The control part of tubeexpander adopts the structure of double bearings.
它的控制部分采用双轴承结构。
2
The huge TubeExpander for Heat Exchanger of Air Conditioner and Refrigeration System are developed first by our institute after studying for a long time.
The working principle of boiler tubeexpander is elaborated and the formula for calculating the related parameters is derived in this paper according to the theory of mechanics of rigid body.