CN101113511B - Powder metallurgy copperized agent and method for producing the same - Google Patents
Powder metallurgy copperized agent and method for producing the same Download PDFInfo
- Publication number
- CN101113511B CN101113511B CN2007100260189A CN200710026018A CN101113511B CN 101113511 B CN101113511 B CN 101113511B CN 2007100260189 A CN2007100260189 A CN 2007100260189A CN 200710026018 A CN200710026018 A CN 200710026018A CN 101113511 B CN101113511 B CN 101113511B
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- Prior art keywords
- powder
- agent
- copperized
- powder metallurgy
- copper
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 22
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000012255 powdered metal Substances 0.000 description 4
- 229910002549 Fe–Cu Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000754 repressing effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The invention relates to a powder metallurgy copperizing agent, which is characterized in that the copperizing agent essentially consists of the mass percentages of materials of: 1.7 percent to 2.1 percent of Fe powder, 3.9 percent to 4.3 percent of Mn powder, 93.6 percent to 94.4 percent of Cu powder. The producing method of the copperizing agent is that: the prepared material is mixed in a double tapered mixer at a rotating speed of 19 to 21r/min for 30 to 35min. the powder metallurgy copperizing agent of the invention does not erode products and affect the strength of products.
Description
Technical field
The present invention relates to a kind of powder metallurgy.Particularly relate to a kind of powder metallurgy copperized agent.Belong to the mmaterial technical field.
Background technology
Powder metallurgy copperized technology is that a kind of (500Mpa～600Mpa) obtains the technology of high-density and even fine and close powdered metal parts down at common pressing pressure.Far above technologies such as temperature and pressure, repressing and re-sinterings, so it occupies suitable share in high-end powder metallurgy product with the performances such as surging force, stopping property, wear resistance and workability of the part of this explained hereafter.But, get 1120 ℃ usually because the copper that oozes of powder metallurgy is to carry out 1090 ℃-1150 ℃ temperature range.And be about 3.8%-4% in this temperature range iron solubleness in copper, caused directly oozing copper with Cu piece and powdered metal parts, ooze copper efficient and be about 85%, the surface of part can form etching crack with inner, influence the outward appearance and the shock strength of product, this has caused the substandard products of (25%-35%) in enormous quantities to occur.Usually adopt mach method to remove substandard products, this has increased tooling cost.Therefore be necessary the copper seeping agent developing a kind of not corrosion products, do not influence product strength.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of not corrosion products, the powder metallurgy copperized agent that does not influence product strength and production method thereof are provided.
The object of the present invention is achieved like this: a kind of powder metallurgy copperized agent is characterized in that described copper seeping agent mainly is made up of the raw material of following mass percent:
Fe powder 1.7～2.1%
Mn powder 3.9～4.3%
Cu powder 93.6%～94.4%.
The production method of powder metallurgy copperized agent of the present invention is mixed 30～35min with the material rotating speed with 19～21r/min in double cone mixer for preparing.
The Fe powder of introducing in the powder metallurgy copperized agent former because: make Cu saturated to Fe before infiltration, guarantee that Cu can't corrode powdered metal parts under infiltrating temperature.The Fe add-on is 1.0% when following, oozes the residual evidence of corrosion of product surface behind the copper, and add-on is oozed the copper temperature and still have residual evidence of corrosion in the surface in the time of 1120 ℃-1150 ℃ when 1.0%-1.6%.Product surface is residual when above that the iron particle that can't remove is arranged 2.2% for add-on, measures 1.7～2.1% so the Fe powder adds.
Introduce the former of Mn powder in the powder metallurgy copperized agent because: Mn can reduce the solubleness of iron in copper, and the Mn powder can be oxidized to loose MnO in the time of 500 ℃
2In oozing the copper process, the Mn powder of uniform mixing in the Fe-Cu powder forms continuous, loose porous skeleton after oxidation, this skeleton oozes the effect that the copper temperature range plays storing liquid Cu at 1090 ℃-1150 ℃, make the liquid copper can unrestricted flow, the capillary force that can only be produced by the hole of powdered metal parts inside sucks liquid Cu, make that to ooze copper more even, it is controlled to ooze the copper zone.The Mn powder content can't form continuous skeleton in the copper seeping agent when 1%-2.8%, oozes the vestige after the copper products surface has copper liquid mobile; Can form the successive skeleton during Mn powder content 2.8%-3.8%, but frame strength is not enough, can not remains to product and come out of the stove, cause product surface dirty; The Mn powder content oozes copper efficient and was descended by 98% former above straight line 4.4% when above, and content arrives at 7% o'clock and ooze copper efficient only 61%, measures 3.9～4.3% so the Mn powder adds.
Ooze in the copper temperature range (1090 ℃-1150 ℃) whole by the present invention's copper seeping agent of producing of filling a prescription, ooze copper efficient＞98%, the powder metallurgy copperized piece surface of production does not have corrosion, the noresidue scum, and the surface exists one deck complete, the MnO that comes off easily
2Skeleton.The powder metallurgy copperized part that adopts the present invention to produce oozes copper process fraction defective＜0.03%, can reduce by 15000 yuan/ton of quality cost and subsequent machining cost than the 25%-35% of common explained hereafter.
Embodiment
The present invention relates to a kind of powder metallurgy copperized agent, it is to adopt Fe powder (100 order) 1.75kg, Cu powder (200 order) 94.25kg to be mixed into the copper seeping agent original washing powder mutually with Mn powder (325 order) 4kg, sneaks into lubricant in use and is molded into the use of copper seeping agent piece.
Its production method is: the material for preparing rotating speed with 19～21r/min in double cone mixer mixes 30～35min.
Claims (2)
1. powder metallurgy copperized agent is characterized in that described copper seeping agent mainly is made up of the raw material of following mass percent:
Fe powder 1.7～2.1%
Mn powder 3.9～4.3%
Cu powder 93.6%～94.4%.
2. a method of producing powder metallurgy copperized agent as claimed in claim 1 is characterized in that: the material rotating speed with 19～21r/min in double cone mixer for preparing is mixed 30～35min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100260189A CN101113511B (en) | 2007-08-13 | 2007-08-13 | Powder metallurgy copperized agent and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100260189A CN101113511B (en) | 2007-08-13 | 2007-08-13 | Powder metallurgy copperized agent and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101113511A CN101113511A (en) | 2008-01-30 |
| CN101113511B true CN101113511B (en) | 2010-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100260189A Expired - Fee Related CN101113511B (en) | 2007-08-13 | 2007-08-13 | Powder metallurgy copperized agent and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101113511B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736285B (en) * | 2008-11-21 | 2011-11-09 | 北京有色金属研究总院 | Copperizing solvent and preparation method thereof |
| CN103668044B (en) * | 2012-09-13 | 2016-06-29 | 苏州铜宝锐新材料有限公司 | One oozes copper cream, its preparation method and application |
| CN103014611A (en) * | 2012-11-22 | 2013-04-03 | 宁波市群星粉末冶金有限公司 | Copper infiltration agent for powder metallurgy and preparation method thereof |
| CN103014610A (en) * | 2012-11-22 | 2013-04-03 | 宁波市群星粉末冶金有限公司 | Copper infiltration agent for powder metallurgy |
-
2007
- 2007-08-13 CN CN2007100260189A patent/CN101113511B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101113511A (en) | 2008-01-30 |
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Granted publication date: 20100818 Termination date: 20140813 |
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