A Study On The Key Technologies Of New Type Slapper Detonator Design And Fabrication

Slapper detonator is a new type high-octane portfire, which is only sensitive to short pulse, and consequently it has strong abilities to resist the electromagnetic interference and radio-frequency interference, and it also has great reliabilities. As a result, this new detonator is used to ignite all kinds of bombs, missiles, rockets and so on. Using MEMS technologies to fabricate slapper detonator can reduce its big volume, debase its high cost, and accordingly widen its applied fields; It becomes disquisitive hotspot now. The main contents of the paper are as follows:1. The basic physical process of the detonation of slapper detonator is analyzed theoretically, the mechanism of the explosive and the velocity model of the slapper are studied;The design of exploding parameter is accomplished theoretically.2. The structural design of the slapper detonator, the material selection and fabrication of its every part has been completed; the actuality of the neutral explosive's development and its manufacture is summed up.3. The sputtering process is selected, the reasonable process flow to fabricate the foils is studied, the relationships between the rate of film aggradations and the parameters of PVD sputtering process are studied, the optimized means to remove the pastern which is used as sacrificed layer is acquired, and the perfect explosive foil is achieved finally.4. According to the explosive mechanism of the slapper detonator, its mathematic model is founded, the parameters are calculated in theory and the energy is matched reasonably, the proper components are selected, the specimen of exploding system is finished and has already been used to fire the exploding foils elementarily.Results of the research and experiments in this paper are beneficial to deign and fabrication of MEMS slapper detonator. The micro machining technology can also be used for other MEMS products.