Sintering and manufacturing method of low temperature glass solder preform and application of glass solder preform

摘要

Sintering and manufacturing method of low temperature glass solder preform for solving the problem that the granulation process of glass powder is complicated in the problem of complicated porosity, impurity incorporation, and strength securing in the bonding of aluminum matrix composite by glass solder paste To provide an application of the glass solder preform.Solution: a mold is designed on the basis of the shape of the welding test piece, and the low temperature glass powder is introduced into the mold cavity, and the glass solder precursor is sintered under the action of the locking block under the conditions of 20 to 40 ° C. higher than the softening point of the low temperature glass powder.The glass solder preform is assembled in the center of the welding test piece, put into the welding fixture, transferred to the atmosphere sintering furnace, and sintered, and after forming the low temperature glass solder layer in the center after completion of sintering, the test piece after welding is obtained.The present invention is used for bonding between aluminum matrix composite material having a high volume fraction or bonding of aluminum matrix composite and glass with high body percentage.Diagram