Converter backing ring body lug fixing assembly welding structure and welding process

A converter support ring and welding structure technology, applied in welding equipment, manufacturing tools, manufacturing converters, etc., can solve the problems of time-consuming and easily damaged body structure, and achieve the effects of stable welding quality, low investment cost and high work efficiency

Active Publication Date: 2021-06-18
ANHUI MA STEEL EQUIP MAINTENANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the background technology, the traditional method of butt-welding the lifting lug group on the support ring is prone to secondary processing or repair of the pin shaft hole, and the bottom welding method is not only time-consuming but also easy to damage the structure of the body when cleaning the root , the present invention provides a fixed pair structure and welding process of the ear seat of the converter support ring body and a welding process, and through welding verification, the present invention can quickly implement and complete the fixed pair welding of the ear seat of the converter support ring body, ensure quality, improve efficacy, and Provides a guarantee for subsequent accurate assembly

Method used

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  • Converter backing ring body lug fixing assembly welding structure and welding process
  • Converter backing ring body lug fixing assembly welding structure and welding process
  • Converter backing ring body lug fixing assembly welding structure and welding process

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Embodiment 1

[0038] Such as Figure 1 to Figure 3 As shown, the present invention is a fixed butt welding structure of the ear seat of the converter support ring body, which includes the converter support ring body 1 and three pairs of ear seats 2 uniformly arranged along the upper surface circumference of the converter support ring body 1, each pair of ear seats 2 It includes a first ear seat 2A and a second ear seat 2B arranged in parallel at intervals, and a shaft hole 22 is opened at the center of the first ear seat 2A and the second ear seat 2B; each pair of ear seats 2 corresponds to The shaft hole 22 is connected and fixed by a fully threaded fixed connecting rod 3 .

[0039] In this embodiment, a K-shaped groove 21 is formed between the bottoms of the first ear seat 2A and the second ear seat 2B and the upper surface of the converter support ring 1 .

[0040]In this embodiment, when each pair of ear sockets 2 is set, the fully threaded fixed connecting rods 3 on both sides of the ...

Embodiment 2

[0044] The present invention is a welding process based on the fixed butt welding structure of the ear seat of the converter support ring body described in Embodiment 1, comprising the following steps:

[0045] Step 1. Preparation before welding;

[0046] 1.1), the welding equipment is: WS-400T manual argon arc welding and manual electrode arc welding combined use welding machine, manual argon arc welding uses carbon steel welding wire ER50-6, gas purity ≥ 99.99%, manual electrode arc welding uses electrode model E5015 ;Nb-500P digital pulse gas shielded welding machine, DC positive connection, welding material selection solid wire ER50-6, carbon dioxide gas purity ≥ 99.8%;

[0047] 1.2), Welding position: horizontal K-groove symmetrical welding;

[0048] 1.3) Cleaning before welding: There should be no oil, oxide layer, moisture, etc. in the welding position area and the welding wire, and the metallic luster should be exposed. Use oxyacetylene flame to remove moisture and oi...

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Abstract

The invention discloses a converter backing ring body lug fixing assembly welding structure. The welding structure comprises a converter backing ring body and three pairs of lugs evenly arranged along the circumference of the upper surface of the converter backing ring body, each pair of lugs comprises a first lug and a second lug, and shaft holes are formed in the centers of the first lugs and the centers of the second lugs; and the shaft holes corresponding to each pair of lugs are connected through a full-thread fixed connecting rod. The welding structure mainly aims at solving the problems that in the prior art, secondary machining or repairing of a pin shaft hole is prone to occurring in a traditional method that lifting lugs are arranged on a backing ring in a paired welding mode, and a backing welding method is time-consuming and prone to damaging the body structure condition during back gouging. By means of the welding structure, converter backing ring body lug fixing assembly welding can be rapidly completed, the quality is ensured, the effect is improved, and a guarantee is provided for follow-up accurate assembling.

Description

technical field [0001] The invention belongs to the field of welding technology, and relates to a butt welding structure and a welding process of a converter support ring body ear seat fixed group. Background technique [0002] At present, the steelmaking converter is gradually developing towards large-scale, and the converter support ring is one of the key equipment of the steelmaking converter body system. Welding and fixing lifting lugs are designed and installed on the converter supporting ring, and then the welding and fixing lifting lugs pass through the pin shaft It is used to connect the converter support ring and the converter body. Due to the large volume and weight of the converter support ring and the converter body, in order to further improve the installation accuracy and welding quality of the fixed lifting lugs during production, the traditional method: 1. Fixing the lifting lugs The group installation is to divide the number of lifting lugs and the installat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46B23K9/16B23K9/235
CPCC21C5/4633B23K9/16B23K9/235
Inventor 范兴海杨西涂俊魁江济张婷婷钟凛陶俊张玉
Owner ANHUI MA STEEL EQUIP MAINTENANCE CO LTD
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