Nitrogen spring before development

Nitrogen spring is an elastic function member, it will determine the high-pressure nitrogen gas sealed within the container, external compressed nitrogen through the mast, when the external force is removed by high-pressure nitrogen expander to obtain a certain biasing force, such components said gas called nitrogen cylinder or spring, or nitrogen cylinder, said urging means, referred to as nitrogen gas springs ( "nitrogen cylinder", "GasSpring").

Current conventional elastic element is a spring, rubber and air, these elastic elements obtained in the industrial field has been widely used to solve a variety of flexible storage needs, it plays its due role.

In the mold industry has been extensive use of the elastic element. Over the years, mold and die manufacturing technology has been greatly developed and improved industrial products mold growing demand, mold toward sophisticated, complex, high efficiency, long life direction rapidly, and the original conventional elastic elements there are some shortcomings, can not meet the needs of the situation, not the ideal solution for stamping process requirements often affect the quality of stamping, mold design becomes more complex, the impact on the press die replacement time; while conventional elastic elements occupy too much space in the mold, mold manufacturing cost increases. Such as a spring, rubber preload all need exists to meet the design requirements of the biasing force, and the biasing force thereof is significantly increased with increased stroke, the pressure is not constant, such resilient properties, may result in parts not forming, on the drawing bead is very desirable. For drawing complex molded parts, this conflict is especially prominent, and sometimes had to be used to increase process solution to such problems. Another example springs, rubber initial force is not large, this is the starting power requirements relatively large bending, flanging and other processes, is not ideal. Resulting outcome is inconsistent quality of stamping, die time-consuming adjustments. For intensive punch punching process, such as using a spring or rubber discharge, often encounter mold unloading place is not enough space spring or rubber, and therefore need to increase the mold space to solve such problems. Many such examples can be cited. Designers can use the current stamping cushion to partially offset these deficiencies. However, when using the press cushion, mold design, adjustment, not very easy to use; the pressure fluctuations and pipe throttling losses, air power provided is not very accurate; it occupies a larger space; with special needs compressed air station Moreover, not all of the presses are equipped with air cushion. When using air, mold design are subject to restrictions on air ejector position, mold installation is not easy. To this end, efforts to develop a new type of flexible features to replace the conventional elastic element, the new elastic element having a more perfect performance, can replace conventional elastic element, the elastic element is difficult to complete routine work done with conventional elastic elements do not have the performance, can replace the conventional elastic element, the elastic element is difficult to complete routine work done with conventional elastic elements do not have the performance, nitrogen spring as new flexible features will come into being. It can make up the deficiencies, simplifying mold design, manufacturing, convenient mold adjustment; it can be used as stand-alone components, install and use in the mold can also be designed into a nitrogen gas spring system, as part of participation in the work of the mold, it is easy in the system achieve constant pressure and delay action bombs, it is capable of having a flexible elastic member. Nitrogen gas springs can be widely applied not only in the mold industry, can also be applied to other industries, such as automotive, electronics, instrumentation and other industries. Seen in this light, the use of a wide range of nitrogen spring, it appears to meet the requirements of the times to meet the needs of industrial development. Obviously, the development of this technology, it is now in the ascendant.