Selection of the structure of the Cots

The choice of rubber roller structure is generally considered in terms of yarn quality requirements, pressure volume, cost and other factors.
The rubber roller structure usually has four types: single layer (now eliminated), double-layer, aluminum lined pipe and multi-layer. A kind of rubber roller, which is developed by uurekang company, is mainly designed to increase the elasticity of the cots to cover a thin Shaoer A hardness of 62 degrees NBR near the aluminum layer, and the rubber coating on the outer layer of shore A with a hardness of 65 or 75 degrees. During the selection process, aluminum liner is used when the yarn quality is high, and the rest is double layer; aluminum liner is used when the pressure resistance is high, and the pressure resistance is low, then the double layer is used.
The misunderstanding of structure selection is mainly embodied in two aspects, either the use of double decker cots, or all the use of aluminum liner cots, rather than the actual requirements of the enterprise. This misunderstanding is mainly due to failure to grasp the principle of structural selection.
In theory, both aluminum liner and double roller have advantages. The pressure resistance, stability and simplicity of the aluminum liner are superior to double cots, but the price is higher than that of double cots. Because of the longer ripening period of the double cots, the inner stress is large and the inner stress is easy to be aged, so we generally recommend the use of aluminum liner, but the quality is not high or the back roller is more suitable for the cost consideration or the use of double roller.