German alca springs alca models alca prices

alca springs are conical disc-shaped and can be used individually or in series or parallel combinations. They withstand static or dynamic axial loads at the upper inner edge and lower outer edge, deforming under compression until flattened to store energy as a live load. When necessary, they automatically convert into additional compressive load required for sealing, reducing the continuous tightening requirements for gaskets and packing. Disc springs are special springs that are conical in the axial direction and bear loads. After deformation under load, they store potential energy. When bolts loosen, the disc spring releases part of the potential energy to maintain pressure between flange connections to meet sealing requirements. The stress distribution of disc springs decreases uniformly from inside to outside, achieving high compensation force with low travel.

alca spring features

1) High stiffness, strong buffering and vibration absorption capability, capable of withstanding large loads with small deformation, suitable for applications with limited axial space. 2) Variable stiffness characteristics, these springs have a wide range of nonlinear properties. 3) Using the same disc springs in different combination methods can significantly change spring characteristics. Combination methods such as face-to-face, stacked, or composite with different thicknesses and numbers of discs can be adopted. 4) When stacked, for the same deformation, the more springs there are, the greater the load. 5) Short travel, heavy load, small space requirement, convenient combination use, easy maintenance and replacement, economical, high safety, long service life.

alca spring materials

Disc springs are mostly manufactured from cold-rolled or hot-rolled strip steel, plates, or forged blanks (forging ratio not less than 3). Common materials include spring steels such as 60S2MA and 50CVA. For thicknesses less than 1.1, high-carbon steel can also be used. Performance requirements for disc spring materials include high ultimate strength, yield limit, elastic limit, and fatigue limit after heat treatment, along with high impact toughness, plasticity, and a high yield-to-tensile strength ratio. To meet these performance requirements, high-quality cold-rolled or hot-rolled steel strips or plates are commonly used domestically and internationally. For disc springs with thickness greater than 6 mm, forged blanks are used, primarily consisting of medium-carbon low-alloy spring steel (silicon-manganese or chromium-vanadium spring steel) and high-quality carbon spring steel. Due to the high silicon-manganese content and low chromium-vanadium content in China, disc springs mainly use 60Si2MnA. Comparing the two, 50CrVA has better hardenability, temper stability, and impact toughness than 60Si2MnA, but 50CrVA is more expensive and suitable for applications with high fatigue requirements.

alca spring classification

1) Standard disc springs, trapezoidal section disc springs, conical trapezoidal section disc springs: Simple shape and structure, widely applied. Can be used individually, in face-to-face, stacked combinations, or composite groups to withstand static or variable loads, serving as powerful buffering and vibration-damping springs in heavy machinery, aircraft, artillery, and other weapons. 2) Diaphragm springs: Mainly used in automotive clutches, functioning through separation fingers and disc spring components. 3) Wave washers: Widely used in mechanical seals, further developable into spiral wave springs. 4) Slotted disc springs: Typically used in clutches, such as those in lathes, automobiles, and tractors. 5) Circular plate disc springs: Circular plate cross-section, deforming into a truncated cone shape under load. Simple structure, high stiffness, used for special requirement applications. 6) Spiral disc springs: Possess dual characteristics of disc springs and spiral springs, allowing for different stiffness requirements. 7) Wave cylindrical springs (wave springs): Formed by overlapping wave washers into a cylindrical shape, allowing for larger deformation.

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