CN104439251A - Copper infiltration agent for powder metallurgy - Google Patents
Copper infiltration agent for powder metallurgy Download PDFInfo
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- CN104439251A CN104439251A CN201410577691.1A CN201410577691A CN104439251A CN 104439251 A CN104439251 A CN 104439251A CN 201410577691 A CN201410577691 A CN 201410577691A CN 104439251 A CN104439251 A CN 104439251A
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- parts
- copper
- powder metallurgy
- infiltration agent
- iron
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- 239000010949 copper Substances 0.000 title claims abstract description 68
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 67
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 230000008595 infiltration Effects 0.000 title claims abstract description 33
- 238000001764 infiltration Methods 0.000 title claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 32
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052742 iron Inorganic materials 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 16
- 239000011651 chromium Substances 0.000 claims abstract description 16
- 239000010703 silicon Substances 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 15
- 239000010941 cobalt Substances 0.000 claims abstract description 15
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 15
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 15
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 15
- 239000011733 molybdenum Substances 0.000 claims abstract description 15
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 15
- 239000011574 phosphorus Substances 0.000 claims abstract description 15
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 14
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 15
- -1 0.7 ~ 1.8 part Chemical compound 0.000 claims description 14
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 9
- 229910052718 tin Inorganic materials 0.000 claims description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 9
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 239000013557 residual solvent Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000012467 final product Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 4
- 238000000280 densification Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012255 powdered metal Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000754 repressing effect Effects 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Abstract
The invention provides a copper infiltration agent for powder metallurgy. The copper infiltration agent comprises, by weight, 93.6 to 94.4 parts of copper, 2.1 to 3.5 parts of iron, 1.4 to 2.7 parts of carbon, 0.7 to 1.8 parts of manganese, 0.4 to 1.5 parts of chromium, 0.2 to 0.9 part of silicon, 0.3 to 1.2 parts of molybdenum, 0.1 to 0.8 part of phosphorus, 0.2 to 0.9 part of cobalt and 0.5 to 1.9 parts of bismuth. The copper infiltration agent for the powder metallurgy has the advantages of being good in forming property, high in infiltration efficiency, free of erosion, low in residual solvent and capable of obviously improving material density and mechanical property.
Description
Technical field
The invention belongs to powdered metallurgical material technical field, be specifically related to a kind of Copper infiltration agent for powder metallurgy.
Background technology
At present, powder metallurgy sintered steel parts due to its low cost, the easily application of feature in industrial production especially automobile mechanical industry of processing more and more extensive, conventional has sintered steel gear, cam, valve seat, exhaust valve seat etc., when these parts are on active service under some rugged environment, require that there is good wearability, resistance to impact, keep higher intensity and hardness again.But adopt the powder metallurgy sintered steel parts that conventional compacting-sintering process manufactures, densifie state completely can not be reached in pressing process, wherein residual hole is the performances such as its tensile strength, impact flexibility, fatigue strength and hardness as a kind of defective effect, cause it not meet instructions for use.Therefore, eliminating or reducing its residual porosity is the most effective way obtaining high compactness, high performance sintered steel, and to ooze copper be exactly a kind of conventional method.Research shows, carries out infiltration obviously can reduce or eliminate hole in sintered steel, improve density, improve its mechanical property and dynamic performance (as impact flexibility, fatigue) etc. with copper or copper alloy powder foot couple sintered steel.Ooze the densification processes such as the more traditional repressing and re-sintering of copper, power forging, temperature and pressure and there is the advantages such as cost is low, operation simple, easy adjustment, therefore this method from last century the forties the U.S. come out since, range of application expanding day, has become at present and has produced the indispensable densification process of high-performance Fe-based powder metallurgy parts.
Powder metallurgy copperized technique is a kind of technique obtaining the powdered metal parts of high density and even densification under common pressing pressure (500 ~ 600MPa).By the impulsive force of the part of this explained hereafter, sealing, the performance such as wearability and machinability far above the technique such as temperature and pressure, repressing and re-sintering, therefore it occupies suitable share in high-end powder metallurgy product.But because the copper that oozes of powder metallurgy carries out the temperature range of 1090 ~ 1150 DEG C, usually 1120 DEG C are got, and be about 3.8 ~ 4% in this temperature range iron solubility in copper, result in and directly ooze copper with Cu block and powdered metal parts, ooze copper efficiency and be about 85%, the surface of part and inside can form corrosion cracking, affect outward appearance and the impact strength of product, and the substandard products which results in (25 ~ 35%) in enormous quantities occur.The mach method of usual employing removes substandard products, which increases processing cost.Therefore the copper seeping agent developed a kind of not corrosion products, do not affect product strength is necessary.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and a kind of Copper infiltration agent for powder metallurgy be provided, this copper seeping agent formability is good, infiltration efficiency is high, non-corrosive, low-residual, density of material and mechanical property can be significantly improved.
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 93.6 ~ 94.4 parts, iron 2.1 ~ 3.5 parts, 1.4 ~ 2.7 parts, carbon, 0.7 ~ 1.8 part, manganese, chromium 0.4 ~ 1.5 part, silicon 0.2 ~ 0.9 part, molybdenum 0.3 ~ 1.2 part, 0.1 ~ 0.8 part, phosphorus, cobalt 0.2 ~ 0.9 part, bismuth 0.5 ~ 1.9 part.
As the further improvement of foregoing invention, described Copper infiltration agent for powder metallurgy also comprises boron 0.3 ~ 0.8 part with parts by weight.
As the further improvement of foregoing invention, described Copper infiltration agent for powder metallurgy also comprises 0.2 ~ 1.1 part, tin with parts by weight.
As the further improvement of foregoing invention, described Copper infiltration agent for powder metallurgy also comprises 0.1 ~ 0.5 part, zinc with parts by weight.
As the further improvement of foregoing invention, Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 94.1 parts, iron 2.9 parts, 1.8 parts, carbon, 1.4 parts, manganese, chromium 0.9 part, silicon 0.6 part, molybdenum 0.8 part, 0.4 part, phosphorus, cobalt 0.6 part, bismuth 1.5 parts, boron 0.7 part, 0.6 part, tin, 0.2 part, zinc.
As the further improvement of foregoing invention, the granularity of described copper, iron, carbon, manganese, chromium, silicon, molybdenum, phosphorus, cobalt, bismuth, boron, tin and zinc is less than 200 orders.
From iron copper phasor, 1120 DEG C time, the solubility of iron in copper is 3.8%, if not iron content in copper seeping agent, when then oozing copper, part copper with the iron generation solid solution in sintered steel matrix, thus can cause erosion to matrix skeleton, crack or aperture, the impact flexibility of oozing copper sintered steel is obviously declined.In order to reduce the erosion of copper, in copper seeping agent, adding a certain amount of iron powder, making copper liquid saturated by iron before infiltration, thus reduce copper liquid to the dissolving of iron in matrix, erosion can be reduced to a certain extent.Carbon dust can form steel matrix with ferroalloy by diffusion, thus increases material hardness, is easy to remove residue.Manganese on the one hand can with copper alloy, can surface tension of liquid be reduced, be easy to away the residue after oozing copper on the other hand, reduce to corrode, improve the mechanical property of oozing copper sintered steel.Appropriate boron powder can improve the iron-density of carbon agglomerated material, intensity, crushing strength, toughness.Chromium can form carbide and alloyed cementite with carbon, thus improves material hardness.Silicon can form high-strength material with manganese, and when oozing copper, silicon and cobalt, chromium, molybdenum etc. form reinforcing particle, thus improves material hardness.Phosphorus can improve the wetability of copper in iron, has fluxing action.Tin can not only improve the mobility of infiltration copper, has obvious facilitation to the infiltration effect of open pores, can also lubricate, increases toughness, reduces the wearing and tearing of material.
Copper seeping agent of the present invention oozes in copper temperature range (1090 ~ 1150 DEG C) whole, and ooze copper efficiency > 98%, the powder metallurgy copperized piece surface of production is corrosion-free, noresidue scum.
Detailed description of the invention
Embodiment 1
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 93.6 parts, iron 2.1 parts, 1.4 parts, carbon, 0.7 part, manganese, chromium 0.4 part, silicon 0.2 part, molybdenum 0.3 part, 0.1 part, phosphorus, cobalt 0.2 part, bismuth 0.5 part.
The granularity of described raw material is less than 200 orders.
Above-mentioned raw materials is mixed 30 ~ 35min with the rotating speed of 19 ~ 21tpm in double cone mixer and get final product.
Embodiment 2
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 94.1 parts, iron 2.8 parts, 1.9 parts, carbon, 1.2 parts, manganese, chromium 0.9 part, silicon 0.5 part, molybdenum 0.8 part, 0.4 part, phosphorus, cobalt 0.7 part, bismuth 1.4 parts.
The granularity of described raw material is less than 200 orders.
Above-mentioned raw materials is mixed 30 ~ 35min with the rotating speed of 19 ~ 21tpm in double cone mixer and get final product.
Embodiment 3
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 94.4 parts, iron 3.5 parts, 2.7 parts, carbon, 1.8 parts, manganese, chromium 1.5 parts, silicon 0.9 part, molybdenum 1.2 parts, 0.8 part, phosphorus, cobalt 0.9 part, bismuth 1.9 parts.
The granularity of described raw material is less than 200 orders.
Above-mentioned raw materials is mixed 30 ~ 35min with the rotating speed of 19 ~ 21tpm in double cone mixer and get final product.
Embodiment 4
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 94.4 parts, iron 3.5 parts, 2.7 parts, carbon, 1.8 parts, manganese, chromium 1.5 parts, silicon 0.9 part, molybdenum 1.2 parts, 0.8 part, phosphorus, cobalt 0.9 part, bismuth 1.9 parts, boron 0.7 part.
The granularity of described raw material is less than 200 orders.
Above-mentioned raw materials is mixed 30 ~ 35min with the rotating speed of 19 ~ 21tpm in double cone mixer and get final product.
Embodiment 5
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 94.1 parts, iron 2.8 parts, 1.9 parts, carbon, 1.2 parts, manganese, chromium 0.9 part, silicon 0.5 part, molybdenum 0.8 part, 0.4 part, phosphorus, cobalt 0.7 part, bismuth 1.4 parts, 0.6 part, tin.
The granularity of described raw material is less than 200 orders.
Above-mentioned raw materials is mixed 30 ~ 35min with the rotating speed of 19 ~ 21tpm in double cone mixer and get final product.
Embodiment 6
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 94.1 parts, iron 2.8 parts, 1.9 parts, carbon, 1.2 parts, manganese, chromium 0.9 part, silicon 0.5 part, molybdenum 0.8 part, 0.4 part, phosphorus, cobalt 0.7 part, bismuth 1.4 parts, 0.3 part, zinc.
The granularity of described raw material is less than 200 orders.
Above-mentioned raw materials is mixed 30 ~ 35min with the rotating speed of 19 ~ 21tpm in double cone mixer and get final product.
Embodiment 7
A kind of Copper infiltration agent for powder metallurgy, comprises with parts by weight: copper 94.1 parts, iron 2.9 parts, 1.8 parts, carbon, 1.4 parts, manganese, chromium 0.9 part, silicon 0.6 part, molybdenum 0.8 part, 0.4 part, phosphorus, cobalt 0.6 part, bismuth 1.5 parts, boron 0.7 part, 0.6 part, tin, 0.2 part, zinc.
The granularity of described raw material is less than 200 orders.
Above-mentioned raw materials is mixed 30 ~ 35min with the rotating speed of 19 ~ 21tpm in double cone mixer and get final product.
Embodiment 1 to 7 gained copper seeping agent and commercially available prod are carried out performance test, and result is as follows:
From upper table result, Copper infiltration agent for powder metallurgy physical property of the present invention and infiltration performance are all better than commercially available prod.
Claims (6)
1. a Copper infiltration agent for powder metallurgy, it is characterized in that: comprise with parts by weight: copper 93.6 ~ 94.4 parts, iron 2.1 ~ 3.5 parts, 1.4 ~ 2.7 parts, carbon, 0.7 ~ 1.8 part, manganese, chromium 0.4 ~ 1.5 part, silicon 0.2 ~ 0.9 part, molybdenum 0.3 ~ 1.2 part, 0.1 ~ 0.8 part, phosphorus, cobalt 0.2 ~ 0.9 part, bismuth 0.5 ~ 1.9 part.
2. Copper infiltration agent for powder metallurgy according to claim 1, is characterized in that: also comprise boron 0.3 ~ 0.8 part with parts by weight.
3. Copper infiltration agent for powder metallurgy according to claim 1, is characterized in that: also comprise 0.2 ~ 1.1 part, tin with parts by weight.
4. Copper infiltration agent for powder metallurgy according to claim 1, is characterized in that: also comprise 0.1 ~ 0.5 part, zinc with parts by weight.
5. Copper infiltration agent for powder metallurgy according to claim 1, is characterized in that: comprise with parts by weight: copper 94.1 parts, iron 2.9 parts, 1.8 parts, carbon, 1.4 parts, manganese, chromium 0.9 part, silicon 0.6 part, molybdenum 0.8 part, 0.4 part, phosphorus, cobalt 0.6 part, bismuth 1.5 parts, boron 0.7 part, 0.6 part, tin, 0.2 part, zinc.
6. Copper infiltration agent for powder metallurgy according to claim 5, is characterized in that: the granularity of described copper, iron, carbon, manganese, chromium, silicon, molybdenum, phosphorus, cobalt, bismuth, boron, tin and zinc is less than 200 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410577691.1A CN104439251B (en) | 2014-10-24 | 2014-10-24 | A kind of Copper infiltration agent for powder metallurgy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410577691.1A CN104439251B (en) | 2014-10-24 | 2014-10-24 | A kind of Copper infiltration agent for powder metallurgy |
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| Publication Number | Publication Date |
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| CN104439251A true CN104439251A (en) | 2015-03-25 |
| CN104439251B CN104439251B (en) | 2016-09-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665716A (en) * | 2016-01-25 | 2016-06-15 | 金华市宇辰粉末冶金有限公司 | Powder metallurgy spiral bevel gear and preparation method and application thereof |
| CN105750552A (en) * | 2016-02-18 | 2016-07-13 | 南京子牙湖合金材料有限公司 | Copper infiltration agent for iron-based powder metallurgy and preparation method thereof |
| CN108637259A (en) * | 2018-04-12 | 2018-10-12 | 金华市宇辰粉末冶金有限公司 | Lower platen and its production method on a kind of powder metallurgy saw blade |
| CN109158593A (en) * | 2018-08-17 | 2019-01-08 | 宁波瑞丰汽车零部件有限公司 | A kind of preparation method of desk connecting bracket |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665716A (en) * | 2016-01-25 | 2016-06-15 | 金华市宇辰粉末冶金有限公司 | Powder metallurgy spiral bevel gear and preparation method and application thereof |
| CN105750552A (en) * | 2016-02-18 | 2016-07-13 | 南京子牙湖合金材料有限公司 | Copper infiltration agent for iron-based powder metallurgy and preparation method thereof |
| CN108637259A (en) * | 2018-04-12 | 2018-10-12 | 金华市宇辰粉末冶金有限公司 | Lower platen and its production method on a kind of powder metallurgy saw blade |
| CN109158593A (en) * | 2018-08-17 | 2019-01-08 | 宁波瑞丰汽车零部件有限公司 | A kind of preparation method of desk connecting bracket |
| CN109158593B (en) * | 2018-08-17 | 2021-04-30 | 宁波瑞丰汽车零部件有限公司 | Preparation method of office table connecting bracket |
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| Publication number | Publication date |
|---|---|
| CN104439251B (en) | 2016-09-28 |
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