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单词 sink head
释义

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sink head
sink head n. now rare a reservoir attached to or forming the top of a channel in a mould, used to continuously supply molten metal to a casting as it cools and contracts.
ΚΠ
1865 J. L. Lowry U.S. Patent 47,740 1/2 Sometimes the sink-head is two or three inches lower on the outside of the casting.
1915 Foundry 22 Nov. 147/1 It is quite common to stop pouring through the gate when the metal reaches the sink-heads, and pour the latter from the top.
2006 J. M. Walker in R. Crowson Handbk. Manuf. Engin. (ed. 2) III. 35 Hence a casting or an ingot is given a sink head large enough to supply the extra metal needed in the desired shape when frozen.
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更新时间:2025/3/21 13:54:19