CN106041106A - Boron-containing copper alloy powder prepared with secondary water-mist method - Google Patents
Boron-containing copper alloy powder prepared with secondary water-mist method Download PDFInfo
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- CN106041106A CN106041106A CN201610574736.9A CN201610574736A CN106041106A CN 106041106 A CN106041106 A CN 106041106A CN 201610574736 A CN201610574736 A CN 201610574736A CN 106041106 A CN106041106 A CN 106041106A
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- Prior art keywords
- powder
- boron
- copper alloy
- adjusted
- alloy powder
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Classifications
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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
-
- 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
-
- 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
- C22C9/02—Alloys based on copper with tin 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
- 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
- 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
- B22F2009/0848—Melting process before atomisation
Abstract
The invention relates to boron-containing copper alloy powder with a water-mist method. The boron-containing copper alloy powder is characterized in that the boron-containing copper alloy powder is prepared from the following components: 500 parts of copper powder, 25 to 30 parts of tin powder and 8 to 10 parts of boron powder. According to the boron-containing copper alloy powder, the copper powder is heat-treated first, and the contents of copper, tin and boron are adjusted, so that a lead-free product is realized, and the boron-containing copper alloy powder is prepared with the secondary water-mist method. The copper alloy powder has the advantages of uniform and round particles, low oxygen content and good intensity, thermal conductivity, wear resistance and color.
Description
Technical field
The present invention relates to field of powder metallurgy, the method relating to using secondary water atomization to prepare copper powder and copper alloy powder.
Background technology
Traditional copper alloy powder is made up of copper, lead, stannum, boron (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%, boron 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, boron, 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 secondary water fog method that oxygen amount is low, powder body microscopic appearance is regular prepares the method for the copper alloy powder of boracic.
It is an object of the invention to be achieved through the following technical solutions.
A kind of secondary water fog method prepares the copper alloy powder of boracic, it is characterised in that it is prepared from by following component: former
Material copper powder 500 parts, glass putty 25-30 part, boron powder 8-10 part.
Described secondary water fog method prepares the copper alloy powder of boracic, it is characterised in that it is made by the steps and forms:
(1) raw material copper powder, glass putty and the preparation of boron powder
Copper powder, glass putty and boron powder are carried out heat treatment respectively, and heat treatment temperature is at 400～700 DEG C, and heat-treating atmosphere is reducing gases
Atmosphere；Copper powder, glass putty and boron 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
Glass putty and raw material boron 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 stannum and phosphorus；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
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；
(4) secondary-atomizing
One secondary cold water atomizer is set at 0.5cm～2cm below water atomizing nozzle again, carries out secondary-atomizing.Atomization
Carry out after end cooling down, be dehydrated, be dried, sieve the copper alloy powder i.e. obtaining boracic.
The present invention by first raw material copper powder being carried out heat treatment, and by allotment copper, stannum, the content of boron, it is achieved that product
Unleaded, reduce cost；The addition of boron, can effectively carry out deoxidation in the case of not affecting resistivity；The present invention
The boracic copper alloy powder granule even of preparation, resistivity is little, and oxidation resistent susceptibility is excellent, have good intensity, heat conductivity,
Wearability and color and luster.
Detailed description of the invention
A kind of secondary water fog method prepares the copper alloy powder of boracic, it is characterised in that it is prepared from by following component: former
Material copper powder 500 parts, glass putty 25 parts, 8 parts of boron powder.
A kind of secondary water fog method prepares the copper alloy powder of boracic, it is characterised in that it is made by the steps and forms:
(1) raw material copper powder, glass putty and the preparation of boron powder
Copper powder, glass putty and boron powder are carried out heat treatment respectively, and heat treatment temperature is at 400～700 DEG C, and heat-treating atmosphere is reducing gases
Atmosphere；Copper powder, glass putty and boron 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
Glass putty and raw material boron 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 stannum and phosphorus；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
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；
(4) secondary-atomizing
One secondary cold water atomizer is set at 0.5cm～2cm below water atomizing nozzle again, carries out secondary-atomizing.Atomization
Carry out after end cooling down, be dehydrated, be dried, sieve the copper alloy powder i.e. obtaining boracic.
Claims (2)
1. a secondary water fog method prepares the copper alloy powder of boracic, it is characterised in that it is prepared from by following component: raw material
Copper powder 500 parts, glass putty 25-30 part, boron powder 8-10 part.
2. prepare the copper alloy powder of boracic according to the secondary water fog method described in claim 1, it is characterised in that it is by as follows
Step is prepared from:
(1) raw material copper powder, glass putty and the preparation of boron powder
Copper powder, glass putty and boron powder are carried out heat treatment respectively, and heat treatment temperature is at 400～700 DEG C, and heat-treating atmosphere is reducing gases
Atmosphere；Copper powder, glass putty and boron 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
Glass putty and raw material boron 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 stannum and phosphorus；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
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；
(4) secondary-atomizing
One secondary cold water atomizer is set at 0.5cm～2cm below water atomizing nozzle again, carries out secondary-atomizing.Atomization
Carry out after end cooling down, be dehydrated, be dried, sieve the copper alloy powder i.e. obtaining boracic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574736.9A CN106041106A (en) | 2016-07-21 | 2016-07-21 | Boron-containing copper alloy powder prepared with secondary water-mist method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574736.9A CN106041106A (en) | 2016-07-21 | 2016-07-21 | Boron-containing copper alloy powder prepared with secondary water-mist method |
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| CN106041106A true CN106041106A (en) | 2016-10-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60141802A (en) * | 1983-12-28 | 1985-07-26 | Fukuda Kinzoku Hakufun Kogyo Kk | Alloy powder for forming dispersion-strengthening alloy |
| CN1353203A (en) * | 2001-11-02 | 2002-06-12 | 张业彭 | High-strength copper alloy with high electric conductivity for electrode welder |
| CN101530952A (en) * | 2009-04-29 | 2009-09-16 | 江苏科技大学 | Boracic Cu-P-based amorphous brazing filler metal and method for preparing same |
| CN101696477A (en) * | 2009-10-23 | 2010-04-21 | 吴棕洋 | Lead-free copper base alloy powder material and preparation method thereof |
| 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 |
-
2016
- 2016-07-21 CN CN201610574736.9A patent/CN106041106A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60141802A (en) * | 1983-12-28 | 1985-07-26 | Fukuda Kinzoku Hakufun Kogyo Kk | Alloy powder for forming dispersion-strengthening alloy |
| CN1353203A (en) * | 2001-11-02 | 2002-06-12 | 张业彭 | High-strength copper alloy with high electric conductivity for electrode welder |
| CN101530952A (en) * | 2009-04-29 | 2009-09-16 | 江苏科技大学 | Boracic Cu-P-based amorphous brazing filler metal and method for preparing same |
| CN101696477A (en) * | 2009-10-23 | 2010-04-21 | 吴棕洋 | Lead-free copper base alloy powder material and preparation method thereof |
| 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 |
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Application publication date: 20161026 |