突拉試驗機 的英文怎麼說
中文拼音 [tūlāshìyànjī]
突拉試驗機
英文
tensile tester-
Carry on a large amount of experiment and analysings, the result of calculation of designing has been verified, the error of designing and computing has been revised, the physical dimension of the rivet has been confirmed finally. combine the real working condition of the factory the difficulties that the rivet stem and the locking collar are difficult to process are solved, a series of feasible technology schemes are made finally. according to the designing and of the test of the blind rivet, consult the relevant standards of u. s. a., the relevant aviation industrial standards which lay the foundation for the popularizaion and application of the rivet are compiled
本文通過系統分析及計算，突破了鉚釘抽鉚成形、剪斷環及時被剪斷、芯桿到位及時拉斷等一系列技術難點，確定了設計方案，運用有限元方法對機械鎖緊鼓包型抽芯鉚釘進行了強度分析：制定了試驗方案，驗證了設計計算結果，修正了設計計算所造成的誤差，確定了鉚釘的結構尺寸；結合工廠的實際生產條件，解決了釘桿和鎖圈難以加工的困難，制定出?系列可行的工藝方案：根據設計及試驗結果，參照美國的相關標準，編制了系列航空工業標準，為機械鎖緊鼓包型抽芯鉚釘的推廣應用打下了基礎。Cnx coating provided a comparable to or better surface than dlc for the normal cellular attachment, growth and morp hology. compared with dlc, cnx coating also exhibited higher hardness, lower coefficient of friction, lower roughness, and lower corrosion, which obviously contributed to more sp3c structure and indicated a longer wear and corrosion life for cnx coating
本試驗中所制備的碳氮薄膜和類金剛石薄膜都具有很好的光潔度，但cn膜表面的針狀突起少於dlc膜表面，整體更加勻實光滑，三種薄膜的硬度和拉伸強度都很高，顯示出良好的機械性能和很低的摩擦系數。The paper tries to disclose the intrinsic mechanism of the catching - up, explore how the advantages of backwardness works in different economic growth stage, why for most situation, the gap between the poor and the rich become larger and larger, for some minority, they can suddenly rise up and step into the group of the developed countries, and find the best developing way for the backward countries
本論文的研究目的就在於試圖深入到紛繁的表象背後，揭示出后發國家后來居上的基礎和內在機理，探索不同歷史時期后發優勢的運行規律。為什麼當今多數后發國家與先發國家間的貧富差距越拉越大，而少數后發國家卻能夠異軍突起，快速步入先發國家行列?這些少數國家的經驗究竟如何去認識和總結
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