Inquiry (采购产品): alumina grit #3 We are using a S.S. White Abrasive Unit H with #3 grit alumina. We are grit blasting stainless steel one inch away using a small rectangular nozzle and an air pressure of 60 to 90 psig. I have noticed that some of the alumina particles less than 10 microns are firmly imbedded in the rough stainless steel surface. My question to you is: Are the 10 micron particles from the original batch of #3 alumina or does the alumina break into smaller pieces upon impinging on the stainless steel? My basic question is to get your best estimate on whether a 30 to 50 micron alumina particle breaks up after impinging on the steel assuming the parameters I have given you? Jim Sovey, Alphaport, Inc. at NASA Glenn, Cleveland, OH 44135 James.S.Sovey@nasa.gov **** Hidden Message ***** James Sovey 21000 Brookpark Road M.S. 16-1 Cleveland, OH 44135 USA Company: Alphaport, Inc. at NASA Glenn Phone: 2169777454 E-mail: james.s.sovey@nasa.gov **** Hidden Message ***** james.s.sovey@nasa.gov
