| 单词 | mill scale |
| 释义 | > as lemmasmill scale mill scale n. Metallurgy a coating of iron oxide formed on iron or steel during hot working. ΘΚΠ society > occupation and work > materials > derived or manufactured material > materials produced from metalworking > [noun] > film of oxide scale1526 mill scale1880 forge-scale1883 1880 Encycl. Brit. XIII. 357/1 During rolling this film [of oxide] becomes somewhat thick and peels off, forming ‘mill-scale’. 1940 E. N. Simons & E. Gregory Steel Manuf. xvi. 109 The charge consists of steel scrap and grey phosphoric..to which are added millscale..or iron ore, and lime or limestone. 1984 E. P. DeGarmo et al. Materials & Processes in Manuf. (ed. 6) xiv. 346 The surfaces of hot-rolled products are, of course, slightly rough and covered with a tenacious high-temperature oxide known as mill scale. < as lemmas |
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