Abstract
Falling hammer semidynamic calibration device is a kind of pressure generator which can produce analogy semisinusoidal pressure pulse simulating pressure of gun chamber and it is used as high pressure dynamic calibration for pressure sensor and plastic measuring device. Its key technology is the sealing property of pressure generator. A sealing part of new type of falling hammer dynamic pressure calibrator is analyzed; lead and measuring pressure oil (a kind of mixed oil) are used as sealing medium in crack sealing, and a special topic research and experiment is done under the pressure from 200 MPa to 500 MPa, the result is analyzed and discussed. The conclusion is drawn that the sealing property of lead under high pressure is better than that of measuring pressure oil and the type of lead ring filling seals is better than the measuring pressure oil seals.
| Original language | English |
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| Pages (from-to) | 105-108 |
| Number of pages | 4 |
| Journal | Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology |
| Volume | 24 |
| Issue number | 2 |
| State | Published - 1 Jan 2000 |