Manufacturing method of crisscross cooling flow channel structure

Abstract

The invention discloses a manufacturing method of a crisscross cooling flow channel structure. The manufacturing method comprises the following steps that a plurality of communicated flow channel grooves are machined in the outer surface of a four-way joint in the axial direction; a plurality of positioning teeth uniformly distributed along circumference of each channel of the four-way joint are machined at the outer end of each channel of the four-way joint to obtain a four-way joint inner sleeve; an upper shell body matched with the upper part of the four-way inner sleeve and a lower shell body matched with the lower part of the four-way inner sleeve are respectively machined; adhesive tape brazing filler metal is laid on the inner surface of the upper shell body and the inner surface of the lower shell body, after the upper shell body, the lower shell body and the four-way inner sleeve are compacted and assembled, vacuum brazing is carried out, and a primary brazing assembly is obtained; an inlet flange and an outlet flange are installed at the inlet end and the outlet end of the primary brazing assembly respectively; and pasty brazing filler metal coats and is injected at the contact position of a plug, a filler neck and the primary brazing assembly and the contact position of the plug and a lengthened filler neck, vacuum brazing is carried out, and the crisscross cooling runner structural part is obtained. According to the method, the machining difficulty is reduced, the fitting rate of the fitting surfaces of the parts is guaranteed, and the machining precision is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of workpiece processing, and relates to a method for manufacturing a cross cooling channel structure. Background technique [0002] The four-way mixing chamber consists of a four-way inner sleeve, an upper shell, a lower shell, an inlet flange, an outlet flange, and some nozzles and plugs. Its structure diagram is as follows: figure 1 Shown is the structure diagram of the four-way mixing chamber. All the parts above the four-way mixing chamber are connected by vacuum brazing to obtain a four-way mixing chamber, which is a cross cooling channel structure. Since the four-way inner sleeve is a cross-section part with uniformly distributed flow channel grooves in four directions, the processing difficulty of the four-way inner sleeve during brazing lies in the perpendicularity of the two axes and their coaxiality, so If the perpendicularity and coaxiality of the two axes of the four-way inner sleeve cannot be ...

AI Technical Summary

Problems solved by technology

Since the four-way inner sleeve is a cross-section part with uniformly distributed flow channel grooves in four directions, the processing difficulty of the four-way inner sleeve during brazing lies in the perpendicularity of the two axes and their coaxiality, so If the perpendicularity and coaxiality of the two axes of the four-way inner sleeve cannot be guaranteed, the accuracy of the parts is difficult to guarantee

Images