Hose bellows are extremely thin, seamless or welded stainless steel tubes fabricated by high precision plastic processing. Because the elastic characteristics of corrugated tube profile determines the hose has good flexibility and fatigue resistance, making it very easy to absorb all kinds of motion and deformation of cyclic loading, especially has the ability to compensate for large displacement in pipeline system. Medium visibility (inter view), process automation. The movable cylinder in the vulcanizing machine will move up and down as a result of the need for loading and unloading the mould. After repeated reciprocating movement of the copper coiled pipe, fatigue fracture will occur, and the repair will cause time loss even though the repair can continue to be used. Although the rubber tube has the good soft characteristic, the antifatigue ability is also very strong. But in the pressure, temperature, anti-aging and other aspects of the weak link, the general use of a few months later, it can not continue. The performance of this combined metal hose good have been fully reflected. In the industrial field, in addition to the pressure and temperature, there always exist some conditions such as fatigue, corrosion, vibration, compression and impact demanding, in this case, the mobile is used to compensate the pipeline position. In a complex pipeline system, often because of space constraints, resulting in difficulties on installation, forming the pipe is not up; bend past, coming together; installed pipes will inevitably produce local cold correction. The size of the pipe is different from that of the spot, and the cold correction ranges from a few millimeters to a few tens of millimeters, and some to 100 millimeters. Practice has proved that the greater the volume, the higher the internal stress, the residual stress in the installation of the pipe system is undoubtedly greatly hidden interest. The inner pipe of the corrugated pipe is a spiral or ring-shaped thin-wall stainless steel bellows, and the outer sleeve of the corrugated pipe is made of stainless steel wires or steel strips woven according to certain parameters. The joint or flange at the ends of the hose is matched to the connector or flange of the customer's pipe. Due to the small internal stress of freely bending and bending radius at rated conditions produced by bending so that it can bring great convenience to the installation work, the safe operation of the pipeline system also plays a certain role. The main reason for the use of metal hoses in these piping systems is the main reason. In a certain type of engine, the lubrication oil pipe of a bearing is broken frequently during the actual operation, which is caused by the excessive installation stress