DN1600 loose set limit compensation joint material introduction
Mar-23-01
The liquid refrigerant flowing out of DN1600 loose-fitting joint enters the DN1600 loose-fitting joint in the supercooled state at point 1, and the liquid supercooling decreases with the pressure until it becomes saturated liquid, i.e. theoretical DN1600 loose-fitting joint at point 2, and the refrigerant state in this section is single-phase liquid. In this section, DN1600 loose set limit compensation joint is adiabatic flow in the tube, and the pressure drop in the liquid part of the tube is a straight line because the flow rate is unchanged.
When the inlet pressure of DN1600 loose-fitting limit compensation joint is kept constant, the mass flow rate of refrigerant will not be infinite with the decrease of outlet pressure, but will be kept constant without the influence of outlet pressure after reaching a certain value, and the critical flow phenomenon will also appear. shape memory characteristic shape memory is when the parent phase of a certain shape is cooled from above Af temperature to below Mf temperature to form martensite, the martensite in After the temperature deformation below Mf is heated to below Af temperature, along with the reverse phase change, DN1600 loose-fitting limit compensation joint will automatically recover its shape at the time of the parent phase.
Through the study of the mechanism of DN1600 loose set limit compensation joint, due to the small diameter of DN1600 loose set limit compensation joint and the large flow rate of DN1600 loose set limit compensation joint, usually, there will be a sub-stable state of liquid - the presence of superheated liquid, which makes DN1600 loose set limit compensation The temperature and pressure of the joint do not correspond to the general DN1600 loose set limit compensation joint delay of about 3 c. The gas-liquid two-phase mixture inside the DN1600 loose set limit compensation joint is also a compressible fluid, and in fact the shape memory effect is a thermally induced phase change process of the NiTi alloy.
The phenomenon that the strain can be automatically recovered during unloading. That is, in the parent phase state, due to the role of applied stress, resulting in stress DN1600 loose-fitting limit compensation joint phase change occurs, so that the alloy exhibits mechanical behavior different from that of ordinary materials, DN1600 loose-fitting limit compensation joint no thermal involvement. In a word, DN1600 loose set limit compensation joint means that the stress does not follow the strain within a certain deformation range, and the stress-strain curve of the former is close to a linear relationship between stress and strain.