Manufacturing method of swirl nozzle

Abstract

The invention provides a manufacturing method of a swirl nozzle. The manufacturing method comprises the following steps that (1), a mold is designed, solid powder and a binder are selected, and design of the mold comprises the swirl nozzle structure and the cavity size; (2), feed is manufactured, specifically, the solid powder and the binder are placed into an internal mixer to be subjected to banburying according to the preset volume ratio, and the feed is manufactured through granulation of a granulator; (3), injection molding is conducted, specifically, the feed is injected into the mold through an injection machine, and an injected blank is obtained; (4), degreasing is conducted, specifically, the injected blank is placed into extraction oil to be steeped, part of the binder is removed, and a degreased blank is manufactured; and (5), sintering is conducted, specifically, the degreased blank is placed a vacuum and degreasing integrated furnace to be sintered. According to the manufacturing method, the swirl nozzle can be formed at a time, a plurality of times of machining for the outline structure of the swirl nozzle is reduced, the manufacturing difficulty is lowered, cost is reduced, machining efficiency is improved, and materials are saved; and meanwhile through mold design, the product precision is higher, and product consistency and interchangeability are ensured.

Description

technical field [0001] The invention relates to a method for manufacturing a nozzle, in particular to a method for manufacturing a swirl nozzle. Background technique [0002] The structure of the swirl nozzle is complex and the hardness of the material is high. The existing mechanical manufacturing method is: using powder metallurgy method, first produce a columnar product with an internal through hole, then process the external circular structure through a grinding machine, and then use electric processing. A plurality of curved grooves evenly distributed on the processing side, although this method can be used to make the swirl nozzle, but there are many processes, and the shape and structure of the swirl nozzle need to be processed many times, resulting in low processing efficiency and high cost. Contents of the invention [0003] Based on this, a method for manufacturing a swirl nozzle with high efficiency is provided. [0004] A method of manufacturing a swirl nozzle...

AI Technical Summary

Problems solved by technology

[0002] The structure of the swirl nozzle is complex and the hardness of the material is high. The existing mechanical manufacturing method is: using powder metallurgy method, first produce a columnar product with an internal through hole, then process the external circular structure through a grinding machine, and then use electric processing. Process multiple curved grooves evenly distributed on the side. Although this method can be used to make swirl nozzles, there are many processes and the shape and structure of the swirl nozzles need to be processed many times, resulting in low processing efficiency and high cost.