V2EX countersink

Countersink

释义 Definition

countersink(动词/名词)指为使螺钉/螺栓头部与表面齐平或略低于表面,在孔口处加工出一个锥形凹座(沉头);也可指这种凹座本身。常见于木工、金工与装配中。(另有较少见含义:使某物“下沉/沉没”。)

例句 Examples

Please countersink the hole before inserting the screw.
请先把孔口沉头,再把螺钉拧进去。

To prevent the screw head from snagging on the fabric, the builder carefully countersank each pilot hole and checked that every fastener sat flush with the surface.
为避免螺钉头挂住布料,建造者仔细地把每个导向孔都做了沉头,并检查每个紧固件的头部都与表面齐平。

发音 Pronunciation (IPA)

/kan.tr.sk/

词源 Etymology

由 **counter-**(“相对的、反向的;抵消的”,此处可理解为“与孔的主轴相配的/配套的加工”)+ sink(“下沉、沉入”)构成,原意与“沉入/沉下去”相关,后在工艺语境中固定为“在孔口加工沉头,使螺钉头‘沉’进去”。

相关词 Related Words

文学与作品 Literary Works

  • Machinery’s Handbook(工程工具书中常见于孔加工与紧固件章节)
  • The Complete Manual of Woodworking(木工工艺书中常用于五金安装与孔加工说明)
  • Audel Machine Shop Basics(机加工入门类教材中常见该术语)
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