磨合了的鉆頭 的英文怎麼說

中文拼音 [mógělēdezhēntóu]
磨合了的鉆頭 英文
broken-in bit
  • 磨 : 磨動詞1 （摩擦） rub; wear 2 （研磨） grind; mull; polish 3 （折磨） grind down; wear down [out]:...
  • 合 : 合量詞（容量單位） ge, a unit of dry measure for grain （=1 decilitre）
  • 了 : 了助詞1. （用在動詞或形容詞后, 表示動作或變化已經完成） 2. （用在句子的末尾或句中停頓處, 表示變化, 表示出現新的情況, 表示催促或勸止）
  • 的 : 4次方是 The fourth power of 2 is direction
  • 鉆 : 鉆Ⅰ名詞1. （打眼用的工具） drill; auger 2. （指鉆石） diamond; jewel Ⅱ動詞（用尖物在另一物體上轉動） drill; bore
  • 磨合 : [機械工程] （走合） grinding in; running in磨合時間 running in time; seating time; 磨合試車 runni...
  1. The highlights of this paper include : hoop toughness criterion for longitudinal heat checking of tool joint was introduced firstly ; failure criterion for crescent - shaped wear casing was established according to the results of full - scale collapse tests ; new - typed alloy for hardbanding of tool joint was developed, its property has showed good performance in the tests

    本文的主要創新點在於：以現場失效案例分析為基礎，提出了鉆桿接頭縱向熱裂的橫向韌性判據；通過對已磨損套管的實物擠毀試驗研究，確定了不均勻磨損套管的擠毀失效準則；設計出了具有獨立知識產權的鉆桿接頭硬化帶用新型耐磨減摩合金的成分，經實驗室試驗表明其性能可以達到或超過國外同類產品。
  2. Based on the tribological principle and the theory of contact mechanics, it is feasible to adopt curvature - changing structure in the rock - bit journal bearing system. the structure and coupling relationship of curvature - changing journal bearing under the condition without friction have been analyzed and three kinds of sub - form structure configurations, namely, the pseudo - curvature - changing structure, the conformable curvature - changing structure, and the clearance curvature - changing structure, been differentiated according to the contacting features. the shape optimization and pre - running - in regulations of the contact surface of curvature - changing journal bearing under friction condition have been established. the results of rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre - running - in

    基於摩擦學原理和接觸力學理論，提出了可在牙輪鉆頭滑動軸承中採用變曲率結構.在不考慮摩擦的情況下，就結構設計和配合關系等問題進行了分析討論，劃分了準變曲率、吻合變曲率以及間隙變曲率等3種結構形式；針對考慮摩擦時的變曲率結構，提出了接觸形狀優化和預磨合的實施方案.鉆頭軸承試驗結果表明，無論是預設計變曲率還是預磨合變曲率，都能改善軸承摩擦副的摩擦學特性，因而值得進一步研究和推廣
  3. According to the researches on working principle of wear - resistant alloy, the ideas on selecting the new - typed wear - resistant alloy were put forward, which are " equilibrium wear design " and " stability " concept. three kinds of new wear - resistant alloy that can be used for hardbanding on tool joint were developed, and wear experiments have showed that its property is as good as or better than that of abroad

    對耐磨減摩合金的工作原理進行了研究，提出了新型耐磨減摩合金的篩選要以「平衡磨損設計」概念和「穩定性」原則為依據，並設計出3種鉆桿接頭硬化帶用新型耐磨減摩合金，實驗室磨損試驗表明其性能可以達到或超過國外同類產品。
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