4
MARINE PROPULSION PUMP WITH TWO COUNTER ROTATING IMPELLERS.ppt
推进水泵外壳水通道包括一个入口,一个出口,以及之间的入口和出口,第一个叶轮的套管,第二个叶轮位于中间的部分位于中间的部分套管的中间部分,第一叶轮,轴drivingly第一个连接到第一个叶轮,由此向前延伸,有一个中空的内部,第二轴drivingly连接到第二叶轮,在空心内部延伸rearwardly第一轴和由此向前,并为反旋转的第一和第二轴传动装置。
43
[机械/仪表]ENTEK Co-rotating Twin-Screw Extruders.ppt
[机械/仪表]ENTEK Co-rotating Twin-Screw Extruders

co-rotating cotwintwin-screw extruders
presented by kirk hanawalt

1

types of extruders
• single screw
– injection molding – profile extrusion and foaming

• less complicated than twin-screw extruder (simple gearbox, single screw, simple barrel) → less expensive • less capable for mixing and de-volatilization than twinscrew • drag flow is not suitable for all materials, esp. liquids and low-viscosity gels

2

types of extruders
• twin-screw counter-rotating
– pvc – foaming – shear-sensitive materials, esp. wood

• screws and barrels usually non-segmented • low speed (40 rpm screw speed typical, 200 rpm maximum), high torque → low power • positive displacement pump • mixing capability limited by low screw speed • de-volatilization limited by poor surface renewal

3

types of extruders
• twin-screw co-rotating
– – – – compounding
27
Mechanical Waves.ppt
Mechanical WavesMechanical WavesMechanical Waves
34
waves energy.ppt
waves energy
12
Telecommunication. Sound Waves..ppt
Telecommunication. Sound Waves.
55
Britannia Rues the Waves.ppt
BritanniaRues WavesByAndrew NeilThe Passage Topic: Britain losingits share shippingtrade worldmarket
51
Using Waves - Ktaggartcouk.ppt
Using Waves - KtaggartcoukUsing,Waves,using,waves
54
113Britannia Rues the waves.ppt
113Britannia Rues the waves113Britannia Rues the waves113Britannia Rues the waves
73
Ch16 Waves and Sound.ppt
1Ch16.Waves SoundTheNature WavesWaterwaves have two features common allwaves:1. travelingdisturbance
85
Waves and Radiation - educo.vln.school.nz.ppt
Waves and Radiation - educo.vln.school.nz

向豆丁求助:有没有rotating waves?

如要投诉违规内容,请联系我们按需举报;如要提出意见建议,请到社区论坛发帖反馈。