The flat pad, which is mainly punched out with an iron plate, is
generally a flat washer with a hole in the middle. This hole size
specification is generally based on customer requirements.
Flat washers are usually thin pieces of various shapes to reduce
friction, prevent leaks, isolate, prevent loosening, or distribute
pressure. This material is used in many materials and structures to
perform a variety of similar functions. Due to the limitations of
the material and process of the threaded fasteners, the bearing
surfaces of the fasteners such as the bolts are not large, so that
the surface of the parts to be joined is protected to reduce the
compressive stress of the bearing surface, and washers are used. In
order to prevent loosening of the connection pair, loose-proof
spring washers and multi-tooth lock washers, round nut stop washers
and saddle-shaped, corrugated, conical elastic washers are used.
Flat washer is generally used in fitting a soft texture, is a hard
and brittle, its role is largely increase the contact area,
dispersing pressure, prevent the quality of a material soft crush.
Flat mat is: 1, increase the contact area of the screw and machine
2, eliminate the trampoline at the time of discharge screw damage
on the surface of the machine.Must be: when using a flat pad,
spring pad flat pad close to the surface of the machine, spring
cushion between the plain washers and nuts. Flat pad is in order to
increase the screw surface.Spring pad to prevent screw loosening,
force when a certain amount of buffering effect. Although flat mat
can do sacrifice pad.But more often is used as supplement pad or
flat mat.And the spring pad a lock.Such as the workpiece hole
diameter value and the screw diameter is too large when not using a
flat mat or direct use of spring washers, will not only harm the
artifacts.
Flat washer is generally used to distribute the load of a threaded
fastener, such as a bolt, scres or nut. Other uses are as a spacer,
spring (wave washer), wear pad, preload indicating device, locking
device, and to reduce vibration , rubber washer. Washers usually
have an outer diameter (OD) about twice larger than their inner
diameter (ID).
