Forging method for petroleum valve block of fracturing pump

The invention relates to a forging method for a petroleum valve block of a fracturing pump. The forging method for the petroleum valve block of the fracturing pump comprises the following main steps of performing annealing treatment on a cylindrical steel ingot subjected to electroslag remelting treatment; horizontally placing the cylindrical steel ingot on a lower flat anvil, clamping one end ofthe cylindrical steel ingot through a clamping device, rotating the cylindrical steel ingot, and simultaneously, down-pressing the surface of the cylindrical steel ingot by using an upper/lower flat anvil; obliquely placing the steel ingot on the lower anvil through the clamping device, rotating the steel ingot, simultaneously, down-pressing the edge position of the upper end part of the steel ingot by using an upper flat anvil, and then placing the steel ingot in a furnace for heating; vertically placing the steel ingot on the lower anvil, forging the end part of the steel ingot until annularplanes at the two ends of