2) 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。
3) 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) asymmetrical rolling
异径轧制
1.
Experimental study on asymmetrical rolling with work roll edge contact;
异径轧制低碳钢的力学性能参数与粗糙度实验研究
6) Radial variation
径向变异
1.
Totally 26 provenance stands of 17-year-old Pinus koraiensis were selected for investigating genetic variation in different provenances and the trend of radial variation of wood quality in the direction of cone to tree bark.
对帽儿山地区 1 7年生 2 6个红松种源试验林进行了材质性状研究 ,主要包括材质性状在不同种源间遗传变异情况以及从髓心到树皮径向变异模式研究。
2.
8% radial variation of the growth ring width were resulted by climate change from April of the previous year to September of the same year.
应用响应函数分析方法研究了东北地区人工林红松生长轮宽度对月平均气温等气候因素变化的响应,结果表明:前一年4月到当年9月的气候变化对人工林红松生长轮宽度径向变异可产生40。
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