Cutting torch and manufacturing method thereof

Abstract

The invention relates to a cutting torch of a cutting saw for cutting metal and belongs to the field of flame cutting tool. The cutting torch comprises a central tube and an outer housing; the central tube is inserted into the outer housing for assembling; wing platforms are arranged on the outer wall of the central tube and an oxygen passage is arranged inside the central tube; sinking grooves and rib platforms are arranged on the inner wall of the outer housing; after the central tube is inserted into the outer housing, the wing platforms are matched with the sinking grooves, each rib platform on the inner wall of the outer housing and the central tube are contacted with each other for positioning; the central tube and the outer housing are positioned in the radial direction; after the central tube is inserted into the outer housing, a fuel gas passage is formed between the outer wall of the central tube and the inner wall of the outer housing; a fuel gas nozzle is formed by the fuel gas passage at the head end of the cutting torch, which is close to the rib platforms. The invention provides a manufacturing method for cutting torch, the central tube and the outer housing of the cutting torch adopts a powder metallurgy technology and are formed at one step, so that the fabricating technology is simplified, the production efficiency is improved greatly, the utilization rate of the raw material can reach more than 99%, the texture of material can be replaced flexibly according to different performance requirements of the cutting torch.

Description

technical field [0001] The invention relates to a sawing nozzle for cutting metal and belongs to the field of flame cutting tools. Background technique [0002] Gas flame cutting technology is widely used in various manufacturing industries and metal cutting fields in other industries. The equipment used is a cutting torch, and the cutting nozzle is an important part of the cutting torch, which is very important to the performance of the entire cutting torch. The nozzle is generally composed of three parts: the cutting nozzle core seat, the cutting nozzle core and the cutting nozzle jacket, and the three parts are connected by threads. The typical example is the jet-suction welding and cutting torch that is widely used now. my country formulated and implemented standards related to this product in 1985 (national standard GB5110-85, Ministry of Machinery standard JBT6969-1993). Until now, most manufacturers still The production of cutting nozzle products is based on this stan...

AI Technical Summary

Problems solved by technology

Traditional cutting nozzles are generally produced by mechanical processing, and they have to go through dozens of processes such as turning, drilling, and tapping. The materials are generally brass and copper. dismantle

During the use of the cutting nozzle, the slag is easy to block the nozzle. The traditional cutting nozzle is not easy to disassemble, so the slag cannot be cleaned, and the cutting nozzle can only be replaced.

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