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单词 jolt ramming
释义

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jolt ramming
jolt ramming n. Founding 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; frequently attributive.
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society > occupation and work > industry > working with specific materials > working with metal > [noun] > founding or casting > specific processes involved in
rapping1851
false coring1866
sweeping1902
jar ramming1909
jolt ramming1909
jolt-squeeze1931
shell-moulding1951
1909 Iron Age LXXXIV. 1165/1 Today we have pneumatic jolt-ramming machines in successful service with lifting capacities from 10 to 15 tons.
1909 Iron Age LXXXIV. 1165/2 How to adapt our foundry methods to this new principle of jolt-ramming green sand molds.
1926 Jrnl. Iron & Steel Inst. 113 568 The whole of the mould and core are rammed on a Mumford jolt ramming machine.
1950 J. S. Campbell Casting & Forming Processes xii. 104 Jolt ramming packs the lower portions of the sand next to the pattern best.
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更新时间:2024/12/24 0:00:21