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18-07-2023 дата публикации

Method for controlling combined brazing gap of ultrathin sheet metal part and machined part

Номер: CN116441657A
Автор: KIM GON-JA, JIAN YUANYUAN, CHEN YA, CHENG QI, YUAN NANXIANG, TANG JUNLI, LIU YU
Принадлежит:

The invention discloses an ultrathin sheet metal part and machining part combined brazing gap control method, a sheet metal part is provided with an inner hole attached to an outer ring of a machining part, the technical requirement for the roundness of the inner hole of the sheet metal part is B, and the technical requirement for the size of the outer ring of the machining part is that the control method comprises the following steps that S1, the inner diameters of the opening part, the middle part and the root part of the inner hole of the sheet metal part are measured, obtaining an inner diameter minimum value phi Min and an inner diameter maximum value phi Max; s2, the matching size phi A of the machined part is adjusted according to phi Max + x1 < = phi A < = phi Min + x2; s3, when the sheet metal part and the machined part are subjected to matched turning, the roundness C and Clt are guaranteed; b; s4, after assembling is completed, the welding face of the machined part is covered ...

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Номер записи: 1
07-04-2023 дата публикации

Vacuum brazing process for aero-engine combustion chamber casing

Номер: CN115922005A
Автор: JIAN YUANYUAN, ZHANG ZHIYUAN, WANG XINGGUO, CHEN QUPING, KIM GON-JA, WANG BIN, FENG DONGWEN
Принадлежит:

The invention discloses a vacuum brazing process for an aero-engine combustion chamber casing. The vacuum brazing process comprises the following steps: repairing a brazing surface of a mounting seat through a bench worker; nickel is brushed on the brazing surface of the corresponding mounting seat on the shell, and nickel is electroplated on the mounting seat; amorphous brazing filler metal sheets are cut according to the shapes of the to-be-welded faces of all the mounting bases, and then the amorphous brazing filler metal sheets are positioned on the mounting bases through an energy storage spot welding machine; the mounting bases are combined to the shell, argon arc welding positioning is carried out, and a cartridge receiver assembly is formed; uniformly mixing nickel powder and brazing filler metal according to a proportion, adding a binder to form paste mixed brazing filler metal, adding the paste mixed brazing filler metal to two sides of the argon arc welding point, and adding ...

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Номер записи: 2