The metal fasteners in the fastening standard parts often rust due to various causes. When rust occurs, some fasteners will show all the answers to the lock, which causes the operation of the fastener body to lose efficiency, that is, Unable to overtake or continue to lock the fasteners. The complete locking of fasteners can only occur within a few seconds. Therefore, it is necessary to understand and use fasteners more correctly to prevent the occurrence of locking.
The locking of the standard parts of the standard parts manufacturers is caused by the products formed of stainless steel or folded gold materials. Custom-made stainless steel screws. This is because these metal materials have the ability to prevent corrosion. Stainless steel screws. Once the metal of the fastener is damaged, an oxide layer will appear to provide protection to prevent corrosion. The standard parts manufacturers should tighten the fasteners, the pressure and heat generated by the force will damage the oxidation. Layer, causing obstruction or shear between the metal threads, leading to adhesion, which is lock.
What are the requirements for the manufacture of fastener gaskets?
1. The tooth-shaped metal ring should generally be an integral structure. If a welded structure is adopted, the following requirements shall be met: a. The user’s consent shall be sought; b. The weld structure shall be of full penetration type, and the number of welded joints shall not exceed 2, and the stress relief heat treatment shall be carried out after welding; c. Covering layer Before covering, the tooth profile and size of the weld should be consistent with other parts.
2. The flatness of the toothed metal ring should not be greater than 1/100 of the outer diameter of the gasket.
3. The covering layer material should be firmly pasted on the toothed metal ring, so that it will not fall off during transportation or installation. Use adhesives to prevent corrosion of metal materials. The number of splicing joints should not be more than two, and when lap joints are used, the two overlapping parts shall be spliced with a diagonal cut; or when butt joints are used, the joints shall be covered with a thinner covering layer material.
4. The fastener movable centering ring and the centering groove on the tooth-shaped metal ring should maintain a proper gap, which does not hinder its free movement when it is heated and expanded. Tailor welding can be used for the active center ring.
