What is the tolerance range of precision screws?
What is the tolerance range of precision screws?
Stainless steel screws, as the name suggests, must be made of stainless steel screw wire, and then screw the screw thread. Many of the properties of stainless steel screws are related to stainless steel. Taking into account the properties and organization of stainless steel, understand the properties of stainless steel materials and other aspects. Therefore, it is understood that stainless steel has good mechanical properties such as anti-rust, anti-corrosion, high temperature resistance, etc., then stainless steel screws also have these good mechanical properties. With the increasing quality of stainless steel materials. The mechanical properties of stainless steel screws produced by the screw industry are getting better and better. Anti-rust, anti-corrosion ability, and high temperature and high pressure are getting stronger and stronger.
rivet automatic feeding device comprises a feeding installation frame, the upper end of the feeding installation frame is provided with a horizontally arranged receiving block mounting plate, the upper surface of the receiving block installation plate is provided with a rivet receiving block, a rivet The upper surface of the receiving block is provided with a receiving block movable groove that opens upward and completely penetrates left and right. The left movable receiving rod can be embedded in the receiving block movable groove relatively movably, and the right movable receiving rod is located on the right end side of the left movable receiving rod. The receiving rod, the right end of the left movable receiving rod is provided with a left receiving groove that opens upward, and the left end of the right movable receiving block is provided with a right receiving groove that opens upward;
The shear strength of a metal material refers to the ability of the material to withstand shearing force, which refers to the strength of the external force perpendicular to the material axis and shearing the material. The test is usually to install the cylindrical pin into the specified fixture, and the gap between the supporting part and the loading part is required to be no more than 0.15mm, and then force is applied to test the shear strength of the material.
In the switchgear of high and low voltage power equipment, the surface of many switchgear shells is painted or sprayed with plastic, and the installation beams and other parts of the switchgear and the entire cabinet must be continuously grounded according to the requirements of switchgear standards to improve the safe use of equipment. Because the common screw, spring washer, flat washer and nut type structural connection between the surface of the shell and the metal mounting beam cannot meet the requirements of grounding continuity, in order to meet the requirements, the surface of the shell is painted or Before spraying, special grounding studs must be welded. With the increase of installation beams, the number of welded studs must also increase, which increases the complexity of the product processing technology, wastes man-hours and increases costs.
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