Pushing type dynamic continuous preparing method for My(CXN1-X) powder and sintering device

Pushing type dynamic continuous preparing method for My(CXN1-X) powder and sintering device

  • CN 104,986,749 A
  • Filed: 06/09/2015
  • Published: 10/21/2015
  • Est. Priority Date: 06/09/2015
  • Status: Active Application
First Claim
Patent Images

1. a M y(C xn 1-x) the dynamic continuous production method of driving of powder, described chemical formula M y(C xn 1-x) in, M is the one in Ti, Cr, V, Ta, Mo, Nb, Zr, Hf, W, Mn, y be 1 or 2, x be 0.1≤

  • x≤

    0.9, it is characterized in that processing step is as follows;

    (1) prepare burdenExcept M is Ti or Ta, preparation M y(C xn 1-x) raw material of powder is compound powder and the reductive agent of M and O, when M is Ti, preparation M y(C xn 1-x) raw material of powder is compound powder and the reductive agent of metal Ti powder or Ti and O, when M is Ta, preparation M y(C xn 1-x) raw material of powder is compound powder and the reductive agent of metal Ta powder or Ta and O, according to M y(C xn 1-x) powder chemical formula and raw materials used between chemical reaction, calculate preparation M y(C xn 1-x) powder raw material proportioning and measure each raw material;

    (2) batch mixing is with dryThe raw material that step (1) measures is put into ball mill, add grinding spheroid and wet grinding media carry out wet-milling, raw material is mixed, the add-on of wet grinding media is limited with raw material described in submergence and grinding spheroid, then sieving separating goes out to grind spheroid and obtains mixed slurry, is carried out by the mixed slurry of gained dryly must preparing M y(C xn 1-x) mixed powder of powder;

    (3) sinterThe preheating chamber of agglomerating plant, reaction chamber and cooling room are the open system communicated with air, first the inlet mouth of cooling room is passed through to cooling room with the gas flow rate of 0.1 ~ 8L/min, nitrogenous gas is filled with in reaction chamber and preheating chamber, then by the heating temperatures in preheating chamber to preheating temperature, by the heating temperatures in reaction chamber to temperature of reaction, make cooling room in running order, continue after the reaction boat separated in time being mounted with mixed powder is put into feed chamber successively, and intermittently the reaction boat being mounted with mixed powder is at the uniform velocity advanced to discharge port direction, make the mixed powder in reaction boat dry further and improve temperature in by the process of preheating chamber, reaction forming reactions product is completed after by reaction chamber, make the reaction product in reaction boat cooled in the process through cooling room, namely M is obtained y(C xn 1-x) powder, described preheating temperature is 300 ~ 700 DEG C, and temperature of reaction is 1100 ~ 2000 DEG C.

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