How to prevent self tapping screws from becoming stiff or bent?
For those who frequently use self tapping screws, it is obvious that self tapping screws must undergo heat treatment, which is commonly known as hardening. Due to the use of self tapping screws or screws for drilling and tapping to achieve tight connections, it is required that self tapping screws themselves have strong hardness in order for them to function effectively.
The newly produced self tapping screws have insufficient wire hardness to meet customer requirements. At this point, we need to perform heat treatment on the screw, that is, hardening the screw. At that time, we often didn't pay attention.
During the hardening process, some tapping screws may bend, especially the appearance of long screws is less noticeable. So, what should we pay attention to in this situation? How can we better prepare for this and reduce screw damage?
Heat treatment causes bending of tapping screws, which is often caused by stacking problems of heated tapping screws. The area of the long screw is large, and some screws are uneven due to stacking, resulting in bending. Of course, besides this reason, there are many other factors that determine this.
For example, factors such as rapid furnace temperature rise and high quenching temperature are variable bending factors. When the heating furnace temperature is too high, the critical point of the material is too large, which can easily cause deformation.
Therefore, titanium standard parts manufacturers have stated that both hardware manufacturers and consumers should be aware of the above points during the heat treatment hardening process of self tapping screws to prevent defective products or damage to the screws.
