Hard alloy material for acrylic processing and preparation method thereof

The invention discloses a hard alloy material for acrylic processing and a preparation method thereof, and relates to the field of hard alloy materials.The preparation method comprises the steps that WC powder is added into an aqueous solution of cobalt acetate, then a mixture of ammonia gas and nitrogen gas is introduced into the aqueous solution, and the gas introduction rate is 1-3 m < 3 >/L; and finally, reduction is conducted in the reducing atmosphere, and WC-Co composite powder is prepared. And then adding the nanoscale WC-Co composite powder into a forming agent, and sequentially carrying out blank making and sintering. By preparing the WC-Co composite powder, the problems that in a traditional mode, WC and cobalt powder are directly adopted, mixing is not uniform, and the dispersing performance is poor are solved. 本发明公开了一种亚克力加工用的硬质合金材料及其制备方法，涉及硬质合金材料领域，将WC粉末加入醋酸钴的水溶液中，然后往水溶液中通入氨气和氮气的混合物，气体通入速率为1-3m3/L；最后在还原气氛中还原，制备出WC-Co复合粉末；然后将纳米级WC-Co复合粉末加入成型剂依序进行制坯、烧结而得。本发明通过制备WC-Co复合粉末解决了传统方式因直接采用WC和钴粉混合不均匀、分散性能不