公开(公告)号：DE3565944D1

公开(公告)日：1988-12-08

申请号：DE3565944

申请日：1985-11-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PACKER LOUIS LEONARD ,  BOSSHART GEORGE S ,  KUNTZ URBAN E ,  JAWOROWSKI MARK R

IPC: B05B7/16 ,  B05B7/14 ,  B05B7/20 ,  B05B7/22 ,  B05B7/26 ,  C23C4/00 ,  G05D7/06

Abstract: Apparatus for delivering two or more powders at any controlled ration to a thermal spray apparatus permits the controlled production of graded sprayed coatings. The apparatus also monitors and controls the position of the spray apparatus relative to the workpiece and varies this position during the deposition of the sprayed layers. The apparatus includes in-pocess mass flow gauges which measure in real time the flow rates of the various powders and report these rates to a supervisory co troller which verifies these rates against the predetermined schedule and can shut down the apparatus in the event of a malfunction. The substrate being sprayed has its substrate temperature monitored and controlled according to a predetermined schedule by a supervising controller.

公开(公告)号：DE3569412D1

公开(公告)日：1989-05-18

申请号：DE3569412

申请日：1985-11-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PACKER LOUIS LEONARD ,  KUNTZ URBAN E

IPC: G01F1/74 ,  H05H1/42

Abstract: Accurate measurements are made of powder entrained in a flowing gas stream. Measurements are made of the flowing gas stream prior to powder entrainment and x-ray measurement techniques are made to determine characteristics of the combined materials. An equation is disclosed for calculating the mass flow rate of the powder material from these measurements.