1)internally ribbed tube内螺纹管
1.Design and optimization of air pre-heater with internally ribbed tube;内螺纹管空预器的设计和优化
2.The application of heat pipe and internally ribbed tube in air pre-heater;热管和内螺纹管在低温空气预热器中的应用
3.Study of enhanced heat transfer of single phase turbulent flow of kerosene in internally ribbed tube;内螺纹管中煤油单相紊流强化传热研究
英文短句/例句
1.internal ribbed tube内肋片管，内螺纹管
2.Ivestigation on Flow Boiling Heat Transfer Characteristics of R290 and R404A in Horizontal Microfin Tube;R290与R404A内螺纹管中沸腾换热研究
3.Non-linear Finite Element Analysis of Cold Drawing Internal Rifled Tubes Process;冷拔内螺纹管成型过程的非线性有限元分析
4.NPSI (American Standard Internal Straight Pipe Threads)美国标准内直管螺纹
5.reducing extension piece异径内外螺纹管接头
6.Situation of technological develop ment of welding internal -thread cop per tubes and seamless internal -thread coppertubes at home and abroad国内外焊接内螺纹铜管与无缝内螺纹铜管的技术发展状况
7.external and internal thread grinding machine外螺纹及内螺纹磨床
8.pin-to-box pipe阳螺纹-阳螺纹管子
9.Tubing thread is available for API tubing threads and TM threads.油管螺纹可采用API油管螺纹，或TM螺纹。
10.carbide tool shank for petroleum pipe internal threading石油管内螺纹硬质合金刀杆
11.Three dimensional FE simulation of ball spinning of inner grooved copper tubes内螺纹铜管滚珠旋压三维有限元模拟
12.Study on Algorithm of CAT for Joint Internal Thread;管接箍内螺纹CAT系统计算方法的研究
13.Inside Weld Crack Analysis and Control of SSAW Pipe螺旋埋弧焊管内焊缝裂纹分析与控制
14.FE simulation on the ball spinning forming of inner grooved copper pipe内螺纹铜管滚珠旋压成形有限元模拟
15.Evaporation heat transfer in smooth and internal grooved tubes;水平光管和内螺纹强化管内换热性能的研究
16.NPT tapered tube thread gaugesNPT锥管螺纹量规
17.Application of New Type Small Copper Tube with Inner Screw in Air Conditioner Heat Exchanger;新型小管径内螺纹铜管在空调换热器中的应用
18.Nuts have internal (or female) threads to match those of the Bolt.螺母上有内(或阴)螺纹,与螺栓上的螺纹相啮合。
相关短句/例句
microfin tube内螺纹管
1.Review on experimental research of flow boiling with pure refrigerants in horizontal microfin tubes;纯工质水平内螺纹管内流动沸腾实验研究进展
2.Considering R404A as a pure and mixed refrigerant respectively, the boiling heat transfer coefficients were calculated inside horizontal 9.比较了CAVALLINI的纯质和混合工质水平内螺纹管中流动沸腾换热系数的关联式,结果显示在内螺纹管中,对近共沸混合工质R404A的沸腾换热系数进行工程计算时,R404A被看作纯质和混合工质计算所得的沸腾换热系数值差别最大不到10%,因此可将其以纯质对待;对CAVALLINI的纯质和混合工质、KOYAMA及THOME等四个水平内螺纹管流动沸腾换热系数的影响因素进行对比分析,结果表明R404A的沸腾换热中对流沸腾换热占主导地位,且随干度增加而增加。
3.Because research on substitutions for R22 shows that the heat transfer abilities of its substitutions are less than that of R22, microfin tubes are applied to augment in-tube evaporation and condensation heat transfer.研究了文献中的几个通用性较好的光管、内螺纹管沸腾换热系数计算关联式，并深入分析了各内螺纹管沸腾换热系数关联式的联系与区别。
3)rifled tube内螺纹管
4)rifled tubes内螺纹管
1.Drawing rifled tubes with reversed-cone plug;倒锥形芯棒拉拔内螺纹管工艺的实验研究
2.Rib distortion during rifled tubes drawing is due to the excessive lateral Pressure or displacement.内螺纹管拉拔过程中内螺旋凸筋的畸变是由于已形成的凸筋侧壁在过大的侧向力或侧向 位移的作用下引起的，本文从理论上分析了内螺纹管产品几何尺寸和工艺参数对畸变的影响，并对 芯棒与凹模的轴向相对位置对内螺纹管拉拔成形质量的影响进行了研究。
5)internal rifled tubes内螺纹管
1.At present, the main method of producing internal rifled tubes is short mandrel drawing method.内螺纹管是一种热力学性能良好的异形管材,它被广泛地应用于大型电站锅炉。
2.One of the main methods of producing internal rifled tubes is short mandrel drawing method.内螺纹管是指内表面带有螺旋凸筋的一种特殊管材,其热力学性能良好,广泛用于大型电站锅炉和空调器作为水冷壁管或冷凝管,且需求量逐年增加。
6)inner grooved copper tube内螺纹铜管
1.Analysis and study on the shaping process of inner grooved copper tube tooth;内螺纹铜管齿形成形机理的探讨
2.The performance experiments on separate heat exchanges and integrated air conditioners before and after optimizing the inner grooved copper tube and reducing the thickness of aluminum foil are made.对内螺纹铜管尺寸优化、铝箔厚度减薄前后的空调热交换器进行了单体性能实验和整机性能实验对比。
3.This paper introduces the production process and major equipments adopted in the production of 13kt/a smooth copper tube with "horizontal continuous casting - planetary rolling" and the production of 25kt/a inner grooved copper tube with " planetary ball milling spinning" of a company.简要介绍了某公司采用水平连铸-行星轧管法生产13kt/a光面铜管及采用行星球模旋压工艺生产25kt/a内螺纹铜管的生产工艺和所选用的主要设备。
延伸阅读
攻螺纹、套螺纹及其注意事项常用的在角螺纹工件，其螺纹除采用机械加工外，还可以用钳加工方法中的攻螺纹和套螺纹来获得。攻螺纹（亦称攻丝）是用丝锥在工件内圆柱面上加工出内螺纹；套螺纹（或称套丝、套扣）是用板牙在圆柱杆上加工外螺纹。 一、攻螺纹 1.丝锥及铰扛 （1）丝锥 丝锥是用来加工较小直径内螺纹的成形刀具，一般选用合金工具钢9SiGr制成，并经热处理制成。通常M6～M24的丝锥一套为两支，称头锥、二锥；M6以下及M24以上一套有三支、即头锥、二锥和三锥。 每个丝锥都有工作部分和柄部组成。工作部分是由切削部分和校准部分组成。轴向有几条（一般是三条或四条）容屑槽，相应地形成几瓣刀刃（切削刃）和前角。切削部分（即不完整的牙齿部分）是切削螺纹的重要部分，常磨成圆锥形，以便使切削负荷分配在几个刀齿上。头锥的锥角小些，有5～7个牙；二锥的锥角大些，有3～4个牙。校准部分具有完整的牙齿，用于修光螺纹和引导丝锥沿轴向运动。柄部有方头，其作用是与铰扛相配合并传递扭矩。 （2）铰扛 铰扛是用来夹持丝锥的工具，常用的是可调式铰扛。旋转手柄即可调节方孔的大小，以便夹持不同尺寸的丝锥。铰扛长度应根据丝锥尺寸大小进行选择，以便控制攻螺纹时的扭矩，防止丝锥因施力不当而扭断。 2.攻螺纹前钻底孔直径和深度的确定以及孔口的倒角 （1）底孔直径的确定
