Inhlanganisela yokubumba amashidi ibhekisela kunhlaka ye-polyester engagcwalisiwe njengomzimba oyinhloko, ingeza i-ejenti yokwelapha, i-ejenti yokukhululwa kwesikhunta, isicwenga, i-ejenti enciphayo ephansi, i-thickener, njll. Inhlanganisela yokubumba embozwe ngefilimu ye-polyethylene (PE).Leli phepha ikakhulukazi lichaza kafushane ukwakheka nokusetshenziswa kwezigaba kwe-SMC.
Ukwakheka Kweshidi Lokubumba Inhlanganisela
I-SMC yakhiwe nge-polyester resin engagcwalisiwe, i-crosslinking agent, initiator, filler, thickener, i-ejenti yokukhulula, i-glass fiber, kanye ne-polymerization inhibitor.Phakathi kwazo, izigaba ezine zokuqala ikakhulukazi zihlinzeka ngohlaka lwezinto ezibonakalayo zemikhiqizo futhi zikhulise amandla.Izigaba ezine zokugcina zingezezakhiwo zokwanda kwe-viscosity, ukumelana nokugqwala, ukwahlukanisa, kanye nokuzinza kwesakhiwo somkhiqizo.
1. I-polyester resin engagcwele kanye nama-crosslinking agents ayindikimba eyinhloko ye-SMC.Izinhlayiya ze-polyester ezingenalutho ngokuvamile zi-polycondensed kusuka ku-unsaturated dicarboxylic acid (noma ama-anhydrides), ama-dicarboxylic acid agcwele (noma ama-anhydrides), nama-polyols.Inezici ezithile zemishini namandla, futhi amandla angaphakathi afanayo.I-agent exhumanisa ngokuyinhloko i-styrene.Ngemuva kokuthi lezi zibili zixhumene, ziyizinto eziyinhloko zokuphulukisa ipulasitiki yomkhiqizo, edlala indima yokuxhuma, ukusekelwa, ibhalansi yokudlulisela, nokuvikela.
2. Umqalisi udala ukuthi inhlaka ne-crosslinker zelaphe futhi yakhe esigabeni sokunamathisela inhlaka.Umsebenzi wayo ngokuyinhloko ukwenza i-resin kanye nesibopho esiphindwe kabili ku-monomer exhumanisa okuphambanayo njenge-styrene copolymerize ukuze i-SMC iqiniswe futhi yakheke emgodini wesikhunta.
3. I-filler ithatha ngaphezu kwengxenye eyodwa kwezintathu yenhlanganisela yokubumba amashidi futhi ingalungisa i-viscosity ye-compound yokubumba.Ngokuvamile idinga ukuba nezici zamandla adonsela phansi akhethekile, inani eliphansi le-adsorption kawoyela, izimbotshana ezimbalwa, ukumelana nokugqwala, kanye nezindleko eziphansi.Izingxenye zokugcwalisa ezisetshenziswa kakhulu yi-CaCO3, Al(OH)3, njalo njalo.
4. Ama-thickeners anikeza i-SMC i-viscosity ephezulu, impahla enganamatheli.Ukulungiswa kweshidi kanye nezinhlanganisela zokubumba ngobuningi kudinga i-viscosity ephansi ye-resin ukuze kube lula ukufakwa kwe-fiber yeglasi kanye nokugcwalisa nge-resin.Futhi ukubunjwa kokucindezela kudinga i-viscosity ephezulu.Ngakho-ke, kuyadingeka ukwengeza i-thickener ngaphambi kwenqubo yokubumba ukuguqula i-viscosity ephansi ye-glass fibre impregnation ibe yi-viscosity ephezulu enganamathele.
5. I-ejenti yokukhishwa ivimbela i-Sheet yokubumba yokubumba ekubeni nobumbano obunobumbano lwensimbi.I-ejenti yokukhulula ingavimbela inhlaka ye-polyester engagcwalisiwe ukuthi ingahlangani nobuso besikhunta sensimbi phakathi nenqubo yepulasitiki yengxube ye-resin.Ikakhulukazi ama-acids amaketanga amade noma osawoti abamelwe yi-zinc stearate.Ukusebenzisa ngokweqile kuzonciphisa kalula ukusebenza komkhiqizo.Ukusetshenziswa okuvamile kubala u-1~3% wawo wonke umkhiqizo ukuze kuqinisekiswe ikhwalithi yomkhiqizo.
6. Imicu yengilazi ingathuthukisa ukumelana nokugqwala kanye nezakhiwo ze-SMC.Ikhompiyutha yokubumba amashidi ngokuvamile ikhetha omata be-fiber engilazi abasikiwe njengento yokuqinisa.Ukusetshenziswa ngokweqile kuzokwenza kalula umkhiqizo ube ne-fluffy kakhulu, futhi ukusetshenziswa komthamo omncane kakhulu ngeke kube nomphumela ocacile wokuqinisa umkhiqizo.Ukusetshenziswa okuvamile cishe ku-20%.Ngale ndlela, umkhiqizo ungahlangana ngesikhathi esisodwa izinqubo ezimbili zokubunjwa kwe-extrusion kanye nokubunjwa kokucindezela.
7. I-inhibitor inyusa ukuzinza kwe-SMC futhi yandisa isikhathi sokugcina.Njengoba i-initiator styrene izobola kancane, ibangele i-polymerization ye-resin, ukwengeza inani elifanele le-free radical scavenger (i-polymerization inhibitor) inganciphisa isivinini sokubola kwe-styrene futhi yandise isikhathi sayo sokugcina.Ama-inhibitors ngokuvamile ama-benzoquinone kanye nama-polyvalent phenolic compounds.
Ukusetshenziswa Kwemikhiqizo Yenhlanganisela Yeshidi
I-SMC inezinzuzo zokusebenza kahle kukagesi, ukumelana okuqinile kokugqwala, okungasindi, okulula, okulula futhi okuguquguqukayo kobunjiniyela bokubunjiniyela, njll. Izakhiwo zayo zemishini ziqhathaniswa nezinye izinto zensimbi.Ngakho-ke, isetshenziswa kakhulu emikhakheni eyisishiyagalombili efana nemboni yezimoto, izimoto zikaloliwe, ezokwakha, izinto zikagesi kanye nezokuxhumana (Ithebula 1).
Phakathi kwazo, ekuqaleni kwawo, kwakusetshenziswa ikakhulukazi ngendlela yokufaka amabhodi afaka amabhodi emikhakheni yokwakha, izinto zikagesi, kanye nezokuxhumana, futhi ubuchwepheshe buvuthiwe.Yabe isisetshenziswa embonini yezimoto ukushintsha ingxenye yensimbi ne-aluminium alloy materials yomzimba ukunciphisa isisindo semoto.
Ngaphansi kwesizinda sokonga kwamanje kanye nokunciphisa ukukhishwa kwegesi kanye nokuthuthukiswa kwezimoto ezintsha zamandla, ubuchwepheshe bemikhiqizo yezimoto buyaqhubeka buthuthukela ekufinyeleleni kwekhwalithi engasindi kanye nekhwalithi ephezulu.Kuze kube manje, ukusetshenziswa kwezinto ze-SMC kungabonakala yonke indawo ekuphileni kwansuku zonke.Ibonakala ekuxhumaneni okungenantambo, ezindaweni zikagesi ezingaqhumi, izinto zokuvikela phansi, izindlu zangasese, kanye nezindawo zikaloliwe ezihamba ngesivinini esiphezulu.
Ithebula 1 Izicelo ezinkulu eziyisishiyagalombili nezinkambu zokuhlukaniswa iziqephu zezinto ze-SMC
| NO | Inkambu | |
| 1 | Imboni ye-auto | Izingxenye zokumiswa, amadeshibhodi;izingxenye zomzimba kanye nezingxenye;izingxenye ezingaphansi kwe-hood |
| 2 | Imoto yesitimela | Ozimele bewindi;Izihlalo;Amapaneli enqola kanye nosilingi;Izingxenye zangasese |
| 3 | Umkhakha wezokwakha | Ithangi lamanzi;Imikhiqizo yokugeza;Ithangi le-Septic;Isakhiwo sefomu;Izingxenye zegumbi lesitoreji |
| 4 | Izinto zikagesi kanye Nezokuxhumana | Izivalo zikagesi;izingxenye zikagesi kanye nezingxenye (amathuluzi okushisa) |
| 5 | Igumbi lokugezela | Ukucwila;Imishini yokugeza;Igumbi lokugezela jikelele;Izingxenye zokuhlanzeka |
| 6 | Izinto eziphansi | I-anti-slip anti-tuli floor |
| 7 | Indawo kagesi engaqhumi | Imikhiqizo ye-ExcleShion-Proof Electrical Equipment Imikhiqizo |
| 8 | Ukuxhumana okungenantambo | I-antenna yesibonisi se-FRP, njll |
Fingqa
I-polyester resin engagcwalisiwe, i-agent exhumanisayo, isiqalisi, nesigcwalisi esakhiweni sokubumba amashidi sinikeza uhlaka lwempahla yomkhiqizo futhi andise amandla esakhiwo.I-Thickener, i-ejenti yokukhulula, i-glass fiber, kanye ne-polymerization inhibitor yengeza i-viscosity, ukumelana nokugqwala, ukwahlukanisa, nokuzinza kwesakhiwo somkhiqizo.Imikhiqizo enjalo isetshenziswe emikhakheni emikhulu eyisishiyagalombili okuhlanganisa imboni yezimoto kanye nezimoto zikaloliwe.Ngaphansi kwesizinda samanje sokongiwa kwamandla, ukuvikelwa kwemvelo, kanye nokusetshenziswa kwamandla okuphansi, imboni yezimoto ibeke phambili izidingo eziphakeme neziphakeme zezinto ezisetshenziswayo ze-SMC ngenxa yezidingo zabo ezingasindi.Okungumfutho omkhulu wokuthuthukiswa kobuchwepheshe be-SMC.
Sebenzisaumshini wokucindezela we-hydraulic oyinhlanganiselaukucindezela imikhiqizo ehlanganisiwe yokubumba amashidi.UZhengxi ungumbungazi ovelelei-hydraulic press factory e-China, ukuhlinzeka ngokunyathelisa kwekhwalithi ephezulu.Xhumana nathi ukuze uthole imininingwane.
Isikhathi sePosi: Meyi-17-2023
