The
flat pad gaskets are used as a part to prevent the bolt and nut from locking. flat pad gaskets are used wherever fasteners are used. How to choose suitable flat pad gaskets? flat pad gaskets are the type of gaskets, which mainly increases the contact area between the screw and some large equipment and tightens it. When using flat pad gaskets, they are often suitable for nuts to be used together. In order to better use the
flat pad gaskets, when choosing flat pad gaskets,try to choose flat pad gaskets with anti-rust and anti-corrosion material dip-plating, which not only saves time and effort, but also can play a good role in the flat pad gaskets.
Criteria for selection of flat washers when used with bolts and nuts:
1. When choosing gasket materials, attention should be paid to the electrochemical corrosion problem when different metals are in contact. The material of the
flat pad gaskets is generally the same as that of the connected parts, usually steel, alloy steel, stainless steel, aluminum alloy, etc. When electrical conductivity is required, copper and copper alloys can be selected.
2. The inner diameter of the flat pad gaskets should be selected according to the larger diameter of the thread or screw, and the outer diameter should be larger if the material to be connected is soft (such as composite material) or matched with the spring gaskets.
3. When choosing to place the W gaskets under the bolt or screw head, in order to avoid the interference between the fillet under the head and the gaskets,
flat pad gaskets with inner hole chamfers can be selected.
4. For important bolts with larger diameters, or in order to increase the anti-extrusion capacity, steel washers should be used. Tension bolts or tension-shear composite bolt connections shall use steel gaskets.
5. Special gaskets are used for special requirements. For example, copper gaskets can be used for electrical conductivity, sealing gaskets can be used for air tightness requirements.
