用金属钨粉和炭黑为原料,按一定比例配成混合料,将混合料装入石墨舟皿中,置于炭管炉内或高中频感电炉中,在一定温度下进行炭化,再经球磨、筛分即得碳化钨粉。
等级 | WC (%,Min.) | C % | 杂质(%,Max. ) | |||||||||
Total c (%) | Free c(%) | Al | As | Bi | Ca | Mg | Cd | Cr | Cu | Fe | ||
FWC-1 | 99.8 | 6.08~6.18 | 0.08 | 0.001 | 0.001 | 0.0002 | 0.0045 | 0.001 | 0.0002 | 0.006 | 0.0008 | 0.03 |
FWC-2 | 99.7 | 6.08~6.18 | 0.08 | 0.001 | 0.0015 | 0.0003 | 0.005 | 0.0015 | 0.0003 | 0.007 | 0.001 | 0.05 |
K | Na | Mn | Mo | Ni | P | Pb | S | Sb | Si | Sn | V | - |
0.0015 | 0.001 | 0.001 | 0.004 | 0.006 | 0.001 | 0.0002 | 0.001 | 0.0005 | 0.0035 | 0.0002 | 0.0008 | - |
0.002 | 0.0015 | 0.0015 | 0.01 | 0.007 | 0.0015 | 0.0003 | 0.0015 | .0.0005 | 0.005 | 0.0003 | 0.001 | - |