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Pranvera Terminologjia


Compression Springs

  Në Super Springs, Ne jemi duke bërë burimet compression me gamë të teli 0.2 mm për 4.5 mm. Springs Compression mund të jetë cilindrike, konik, Fuçi apo kombinim i these.We kanë teknologjinë më të fundit CNC Pranvera coiling Machines për prodhimin e shpejtë se edhe me … Vazhdo leximin


Die Springs janë përdorur në Vdes përdorur në industri fletë metalike, derdhur plastike vdes, Makinat dhe disa aplikacione tjera industriale.   Die Springs janë përdorur, ku ngarkesa e lartë është e nevojshme që edhe me lartësi më pak të ngurta.   Ne kemi Die … Vazhdo leximin

Form SpringSprings formë

Super Springs është duke bërë burimet formë me shumë dizajne si kërkesë për konsumatorët. Ne kemi Pranvera makinat CNC formimin dhe Wire makina CNC Bending të kujdeset për të gjitha planet dhe ka aftësinë për të prodhuar mijëra e burimeve çdo … Vazhdo leximin

torsion springRrotullim Springs

Super Springs është prodhim Springs rrotullim me gamë të teli 0.2 mm për 3.0 mm. Springs rrotullim kundërshtojnë forcë torsional dhe janë përdorur në aplikacione të ndryshme industriale. Ne kemi CNC makinë rrotullim Springs që na ndihmuar në prodhimin e kroje të cilësisë. Angles … Vazhdo leximin

Pranvera Terminologjia

Active Coils

Those coils which are free to deflect under load. For compression springs with square ends , total no. of coils minus two is a good approximation of number of active coils.


Angular relationship of ends

The relative position of the plane of the hooks or loops of extension springs to each other.



Heating of Electroplated Springs to relieve hydrogen embrittlement.



Bowing or lateral deflection of compression springs when compressed, related to slenderness ratio (L/D)


Closed Ends

Ends of compression springs where pitch of the end coils is reduced so that the end coils touch.


Closed and ground ends

As with closed ends, except that the end is ground to provide a flat plane.


Closed Length

See Solid height.


Closed Wounds

Coils with adjacent coils touching.


Coils per inch

See Pitch



Motion of spring ends or arms under the application or removal of an external load.


Elastic Limit

Maximum stress to which a material may be subjected without permanent set.


Endurance Limit

Maximum stress at which any given material may operate indefinitely without failiure for a given minimum stress.


Free Angle

Angle between the arms of a torsion spring when the spring is not loaded.


Free Length

The overlall length of a spring in the unloaded position.



The lowest inherent rate of free vibration of a spring itself(usually in cycles per second) with ends restrained.



See Rate (R)

Heat Setting

Fixturing a spring at elevated temperature to minimize loss of load at operating temperature.



The spiral form ( open or closed) of compression, extension, and torsion springs.


Hooke’s Law

Load is proportional to displacement.



Open Loops or ends of extension springs.


Hot pressing.

See Heat setting.

Hydrogen Embrittlement

Hydrogen absorbed in electroplating or pickling of carbon steels tending to make the spring material brittle and susceptible to cracking and failure particularly under sustained loads.



The mechanical energy loss that always occurs under cyclical loading and unloading of a spring, proportional to the area between the loading and unloading load deflection curves within the elastic range of a spring.


Initial Tension

The force that keeps the coils of an extension springs closed and which must be overcome before the coils start to open



The force applied to a spring that causes a deflection.



Coil like wire shapes at the ends of extension springs that provide for attachment and force application.


Mean coil diameter

Outside spring diameter minus one wire diameter.


Modulus in shear or torsion


Coefficient of stiffness used for extension and compression springs.


Modulus in tension or bending


Coefficient of stiffness used for torsion and flat springs (Young’s Modulus)



See Torque

Open Ends, Not ground


End of a compression springs with a constant pitch for each coil.


Open and Ground ends


Open ends not ground followed by an end grinding operation.



Acid treatment of stainless steel to remove contaminants and improve corrosion resistance.


Permanent Set

A material that is deflected so far that its elastic properties have been exceeded and it does not return to its original condition upon release of load is said to have taken a  “permanent set”



The distance from center to center of the wire in adjacent active coils (recommended practice is to specify number of active coils rather than pitch)



See remove set.



Change in load per unit deflection, generally given in Kg/mm.


Remove set

Full compression of a spring to solid state by manufacturer when needed to prevent length loss in operation.


Residual stress

Stresses induced by set removal, shot peening, cold working, forming or other means.


These stresses may or may not be beneficial, depending on the application.



Length loss in operation due to high stresses and thereby improve fatigue life.


Shot Peening

A cold working process in which the material surface is peened to induce compressive stresses and thereby improve fatigue life.


Slenderness Ratio

Ratio of spring length to mean coil diameter.


Solid height

Height of a compression spring when under sufficient load to bring  all coils into contact with adjacent coils.


Spring Index

Ratio of the mean coil diameter to wire diameter.
Squared and ground Ends


See Closed and Ground Ends.


Squared Ends

See Closed Ends.


Stress Range

The difference in operating stresses at minimum and maximum loads.


Stress relieve

To subject springs to low temperature heat treatment so as to relieve residual stresses.


Squareness of ends.


Angular deviation between the axis of a compression springs and a normal to the plane of the ends.


Squareness under load

Same as in squareness of ends, except with the spring under load.



A twisting action in torsion springs which tends to produce rotation, equal to the load multiplied by the distance(or moment arm) from the load to the axis of the spring body.


Total number of coils

Number of active coils plus the coils forming the ends.


Trapped Stress

See residual stress.