섬유

black chrome solar selective coating

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 348
electrodeposited black chrome solar selective coatings have frequently experienced thermal stability problems when heated to temperatures above 250 exp 0 c (480 exp 0 f) in air. by reducing the trivalent chromium concentration in the standard black chrome plating bath, coatings on nickel substrates are obtained which are stable for thousands of hours at 350 exp 0 c (660 exp 0 f) and for hundreds of hours at 400 exp 0 c (750 exp 0 f). these results have been obtained consistently on a laboratory scale, but difficulty in reproducing the results has been encountered in a production environment. a current study of the effects of known plating variables on the optical properties and thermal stability of coatings is aimed at establishing an acceptable range for each plating parameter. a preliminary process specification for electroplating mild steel substrates with a stable black chrome coating is presented. (era citation 05:034747)
이전글 다음글 목록