Welding method of fire-fighting pressure reduction pump

A welding method and technology of decompression pump, applied in welding equipment, welding equipment, auxiliary welding equipment and other directions, to achieve the effect of high surface finish, high repair efficiency and good effect

Inactive Publication Date: 2016-11-23
GUANGXI ANXUN TECH INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical result that this invention provides for better maintenance after being installed on an engine by replacing damaged parts with new ones instead of discarding them altogether or rebuilding it afterwards.

Problems solved by technology

This patented describes how it's important for firefighting equipment like firepumps to have an effective system that can deliver high-quality liquids quickly without causing damage in case of fires.

Method used

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Embodiment Construction

[0010] The technical solutions of the preferred embodiments of the present invention are described in detail below.

[0011] The welding method of the fire decompression pump includes the following steps. 1. Before welding, the welding place must be cleaned, the welding meat of the original cracked part should be removed, and the cracked part should be planed with a cross-phase grinder or carbon arc gouging. The iron oxide must be polished clean; 2. Preheat before welding, preheat at the welding position, then use intermittent welding, dispersion welding or hammering after welding, use a hammer to hit the weld and the edge of the weld, and wait until it is completely welded Hit with a hammer until the weld seam cools; the second step is to water-cool the weld in time every time the welding is stopped, and the temperature of the interlayer is controlled below 50°C. 3. The welding between the fire decompression pump and the fixed pipeline must ensure penetration, and then add a bac

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PUM

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Abstract

The invention discloses a welding method of a fire-fighting pressure reduction pump. The method is characterized by comprising the following steps: firstly, before welding, the welding position must be cleaned up, the welding metal at the original cracking portion is taken away, polishing through an alternating phase polishing machine or carbon arc air gouging is used, and after the cracking portion is gouged, ferric oxide must be cleaned up through polishing; secondly, before welding, preheating is carried out, preheating is carried out on the welding position, intermittent welding, dispersed welding or after-welding hammering is adopted, a hammer is used for knocking the welding line and the welding line edge, and after complete welding, the hammer is used for knocking until the welding line is cooled; and thirdly, it is ensured that the fire-fighting pressure reduction pump and a fixed pipeline welding must be thoroughly welded, and a back plate is additionally arranged on the outer side of the pipeline.

Description

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Claims

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Application Information

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Owner GUANGXI ANXUN TECH INVESTMENT CO LTD
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