1) reducing swage
锻制异径管
2) merchant pipe
标准锻制管
3) reducer
[ri:'dju:sə]
异径管
1.
The concentric reducer in transfer oil line and some of the bends in the front of radiation section of cylindrical furnace in furfural equipment in a refinery suffered localized corrosion.
针对某炼油糠醛精制装置的抽出油加热炉出现转油线同心异径管及辐射段前流段的弯头局部腐蚀减薄的情况,从管件材料性能、蚀坑形貌、流体特性等多方面进行原因分析,确认主要是气泡冲蚀腐蚀的结果。
2.
Standard system for reducers commonly used at home and abroad was introduced, thirty(30) safety incident cases caused by reducer failure were analyzed from aspects of fitting, welding, erosion, breakage, stress corrosion etc.
介绍了国内外常用异径管标准体系,从管件、焊接、冲蚀、爆裂、应力腐蚀等方面分析了30起由异径管失效而引起的安全事故案例;从失效分析和理论研究方面综述了国内外异径管的研究概况。
3.
Detailed siress analysis was carried out for a section of the pipeline including an eccentric reducer on which long cracks appeared twice.
进而对曾两次出现长裂纹的偏心异径管管段进行细部应力分析。
4) tapered pipe
异径管
1.
The tapered pipe in air-cooling accessory line of a certain ammonia synthetic tower was cracked.
某厂氨合成塔冷气副线异径管发生爆裂事故,进行技术检验后分析了爆裂原因,材质为20钢的异径管内是高压富氢介质,氢分压21 MPa,该冷气副线长期处于关闭状态,由于副线中心管填料密封失效,使异径管长期超温工作,异径管在超温高压富氢介质工况下发生了氢腐蚀低应力脆性断裂。
2.
Based on statistics analysis of an invalid tapered pipe with finite element software Pro/MECHANICA,the stress distribution diagram was obtained and cause of tapered pipe failure was found.
利用有限元软件Pro/MECHANICA对一失效的异径管进行了静力学分析,得到了异径管应力分布图,找到了异径管失效的原因。
5) bend reducer
异径弯管
1.
The formula of circumferential membrane stress of bend reducer under internal pressure has infer according to its two characteristics in structure,one of which is that the radius of cross section of loop should change with the meridian bending angle,and the other is that it is a conical shell.
根据异径弯管横截面管径随经向弯角而变化及其锥形结构的两个特点,推导了内压作用下异径弯管无力矩环向应力式,最大环向应力位于大端内侧。
6) different diameters pipe temperament
异径管律
1.
Based on modem acoustic theory,the data of different diameters pipe temperament by ZHU Zaiyu and the revised data by YANG Yinliu are analyzed and calculated.
以现代声学理论为依据,对朱载培异径管律的数据和杨荫浏的修正数据,从不同角度在大范围内进行了分析和计算。
补充资料：异径管
分子式：
分子量：
CAS号：
性质：又称大小头。化工管件之一，用于两种不同管径的联接（参见管件）。
分子量：
CAS号：
性质：又称大小头。化工管件之一，用于两种不同管径的联接（参见管件）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条