The detection of bolts is divided into manual and machine. And labor is the most primitive and the most common detection method used today. In order to minimize the outflow of defective products, the general production enterprise personnel shall examine the products packaged or shipped by visual inspection to eliminate the occurrence of defective products, including defects such as tooth injury, mixing, and rust.
The other way is the automatic detection of the machine, mainly using the magnetic particle inspection technology. The magnetic particle flaw detection is the interaction between the leakage magnetic field at the bolt defect and the magnetic powder. For the possible defects on the bolt, such as cracks, slag inclusions, mixing materials, etc., the magnetic permeability and the difference of the magnetic permeability of the steel are magnetized. The magnetic field at the discontinuity of these materials will undergo a change, and a part of the magnetic flux leakage will generate a leakage magnetic field on the surface of the workpiece to attract the magnetic powder to deposit magnetic defects at the defect of the magnetic powder, and the defect position and shape can be visualized under appropriate illumination conditions. And the observation and interpretation of the accumulation of these magnetic powders has reached the goal of eliminating defective products.
The way of introduction of brass bolts:
There are common and reamed holes. Ordinary main load bearing axial forces can also carry less demanding lateral forces. The bolts for the reaming holes are to be used in combination with the size of the holes to be subjected to lateral forces.
The above is the knowledge of bolts and nuts summarized in Xiaobian. I hope this article can help you understand bolts and nuts and know the related knowledge and functions of bolts and nuts.