Ho na le khetho e pharaletseng ea lisebelisoa tse tala bakeng sa li-composites, ho kenyelletsa le li-resin, likhoele le lisebelisoa tsa mantlha, 'me thepa e' ngoe le e 'ngoe e na le litšobotsi tsa eona tse ikhethang tsa matla, ho satalla, ho tiea le botsitso ba mocheso, ka litšenyehelo le lihlahisoa tse fapaneng. Leha ho le joalo, ts'ebetso ea ho qetela ea thepa e kopantsoeng ka kakaretso ha e amane feela le matrix a resin le likhoele (hammoho le thepa ea mantlha ka sebopeho sa thepa ea sandwich), empa hape e amana haufi-ufi le mokhoa oa moralo le ts'ebetso ea tlhahiso ea thepa. sebopehong. Ka pampiri ena, re tla hlahisa mekhoa e sebelisoang hangata ea ho etsa li-composite, lintlha tse ka sehloohong tse susumetsang mokhoa o mong le o mong le hore na lisebelisoa tse tala li khethoa joang bakeng sa mekhoa e fapaneng.
Ho fafatsa ho bopa
1, tlhaloso ea mokhoa: mokhoa o khuts'oane oa li-fiber tse matlafatsang le sistimi ea resin ka nako e ts'oanang e fafatsoa ka har'a hlobo, ebe e phekoloa ka tlas'a khatello ea sepakapaka ho lihlahisoa tse kopaneng tsa thermosetting tsa mokhoa oa ho bopa.
2. Khetho ea lintho tse bonahalang:
Resin: haholo-holo polyester
Fiber: khoele ea khalase e mahoashe
Lisebelisoa tsa mantlha: ha ho letho, li hloka ho kopanngoa le plywood feela
3. Melemo ea mantlha:
1) Histori e telele ea mesebetsi ea matsoho
2) Theko e tlase, ho beoa ka potlako ha fiber le resin
3) Theko e tlaase ea hlobo
4, mefokolo ea mantlha:
1) Plywood e bonolo ho theha sebaka se nang le resin, boima bo phahameng
2) Ho ka sebelisoa likhoele tse khuts'oane feela, tse fokotsang ka botebo thepa ea mochini ea plywood.
3) E le ho nolofatsa ho fafatsa, viscosity ea resin e hloka ho ba tlase ka ho lekaneng, ho lahleheloa ke thepa ea mochine le ea mocheso ea thepa e kopantsoeng.
4) Lintho tse phahameng tsa styrene tsa resin ea spray li bolela hore ho na le kotsi e kholo ho motho ea sebetsang, 'me viscosity e tlaase e bolela hore resin e ka phunyeletsa habonolo liaparo tsa mosebetsi tsa mosebeletsi' me ea kopana le letlalo ka ho toba.
5) Motsoako oa styrene o sa tsitsang moeeng o thata ho finyella litlhoko tsa molao.
5. Lisebelisoa tse Tloaelehileng:
Fensetere e bonolo, liphanele tsa sebopeho sa meroalo e tlase joalo ka 'mele oa likoloi tse fetolehang, meketjana ea literaka, libate le likepe tse nyane.
Hand Layup Molding
1, tlhaloso ea mokhoa: ka letsoho ho kenella ka har'a resin ka har'a likhoele, likhoele li ka lohuoa, tsa lohuoa, tsa rokoa kapa tsa tlamisoa le mekhoa e meng ea ho matlafatsa, ho bopeha ka letsoho hangata ho etsoa ka lirolara kapa borashe, ebe resin e hatelloa ka glue roller ho etsa hore e kenelle ka har'a likhoele. Plywood e behoa tlas'a khatello e tloaelehileng ea ho phekola.
2. Khetho ea lintho tse bonahalang:
Resin: ha ho hlokahale, epoxy, polyester, polyethylene-based ester, li-phenolic resin lia fumaneha.
Fiber: ha ho na litlhoko, empa boima ba motheo ba fiber e kholo ea aramid bo thata ho kenella ka letsoho le behiloeng ka letsoho.
Lisebelisoa tsa mantlha: ha ho hlokahale
3, melemo ea mantlha:
1) Histori e telele ea theknoloji
2) Ho bonolo ho ithuta
3) litšenyehelo tse tlase tsa hlobo haeba u sebelisa mocheso oa kamore o phekola resin
4) Khetho e pharaletseng ea lisebelisoa le bafani ba thepa
5) Lifaeba tse phahameng, likhoele tse telele tse sebelisoang ho feta mokhoa oa ho fafatsa
4, mefokolo e ka sehloohong:
1) Ho kopanya resin, lihlahisoa tsa resin ea laminate le boleng li amana haufi-ufi le bokhoni ba mokhanni, ho thata ho fumana lihlahisoa tse tlaase tsa resin le porosity e tlaase ea laminate.
2) Likotsi tsa bophelo bo botle le polokeho ea resin, ho theola boima ba limolek'hule tsa resin e behang letsoho, ho ba le ts'okelo e kholo ho bophelo bo botle, ho theola viscosity ho bolela hore resin e na le monyetla oa hore e kenelle liphahlong tsa mosebetsi tsa basebetsi mme ka hona e kene kahare. ho kopana ka kotloloho le letlalo.
3) Haeba moea o motle o sa kenngoa, ho thata ho finyella litlhoko tsa molao tsa styrene ho tloha polyester le polyethylene-based esters.
4) The viscosity ea letsoho-paste resin e hloka ho ba tlase haholo, kahoo litaba tsa styrene kapa li-solvents tse ling li tlameha ho ba tse phahameng, kahoo li lahleheloe ke thepa ea mochine / mocheso oa thepa e kopantsoeng.
5) Lisebelisoa tse tloaelehileng: likhaba tse tloaelehileng tsa turbine ea moea, liketsoana tse hlahisoang ka bongata, mehlala ea meralo.
Mokhoa oa ho kenya mokotla oa vacuum
1. Tlhaloso ea mokhoa: Ts'ebetso ea "vacuum bagging" ke katoloso ea ts'ebetso e kaholimo ea kaho ea letsoho, ke hore, ho tiisa lesela la filimi ea polasetiki holim'a hlobo e tla ba vacuum ea plywood ea letsoho, ho sebelisa khatello ea sepakapaka ho plywood ho fihlela phello ea ho khathala. le ho tiisa, e le ho ntlafatsa boleng ba thepa e kopantsoeng.
2. khetho ea thepa:
Resin: haholo-holo epoxy le phenolic resin, polyester le polyethylene-based ester ha e sebetse, hobane e na le styrene, volatilization ho pompo ea vacuum.
Fiber: ha ho hlokahale, le haeba boima ba motheo ba likhoele tse kholo bo ka kenngoa tlas'a khatello
Lisebelisoa tsa mantlha: ha ho hlokahale
3. Melemo ea mantlha:
1) Likahare tse phahameng tsa fiber ho feta mokhoa o tloaelehileng oa ho beha matsoho li ka finyelloa
2) Karolelano ea lefeela e tlase ho feta mokhoa o tloaelehileng oa ho beha matsoho.
3) Tlas'a khatello e mpe, resin e phalla ka ho lekaneng ho ntlafatsa tekanyo ea ho kenella ha fiber, ha e le hantle, karolo ea resin e tla kenngoa ke lisebelisoa tsa vacuum.
4) Bophelo bo botle le tšireletseho: ts'ebetso ea mokotla oa vacuum e ka fokotsa ho lokolloa ha li-volatile nakong ea phekolo
4, mefokolo e ka sehloohong:
1) Ts'ebetso e eketsehileng e eketsa litšenyehelo tsa basebetsi le lisebelisoa tsa mokotla oa vacuum tse lahliloeng
2) Litlhoko tse phahameng tsa litsebo tsa basebetsi
3) Ho kopanya li-resin le taolo ea lihlahisoa tsa resin ho itšetlehile haholo ka bokhoni ba opereishene
4) Le hoja mekotla ea vacuum e fokotsa ho lokolloa ha li-volatiles, kotsi ea bophelo bo botle ho motho ea sebetsang e ntse e phahame ho feta ea infusion kapa prepreg process.
5, Lisebelisoa tse tloaelehileng: boholo bo boholo, li-yachts tsa khatiso e le 'ngoe e lekanyelitsoeng, likarolo tsa koloi ea mabelo, ts'ebetso ea kaho ea likepe ea maqhama a mantlha.
Mokokotlo wa ho Hlakola
1. Tlhaloso ea mokhoa: Mokhoa oa ho tsoelipana ha e le hantle o sebelisoa ho etsa likarolo tsa sebopeho se sekoti, se chitja kapa sa oval joalo ka liphaephe le likoti. Fiber dingata ba resin-impregnated 'me joale leqeba ka mandrel ka litsela tse sa tšoaneng. Tshebetso e laoloa ke mochine o tsoelipanang le lebelo la mandrel.
2. Khetho ea lintho tse bonahalang:
Resin: ha ho hlokahale, joalo ka epoxy, polyester, polyethylene-based ester le phenolic resin, joalo-joalo.
Fiber: ha ho na litlhoko, tšebeliso e tobileng ea likhoele tsa fiber ea foreimi ea spool, ha ho hlokahale hore e lohe kapa e rokelloe ka lesela la fiber.
Lintho tse ka sehloohong: ha ho hlokahale, empa letlalo hangata ke thepa e entsoeng ka lera le le leng
3. melemo ea mantlha:
(1) lebelo la tlhahiso e potlakileng, ke mokhoa oa moruo le o utloahalang oa li-layups
(2) Likahare tsa resin li ka laoloa ka ho lekanya palo ea resin e tsamaisoang ke likhoele tsa fiber tse fetang ka har'a groove ea resin.
(3) Litšenyehelo tse fokolang tsa fiber, ha ho na mokhoa oa ho loha o mahareng
(4) ts'ebetso e ntle ea meralo, hobane likhoele tsa likhoele li ka beoa ho latela litaelo tse fapaneng tsa ho jara.
4. Mathata a mantlha:
(1) Ts'ebetso e lekanyelitsoe ho meaho e sekoti e chitja.
(2) Li-fibers ha li hlophisoe habonolo le ka nepo ho latela tataiso ea axial ea karolo
(3) Litšenyehelo tse phahameng tsa mandrel positive molding bakeng sa likarolo tse kholo tsa sebopeho
(4) Sebaka se ka ntle sa mohaho ha se bokaholimo ba hlobo, kahoo botle bo bobe le ho feta
(5) Tšebeliso ea resin e tlase ea viscosity, e hloka ho ela hloko thepa ea mochini le ts'ebetso ea bophelo bo botle le polokeho.
Lisebelisoa tse tloaelehileng: litanka tsa polokelo ea lik'hemik'hale le liphaephe, li-cylinders, litanka tse phefumolohang tse thibelang mollo.
Ho bopa ha pultrusion
1. tlhaloso ea mokhoa: ho tloha ho sets'oants'o sa bobbin se huleloang sekhomaretsi se kentsoeng ka sekhomaretsi ka poleiti ea ho futhumatsa, ka poleiting ea ho futhumatsa ho tlatsa resin holim'a ho kenella ha fiber, le ho laola bokahare ba resin, 'me qetellong thepa e tla phekoloa ka sebopeho se hlokahalang. ; sebopeho sena sa sehlahisoa se phekotsoeng se tsitsitseng se khaola ka mokhoa oa mechine ka bolelele bo fapaneng. Li-fibers li ka boela tsa kenya poleiti e chesang ka litsela tse ling ntle le likhato tse 0. Extrusion le ho otlolla ho bōptjoa ke mokhoa o tsoelang pele oa tlhahiso 'me sehlahisoa sa sefapano sa lihlahisoa hangata se na le sebopeho se tsitsitseng, se lumellang ho fapana ho fokolang. E tla feta ka poleiti chesang ea lintho tse bonahalang pele ho metsi tse tsitsitseng le ho hasana ka hlobo hang-hang folisa, le hoja tshebetso e joalo ke ka tlaase ho moo tsoela pele, empa ka finyella sefapano karolo sebopeho phetoho.
2. Khetho ea lintho tse bonahalang:
Resin: hangata epoxy, polyester, polyethylene-based ester le phenolic resin, joalo-joalo.
Fiber: ha ho hlokahale
Lisebelisoa tsa mantlha: ha li sebelisoe hangata
3. Melemo ea mantlha:
(1) lebelo la tlhahiso e potlakileng, ke mokhoa oa moruo le o utloahalang oa ho kolobisa pele le ho folisa thepa
(2) taolo e nepahetseng ea li-resin content
(3) ho fokotsa litšenyehelo tsa fiber, ha ho na mokhoa oa ho loha o mahareng
(4) thepa e ntle ea sebopeho, hobane likhoele tsa fiber li hlophisitsoe ka mela e otlolohileng, karoloana ea fiber volume e phahame.
(5) sebaka sa ho kenella ha fiber se ka koaloa ka ho feletseng ho fokotsa ho lokolloa ha li-volatiles
4. mefokolo ea mantlha:
(1) ts'ebetso e fokotsa sebopeho sa karolo ea sefapano
(2) Theko e phahameng ea poleiti ea ho futhumatsa
5. Lisebelisoa tse tloaelehileng: maballo le lithapo tsa mehaho ea matlo, marokho, litepisi le terata.
Resin Transfer Molding process (RTM)
1. Tlhaloso ea mokhoa: Likhoele tse omeletseng li behiloe ka har'a hlobo e ka tlaase, e ka khonang ho hatelloa pele ho etsa hore likhoele li lumellane le sebōpeho sa hlobo ka hohle kamoo ho ka khonehang 'me li khomarele ka thata; joale, hlobo e ka holimo e tsitsitsoe holim'a hlobo e ka tlaase ho etsa sekoti, ebe resin e kenngoa ka mokoting. Hangata ho sebelisoa ente ea resin e thusoang ke vacuum le ho kenella ha likhoele, tse tsejoang ka hore ke Vacuum-Assisted Resin Injection (VARI). Hang ha ho kenngoa ha fiber ho phethiloe, valve ea kenyelletso ea resin e koetsoe 'me motsoako oa phekoloa. Resin ente le pheko e ka etsoa ka mocheso oa kamore kapa tlas'a maemo a futhumetseng.
2. Khetho ea Lintho:
Resin: hangata epoxy, polyester, polyvinyl ester le phenolic resin, bismaleimide resin e ka sebelisoa ka mocheso o phahameng.
Fiber: ha ho hlokahale. Sewn fiber e loketse ts'ebetso ena, hobane lekhalo pakeng tsa sephutheloana sa fiber le thusa ho fetisa resin; ho na le likhoele tse ntlafalitsoeng ka ho khetheha tse ka khothaletsang phallo ea resin
Lintho tse ka sehloohong: foam ea cellular ha e tšoanelehe, hobane lisele tsa mahe a linotši li tla tlala resin, 'me khatello e tla boela e etse hore foam e oele.
3. melemo ea mantlha:
(1) Karolo e phahameng ea fiber volume, porosity e tlase
(2) Bophelo bo botle le polokeho, tikoloho ea ts'ebetso e hloekileng le e makhethe kaha resin e tiisitsoe ka botlalo.
(3) Fokotsa tšebeliso ea mosebetsi
(4) Mahlakore a ka holimo le a ka tlaase a likarolo tsa mohaho ke libaka tse bōpiloeng, tse bonolo bakeng sa phekolo e latelang ea holim'a metsi.
4. Mathata a mantlha:
(1) Mefuta e sebelisoang hammoho e theko e boima, e boima ebile e batla e le khōlō e le hore e khone ho mamella khatello e matla.
(2) e lekanyelitsoeng ho etsoa ha likarolo tse nyenyane
(3) Libaka tse sa kolobisoang li ka etsahala habonolo, li baka palo e kholo ea likhechana
5. Lisebelisoa tse tloaelehileng: sepakapaka se senyenyane le se rarahaneng le likarolo tsa koloi, litulo tsa terene.
Nako ea poso: Aug-08-2024
