Tag Archives: carbide

Method for producing silicon carbide

Application Number  00129197 Application Date  2000.10.11 Publication Number  1290652 Publication Date  2001.04.11 Priority Information     International Classification  C01B31/36   Applicant(s) Name  Su Zhanzhong   Address     Inventor(s) Name  Su Zhanzhong   Patent Agency Code  64100 Patent Agent  wang jishu AbstractThe production of silicon carbide uses the production process and equipment basically same as… Read More »

Silicon carbide producing process

Application Number  00128913 Application Date  2000.09.14 Publication Number  1287097 Publication Date  2001.03.14 Priority Information     International Classification  C01B31/36   Applicant(s) Name  Jia Yudong   Address     Inventor(s) Name  Jia Yudong   Patent Agency Code  64100 Patent Agent  luo yongqian AbstractThe present invention relates to metallurgical chemical engineering and is especially one silicon carbide… Read More »

Metal carbide coating to prevent hot corrosion of boiler overheater in power station

Application Number: 00113819Application Date: 2000.05.22Publication Number: 1274767Publication Date: 2000.11.29Priority Information: International: C23C4/10;F16L58/04Applicant(s) Name: Xi'an Jiaotong Univ.Address: Inventor(s) Name: Han Zhihai;Chen Hua;Chen LiliPatent Agency Code: 61200Patent Agent: jia yujianAbstract The metal-carbide coating includes a Ni-Cr-Al alloy base layer adhered to metal substrate, a mixed NiCr-Cr3C2 and NiCrAl face layer covering the base layer, and a surface… Read More »

Equipment for producing triferric carbide

Application Number: 00118319Application Date: 1996.05.27Publication Number: 1285313Publication Date: 2001.02.28Priority Information: 1995/5/31 JP 158511/95; 1996/2/19 JP 30985/96International: C01B31/30;C21B15/00Applicant(s) Name: Kawasaki Jokogyo K.K.Address: Inventor(s) Name: Miyashita Torakatsu;uchiyama Yoshio;Inone EijiPatent Agency Code: 11105Patent Agent: zhang bengyuanAbstract Disclosed is a device for producing triferric carbide, including: first reaction unit, which connects to first cyclic loop of first reactive gas… Read More »

Process for preparing silicon carbide crystal whisker from river sand

Application Number: 00120789Application Date: 2000.07.14Publication Number: 1276340Publication Date: 2000.12.13Priority Information: International: C01B31/36;C30B29/36;C30B29/62Applicant(s) Name: Qinghua Univ.Address: Inventor(s) Name: Pan Wei;Huang Yue;Chen JianPatent Agency Code: 11201Patent Agent: luo wenqunAbstract A process for preparing silicon carbide crystal whisker with length/diameter ratio of 20 : 1 using river sand as raw material includes such steps as pickling with diluted… Read More »

Energy-saving low-pollution process for preparing raw material of calcium carbide furnace

Application Number: 00122023Application Date: 2000.07.21Publication Number: 1283586Publication Date: 2001.02.14Priority Information: 1999/11/8 CN 99124428.1International: C01B31/32Applicant(s) Name: Xu ShanliangAddress: Inventor(s) Name: Xu ShanliangPatent Agency Code: 00000Patent Agent: Abstract A process for preparing the raw material of calcium carbide generator uses calcium lime and carbon as its raw materials and includes pulverizing, adding water, pressing or rolling for… Read More »

Process for preparing silicon carbide with by-product of graphite blocks

Application Number: 00122108Application Date: 2000.07.17Publication Number: 1334236Publication Date: 2002.02.06Priority Information: International: C01B31/04;C01B31/36Applicant(s) Name: Yin ZhongfuAddress: Inventor(s) Name: Yin ZhongfuPatent Agency Code: 21212Patent Agent: li hongfuAbstract A process for preparing silicon carbide as primary product and graphite blocks as by-product features that the core material of furnace is the charcoal blocks generated by calcining waste and… Read More »

Copper-tungsten carbide contact material

Application Number: 00126115Application Date: 2000.08.21Publication Number: 1338527Publication Date: 2002.03.06Priority Information: International: C22C1/10;C22C9/00;H01H1/02Applicant(s) Name: Fuda Electrical Alloy Maerials Co Ltd, Leqing CityAddress: Inventor(s) Name: Hu Xingfu;Zhang QiminPatent Agency Code: 33100Patent Agent: hu gongjuanAbstract A non-silve copper-base contact material for low-voltage leakage switch contains tungsten cupride (8-10 wt.%), graphite (0.8-2) and copper (rest). It has the improved… Read More »

Preparation of composite hard alloy powder of tungsten carbide and titanium cobalt carbide

Application Number: 00110137Application Date: 2000.02.23Publication Number: 1310244Publication Date: 2001.08.29Priority Information: International: C22C1/05;C22C29/08Applicant(s) Name: Inst. of Metals Research, Academia SinicaAddress: Inventor(s) Name: Yang Mingchuan;Zhao Tiemin;Xu MinPatent Agency Code: 21002Patent Agent: zhang chenAbstract The composite hard alloy powder contains WC 55-75 wt%, and TiC 15-35 wt% other than Co. The preparation features that soluble salts of W,… Read More »

Device for producing high temperature silicon carbide semiconductor material

Application Number: 00109107Application Date: 2000.06.07Publication Number: 1327092Publication Date: 2001.12.19Priority Information: International: C30B25/02;C30B29/36Applicant(s) Name: Semiconductor Inst., Chinese Academy of SciencesAddress: Inventor(s) Name: Li Jinmin;Sun Guosheng;Zhu ShirongPatent Agency Code: 11021Patent Agent: tang baobengAbstract The high temperature silicon carbide semiconductor material producing equipment includes one front stage sample introducing chamber, one sample transferring unit, one sample growth unit,… Read More »

Preparation process of superfine carbide powder by direct reduction carbonization in pipe furnace

Application Number: 00107259Application Date: 2000.04.30Publication Number: 1321558Publication Date: 2001.11.14Priority Information: International: B22F9/20;C22C1/04;C22C29/08Applicant(s) Name: Beijing Univ. of Science & TechnologyAddress: Inventor(s) Name: Zhang Liying;Wu Chengyi;Yan HongboPatent Agency Code: 11207Patent Agent: liu rueAbstract A technological process for preparing WC or composite alloy powder for making nanometer-grade superfine granule hard alloy by means of direct reduction and carbonation… Read More »

Process for preparing Sailong and silicon carbide combined ceramic powder from river sand

Application Number: 00105941Application Date: 2000.04.21Publication Number: 1270153Publication Date: 2000.10.18Priority Information: International: C04B35/565;C04B35/569Applicant(s) Name: Qinghua Univ.Address: Inventor(s) Name: Pan Wei;Huang Yue;Chen JianPatent Agency Code: 11201Patent Agent: luo wenqunAbstract A process for preparing Sailong and silicon carbide combined ceramic powder from river sand includes such steps as selecting raw material, dewatering, mixing with carbon powder, ball grinding… Read More »

Preparation of silicon carbide grain-filling cast composite nylon material

Application Number: 00103503Application Date: 2000.03.24Publication Number: 1265402Publication Date: 2000.09.06Priority Information: International: C08G69/16;C08K3/34Applicant(s) Name: Qinghua Univ.Address: Inventor(s) Name: Li Guolu;Wang Kunlin;ZLiu JiajunPatent Agency Code: 11201Patent Agent: luo wenqunAbstract Silicon carbide grain is first pre-treated by adding coupling agent and then mixed homogeneously with caprolactam monomer. The mixture is heated to smelt, dewatered, mixed with catalyst, etc.… Read More »