公开(公告)号：US3814620A

公开(公告)日：1974-06-04

申请号：US19019071

申请日：1971-10-18

申请人： GEN ELECTRIC

发明人： BAILEY C ,  BALCHUNAS W ,  ZLUPKO J

IPC分类号： C04B41/87 ,  H01H33/08 ,  H01H33/72 ,  B05B7/22

CPC分类号： H01H33/08 ,  C04B41/87 ,  H01H33/72

摘要： DISCLOSED A METHOD OF APPLYING AN AMORPHOUS FUSED SILICA COATING TO A SUBSTRATE OF REFRACTORY NON-METALLIC MATERIAL. HIGH TEMPERATURE ARC PLASMA FROM AN ARC PLSMA SPRAY GUN IS PROJECTED ONTO THE SUBSTRATE SURFACE; AND PARTICLES OF A MATERIAL CONSISTING ESSENTIALLY OF CRYSTALLINE SILICA ARE FED INTO THE PLASMA, WHERE THEY ARE MELTED AND ENTRAINED IN THE PLASMA. THE GUN IS HELD CLOSE ENOUGH TO THE SUBSTRATE TO EFFECT MELTING OF THE SURFACE OF THE SUBSTRATE, OR THE PREVIOUSLY-APPLIED MATERIAL, IN THE REGION WHERE THE MOLTEN DROPS OF SILICA ENTRAINED IN THE PLASMA ARE IMPINGING AGAINST SAID SURFACE.

D R A W I N G