He mea nui te wahie rōkete i roto i ngā misioni tūhuratanga ātea. I roto i ngā tau, kua whakawhanakehia, kua whakamatautauria hoki ngā momo pūwero rōkete kia eke ki te mahi tino pai me te whai hua. Ko tētahi o aua pūwero ko te HTPB, arā, ko te hydroxyl-terminated polibutadiene. Nā ōna āhuatanga pai rawa atu, he wahie e whakamahia whānuitia ana i roto i ngā motuka rōkete totoka.
Ko te wahie rōkete HTPB he pūwero whakakotahi i hangaia mai i te here, te whakahāngai me te wahie paura whakarewa. Ko te here (arā, HTPB) he pūtake wahie, ā, e whakarato ana i te hanganga pumau ki te pūwero. He mea hanga mai i te pūwero mekameka roa i hangaia mā te tauhohe i te butadiene me te waipiro, ka hoatu ki a ia ngā āhuatanga hydroxyl-terminated e hiahiatia ana.
Ko tētahi o ngā āhuatanga motuhake o HTPBhe nui te pūngao kei roto. He nui te wera o te mura, arā, ka taea e ia te tuku i te nui o te pūngao ina tahuna. Nā tēnei ka pai mō te whakatere i te rōkete, nā te mea ka nui ake te pūngao e whakaputaina ana e te pūngao, ka nui ake te pana ka taea te whakatutuki.
Hei tāpiritanga, he iti ake te aro o te HTPB ki te ru me te waku, ā, he pūkaha pumau, haumaru hoki. He mea nui tōna pumau i te wā e penapena ana, e kawe ana hoki, ā, ka pā kino pea ngā ahi tūpono. Ko te iti o te aro o HTPBka taea te whakarato i te taumata haumaru mahi teitei ake i te whakataurite ki ētahi atu momo propellant.
Ko tētahi atu painga o HTPBKo te mea nui o te wahie rōkete ko tōna kaha ki te maka ki ngā āhua me ngā rahi rerekē. Ka taea te hanga ngāwari ki ngā āhua matūriki e tika ana mō ngā hoahoa me ngā whakaritenga rōkete motuhake. Mā tēnei ngāwari hanga ka taea e ngā kaihangarau te whakarite i ngā pūwero kia pai ake ai te tere tahunga me te whakatutuki i ngā āhuatanga mahi e hiahiatia ana.
Ko te tahu i te HTPB i roto i te miihini rōkete ka puta he nui te hau me te nui o te paoa. Ko te paoa e puta mai ana i ngā pūwero HTPB he hua nō te tahunga kāore i oti me te noho mai o ētahi totoka toenga. Ahakoa kāore pea te paoa i te pai mō ētahi tono, he pai pea mō te whakarato i te aroturuki tirohanga o te ara o te rōkete i te wā whakarewatanga.
Hei tāpiritanga, HTPBHe iti noa te tere tahunga o te wahie rōkete. Mā tēnei tere tahunga whakahaere ka taea te tohatoha pana kia whakahaeretia ake, kia matapaetia hoki, he mea nui tēnei mō ngā tono e hiahia ana kia tika te whakahaere me te ngāwari o te nekeneke. Ka taea e ngā miihini te hoahoa tika ake i te ara me te ara rere o te rōkete, ka whakapai ake i te angitu whānui o te misioni.
Ahakoa he maha ngā painga o te wahie rōkete HTPB, he iti anō ōna herenga. Ko tētahi herenga ko tōna iti o te kaha motuhake ki te whakataurite ki ētahi atu momo pūwero. Ko te kaha motuhake he ine i te whai huatanga o te pūwero ki te huri i te papatipu wahie ki te pana. Ahakoa he pai te kaha motuhake o te HTPB, kei reira ētahi pūwero ka taea te whakarato i ngā uara kaha motuhake teitei ake.
Wā tuku: Whiringa-ā-rangi-05-2023