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日前,江钨集团所属赣州华茂钨材料有限公司自主研制的超粗晶硬质合金原料碳化钨粉被用户成功应用于备制硬质合金,经过权威检测机构检测,合金晶粒度达到10微米以上,达到国内领先、江西省内首创的水平。据了解,超粗晶粒硬质合金是一种新型合金,具有极高的热导率、较高的断裂韧性与红硬性、较好的抗热疲劳与抗热冲击等优异性能。目前国内先进水平的硬质合金晶粒度为8微米左右,国外先进水平为10微米左右。
Recently, the tungsten carbide powder produced by Ganzhou Huamao Tungsten Materials Co., Ltd., a subsidiary of Jiangxi Tungsten Group Co., Ltd., has been successfully applied in the preparation of cemented carbide by users. The grain size of the alloy reaches 10 microns Above, reached the leading domestic, Jiangxi Province, the first level. It is understood that ultra-coarse grain cemented carbide is a new type of alloy with excellent thermal conductivity, high fracture toughness and red hardness, good thermal fatigue resistance and thermal shock resistance and other excellent performance. The current domestic advanced level of carbide grain size of about 8 microns, advanced level of about 10 microns.