Low-temperature rolling method for preparing molybdenum-copper alloy
A technology of molybdenum-copper alloy and rolling speed, which is applied in the direction of metal rolling, can solve the problems of low processing efficiency, poor processing accuracy, and large equipment investment, and achieve high production efficiency, improved material utilization rate, and low equipment investment. Effect
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Embodiment 1
[0042] A molybdenum-copper alloy sintered blank with a weight percentage of 20% copper and 80% molybdenum is obtained by powder rolling process, and its thickness is 0.5mm; The alloy billet is preheated to 40-100°C in an oven, and the heat preservation time is 5-8min; then the preheated molybdenum-copper alloy billet is quickly rolled directly on a twenty-roller plate rolling mill, and the processing amount per pass is less than or equal to 45%. The rolling speed is 8m / s; when the processing volume of the pass is reached, the molybdenum-copper alloy billet is quickly put into the oven and kept at a temperature of 40-100°C for 5-8min, and then rolled again; so after 3 passes Rolling can produce a molybdenum-copper alloy foil with a thickness of 0.25mm. After measurement, the density of the molybdenum-copper alloy foil can reach 99.95%, the thickness tolerance is 3 microns, the surface roughness is Ra0.05, and the input-output ratio reaches 89%.
Embodiment 2
[0044] A molybdenum-copper alloy sintered blank with a weight percentage of 25% copper and 75% molybdenum is prepared by powder molding process, and its thickness is 1.5mm; the rolls of the two-roll plate mill are preheated to 40-80°C; the molybdenum-copper alloy blank is Preheat in an oven to 40-90°C, keep warm for 10-15min; then quickly roll the preheated molybdenum-copper alloy billet directly on a two-roll plate rolling mill, the processing amount per pass is less than or equal to 45%, and the rolling speed It is 15m / s; when the processing volume of each pass is reached, the molybdenum-copper alloy billet is quickly put into the oven at a temperature of 40-90°C for another 10-15min, and then rolled again; after 5 passes of rolling, A molybdenum-copper alloy foil with a thickness of 0.05 mm can be obtained. After measurement, the density of the molybdenum-copper alloy foil can reach 99.95%, the thickness tolerance is 3 microns, the surface roughness is Ra0.05, and the input...
Embodiment 3
[0046] A molybdenum-copper alloy sintered blank with a weight percentage of 20% copper and 80% molybdenum is obtained by powder rolling process, and its thickness is 0.5mm; The alloy billet is preheated to 40-100°C in an oven, and the heat preservation time is 5-8min; then the preheated molybdenum-copper alloy billet is quickly rolled directly on a twenty-roller plate rolling mill, and the processing amount per pass is less than or equal to 55%. The rolling speed is 8m / s; when the processing volume of each pass is reached, the molybdenum-copper alloy billet is quickly put into the oven at a temperature of 150-260°C for another 5-8min, and then rolled again; so after 2 passes Rolling can produce a molybdenum-copper alloy foil with a thickness of 0.05mm. After measurement, the density of the molybdenum-copper alloy foil can reach 99.5%, the thickness tolerance is 3 microns, the surface roughness is Ra0.05, and the input-output ratio reaches 85%.
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