Rotating pulse cold forging unit for steel tube

Abstract

The invention discloses a rotating pulse cold forging unit for a steel tube. The rotating pulse cold forging unit comprises an axial conveyer used for conveying a mother tube forwards, a radial cold forging machine used for performing cold forging processing on the mother tube, and an axial traction machine used for pulling a finished tube forwards after the tail end of the mother tube leaves the axial conveyer which are sequentially arranged in the forward direction of the steel tube. According to the rotating pulse cold forging unit, through high frequency pulse continuous reciprocating motion, the forging processing of diameter decreasing and wall thickness decreasing of the mother tube is achieved, the cold forging production speed is greatly increased and can reach 1 to 4 m / min, the dimensional accuracy of the steel tube subjected to cold forging is relatively high, and the purpose of non-cutting processing can be achieved; the mechanical property of a product is good, the surface rigidity is improved, and the tensile strength, yield strength and fatigue strength are improved; the deformation stress of ingredients is eliminated, and the failure treatment is not needed; and the procedures like head driving, pickling, saponification and phosphorization are not needed, so that the rotating pulse cold forging unit does not cause any pollution to the environment.

Description

technical field [0001] The invention relates to a steel cold forging equipment, in particular to an equipment for cold forging steel pipes. Background technique [0002] In recent years, with the rapid development of the economy and the continuous improvement of the level of science and technology, my country's industrial production field has more requirements for steel pipe specifications and higher precision requirements. However, although the cold-drawn steel pipe is fast, the deviation correction ability is not strong, the processing accuracy is not high, and the utilization rate of the steel pipe is low; the cold-rolled steel pipe has high processing accuracy, good inner and outer surface finish, but the production speed is slow and the processing efficiency is low. , the output per minute is only about 500mm, which is difficult to meet the production requirements of large quantities of steel pipes. [0003] More importantly, no matter the cold drawing process or the col...

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Problems solved by technology

[0002] In recent years, with the rapid development of the economy and the continuous improvement of the level of science and technology, my country's industrial production field requires more steel pipe specifications and higher precision requirements. However, although the cold-drawn steel pipe is fast, the deviation correction ability is not strong, the processing accuracy is not high, and the utilization rate of the steel pipe is low; the cold-rolled steel pipe has high processing accuracy, good inner and outer surface finish, but the production speed is slow and the processing efficiency is low. , the output per minute is only about 500mm, which is difficult to meet the production requirements of large quantities of steel pipes

[0003] More importantly, no matter the cold drawing process or the cold rolling process, it must go through complex auxiliary treatment processes, such as pickling, phosphating, saponification, furnace annealing, etc. There are many production processes, high product costs, and environmental impact. Serious pollution, does not meet the policy requirements of energy conservation and emission reduction

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