CN106048301A - Spray method for preparing tungsten-containing copper alloy powder - Google Patents

Spray method for preparing tungsten-containing copper alloy powder Download PDF

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Publication number
CN106048301A
CN106048301A CN201610574680.7A CN201610574680A CN106048301A CN 106048301 A CN106048301 A CN 106048301A CN 201610574680 A CN201610574680 A CN 201610574680A CN 106048301 A CN106048301 A CN 106048301A
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CN
China
Prior art keywords
powder
tungsten
copper
adjusted
zinc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610574680.7A
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Chinese (zh)
Inventor
江建平
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ANHUI XUJING POWDER NEW-MATERIAL SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
ANHUI XUJING POWDER NEW-MATERIAL SCIENCE & TECHNOLOGY Co Ltd
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Application filed by ANHUI XUJING POWDER NEW-MATERIAL SCIENCE & TECHNOLOGY Co Ltd filed Critical ANHUI XUJING POWDER NEW-MATERIAL SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201610574680.7A priority Critical patent/CN106048301A/en
Publication of CN106048301A publication Critical patent/CN106048301A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/04—Alloys based on copper with zinc as the next major constituent
    • 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
    • B22F1/142—Thermal or thermo-mechanical treatment
    • 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
    • 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
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Abstract

The invention discloses a spray method for preparing tungsten-containing copper alloy powder. The spray method is characterized in that the tungsten-containing copper alloy powder is prepared by the following components: 500 parts of raw copper powder, 25-30 parts of zinc powder and 8-10 parts of tungsten powder. By carrying out thermal treatment on the raw copper powder, and adjusting the contents of copper, tungsten and zinc, the product lead-free effect is realized, and the tungsten-containing copper alloy powder prepared by the spray method has higher sintering initial temperature, higher oxidation resistance and better thermal endurance than the raw copper powder.

Description

A kind of water fog method prepares the copper alloy powder of tungstenic
Technical field
The present invention relates to field of powder metallurgy, the method relating to using water fog method to prepare copper powder and copper alloy powder.
Background technology
Traditional copper alloy powder is made up of copper, lead, tungsten, zinc (or phosphorus), due to containing lead, toxic to human body, Have pollution, lead and its compound tissue each to human body the most toxic to environment, route of intoxication can have respiratory tract to suck its steam Or dust, then in respiratory tract phagocyte by its rapid band to blood；Or absorb through digestive tract, enter blood circulation and occur Poisoning.The raising day by day environmental protection consciousness and own health required along with people and mechanization traffic, production and daily Popularizing of life instrument, it was recognized that various instrument in use produced refuse is to human body and the pollution of environment, The all parts that it is desirable to used instrument is all environmentally friendly machine.Therefore copper alloy powder unleaded becomes development Inevitable.
Preparing copper powder with atomization, its medium has two kinds, and one is gas, especially noble gas, prepares the micro-of powder delivery It is nearly regular spherical for seeing pattern, and oxygen content ratio is relatively low, if atomization process control fine, the copper powder powder prepared can To be directly over being sieved into product, but production cost is higher, and requires higher to safety precautions.Another kind is water, though So production cost is low, safety is high, but the copper powder of output not only oxygen content is high, and microscopic appearance is irregular, has pattern The industry of high requirement cannot meet needs.
The patent No. 200810072435.1 discloses a kind of novel copper-base alloy powder, and its formula forms by weight percentage For: bismuth 1-15%, tungsten 0.5-10%, zinc 0.3-15%, surplus is copper.Its manufacture method is: first put in high-frequency melting furnace by copper, After fusing, it is being sequentially added into tungsten, bismuth, zinc, all after fusing also mix homogeneously, is being poured in filter bag, sprays through chevron nozzle, and It is ground into powder, drying by High-Pressure Water.This patent replaces lead due to this copper-base alloy powder bismuth, the most leaded, right Human non-toxic's evil, environmentally safe, is a kind of environment-friendly type copper-base alloy powder.But bismuth is rare metal, adds undoubtedly Substantial amounts of cost.
Summary of the invention
The purpose of the present invention is aiming at the deficiency that above-mentioned prior art exists, it is provided that a kind of low cost, safety is high, contain The water fog method that oxygen amount is low, powder body microscopic appearance is regular prepares the method for the copper alloy powder of tungstenic.
It is an object of the invention to be achieved through the following technical solutions.
A kind of water fog method prepares the copper alloy powder of tungstenic, it is characterised in that it is prepared from by following component: raw copper 500 parts of powder, zinc powder 25-30 part, tungsten powder 8-10 part.
Described water fog method prepares the copper alloy powder of tungstenic, it is characterised in that it is made by the steps and forms:
(1) preparation of raw material copper powder, tungsten powder and zinc powder
Copper powder, tungsten powder and zinc powder carry out heat treatment respectively, and heat treatment temperature is at 400～700 DEG C, and heat-treating atmosphere is reducing gases Atmosphere；Copper powder, tungsten powder and zinc powder after heat treatment are carried out crushing and screening respectively, obtains particle diameter less than the raw material copper powder of 150 μm, raw material Tungsten powder and raw material zinc powder；
(2) intermediate frequency (IF) smelting equipment is used to carry out melting
EF power is adjusted to 40kw baker 20min, is adjusted to 60kw baker 20min, then is adjusted to 100kw baker until furnace bottom is rubescent Terminate；EF power is adjusted to 200kw, adds raw material copper powder to after being completely melt, be sequentially added into tungsten and zinc；Treat that all raw materials melt EF power is adjusted to after change 100kw, and IF-FRE is adjusted to 750Hz, overheated 5-10min, and overtemperature is 200-250 DEG C, Melt liquid after melting；
(3) hydraulic atomized process
In atomization process, jet apex angle is 40-45 degree, and nozzle material is No. 45 steel, and bottom pour ladle aperture is 5-8mm, and atomizing pressure is 18-25Mpa, the height of atomization bucket is 3m, and chilled water is 0.3-0.5m；Atomization carries out cooling down after terminating, is dehydrated, is dried, sieves Divide and i.e. obtain copper alloy powder.
The present invention by first raw material copper powder being carried out heat treatment, and by allotment copper, zinc, the content of tungsten, it is achieved that product Unleaded, reduce cost；The addition of tungsten powder, it is possible to increase the sintering initial temperature of copper, increases high temperature hardness；This copper alloy Powder has the sintering initial temperature higher than copper powders, the heat resistance that high non-oxidizability is become reconciled.
Detailed description of the invention
A kind of water fog method prepares the copper alloy powder of tungstenic, it is characterised in that it is prepared from by following component: raw copper 500 parts of powder, zinc powder 25 parts, tungsten powder 8 parts.
A kind of water fog method prepares the copper alloy powder of tungstenic, it is characterised in that it is made by the steps and forms:
(1) preparation of raw material copper powder, tungsten powder and zinc powder
Copper powder, tungsten powder and zinc powder carry out heat treatment respectively, and heat treatment temperature is at 700 DEG C, and heat-treating atmosphere is reducing atmosphere；Will After heat treatment, copper powder, tungsten powder and zinc powder carry out crushing and screening respectively, obtain particle diameter less than the raw material copper powder of 150 μm, raw material tungsten powder With raw material zinc powder；
(2) intermediate frequency (IF) smelting equipment is used to carry out melting
EF power is adjusted to 40kw baker 20min, is adjusted to 60kw baker 20min, then is adjusted to 100kw baker until furnace bottom is rubescent Terminate；EF power is adjusted to 200kw, adds raw material copper powder to after being completely melt, be sequentially added into tungsten and zinc；Treat that all raw materials melt EF power is adjusted to after change 100kw, and IF-FRE is adjusted to 750Hz, overheated 10min, and overtemperature is 250 DEG C, obtains melting Rear melt liquid；
(3) hydraulic atomized process
In atomization process, jet apex angle is 45 degree, and nozzle material is No. 45 steel, and bottom pour ladle aperture is 5mm, and atomizing pressure is 25Mpa, The height of atomization bucket is 3m, and chilled water is 0.5m；Atomization carries out cooling down after terminating, be dehydrated, be dried, sieve and i.e. obtain copper alloy Powder.

Claims (2)

1. a water fog method prepares the copper alloy powder of tungstenic, it is characterised in that it is prepared from by following component: raw material copper powder 500 parts, zinc powder 25-30 part, tungsten powder 8-10 part.
2. prepare the copper alloy powder of tungstenic according to the water fog method described in claim 1, it is characterised in that it is as follows It is prepared from:
(1) preparation of raw material copper powder, tungsten powder and zinc powder
Copper powder, tungsten powder and zinc powder carry out heat treatment respectively, and heat treatment temperature is at 400～700 DEG C, and heat-treating atmosphere is reducing gases Atmosphere；Copper powder, tungsten powder and zinc powder after heat treatment are carried out crushing and screening respectively, obtains particle diameter less than the raw material copper powder of 150 μm, raw material Tungsten powder and raw material zinc powder；
(2) intermediate frequency (IF) smelting equipment is used to carry out melting
EF power is adjusted to 40kw baker 20min, is adjusted to 60kw baker 20min, then is adjusted to 100kw baker until furnace bottom is rubescent Terminate；EF power is adjusted to 200kw, adds raw material copper powder to after being completely melt, be sequentially added into tungsten and zinc；Treat that all raw materials melt EF power is adjusted to after change 100kw, and IF-FRE is adjusted to 750Hz, overheated 5-10min, and overtemperature is 200-250 DEG C, Melt liquid after melting；
(3) hydraulic atomized process
In atomization process, jet apex angle is 40-45 degree, and nozzle material is No. 45 steel, and bottom pour ladle aperture is 5-8mm, and atomizing pressure is 18-25Mpa, the height of atomization bucket is 3m, and chilled water is 0.3-0.5m；Atomization carries out cooling down after terminating, is dehydrated, is dried, sieves Divide and i.e. obtain copper alloy powder.
CN201610574680.7A 2016-07-21 2016-07-21 Spray method for preparing tungsten-containing copper alloy powder Pending CN106048301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201610574680.7A CN106048301A (en) 2016-07-21 2016-07-21 Spray method for preparing tungsten-containing copper alloy powder

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CN106048301A true CN106048301A (en) 2016-10-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115889795A (en) * 2022-12-16 2023-04-04 西安宝德九土新材料有限公司 Spherical tungsten-copper composite powder and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1266909A (en) * 2000-04-09 2000-09-20 中南工业大学 Method for manufacturing self-lubricating float bearing of turbine booster by powder metallurgy technology
CN101696477A (en) * 2009-10-23 2010-04-21 吴棕洋 Lead-free copper base alloy powder material and preparation method thereof
CN101696478A (en) * 2009-10-23 2010-04-21 吴棕洋 Lead-free copper-based alloy powder material and preparation method thereof
CN102492884A (en) * 2011-12-07 2012-06-13 北京理工大学 Preparation method of novel tungsten-copper-zinc alloy material
CN105057681A (en) * 2015-07-29 2015-11-18 昆山德泰新材料科技有限公司 Preparation method for tungsten copper nickel alloy powder
CN105057682A (en) * 2015-07-29 2015-11-18 昆山德泰新材料科技有限公司 Preparation method of tungsten-copper-tin alloy powder
CN105063411A (en) * 2015-07-29 2015-11-18 昆山德泰新材料科技有限公司 Preparation method for tungsten-copper-cobalt alloy powder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1266909A (en) * 2000-04-09 2000-09-20 中南工业大学 Method for manufacturing self-lubricating float bearing of turbine booster by powder metallurgy technology
CN101696477A (en) * 2009-10-23 2010-04-21 吴棕洋 Lead-free copper base alloy powder material and preparation method thereof
CN101696478A (en) * 2009-10-23 2010-04-21 吴棕洋 Lead-free copper-based alloy powder material and preparation method thereof
CN102492884A (en) * 2011-12-07 2012-06-13 北京理工大学 Preparation method of novel tungsten-copper-zinc alloy material
CN105057681A (en) * 2015-07-29 2015-11-18 昆山德泰新材料科技有限公司 Preparation method for tungsten copper nickel alloy powder
CN105057682A (en) * 2015-07-29 2015-11-18 昆山德泰新材料科技有限公司 Preparation method of tungsten-copper-tin alloy powder
CN105063411A (en) * 2015-07-29 2015-11-18 昆山德泰新材料科技有限公司 Preparation method for tungsten-copper-cobalt alloy powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115889795A (en) * 2022-12-16 2023-04-04 西安宝德九土新材料有限公司 Spherical tungsten-copper composite powder and preparation method thereof

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Application publication date: 20161026