How To Calculate The Preload Of Nitrogen Gas Spring
Nitrogen gas springs: Nitrogen gas springs for molds (referred to as die nitrogen springs or nitrogen springs or nitrogen cylinders or nitrogen cylinders) are a new type of high-pressure nitrogen as the working medium Elastic components, which are small in size, large in elasticity, long in stroke, stable in operation, precise in manufacturing, long in service life (one million times), flat in elastic curve, and do not require preloading, etc. It has metal springs, rubber and air cushions, etc. It is difficult to complete the work of conventional elastic components, simplifies the design and manufacture of the mold, facilitates the installation and adjustment of the mold, prolongs the service life of the mold, and ensures the stability of the product quality. It is very convenient to realize constant pressure and delay action in the system, and it is the most ideal elastic part of a new generation with flexible performance.
Sanyi Precision Gas Spring
Selection of elastic force: According to the calculated punching force, select the number, model and elastic force of each nitrogen gas spring. Generally speaking, the elastic force of the nitrogen spring should be selected according to the calculated punching force, plus an increase of 15%-20%, which is more in line with the actual situation. Because first, when the mold wears, there will be gap changes. Changes in process parameters such as cutting edge bluntness, and inconsistency between the thickness of the die and the deformation resistance of the die plate will cause changes in the deformation resistance of the workpiece, so there should be room for the deformation resistance in the design. Second, when the nitrogen spring is inflated, the high-pressure gas will inevitably have a throttling loss, which will make the elastic force float down. Third, the life of the nitrogen spring is very long. After a period of use, the high-pressure nitrogen gas will leak to a certain extent, causing the spring pressure to drop slightly.
How to calculate the preload of the nitrogen spring?
The so-called force value of the nitrogen spring is actually the reaction force (that is, how much force is used to press the piston rod down, and the force of the piston rod to return to the force applicator), when the piston rod is first pressed down, it is Some pre-pressure is required. In principle, the pre-pressure needs to be greater than the reaction force value of the nitrogen spring, generally within 20%.
We provide Clamp Bushing products, if you are interested in Clamp Bushing, please contact us for more information.
Sanyi Precision Gas Spring
Selection of elastic force: According to the calculated punching force, select the number, model and elastic force of each nitrogen gas spring. Generally speaking, the elastic force of the nitrogen spring should be selected according to the calculated punching force, plus an increase of 15%-20%, which is more in line with the actual situation. Because first, when the mold wears, there will be gap changes. Changes in process parameters such as cutting edge bluntness, and inconsistency between the thickness of the die and the deformation resistance of the die plate will cause changes in the deformation resistance of the workpiece, so there should be room for the deformation resistance in the design. Second, when the nitrogen spring is inflated, the high-pressure gas will inevitably have a throttling loss, which will make the elastic force float down. Third, the life of the nitrogen spring is very long. After a period of use, the high-pressure nitrogen gas will leak to a certain extent, causing the spring pressure to drop slightly.
How to calculate the preload of the nitrogen spring?
The so-called force value of the nitrogen spring is actually the reaction force (that is, how much force is used to press the piston rod down, and the force of the piston rod to return to the force applicator), when the piston rod is first pressed down, it is Some pre-pressure is required. In principle, the pre-pressure needs to be greater than the reaction force value of the nitrogen spring, generally within 20%.
We provide Clamp Bushing products, if you are interested in Clamp Bushing, please contact us for more information.
