1) copper rifled tube
内螺纹钢管
2) Optimum internal-spiral steel pipe
优化内螺纹钢管
3) spiral steel tube
螺纹钢管
1.
Taking saturated ammonia vapor of the large-scale refrigeration system as working material and carrying out experimental research on condensed heat exchange which takes place in the outer surface of 4 kinds of spiral steel tube whose height is 4 000 mm,norm related formula of outer tube s condensed heat exchange is gained.
以大型制冷系统中的饱和氨蒸气为工质 ,通过在高度为 40 0 0 m m的四种螺纹钢管外表面上凝结换热的试验研究 ,得到了管外凝结换热的准则关联式。
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) 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
补充资料：宝鸡石油钢管厂大口径薄壁钢管的φ508排辊成形机组
宝鸡石油钢管厂大口径薄壁钢管的φ508排辊成形机组
宝鸡石油钢管厂大口径薄壁钢管的中508排辊成形机组
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