| abstract |
A high erosion resisting-airtight packing material comprising a blend of refractory powder and fiber, low melting point metal and binder. A high erosion resisting-airtight packing material comprising a blend of refractory powder and fiber, low melting point metal, thermally expandable component and binder. The refractory powder is metal oxide, metal carbide or metal nitride. The low melting point metal is Al, Mg, Cu or Zn. The binder is sodium hexametaphosphate, sodium tripolyphosphate or sodium pyrrolinephosphate. |