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2025-08-14

“hard metal”的英英意思

单词 hard metal
释义 hard metal
1. Any of various alloys valued for their hardness.
1729,1845[see metal n. 5].1911Encycl. Brit. XXI. 339/1 Hard metal (96 parts of tin, 8 of antimony and 2 of copper), a mixture very closely resembling..‘Britannia metal’.
2. (See quot. 1967.)
1936Jrnl. Iron & Steel Inst. CXXXIV. 66A The author discusses the application of hard metal alloys and of diamond substitutes (such as tungsten carbide) to the hard-facing of tools.1960Ibid. CXCIV. 532/1 The final section is devoted to a consideration of materials used for cutting tools, namely unalloyed tool steels, alloyed tool steels,..hard metals, i.e. sintered tungsten carbide and the like.1967A. K. Osborne Encycl. Iron & Steel Industry (ed. 2) 195/1 Hard metals, powdered carbides of tungsten, tantalum, or titanium, cemented into solid masses by mixing with powdered cobalt or nickel, then cold pressing and sintering. Used for cutting tools, wire drawing dies, and parts subjected to heavy wear and abrasion.
“hard metal”的英英意思

 

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