英语词汇“knobbling furnace”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

2. U.S. Metallurgy. The process of producing wrought iron from pig iron or (sometimes) steel, typically by means of smelting in a charcoal-fired furnace and hammering the hot metal to remove any remaining impurities. Chiefly attributive, as knobbling fire, knobbling furnace. Now historical and rare.Recorded earliest in knobbling fire.

ΚΠ

1852 Student 5 173/2 This process of rendering the metal malleable is called ‘nobbling’, where charcoal is used, and the men or hands employed in it are called ‘nobblers’.

1868 U.S. Patent 74,314 1 The tin may be alloyed with the pig-metal at any time when it is in a molten state, but the inventor believes the best method is to introduce the tin into the molten iron in a bloomery or knobbling fire.

1916 Trans. Internat. Engin. Congr. 1915 69 The steel was usually produced in the knobbling fire, by stopping the process of knobbling before the metal in the fire had reached a state of wrought iron.

1917 Bull. U.S. Bureau Labor Statistics Oct. 485 Knobbler.—makes iron by treatment of steel scrap in a knobbling furnace.

1992 Technol. & Culture 33 770 (footnote) A ‘finery’ or ‘knobbling fire’ was for the last step and was always charcoal fired.

单词	knobbling furnace
释义	> as lemmas knobbling furnace 2. U.S. Metallurgy. The process of producing wrought iron from pig iron or (sometimes) steel, typically by means of smelting in a charcoal-fired furnace and hammering the hot metal to remove any remaining impurities. Chiefly attributive, as knobbling fire, knobbling furnace. Now historical and rare.Recorded earliest in knobbling fire. ΚΠ 1852 Student 5 173/2 This process of rendering the metal malleable is called ‘nobbling’, where charcoal is used, and the men or hands employed in it are called ‘nobblers’. 1868 U.S. Patent 74,314 1 The tin may be alloyed with the pig-metal at any time when it is in a molten state, but the inventor believes the best method is to introduce the tin into the molten iron in a bloomery or knobbling fire. 1916 Trans. Internat. Engin. Congr. 1915 69 The steel was usually produced in the knobbling fire, by stopping the process of knobbling before the metal in the fire had reached a state of wrought iron. 1917 Bull. U.S. Bureau Labor Statistics Oct. 485 Knobbler.—makes iron by treatment of steel scrap in a knobbling furnace. 1992 Technol. & Culture 33 770 (footnote) A ‘finery’ or ‘knobbling fire’ was for the last step and was always charcoal fired. extracted from knobblingn. < as lemmas
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> as lemmas