The CuSn10 P1 alloy semi-solid slurry was prepared by the melt-constrained flow-induced nucleation device

and the semi-solid rheological extrusion test was carried out on a hydraulic press using a self-designed mold. The influence of the ingate length on the microstructure and mechanical properties of semi-solid rheological extrusions was investigated. The results show that as the length of the sprue increases

the uniformity of the structure is increased at first and then decreased

which presents desirable when the length of the sprue is 20 mm. When the length of the ingate reaches above 30 mm

there is an obvious solid-liquid separation phenomenon. As the length of the ingate increases

the tensile strength and elongation are increased at first and then decreased. When the length of the ingate is 20 mm

the tensile strength and plasticity of the casting are satisfied.