Company how to guarantee the spring hot work?
To hardware spring can work under the high temperature stability, need it to have a very good relaxation resistance strength, thermal stability and oxidation resistance ability, but also has certain corrosion resistance ability. Why is this?
Because if hardware spring working temperature is high, the production of spring materials with the decrease of elastic modulus and the smaller it will to the bearing capacity of the spring stiffness and decline. So, want to make it can work at high temperatures we need to know the rate of change of it, you also need to calculate the decline of carrying capacity of spring using the performance impact. In accordance with the relevant provisions, general spring if work when the temperature is higher than 60 degrees, the need for its shear modulus have certain adjustment.
Used to make the spring spring steel, when the choice according to the stress of spring size and to determine the nature of its hardness, however, if there is a plane strain fracture, it may indicate is caused by the reason of the hardness.
If use a metal spring in the instrument or instruments, more manufacturers use a constant elastic alloy, because of its expansion coefficient change is very small, it is also in order to satisfy its precision is not affected by temperature changes.
In the selection of materials, the hardenability of steel can be need to pay attention to, this relationship in the quality of hardware spring is larger.