The self-locking gas spring can operate like a free-type gas spring; when the needle valve is released, the self-locking gas spring can self-lock in the current position, and the self-locking force is often large, that is, it can support a relatively large force. Therefore, while maintaining the function of the free-type gas spring, the self-locking gas spring can also be locked at any position of the stroke, and can also carry a large load after being locked! Self-locking gas springs are divided into elastic self-locking and rigid self-locking according to the different self-locking forms. Rigid self-locking is divided into rigid self-locking in the press-in direction, rigid self-locking in the stretching direction, and rigid self-locking in the pressing-in stretching direction. The so-called elastic self-locking means that when the gas spring opens the needle valve, there is a buffering effect when the needle valve is released for self-locking. Rigid self-locking has little cushioning.
Since the self-locking gas spring has the functions of supporting and adjusting height at the same time, and the operation is very flexible, the structure is relatively simple. Therefore, it has been widely used in medical equipment, beauty chairs, furniture, aviation, luxury buses and other fields!
With the development of spring application technology, higher requirements have been put on spring materials. Continuous casting production technology has been widely adopted in spring steel production. Continuous casting can reduce the segregation of steel, reduce secondary oxidation, improve surface decarburization, and make the structure and performance stable and uniform through techniques such as electromagnetic stirring and low temperature casting. The use of a split-type continuous rolling mill can improve the dimensional accuracy and surface quality, and at the same time, it can make the microstructure of the steel uniform along the length.
In order to ensure the surface quality of products during rolling, online automatic detection and control are adopted. In order to adapt to the production of variable section spring flat steel, a new process of austenite rolling and forming has been developed. Compressed gas springs first heat the steel to the austenite zone and then rapidly cool to the metastable austenite zone for plastic processing and quenching treatment. This process allows steel to increase strength without reducing plasticity. In addition, the performance of spring steel is improved by online heat treatment and surface hardening treatment after rolling.
Company Name: Changzhou Double Spring Machinery Co., Ltd.
Contact Person: Double Spring
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Address:5#, YanZheng Middle Road, Hutang Town, Wujin District