| 摘要 |
<p>A valve core is provided to reduce the amount of gas leakage using rubber and glass metal sealing members to close a core mounting hole and to increase sealing degree of metal glass member by adopting titanium alloy having higher elastic deformation performance. A valve core(20) is adhered in a core mounting hole(11) formed on a core retaining member(10) and opens and closes the core mounting hole. The valve core comprises a cylindrical core body(21), a movable shaft(30), a rubber sealing member(31), and a metal glass sealing member(32). The cylindrical core body is secured inside the core mounting hole. The movable shaft moves linearly through the core body. The rubber sealing member is installed on a distal end of the movable shaft, closing the core mounting hole by being adhered to the distal end of the core body or on the inner periphery of the core mounting hole. The metal glass sealing member is installed on a distal end of the movable shaft or the core body, closing the core mounting hole by being adhered on a distal end of the other.</p> |
