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 Compression Spring Constant
The constant force exerted on a spring to compress it to a given deflection. This constant is used to find the force required to compress a spring by simply multiplying it by the desired deflection of the spring.

K = (d4  G) / (8  Dm3  N) Kg/mm, where,
K=Spring Constant
d=Wire diameter
Dm=Average coil diameter (outer diameter - wire diameter)
N=Number of active

 Compression Springs
Compression springs are produced in various shapes and raw materials in accordance with client's requirements of wire of rod diameters running from 0.1mm to 17mm respectively. The wide range of specifications includes springs with regular or irregular pitch or con-shaped types.

A parameter of a specific group of materials like copper beryllium and bronze which are used principally in the electronics industry. Sometimes springs made from these materials require a special coating

 Corrosion Protection
Process applied to springs or to the materials from which they are made, to stand up against the damaging effects of corrosion in certain environments. Examples of such treated materials are stainless steel, Elgeloy and Hastelloy. The use of materials which have undergone the corrosion protection process is essential where ordinary, non-treated materials, might fail as a result of corrosion.
Spring deflection of the spring until it reaches its working load during one operation.
 Cycling Load
The ability of a spring to withstand repeated cycling without failure.  
 Double Torsion Spring
Produced from two torsion springs connected together, giving twice the strength.
The state at which the spring no longer returns to its original uncompressed dimensions due to the permitted compression or extension loads being exceeded.
 Flat Springs
Known also by the name of leaf springs, these springs are made from strips of flat material. There are various sub-types such as: touch, catch, contact and shaped springs. They are produced from are range of  raw materials.
 Form Springs
Springs produced to the custom specifications of the customer.
 Hot pre-setting
Pre-setting under conditions of heat. This changes characteristics of the spring and increases spring life and reliability.
 Initial Tension
The force required in order to separate the coils, one from the other.Initial tension gathers in order to firmly set the spring and train the necessary force at the work point, so enabling a much lower spring constant.
Process of compressing a spring to complete closure to move the spring into its plastic range. The purpose of this is to prevent relaxation in use.The operation might be carried out either at regular environment condition or at a warm one.
 Shot Peening
A process of cleaning the outer surface of the spring material causing a hardening of the surface whilst also improving the material's mechanical qualities. It involves the prior application of pressure onto the spring's outer surface. The process boosts and revitalizes latent material fatigue and enhances the life expectancy of the spring by at least 30%.
Used as a device to accumulate mechanical energy and as a means to soften knocks and blows. Spring=energy=power
 Spring Breaking Point
The state whereby the spring breaks following repeated cycling (see above). One of the production services provided by Nordia Springs is the designing of springs to work under continuous load without failure or, in other words, without reaching their breaking point. This is facilitated by using the process of shot peening which changes the spring's breaking point.
 Spring Load
The force exerted on the spring for a set distance of compression
 Stress Relief
Stress Relief is a process performed on springs manufactured from various raw materials, resulting in excess load
 Tension Springs
Also known as extension springs, these springs are used in applications which cause them to open or extend, as opposed to compression springs which are made to close up in use. This spring type normally involves a loop at each end of the spring and at Nordia Spring we produce diverse types of tension spring from a range of raw materials. Wire diameters from 0.1mm to 17mm
 Torsion Springs
Springs made from an elastic material that reacts against a twisting motion know as torsion. The more the spring is twisted, the more force it takes to twist it further. At Nordia Springs, torsion springs are produced in a diverse range of shapes and raw materials within a framework of wire diameters from 0.1mm to 17mm. We produce springs with various types of ends: straight, upright, pivoted ends
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