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单词 semi-steel
释义

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semi-steel
semi-steel n.
Brit. /ˈsɛmɪstiːl/
,
U.S. /ˈsɛˌmaɪˌstil/
,
/ˈsɛmiˌstil/
a low-carbon cast iron produced by melting mild steel with pig iron in a furnace.
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society > occupation and work > materials > derived or manufactured material > metal > iron > [noun] > type of iron > cast iron > other types of cast iron
grey iron1665
white iron1665
run metal1741
white cast iron1792
mottled iron1836
tender-floss1839
pot metal1854
semi-steel1858
silicon iron1878
white-heart1911
white-heart1928
1858 Q. Jrnl. Chem. Soc. 10 145 Mr. Bessemer claims the production..of a particular product called semi-steel.
1861 W. Fairbairn Iron 141 What he [Bessemer] calls semi-steel.
1929 Iron & Steel Industry 3 35 The metallurgist has long regarded the term ‘semi-steel’ as a misnomer, although the use of the term within the foundry business is harmless when it is simply made to imply the use of steel in a cast iron mixture... Instead, we have at present the innuendo that ‘semi-steel’ is more or less a definite iron-carbon alloy of superior properties compared to cast iron, whereas it is in reality an ‘unknown quantity’.
1958 Engineering 21 Mar. 384/2 The bottom grate is of heat resistant 30 per cent chrome semi-steel and is reversible for burning coal or coke.
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