CN103014611A - Copper infiltration agent for powder metallurgy and preparation method thereof - Google Patents
Copper infiltration agent for powder metallurgy and preparation method thereof Download PDFInfo
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- CN103014611A CN103014611A CN2012104931253A CN201210493125A CN103014611A CN 103014611 A CN103014611 A CN 103014611A CN 2012104931253 A CN2012104931253 A CN 2012104931253A CN 201210493125 A CN201210493125 A CN 201210493125A CN 103014611 A CN103014611 A CN 103014611A
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- copper
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- iron
- infiltration agent
- powder metallurgy
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Abstract
The invention relates to a copper infiltration agent for powder metallurgy and a preparation method thereof. The copper infiltration agent comprises the following components by mass percent: 2.1-2.4% of iron, 2.3-2.8% of manganese, 0.1-3% of bismuth and the balance of copper. The copper infiltration agent is a copper infiltration agent for powder metallurgy capable of improving the product qualification rate.
Description
Technical field
The invention belongs to powder metallurgical technology, refer to especially a kind of powder used in metallurgy copper seeping agent and preparation method.
Background technology
Powder metallurgy copperized technique is the conventional process that obtains high-density, the metallurgical part of high compactness, the various performances of the part of producing with this processing method are far above now common powder metallurgical technique, what therefore, mainly adopt in producing high-quality powder metallurgy product is to ooze process for copper.
Ooze copper in powder metallurgy, what existing technology adopted is to ooze the copper process with copper billet and powdered metal parts, and temperature is between 1090-1150 ℃.But the solubleness of iron in copper is between 3.8-4%, and is subjected to the impact of temperature little, and this has just caused oozing, and copper efficient is not high, and the surface of part also defective can occur, has influence on outward appearance and the intensity of product.Comprehensive, adopt the fraction defective that oozes the process for copper product of existing technology even up to 20%, in order to reduce production costs, can only adopt the secondary processing mode, to cover the situation of substandard products, even by secondary processing, also nearly about 10% product can't be processed, affected this and oozed the cost of process for copper.
Prior art proposes, and employing contains manganese element and joins in the copper seeping agent, is beneficial to the infiltration of copper.In copper seeping agent, the effect of manganese is to reduce the solubleness of iron in copper, but reduce simultaneously copper at the fusing point of piece surface, in actual production, although the adding of manganese is conducive to ooze the infiltration capacity of copper in the copper process, but also find, if the rate of permeation of excessive raising copper also reduces the solubleness of iron, but in the use procedure behind finished product, the iron of piece surface can continue that dissolving occurs is finally saturated to realize with the copper that infiltrates, caused in use for some time, piece surface occurs loose.
Summary of the invention
The objective of the invention is to overcome the prior art deficiency, a kind of powder used in metallurgy copper seeping agent that can improve product percent of pass is provided.
The present invention is achieved by the following technical solutions:
A kind of powder used in metallurgy copper seeping agent, its composition includes by mass percentage, the bismuth of the iron of 2.1-2.4%, the manganese of 2.3-2.8%, 0.1-0.3% and the copper of surplus.
Described preparation method is:
Then proportioning by form to calculate each and form grinds 8-14 hour in grinding machine, expected that on average the footpath be the powder of 0.5-2 micron, and then interior batch mixing 3-5 hour of mixer.
The beneficial effect that the present invention compares with prior art is:
The reason of adding bismuth is in copper seeping agent, and bismuth can reduce the melting temperature of copper seeping agent, and therefore being applicable to low temperature oozes process for copper, and in the technical program, the temperature of oozing process for copper can be at 850-1000 ℃.In the case, because bismuth has reduced melting temperature, obvious change does not occur in the performance that can not have influence on piece surface, and has improved the solubleness of iron in copper, and has improved seepage velocity, under equal conditions, can infiltrate more copper.
Embodiment
A kind of powder used in metallurgy copper seeping agent, its composition includes by mass percentage, the bismuth of the iron of 2.1-2.4%, the manganese of 2.3-2.8%, 0.1-0.3% and the copper of surplus.
Embodiment 1
A kind of powder used in metallurgy copper seeping agent, its composition includes by mass percentage, 2.1% iron, 2.3% manganese, 0.1% bismuth and the copper of surplus.
Embodiment 2
A kind of powder used in metallurgy copper seeping agent, its composition includes by mass percentage, 2.4% iron, 2.8% manganese, 0.3% bismuth and the copper of surplus.
Embodiment 3
A kind of powder used in metallurgy copper seeping agent, its composition includes by mass percentage, 2.3% iron, 2.5% manganese, 0.2% bismuth and the copper of surplus.
Described preparation method is:
Then proportioning by form to calculate each and form grinds 8-14 hour in grinding machine, expected that on average the footpath be the powder of 0.5-2 micron, and then interior batch mixing 3-5 hour of mixer.
The copper seeping agent that makes is oozed process for copper in 850-1000 ℃ of scope, remaining operation is identical with existing operation, certainly, this copper seeping agent also can ooze copper production in higher temperature range, but the effect that improves is also within reason many, therefore, not being to be strict with in the situation of quality, can utilize 850-1000 ℃ of temperature range to permeate fully.
Claims (2)
1. powder used in metallurgy copper seeping agent, it is characterized in that: its composition includes by mass percentage, the bismuth of the iron of 2.1-2.4%, the manganese of 2.3-2.8%, 0.1-0.3% and the copper of surplus.
2. the preparation method of a powder used in metallurgy copper seeping agent is characterized in that:
Calculate the proportioning that each forms by forming, its composition includes by mass percentage, the bismuth of the iron of 2.1-2.4%, the manganese of 2.3-2.8%, 0.1-0.3% and the copper of surplus;
Then in grinding machine, grind 8-14 hour, expected that on average the footpath be the powder of 0.5-2 micron, and then interior batch mixing 3-5 hour of mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104931253A CN103014611A (en) | 2012-11-22 | 2012-11-22 | Copper infiltration agent for powder metallurgy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104931253A CN103014611A (en) | 2012-11-22 | 2012-11-22 | Copper infiltration agent for powder metallurgy and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103014611A true CN103014611A (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104931253A Pending CN103014611A (en) | 2012-11-22 | 2012-11-22 | Copper infiltration agent for powder metallurgy and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103014611A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3305324A (en) * | 1966-05-26 | 1967-02-21 | Mallory & Co Inc P R | Tungsten powder bodies infiltrated with copper-titanium-bismuth or copper-titanium-tin |
| US20030221516A1 (en) * | 2002-05-29 | 2003-12-04 | Alcini William Victor | Copper-infiltrated iron powder article and method of forming same |
| CN101113511A (en) * | 2007-08-13 | 2008-01-30 | 包敢锋 | Powder metallurgy copperized agent and method for producing the same |
| WO2008086088A2 (en) * | 2007-01-03 | 2008-07-17 | United States Bronze Powders, Incorporated | Enhancement of material properties by infiltration of powder metal part: formulation and method of application thereof |
| CN101333640A (en) * | 2007-06-29 | 2008-12-31 | 福田金属箔粉工业株式会社 | Powder for infiltration |
| CN101736285A (en) * | 2008-11-21 | 2010-06-16 | 北京有色金属研究总院 | Copperizing solvent and preparation method thereof |
-
2012
- 2012-11-22 CN CN2012104931253A patent/CN103014611A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3305324A (en) * | 1966-05-26 | 1967-02-21 | Mallory & Co Inc P R | Tungsten powder bodies infiltrated with copper-titanium-bismuth or copper-titanium-tin |
| US20030221516A1 (en) * | 2002-05-29 | 2003-12-04 | Alcini William Victor | Copper-infiltrated iron powder article and method of forming same |
| WO2008086088A2 (en) * | 2007-01-03 | 2008-07-17 | United States Bronze Powders, Incorporated | Enhancement of material properties by infiltration of powder metal part: formulation and method of application thereof |
| CN101333640A (en) * | 2007-06-29 | 2008-12-31 | 福田金属箔粉工业株式会社 | Powder for infiltration |
| CN101113511A (en) * | 2007-08-13 | 2008-01-30 | 包敢锋 | Powder metallurgy copperized agent and method for producing the same |
| CN101736285A (en) * | 2008-11-21 | 2010-06-16 | 北京有色金属研究总院 | Copperizing solvent and preparation method thereof |
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Application publication date: 20130403 |