High-strength tin bronze and manufacturing method thereof

The invention discloses high-strength tin bronze and a manufacturing method thereof. The high-strength tin bronze adopts the raw material of smelting QSn-8-2-3 as the raw material; the QSn-8-2-3 contains hydrogen with the mass ratio of 2*10-5*10 and has a cold hardening flow line, the axial tension extension proportion of the cold hardening flow line is 20%-25%, and the rotating angle of the cold hardening flow line is 240-250 degrees. The high-strength tin bronze is excellent in economy and compactness and high in strength and degree of purity. 本发明公开了种高强度锡青铜及其制造方法，该高强度锡青铜以熔炼QSn8-2-3的原材料为原料，其内含有占2×10%-5×10%质量比的氢，并具有20%-25%轴向拉伸伸长比例、240°-250°旋转角度的冷作硬化流线。本发明的高强度锡青铜经济性好、强度高、致密性好、纯净度高。