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ID:36429926
大小:8.01 MB
页数:106页
时间:2019-05-10
《高安全雷管机理与应用的研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国科学技术大学博士学位论文高安全雷管机理与应用的研究姓名:马宏昊申请学位级别:博士专业:工程力学指导教师:沈兆武20080401摘要起爆可靠性的前提下有效减少铅的使用量,大大降低成本,减小环境污染。关键词:雷管,爆轰,凝聚相,冲tf÷起爆,热点,起爆药,激发装置,激发药,飞片,延期AbstraCtAbstractThede七onatoristhebasicelementofexplosivedetonation.TheprimaryexpIosiveisusedjntraditiondetonatortomakeitexploded.Thoughitisrel
2、iable,thesecurityisweakandmuchmoreaccidenLhappenedbecauseofthehighsensibilityoftheprimaryexplosjVe.AlsoCherejsseriousenvironmentpo¨u七ionduringtheproductionofthepri—maryexplosive.Electronicdetonatorisseenasthesubstituteoftheprimarydetonatorwiththeadvantagesuchasreliableignition、precis
3、edelaytime、goodsecurity,butit’stooexpensivetob11usedbroad.Thenon—primarydetonatordoeSn’tuSeprimaryandcostsless,itrepresentsthedirectionofthedetonatortechnology.Thehigh—saf色detonatorisonekindofthedetonators.Itisigni七edbythe丑yeroftheexcitatjondevice.Thehigh—saf色detonatorisreliale、sef色a
4、ndprecise,Thisarticleresearchingonthehigh—saf色detonatorconcludesthesecontents:theexplodingprinciple、selectionoftheexcitationexpIosiVe、theVeIocifIyofthenyermadebytheexcitationdeVice、thetechnologypathandtheimproVementofthedelaymethod.Themaincontentofthisthesisis:(1)Tbdesigntheexcitatio
5、ndeVicebasingonthehotspottheory’includingthecon一丘gurationandselectionoftheexcita£ionexplosiVe。TheexcitationdeViceconsistsofthehat、excitationexpIosiveandthedel£lyelement.TheexplosiVeandtheel—ementareplacedinthehatandthedimensionofhatisdesignedtobeassembledinthedetonatorshell.Theexcita
6、tionexplosiVeiscomposedofordinaryexplosiVe.PETNandRDXarecomparedonthesuccessfulexplosjonpercentageandthepre-cisionofthedelaytime.Theresultsh。wsthat,granulatedRDXandPETNcouldalsobeusedastheexcitation.butPETNisbettertobeIlsedininstan七aneousdetonatorandgranulatedRDXperformedbeCterindela
7、L‘ydetonaeor.(2)7rbmensuratethedetonationvelocity.ItisobserVedthattheVelocitybecamelargerrapidlyaswellthedistanceisfarer.Itmeansthatbecausethelengthoftheexcitationisshorter,the11nsteadydetonationhappenedintheexplosiVe,orm£拶bedenagratioll.Whilecalculatingbytheflyermodel,theparameterof
8、thedetoIlati
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