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Rolling process for molybdenum billet plate

A slab and process technology, applied in the field of metal molybdenum slab manufacturing, can solve the problems of poor wear resistance and electrical conductivity, increase the production cost of molybdenum slabs, and cracking of molybdenum slabs, so as to improve wear resistance and electrical conductivity performance, improve machining performance, and reduce production costs

Inactive Publication Date: 2010-09-15
江苏时代华宜电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current powder metallurgy molybdenum billet hot rolling process adopts a straight profile hot rolling roll, which makes the molybdenum billet subject to two-way rolling stress during the rolling process, so the rolled molybdenum billet has cracks and delamination , loose texture and other phenomena seriously affect the manufacturing quality of molybdenum wafers and subsequent processing quality, and increase the production cost of molybdenum slabs. In addition, the molybdenum plates rolled by the above process have poor wear resistance and electrical conductivity.

Method used

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  • Rolling process for molybdenum billet plate
  • Rolling process for molybdenum billet plate
  • Rolling process for molybdenum billet plate

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, the powder metallurgy molybdenum billet 6 is heated in the heating equipment, and then hot-rolled by the first set of corrugated rolls 1, the molybdenum billet 6 is rotated 90 degrees, hot-rolled by the second set of corrugated rolls 2, and then the molybdenum billet 6 Molybdenum slabs are hot-rolled by a set of cylindrical rolls 3 . In the above hot rolling process, the temperature of the hot rolling is 1000° C. to 1450° C., and the temperature of the hot rolling can be determined according to actual needs. Such as figure 2 , 3 As shown, the axial cross-sectional profiles of the driving roll 4 and the driven roll 5 of the first group of corrugated rolls 1 and the second group of corrugated rolls 2 are regular corrugated lines composed of continuous and smooth transitional arcs. Rol...

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Abstract

The invention relates to a method for manufacturing a molybdenum billet plate, in particular to a rolling process for the molybdenum billet plate. In the invention, the molybdenum billet obtained by powder metallurgy is subjected to hot rolling and calendering through a plurality of wavelike rollers and at last one cylindrical roller to undergo three-way compression stress, so that the molybdenum billet plate has a close texture, the machining performance, the wear resistance and the conductivity are improved, cracking and delaminating phenomena of the molybdenum billet plate during the rolling process are avoided and the production cost of the molybdenum billet plate is reduced.

Description

technical field [0001] The invention relates to a method for manufacturing a metal molybdenum blank, in particular to a rolling process of a molybdenum blank. Background technique [0002] Due to its high temperature strength, high temperature hardness and rigidity, molybdenum metal has strong shock resistance and corrosion resistance in various media, good electrical and thermal conductivity, low expansion coefficient and excellent thermal fatigue resistance. Widely used in the electronics industry, national defense industry, boats, heating elements, heat shields, etc. Therefore, the amount of metal molybdenum is increasing in various fields, especially the amount of molybdenum wafers is the largest. At present, molybdenum wafers are usually processed by powder metallurgy molybdenum billets hot rolled into molybdenum billets, so the quality of molybdenum billet rolling process directly affects the subsequent processing quality of molybdenum billets and the quality of molybd...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B37/74
Inventor 陈敏傅蔡安
Owner 江苏时代华宜电子科技有限公司
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