| 释义 |
ˈsand-cast, v. Founding.
[f. sand n.2 + cast v.]
trans. To make (a casting) by pouring molten metal into a sand mould.
1949C. J. Smithells Metals Ref. Bk. 596 Nearly all alloys can be sand cast, including relatively hot short materials. 1952Wood & von Ludwig Investment Castings for Engineers xvii. 371 The preference for location of bosses in parts which are to be sand cast is on internal surfaces rather than external ones.
So ˈsand-cast ppl. a.; ˈsand casting vbl. n., (a) an object cast in a sand mould; (b) the process of casting in a sand mould.
1934Jrnl. Inst. Metals LIV. 103 A sand-cast ingot. 1939Light Metals II. 361 (heading) The production of aluminium-alloy sand castings. 1949C. J. Smithells Metals Ref. Bk. 596 Sand casting offers the widest scope of all the casting processes. Ibid., In weight, sand castings range from less than an ounce up to more than 100 tons. 1960,1964[see gravity die-casting s.v. gravity 8 b]. 1967A. H. Cottrell Introd. Metall. xiii. 184 In sand casting a wooden pattern of the required shape, slightly enlarged to allow for shrinkage of the casting, is firmly packed in sand in a moulding box... A green sand casting is made in sand bonded with clay. 1981Pop. Hot Rodding Feb. 22/1 The only engine components that should be changed are the pistons, and only if they are of sand-cast manufacture. |