litaba

Moralong oa tšireletso ea mocheso oa lihlahisoa tsa lifofane, bakeng sa likarolo tse hlokang botenya bo boholo, tse nang le li-geometri tse rarahaneng, kapa tse kotsing ea ho petsoha ha khatello ea maikutlo, thepa e kopaneng e sebelisoa hangata e le sebaka sa liaparo tsa setso tsa tšireletso ea mocheso. Ho feta moo, meaho ea tšireletso ea mocheso e kopaneng e fana ka likhetho tse fapaneng tsa tlhahiso: li ka thehoa ka potlako ka kotloloho sebakeng se itseng sa tšireletso ea mocheso, kapa li ka kopanngoa sebakeng sa tsona ho sebelisoa matsoho a tšireletso ea mocheso a kopantsoeng a entsoeng esale pele, ka hona li fana ka melemo e ikhethang ea ts'ebetso e sebetsang hantle le e bonolo ea ho lokisa. Hona joale, metsoako ea faeba ea khalase ea phenolic e sebelisoa haholo meahong ea tšireletso ea mocheso ka lebaka la melemo ea eona e mengata, ho kenyeletsoa botsitso ba sebopeho, ho hanyetsa mocheso o phahameng, chai e phahameng, sekhahla se tlase sa ablation, matla a phahameng a mechini, le ho tiea ho hoholo ha tšusumetso.

Metswako ea khalase ea phenolic fibere na le monyetla o moholo oa ts'ebeliso e pharaletseng ka har'a lefapha la lifofane. Mokhoa oa tsona oa tšireletso ea mocheso o kenyelletsa tšebelisano-'moho ea lits'ebetso tse ngata tsa tšireletso, ho kenyeletsoa thibelo ea ho tsamaisa mocheso, endothermic pyrolysis, insulation ea mocheso e fanoang ke lera la char, le tšehetso ea sebopeho. Pampiri ena e tla sekaseka haholo-holo mokhoa oa tšireletso ea mocheso ho tsoa ponong ea thibelo ea ho tsamaisa mocheso, endothermic pyrolysis, le insulation ea mocheso e fanoang ke lera la char.

1. Thibelo ea ho Tsamaisa Mocheso

Ka hare ho metsoako ea khalase ea faeba ea phenolic, matrix ea resin ea phenolic ka boeona e na le phallo ea mocheso e tlase ka tlhaho, e thusang ho liehisa ho tsamaisoa ha mocheso oa kantle haholo. Ha thepa e kopantsoeng e le tlas'a maemo a mocheso o phahameng a kopanang le nakong ea ho fofa, mocheso o qala ho ata ka hare ho tsoa holim'a bokaholimo bo ka ntle. Leha ho le joalo, sebopeho sa ketane ea macromolecular e amanang le matrix ea resin ea phenolic se sitisa litsela tsa ho tsamaisoa ha mocheso, ka hona se baka phokotso e kholo sekhahla sa phetisetso ea mocheso. Ka nako e ts'oanang, boteng ba likhoele tsa khalase ka har'a motsoako bo fetola litsela tsa ka hare tsa ho tsamaisoa ha mocheso. Ho feta moo, sebopeho se pakeng tsa likhoele tsa khalase le resin ea phenolic se bontša khanyetso e phahameng ea mocheso; ka lebaka leo, mocheso o kopana le impedance e eketsehileng ha o ntse o feta sebopehong sena, o thibela ts'ebetso ea ho tsamaisoa ha mocheso le ho fokotsa sekhahla sa ho phahama ha mocheso ka har'a thepa e kopantsoeng ka katleho.

2. Endothermic Pyrolysis

Ha e pepesetsoa tikolohong e kantle e nang le mocheso o phahameng, resin ea phenolic e feta liketsong tse tsoelang pele tsa pyrolysis. Ts'ebetso ena ea pyrolysis ke karabelo ea endothermic: ha e monya matla a mocheso, litlamo tsa lik'hemik'hale ka har'a limolek'hule tsa phenolic resin lia phatloha, e leng se etsang hore thepa e bole hore e be likhase tse nyane tsa limolek'hule le masala a carbonaceous. Ts'ebetso ena e sebelisa matla a mocheso a fetisetsoang ho tloha tikolohong e kantle ho ea holim'a motsoako, ka hona ka nako e le 'ngoe e theola mocheso oa bokaholimo ba thepa e kopaneng. 3. Ho Sireletsa Mocheso ka Char Layer

Ha karabelo ea pyrolysis e ntse e tsoela pele, lera la char le thehoa butle-butle holim'amotsoako oa resin ea phenolic. Lera lena la char le na le sebopeho se nang le masoba, ka masoba a lona a tletseng likhase tse bonts'ang ho tsamaisa mocheso o tlase haholo; tšobotsi ena e ntlafatsa bokhoni ba ho thibela mocheso ba composite. Ka nako e ts'oanang, lera la char le hlahisa sebopeho sa bokaholimo bo thata bo khonang ho mamella likhatello tse itseng tsa aerodynamic le meroalo ea mechini, ka hona e sireletsa thepa e sa chesoang e ka tlase liphellong tsa ho hohla le ho khoholeha ha phallo ea khase ea mocheso o phahameng. Lera la char le hlahisoang holim'a bokaholimo bo kopaneng ha le sebeletse feela mosebetsi oa ho thibela mocheso empa hape, ho isa bohōleng bo itseng, le fokotsa tahlehelo ea bongata ka har'a composite, ka hona le atolosa bophelo ba ts'ebeletso ea sebopeho sa tšireletso ea mocheso.