sand pile |
เสาเข็มทรายกระแทกอัดแน่นในดิน |
sandstone |
หินทราย |
sand trap |
บ่อหรือจุดดักทรายในท่อระบายน้ำ |
sandwich |
ประกบ |
standard sand |
ทรายมาตรฐาน |
uniform sand |
ทรายขนาดเดียว |
Abrasive 1 |
(english) Material for grinding, polishing, blasting, either in loose form or bonded to form wheels, bricks, or files, or applied to paper and cloth by glue or resin. Natural abrasives include emery, corundum, garnet, sand, flint, etc. Metallic shot and grit are also used as abrasives in cleaning castings |
Abrasive 2 |
(english) Natural – sandstone,emery,corundum,diamonds, or Artificial – silicon carbide,aluminum oxide – material used for making grinding wheels,andpaper,abrasive and lapping compunds. |
AFS Tests |
(english) A number of standard tests determined by American Foundrymen's Society to evaluate molding and core sands. |
Backing Sand |
(english) The bulk of the sand in the flask. The sand compacted on top of the facing sand that covers the pattern. |