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luzhf11(½ð±Ò+5, ·ÒëEPI+1): лл£¡ºÜºÃ 2011-05-31 15:39:53
Currently, the market of airbag inflators as automobile safety devices is still
expanding and the key technology in airbag inflation depends on the
performance of a gas generant inside the inflator. µ±Ç°£¬×÷ΪÆû³µ°²È«×°Öõİ²È«ÆøÄÒÔöѹ±ÃµÄÊг¡ÈÔÔÚÀ©´ó£¬°²È«ÆøÄÒ³äÆøÖеĹؼü¼¼ÊõÈ¡¾öÓÚ³äÆø±ÃÖÐÆøÌå·¢Éú¼ÁµÄÐÔÄÜ¡£The gas generant has been
developed for modifying inflator performance for airbag deployment in
automobiles, usually such a target would be higher gas mol per weight of gas
generant, lower gas temperature, and more filterable slug formation of residue
inside the inflator.Ñз¢ÆøÌå·¢Éú¼ÁÊÇΪÁ˸Ľø³äÆø±ÃµÄÐÔÄÜÒÔʹ°²È«ÆøÄÒÔÚÆû³µÄÚ¸üºÃÕ¹¿ª£¬ ͨ³£ÕâÑùµÄÄ¿±êÐèÒª³äÆø±ÃÖÐÓнϸߵĵ¥Î»ÖÊÁ¿ÆøÌåĦ¶ûÊý¡¢½ÏµÍµÄÆøÌåζȺÍÐγɵIJÐÁôËé¿éÂ˹ýÐÔ¸üºÃ¡£One representative composition of only fuel and oxidizer as
the gas generant, which satisfies the target performance, was selected and
studied in order to prevent the reaction mechanism from burning the inflator in
the airbag system. Ò»¸ö´ú±íÐÔµÄÆøÌå·¢Éú¼ÁÅä·½ÊÇÖ»ÓÐȼÁϺÍÑõ»¯¼Á£¬ÄÜÂú×ãÄ¿±êÐÔÄÜÒªÇó£¬Ñ¡ÔñÕâÖÖÅä·½½øÐÐÑо¿ÒÔ·ÀÖ¹ÉÕ»Ù°²È«ÆøÄÒϵͳÄÚµÄ³äÆø±ÃµÄ·´Ó¦·¢Éú¡£For a basic study of recent typical gas generants, an initial
reaction model with input data was constructed from many experimental data,
including the burn rate, burn temperature, SEM image of residue, high-speed
video camera image of gas generant burning, and high-pressure differential thermal analysis (DTA).ΪÁ˶ԽøÀ´µäÐÍµÄÆøÌå·¢Éú¼Á½øÐлù´¡Ñо¿£¬ÎÒÃÇͨ¹ýÐí¶àÊÔÑé×ÊÁϽ¨Á¢ÁËÒ»¸ö°üº¬ÊäÈë×ÊÁϵijõʼģÐÍ£¬ÕâЩÊÔÑé×ÊÁϰüÀ¨È¼ÉÕÂÊ¡¢È¼ÉÕζȡ¢²ÐÁôÎïµÄɨÃèµç¾µÍ¼Ïñ¡¢ÆøÌå·¢Éú¼ÁȼÉյĸßËÙÏà»úÕÕÆ¬ºÍ¸ßѹʾ²îÈÈ·ÖÎö×ÊÁÏ¡£ |
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