Manufacturing method of cutting nozzle applied to welding gun

Abstract

The invention relates to a cutting nozzle applied to a welding gun, which comprises a cutting nozzle body (1), wherein the cutting nozzle (1) is made from a tellurium copper material and vent holes on the cutting nozzle body (1) are drilled by a drilling machine. The method for manufacturing the cutting nozzle comprises the following steps: material selection: selecting a tellurium copper round bar, cutting off the tellurium copper round bar, flattening the front end face and the rear end face, and performing metalworking on a concave surface (12) of the rear end; hole drilling: drilling holes on a blank with the concave surface (12) through the metalworking; forging and stamping: performing once forging and stamping on the vent holes at the front end; dimension processing: performing angle outer diameter processing at the front end, performing matched angle processing at the rear end, and performing washing with hot water; and finished product: performing flame test on the processed cutting nozzle (1), rolling characters, performing surface treatment and obtaining the finished product through packaging. The cutting nozzle has the advantages that: by adopting the tellurium copper as the raw material instead of red copper, the fastening performance of the tellurium copper is good; the stickness is lower than that of the red copper; the vent holes are not easy to block; the tellurium copper has better heat resistance and long service life; the drilling machine hole drilling is adopted to replace artificial hole drilling and most of the forging and stamping process steps so that the workload is greatly reduced, and the quality of the formed vent holes is ensured effectively, the drilled vent holes are more normative, and the drill ways are smoother; and the manufacturing procedures are reduced.

Description

technical field [0001] The invention relates to a cutting tip used on a welding and cutting torch and a manufacturing method thereof. Background technique [0002] At present, the domestically-used jet-suction integral cutting nozzle is generally made of T2 copper, and the product is mainly processed through annealing, drilling, forging, gold processing, testing and other processes, see Figure 4 As shown, there are certain shortcomings in the products processed by this process: 1. The processing technology is complicated, and a product needs more than 30 processes from material to finished product, which is time-consuming and labor-intensive, resulting in cost of money; Forging and gold processing are mixed, the shape of the internal hole is irregular, and even cracks appear in two adjacent holes; 3. The power consumption is large, and the product is mechanically processed more, which increases the power consumption, and the annealing of the material consumes more power, res...

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Problems solved by technology

[0002] At present, the domestically-used jet-suction integral cutting nozzle is generally made of T2 copper, and the product is mainly processed through annealing, drilling, forging, gold processing, testing and other processes, see Figure 4 As shown, there are certain shortcomings in the products processed by this process: 1. The processing technology is complicated, and a product needs more than 30 processes from material to finished product, which is time-consuming and labor-intensive, resulting in cost of money; Forging and gold processing are mixed, the shape of the internal hole is irregular, and even cracks appear in two adjacent holes; 3. The power consumption is large, and the product is mechanically processed more, which increases the power consumption, and the annealing of the material consumes more power, resulting in high production cost; 4. Due to the relative viscosity of T2 copper, the product will often block the pores due to the viscosity during use, resulting in a reduction in the service life of the product

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