CN102251141A - Environment-friendly bearing bush material - Google Patents
Environment-friendly bearing bush material Download PDFInfo
- Publication number
- CN102251141A CN102251141A CN 201110170992 CN201110170992A CN102251141A CN 102251141 A CN102251141 A CN 102251141A CN 201110170992 CN201110170992 CN 201110170992 CN 201110170992 A CN201110170992 A CN 201110170992A CN 102251141 A CN102251141 A CN 102251141A
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- Prior art keywords
- environment
- bearing bush
- sintering
- time
- bush material
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000012254 powdered material Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 238000007747 plating Methods 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 238000005245 sintering Methods 0.000 description 30
- 238000005096 rolling process Methods 0.000 description 14
- 239000010949 copper Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910001096 P alloy Inorganic materials 0.000 description 2
- 229910001229 Pot metal Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention discloses an environment-friendly bearing bush material. In the invention, CuSnAg alloy powder is prepared by replacing Pb with Ag, Fe3P powder is added into the CuSnAg alloy powder to form main alloy powder. The environment-friendly bearing bush material comprises the following materials in percentage by weight: 85 to 95 percent of Cu, 3 to 10 percent of Sn, 0.5 to 5 percent of Ag, and 0.5 to 3 percent of Fe3P. The environment-friendly bearing bush material is free from lead; after the environment-friendly bearing bush material is formed in a bearing bush, the bearing bush can be mounted for use without plating a wear-resistance layer; and thus, environment pollution is avoided.
Description
Technical field
The present invention relates to bush material, particularly a kind of environment-friendly type bush material that is applied to the high-power and high-speed engine.
Background technology
At present, being applied to high-power and high-speed engine bearing material is the pot metal material for sliding bearing mostly.Its plumbous content is up to 17%～27%, is processed into to electroplate the anti-attrition layer use of could installing behind the bearing shell, and is plumbous and electroplate anti-attrition layer and all can cause environmental pollution.Solving the environmental issue of automotive industry, is not only to use clean energy and reduce greenhouse gas emission, the also necessary environmental protection of the component of its use, and the manufacturing processed of component also must not contaminate environment.Based on environmental issue, triggered exploitation of the present invention.
Summary of the invention
The purpose of this invention is to provide a kind of not leaded, the copper base alloy environment-friendly type bush material that need not electroplate anti-attrition layer, can avoid pollution when making it be applied to automobile engine bearing environment.
Purpose of the present invention is realized by following technical scheme:
The present invention substitutes the CuSnAg powdered alloy of Pb preparation with Ag, and adds a certain proportion of Fe
3The P powder forms the bulk alloy powdered material.Because the conformability of Ag, erosion resistance are better than Pb, so replace the bite-resistant performance of the bush material that Pb makes better with Ag.And interpolation Fe
3The purpose of P is for intensity that increases material and hardness, thereby has improved the fatigue strength and the wear resistance of material.The congruent melting of Ag and Cu is fine in addition, and the CuSnAg alloy material metallographic of making can reach the one-level level, and Pb and Cu can not be really molten mutually, and the CuPbSn alloy material of making is easy to generate segregation, and metallographic can only reach two to the level Four level.The CuSnAg-Fe that under identical conditions on the DP type hydraulic pressure dynamic load bearing shell fatigue experimental machine, is done
3The fatigue strength of P alloy material is 160MPa-170MPa, and the fatigue strength of CuPbSn alloy material is 130MPa-150MPa.
Each weight of material per-cent is Cu:85%～95% among the present invention; Sn:3%～10%; Ag:0.5%～5%; Fe
3P:0.5%～3%.
The preferred value of above-mentioned each weight of material per-cent is Cu:91%; Sn:6%; Ag:2%; Fe
3P:1%.
The preparation method of bush material of the present invention: the above-mentioned powdered alloy for preparing is compound on the steel plate with powder sintered rolling technique, forms high-intensity bush material.Technical process is as follows: join powder shop powder (powder being taped against on the steel plate that designs by design weight)
First sintering (800 ℃～900 ℃ of sintering temperatures, 15 minutes～45 minutes time)
Rolling (being rolling to size) for the first time
Sintering (820 ℃～920 ℃ of sintering temperatures, 20 minutes～50 minutes time) for the second time
Rolling (being rolling to the process of regulation) for the second time
Deburring check warehouse-in.
First sintering temperature among the above-mentioned preparation method is got 850 ℃, and the time got 30 minutes; Sintering temperature is got 870 ℃ for the second time, and the time got 35 minutes.
Beneficial effect of the present invention:
Be applied to high-power and high-speed pot metal bush material (CuPb24Sn1, CuPb24Sn4, CuPb20Sn2 etc.) at present, its plumbous content range is 17%～27%, makes and must electroplate the anti-attrition layer use of could installing behind the bearing shell.The present invention substitutes Pb with Ag, and adds Fe
3The bush material that P makes has been realized unleadedly, makes and need not to electroplate the anti-attrition layer use of just can installing behind the bearing shell, has avoided the pollution to environment like this.
CuSnAg-Fe of the present invention
3P alloy material and present CuPbSn alloy material performance comparison table are as follows:
From contrast table as can be seen the present invention compare with present lead-containing materials, its various performances are all more superior.
Embodiment
Manufacturing processed below in conjunction with three kinds of gauge material is further described the present invention.
Preparation work: (1) uses the atomising unit production-100 purpose CuSnAg powdered alloy (Sn:6.26% of preparation copper alloy powder; Ag:0.82%; Surplus Cu).
(2) with the CuSnAg powdered alloy and-320 order Fe that make
3The P powder is prepared in 99: 1 ratio.
(3) standby after two hours (mixed composition is: Sn:6.2% with the abundant batch mixing of mixer with the powder for preparing; Ag:0.81%; Fe
3P:1%; Surplus Cu).
Embodiment 1: produce 1.9 ± 0.03*1.4 ± 0.02*124+3*26 bush material
(1) shop powder: by shop powder amount 5.61 gram per centimeters ready powder being taped against size thickness is that 1.63 ± 0.01mm width is on the steel plate of 131.5mm.
(2) first sintering: sintering temperature is 875 ℃, and sintering time is 25 minutes.Be of a size of 2.55mm～2.57mm behind the sintering.
(3) for the first time rolling: will the plate mill behind oversintering rolling size is 2.26mm～2.27mm.
(4) sintering for the second time: sintering temperature is 885 ℃, and sintering time is 30 fens kinds.
(5) for the second time rolling: the sheet material behind the sintering rolls specified dimension 1.9 ± 0.03mm for the second time.
(6) press 26mm multiple lengths deburring check back warehouse-in.
Embodiment 2: produce 2.55 ± 0.03*2.2 ± 0.02*134*31.2 bush material
(1) shop powder: by shop powder amount 4.81 gram per centimeters ready powder being taped against size thickness is on the steel plate of 142mm for the 2.44mm width.
(2) first sintering: sintering temperature is 880 ℃, and sintering time is 30 minutes.Be of a size of 3.18mm～3.21mm behind the sintering.
(3) for the first time rolling: will the plate mill behind oversintering rolling size is 2.94mm～2.96.mm.
(4) sintering for the second time: sintering temperature is 885 ℃, and sintering time is 35 fens kinds.
(5) for the second time rolling: the sheet material behind the sintering rolls specified dimension 2.55mm ± 0.03mm for the second time.
(6) press 31.2mm multiple lengths deburring check back warehouse-in.
Embodiment 3: produce the 1.88*1.55*99*32 bush material
(1) shop powder: by shop powder amount 3.15 gram per centimeters ready powder being taped against size thickness is on the steel plate of 103mm for the 1.69mm width.
(2) first sintering: sintering temperature is 870 ℃, and sintering time is 25 minutes.Be of a size of 2.37mm～2.39mm behind the sintering.
(3) for the first time rolling: will the plate mill behind oversintering rolling size is 2.14mm～2.15.mm.
(4) sintering for the second time: sintering temperature is 880 ℃, and sintering time is 30 fens kinds.
(5) for the second time rolling: the sheet material behind the sintering rolls specified dimension 1.88 ± 0.02mm for the second time.
(6) press 32mm multiple lengths deburring check back warehouse-in.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.If of the present invention these are revised and modification belongs to the scope of basic design of the present invention or equivalent technologies, then the present invention also should comprise these changes and modification interior.
If the content that is not described in detail is arranged, should be those skilled in the art's technique known in this specification sheets, repeat no more herein.
Claims (2)
1. environment-friendly type bush material is characterized in that: it is the CuSnAg powdered alloy that substitutes the Pb preparation with Ag, and adds Fe
3The P powder forms the bulk alloy powdered material, and the weight percent of its each material is Cu:85%～95%; Sn:3%～10%; Ag:0.5%～5%; Fe
3P:0.5%～3%.
2. environment-friendly type bush material as claimed in claim 1 is characterized in that: the preferred value of above-mentioned each weight of material per-cent is Cu:91%; Sn:6%; Ag:2%; Fe
3P:1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110170992 CN102251141B (en) | 2011-06-23 | 2011-06-23 | Environment-friendly bearing bush material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110170992 CN102251141B (en) | 2011-06-23 | 2011-06-23 | Environment-friendly bearing bush material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102251141A true CN102251141A (en) | 2011-11-23 |
| CN102251141B CN102251141B (en) | 2013-02-13 |
Family
ID=44978706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110170992 Expired - Fee Related CN102251141B (en) | 2011-06-23 | 2011-06-23 | Environment-friendly bearing bush material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102251141B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130135A (en) * | 2016-02-29 | 2017-09-05 | 金华市程凯合金材料有限公司 | A kind of water atomization manufacture method of the super performance copper alloy powder of argentiferous |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688268A (en) * | 2007-05-15 | 2010-03-31 | 大丰工业株式会社 | Pb-free copper alloy sliding material and plain bearings |
| CN101801567A (en) * | 2007-07-31 | 2010-08-11 | 费德罗-莫格尔公司 | Wear resistant lead free alloy bushing and method of making |
-
2011
- 2011-06-23 CN CN 201110170992 patent/CN102251141B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688268A (en) * | 2007-05-15 | 2010-03-31 | 大丰工业株式会社 | Pb-free copper alloy sliding material and plain bearings |
| CN101801567A (en) * | 2007-07-31 | 2010-08-11 | 费德罗-莫格尔公司 | Wear resistant lead free alloy bushing and method of making |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130135A (en) * | 2016-02-29 | 2017-09-05 | 金华市程凯合金材料有限公司 | A kind of water atomization manufacture method of the super performance copper alloy powder of argentiferous |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102251141B (en) | 2013-02-13 |
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Owner name: WUHAN JINHETAI NEW MATERIAL CO., LTD. Free format text: FORMER OWNER: CHEN XUPING Effective date: 20130910 |
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Effective date of registration: 20130910 Address after: 430056, Wuhan economic and Technological Development Zone, Hubei, east central two, No., building 5, No. 508 Patentee after: Wuhan Jin Hetai New Material Co., Ltd. Address before: 430056, Hubei Wuhan Wuhan economic and Technological Development Zone hi tech Industrial Park three phase seven building Jintai bearing material Co., Ltd. Patentee before: Chen Xuping |
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Granted publication date: 20130213 Termination date: 20180623 |