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H-shaped steel machining method and device

A processing device and processing method technology, applied in the direction of metal rolling, etc., can solve the problems that affect the internal structural properties, hardness, strength and toughness of steel and fail to achieve better results.

Active Publication Date: 2021-01-22
山东润金重工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production technology of H-shaped steel is relatively mature, and the process-based production ensures certain production efficiency and structural characteristics of H-shaped steel. The rough rolling process step in the processing of H-shaped steel is very important. This process is not only the key to the forming of H-shaped steel, but also the processing method. It directly affects the internal structure and characteristics of the steel. Although the efficiency of the existing rough rolling processing is guaranteed, the hardness, strength and toughness of the product have not achieved better results.

Method used

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  • H-shaped steel machining method and device

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Effect test

Embodiment 1

[0039] see figure 1 , a kind of H-shaped steel, comprising: a web and flange plates fixed at both ends, the flange plates are arranged symmetrically, the web is arranged at the center position between the flange plates, and the flange plate and the web Fixed connection, the inner wall of the flange plate is inclined, and the wall thickness of the flange plate near the web is greater than the wall thickness of the two ends of the flange plate.

[0040] 2. A method for processing H-shaped steel according to claim 1, characterized in that it comprises the following steps:

[0041] 1) Pretreatment: use roller grinding to grind the rusted part on the surface of the steel billet, weigh the polished steel billet, and select the steel billet in the qualified weight area;

[0042] 2) Heating: the pretreated billet is heated in a walking furnace, and the heating temperature is controlled at 1250°C-1300°C;

[0043] 3) Rough rolling: introduce the heated billet into the rough rolling me...

Embodiment 2

[0060] An H-shaped steel, comprising: a web and flange plates fixed at both ends, characterized in that the flange plates are arranged symmetrically, the web is arranged at the center between the flange plates, and the flange plates Fixedly connected with the web, the inner wall of the flange plate is inclined, and the wall thickness of the flange plate near the web is greater than the wall thickness of the two ends of the flange plate.

[0061] 2. A method for processing H-shaped steel according to claim 1, characterized in that it comprises the following steps:

[0062] 1) Pretreatment: use roller grinding to grind the rusted part on the surface of the steel billet, weigh the polished steel billet, and select the steel billet in the qualified weight area;

[0063] 2) Heating: the pretreated billet is heated in a walking furnace, and the heating temperature is controlled at 1250°C-1300°C;

[0064] 3) Rough rolling: introduce the heated billet into the rough rolling mechanism...

Embodiment 3

[0081] An H-shaped steel, comprising: a web and flange plates fixed at both ends, characterized in that the flange plates are arranged symmetrically, the web is arranged at the center between the flange plates, and the flange plates Fixedly connected with the web, the inner wall of the flange plate is inclined, and the wall thickness of the flange plate near the web is greater than the wall thickness of the two ends of the flange plate.

[0082] 2. A method for processing H-shaped steel according to claim 1, characterized in that it comprises the following steps:

[0083] 1) Pretreatment: use roller grinding to grind the rusted part on the surface of the steel billet, weigh the polished steel billet, and select the steel billet in the qualified weight area;

[0084] 2) Heating: the pretreated billet is heated in a walking furnace, and the heating temperature is controlled at 1250°C-1300°C;

[0085] 3) Rough rolling: introduce the heated billet into the rough rolling mechanism...

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Abstract

The invention provides an H-shaped steel machining method and device. The H-shaped steel machining device comprises webs and flange plates fixed to the two ends, wherein the flange plates are symmetrically arranged, the webs are arranged in the center between the flange plates, the flange plates are fixedly connected with the webs, the inner walls of the flange plates are in an inclined plane shape, and the thickness of the walls, close to the webs, of the flange plates is greater than the wall thickness of the two ends of the flange plates. Bearing rollers are adopted for stably guiding products, the products are pushed by side pressing mechanisms to transversely move and change the position within a short distance, rolling mechanisms can conveniently conduct multi-procedure machining onthe products, multiple rough rolling procedures are subsequent, machining is convenient and fast, and efficiency is high; due to the lifting design of a bearing table, compression of rough rolling pressure on transmission equipment is effectively avoided, and protection on the equipment is improved; and meanwhile, alternate machining of corrugated rough rolling and flat pressing rough rolling is adopted, the mechanical property of H-shaped steel is effectively improved, the internal metal structure of the H-shaped steel is optimized, and the strength, hardness and toughness of the H-shaped steel are improved.

Description

technical field [0001] The invention relates to the technical field of H-shaped steel processing, in particular to an H-shaped steel processing method and device. Background technique [0002] H-shaped steel is an economical cross-section high-efficiency profile with more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". Since all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance in all directions, simple construction, cost saving and light structural weight, and has been widely used. [0003] The production technology of H-shaped steel is relatively mature, and the process-based production ensures certain production efficiency and structural characteristics of H-shaped steel. The rough rolling process step in the processing of H-shaped steel is very important. This process is not onl...

Claims

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Application Information

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IPC IPC(8): B21B1/088B21C37/00
CPCB21B1/088B21C37/00Y02P70/10
Inventor 任启朋刘萍李谨娟
Owner 山东润金重工科技有限公司