Mehato e 3 e bonolo ea ho sebelisa HTPB (Hydroxyl-terminated polybutadiene) ho li-propellant tsa sefofane
Lintlha tsa Bohlokoa
- Khetha sehlopha se nepahetseng sa HTPB bakeng sa projeke ea hau ea lifofane ka ho hlahloba leqephe la data la tekheniki.
- Boloka HTPB sebakeng se pholileng, se omileng 'me u netefatse hore lijana li koetsoe ho thibela mongobo.
- Sebelisa Resonant Acoustic Mixing bakeng sa motsoako o sireletsehileng le o phethahetseng oa metsoako ea propellant.
Mohato oa 1: Ho lokisa HTPB (Hydroxyl-terminated polybutadiene) sebakeng sa lifofane
Ho Khetha Kereiti e Loketseng ea HTTPB
O tlameha ho kgetha sehlopha se nepahetseng sa HTPB (Hydroxyl-terminated polybutadiene) mererong ya sefofane. Sehlopha se seng le se seng se na le thepa e fapaneng. Dikarolo tse ding di na le boima bo hodimo ba dimolek'hule. Tse ding di na le dihlopha tse arabelang haholoanyane tsa hydroxyl. Mohlala, sehlopha sa R-45M se sebetsa hantle bakeng sa di-propellant tse ngata tsa sefofane. O ka boela wa fumana dikarolo tse ikgethileng ho tswa ho Theorem Chem. Dikgetho tsena di o dumella ho bapisa thepa le ditlhoko tsa hao tse ikgethang. Kamehla hlahloba leqephe la data la tekheniki pele o etsa qeto.
Mekhoa e Metle ea ho Tšoara le ho Boloka
O hloka ho sebetsana le ho boloka HTPB (Hydroxyl-terminated polybutadiene) libakeng tsa lifofane ka hloko. Latela mekhoa ena e metle:
- Boloka HTPB sebakeng se pholileng, se omileng, le se nang le moea o kenang hantle.
- Boloka lijana li koetsoe hantle ho thibela mongobo ho kena.
- Sebelisa mabitso a nepahetseng bakeng sa meropa eohle ea polokelo.
- Beha mehato ea nakoana ea ho thibela metsi, joalo ka lithapo, haufi le libaka tsa polokelo ho laola ho tšoloha ha metsi.
- Etsa bonnete ba hore merero ea karabelo ea maemo a tšohanyetso e se e loketse haeba ho ka lutla metsi.
Ela Hloko: O tlameha ho latela melao yohle ya mmuso le ya mmuso. Melao ena e thusa ho thibela tshilafatso ya mobu le ho sireletsa tikoloho. Mekgwa e tloaelehileng ya tshebetso e boetse e boloka bohle ba bolokehile nakong ya dipalangwang le polokelo.
Tekanyo e Nepahetseng bakeng sa Likopo tsa Lifofane
O lokela ho lekanya HTPB ka nepo. Sebelisa likala tse leka-lekaneng le lisebelisoa tsa ho lekanya. Esita le liphoso tse nyane li ka ama ts'ebetso ea ho qetela ea propellant. Hlahloba litekanyo tsa hau habeli pele u li kopanya. Tekanyo e nepahetseng e netefatsa hore propellant ea hau e tla fihlela maemo a thata a sefofane.
Mohato oa 2: Ho Kopanya le ho Theha HTPB (Hydroxyl-terminated polybutadiene) ho Li-propellant tsa lifofane
Ho Khetha Lisebelisoa tsa Propellant tse Tšoanang
O hloka ho kgetha metswako e sebetsang hantle le HTPB (Hydroxyl-terminated polybutadiene) di-propellant tsa sefofane. Dikarolo tse ka sehloohong di kenyeletsa:
- HTPB e le sehokelo
- Li-Diisocyanate tse kang isophorone diisocyanate (IPDI) kapa toluene diisocyanate (TDI) bakeng sa ho phekola
- Ammonium perchlorate (AP) e le oxidizer
- Phofo ea aluminium e le mafura a tšepe
- Li-catalyst tse laolang bophelo ba pitsa
- Li-stabilizer tse kang butylated hydroxytoluene (BHT) ho thibela oxidation
Motsoako o mong le o mong o lokela ho lumellana ho netefatsa hore propellant e tsitsitse ebile e sebetsa hantle.
Ho Fumana Litekanyetso tse Nepahetseng tsa ho Kopanya
O lokela ho lekanya motsoako o mong le o mong ka hloko. Karolelano e lekanang ea isocyanate-to-hydroxyl (NCO/OH) e lokela ho ba hoo e ka bang 1.05 ho isa ho 1.10. Karolelano ena e thusa motsoako ho fola hantle 'me e fa propellant matla a eona. Hangata li-catalyst li fana ka bophelo ba pitsa ea metsotso e 30 ho isa ho e 60, kahoo o hloka ho sebetsa ka katleho.
Mekhoa le Lisebelisoa tsa ho Kopanya
O batla motsoako o ts'oanang bakeng sa liphetho tse ntle ka ho fetisisa. Ho kopanya Resonant Acoustic (RAM) ke khetho e ntle bakeng sa HTPB (Hydroxyl-terminated polybutadiene) ka har'a li-propellant tsa sefofane. RAM e sebelisa matla a molumo ho kopanya thepa ntle le mahare. Mokhoa ona o sebetsa hantle bakeng sa metsoako e teteaneng le libopeho tse fapaneng tsa setshelo. E boetse e ntlafatsa polokeho mme e u fa motsoako o lekanang ho feta metsoako ea setso.
| Mokhoa oa ho Kopanya | Melemo |
|---|---|
| RAM | E bolokehile, e phethahetse, e sebetsa ka thepa e nang le mahlakore a mangata, ha ho hlokahale mahare |
Mehato ea Polokeho Nakong ea ho Kopanya
Kamehla latela melao ea polokeho ha u kopanya. Apara liaparo tse sireletsang tse kang liatlana le likhalase tsa mahlo. Sebetsa sebakeng se nang le moea o kenang hantle. Boloka lisebelisoa tsa tšohanyetso haufi. Le ka mohla u se ke ua potlakisa ts'ebetso. Ho kopanya ka hloko ho u boloka u sireletsehile 'me ho netefatsa hore propellant e sebetsa kamoo ho lebelletsoeng.
Mohato oa 3: Ho Folisa le ho Qetela HTPB (Hydroxyl-terminated polybutadiene) ho Li-propellant tsa lifofane
Mekhoa le Maemo a Phekolo
O hloka ho lokisa motsoako oa propellant ho etsa thepa e matla le e tsitsitseng. Ts'ebetso ea ho lokisa e hokahanya limolek'hule tsa HTPB hammoho, e leng se etsang marang-rang a tiileng. Ho lokisa boholo ba ho etsa ho etsahala mochesong oa kamore, pakeng tsa 20°C le 35°C. Ts'ebetso e ka nka matsatsi a supileng. Ka linako tse ling, o ka sebelisa mocheso o phahameng, joalo ka 85°C ho isa ho 90°C, ka lihora tse 'maloa ho potlakisa karabelo. Tafole e ka tlase e bontša likarolo tse tloaelehileng le maemo a tsona a ho lokisa:
| Karolo | Peresente ka Boima | Maemo a Phekolo |
|---|---|---|
| AP (ammonium perchlorate) | 69 ho isa ho 77% | Mocheso oa kamore (20–35°C) |
| Phofo ea Al (aluminium) | 10 ho isa ho 18% | Nako ea ho fola matsatsing a 7 |
| DOS ea polasetiki | 1 ho isa ho 5% | Matla a mechini ≥ 0.85 MPa |
| HTPB e khomarelang le moemeli oa ho folisa | 7 ho isa ho 10% | Sekhahla sa ho lelefatsa > 35% |
| Sethothatsi sa ho folisa | 0.005 ho isa ho 0.05% | |
| Moemeli oa ho lokisa marang-rang | 0.2 ho isa ho 2.0% | |
| Moemeli oa ho folisa (PAPI, MDI, XDI, TDI) |
Liteko tsa Taolo ea Boleng le ho Tsitsisa
O tlameha ho hlahloba propellant e phekotsoeng bakeng sa boleng le botsitso. Leka matla a mechini ho netefatsa hore e fihlela maemo a hlokahalang. Lekanya sekhahla sa ho lelefala 'me u hlahlobe mapetso kapa lipululana. Sebelisa lisebelisoa tse leka-lekaneng bakeng sa litekanyo tsohle. Haeba u fumana mathata afe kapa afe, u lokela ho pheta ts'ebetso ho netefatsa polokeho le ts'ebetso.
Keletso: Boloka direkoto tse qaqileng tsa sehlopha se seng le se seng. Sena se o thusa ho latela boleng le ho bona mekhoa ha nako e ntse e ya.
Ho Lokisetsa Sefutho sa ho Tsamaisa Difofane
O hloka ho latela melao e thata pele o sebedisa HTPB (Hydroxyl-terminated polybutadiene) sefofaneng. Etsa bonnete ba hore propellant ya hao e fihlella maemo ohle a polokeho le a tikoloho. Tsena ke ditlhoko tse ding tsa bohlokwa:
- Latela litataiso tsa polokeho ea sebaka sa mosebetsi le tikoloho.
- Fokotsa tlhahiso ea VOC le ho pepesehela lik'hemik'hale.
- Sebelisa kalafo e nepahetseng ea litšila le taolo ea mosi o tsoang.
- Fumana mangolo a tumello le disetifikeiti tsohle tse hlokahalang.
Ha o qeta mehato ena, propellant ea hau e se e loketse ho sebelisoa lits'ebetsong tsa lifofane. Ho lokisa le ho etsa liteko ka hloko ho u thusa ho fana ka ts'ebetso e tšepahalang nako le nako.
O ka sebedisa HTPB (Hydroxyl-terminated polybutadiene) ka hara di-propellant tsa sefofane ka ho latela mehato e meraro. Ntlha ya pele, lokisa thepa. Ka mor'a moo, kopanya le ho etsa metsoako. Qetellong, lokisa le ho phethela propellant.
Ho ela hloko mohato o mong le o mong ho o thusa ho fihlela diphetho tse tshepahalang mme ho tshehetsa ditshebediso tse bolokehileng tsa sefofane.
LBH
Tšebeliso e ka sehloohong ea HTPB ke efe ho li-propellant tsa lifofane?
U sebelisa HTPB e le sehokelo. E tšoara mafura le sehokelo sa oxidizer hammoho. Sena se thusa ho theha propellant e matla, e tenyetsehang le e sebetsang hantle.
U lokela ho boloka HTPB joang bakeng sa liphetho tse ntle ka ho fetisisa?
O lokela ho boloka HTPB sebakeng se pholileng, se omileng, le se nang le moea o kenang hantle. Kamehla koala setshelo ka thata ho thibela mongobo ho kena.
Na o ka etsa HTPB e le ea hau bakeng sa litlhoko tse khethehileng tsa lifofane?
E! O ka kopa Theorem Chem bakeng sa dikereiti tsa HTPB tse ikgethileng. Ba ka fetola foromo hore e tsamaisane le ditlhoko tsa projeke ya hao.