CN104439251B - A kind of Copper infiltration agent for powder metallurgy - Google Patents
A kind of Copper infiltration agent for powder metallurgy Download PDFInfo
- Publication number
- CN104439251B CN104439251B CN201410577691.1A CN201410577691A CN104439251B CN 104439251 B CN104439251 B CN 104439251B CN 201410577691 A CN201410577691 A CN 201410577691A CN 104439251 B CN104439251 B CN 104439251B
- Authority
- CN
- China
- Prior art keywords
- parts
- copper
- powder metallurgy
- infiltration agent
- ferrum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 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
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 33
- 230000008595 infiltration Effects 0.000 title claims abstract description 32
- 238000001764 infiltration Methods 0.000 title claims abstract description 32
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 14
- 239000011651 chromium Substances 0.000 claims abstract description 14
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 13
- 239000010941 cobalt Substances 0.000 claims abstract description 13
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 239000011733 molybdenum Substances 0.000 claims abstract description 13
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 13
- 239000011574 phosphorus Substances 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 12
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 12
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 239000011572 manganese Substances 0.000 claims abstract description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 9
- 230000009972 noncorrosive effect Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000012467 final product Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000011159 matrix material Chemical group 0.000 description 4
- 238000000280 densification Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 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 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
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000012255 powdered metal Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000754 repressing effect Effects 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 241000316986 Scutellathous comes Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 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
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 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
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 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
- 238000012545 processing Methods 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
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention provides a kind of Copper infiltration agent for powder metallurgy, described copper seeping agent includes in parts by weight: copper 93.6～94.4 parts, ferrum 2.1～3.5 parts, carbon 1.4～2.7 parts, manganese 0.7～1.8 parts, chromium 0.4～1.5 parts, silicon 0.2～0.9 part, molybdenum 0.3～1.2 parts, phosphorus 0.1～0.8 part, cobalt 0.2～0.9 part, bismuth 0.5～1.9 parts.Copper seeping agent of the present invention has that formability is good, infiltration efficiency is high, non-corrosive, low-residual, significantly improve the feature of density of material 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 are owing to its low cost, the easy feature processed are at commercial production especially vapour
Application in car mechanical industry is more and more extensive, and conventional have sintered steel gear, cam, valve seat, an exhaust valve seat etc., these zero
When part is on active service under some rugged environment, it is desirable to there is good wearability, resistance to impact, keep again higher intensity and
Hardness.But the powder metallurgy sintered steel parts using conventional compacting-sintering process to manufacture, can not reach in pressing process
Densifie state completely, the hole wherein remained is its tensile strength, impact flexibility, fatigue strength as a kind of defective effect
With performances such as hardness, cause it can not meet use requirement.Therefore, eliminate or reduce its residual porosity be obtain high compactness,
The most effective approach of high performance sintered steel, and oozing copper is exactly a kind of conventional method.Research shows, by copper or copper alloy powder foot couple
Sintered steel carries out hole that infiltration can significantly reduce or eliminate in sintered steel, improves density, improves its mechanical property and kinetics
Performance (such as impact flexibility, fatigue) etc..Ooze the densification processes such as the more traditional repressing and re-sintering of copper, power forging, temperature and pressure to have into
The advantages such as this low, operation is simple, easy adjustment, the most this method since the U.S. comes out, has applied model from the forties in last century
Enclose expanding day, the most become and produced the densification process that high-performance Fe-based powder metallurgy parts are indispensable.
Powder metallurgy copperized technique is a kind of acquisition high density or even densification under common pressing pressure (500～600MPa)
The technique of powdered metal parts.The property such as the impulsive force of part, sealing, wearability and the machinability produced by this technique
Can be 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 due to powder
What end was metallurgical ooze, and copper is carries out the temperature range of 1090～1150 DEG C, generally takes 1120 DEG C, and at this temperature range ferrum at copper
Middle dissolubility is about 3.8～4%, result in and directly oozes copper with Cu block and powdered metal parts, oozes copper efficiency and be about 85%, part
Surface and inside can form corrosion cracking, affect outward appearance and the impact strength of product, which results in high volume (25～35%)
Substandard products occur.Generally use mach method to remove substandard products, which increase processing cost.It is therefore desirable to exploitation one is not
Corrosion products, do not affect the copper seeping agent of product strength.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art to provide a kind of Copper infiltration agent for powder metallurgy, this copper seeping agent becomes
Shape is good, infiltration efficiency is high, non-corrosive, low-residual, can significantly improve density of material and mechanical property.
A kind of Copper infiltration agent for powder metallurgy, includes: copper 93.6～94.4 parts, ferrum 2.1～3.5 parts, carbon 1.4 in parts by weight
～2.7 parts, manganese 0.7～1.8 parts, chromium 0.4～1.5 parts, silicon 0.2～0.9 part, molybdenum 0.3～1.2 parts, phosphorus 0.1～0.8 part, cobalt
0.2～0.9 part, bismuth 0.5～1.9 parts.
As the further improvement of foregoing invention, described Copper infiltration agent for powder metallurgy the most also include boron 0.3～
0.8 part.
As the further improvement of foregoing invention, described Copper infiltration agent for powder metallurgy the most also include stannum 0.2～
1.1 part.
As the further improvement of foregoing invention, described Copper infiltration agent for powder metallurgy the most also include zinc 0.1～
0.5 part.
As the further improvement of foregoing invention, Copper infiltration agent for powder metallurgy, include in parts by weight: copper 94.1 parts, ferrum
2.9 parts, 1.8 parts of carbon, 1.4 parts of manganese, chromium 0.9 part, silicon 0.6 part, molybdenum 0.8 part, 0.4 part of phosphorus, cobalt 0.6 part, bismuth 1.5 parts, boron 0.7
Part, 0.6 part of stannum, 0.2 part of zinc.
As the further improvement of foregoing invention, described copper, ferrum, carbon, manganese, chromium, silicon, molybdenum, phosphorus, cobalt, bismuth, boron, stannum and zinc
Granularity less than 200 mesh.
From ferrum copper phasor, when 1120 DEG C, ferrum dissolubility in copper is 3.8%, if not iron content in copper seeping agent,
When then oozing copper, matrix skeleton with the ferrum generation solid solution in sintered steel matrix, thus can be caused erosion by part copper, crack or
Aperture so that the impact flexibility oozing copper sintered steel is decreased obviously.In order to reduce the erosion of copper, add a certain amount of in copper seeping agent
Iron powder, makes copper liquid saturated by ferrum before infiltration, thus reduces copper liquid to the dissolving of ferrum in matrix, can reduce to a certain extent
Corrode.Carbon dust can form steel matrix with ferroalloy by diffusion, thus increases material hardness, it is easy to removes residue.Manganese one side
Face can be with copper alloy, it is possible to decrease surface tension of liquid, is on the other hand prone to away the residue after oozing copper, reduces and corrodes, carries
Height oozes the mechanical property of copper sintered steel.Appropriate boron powder can improve the ferrum-density of carbon sintered material, intensity, crushing strength, tough
Property.Chromium can form carbide and alloyed cementite with carbon, thus improves material hardness.Silicon can form high-strength material with manganese,
When oozing copper, silicon forms reinforcing particle with cobalt, chromium, molybdenum etc., thus improves material hardness.Phosphorus can improve copper wettability in ferrum,
There is fluxing action.Stannum can not only improve the mobility of infiltration copper, and the infiltration effect to open pores has the effect of being obviously promoted, also
Lubrication can be played, increase toughness, reduce the abrasion of material.
The copper seeping agent of the present invention oozes in copper temperature range (1090～1150 DEG C) whole, oozes copper efficiency ＞ 98%, produces
Powder metallurgy copperized piece surface corrosion-free, noresidue scum.
Detailed description of the invention
Embodiment 1
A kind of Copper infiltration agent for powder metallurgy, includes: copper 93.6 parts, ferrum 2.1 parts, 1.4 parts of carbon, 0.7 part of manganese in parts by weight,
Chromium 0.4 part, silicon 0.2 part, molybdenum 0.3 part, 0.1 part of phosphorus, cobalt 0.2 part, bismuth 0.5 part.
The granularity of described raw material is less than 200 mesh.
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, includes: copper 94.1 parts, ferrum 2.8 parts, 1.9 parts of carbon, 1.2 parts of manganese in parts by weight,
Chromium 0.9 part, silicon 0.5 part, molybdenum 0.8 part, 0.4 part of phosphorus, cobalt 0.7 part, bismuth 1.4 parts.
The granularity of described raw material is less than 200 mesh.
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, includes: copper 94.4 parts, ferrum 3.5 parts, 2.7 parts of carbon, 1.8 parts of manganese in parts by weight,
Chromium 1.5 parts, silicon 0.9 part, molybdenum 1.2 parts, 0.8 part of phosphorus, cobalt 0.9 part, bismuth 1.9 parts.
The granularity of described raw material is less than 200 mesh.
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, includes: copper 94.4 parts, ferrum 3.5 parts, 2.7 parts of carbon, 1.8 parts of manganese in parts by weight,
Chromium 1.5 parts, silicon 0.9 part, molybdenum 1.2 parts, 0.8 part of phosphorus, cobalt 0.9 part, bismuth 1.9 parts, boron 0.7 part.
The granularity of described raw material is less than 200 mesh.
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, includes: copper 94.1 parts, ferrum 2.8 parts, 1.9 parts of carbon, 1.2 parts of manganese in parts by weight,
Chromium 0.9 part, silicon 0.5 part, molybdenum 0.8 part, 0.4 part of phosphorus, cobalt 0.7 part, bismuth 1.4 parts, 0.6 part of stannum.
The granularity of described raw material is less than 200 mesh.
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, includes: copper 94.1 parts, ferrum 2.8 parts, 1.9 parts of carbon, 1.2 parts of manganese in parts by weight,
Chromium 0.9 part, silicon 0.5 part, molybdenum 0.8 part, 0.4 part of phosphorus, cobalt 0.7 part, bismuth 1.4 parts, 0.3 part of zinc.
The granularity of described raw material is less than 200 mesh.
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, includes: copper 94.1 parts, ferrum 2.9 parts, 1.8 parts of carbon, 1.4 parts of manganese in parts by weight,
Chromium 0.9 part, silicon 0.6 part, molybdenum 0.8 part, 0.4 part of phosphorus, cobalt 0.6 part, bismuth 1.5 parts, boron 0.7 part, 0.6 part of stannum, 0.2 part of zinc.
The granularity of described raw material is less than 200 mesh.
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 and the infiltration performance of the present invention are superior to commercially available prod.
Claims (4)
1. a Copper infiltration agent for powder metallurgy, it is characterised in that: include in parts by weight: copper 93.6～94.4 parts, ferrum 2.1～
3.5 parts, carbon 1.4～2.7 parts, manganese 0.7～1.8 parts, chromium 0.4～1.5 parts, silicon 0.2～0.9 part, molybdenum 0.3～1.2 parts, phosphorus 0.1
～0.8 part, cobalt 0.2～0.9 part, bismuth 0.5～1.9 parts.
Copper infiltration agent for powder metallurgy the most according to claim 1, it is characterised in that: described Copper infiltration agent for powder metallurgy is with weight
Amount part meter also includes boron 0.3～0.8 part.
Copper infiltration agent for powder metallurgy the most according to claim 1, it is characterised in that: described Copper infiltration agent for powder metallurgy is with weight
Amount part meter also includes stannum 0.2～1.1 parts.
Copper infiltration agent for powder metallurgy the most according to claim 1, it is characterised in that: described Copper infiltration agent for powder metallurgy is with weight
Amount part meter also includes zinc 0.1～0.5 part.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104439251A CN104439251A (en) | 2015-03-25 |
| CN104439251B true CN104439251B (en) | 2016-09-28 |
Family
ID=52886441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410577691.1A Active CN104439251B (en) | 2014-10-24 | 2014-10-24 | A kind of Copper infiltration agent for powder metallurgy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104439251B (en) |
Families Citing this family (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 |
| CN108637259B (en) * | 2018-04-12 | 2020-04-14 | 金华市宇辰粉末冶金有限公司 | Powder metallurgy saw blade upper and lower pressing plates and production method thereof |
| 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6551373B2 (en) * | 2000-05-11 | 2003-04-22 | Ntn Corporation | Copper infiltrated ferro-phosphorous powder metal |
| US7341093B2 (en) * | 2005-02-11 | 2008-03-11 | Llc 2 Holdings Limited, Llc | Copper-based alloys and their use for infiltration of powder metal parts |
| CN100441711C (en) * | 2006-08-09 | 2008-12-10 | 海门市常乐粉末冶金厂 | Manufacture method of high-strength powder metallurgy bevel gear and copper seeping agent for the same |
| JP4857206B2 (en) * | 2007-06-29 | 2012-01-18 | 福田金属箔粉工業株式会社 | Infiltration powder |
| CN101736285B (en) * | 2008-11-21 | 2011-11-09 | 北京有色金属研究总院 | Copperizing solvent and preparation method thereof |
| CN101961789A (en) * | 2010-10-15 | 2011-02-02 | 苏州莱特复合材料有限公司 | Process for manufacturing cylinder block blank of powder metallurgy plunger pump |
| 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 |
| 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 |
-
2014
- 2014-10-24 CN CN201410577691.1A patent/CN104439251B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104439251A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104439251B (en) | A kind of Copper infiltration agent for powder metallurgy | |
| CN103526134B (en) | A kind of High-performance powder metallurgy valve retainer material | |
| CN100441711C (en) | Manufacture method of high-strength powder metallurgy bevel gear and copper seeping agent for the same | |
| JP2012520942A5 (en) | ||
| CN104372254B (en) | Silicon-carbide-particle-reinforced iron-base composite material and preparation method thereof | |
| CN101809180A (en) | Metallurgical powder composition and method of production | |
| CN103572163A (en) | Powder-metallurgy valve seat insert and preparation method thereof | |
| CN101829785A (en) | Sintering diffusion method for preparing iron-based surface composite material | |
| CN105673806A (en) | High-density and high-strength planet gear | |
| CN103556056B (en) | Electric control vibration damper valve seat of vehicle | |
| CN104372234A (en) | High-wear-resistance titanium-copper nickel-silicon alloy composite material and preparation method thereof | |
| CN1676654A (en) | Stainless steel powder composite material and its warm-pressing method | |
| CN104561807A (en) | Silicon-carbide-whisker-reinforced iron-base composite material and preparation method thereof | |
| CN102605289B (en) | Fire grate strip of sintering machine and manufacturing method of fire grate strip | |
| CN104907554A (en) | Powder material for powder metallurgy, preparation method thereof and application thereof | |
| Bhaskar Raju et al. | Mechanical and Tribological Behaviour of Aluminium Metal Matrix Composites using Powder Metallurgy Technique—A Review. | |
| CN104120314A (en) | High-damping MnCu alloy and powdery metallurgy preparation technology thereof | |
| CN104550905B (en) | A kind of high infiltration copper powder and preparation method thereof | |
| JP6528899B2 (en) | Method of manufacturing mixed powder and sintered body for powder metallurgy | |
| JP5929084B2 (en) | Alloy steel powder for powder metallurgy, iron-based sintered material and method for producing the same | |
| CN104264061B (en) | A kind of automobile engine forging and forging method thereof | |
| CN105154710A (en) | Friction-resisting nitrogen-phosphor composite copper-based powder metallurgy material and preparation method thereof | |
| CN107663597A (en) | A kind of aluminium bronze axle sleeve of high intensity | |
| CN102766795A (en) | Non-magnetic die material and production method thereof | |
| CN102994899A (en) | Production method of low-alloy chromium-containing powder metallurgy steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xu Inventor before: Liu Li Inventor before: Wang Shuang Inventor before: Liu Xiaodong |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160822 Address after: 266000 Shandong province Qingdao City, Shandong Road No. 109 Building No. 3 3102 Taiwan Jing Applicant after: QINGDAO JINZHI HIGH AND NEW TECHNOLOGY CO., LTD. Address before: 215009 Suzhou high tech Zone, Jiangsu Torch Road, No. 56 Applicant before: Suzhou NetShape Composite Materials Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jianzhong Inventor after: Zeng Dongyun Inventor after: Guo Jiang Inventor before: Wang Xu |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180223 Address after: 402284 de Jie street, Jiangjin District, Chongqing City, No. 339 Patentee after: Chongqing Jiangzhou Powder Metallurgy Technology Co., Ltd. Address before: 266000 Shandong province Qingdao City, Shandong Road No. 109 Building No. 3 3102 Taiwan Jing Patentee before: QINGDAO JINZHI HIGH AND NEW TECHNOLOGY CO., LTD. |