CN109371296B - Anti-distortion joint-free coupling - Google Patents
Anti-distortion joint-free coupling Download PDFInfo
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- CN109371296B CN109371296B CN201811456362.6A CN201811456362A CN109371296B CN 109371296 B CN109371296 B CN 109371296B CN 201811456362 A CN201811456362 A CN 201811456362A CN 109371296 B CN109371296 B CN 109371296B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
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- 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
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- 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
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Abstract
The invention belongs to the technical field of metal processing, and particularly relates to an anti-twisting non-joint coupling, which is made of aluminum alloy, wherein the aluminum alloy comprises the following raw materials in percentage by mass: soaking the silver bamboo charcoal: 0.1-0.5%, Si: 0.05 to 0.15%, Zr: 0.1-0.2%, Ni: 0.04-0.1%, Co: 0.1 to 0.2 percent of Al and impurities as the rest, and the coupler is prepared by the processes of pretreatment, smelting, powder forming, finished product and the like, and the particle size of the coupler alloy is obtained by the raw material formula and the improvement of circulating hydrogenation-dehydrogenation, and the impurity element content in the alloy can be obviously reduced.
Description
Technical Field
The invention relates to an anti-twisting non-joint coupling, and belongs to the field of metal materials.
Background
The coupling is a device for connecting two shafts or a shaft and a rotating part, rotating together in the process of transmitting motion and power, and not detaching under normal conditions and changing the rotating direction and the torque. Sometimes used as a safety device to prevent the coupled parts from bearing excessive load, and to protect the coupled parts from overload, the coupling is a common part in mechanical products.
The coupling is usually composed of two halves, which are fastened to the two shaft ends by means of a key or a tight fit, and the two halves are connected together in some way. The joint has the defect of low stress capability, and is easy to break or bend.
Therefore, the performance of the coupler greatly determines the stability and transmission fluency of the linkage. The shape of the coupler can not be effectively changed, and the service life of the coupler can not be prolonged by optimizing the shape, so that the optimization of the material of the coupler is focused on, and the effective service life of the coupler is fundamentally prolonged. The aluminum alloy has better performance.
The aluminum alloy is an alloy system which is formed by adding a certain amount of additive elements and controlling the content of impurity elements on the basis of aluminum. The aluminum alloy has the advantages of high strength, high hardness and light weight, and is suitable for being used as a structural material. But the material composition and smelting process of the traditional aluminum alloy cannot better improve the alloy performance.
In order to overcome the defects of low hardness, poor wear resistance and the like of the traditional alloy, the publication No. 104975221A discloses a manufacturing method of a train coupler, and the train coupler has the advantages of good corrosion resistance and wear resistance, high yield strength, strong impact resistance and long service life. However, the alloy steel itself is heavy and the strength and corrosion resistance are not satisfactory for use in a complicated environment.
Disclosure of Invention
In view of the problems, the invention provides a coupler which has higher strength, high hardness, corrosion resistance and twisting prevention and can adapt to complex environments.
In order to achieve the purpose, the invention adopts the following technical scheme:
the anti-twisting joint-free coupler is made of aluminum alloy, and the aluminum alloy comprises the following raw materials in percentage by mass: soaking the silver bamboo charcoal: 0.1-0.5%, Si: 0.05 to 0.15%, Zr: 0.1-0.2%, Ni: 0.04-0.1%, Co: 0.1-0.2%, and the balance of Al and impurities.
Preferably, the silver-impregnated bamboo charcoal comprises superfine bamboo charcoal, nano silver particles and kaolin powder.
Preferably, the content of the superfine bamboo charcoal accounts for 80-90% of the silver-impregnated bamboo charcoal, the content of the nano-silver particles accounts for 5-10% of the silver-impregnated bamboo charcoal, and the content of the kaolin powder accounts for 5-10% of the silver-impregnated bamboo charcoal.
More preferably, the distribution of the silver-impregnated bamboo charcoal nano-silver particles on the superfine bamboo charcoal is 10-100 nano-silver/mm2Bamboo charcoal.
According to the invention, the silver-impregnated bamboo charcoal is specially added into the aluminum alloy material, the bamboo charcoal can be used as one of carbon elements to assist and reinforce the aluminum alloy, and the bamboo charcoal has a series of advantages of good heat conduction (heat dissipation), high temperature resistance, corrosion resistance, self-lubrication, good chemical stability, low thermal expansion coefficient and the like, namely the aluminum alloy can obtain the advantages through the bamboo charcoal. However, the bamboo charcoal has low mechanical strength and a small amount of air holes in the bamboo charcoal, which can reduce the strength of the aluminum alloy, so on the basis of the bamboo charcoal, the invention adds an auxiliary additive, namely kaolin powder, the main material of the kaolin is oxides of aluminum, silicon and the like and a composition, the kaolin is the main raw material for preparing ceramics, and the auxiliary additive is added into the bamboo charcoal as an additive, so that the auxiliary additive not only can fill the internal air holes of the bamboo charcoal and improve the strength of the bamboo charcoal, but also can improve the wear resistance and oxidation resistance of the alloy, and has a reinforcing effect. Meanwhile, the bamboo charcoal is subjected to silver impregnation treatment, because the kaolin powder only partially fills the internal pores of the bamboo charcoal and the filling strength is weak, the pores are filled in a silver impregnation way, so that the compactness of the bamboo charcoal is increased to the maximum extent, and the contact degree of the silver-impregnated bamboo charcoal material and the alloy is improved.
Moreover, the grain refinement effect of the Zr element can be enhanced by the silver-impregnated bamboo charcoal, and the visual embodiment of the grain refinement is the improvement of the compactness and the thermal shock resistance of the alloy. In the actual operation process of the coupler, not only rotation needs to be kept, but also the strength and the toughness of the rod need to exceed those of common alloys, and joint strengthening of Co element is needed to form a multi-element alloy phase structure.
The invention also provides another technical scheme while reasonably selecting the material proportion:
the preparation method of the anti-twisting jointless coupling comprises the following steps:
(1) pretreatment: weighing the raw materials, preheating superfine bamboo charcoal in vacuum, uniformly spreading kaolin powder on the surface of the bamboo charcoal, continuously heating and pressurizing to form composite bamboo charcoal, depositing nano silver on the surface of the composite bamboo charcoal, naturally cooling and crushing to obtain silver-impregnated bamboo charcoal particles;
(2) smelting: mixing and melting all materials except the silver-impregnated bamboo charcoal to form alloy liquid, naturally cooling to a semi-solid state, uniformly spreading silver-impregnated carbon particles on the surface of the semi-solid alloy, pressing, continuously heating until the alloy is in a liquid state, fully mixing, and cooling to obtain an alloy block;
(3) powder making and forming: performing cyclic hydrogenation-dehydrogenation treatment on the alloy block to form alloy powder, filling the powder into a die and pressing to form a coupling semi-finished product;
(4) and (3) finished product: and sintering the semi-finished coupling product and then carrying out heat treatment to obtain a finished coupling product.
In the preparation process of the coupler, silver is deposited on the surface of the bamboo charcoal by using a vacuum deposition method, and then the silver is pressed into the bamboo charcoal by using a pressurizing mode, so that the effect of fully filling pores is achieved, the density of the bamboo charcoal soaked with the silver is obviously increased, the compactness of the alloy is further improved, and the comprehensive performance of the alloy is improved. The preparation of the coupler is carried out by adopting a powder metallurgy method, so how to obtain proper powder particle size greatly influences the performance of the molded and sintered product. The invention adopts the powder process of circulating hydrogenation-dehydrogenation, not only obtains the particle size of a proper coupler, but also can obviously reduce the content of impurity elements in the alloy. According to the invention, the alloy block is preferably circulated for 5 times at 650 ℃ and 0.5MPa to obtain high-quality alloy powder with the grain diameter of 10-50 mu m, the O content of less than 2000 mu g/g and the H content of less than 20 mu g/g, and finally the coupler with good comprehensive performance is formed. The coupling of integrated into one piece does not need the connected node in the middle of, avoids the coupling to take place to twist even fracture because of the change of frequency of use, service environment in the use.
Preferably, the vacuum preheating temperature in the step (1) is a temperature at which sticky and slippery carbon graphite appears on the surface of the bamboo charcoal.
Preferably, the pressure for pressurizing in step (1) is 3 to 5 atmospheres.
When the bamboo charcoal surface appears sticky and slippery state, part of bamboo charcoal is graphitized, the self-lubricating property of the bamboo charcoal is improved, a path for kaolin to enter the interior of the bamboo charcoal is provided, and silver can better permeate into air holes under smaller applied pressure.
Preferably, the number of times of the cyclic hydrogenation-dehydrogenation treatment in the step (3) is 3 to 9.
Compared with the prior art, the invention has the following advantages:
(1) the bamboo charcoal can be used as one of carbon elements to assist and reinforce the aluminum alloy, and has a series of advantages of good heat conduction (heat dissipation), high temperature resistance, corrosion resistance, self-lubrication, good chemical stability, low thermal expansion coefficient and the like.
(2) The kaolin of the invention is added into the bamboo charcoal as an additive, which not only can fill the internal pores of the bamboo charcoal and improve the strength of the bamboo charcoal, but also improves the wear resistance and oxidation resistance of the alloy and has the effect of reinforcement.
(3) The invention also carries out silver leaching treatment on the bamboo charcoal, and carries out air hole filling in a silver leaching way, thereby increasing the compactness of the bamboo charcoal to the maximum extent and improving the contact degree of the silver-leached bamboo charcoal material and the alloy.
(4) The invention adopts the powder process of circulating hydrogenation-dehydrogenation, not only obtains the particle size of the proper coupling alloy, but also can obviously reduce the content of impurity elements in the alloy.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1
Preparing materials: weighing the raw materials according to the ratio of the aluminum alloy, wherein the raw materials comprise silver-impregnated bamboo charcoal: 0.3%, Si: 0.1%, Zr: 0.15%, Ni: 0.07%, Co: 0.15 percent of Al and impurities, wherein the silver-impregnated bamboo charcoal consists of superfine bamboo charcoal with the content accounting for 85 percent of the silver-impregnated bamboo charcoal, nano-silver particles with the content accounting for 8 percent of the silver-impregnated bamboo charcoal and kaolin powder with the content accounting for 7 percent of the silver-impregnated bamboo charcoal, and the distribution of the nano-silver particles on the superfine bamboo charcoal is 50 nano-silver/mm2Bamboo charcoal;
pretreatment: preheating superfine bamboo charcoal in vacuum until sticky and smooth carbon graphite appears on the surface of the bamboo charcoal, uniformly spreading kaolin powder on the surface of the bamboo charcoal, continuously heating and adding 4 atmospheric pressures to form composite bamboo charcoal, depositing nano silver on the surface of the composite bamboo charcoal, naturally cooling and crushing to obtain silver-impregnated bamboo charcoal particles;
smelting: mixing and melting all materials except the silver-impregnated bamboo charcoal to form alloy liquid, naturally cooling to a semi-solid state, uniformly spreading silver-impregnated carbon particles on the surface of the semi-solid alloy, pressing, continuously heating until the alloy is in a liquid state, fully mixing, and cooling to obtain an alloy block;
powder making and forming: heating the alloy block to 650 ℃, controlling the pressure to be 0.5 atmospheric pressure, carrying out 5 times of circulating hydrogenation-dehydrogenation treatment to form alloy powder, filling the powder into a die and pressing to obtain a coupling semi-finished product;
and (3) finished product: and sintering the semi-finished coupling product and then carrying out heat treatment to obtain a finished coupling product.
Example 2
Preparing materials: weighing the raw materials according to the ratio of the aluminum alloy, wherein the raw materials comprise silver-impregnated bamboo charcoal: 0.1%, Si: 0.05%, Zr: 0.1%, Ni: 0.04%, Co: 0.1 percent of Al and impurities, wherein the silver-impregnated bamboo charcoal consists of ultrafine bamboo charcoal with the content accounting for 80 percent of the silver-impregnated bamboo charcoal, nano-silver particles with the content accounting for 10 percent of the silver-impregnated bamboo charcoal and kaolin powder with the content accounting for 10 percent of the silver-impregnated bamboo charcoal, and the distribution of the nano-silver particles on the ultrafine bamboo charcoal is 10 nano-silver/mm2Bamboo charcoal;
pretreatment: preheating superfine bamboo charcoal in vacuum until sticky and smooth carbon graphite appears on the surface of the bamboo charcoal, uniformly spreading kaolin powder on the surface of the bamboo charcoal, continuously heating and adding 4 atmospheric pressures to form composite bamboo charcoal, depositing nano silver on the surface of the composite bamboo charcoal, naturally cooling and crushing to obtain silver-impregnated bamboo charcoal particles;
smelting: mixing and melting all materials except the silver-impregnated bamboo charcoal to form alloy liquid, naturally cooling to a semi-solid state, uniformly spreading silver-impregnated carbon particles on the surface of the semi-solid alloy, pressing, continuously heating until the alloy is in a liquid state, fully mixing, and cooling to obtain an alloy block;
powder making and forming: heating the alloy block to 650 ℃, controlling the pressure to be 0.5 atmospheric pressure, carrying out 5 times of circulating hydrogenation-dehydrogenation treatment to form alloy powder, filling the powder into a die and pressing to obtain a coupling semi-finished product;
and (3) finished product: and sintering the semi-finished coupling product and then carrying out heat treatment to obtain a finished coupling product.
Example 3
Preparing materials: weighing the raw materials according to the ratio of the aluminum alloy, wherein the raw materials comprise silver-impregnated bamboo charcoal: 0.5%, Si: 0.15 percentZr: 0.2%, Ni: 0.1%, Co: 0.2 percent of Al and impurities, wherein the silver-impregnated bamboo charcoal consists of superfine bamboo charcoal with the content accounting for 90 percent of the silver-impregnated bamboo charcoal, nano-silver particles with the content accounting for 5 percent of the silver-impregnated bamboo charcoal and kaolin powder with the content accounting for 5 percent of the silver-impregnated bamboo charcoal, and the distribution of the nano-silver particles on the superfine bamboo charcoal is 100 nano-silver/mm2Bamboo charcoal;
pretreatment: preheating superfine bamboo charcoal in vacuum until sticky and smooth carbon graphite appears on the surface of the bamboo charcoal, uniformly spreading kaolin powder on the surface of the bamboo charcoal, continuously heating and adding 4 atmospheric pressures to form composite bamboo charcoal, depositing nano silver on the surface of the composite bamboo charcoal, naturally cooling and crushing to obtain silver-impregnated bamboo charcoal particles;
smelting: mixing and melting all materials except the silver-impregnated bamboo charcoal to form alloy liquid, naturally cooling to a semi-solid state, uniformly spreading silver-impregnated carbon particles on the surface of the semi-solid alloy, pressing, continuously heating until the alloy is in a liquid state, fully mixing, and cooling to obtain an alloy block;
powder making and forming: heating the alloy block to 650 ℃, controlling the pressure to be 0.5 atmospheric pressure, carrying out 5 times of circulating hydrogenation-dehydrogenation treatment to form alloy powder, filling the powder into a die and pressing to obtain a coupling semi-finished product;
and (3) finished product: and sintering the semi-finished coupling product and then carrying out heat treatment to obtain a finished coupling product.
Example 4
Preparing materials: weighing the raw materials according to the ratio of the aluminum alloy, wherein the raw materials comprise silver-impregnated bamboo charcoal: 0.3%, Si: 0.1%, Zr: 0.15%, Ni: 0.07%, Co: 0.15 percent of Al and impurities, wherein the silver-impregnated bamboo charcoal consists of superfine bamboo charcoal with the content accounting for 85 percent of the silver-impregnated bamboo charcoal, nano-silver particles with the content accounting for 8 percent of the silver-impregnated bamboo charcoal and kaolin powder with the content accounting for 7 percent of the silver-impregnated bamboo charcoal, and the distribution of the nano-silver particles on the superfine bamboo charcoal is 50 nano-silver/mm2Bamboo charcoal;
pretreatment: preheating superfine bamboo charcoal in vacuum until sticky and smooth carbon graphite appears on the surface of the bamboo charcoal, uniformly spreading kaolin powder on the surface of the bamboo charcoal, continuously heating and adding 3 atmospheric pressures to form composite bamboo charcoal, depositing nano silver on the surface of the composite bamboo charcoal, naturally cooling and crushing to obtain silver-impregnated bamboo charcoal particles;
smelting: mixing and melting all materials except the silver-impregnated bamboo charcoal to form alloy liquid, naturally cooling to a semi-solid state, uniformly spreading silver-impregnated carbon particles on the surface of the semi-solid alloy, pressing, continuously heating until the alloy is in a liquid state, fully mixing, and cooling to obtain an alloy block;
powder making and forming: heating the alloy block to 600 ℃, controlling the pressure to be 0.3 atmospheric pressure, performing 3 times of circulating hydrogenation-dehydrogenation treatment to form alloy powder, filling the powder into a die and pressing to obtain a coupling semi-finished product;
and (3) finished product: and sintering the semi-finished coupling product and then carrying out heat treatment to obtain a finished coupling product.
Example 5
Preparing materials: weighing the raw materials according to the ratio of the aluminum alloy, wherein the raw materials comprise silver-impregnated bamboo charcoal: 0.3%, Si: 0.1%, Zr: 0.15%, Ni: 0.07%, Co: 0.15 percent of Al and impurities, wherein the silver-impregnated bamboo charcoal consists of superfine bamboo charcoal with the content accounting for 85 percent of the silver-impregnated bamboo charcoal, nano-silver particles with the content accounting for 8 percent of the silver-impregnated bamboo charcoal and kaolin powder with the content accounting for 7 percent of the silver-impregnated bamboo charcoal, and the distribution of the nano-silver particles on the superfine bamboo charcoal is 50 nano-silver/mm2Bamboo charcoal;
pretreatment: preheating superfine bamboo charcoal in vacuum until sticky and smooth carbon graphite appears on the surface of the bamboo charcoal, uniformly spreading kaolin powder on the surface of the bamboo charcoal, continuously heating and adding 5 atmospheric pressures to form composite bamboo charcoal, depositing nano silver on the surface of the composite bamboo charcoal, naturally cooling and crushing to obtain silver-impregnated bamboo charcoal particles;
smelting: mixing and melting all materials except the silver-impregnated bamboo charcoal to form alloy liquid, naturally cooling to a semi-solid state, uniformly spreading silver-impregnated carbon particles on the surface of the semi-solid alloy, pressing, continuously heating until the alloy is in a liquid state, fully mixing, and cooling to obtain an alloy block;
powder making and forming: heating the alloy block to 700 ℃, controlling the pressure to be 0.7 atmospheric pressure, carrying out 9 times of circulating hydrogenation-dehydrogenation treatment to form alloy powder, filling the powder into a die and pressing to obtain a coupling semi-finished product;
and (3) finished product: and sintering the semi-finished coupling product and then carrying out heat treatment to obtain a finished coupling product.
Example 6
The difference from the example 1 is only that the content of the silver-impregnated bamboo charcoal in the aluminum alloy raw material of the example 6 is 0.05%.
Example 7
The difference from the example 1 is that the content of the silver-impregnated bamboo charcoal in the aluminum alloy raw material of the example 7 is 0.55%.
Example 8
The difference from the example 1 is that the distribution of the silver-impregnated bamboo charcoal nano-silver particles on the ultra-fine bamboo charcoal in the example 8 is 9 nano-silver/mm2Bamboo charcoal.
Example 9
The difference from the example 1 is that the distribution of the silver-impregnated bamboo charcoal nano-silver particles on the ultrafine bamboo charcoal is 101 nano-silver/mm in the example 92Bamboo charcoal.
Example 10
The only difference from example 1 is that the surface of the ultra-fine bamboo charcoal in example 10 is not sticky and slippery carbon graphite when heated.
Example 11
The only difference from example 1 is that the ultra-fine bamboo charcoal of example 11 is completely sticky and smooth carbon graphite after heating.
Example 12
The only difference from example 1 is that example 12 had 1 cycle of hydro-dehydro-treatments.
Example 13
The only difference from example 1 is that example 13 had 10 cycles of hydro-dehydro-treatment.
Comparative example 1
The only difference from example 1 is that the aluminum alloy composition of comparative example 1 does not contain silver impregnated bamboo charcoal.
Comparative example 2
The only difference from example 1 is that the silver impregnated bamboo charcoal of comparative example 2 does not contain kaolin powder.
Comparative example 3
The difference from the example 1 is that the comparative example 3 directly mixes and melts the silver-impregnated bamboo charcoal with other raw materials to form an alloy block.
Comparative example 4
The only difference from example 1 is that comparative example 4 does not subject the bulk alloy to a cyclic hydrogenation-dehydrogenation treatment.
The couplings of examples 1-13 and comparative examples 1-4 were tested for strength, elongation, corrosion resistance and hardness, and the results are shown in table 1:
table 1: performance of couplings in examples 1-13 and comparative examples 1-4
The corrosion resistance data in the table refers to the time when corrosion points appear on the surface of the coupling, and the change in materials and processes can have a great influence on the performance of the product.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.
Claims (2)
1. The anti-distortion joint-free coupler is characterized in that the coupler is made of aluminum alloy, and the aluminum alloy is composed of the following raw materials in percentage by mass: soaking the silver bamboo charcoal: 0.1-0.5%, Si: 0.05 to 0.15%, Zr: 0.1-0.2%, Ni: 0.04-0.1%, Co: 0.1-0.2%, and the balance of Al and impurities; the silver-impregnated bamboo charcoal comprises superfine bamboo charcoal, nano silver particles and kaolin powder; the content of the superfine bamboo charcoal accounts for 80-90% of the silver-impregnated bamboo charcoal, the content of the nano-silver particles accounts for 5-10% of the silver-impregnated bamboo charcoal, and the content of the kaolin powder accounts for 5-10% of the silver-impregnated bamboo charcoal; the preparation process of the silver-impregnated bamboo charcoal comprises the following steps: the preparation method comprises the steps of preheating superfine bamboo charcoal in vacuum until sticky and smooth carbon graphite appears on the surface of the bamboo charcoal, uniformly spreading kaolin powder on the surface of the bamboo charcoal, continuously heating and adding 4 atmospheric pressures to form composite bamboo charcoal, depositing nano silver on the surface of the composite bamboo charcoal, naturally cooling and crushing to obtain silver-impregnated bamboo charcoal particles.
2. The coupling of claim 1, whichCharacterized in that the distribution of the silver-impregnated bamboo charcoal nano-silver particles on the superfine bamboo charcoal is 10-100 nano-silver/mm2Bamboo charcoal.
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| JP2005154799A (en) * | 2003-11-21 | 2005-06-16 | Mitsubishi Alum Co Ltd | Method of producing aluminum alloy clad fin material having excellent strength and solder erosion resistance |
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| CN106977226A (en) * | 2017-03-31 | 2017-07-25 | 同济大学 | One kind carries silver TiO2Modification bamboo charcoal composite diatomite wall board and its preparation |
| CN107881441A (en) * | 2017-11-24 | 2018-04-06 | 江苏瑞博光电科技有限公司 | bamboo charcoal fiber heat dissipation material for L ED |
| CN108672702A (en) * | 2018-05-21 | 2018-10-19 | 宁波市奇强精密冲件有限公司 | Damper knuckle support |
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- 2018-11-30 CN CN201811456362.6A patent/CN109371296B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005154799A (en) * | 2003-11-21 | 2005-06-16 | Mitsubishi Alum Co Ltd | Method of producing aluminum alloy clad fin material having excellent strength and solder erosion resistance |
| CN106169386A (en) * | 2015-05-22 | 2016-11-30 | Ls产电株式会社 | For the preparation method containing the electrical contact material of plating Ag CNTs |
| CN105256186A (en) * | 2015-11-16 | 2016-01-20 | 利辛县江淮扬天汽车有限公司 | Powder metallurgy bearing material and preparation method thereof |
| CN106977226A (en) * | 2017-03-31 | 2017-07-25 | 同济大学 | One kind carries silver TiO2Modification bamboo charcoal composite diatomite wall board and its preparation |
| CN107881441A (en) * | 2017-11-24 | 2018-04-06 | 江苏瑞博光电科技有限公司 | bamboo charcoal fiber heat dissipation material for L ED |
| CN108672702A (en) * | 2018-05-21 | 2018-10-19 | 宁波市奇强精密冲件有限公司 | Damper knuckle support |
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