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Welding method of H-type steel member

A welding method and H-shaped steel technology, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of cumbersome steps and high cost, and achieve the effect of accurate size, smooth surface and simple welding method

Inactive Publication Date: 2016-04-06
ANHUI WEIHONG STEEL STRUCTURE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The welding method steps of the prior art H-shaped steel are cumbersome and costly

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A welding method for H-shaped steel members, comprising the following steps:

[0018] 1. Parts blanking: H-shaped steel flanges and webs are vertically blanked on both sides at the same time by a straight cutting machine, and irregular parts are blanked by a CNC cutting machine.

[0019] 2. Assembly: Check the cutting quality of the appearance of the parts. There are no gaps or burrs on the cutting surface. When the depth of the gap is less than 5mm, perform grinding and smooth transition. If it exceeds 5mm, repair welding. The burrs should be polished clean. Check and confirm, grind the groove surface and accessories within 50mm, remove cutting slag and scale debris, and grind the transition section at the groove transition to make it smooth; use artificial tire frame to assemble H-shaped steel.

[0020] In order to effectively control the excessive deformation of the main weld of the H-shaped steel member after welding, the amount of anti-deformation should be reserve...

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Abstract

The invention discloses a welding method of an H-type steel member. The welding method comprises the following steps of part blanking, wherein as for a wing plate and a web of H-type steel, a straight strip cutting machine is adopted for carrying out vertical blanking on two faces at the same time, and a numerical control cutting machine is adopted for carrying out blanking on irregular parts; assembling, wherein the appearance cutting quality of the parts is checked, no gap or burr exists on cut faces, and a manual jig frame is adopted for assembling the H-type steel; welding, wherein two manners of n-shaped submerged-arc welding and cart type submerged-arc welding are adopted, welding is finished, and slags and splash in a welding seam area are removed; correction, wherein no concave face or damage or scratch exists on corrected surfaces; cutting-off, wherein allowance cutting is carried out on the two ends of the H-type steel, and grinding and leveling are carried out after cutting; and locking, wherein marking is carried out, manual cutting is adopted, and flat grinding is achieved. The welding method is simple, the surface of the machined H-type steel is flat, the size is accurate, and consistency is good.

Description

technical field [0001] The invention belongs to the field of welding, in particular to a welding method for H-shaped steel components. Background technique [0002] H-shaped steel is an economical cross-section high-efficiency section 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-beam are arranged at right angles, the cross-section shape of the H-beam is economical and reasonable, and the mechanical properties are good. When rolling, the extension of each point on the cross-section is relatively uniform and the internal stress is small. Compared with ordinary I-beams, it has a large section modulus. , light weight, and metal-saving advantages can reduce the building structure by 30-40%; and because the inside and outside of the legs are parallel, and the legs are at right angles, they can be assembled and combined into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K103/04
CPCB23K31/02B23K2103/04
Inventor 曹雁冰
Owner ANHUI WEIHONG STEEL STRUCTURE GRP
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