揮發冶金學 的英文怎麼說
中文拼音 [huīfāyějīnxué]
揮發冶金學
英文
vapometallurgy- 揮 : 動詞1 （揮舞） wave; wield 2 （用手把眼淚、汗珠兒等抹掉） wipe off 3 （指揮軍隊） command （an ar...
- 發 : 名詞（頭發） hair
- 冶 : Ⅰ動詞（熔煉） smelt （metal）Ⅱ形容詞[書面語] （女子裝飾艷麗，含貶義） seductively dressed or made up Ⅲ名詞（姓氏） a surname
- 金 : Ⅰ名詞1 （金屬） metals 2 （錢） money 3 （古時金屬制的打擊樂器） ancient metal percussion instrum...
- 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
- 揮發 : volatilize揮發物 volatile matter; 揮發油 volatile oil; attar; benzin（e）; naphtha （粗的）; oleu...
- 冶金 : metallurgy冶金粉塵 metallurgical dust; 冶金工業 metallurgical industry; 冶金爐 metallurgical furnace; furnace
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Because of the former anchorage systems designed according to matching 1860mpa strength strands in the beginning of 90 ", they can not be suitable any more for the super strength strands with 2000mpa. therefore, some accidents occurred such as strands sliding and broken when tensioning. in addition, the advantages of the new materials as their high mechanics performance are not be used completely as the prestressing structures was designed as per the 1860mpa strands, which will result in the waste of materials, in view of the above - mentioned facts, by means of analyzing the development of anchorage systems home and abroad, in connection with the characteristics of the super strength strands ( 2000mpa ), this topic made a research on hvm15 anchorages by theoretical calculation and finite element analysis, and also on the manufacturing process and test
隨著預應力技術的發展和冶金工業冶煉技術的不斷進步，預應力鋼絞線的強度不斷提高，由原來1470mpa提高到1860mpa ， 90年代末期已出現了2000mpa超高強鋼絞線，而原來的是在90年代初期按抗拉強度為1860mpa的鋼絞線標準設計的，因此，原有的錨具已不能適應現有超高強度2000mpa的鋼絞線強度要求，在工程中出現了斷絲滑移現象，同時，在使用和設計時仍按1860mpa鋼絞線的指標進行設計應用，沒能充分發揮材料的力學性能，造成材料浪費。
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