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单词 thomas–gilchrist
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Thomas–Gilchrist
5. The name of S. G. Thomas (1850–85), English metallurgist and inventor, used attributively to designate a steel-making process like the Bessemer process but using a converter with a basic instead of an acid lining, so that phosphorus is removed (invented by Thomas in 1878). Also Thomas–Gilchrist [P. Gilchrist (1851–1935), cousin and collaborator of Thomas] .
ΚΠ
1881 Encycl. Brit. XIII. 346/1 Owing to the success of these operations, the ‘basic’ process has been more frequently spoken of as the ‘Thomas-Gilchrist process’.
1925 Jrnl. Iron & Steel Inst. 112 523 Notwithstanding prognostications as to the supersession..of the Bessemer acid and basic (Thomas) process by the open-hearth process, it is certain that..the Bessemer process will long continue to hold its own.
1948 H. W. Baker Mod. Workshop Technol. i. 22 In the Thomas process the necessary amount of lime..is charged into the converter..before the iron..is poured in.
1973 R. D. Pehlke Unit Processes Extractive Metall. iv. 88 The Siemens-Martin process, commonly referred to as the open hearth process, was developed at about the same time as the Thomas process.
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更新时间:2025/2/24 12:01:04