CN102873095B - Low-temperature rolling method for preparing molybdenum-copper alloy - Google Patents
Low-temperature rolling method for preparing molybdenum-copper alloy Download PDFInfo
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- CN102873095B CN102873095B CN201210405505.7A CN201210405505A CN102873095B CN 102873095 B CN102873095 B CN 102873095B CN 201210405505 A CN201210405505 A CN 201210405505A CN 102873095 B CN102873095 B CN 102873095B
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- WUUZKBJEUBFVMV-UHFFFAOYSA-N copper molybdenum Chemical compound [Cu].[Mo] WUUZKBJEUBFVMV-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 238000005096 rolling process Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 50
- 229910000881 Cu alloy Inorganic materials 0.000 title description 2
- 239000011889 copper foil Substances 0.000 claims abstract description 43
- 238000005245 sintering Methods 0.000 claims description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 229910052750 molybdenum Inorganic materials 0.000 claims description 20
- 239000011733 molybdenum Substances 0.000 claims description 20
- 238000009413 insulation Methods 0.000 claims description 16
- 238000003801 milling Methods 0.000 claims description 12
- 238000007796 conventional method Methods 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000003754 machining Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 description 16
- 238000005097 cold rolling Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000009703 powder rolling Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 238000000462 isostatic pressing Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 2
- ZOKXTWBITQBERF-VENIDDJXSA-N molybdenum-90 Chemical compound [90Mo] ZOKXTWBITQBERF-VENIDDJXSA-N 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- ZGHDMISTQPRNRG-UHFFFAOYSA-N dimolybdenum Chemical compound [Mo]#[Mo] ZGHDMISTQPRNRG-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Abstract
The invention discloses a method for preparing molybdenum-copper foil, which includes the steps of: (1) preparing sintered molybdenum-copper billet through a normal method; (2) preheating the molybdenum-copper billet to 40-300DEG C, thermally insulating the billet for 5-30mins for standby use; (3) preheating a roller of a rolling mill to 40-80DEG C; and (4) rolling the preheated molybdenum-copper billet on the rolling mill to obtain the molybdenum-copper foil. By adopting a low-temperature rolling method, the invention overcomes the problems of big equipment investment, poor machining precision and low material utilization ratio in the prior production process. The method improves the machining precision and the production efficiency of the molybdenum-copper foil.
Description
Technical field
The invention belongs to and prepare molybdenum-copper field, be specifically related to a kind of zerolling method of preparing molybdenum-copper.
Background technology
A kind of pseudo-alloy material that molybdenum-copper is made up of molybdenum and copper, because it has low-expansion coefficient and the good characteristic such as conduction and thermal conductivity simultaneously, be widely used in industries such as electric elements, semiconductor packages, electronics, paid attention in high-power LED illumination chip industry again in recent years, there is very large potential market.But, the molybdenum-copper paillon foil part using in semiconductor packages industry, electronics and high-power LED illumination industry, owing to requiring density large, General Requirements is greater than 99.5% of solid density; Thin thickness, is generally 80-200 micron, and thickness deviation requires in 5 micrometer ranges, and Part Surface Roughness requires below Ra0.08.But, adopt current existing process to be difficult to realize these technical requirements.
The major technique of existing molybdenum-copper foil material processing has following two kinds of methods:
(1) to the sintered blank that adopts powder metallurgy process to make, directly cut, then adopt the method for one side mill or two-sided mill to make the molybdenum-copper paillon foil part of desired thickness and surface roughness.
This technology exists stock utilization low, and the output ratio that feeds intake is generally not more than 50%, and adopts the molybdenum copper foil part of this technology production still to have internal void, and part actual density is generally between 92-95%, far below various problems such as solid densities.
(2) in the recrystallization temperature higher than copper, utilize the mechanical means such as forging and stamping, rolling, compacting to exert pressure to molybdenum-copper blank, make it produce plastic deformation, obtain initial blank; Then by cold rolling method, sintering molybdenum-copper is carried out to cold rolling processing, carry out intermediate annealing when compress variation is 30～40%, annealing so repeatedly-cold rolling, is directly processed to desired thickness.
This technology exists the production cycle long, produces the cycle of paillon foil part at least more than 5 days; Energy consumption is high, and the operations such as forge hot, hot rolling, hot pressing, annealing must adopt powerful high-temperature heater; Because processing passage is many, cause finished product rate low, general input-output ratio is not more than 15%; Hold facility kind is more, and mostly is high-power and large-tonnage process equipment, and equipment investment is larger; Product thickness tolerance is difficult to reach 5 microns; Product surface roughness is generally difficult to reach the various problems such as Ra0.08.
The patent No. is the United States Patent (USP) of US5686676, employing sintering in reducibility gas improves the effect of sintering, thereby and the blank that contains oxygen molecule by use discharges oxygen with accelerated reaction in sintering process, and add corrosion inhibitor to reduce the hypergolic reaction of material in blank.Although these means can play certain effect that improves production efficiency,, still there are the problems referred to above of prior art in the framework that it does not depart from prior art in essence.
Application number is the cold rolling process that 201010177490.4 Chinese patent discloses a kind of molybdenum-copper alloy thin plate, the feature of the method is that the whole operation of rolling at room temperature completes, but need to pass through the cold rolling of a few to tens of passages, and pressure rolling speed is lower, between 0.1-1m/s, therefore production efficiency is lower, and the production cycle is longer.In addition, the milled sheet thickness deviation control difficulty that the method obtains is larger, and while reaching 5 microns of tolerances, production efficiency can be lower.
Summary of the invention
The object of this invention is to provide a kind of zerolling method of preparing molybdenum-copper, the method has solved the problem that equipment investment is large, machining accuracy is poor, working (machining) efficiency is low, stock utilization is low existing in existing molybdenum-copper foil production process, improve the machining accuracy of molybdenum-copper foil, and production efficiency, and by adopting the mode of preheating insulation, further reduce rolling pass, improved production efficiency.
In order to reach foregoing invention object, a kind of zerolling method of preparing molybdenum-copper provided by the present invention is achieved through the following technical solutions:
A method of preparing molybdenum-copper foil, comprises the following steps:
(1) adopt conventional method to prepare molybdenum-copper sintering blank;
(2) molybdenum-copper blank is preheated to 40-300 DEG C, and insulation 5-30min is stand-by;
(3) roll of plate mill is preheated to 40-80 DEG C;
(4) preheated molybdenum-copper blank is rolled on milling train, makes molybdenum-copper foil.
Preferably, in described step (1), the percentage by weight of molybdenum-copper sintering blank is copper 5-50%, molybdenum 50-95%.
Preferably, in described step (1), the thickness of molybdenum-copper sintering blank is 0.25-2.5mm.
Preferably, in described step (2), optimum Preheating Temperature raises with the increase of molybdenum content in molybdenum-copper blank, and best temperature retention time extends with the increase of the thickness of molybdenum-copper blank.
Preferably, described method also comprises step (5): after the passage processing capacity of rolling first reaches, rapidly molybdenum-copper blank is again incubated at the temperature of 40-300 DEG C to 5-30min, and then rolling, so, through the rolling of 2-8 passage, can make thickness is the molybdenum-copper foil of 0.05-0.5mm.
Preferably, the percentage by weight of molybdenum-copper sintering blank is copper 15-25%, molybdenum 75-85%, and preheat temperature is 40-100 DEG C.
Preferably, the passage processing capacity of described mill milling is less than or equal to 50%, and mill speed is less than or equal to 15m/s.
Preferably, described milling train is two rollers, four rollers, 12 rollers or mill.
The present invention adopts the cold-rolling process of infusibility molybdenum molybdenum processing, compared with traditional hot rolling cogging, annealing, cold rolling production technology, has that production efficiency is high, Product Precision good, stock utilization high.Adopt the present invention, only need a conventional baking oven, a platen mill, equipment investment is few; General only through the rolling of no more than 8 passages, every time rolling time is generally no more than 30min, and production efficiency improves greatly; Can process the foil part being as thin as within the scope of 0.05-0.5mm; Can directly make thickness deviation, surface roughness meets the requirements of molybdenum-copper part; And stock utilization improves greatly, the output ratio that feeds intake generally can be lower than 70%.
Brief description of the drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and easily understand.
Fig. 1 is the flow chart of preparing the method for molybdenum-copper foil.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of method of preparing molybdenum-copper foil, comprises the following steps:
(1) adopt conventional method to prepare molybdenum-copper sintering blank;
Raw material adopts commercially available molybdenum-copper sintering blank, or the molybdenum-copper sintering blank that adopts other powder metallurgy process to be prepared from as mold pressing, rolling, isostatic pressing moulding etc.;
Preferably, the percentage by weight of molybdenum-copper sintering blank is copper 5-50%, molybdenum 50-95%, and thickness is 0.2
(2) molybdenum-copper blank is preheated to 40-300 DEG C, and insulation 5-30min is stand-by;
The selection that it is pointed out that preheating optimum temperature raises with the increase of molybdenum content in molybdenum-copper blank, and the length of best temperature retention time extends with the increase of the thickness of molybdenum-copper blank.
Preferably, the percentage by weight of molybdenum-copper sintering blank is copper 15-25%, molybdenum 75-85%, be preheated to 40-100 DEG C, and it is stand-by to be incubated 5-30min.
(3) roll of milling train is preheated to 40-80 DEG C;
(4) preheated molybdenum-copper blank is rolled on milling train, can make thickness is the molybdenum-copper foil of 0.05-0.5mm.
Can use two rollers, four rollers, 12 rollers, mill to be directly rolled preheated molybdenum-copper blank, wherein, passage processing capacity is less than or equal to 50%, and mill speed is less than or equal to 15m/s.
According to actual needs, often need rolling repeatedly just can obtain the molybdenum-copper foil of ideal thickness.Therefore described method, further comprise step (5): after the passage processing capacity of rolling first reaches, rapidly molybdenum-copper blank is again incubated at the temperature of 40-300 DEG C to 5-30min, and then rolling, so general through 2-5 passage rolling (maximum is not more than 8 times), make the molybdenum-copper foil of ideal thickness.
Rolling is the same with rolling first again, can use two rollers, four rollers, 12 rollers, mill to be rolled, and passage processing capacity is less than or equal to 50%, and mill speed is less than or equal to 15m/s.
Be specific embodiment below:
Embodiment 1
Adopt powder rolling process to make the molybdenum-copper sintering blank that percentage by weight is copper 20%, molybdenum 80%, its thickness is 0.5mm; The roll of 20 roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 40-100 DEG C in baking oven, 5-8min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on 20 roller plate mills through preheating, passage processing capacity is less than or equal to 45%, and mill speed is 8m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 5-8min at the temperature of 40-100 DEG C rapidly, and then rolling; So, through 3 passage rollings, can make thickness is the molybdenum-copper foil of 0.25mm.Through measuring, the density reachable to 99.95% of this molybdenum-copper foil, thickness deviation is 3 microns, and surface roughness is Ra0.05, and input-output ratio reaches 89%.
Embodiment 2
Adopt stamping of powder technique to make the molybdenum-copper sintering blank that percentage by weight is copper 25%, molybdenum 75%, its thickness is 1.5mm; The roll of two roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 40-90 DEG C in baking oven, 10-15min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on two roller plate mills through preheating, passage processing capacity is less than or equal to 45%, and mill speed is 15m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 10-15min at the temperature of 40-90 DEG C rapidly, and then rolling; So, through 5 passage rollings, can make thickness is the molybdenum-copper foil of 0.05mm.Through measuring, the density reachable to 99.95% of this molybdenum-copper foil, thickness deviation is 3 microns, and surface roughness is Ra0.05, and input-output ratio reaches 85%.
Embodiment 3
Adopt powder rolling process to make the molybdenum-copper sintering blank that percentage by weight is copper 20%, molybdenum 80%, its thickness is 0.5mm; The roll of 20 roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 40-100 DEG C in baking oven, 5-8min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on 20 roller plate mills through preheating, passage processing capacity is less than or equal to 55%, and mill speed is 8m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 5-8min at the temperature of 150-260 DEG C rapidly, and then rolling; So, through 2 passage rollings, can make thickness is the molybdenum-copper foil of 0.05mm.Through measuring, the density reachable to 99.5% of this molybdenum-copper foil, thickness deviation is 3 microns, and surface roughness is Ra0.05, and input-output ratio reaches 85%.
Embodiment 4
Adopt stamping of powder technique to make the molybdenum-copper sintering blank that percentage by weight is copper 15%, molybdenum 85%, its thickness is 2.5mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 40-100 DEG C in baking oven, 15-20min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 35%, and mill speed is 10m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 15-20min at the temperature of 50-120 DEG C rapidly, and then rolling; So, through 5 passage rollings, can make thickness is the molybdenum-copper foil of 0.5mm.Through measuring, the density reachable to 99.95% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 85%.
Embodiment 5
Adopt powder isostatic pressing process to make the molybdenum-copper sintering blank that percentage by weight is copper 10%, molybdenum 90%, its thickness is 2.0mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 60-150 DEG C in baking oven, 20-30min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 25%, and mill speed is 6m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 20-30min at the temperature of 60-150 DEG C rapidly, and then rolling; So, through 5 passage rollings, can make thickness is the molybdenum-copper foil of 0.5mm.Through measuring, the density reachable to 99.95% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 86%.
Embodiment 6
Adopt powder rolling process to make the molybdenum-copper sintering blank that percentage by weight is copper 15%, molybdenum 85%, its thickness is 1.0mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 150-250 DEG C in baking oven, 10-15min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 35%, and mill speed is 8m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 10-15min at the temperature of 150-250 DEG C rapidly, and then rolling; So, through 4 passage rollings, can make thickness is the molybdenum-copper foil of 0.08mm.Through measuring, the density reachable to 99.95% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 82%.
Embodiment 7
Adopt stamping of powder technique to make the molybdenum-copper sintering blank that percentage by weight is copper 15%, molybdenum 85%, its thickness is 2.5mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 200-300 DEG C in baking oven, 10-20min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 35%, and mill speed is 10m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 15-20min at the temperature of 200-300 DEG C rapidly, and then rolling; So, through 5 passage rollings, can make thickness is the molybdenum-copper foil of 0.5mm.Through measuring, the density reachable to 99.5% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 88%.
Embodiment 8
Adopt powder rolling process to make the molybdenum-copper sintering blank that percentage by weight is copper 20%, molybdenum 80%, its thickness is 0.5mm; The roll of 20 roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 150-260 DEG C in baking oven, 5-8min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on 20 roller plate mills through preheating, passage processing capacity is less than or equal to 55%, and mill speed is 8m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 5-8min at the temperature of 150-260 DEG C rapidly, and then rolling; So, through 2 passage rollings, can make thickness is the molybdenum-copper foil of 0.05mm.Through measuring, the density reachable to 99.5% of this molybdenum-copper foil, thickness deviation is 3 microns, and surface roughness is Ra0.05, and input-output ratio reaches 82%.
Embodiment 9
Adopt powder isostatic pressing process to make the molybdenum-copper sintering blank that percentage by weight is copper 10%, molybdenum 90%, its thickness is 2.0mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 200-300 DEG C in baking oven, 20-30min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 45%, and mill speed is 6m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 20-30min at the temperature of 200-300 DEG C rapidly, and then rolling; So, through 3 passage rollings, can make thickness is the molybdenum-copper foil of 0.5mm.Through measuring, the density reachable to 99.5% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 82%.
Embodiment 10
Adopt stamping of powder technique to make the molybdenum-copper sintering blank that percentage by weight is copper 30%, molybdenum 70%, its thickness is 1.5mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 150-250 DEG C in baking oven, 10-15min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 55%, and mill speed is 15m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 10-15min at the temperature of 150-250 DEG C rapidly, and then rolling; So, through 3 passage rollings, can make thickness is the molybdenum-copper foil of 0.15mm.Through measuring, the density reachable to 99.5% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 83%.
Embodiment 11
Adopt powder rolling process to make the molybdenum-copper sintering blank that percentage by weight is copper 15%, molybdenum 85%, its thickness is 1.0mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 100-200 DEG C in baking oven, 10-15min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 45%, and mill speed is 8m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 10-15min at the temperature of 100-200 DEG C rapidly, and then rolling; So, through 3 passage rollings, can make thickness is the molybdenum-copper foil of 0.08mm.Through measuring, the density reachable to 99.5% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 85%.
Embodiment 12
Adopt powder rolling process to make the molybdenum-copper sintering blank that percentage by weight is copper 15%, molybdenum 85%, its thickness is 0.25mm; The roll of four roller plate mills is preheated to 40-80 DEG C; This molybdenum-copper blank is preheated to 100-150 DEG C in baking oven, 10-15min when insulation; Then rapidly by the molybdenum-copper blank Direct Rolling on four roller plate mills through preheating, passage processing capacity is less than or equal to 35%, and mill speed is 2m/s; After passage processing capacity reaches, then molybdenum-copper blank is put into baking oven is again incubated 10-15min at the temperature of 100-150 DEG C rapidly, and then rolling; So, through 3 passage rollings, can make thickness is the molybdenum-copper foil of 0.08mm.Through measuring, the density reachable to 99.5% of this molybdenum-copper foil, thickness deviation is 4 microns, and surface roughness is Ra0.05, and input-output ratio reaches 82%.
The present invention is used in the production process of the molybdenum-copper foil product of the multi-field application such as electronics, communication, semiconductor, illumination, safety, medical treatment, military project, space flight, aviation, ocean.
One of ordinary skill in the art of the present invention are appreciated that; the above embodiment of the present invention is only one of the preferred embodiments of the present invention; for length restriction; here can not all embodiments of particularize; any enforcement that can embody the claims in the present invention technical scheme, all in protection scope of the present invention.
It should be noted that; above content is in conjunction with concrete embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; under above-mentioned guidance of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection scope of the present invention.
Claims (9)
1. a method of preparing molybdenum-copper foil, comprises the following steps:
(1) adopt conventional method to prepare molybdenum-copper sintering blank, wherein, the percentage by weight of molybdenum-copper sintering blank is copper 5-50%, molybdenum 50-95%, and the thickness of molybdenum-copper sintering blank is 0.25-2.5mm;
(2) molybdenum-copper blank is preheated to 40-300 DEG C, and insulation 5-30min is stand-by;
(3) roll of milling train is preheated to 40-80 DEG C;
(4) preheated molybdenum-copper blank is rolled on milling train, makes molybdenum-copper foil.
2. method according to claim 1, is characterized in that, in described step (2), optimum Preheating Temperature raises with the increase of molybdenum content in molybdenum-copper blank, and best temperature retention time extends with the increase of the thickness of molybdenum-copper blank.
3. according to the arbitrary described method of claim 1-2, it is characterized in that, also comprise step (5): after the passage processing capacity of rolling first reaches, rapidly molybdenum-copper blank is again incubated at the temperature of 40-300 DEG C to 15-20min, and then rolling, so, through the rolling of 2-8 passage, can make thickness is the molybdenum-copper foil of 0.05-0.5mm.
4. method according to claim 3, is characterized in that, the percentage by weight of molybdenum-copper sintering blank is copper 15-25%, molybdenum 75-85%, and preheat temperature is 40-100 DEG C.
5. method according to claim 3, is characterized in that, the passage processing capacity of described mill milling is less than or equal to 50%, and mill speed is less than or equal to 15m/s.
6. method according to claim 4, is characterized in that, the passage processing capacity of described mill milling is less than or equal to 50%, and mill speed is less than or equal to 15m/s.
7. method according to claim 3, is characterized in that, described milling train is two rollers, four rollers, 12 rollers or mill.
8. method according to claim 5, is characterized in that, described milling train is two rollers, four rollers, 12 rollers or mill.
9. method according to claim 6, is characterized in that, described milling train is two rollers, four rollers, 12 rollers or mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405505.7A CN102873095B (en) | 2012-10-22 | 2012-10-22 | Low-temperature rolling method for preparing molybdenum-copper alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405505.7A CN102873095B (en) | 2012-10-22 | 2012-10-22 | Low-temperature rolling method for preparing molybdenum-copper alloy |
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| Publication Number | Publication Date |
|---|---|
| CN102873095A CN102873095A (en) | 2013-01-16 |
| CN102873095B true CN102873095B (en) | 2014-11-12 |
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| CN104923561A (en) * | 2014-03-20 | 2015-09-23 | 六晶金属科技（苏州）有限公司 | Rolling method for metal substrate for LED |
| CN106269965B (en) * | 2015-05-29 | 2018-06-15 | 北京有色金属研究总院 | A kind of preparation method of molybdenum-copper silk material |
| CN109732087B (en) * | 2019-01-28 | 2020-04-21 | 中南大学 | Preparation method of powder metallurgy Ti-Ta binary metal-based layered composite material |
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| CN101386948A (en) * | 2008-10-31 | 2009-03-18 | 于洋 | Rolled tungsten-copper alloy material and preparation method thereof |
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