Products
If you want to learn more, please visit our website HEGONG SPRING.
Disc Springs are conically-shaped precision components designed to be axially loaded. Disc Springs are often incorrectly referred to as belleville disc springs, belleville springs, belleville washers or simply conical washers. Disc Springs are unique and differ from other types of springs in that the force/deflection curves of Disc Springs are consistent and repeatable, and the minimum fatigue life can be reliably determined (per the standardized calculations of DIN EN (formerly DIN )). Disc Springs can be statically loaded either continuously or intermittently, or dynamically subjected to continuous load cycling. They can be used singly or in multiples stacked parallel, in series or in a combination thereof to achieve the desired force-deflection characteristic.
Disc Springs are preferred over other types of springs (such as coil springs, belleville washers, belleville springs and conical washers) when used in critical applications such as safety valves, clutch & brake mechanisms for elevators, and supports for industrial pipe systems due to their predictability, reliability and unparalleled fatigue life.
The advantages of Disc Springs compared to other types of springs include the following:
SPIROL offers the full range of DIN EN (formerly DIN ) Group 1 and 2 Disc Springs in Series A, B, and C. In addition to the DIN specified sizes, SPIROL stocks its own standard size range in outside diameters from 8mm to 200mm in order to meet the diverse needs of its customers. SPIROL standard Disc Springs meet all material, dimensional tolerance, and quality specifications as laid out in DIN EN (formerly DIN ) but in diameter and thickness combinations that are not included in the DIN standard.
SPIROL also offers a line of austenitic Stainless Steel Disc Springs.
SPIROL supplies single Disc Springs, as well as Pre-stacked Disc Springs in custom configurations, packaged in shrink wrap with a perforated tab for easy of assembly.
Select from our expansive standard offering, or take advantage of our complimentary Application Engineering support and allow us to work with you to help determine the most appropriate Disc Spring or Disc Spring Stack for your specific application and assembly needs!
For more information, please visit curved disc spring.
Obviously, the choice of available types of surface treatments is almost endless, therefore we think it sufficient to discuss only those treatments that currently are most commonly applied to disc springs. However, with consideration to &#;plating&#; treatments, it is absolutely essential to bear in mind the following:-
During the process of electroplating, hydrogen gas may be absorbed through the surfaces of the disc spring, which in turn may lead to the spring becoming brittle. Whilst it is possible that a subsequent heat treatment, referred to as de-embrittle may relieve this condition, our experience has shown this to be unreliable.
A zinc phosphate coating usually with subsequent oil or wax treatment. This treatment is widely offered as &#;standard&#; on most stock-range carbon steel disc springs. The protection offered is sufficient to prevent corrosion throughout storage and normal transit conditions. It is adequate also for those applications where the disc springs are not directly exposed to the elements. However, where the application involves a more hostile environment, i.e. disc springs open to weather or marine conditions, chemical or acid laden atmosphere, etc; then a superior treatment or material must be considered.
This is a method of depositing substantial thicknesses of zinc on the surfaces of disc springs without the risk of &#;hydrogen embrittlement&#; associated with normal electro-plating. The zinc is impacted onto the surfaces by way of tumbling the disc springs in a rotating barrel, together with glass beads, metal powder, and promoting chemicals. In addition to removing the risk of embrittlement, the &#;peening&#; aspect of this process is beneficial in terms of some stress relieving of the components. There are two forms of subsequent passivation treatment:-
As is the case with mechanical plating processes, the risk of hydrogen embrittlement is avoided with this method of chemically depositing a nickel coating. However, compared with other treatments discussed here, this process is relatively costly, but the high degree of corrosion resistance and smooth &#;satin-like&#; finish often justify the extra expense.
The sherardizing process again uses zinc, this time in the form of zinc dust mixed with an inert filler which, together with the parts to be coated, is placed in a sealed container. The container is placed in a special furnace and rotated at a temperature which is sufficient to &#;fuse&#; the coating but without risk of affecting the spring properties of the components. Coating thicknesses from 10 micro metres to 50 micro metres are possible, which makes for a wide range of protective coatings.
This process involves dipping the components in an organic resin and zinc mixture, the surplus is removed by spinning, and the bonding of the coating is completed at oven temperatures which have no effect on the metallurgical or heat treatment properties of the components. Salt-spray corrosion resistance tests on this coating can result in a performance equivalent to that obtained with electroless nickel plating.
For more stacked wave disc springsinformation, please contact us. We will provide professional answers.