 7-10min, and the hydrogen flow is 6-8Nm3/h；
And S4, finally, screening and batching the alloy powder obtained after reduction, and packaging the alloy powder in an anti-oxidation bag.
CN202110432913.0A 2021-04-22 2021-04-22 Diamond pre-alloy powder and preparation method thereof Pending CN113199029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110432913.0A CN113199029A (en) 2021-04-22 2021-04-22 Diamond pre-alloy powder and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110432913.0A CN113199029A (en) 2021-04-22 2021-04-22 Diamond pre-alloy powder and preparation method thereof

Publications (1)

Publication Number Publication Date
CN113199029A true CN113199029A (en) 2021-08-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114015954A (en) * 2021-09-08 2022-02-08 先导薄膜材料有限公司 Device and method for reducing oxygen content in aluminum alloy
CN115041679A (en) * 2022-06-28 2022-09-13 河南黄河旋风股份有限公司 Diamond surface modification treatment method and application

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105441815A (en) * 2015-03-13 2016-03-30 泉州天智合金材料科技有限公司 Preparation method for modified superfine low-oxygen water-atomized alloy powder used for diamond tool
CN111408728A (en) * 2020-04-27 2020-07-14 广东萌达新新材料有限公司 Preparation method of prealloy powder for diamond tool
CN111496263A (en) * 2020-04-27 2020-08-07 江苏萌达新材料科技有限公司 Method for reducing iron-cobalt-copper alloy powder bulk ratio

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105441815A (en) * 2015-03-13 2016-03-30 泉州天智合金材料科技有限公司 Preparation method for modified superfine low-oxygen water-atomized alloy powder used for diamond tool
CN111408728A (en) * 2020-04-27 2020-07-14 广东萌达新新材料有限公司 Preparation method of prealloy powder for diamond tool
CN111496263A (en) * 2020-04-27 2020-08-07 江苏萌达新材料科技有限公司 Method for reducing iron-cobalt-copper alloy powder bulk ratio

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114015954A (en) * 2021-09-08 2022-02-08 先导薄膜材料有限公司 Device and method for reducing oxygen content in aluminum alloy
CN114015954B (en) * 2021-09-08 2022-07-01 先导薄膜材料有限公司 Method for reducing oxygen content in aluminum alloy
CN115041679A (en) * 2022-06-28 2022-09-13 河南黄河旋风股份有限公司 Diamond surface modification treatment method and application

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Application publication date: 20210803

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