Roller trio skew rolling method for cold perforating and cold chambering ingot

Abstract

The present invention discloses a roller trio skew rolling method for cold perforating and cold chambering ingot, wherein surface of three rollers of the roller trio skew rolling machine is arranged to be structure having multi-groove, projecting loop, and large distortion zone is formed among the three rollers; casting blank to be processed is transmitted to the large distortion zone among the three rollers to be rolled, meantime, head of the head mechanism is transmitted into the process section; three rollers are rotated at same time to activate the rotation of the rolled piece to produce spire movement and project the processing casting blank. The invention overcomes the defect of pure hot rolling, additional heating device is unnecessary, which saves the equipment advertisement and energy consumption, and achieves perforating and chambering ingot of cold perforating and cold chambering ingot, and roll scale is not produced on the rolling piece.

Description

Technical field: [0001] The invention relates to a metallurgical rolling method. Background technique: [0002] Judging from the current rolling processing methods for producing metal round bars and round tubes at home and abroad, there are mainly two forms: one is the cross rolling in which the axis of the roll is perpendicular to the axis of the rolled piece; the other is cross rolling in which the axis of the roll crosses the axis of the rolled piece , but these two methods are carried out after the blank is heated. [0003] The existing three-roll skew rolling mill needs to adopt the hot rolling method when rolling steel pipes and copper pipes, that is, the cast slab needs to be heated by heating equipment, and a large amount of scale loss is generated before and after rolling, and the surface quality of the rolled piece is poor. The equipment investment is large, the energy consumption is large, and there are defects such as high labor intensity of workers, large envir...

AI Technical Summary

Problems solved by technology

[0003] The existing three-roll skew rolling mill needs to adopt the hot rolling method when rolling steel pipes and copper pipes, that is, the cast slab needs to be heated by heating equipment, and a large amount of scale loss is generated before and after rolling, and the surface quality of the rolled piece is poor. The investment in equipment is large, the energy consumption is large, and there are defects such as high labor intensity of workers, large environmental pollution, troublesome equipment adjustment, etc.

[0004] Judging from the rolling processing equipment currently used in cold rolling, in addition to ordinary tandem rolling mills, there are also Pilger cycle rolling mills and three-roll planetary rolling mills. Although these three types of rolling mills have their own advantages, they all have great defects: tandem rolling mills Generally, a rolling mill can only process a small amount of deformation in one piece of equipment. It is often necessary to connect several pieces of equipment in series or in parallel for continuous rolling. Obviously, the equipment investment is large; Rolling on a certain length of the roll pass area is low in efficiency and poor in economy; although the three-roll planetary rolling mill has many advantages, the product is single and has no perforation performance

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