Motsoako oa ho bopa oa pampiri o bua ka resin ea polyester e sa tsitsang e le 'mele o ka sehloohong, e eketsang pheko, moemeli oa ho lokolloa ha hlobo, filler, low shrinkage agent, thickener, joalo-joalo Motsoako oa ho bōpa o koahetsoeng ka filimi ea polyethylene (PE).Pampiri ena e hlalosa ka bokhuts'oane ts'ebeliso le sebopeho sa SMC.
Sebopeho sa Sheet Molding Compound
SMC e entsoe ka resin ea unsaturated polyester, crosslinking agent, initiator, filler, thickener, release agent, glass fiber, le polymerization inhibitor.Har'a tsona, lihlopha tse 'nè tsa pele li fana ka moralo oa thepa bakeng sa lihlahisoa le ho eketsa matla.Likarolo tse 'nè tsa ho qetela ke tsa thepa ea ho eketseha ha viscosity, ho hanyetsa kutu, ho kenya letsoho, le botsitso ba sebopeho sa sehlahisoa.
1. Unsaturated polyester resin le crosslinking agents ke 'mele o moholo oa SMC.Li-resine tsa polyester tse sa tsitsang hangata li entsoe ka polycondensed ho tloha ho unsaturated dicarboxylic acids (kapa anhydrides), saturated dicarboxylic acids (kapa anhydrides), le polyols.E na le lisebelisoa tse itseng tsa mechine le matla, 'me matla a ka hare a tšoana.The crosslinking agent ke haholo-holo styrene.Ka mor'a hore tse peli li kopane, ke lisebelisoa tse ka sehloohong bakeng sa ho phekola polasetiki ea sehlahisoa, e bapalang karolo ea ho hokahanya, tšehetso, tekanyo ea phetisetso le tšireletso.
2. Moqapi o etsa hore resin le crosslinker li fole le ho theha sethaleng sa peista ea resin.Mosebetsi oa eona ke haholo-holo ho etsa hore resin le tlamahano e habeli ka har'a monoma e kopanyang lifapano tse kang styrene copolymerize e le hore SMC e ka tiisoa le ho thehoa ka har'a hlobo ea hlobo.
3. Filler e nka karolo e fetang e le 'ngoe ho tse tharo ea motsoako oa ho bopa lakane' me e ka fetola viscosity ea motsoako oa ho bopa.Ka kakaretso e hloka ho ba le litšobotsi tsa matla a khoheli a tlase, boleng bo tlase ba adsorption ea oli, li-pores tse fokolang, ho hanyetsa kutu, le litšenyehelo tse tlase.Likarolo tsa li-filler tse sebelisoang hangata haholo ke CaCO3, Al(OH)3, joalo-joalo.
4. Li-thickeners li fa SMC sebaka se phahameng sa viscosity, se sa khomarelang.Ho lokisoa ha lakane le metsoako e mengata ea ho bopa ho hloka hore ho be le viscosity e tlase ea resin ho nolofatsa ho kenngoa ha fiber ea khalase le ho tlatsa ka resin.'Me ho bopa ha compression ho hloka viscosity e phahameng.Ka hona, hoa hlokahala ho eketsa motenya pele ho ts'ebetso ea ho bopa ho fetolela viscosity e tlase ea khalase ea fiber impregnation hore e be viscosity e phahameng e sa khomarelang.
5. Moemeli oa ho lokolla o thibela motsoako oa ho bopa lakane hore o se ke oa ba le kamano le bokaholimo ba hlobo ea tšepe.Moemeli oa ho lokolla a ka thibela resin ea polyester e sa tsitsang hore e se ke ea kopana le holim'a hlobo ea tšepe nakong ea ts'ebetso ea polasetiki ea motsoako oa resin.Haholo-holo li-acid tse mafura a ketane e telele kapa matsoai a emeloang ke zinc stearate.Tšebeliso e feteletseng e tla fokotsa habonolo ts'ebetso ea sehlahisoa.Tšebeliso e akaretsang e nka 1 ~ 3% ea kakaretso ea sehlahisoa ho netefatsa boleng ba sehlahisoa.
6. Likhoele tsa khalase li ka ntlafatsa ho hanyetsa ha kutu le thepa ea ho kenya letsoho ea SMC.Motsoako oa ho bopa maqephe hangata o khetha limmete tsa fiber tse khaotsoeng e le lisebelisoa tse matlafatsang.Tšebeliso e feteletseng e tla etsa hore sehlahisoa se be bonolo haholo, 'me tšebeliso ea tekanyo e nyenyane haholo e ke ke ea e-ba le phello e hlakileng ea ho matlafatsa sehlahisoa.Tšebeliso e akaretsang ke hoo e ka bang 20%.Ka tsela ena, sehlahisoa se ka kopana ka nako e le 'ngoe le mekhoa e' meli ea extrusion molding le compression molding.
7. Inhibitor e eketsa botsitso ba SMC mme e lelefatsa nako ea polokelo.Ho tloha ha styrene ea initiator e tla senyeha butle-butle, e baka polymerization ea resin, ho eketsa palo e loketseng ea free radical scavenger (polymerization inhibitor) e ka liehisa lebelo la ho bola ha styrene le ho lelefatsa nako ea polokelo.Hangata li-inhibitors ke li-benzoquinone le metsoako ea polyvalent phenolic.
Tšebeliso ea Lihlahisoa tsa Motsoako oa Sheet Molding
SMC e na le melemo ea ts'ebetso e ntle ea motlakase, ho hanyetsa ho bola ho matla, ho hanyetsa habonolo, ho bonolo le ho feto-fetoha ha moralo oa boenjiniere, joalo-joalo. Mehaho ea eona ea mechine e bapisoa le lisebelisoa tse ling tsa tšepe.Ka hona, e sebelisoa haholo libakeng tse robeli tse kang indasteri ea likoloi, likoloi tsa terene, kaho, lisebelisoa tsa motlakase le likhokahano (Letlapa la 1).
Har'a bona, qalong, e ne e sebelisoa haholo-holo ka mokhoa oa ho sireletsa mapolanka masimong a kaho, lisebelisoa tsa motlakase le puisano, 'me theknoloji e batla e hōlile.Ka nako eo e ne e sebelisoa indastering ea likoloi ho nkela karolo ea lisebelisoa tsa tšepe le aluminium alloy ea 'mele ho fokotsa boima ba koloi.
Tlas'a semelo sa hona joale sa ho boloka matla le phokotso ea tlhahiso le nts'etsopele ea likoloi tse ncha tsa matla, theknoloji ea lihlahisoa tsa likoloi e ntse e tsoela pele ho ntlafala ho isa boemong bo bobebe le boleng bo holimo.Ho fihlela joale, ts'ebeliso ea lisebelisoa tsa SMC e ka bonoa hohle bophelong ba letsatsi le letsatsi.E bonahala ka likhokahano tse se nang mohala, matlung a motlakase a sa phatloheng, lisebelisoa tsa ho koala fatše, likamore tsa ho hlapela le lits'ebeletso tsa terene tse lebelo le holimo.
Letlapa la 1 Likopo tse kholo tse robeli le likarolo tsa karohano ea lisebelisoa tsa SMC
| NO | Tšimo | Karohano |
| 1 | Indasteri ea likoloi | Likarolo tse emisitsoeng, li-dashboards;dikarolo tsa mmele le dikarolo;likarolo tsa under-hood |
| 2 | Seporo sa terene | Liforeimi tsa lifensetere;Litulo;Liphanele tsa likoloi le siling;Likarolo tsa ntloana |
| 3 | Lekala la kaho | Tanka ea metsi;Lihlahisoa tsa ho hlapa;Septic tanka;Mohaho oa sebopeho;Likarolo tsa kamore ea polokelo |
| 4 | Lisebelisoa tsa Motlakase le Lipuisano | Likamore tsa motlakase;likarolo tsa motlakase le likarolo (lisebelisoa tsa insulation) |
| 5 | Kamore ea ho hlapa | Sink;Thepa ea shaoara;Kakaretso ea kamore ea ho hlapa;Likarolo tsa bohloeki |
| 6 | Boitsebiso ba fatše | Anti-slip anti-static floor |
| 7 | Sebaka sa motlakase se thibelang ho phatloha | Lihlahisoa tsa likhetla tsa lisebelisoa tsa motlakase tse sa phatloheng |
| 8 | Puisano e se nang mohala | FRP e bonahatsang antenna, joalo-joalo |
Akaretsa
The unsaturated polyester resin, crosslinking agent, initiator, le filler ka har'a motsoako oa ho bopa lakane li fana ka moralo oa thepa bakeng sa sehlahisoa le ho eketsa matla a sebopeho.Thickener, moemeli oa ho lokolla, fiber ea khalase, le polymerization inhibitor li eketsa viscosity, ho hanyetsa kutu, ho kenya letsoho, le botsitso ba sebopeho ho sehlahisoa.Lihlahisoa tse joalo li sebelisitsoe libakeng tse robeli tse kholo ho kenyeletsa indasteri ea likoloi le likoloi tsa terene.Tlas'a semelo sa hajoale sa paballo ea matla, ts'ireletso ea tikoloho, le ts'ebeliso e tlase ea matla, indasteri ea likoloi e behile litlhoko tse holimo le tse holimo tsa thepa ea SMC ka lebaka la litlhoko tsa bona tse bobebe.E leng matla a ka sehloohong a susumetsang nts'etsopele ea theknoloji ea SMC.
Sebelisa lemochini o kopanyang oa hydraulic pressho tobetsa lihlahisoa tsa motsoako oa ho bopa.Zhengxi ke setsebifeme ea khatiso ea hydraulic naheng ea China, ho fana ka mechine ea khatiso ea boleng bo holimo.Ikopanye le rona ho fumana lintlha.
Nako ea poso: May-17-2023
