German eckel springs eckel models eckel prices

eckel springs are helical springs that withstand compressive forces. The cross-section of the material used is mostly circular, but rectangular sections and multi-strand steel wires are also used. The springs generally have uniform pitch. Shapes of compression springs include: cylindrical, conical, convex, concave, and a small number of non-circular shapes. There is a certain gap between the coils of the compression spring. When subjected to external loads, the spring contracts and deforms, storing strain energy. Compression springs provide resistance to external compressive loads. Compression springs are generally wound with uniform pitch from wire of a fixed diameter. Compression springs use multiple open coils to provide resistance to external compressive loads (such as gravity pressing down on wheels, or body weight pressing on a mattress). That is, they push back to resist external pressure. Compression springs are generally wound with uniform pitch from wire of a fixed diameter. In addition, there are conical compression springs, or springs combining conical and straight sections. Depending on the application area, compression springs can be used to resist pressure and/or store energy. Round wire is the most commonly used for compression springs, but compression springs are also manufactured from square, rectangular, and special-shaped wires.

eckel spring surface treatment

1) Blackening: This surface treatment provides a black surface; blackening is primarily for aesthetic improvement rather than corrosion resistance. 2) Chrome plating: Chrome plating is mainly a treatment method for carbon steel products, primarily to increase corrosion resistance. 3) Oiling: Oiling is the standard treatment method for carbon steel springs, aimed at preventing rust during transportation and storage. 4) Passivation: Passivation is a cleaning method for stainless steel materials. 5) Phosphate coating: Phosphating offers better corrosion resistance than blackening. 6) Ultrasonic cleaning: This is the standard surface treatment method for stainless steel materials. 7) Vibratory deburring: To eliminate sharp edges on the product.

eckel spring materials

Disc springs are mostly manufactured using cold-rolled or hot-rolled strip steel, plate steel, 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 dictate that after heat treatment, they should possess high ultimate strength, yield limit, elastic limit, and fatigue limit, while also requiring high impact toughness, plasticity, and a high yield-to-tensile strength ratio. To meet these performance criteria, high-quality cold-rolled or hot-rolled steel strips or plates are widely used domestically and internationally. For disc springs with a thickness greater than 6 mm, forged blanks are used. The steel grades are mainly medium-carbon low-alloy spring steels (silicon-manganese or chromium-vanadium spring steels) and high-quality carbon spring steels. 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.

eckel spring features

Suspensions using torsion bar springs have lighter mass, simpler structures, and do not require lubrication. By adjusting the installation angle of the fixed end of the torsion bar spring, automatic adjustment of vehicle body height is easily achieved. Torsion bar springs store a large amount of elastic energy per unit volume and have low mass. Compared to helical springs, torsion bar springs have a compact structure and are easy to arrange. Torsion bar springs are widely used in off-road vehicles, light passenger cars, and trucks. Torsion bar springs can be classified by their cross-sectional shape into circular, tubular, and leaf types. Circular solid torsion bars have a simple structure and are the most commonly used. To assemble the torsion bar, both ends are machined into splines, hexagonal, square, etc. Since the spline head dimensions are relatively small, spline connections are mostly used. Generally, the major diameter of the spline is 1.2 to 1.3 times the working diameter of the torsion bar, and the spline length is approximately 1.4 times the major diameter of the spline. As long as the crushing stress on the spline teeth is within permissible limits, the spline teeth should not be selected to be excessively long. Torsion bar springs generally use involute splines according to GB3478. The JSB2705 standard recommends a standard pressure angle of 45° for splines, with modules of 1mm and 0.75mm. To facilitate the assembly of torsion bar springs, some designs feature unequal diameters for the splines at both ends, or a blind tooth is machined onto the spline teeth at both ends.

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