Founding. The process of striking a mould with a tool, piece of wood, etc., in order to loosen the pattern (cf. rapping bar n. at compounds).
| 单词 | θ209386 |
| 释义 | society > occupation and work > industry > working with specific materials > working with metal > [noun] > founding or casting > specific processes involved in (7) rapping1851 Founding. The process of striking a mould with a tool, piece of wood, etc., in order to loosen the pattern (cf. rapping bar n. at compounds). false coring1866 The action of core, v.; concrete a piece cored out. false coring (in Founding): the use of false cores: see core, n.1 8. sweeping1902 The action of sweep, v. The formation of a mould with a sweep. jar ramming1909 = jolt ramming n. at jolt, n. compounds. jolt ramming1909 a method of packing the sand around a pattern in which the moulding box, pattern, and sand are repeatedly lifted by machine and allowed to fall… jolt-squeeze1931 simultaneous or successive jolting of a moulding box and ‘squeezing’ of the sand in it (i.e. application of pressure at the top), as a means of… shell-moulding1951 in Founding, a method of making moulds and cores in which a shell of resin-bonded sand is formed in parts around a heated metal pattern, the parts… |
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