1) necking die
缩径模
1.
The difficulty in designing the necking die for water_adding entry lid shell of radiator was the stripping of the part after the forming and in_bending of symmetrical protruding ear.
散热器加水口盖壳缩径模设计难点是对称凸耳成形及内弯后脱取工件困难。
2) reducing diameter
缩径
1.
The results showed that the major cause of reducing diameter was more non-metallic inclusion in the steel than standard value,billet segregation and shrinkage void.
用扫描电镜、大型金相显微镜观察分析高碳钢盘条的缩径,结果表明:造成缩径的主要原因是盘条中的非金属夹杂物超标、方坯偏析和缩孔。
2.
The problem of reducing diameter has been taken a favorable turn by decreasing lifting speed of CFA and by setting up dewatering point well.
长螺旋钻孔泵压灌注CFG桩在层状土层的软硬分界处及软土中出现缩径 ,通过降低提钻速率和设置降水井点 ,缩径问题有所缓解 ,采取复打技术后彻底解决了缩径问
3) hole shrinkage
缩径
1.
Because of complex formation structure, hole shrinkage, wellbore collapse and lost circulation are easy to occur, leading serious pipe sticking.
该地区地层复杂,钻井施工中易发生缩径、井塌、井漏情况,并引起卡钻事故。
4) Sinking
缩径
1.
Simulation and application of extrusion-sinking technology for thin-walled tube;
薄壁管缩径挤压工艺的模拟分析与应用
2.
he deformation forces in each area are calculated by the basic areas and deformation characteristics of cylindrical tube sinking.
根据圆管缩径时的基本分区和变形特点，计算出了各区的变形力。
3.
At present, the research related to positive-negative forming theory of revolving shell is imperfect in some aspects(such as push sinking mechanism of shell), and is deficiency in some aspects(such as forming mechanism of compound bulging).
目前，有关回转壳体正负成形理论的研究，有些方面(如壳体的推压缩径——负成形的机理)不完善，有些方面(如壳体的复合胀形——正成形的机理)还未涉及，而生产实践却迫切需要理论的深入研究。
5) reducing
缩径
1.
Based on such analysis,some criteria and methods have been proposed for judging the situation of honeycomb,segregation,reducing,diameter extension,breaking zone and sedimentation on the bed of pile,etc.
分析了常见桩身缺陷产生的原因以及反射波波形和参数的特点,提出了基桩存在蜂窝、离析、扩径、缩径、断裂以及桩底沉渣等情况的判断依据和方法。
6) undergauge
缩径
1.
The relationship of drilling fluid density and formation dip with borehole undergauge creep deformation encountered in salt beds in Xinjiang Oilfield drilling was studied.
研究了新疆某油气田钻遇的盐岩层段钻井液密度、地层倾角与井眼蠕变缩径的关系。
2.
The undergauge problem of top formation always affected the exploration and development of Tahe oilfield.
塔河油田上部地层缩径问题一直困扰着该油田勘探开发,多年来未取得突破性进展,近年来中国石化石油勘探开发研究院通过科技攻关,在大量的室内实验基础上,从地质、工程二个方面全面系统地总结出该地区上部地层缩径的机理原因,制定出了以钻井液技术为核心的解决上部地层缩径的综合技术对策,为今后塔河油田“多、快、好、省”的油气勘探开发提供了有效的技术支持。
3.
Many of related references at home and abroad were studied in the paper, Finite Element simulation research method was put forward as the main research method on the mechanism of borehole undergauge induced by formation creep.
本文收集了国内外关于地层蠕变方面的大量文献资料,提出用有限元仿真模拟研究方法作为研究地层蠕变导致井眼缩径机理的主要研究方法。
参考词条
补充资料：玻璃纤维增强聚乙烯醇缩丁醛改性酚醛模塑料
分子式：
CAS号：
性质：由苯酚、苯胺、甲醛在氧化镁催化剂的作用下，加热缩聚脱水，再加聚乙烯醇缩丁醛的乙醇溶液，搅拌均匀，制得聚乙烯醇缩丁醛改性的酚醛树脂，以此树脂液为黏结剂，浸渍无碱玻璃纤维，经烘干制得玻璃纤维增强聚乙烯醇缩丁醛改性的酚醛模塑料。它具有良好的工艺性、制品机械性能、电性能和耐化学品性能优良，用于制造机械强度和电绝缘性能要求高的产品和制件，如手柄、退弹器、破甲弹垫板以及耐热、防湿、防腐、绝缘性能良好的电器零件等。
CAS号：
性质：由苯酚、苯胺、甲醛在氧化镁催化剂的作用下，加热缩聚脱水，再加聚乙烯醇缩丁醛的乙醇溶液，搅拌均匀，制得聚乙烯醇缩丁醛改性的酚醛树脂，以此树脂液为黏结剂，浸渍无碱玻璃纤维，经烘干制得玻璃纤维增强聚乙烯醇缩丁醛改性的酚醛模塑料。它具有良好的工艺性、制品机械性能、电性能和耐化学品性能优良，用于制造机械强度和电绝缘性能要求高的产品和制件，如手柄、退弹器、破甲弹垫板以及耐热、防湿、防腐、绝缘性能良好的电器零件等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。