1. Cov ntaub ntawv sim thiab cov txheej txheem
1.1 Cov khoom siv sib xyaw thiab cov khoom siv hauv paus siv rau kev sim yog ASMESB265 Gr.2 thiab ASME SA516 Gr.70, nrog rau cov lus qhia tshwj xeeb thiab qhov ntau ntawm 5 hli × 4 450 hli × 6 820 hli, 4 daim raws li; 31 mm x 4 350 mm x 6 720 mm, 4 pieces.
1.2 Test Method
1.2.1 Explosion welding test
Using a combination of high and low explosive velocity explosives and segmented explosive composite, with the same static process parameters (charge height, support distance, flash margin, energy gathering diameter, etc.), segmented explosive distribution is shown in Figure 1. Explosive detonation velocity Vd1>Vd2>Vd3 Daim duab 1 Schematic daim duab ntawm segmented them
1.2.2 Xaiv qhov tawg nrawm
Raws li cov kev xav hauv paus ntsiab lus ntawm cov txheej txheem tawg tsis tau [14], ib qho kev sim tau ua los ntawm kev sib xyaw ua ke ntawm qhov siab thiab qis tawg nrawm nrawm. Cov khoom tawg tau siv yog qhov qis qis tshaj tawm nthuav dav ammonium nitrate explosive, formulated li ammonium nitrate explosive + kev lag luam ntsev, thiab txoj kev ntsuas rau detonation tshaj tawm yog txoj kev sojntsuam ib-theem. Xaiv plaub qhov sib xyaw ua ke ntawm qhov siab thiab qis qis, raws li qhia hauv Table 1.
Raws li kev faib tawm ncaj qha ntawm ib qho kev tawg thiab cov segmented faib ntawm ntau yam khoom tawg, ua ke nrog cov qauv rau kev tawg tawg siab, qhov ntev ntawm qhov detonation point yog coj raws li kab rov tav axis, thiab lub siab detonation yog coj raws li txoj kab ntsug, raws li qhia hauv daim duab 2.
Daim duab 2 qhia txog txoj cai kev faib tawm ntawm kev tawg siab rau ib qho kev tawg sib npaug. Tom qab ruaj khov detonation, lub detonation siab stabilizes. Nrog rau qhov nce ntawm lub sij hawm, lub siab impulse nce linearly. Qhov ntev thiab loj dua qhov ntev thiab thaj tsam ntawm cov khoom tawg, qhov ntau dua qhov nce hauv detonation siab impulse, ua rau muaj qhov sib txawv ntau dua ntawm qhov sib xws ntawm qhov sib txuas vuam zoo. Qhov no qhia tau hais tias ib qho kev sib kis ib leeg muaj qee qhov kev txwv ntawm lub phaj dav ntawm cov hlau tawg, tshwj xeeb tshaj yog rau ob lub hlau tsis sib xws (xws li titanium thiab hlau), uas ua rau muaj kev hem thawj rau lawv cov khoom tawg zoo.
Kev sib txuas ntawm ib qho kev sib txuas ntawm ib qho tawg ntho nyob rau hauv welding explosive yog qhia nyob rau hauv daim duab 3. Thaum pib ntawm detonation, lub pem hauv ntej nthwv dej sib tsoo nyob rau hauv ib tug yuav luag ib ncig, ua rau cov yas deformation ntawm ob hlau. Thaum pib kev sib tsoo, lub thermal zog tsim los ntawm kev tawg tawg thiab lub thermal zog dav hlau tsim los ntawm deformation ntawm ob lub hlau yog qhov tsis muaj zog, uas tsis txaus ua rau muaj kev puas tsuaj rau kev sib txuas lus. Tom qab txoj kab uas hla ntawm lub voj voog ua tiav, qhov tawg tawg siab impulse maj mam nce; Ib txhij, qhov tawg ntawm cov khoom tawg ua rau lub zog thermal thiab lub zog thermal ntawm kev sib tsoo deformation ua rau lub dav hlau kub kub; Tsis tas li ntawd, lub detonation sparse nthwv dej tsim los ntawm ob sab ntev thiab deformation cuam tshuam ntawm cov phaj sib xyaw ua ke los ntawm kev tawg ua ke cuam tshuam rau lub dav hlau kub kub uas yuav tsum tau txau tawm sab nraud rau hauv daim ntawv turbulent nyob rau hauv daim ntawv cog lus interface txheej, ua rau lub siab. -Tsub dav hlau txau thiab tawm tsis zoo, ua rau tsis sib xws ntawm kev sib koom ua ke deformation ntawm kev sib txuas sib txuas, kev sib koom ua ke tsis sib xws ntawm tag nrho cov phaj, thiab cov khoom tsis ruaj khov.
