| abstract |
The present invention relates to a kind of hydraulic pumps, belong to field of mechanical technique.The hydraulic pump of the present invention, including housing, pedestal, motor, the housing includes base, buffer layer and anticorrosion layer successively, the base includes the component of following mass percent, 0.15 0.25%C, 0.17 0.37%Si, 0.50 0.80%Mn, 0.80 1.10%Cr, 0.6 0.9%Ni, 0.5 0.7%Cu, 0.1 0.5%Ag, 0.3 0.45%Mo, 0.3 0.5%N, 0.1 0.2%Gd, 2.6 5.5% carbon fibers, 5.8 7.9% nanometers of CBN, P≤0.030%, S≤0.030%, surplus Fe.The gear pump of the present invention has the characteristics that noise is small, corrosion-resistant, service life is long. |