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Blank preparation process for shafts

A preparation process and shaft blank technology, applied in the field of shaft blank processing, can solve the problems of high management cost, difficulty in unified coordination and control, scattered management and quality control, etc., to achieve less material burning loss, reduction of production and logistics links, management and Easy effect of quality control

Inactive Publication Date: 2014-09-17
宋佳骏
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the existing process involves multiple production enterprises such as steelmaking, steel rolling, forging, heat treatment, etc., management and quality control are scattered, it is difficult to coordinate and control in a unified manner, and the total management cost is also high

Method used

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Embodiment Construction

[0018] The present invention will be further described below in combination with specific embodiments.

[0019] The blank preparation process of the shaft of the present invention, its preparation steps are:

[0020] 1) Firstly, the scrap steel is smelted to produce molten steel that meets the requirements of the shaft billet; during smelting, the element composition and content are increased or decreased according to the composition requirements of the shaft billet.

[0021] 2) When the obtained molten steel is at 1680-1580°C, pour it into the continuous casting machine and draw it into a round billet with a certain diameter, and then cut the drawn round billet to the required length at the temperature of 1350-1200°C; When shearing, it moves synchronously with the billet, so as not to affect the forming process of the billet, and returns to the original position after shearing.

[0022] 3) The sheared billet is cross-rolled at a temperature of 1200-900°C into a semi-fini...

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Abstract

The invention discloses a shaft blank preparation process. The scrap steel is smelted into qualified molten steel and poured into a continuous casting machine at 1680-1580°C to draw a round billet with a certain diameter; it is cut to a required length at 1350-1200°C; The rolled steel billet is cross-rolled at 1200-900°C to form a semi-finished shaft billet, and the shape of the semi-finished shaft billet is the final shape of the shaft billet; finally, according to the technological requirements and internal components of the shaft billet, the waste heat is used for corresponding heat treatment and shot blasting, so that Produce the required blanks. The invention utilizes the residual heat of molten steel and the characteristic law of steel during the cooling process, and continuously completes the whole technological process on the same production line. The patent reduces production and logistics links, utilizes waste and saves energy, reduces consumption and emission, improves efficiency, reduces costs, and improves economic and social benefits.

Description

technical field [0001] The invention relates to the improvement of shaft blank preparation technology and belongs to the technical field of shaft blank processing. Background technique [0002] Shaft parts are used in many equipments and occasions. The finished shaft parts are obtained by processing the shaft blanks, that is, there are shaft blanks (referred to as shaft blanks) first, and then there are shaft parts. At present, almost all shaft rough production enterprises purchase finished steel or cast steel as raw materials, and then process them to the required weight and size by sawing, chopping, etc. after transporting them back, and then heat them up to a certain temperature for various forgings. Processing, cooling and then reheating for heat treatment and other processes. The price of raw materials in this production process is high, there are many production and logistics links, and two more heating must be added. Long cycle, serious environmental pollution, high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
Inventor 宋佳骏
Owner 宋佳骏
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