The defects of tin bronze plate mainly show that the structure design of the casting is unreasonable, there are sharp corners, and the wall thickness of the casting is too different. Sand type (core) poor concession; Local overheating of the casting; Casting temperature is too high; Early removal of castings from the self-casting mold; Heat treatment overheating or overburning, excessive cooling rate.

Methods to prevent defects of tin bronze casting: improve the structure design of the casting, avoid sharp corners, and strive for uniform wall thickness and smooth transition; Take measures to increase sand (core) concession; Ensure that all parts of the casting solidify simultaneously or sequentially, improve the design of pouring system; Appropriately reduce the pouring temperature; Control the cooling time of casting mold; The thermal correction method is adopted when the casting is deformed. Control the heat treatment temperature correctly to reduce the quenching cooling rate.

Through horizontal continuous casting - extrusion - drawing process, tin bronze tube and rod of various specifications are produced for instrument industry, communication equipment industry, industrial sewing machine industry, new energy car washing, motorcycle industry and other industries.