2013年8月8日星期四

unbonded superfine pure tungsten carbide phase sintering method

59 CN200310107222.5 tungsten carbide inserts carbide spray powder formulations
60 CN200510007252.8 A copper - tungsten carbide - carbon - titanium - rare earth alloy material and method
61 CN200410067120.X one kind of tungsten carbide catalyst and its preparation method and special carbonization furnace
62 CN200510005173.3 methanol cracking methods Nano tungsten carbide powder
63 CN200510005174.8 acetylene carbide method of preparing nano tungsten carbide powder
64 CN200510024287.2 a silvery - tungsten carbide - carbon electrical contact materials, manufacturing methods
65 CN200510013225.1 liquid shot peening to improve the performance of tungsten carbide based cemented carbide method
66 CN200510100909.5 Carbon nano tungsten carbide enhanced oxygen-reduction catalyst and preparation method
67 CN200510020875.9 based spherical tungsten carbide thermal spray powder production methods
68 CN200410060116.0 RE - Ni - Mo - P - tungsten carbide alloy plating solution
69 CN200410045065.4 preparation of fine tungsten carbide powder
70 CN200510050832.5 one kind of catalytic electrode tungsten carbide
71 CN200510043188.9 A process for preparing tungsten carbide particle reinforced steel with a complexing agent Matrix Composites
72 CN200510021676.X using jet milling, grading method for the production of tungsten carbide powder
73 CN200510086630.6 a non-steady-state yttrium zirconia toughened composites reinforced tungsten carbide method
74 CN200410087691.X one kind of tungsten carbide - cobalt / molybdenum disulfide composite powder and its preparation method
75 CN200510019718.6 carbon nanotubes - Nano-tungsten carbide composite powder method
76 CN200480012731.2 treatment of tungsten carbide particles
77 CN200410082959.0 cryogenic preparation tungsten carbide solid carbon - cobalt nanocomposite powder method
78 CN200510137074.0 particle method for producing tungsten carbide powder and powder
79 CN200610033110.3 one kind of tungsten carbide based cemented carbide powder metallurgy material and method
80 CN200610018177.X WC - inhibitor complex carbide powder and its preparation method of ultrafine
81 CN200610011620.0 A microwave method of synthesizing nano tungsten carbide powder
82 CN200610011690.6 SHS method of nano tungsten carbide powder
83 CN200610011835.2 a nano tungsten carbide powder preparation method
84 CN200610031676.2 graphite boat and use the boat to WO <sub> 3 </ sub> + C + H <sub> 2 </ sub> Direct production of tungsten carbide method
85 CN200610040510.7 high welding resistance silver tungsten carbide based electrical contact materials and processing technology
86 CN200610016994.1 one kind of tungsten carbide sintered body of aluminum
87 CN200510083842.9 A method of assembling mesoporous tungsten carbide catalyst and its preparation method
88 CN200610032101.2 tungsten carbide or tungsten carbide - cobalt metal powder ultrafine particles prepared by direct reduction method carbonization

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