CN106048297A - Spray method for preparing oxidation-resisting aluminum-containing copper alloy powder - Google Patents
Spray method for preparing oxidation-resisting aluminum-containing copper alloy powder Download PDFInfo
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- CN106048297A CN106048297A CN201610574537.8A CN201610574537A CN106048297A CN 106048297 A CN106048297 A CN 106048297A CN 201610574537 A CN201610574537 A CN 201610574537A CN 106048297 A CN106048297 A CN 106048297A
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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
- C22C9/01—Alloys based on copper with aluminium 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
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a spray method for preparing oxidation-resisting aluminum-containing copper alloy powder. The spray method is characterized in that the oxidation-resisting aluminum-containing copper alloy powder is prepared by the following components: 500 parts of raw copper powder, 25-30 parts of aluminum powder, 8-10 parts of tin power, 3-7 parts of benzotriazole, 3-7 parts of ammonium molybdate, 3-7 parts of sodium tripolysulfate and 6-8 parts of citric acid. By carrying out oxidation resisting treatment on the raw copper powder, and adjusting the contents of copper, tin and aluminum, the product lead-free effect is realized, and oxidation-resisting lead-free copper alloy powder is obtained. The oxidation-resisting aluminum-containing copper alloy powder prepared by the spray method is uniform and smooth in particle and low in oxygen content, and has good strength, thermal conductivity, electrical conductivity, abrasive resistance and color.
Description
Technical field
The present invention relates to field of powder metallurgy, relate to the side using water atomization to prepare antioxidative copper powder and copper alloy powder
Method.
Background technology
Traditional copper alloy powder is made up of copper, lead, stannum, 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%, stannum 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 stannum, 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 method that oxygen amount is low, the antioxidative copper alloy powder containing aluminum is prepared in the water atomization of powder body microscopic appearance rule.
It is an object of the invention to be achieved through the following technical solutions.
A kind of water fog method prepares antioxidative containing the copper alloy powder of aluminum, it is characterised in that its prepared by following component and
Become: raw material copper powder 500 parts, aluminium powder 25-30 part, glass putty 8-10 part, benzotriazole 3-7 part, ammonium molybdate 3-7 part, trimerization sulphuric acid
Sodium 3-7 part, citric acid 6-8 part.
Described water fog method prepares the antioxidative copper alloy powder containing aluminum, it is characterised in that it is made by the steps
Form:
(1) antioxidation of raw material copper powder
After adding benzotriazole, ammonium molybdate, trimerization sodium sulfate, citric acid mix homogeneously in raw material copper powder, 400～700
DEG C carrying out heat treatment, heat-treating atmosphere is reducing atmosphere；Copper powder after heat treatment is carried out crushing and screening, obtains particle diameter less than 150 μ
The antioxidative raw material copper powder of m；
(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 antioxidative raw material copper powder to after being completely melt, be sequentially added into stannum and aluminum；Treat institute
EF power is adjusted to after having melting sources 100kw, and IF-FRE is adjusted to 750Hz, overheated 5-10min, and overtemperature is 200-
250 DEG C, obtain melt liquid after melting；
(3) hydraulic atomized process
The middle leakage footpath of hydraulic atomized process is 3-5mm, employing annular ring type nozzle, injection diameter are 2-4mm, nozzle hole number is
8-16, nozzle angle be 10-20 degree, high-pressure atomization hydraulic pressure at 0.25Mpa～0.36Mpa, atomized water flow 50～68L/
min；Atomization carries out cooling down after terminating, be dehydrated, be dried, sieve and i.e. obtain containing aluminium copper powder.
The present invention by first raw material copper powder being carried out anti-oxidant treatment, and by allotment copper, stannum, the content of aluminum, it is achieved that
Product unleaded, reduces cost；Antioxidative prepared by the present invention powder particles even Han aluminium copper, and oxygen content
Low, there is good intensity, heat conductivity, wearability and color and luster.
Detailed description of the invention
A kind of water fog method prepares antioxidative containing the copper alloy powder of aluminum, it is characterised in that its prepared by following component and
Become: raw material copper powder 500 parts, aluminium powder 25 parts, glass putty 8 parts, benzotriazole 5 parts, ammonium molybdate 5 parts, 5 parts of trimerization sodium sulfate, Fructus Citri Limoniae
Acid 5 parts.
A kind of water fog method prepares antioxidative containing the copper alloy powder of aluminum, it is characterised in that its be made by the steps and
Become:
(1) antioxidation of raw material copper powder
After adding benzotriazole, ammonium molybdate, trimerization sodium sulfate, citric acid mix homogeneously in raw material copper powder, carry out at 600 DEG C
Heat treatment, heat-treating atmosphere is reducing atmosphere；Copper powder after heat treatment is carried out crushing and screening, obtains particle diameter resisting less than 150 μm
The raw material copper powder of oxidation；
(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 antioxidative raw material copper powder to after being completely melt, be sequentially added into stannum and aluminum；Treat institute
EF power is adjusted to after having melting sources 100kw, and IF-FRE is adjusted to 750Hz, overheated 10min, and overtemperature is 250 DEG C,
Obtain melt liquid after melting；
(3) hydraulic atomized process
The middle leakage footpath of hydraulic atomized process is 3mm, employing annular ring type nozzle, injection diameter are 4mm, nozzle hole number is 10
Individual, nozzle angle is 10 degree, high-pressure atomization hydraulic pressure at 0.36Mpa, atomized water flow at 50L/min；Atomization carries out cold after terminating
But, it is dehydrated, is dried, sieves and i.e. obtain containing aluminium copper powder.
Claims (2)
1. a water fog method prepares the antioxidative copper alloy powder containing aluminum, it is characterised in that it is prepared from by following component:
Raw material copper powder 500 parts, aluminium powder 25-30 part, glass putty 8-10 part, benzotriazole 3-7 part, ammonium molybdate 3-7 part, trimerization sodium sulfate 3-
7 parts, citric acid 6-8 part.
2. prepare the antioxidative copper alloy powder containing aluminum according to the water fog method described in claim 1, it is characterised in that it passes through
Following steps are prepared from:
(1) antioxidation of raw material copper powder
After adding benzotriazole, ammonium molybdate, trimerization sodium sulfate, citric acid mix homogeneously in raw material copper powder, 400～700
DEG C carrying out heat treatment, heat-treating atmosphere is reducing atmosphere；Copper powder after heat treatment is carried out crushing and screening, obtains particle diameter less than 150 μ
The antioxidative raw material copper powder of m；
(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 antioxidative raw material copper powder to after being completely melt, be sequentially added into stannum and aluminum；Treat institute
EF power is adjusted to after having melting sources 100kw, and IF-FRE is adjusted to 750Hz, overheated 5-10min, and overtemperature is 200-
250 DEG C, obtain melt liquid after melting；
(3) hydraulic atomized process
The middle leakage footpath of hydraulic atomized process is 3-5mm, employing annular ring type nozzle, injection diameter are 2-4mm, nozzle hole number is
8-16, nozzle angle be 10-20 degree, high-pressure atomization hydraulic pressure at 0.25Mpa～0.36Mpa, atomized water flow 50～68L/
min；Atomization carries out cooling down after terminating, be dehydrated, be dried, sieve and i.e. obtain containing aluminium copper powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574537.8A CN106048297A (en) | 2016-07-21 | 2016-07-21 | Spray method for preparing oxidation-resisting aluminum-containing copper alloy powder |
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| CN201610574537.8A CN106048297A (en) | 2016-07-21 | 2016-07-21 | Spray method for preparing oxidation-resisting aluminum-containing copper alloy powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648092A (en) * | 2019-02-15 | 2019-04-19 | 安徽旭晶粉体新材料科技有限公司 | A kind of preparation method of the copper-based alkene alloy powder of water atomization |
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| CN101696477A (en) * | 2009-10-23 | 2010-04-21 | 吴棕洋 | Lead-free copper base alloy powder material and preparation method thereof |
| CN102586646A (en) * | 2012-02-28 | 2012-07-18 | 浙江吉利来新材料有限公司 | Copper alloy powder for lead-free bimetallic lubricating materials and preparation method thereof |
| CN103305718A (en) * | 2013-06-18 | 2013-09-18 | 北京科技大学 | Method for preparing Al2O3 dispersion strengthening copper alloy through high velocity compaction molding |
| CN104480339A (en) * | 2014-12-31 | 2015-04-01 | 扬州立德粉末冶金股份有限公司 | Method for preparing aluminum carbide dispersion-strengthened copper |
| CN104493187A (en) * | 2014-12-25 | 2015-04-08 | 安徽旭晶粉体新材料科技有限公司 | Spray atomization process used in process of preparing metal powder by water atomization |
| CN104511594A (en) * | 2014-12-25 | 2015-04-15 | 安徽旭晶粉体新材料科技有限公司 | Improved process for producing copper alloy powder by water atomization method |
| CN104513908A (en) * | 2014-12-25 | 2015-04-15 | 安徽旭晶粉体新材料科技有限公司 | Medium-frequency furnace melting technology for preparing copper alloy powder by adopting water mist method |
| CN104525959A (en) * | 2014-12-25 | 2015-04-22 | 安徽旭晶粉体新材料科技有限公司 | Compound antioxidant for producing copper powder through water atomization method |
| CN105088005A (en) * | 2015-08-13 | 2015-11-25 | 山西玉华再制造科技有限公司 | Non-spark aluminum bronze powder for laser cladding, preparation method and cladding method |
| CN105483419A (en) * | 2016-01-25 | 2016-04-13 | 江西省科学院应用物理研究所 | Preparation method of high-strength and high-conductivity aluminum oxide dispersion-strengthened copper-based composite |
-
2016
- 2016-07-21 CN CN201610574537.8A patent/CN106048297A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696477A (en) * | 2009-10-23 | 2010-04-21 | 吴棕洋 | Lead-free copper base alloy powder material and preparation method thereof |
| CN102586646A (en) * | 2012-02-28 | 2012-07-18 | 浙江吉利来新材料有限公司 | Copper alloy powder for lead-free bimetallic lubricating materials and preparation method thereof |
| CN103305718A (en) * | 2013-06-18 | 2013-09-18 | 北京科技大学 | Method for preparing Al2O3 dispersion strengthening copper alloy through high velocity compaction molding |
| CN104493187A (en) * | 2014-12-25 | 2015-04-08 | 安徽旭晶粉体新材料科技有限公司 | Spray atomization process used in process of preparing metal powder by water atomization |
| CN104511594A (en) * | 2014-12-25 | 2015-04-15 | 安徽旭晶粉体新材料科技有限公司 | Improved process for producing copper alloy powder by water atomization method |
| CN104513908A (en) * | 2014-12-25 | 2015-04-15 | 安徽旭晶粉体新材料科技有限公司 | Medium-frequency furnace melting technology for preparing copper alloy powder by adopting water mist method |
| CN104525959A (en) * | 2014-12-25 | 2015-04-22 | 安徽旭晶粉体新材料科技有限公司 | Compound antioxidant for producing copper powder through water atomization method |
| CN104480339A (en) * | 2014-12-31 | 2015-04-01 | 扬州立德粉末冶金股份有限公司 | Method for preparing aluminum carbide dispersion-strengthened copper |
| CN105088005A (en) * | 2015-08-13 | 2015-11-25 | 山西玉华再制造科技有限公司 | Non-spark aluminum bronze powder for laser cladding, preparation method and cladding method |
| CN105483419A (en) * | 2016-01-25 | 2016-04-13 | 江西省科学院应用物理研究所 | Preparation method of high-strength and high-conductivity aluminum oxide dispersion-strengthened copper-based composite |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648092A (en) * | 2019-02-15 | 2019-04-19 | 安徽旭晶粉体新材料科技有限公司 | A kind of preparation method of the copper-based alkene alloy powder of water atomization |
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