Refers to the part between the connection piece and the nut. A generally flat metal ring is used to protect the surface of the connected piece from scratching by the nut and distribute the pressure of the nut on the connected piece. What are the classifications of the gaskets? Today, Pe Gasket manufacturers will come and introduce to you in detail what the classifications of gaskets are.
Washers are divided into: flat washer-C grade, large washer-A and C grade, extra large washer-C grade, small washer-A grade, flat washer-A grade, flat washer-chamfer type-A grade, high for steel structure Strength washer, spherical washer, conical washer, square inclined washer for I-beam, square inclined washer for channel steel, standard spring washer, light spring washer, heavy spring washer, internal tooth lock washer, internal serrated lock washer, External tooth lock washers, external serrated lock washers, single-ear stop washers, binaural stop washers, external tongue stop washers, stop washers for round nuts.
Flat washers are generally used in connectors. One is soft and the other is hard and brittle. Its main function is to increase the contact area, disperse the pressure, and prevent the soft texture from being crushed. The basic function of the spring washer is to give the nut a force after the nut is tightened, increasing the friction between the nut and the bolt! The material is 65Mn (spring steel), the heat treatment hardness is HRC44 ~ 51HRC, and the surface is oxidized.
Washer (spring) washer, circlip is an elastic pad or card lock washer is a kind of washer to prevent bolts from loosening. The working principle of the lock washer is very simple. It consists of two pieces of washers. The outside is a surface with radial relief, while the inside is a helical tooth surface. When assembling, the inner helical tooth surfaces are opposed to each other, and the outer radial embossed surface is in a state of engagement with the contact surfaces at both ends. Staggered, it produces lifting tension, so as to achieve 100% locking.
Spring washers are widely used in load-bearing and non-load-bearing structures of general mechanical products. They are characterized by low cost and easy installation and are suitable for parts with frequent assembly and disassembly. The automatic selection of washers is included, but the anti-loosening ability of spring washers is very low! Especially in the European and American countries that require high reliability, the adoption rate is extremely low, especially the important load-bearing structure connection parts that have been abandoned. Our country has some applications in the military industry, but it has been improved to stainless steel. Steel spring washers have been banned in CASC for a long time! It is also very unsafe because there are two 1 "expanding ring" 2 is hydrogen embrittlement.
Spring washers are often called spring pads in the screw industry. Its materials are stainless steel and carbon steel, carbon steel is iron. Commonly used spring washer sizes M3, M4, M5, M6, M8, M10. M12, M14, M16. These specifications are more commonly used. Spring washer national standard GB / T 94.1-87, the standard specifies a standard type spring washer with a specification of 2-48mm.