scab

Japanese: scab
scab

...the act of workers working in a factory or business that is on strike, or the actions of those workers, that diminish the effect of the strike. Also called scab (originally American), strikebreaker or blackleg is the more common term in the UK. Employers may force non-strikers or hired unemployed workers to work in order to continue production or business, or to break up the strike.

From [Casting]

...Measures are taken to improve the fire resistance of the sand and improve the mold coating. (6) Buckle, Scab The damage caused by the expansion of the mold sand due to pouring molten metal, which is pushed out onto the casting surface, is called "buckle," and the damage caused by the molten metal washing away the sand, leaving behind lumps of sand and metal, is called "scab." Sand with low thermal expansion is used, and combustible materials are added to harden the surface layer of the mold, making it less likely to be eroded. ...

*Some of the terminology that mentions "scab" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ストライキ中の工場や事業場であるにもかかわらず,そこで就労する労働者,またはその労働者の行為により,ストライキの効果の減殺をはかること。スキャッブscab(もと米語)ともいわれ,イギリスではstrikebreakerないしblacklegが一般的な言い方である。使用者は生産や営業の続行をもとめて,さらにはストライキの切りくずしを目的として,ストライキ非参加者や雇い入れた失業者を就労させることがある。…

【鋳造】より

…砂の耐火性の向上,塗型の改善などの処置をとる。(6)しぼられbuckle,すくわれscab 注湯による型砂の膨張で,その一部が鋳肌面に押し出されてできた傷を〈しぼられ〉といい,溶湯によって部分的に砂を流し去った所に砂や地金の塊が残るものを〈すくわれ〉という。熱膨張の少ない砂を使い,可燃物を添加して,鋳型の表面層を硬化させ,侵食されにくい方案を立てる。…

※「scab」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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