CN108642319A - A kind of continuously casting Cu alloy material and its manufacturing method for wear-resistant gear - Google Patents
A kind of continuously casting Cu alloy material and its manufacturing method for wear-resistant gear Download PDFInfo
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- CN108642319A CN108642319A CN201810540210.8A CN201810540210A CN108642319A CN 108642319 A CN108642319 A CN 108642319A CN 201810540210 A CN201810540210 A CN 201810540210A CN 108642319 A CN108642319 A CN 108642319A
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- alloy
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- silicon carbide
- aluminium oxide
- continuously casting
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
Abstract
The invention discloses a kind of continuously casting Cu alloy materials and its manufacturing method for wear-resistant gear, are grouped as by the group of following mass percent：Zinc 1 2%, tin 2 3%, bismuth 2 3%, antimony 0.5 1%, silicon carbide 0.4 0.6%, aluminium oxide 0.4 0.7% and surplus are copper.In the case where not increasing cost, there are the cutting ability and hardness for further improving alloy in the requirement for meeting the environmental-protecting performance of right alloy while, more suitable for the wear-resisting spare part of high temperature (400 degree) situation.
Description
Technical field
The present invention relates to field of alloy material, more particularly to a kind of continuously casting Cu alloy materials for wear-resistant gear
And its manufacturing method.
Background technology
Existing tin bronze material is in order to realize that its easy chip performance often adds lead element, with environmental consciousness
It significantly improves, the bell metal containing lead element cannot meet the requirement of domestic and international high-end market.
Therefore, a kind of both environmentally friendly there is an urgent need for designing, and cutting ability and the excellent copper alloy of hardness.
Invention content
For the above defect of the existing technology, it is a primary object of the present invention to overcome the deficiencies in the prior art it
Place, discloses a kind of continuously casting Cu alloy material for wear-resistant gear, is grouped as by the group of following mass percent：Zinc
1-2%, tin 2-3%, bismuth 2-3%, antimony 0.5-1%, silicon carbide 0.4-0.6%, aluminium oxide 0.4-0.7% and surplus are copper.
Further, it is grouped as by the group of following weight percent：Zinc 1.5%, tin 2.5%, bismuth 2.5%, antimony
0.75%, silicon carbide 0.5%, aluminium oxide 0.5% and surplus are copper.
Further, it is grouped as by the group of following weight percent：Zinc 1.7%, tin 2.7%, bismuth 2.7%, antimony 0.8%,
Silicon carbide 0.55%, aluminium oxide 0.6% and surplus are copper.
A kind of manufacturing method of continuously casting Cu alloy material for wear-resistant gear provided by the invention, feature exist
In having steps of：
1) electricity Xie Tong ﹑ Xi ﹑ zinc and antimony is placed in main frequency furnace according to proportioning, be heated to 1200 DEG C be completely melt after protect
Temperature is to 1050 DEG C；
2) it after being sufficiently stirred the alloy liquid being completely melt with graphite tool, is kept the temperature；
3) after soaking time 1-1.5 hours, composition detection is carried out to the copper alloy water that melting is completed, to determine its alloy
Ingredient is within prescribed limit；
4) proportionally Bi ﹑ Tanization Gui ﹑ aluminium oxide is positioned in crucible furnace simultaneously and is heated, graphite rod is used in combination to be stirred
It mixes, mixing speed 300r/Min promotes silicon carbide to be evenly distributed in the solution of bismuth, and 20-30 is kept the temperature after the completion of stirring
Minute；
5) solution of silicon carbide, bismuth and aluminium oxide after the completion of heat preservation is added in the copper alloy that heat preservation is completed, again
It is stirred with graphite rod, mixing speed is 400r/Min and is heated up to 1300-1350 DEG C；And sample and chemically examined, determine it
Chemical composition is within desired extent；
6) solution for taking ingredient qualification waits for polishing after its solidification, determines that its grain structure is uniform by microscope, with
This determines that silicon carbide is evenly distributed in alloy；
7) after keeping the temperature 20-30 minutes, temperature is readjusted to 1250 DEG C, and open the vibrating device of main frequency furnace, vibrate
Frequency is 10 times/second；Hollow alloy pipe is made in copper alloy solution casting according to respective specified；
8) surface turning is carried out to compo pipe with smooth turning lathe, tolerance is the product of +/- 0.1mm any surface finish；And it is right
Packaging and storage after the both ends deburring of compo pipe.
Further, it in step 2), after the completion of graphite tool stirs the alloy liquid of thawing, covers in the above
High purity graphite, thickness 3-5cm.
Further, 3-5 sub-sampling inspections are carried out to the copper alloy water in stove by Spike direct-reading spectrometer in step 3)
It surveys.
Further, silicon carbide described in step 4) and the aluminium oxide are graininess, and the grain size of the silicon carbide
Between 50-100 μm, the grain size of the aluminium oxide is between 50-100 μm, in addition, the purity of bismuth is more than or equal to 99.99%.
Further, the heating temperature in crucible furnace described in step 4) is at 360-400 DEG C, heating time 50-
60min。
Further, it is detected under the microscope of 400 times and 800 times of metallographic instrument respectively in step 6).
Further, use horizontal continuous casting method casting that outer diameter is made as ￠ 25mm to ￠ 300mm in step 7), internal diameter is
￠ 10 to ￠ 250mm, length are the hollow alloy pipe of 500mm.
The advantageous effect that the present invention obtains：
Traditional lead element is replaced with into bismuth element, and adds nanometer silicon carbide material, according to certain composition proportion,
Temperature appropriate, by the high tenacity and high rigidity of cold rise pyrocondensation performance and the nanometer silicon carbide and alumina material of bismuth to
It produces and is fully able to replace the tin bronze containing lead element.The invention meets right be somebody's turn to do in the case where not increasing cost
There are the cutting ability and hardness for further improving alloy while the requirement of the environmental-protecting performance of alloy, more suitable for high temperature
The wear-resisting spare part of (400 degree) situation.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiment to the present invention
It is described in further detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
Embodiment one
According to mass percent be zinc 1%, tin 2%, bismuth 23%, antimony 0.5%, silicon carbide 0.4%, aluminium oxide 0.4% with
And the copper of surplus weighs these raw materials.
1) Tong ﹑ Xi ﹑ zinc and antimony are placed in main frequency furnace according to proportioning, 1200 DEG C of degree of being heated to is kept the temperature after being completely melt
To 1050 DEG C；
2) after the alloy liquid being completely melt being sufficiently stirred with graphite tool, cover high purity graphite, thickness in the above
For 3cm, and kept the temperature；It prevents copper alloy water from aoxidizing by covering high purity graphite, influences product quality.
3) soaking time carries out 3 sub-samplings simultaneously by Spike direct-reading spectrometer after 1 hour to the copper alloy water in stove
Composition detection is carried out to sample, to determine its alloying component within prescribed limit；
4) proportionally Bi ﹑ Tanization Gui ﹑ aluminium oxide is positioned in crucible furnace and is heated simultaneously, heating temperature at 360 DEG C,
Heating time is 50min and is stirred with graphite rod that mixing speed 300r/Min promotes silicon carbide to be evenly distributed in
In the solution of bismuth, heat preservation 20 minutes after the completion of stirring；Wherein, silicon carbide and aluminium oxide are graininess, and the grain of silicon carbide
Diameter is between 50-100 μm, and the grain size of aluminium oxide is between 50-100 μm, in addition, the purity of bismuth is more than or equal to 99.99%.
5) solution of silicon carbide, bismuth and aluminium oxide after the completion of heat preservation is added in the copper alloy that heat preservation is completed, again
It is stirred with graphite rod, mixing speed is 400r/Min and is heated up to 1300 DEG C；And sample and chemically examined, determine its chemistry
Ingredient is within desired extent；
6) solution for taking ingredient qualification waits for polishing after its solidification, respectively in showing in 400 times and 800 times of metallographic instrument
It under micro mirror, determines that its grain structure is uniform, determines that silicon carbide is evenly distributed in alloy with this；
7) heat preservation after twenty minutes, readjusts temperature to 1250 DEG C, and open the vibrating device of main frequency furnace, vibration frequency
Rate is 10 times/second；Use horizontal continuous casting method casting that outer diameter is made as ￠ 25mm to ￠ 300mm, internal diameter is ￠ 10 to ￠ 250mm
Length is the hollow alloy pipe of 500mm；
8) surface turning is carried out to compo pipe with smooth turning lathe, tolerance is the product of +/- 0.1mm any surface finish；And it is right
Packaging and storage after the both ends deburring of compo pipe.
The performance comparison table of the preparation-obtained Cu alloy material of the method according to the invention and traditional material material is such as
Under：
Table 1
Embodiment two
It is zinc 1.5%, tin 2.5%, bismuth 2.5%, antimony 0.75%, silicon carbide 0.5%, aluminium oxide according to mass percent
0.5% and the copper of surplus weigh these raw materials.
1) Tong ﹑ Xi ﹑ zinc and antimony are placed in main frequency furnace according to proportioning, 1200 DEG C of degree of being heated to is kept the temperature after being completely melt
To 1050 DEG C；
2) after the alloy liquid being completely melt being sufficiently stirred with graphite tool, cover high purity graphite, thickness in the above
For 4cm, and kept the temperature；
3) soaking time carries out 4 sub-samplings by Spike direct-reading spectrometer after 1.2 hours to the copper alloy water in stove
And composition detection is carried out to sample, to determine its alloying component within prescribed limit；
4) proportionally Bi ﹑ Tanization Gui ﹑ aluminium oxide is positioned in crucible furnace and is heated simultaneously, heating temperature at 370 DEG C,
Heating time is 52min and is stirred with graphite rod that mixing speed 300r/Min promotes silicon carbide to be evenly distributed in
In the solution of bismuth, heat preservation 22 minutes after the completion of stirring；Wherein, silicon carbide and aluminium oxide are graininess, and the grain of silicon carbide
Diameter is between 50-100 μm, and the grain size of aluminium oxide is between 50-100 μm, in addition, the purity of bismuth is more than or equal to 99.99%.
5) solution of silicon carbide, bismuth and aluminium oxide after the completion of heat preservation is added in the copper alloy that heat preservation is completed, again
It is stirred with graphite rod, mixing speed is 400r/Min and is heated up to 1310 DEG C；And sample and chemically examined, determine its chemistry
Ingredient is within desired extent；
6) solution for taking ingredient qualification waits for polishing after its solidification, respectively in showing in 400 times and 800 times of metallographic instrument
It under micro mirror, determines that its grain structure is uniform, determines that silicon carbide is evenly distributed in alloy with this；
7) after keeping the temperature 20-30 minutes, temperature is readjusted to 1250 DEG C, and open the vibrating device of main frequency furnace, vibrate
Frequency is 10 times/second；Use horizontal continuous casting method casting that outer diameter is made as ￠ 25mm to ￠ 300mm, internal diameter is ￠ 10 to ￠
250mm length is the hollow alloy pipe of 500mm；
8) surface turning is carried out to compo pipe with smooth turning lathe, tolerance is the product of +/- 0.1mm any surface finish；And it is right
Packaging and storage after the both ends deburring of compo pipe.
The performance comparison table of the preparation-obtained Cu alloy material of the method according to the invention and traditional material material is such as
Under：
Table 2
Embodiment three
It is zinc 1.7%, tin 2.7%, bismuth 2.7%, antimony 0.8%, silicon carbide 0.55%, aluminium oxide according to mass percent
0.6% and the copper of surplus weigh these raw materials.
1) Tong ﹑ Xi ﹑ zinc and antimony are placed in main frequency furnace according to proportioning, 1200 DEG C of degree of being heated to is kept the temperature after being completely melt
To 1050 DEG C；
2) after the alloy liquid being completely melt being sufficiently stirred with graphite tool, cover high purity graphite, thickness in the above
For 4cm, and kept the temperature；
3) soaking time carries out 4 sub-samplings by Spike direct-reading spectrometer after 1.4 hours to the copper alloy water in stove
And composition detection is carried out to sample, to determine its alloying component within prescribed limit；
4) proportionally Bi ﹑ Tanization Gui ﹑ aluminium oxide is positioned in crucible furnace and is heated simultaneously, heating temperature at 380 DEG C,
Heating time is 55min and is stirred with graphite rod that mixing speed 300r/Min promotes silicon carbide to be evenly distributed in
In the solution of bismuth, heat preservation 26 minutes after the completion of stirring；Wherein, silicon carbide and aluminium oxide are graininess, and the grain of silicon carbide
Diameter is between 50-100 μm, and the grain size of aluminium oxide is between 50-100 μm, in addition, the purity of bismuth is more than or equal to 99.99%.
5) solution of silicon carbide, bismuth and aluminium oxide after the completion of heat preservation is added in the copper alloy that heat preservation is completed, again
It is stirred with graphite rod, mixing speed is 400r/Min and is heated up to 1330 DEG C；And sample and chemically examined, determine its chemistry
Ingredient is within desired extent；
6) solution for taking ingredient qualification waits for polishing after its solidification, respectively in showing in 400 times and 800 times of metallographic instrument
It under micro mirror, determines that its grain structure is uniform, determines that silicon carbide is evenly distributed in alloy with this；
7) after keeping the temperature 26 minutes, temperature is readjusted to 1250 DEG C, and open the vibrating device of main frequency furnace, vibration frequency
Rate is 10 times/second；Use horizontal continuous casting method casting that outer diameter is made as ￠ 25mm to ￠ 300mm, internal diameter is ￠ 10 to ￠ 250mm
Length is the hollow alloy pipe of 500mm；
8) surface turning is carried out to compo pipe with smooth turning lathe, tolerance is the product of +/- 0.1mm any surface finish；And it is right
Packaging and storage after the both ends deburring of compo pipe.
The performance comparison table of the preparation-obtained Cu alloy material of the method according to the invention and traditional material material is such as
Under：
Table 3
Example IV
According to mass percent be zinc 2%, tin 3%, bismuth 3%, antimony 1%, silicon carbide 0.6%, aluminium oxide 0.7% and
The copper of surplus weighs these raw materials.
1) Tong ﹑ Xi ﹑ zinc and antimony are placed in main frequency furnace according to proportioning, 1200 DEG C of degree of being heated to is kept the temperature after being completely melt
To 1050 DEG C；
2) after the alloy liquid being completely melt being sufficiently stirred with graphite tool, cover high purity graphite, thickness in the above
For 5cm, and kept the temperature；
3) soaking time carries out 5 sub-samplings by Spike direct-reading spectrometer after 1.5 hours to the copper alloy water in stove
And composition detection is carried out to sample, to determine its alloying component within prescribed limit；
4) proportionally Bi ﹑ Tanization Gui ﹑ aluminium oxide is positioned in crucible furnace and is heated simultaneously, heating temperature at 400 DEG C,
Heating time is 60min and is stirred with graphite rod that mixing speed 300r/Min promotes silicon carbide to be evenly distributed in
In the solution of bismuth, heat preservation 30 minutes after the completion of stirring；Wherein, silicon carbide and aluminium oxide are graininess, and the grain of silicon carbide
Diameter is between 50-100 μm, and the grain size of aluminium oxide is between 50-100 μm, in addition, the purity of bismuth is more than or equal to 99.99%.
5) solution of silicon carbide, bismuth and aluminium oxide after the completion of heat preservation is added in the copper alloy that heat preservation is completed, again
It is stirred with graphite rod, mixing speed is 400r/Min and is heated up to 1350 DEG C；And sample and chemically examined, determine its chemistry
Ingredient is within desired extent；
6) solution for taking ingredient qualification waits for polishing after its solidification, respectively in showing in 400 times and 800 times of metallographic instrument
It under micro mirror, determines that its grain structure is uniform, determines that silicon carbide is evenly distributed in alloy with this；
7) after keeping the temperature 30 minutes, temperature is readjusted to 1250 DEG C, and open the vibrating device of main frequency furnace, vibration frequency
Rate is 10 times/second；Use horizontal continuous casting method casting that outer diameter is made as ￠ 25mm to ￠ 300mm, internal diameter is ￠ 10 to ￠ 250mm
Length is the hollow alloy pipe of 500mm；
8) surface turning is carried out to compo pipe with smooth turning lathe, tolerance is the product of +/- 0.1mm any surface finish；And it is right
Packaging and storage after the both ends deburring of compo pipe.
The performance comparison table of the preparation-obtained Cu alloy material of the method according to the invention and traditional material material is such as
Under：
Table 4
As seen from the above table, do not increasing cost according to the copper alloy obtained by composition proportion disclosed by the invention and method
In the case of, there is the cutting ability for further improving alloy in the requirement for meeting the environmental-protecting performance of right alloy while
And hardness, more suitable for the wear-resisting spare part of high temperature (400 degree) situation.
The foregoing is merely a prefered embodiment of the invention, practical range not for the purpose of limiting the invention；If not departing from this
The spirit and scope of invention, modify or equivalently replace the present invention, and should all cover the protection in the claims in the present invention
In range.
Claims (10)
1. a kind of continuously casting Cu alloy material for wear-resistant gear, which is characterized in that by the component of following mass percent
Composition：Zinc 1-2%, tin 2-3%, bismuth 2-3%, antimony 0.5-1%, silicon carbide 0.4-0.6%, aluminium oxide 0.4-0.7% and remaining
Amount is copper.
2. a kind of continuously casting Cu alloy material for wear-resistant gear according to claim 1, which is characterized in that by such as
The group of lower weight percent is grouped as：Zinc 1.5%, tin 2.5%, bismuth 2.5%, antimony 0.75%, silicon carbide 0.5%, aluminium oxide
0.5% and surplus be copper.
3. a kind of continuously casting Cu alloy material for wear-resistant gear according to claim 1, which is characterized in that by such as
The group of lower weight percent is grouped as：Zinc 1.7%, tin 2.7%, bismuth 2.7%, antimony 0.8%, silicon carbide 0.55%, aluminium oxide
0.6% and surplus be copper.
4. a kind of manufacture of continuously casting Cu alloy material for wear-resistant gear according to claim 1-3 any one
Method, which is characterized in that have steps of：
1) electricity Xie Tong ﹑ Xi ﹑ zinc and antimony is placed in main frequency furnace according to proportioning, be heated to 1200 DEG C be completely melt after keep the temperature to
1050℃；
2) it after being sufficiently stirred the alloy liquid being completely melt with graphite tool, is kept the temperature；
3) after soaking time 1-1.5 hours, composition detection is carried out to the copper alloy water that melting is completed, to determine that its alloying component exists
Within prescribed limit；
4) proportionally Bi ﹑ Tanization Gui ﹑ aluminium oxide is positioned in crucible furnace simultaneously and is heated, be used in combination graphite rod to be stirred, stir
It is 300r/Min to mix speed, and silicon carbide is promoted to be evenly distributed in the solution of bismuth, heat preservation 20-30 minutes after the completion of stirring；
5) solution of silicon carbide, bismuth and aluminium oxide after the completion of heat preservation is added in the copper alloy that heat preservation is completed, uses stone again
Inker is stirred, and mixing speed is 400r/Min and is heated up to 1300-1350 DEG C；And sample and chemically examined, determine its chemistry
Ingredient is within desired extent；
6) solution for taking ingredient qualification is waited for polishing after its solidification, determines that its grain structure is uniform by microscope, come with this true
Determine silicon carbide to be evenly distributed in alloy；
7) after keeping the temperature 20-30 minutes, temperature is readjusted to 1250 DEG C, and open the vibrating device of main frequency furnace, vibration frequency
For 10 times/second；Hollow alloy pipe is made in copper alloy solution casting according to respective specified；
8) surface turning is carried out to compo pipe with smooth turning lathe, tolerance is the product of +/- 0.1mm any surface finish；And to alloy
Packaging and storage after the both ends deburring of pipe.
5. a kind of manufacturing method of continuously casting Cu alloy material for wear-resistant gear according to claim 4, special
Sign is, in step 2), after the completion of graphite tool stirs the alloy liquid of thawing, covers high purity graphite in the above, thick
Degree is 3-5cm.
6. a kind of manufacturing method of continuously casting Cu alloy material for wear-resistant gear according to claim 4, special
Sign is, 3-5 sub-sampling detections are carried out to the copper alloy water in stove by Spike direct-reading spectrometer in step 3).
7. a kind of manufacturing method of continuously casting Cu alloy material for wear-resistant gear according to claim 4, special
Sign is that silicon carbide described in step 4) is graininess with the aluminium oxide, and the grain size of the silicon carbide is at 50-100 μm
Between, the grain size of the aluminium oxide is between 50-100 μm, in addition, the purity of bismuth is more than or equal to 99.99%.
8. a kind of manufacturing method of continuously casting Cu alloy material for wear-resistant gear according to claim 4, special
Sign is, the heating temperature in crucible furnace described in step 4) is at 360-400 DEG C, heating time 50-60min.
9. a kind of manufacturing method of continuously casting Cu alloy material for wear-resistant gear according to claim 4, special
Sign is, is detected under the microscope of 400 times and 800 times of metallographic instrument respectively in step 6).
10. a kind of manufacturing method of continuously casting Cu alloy material for wear-resistant gear according to claim 4, special
Sign is, uses horizontal continuous casting method casting that outer diameter is made as ￠ 25mm to ￠ 300mm in step 7), internal diameter is ￠ 10 to ￠
250mm, length are the hollow alloy pipe of 500mm.
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|---|---|---|---|---|
| JPS61149449A (en) * | 1984-12-24 | 1986-07-08 | Sumitomo Electric Ind Ltd | Composite material for lead frame for semiconductor device and its production |
| US5938864A (en) * | 1995-03-03 | 1999-08-17 | Taiho Kogyo Co., Ltd. | Sliding material and surface treating method thereof |
| CN103045898A (en) * | 2013-01-16 | 2013-04-17 | 苏州金仓合金新材料有限公司 | Novel environment-friendly high-stibium tin alloy pipe and preparation method thereof |
| CN105778406A (en) * | 2016-03-18 | 2016-07-20 | 华南理工大学 | Automotive copper-based powder metallurgy composite friction material and manfuacturing method thereof |
| CN106191518A (en) * | 2016-08-09 | 2016-12-07 | 苏州金仓合金新材料有限公司 | A kind of carborundum antimony stannum zinc-copper composite for high ferro locomotive and preparation method |
| CN107460364A (en) * | 2017-08-07 | 2017-12-12 | 苏州列治埃盟新材料技术转移有限公司 | A kind of continuously casting alloy material for bearing shell and preparation method thereof |
-
2018
- 2018-05-30 CN CN201810540210.8A patent/CN108642319A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61149449A (en) * | 1984-12-24 | 1986-07-08 | Sumitomo Electric Ind Ltd | Composite material for lead frame for semiconductor device and its production |
| US5938864A (en) * | 1995-03-03 | 1999-08-17 | Taiho Kogyo Co., Ltd. | Sliding material and surface treating method thereof |
| CN103045898A (en) * | 2013-01-16 | 2013-04-17 | 苏州金仓合金新材料有限公司 | Novel environment-friendly high-stibium tin alloy pipe and preparation method thereof |
| CN105778406A (en) * | 2016-03-18 | 2016-07-20 | 华南理工大学 | Automotive copper-based powder metallurgy composite friction material and manfuacturing method thereof |
| CN106191518A (en) * | 2016-08-09 | 2016-12-07 | 苏州金仓合金新材料有限公司 | A kind of carborundum antimony stannum zinc-copper composite for high ferro locomotive and preparation method |
| CN107460364A (en) * | 2017-08-07 | 2017-12-12 | 苏州列治埃盟新材料技术转移有限公司 | A kind of continuously casting alloy material for bearing shell and preparation method thereof |
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Application publication date: 20181012 |