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Large forged steel bd roll forging method

A forged steel, large-scale technology, applied in the field of large-scale forged steel BD roll forging, can solve the problems of long forging time, many fires, waste of resources, etc.

Active Publication Date: 2017-09-29
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing technology requires many times of firing, waste of resources and long forging time

Method used

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Effect test

Embodiment Construction

[0012] Below in conjunction with embodiment the present invention is described in further detail:

[0013] The invention relates to a forging method of a large forged steel BD roll. Compared with the traditional forging method, the method saves the process of trimming and rounding, and performs the simplest operation on the secondary processes that do not affect the forming structure, so that The forging time is greatly saved, and the entire forming and forging process can be completed in one fire.

[0014] A BD roll forging method for large-scale forged steel, the method forges a steel ingot into shape in one shot, specifically comprising the following steps:

[0015] ① Press the handle on the rising end of the steel ingot, and only press the simple shape of the handle to facilitate the clamping in the subsequent process. After pressing the handle, perform chamfering;

[0016] ②The main deformation is forged immediately after chamfering, and the upper and lower wide flat anv...

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PUM

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Abstract

The invention discloses a large-scale forged steel BD roll forging method, which specifically includes the following steps: ① Pressing the steel ingot riser, only pressing the simple shape of the handle, so as to facilitate clamping in the subsequent process, after pressing the handle, perform chamfering 2. Immediately after chamfering, the main deformation is forged, and the upper and lower wide flat anvils are used for forging; 3. Immediately after the main deformation is forged, the roll body is rounded, and the roll body is left with a margin, and then the roll necks at both ends are forged to form; in the forging process of the present invention, The pressing process only carries out simple shape forging, and at the same time saves the process of cutting off the remaining material. After chamfering, no rounding is performed. The main deformation forging elongation reduction rate is 15‑25%, so that the forging time of the entire forging process is greatly reduced. Reduced, it can be forged into shape in one fire.

Description

technical field [0001] The invention belongs to the forging field of steel material processing, and in particular relates to a large-scale forged steel BD roll forging method. Background technique [0002] When forging and producing large forged steel BD rolls (BD roll is the abbreviation of section steel rough rolling pair rolls), the existing forging process generally adopts the process of pressing chamfered edges, rounding, upsetting, pre-drawing, and drawing out the finished product. Three fires completed. The existing process requires many firing times, wastes resources, and takes a long time for forging. Contents of the invention [0003] The technical problem to be solved in the present invention is to provide a BD roll forging method for large-scale forged steel formed by one-shot forging. [0004] In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: [0005] A BD roll forging method for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/00
Inventor 王永军李建辉
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL