螺纹管

• Screwed stud - ends ; tapped holes ; for compression fittings , valves , screw plugs , screwed stud - ends type e ; design dimensions
  压合接头阀门螺旋塞和e型螺纹管堵用螺纹管堵和螺
• Product categories include stainless steel round tubes , square tubes , rectangular tubes , embossedtubes and threaded tubes , etc
  产品的种类包括：不锈钢圆管、方管、矩管、压花管、螺纹管等。
• Test method for determining chemical compatibility of thread sealants with thermoplastic threaded pipe and fittings materials
  测定热塑性螺纹管和配件材料的螺纹密封件的化学兼容性的试验方法
• Fittings for food , chemical and pharmaceutical industry - stainless steel screwed pipe connections - design for rolling in and welding - on
  食品,化学和医药工业用管接头.不锈钢制螺纹管连接件
• Standard test method for determining chemical compatibility of thread sealants with thermoplastic threaded pipe and fittings materials
  热塑性螺纹管和配件材料用螺纹封装剂的化学兼容性测定的标准试验方法
• Refer to some application examples of inner trachea tubular air pre - heater in power plants it is a good replacement pipe of the old smooth pipe
  所以，在用内螺纹管代替光管进行管式空预器的设计时，需要进行全面的核算。
• This is machine is special for producing round flat corrugated ducts used in expressway , bridge , train and large - span post - tension concrete project
  Sb - jg - 110型卷管机，是用于卷制作为桥梁建筑预应力施工中预留孔道的螺纹管的机器。
• The mesh of copper tubes and loading ways of the balls are the key problems during three dimensional fe simulation of ball spinning of inner grooved tubes
  摘要内螺纹管滚珠旋压三维有限元模拟中，铜管的网格划分和滚珠加载方式是模拟的关键问题。
• Successfully simulated and replayed the complicated ball spinning of inner grooved tubes through the establishment of simplified sixth rotational symmetrical fe model and the adapting of local remeshing techniques
  通过建立简化的六分之一旋转对称模型和采用网格局部重划分技术，成功地模拟和再现内螺纹管滚珠旋压成形过程。
• 4 . the effects of geometrical parameters of microfin tubes on the in - tube boiling heat transfer coefficients is analyzed . in addition , the principles on intensifying heat transfer in microfin tube is also analyzed
  对r290和r404a ，通过研究koyama和thome关联式，分析了内螺纹管齿高、螺旋角等齿型参数对工质沸腾换热性能的影响。