▎ 摘　　要

NOVELTY - Producing high chromium alloy hammer heads involves adding 10-20 pts. wt. titanium dioxide, 20-30 pts. wt. chromium oxide, 10-15 pts. wt. boron oxide, 20-30 pts. wt. graphene oxide, 10- 15 pts. wt. aluminum powder, 40 to 50 pts. wt. sodium carboxymethyl cellulose, 80-100 pts. wt. water, after kneading under an inert gas protection state. The temperature is raised to above 1200 degrees C, and after the heat preservation reaction, grinding is performed to obtain an aluminum titanium chromium boron compound. The 80 to 150 pts. wt. ferrochrome powder, 30 to 40 pts. wt. aluminum titanium chromium boron compound, 10 to 15 pts. wt. PVDF, 100 to 150 pts. wt. solvent, 1 to 3 pts. wt. emulsifier, 0.1-0.3 pts. wt. defoamer are added and mixed by ball milling to obtain alloy coatin. The polystyrene foam is used as the base material to cut the mold, and then applied alloy coating on the surface of the mold, heated and dried. USE - Method for producing high chromium alloy hammer heads. ADVANTAGE - The method enables to produce high chromium alloy hammer heads that has good impact toughness and abrasion resistance, and long service life. DETAILED DESCRIPTION - Producing high chromium alloy hammer heads involves adding 10-20 pts. wt. titanium dioxide, 20-30 pts. wt. chromium oxide, 10-15 pts. wt. boron oxide, 20-30 pts. wt. graphene oxide, 10- 15 pts. wt. aluminum powder, 40 to 50 pts. wt. sodium carboxymethyl cellulose, 80-100 pts. wt. water, after kneading under an inert gas protection state. The temperature is raised to above 1200 degrees C, and after the heat preservation reaction, grinding is performed to obtain an aluminum titanium chromium boron compound. The 80 to 150 pts. wt. ferrochrome powder, 30 to 40 pts. wt. aluminum titanium chromium boron compound, 10 to 15 pts. wt. PVDF, 100 to 150 pts. wt. solvent, 1 to 3 pts. wt. emulsifier, 0.1-0.3 pts. wt. defoamer are added and mixed by ball milling to obtain alloy coatin. The polystyrene foam is used as the base material to cut the mold, and then applied alloy coating on the surface of the mold, heated and dried, and then painted the second layer, and repeated the painting and drying process 4-5 times, the thickness of single painting is 1.5-2.5mm. The alloy coating is painted, applied refractory coating after the painting is completed, heat-dried and dried, and repeated the painting 3 times. The vanishing mold is moved after applying the refractory coating to the sand box, used sand spraying to fill the sand, and then shake and compact the molding sand with a shaker, then poured the molten steel into the pouring cup for casting, where casting temperature is 1500 degrees C, pressure is 0.04 mega pascal. The casting is completed, quickly cooled to 1050-1100 degrees C, and kept in water for 3-5 hours, then quenched in water to obtain high chromium alloy hammer head.