| 释义 |
ˈshot-blast
[shot n.1]
A high-speed stream of steel particles directed at a surface to clean and roughen it.
1923Foundry 1 Feb. 13 Have you noticed how the modern shot-blast and grit-blast are replacing the old dust breeding sand-blast? 1934Foundry Trade Jrnl. LI. 340 The barrel..is essentially a contrivance for mechanically exposing every part of the casting or forging to be cleaned to the effect of the shot-blast. 1958Engineering 21 Mar. 382/3 An airless type shot-blast plant has been installed, to deal with 35 tons of castings a day.
Hence shot-blasting, the use of a shot-blast; also shot-blast v. trans., to subject to shot-blasting; shot-blasted ppl. a.; shot-blaster, a person using a shot-blast.
1934F. W. Partington G. F. Charnock's Mech. Technol. (ed. 2) xxxi. 415 Steel castings are frequently cleaned of both sand and scale by subjecting them to shot-blasting. 1937Jrnl. Iron & Steel Inst. CXXXV. 160a (heading) Buick shotblasts large castings automatically. 1941W. K. Wilson Pract. Solution Torsional Vibration Problems (ed. 2) II. vii. 146 Shot-blasted springs are very susceptible to rusting. 1946Engineer 15 Feb. 152/1 A large-capacity dust extractor, coupled to the shot-blasting chamber, exhausts all the fine dust and sand. 1959Times 27 Apr. (Suppl.) p. xi/4 It has first to be shot-blasted to provide an absolutely clean surface. 1961Evening Standard 26 July 18/5 (Advt.), Shot blasters & metal sprayers..reqd. 1964S. Crawford Basic Engin. Processes iii. 87 Prior to bronze welding the joint faces or edges are cleaned by shot blasting. 1975Offshore Engineer Sept. 143/4 A new version of their shot⁓blaster's helmet has been introduced by Martindale Protection. 1977Exchange & Mart (South) 24 Feb. 19 M/3 One bodiless chassis, stripped, shotblasted, etc. partly reassembled. |