izindaba

Inqubo ye-RTM inezinzuzo zomnotho omuhle, ukuklama okuhle, ukuguquguquka okuphansi kwe-styrene, ukunemba okuphezulu komkhiqizo kanye nekhwalithi enhle yendawo phezulu kuze kufike ku-grade A.
Inqubo yokubumba ye-RTM idinga usayizi onembe kakhudlwana wesikhunta. I-rtm ngokuvamile isebenzisa i-yin ne-yang ukuvala isikhunta, ngakho-ke iphutha likasayizi wesikhunta kanye nokulawulwa okunembile kogqinsi lwesigxobo ngemva kokuvala isikhunta kuyinkinga eyinhloko.

1, Ukukhetha impahla
Ukulawula ukunemba kwesikhunta, ukukhethwa kwezinto ezingavuthiwe kuyisici esibalulekile. Ukukhiqizwa kweIsikhunta se-RTMesetshenziswa ku ijazi isikhunta isikhunta kufanele kube nomthelela high ukuqina, high ukumelana ukushisa kanye shrinkage low, ngokuvamile ingasetshenziswa vinyl ester uhlobo isikhunta ijazi ijeli.
I-RTM mold resin ngokuvamile nayo idinga ukumelana nokushisa okuhle nokuqina, izinga elithile lokuqina komthelela, ukushwabana kuncane noma kusondele ku-zero shrinkage.Izibungu ze-RTM ezinezinsimbi zokuqinisa i-fiber zingasetshenziswa 30g / ㎡ okungeyona i-alkali okuzwakalayo kanye ne-300g / ㎡ okungeyona i-alkali yokusika okufushane. Nge-300g / m okunqamulelayo okungeyona i-alkali okuzwakalayo kune-450g / m okunqamulelayo okungeyona i-alkali okuzwakalayo okwenziwe ngokuncipha kwesikhunta kuphansi, ukunemba okuphezulu kwe-dimensional.

2, Ukulawulwa kwenqubo
Ukukhethwa kwezinto zokusetshenziswa ukulawula ubukhulu besikhunta se-RTM kanye nogqinsi lwe-cavity yesixhumanisi esibalulekile, futhi inqubo yokuguqula isikhunta nganoma yisiphi isikhathi ukulawulwa kwekhwalithi kuyinqubo ebaluleke kakhulu. Uma le nqubo yokulawula ingafaneleki, ngisho noma impahla eluhlaza ihlangabezana nokusetshenziswa kwezidingo, kunzima ukuguqula isikhunta ngobukhulu obunembile kanye nobukhulu obufanelekile bomgodi.
Inqubo yokuguqula isikhunta kufanele iqale ibambe ukunemba kwesikhunta sokhuni esishintshayo. Ukuze kuqinisekiswe ukunemba, ekuqaleni isihlungi izinkuni isikhunta design ingasetshenziswa ngokusho izinga isikhunta shrinkage ukushiya inani elithile shrinkage imvume. Ngaphezu kwalokho, ukunakekelwa kufanele kukhokhwe ekuguqukeni kobuso besikhunta sokhuni sokulungisa flat, isikhunta sesikhunta sokhuni kufanele sikhishwe. Izibazi kanye nokuncipha kokhuni akuhambisani kuzodala ukuthi isikhunta se-fiberglass sicaba. Gcoba izibazi bese ususa ama-burrs angaphezulu, ingaphezulu lesikhunta sokhuni kufanele likhishwe ukwelashwa kwe-putty, ngokuvamile okudingekayo ukuklwebheka izikhathi ezingu-2-3. Ngemuva kokuthi i-putty selashiwe, sebenzisa i-sandpaper ukupholisha indawo kuze kube yilapho ihlangabezana ngokugcwele nezidingo zokunemba kosayizi nokuma.
Ukukhiqizwa kwesikhunta sokhuni kufanele kuzimisele ukuchitha umzamo, ngoba ngokuvamile, ukunemba kobukhulu be-dimensionalIsikhunta se-FRP ekugcinenikuncike ekunembeni kwesikhunta sokhuni. Ukuze uqinisekise ukuthi isikhunta sepulasitiki esiqinisiwe sengilazi sibushelelezi futhi sihlanzekile, vula isikhunta sepulasitiki esiqinisiwe sengilazi, ungqimba lwejazi lejazi usebenzisa indlela yokufutha kufanelekile.
Ukufafaza i-gelcoat kufanele kunake ukulungisa ukugeleza komoya kwesibhamu, ukuze i-gelcoat resin atomization ifane, ingabonisi izinhlayiya. Isibhamu se-spray kanye nesibhamu kufanele sibe ngaphandle kwesikhunta, ukuze singabangeli ijazi lejeli lendawo, elithinta izinga eliphezulu. Ngemuva kokuthi isendlalelo sejazi le-gel selashiwe, namathisela ubuso obuzwakalayo. Ingaphezulu elizwakalayo kufanele libe ngaphandle kwesikhunta, ukuze lingabangeli ukulengiswa kwe-gelcoat yendawo, kuthinte ikhwalithi ephezulu.
Ngemuva kokuthi isendlalelo sejazi lejeli selaphelisiwe, namathisela indawo ezwakalayo, ingaphezulu elizwakalayo kufanele limbozwe nge-flat, eligoqiwe noma i-lap kumele lisikwe futhi lisikwe. Namathela indawo enhle ezwakalayo, ibhulashi lingacwiliswa enanini elincane le-resin ukuze licwiliswe endaweni ezwakalayo, qaphela ukulawula inani leglue, kokubili ukuze ukwazi ukungena ngokugcwele ku-fiber, kodwa hhayi kakhulu. Okuqukethwe kweglue ephezulu, ibhamuza akulula ukulikhipha, futhi libangela ukuncipha okukhulu kwe-exothermic, okukhulu. Surface wazizwa ungqimba resin ephulukisa ukukhetha Bubbles, pick Bubbles abakwazi ukusika ngokusebenzisa ungqimba ijazi ijazi.
Ngemva kokukha amabhamuza, ukwenza isihlabathi okufanele, susa amabharumu e-fiberglass bese ususa uthuli oluntantayo, namathisela ngesandla u-300g / m² umuzwa wokunqamulela ongewona we-alkali, isikhathi ngasinye kuphela izendlalelo ezi-1 ~ 2 zokunamathisela, okumele zelashwe ngemva kokuphakama kwe-exothermic ngaphambi kokuthi uqhubeke nokunamathisela. Namathisela ukushuba edingekayo, ungakwazi ukubeka ipayipi yethusi, futhi laying insulation core block. Ukushintshashintshashintsha kwengilazi ubuhlalu be-resin putty, njengokubekwa kwe-thermal insulation core block adhesive, okumele kugcwaliswe ngakho igebe phakathi kwe-thermal insulation core block.
Ngemuva kokubeka, i-glass bead putty kufanele isetshenziselwe ukushelela igebe ebusweni be-insulation core block. I-insulation core block layer yokwelapha bese unamathisela izingqimba ezi-3 ~ 4 ze-short cut-cut, unganamathisela uhlaka lwensimbi yesikhunta. Namathisela uhlaka lwamathambo ensimbi, uhlaka lwensimbi olufakwe kuqala ukuze kuqedwe ingcindezi yokushisela, nohlaka lwensimbi kanye negebe phakathi kwesikhunta kufanele ligcwaliswe ukuvimbelaI-FRPisikhunta deformation nge steel skeleton.
Ngemuva kokuthi ucezu lokuqala lwesikhunta selashiwe, isikhunta siyasuswa, umkhawulo wendiza owedlulele uyasuswa, isikhunta sihlanzwa kudoti, bese kusetshenziswa ishidi le-wax. Ubukhulu beshidi le-wax elisetshenzisiwe kufanele bufane futhi ubude kufanele bube buncane. Ishidi le-wax akufanele ligoqwe ngamabhamuza omoya, uma sekunamabhamuza omoya, kufanele lisuswe futhi linamathiselwe kabusha ukuze kuqinisekiswe ubukhulu bomgodi wokubumba. Amalunga e-Lap kufanele asikwe, futhi izikhala phakathi kwamashidi we-wax kufanele zilinganiswe nge-putty noma usimende wenjoloba. Ngemuva kokuthi ishidi le-wax lisetshenziswe, isikhunta sesibili singashintshwa ngendlela efanayo nesikhunta sokuqala. Isikhunta sesibili ngokuvamile senziwa ngemva kokuba i-gelcoat isifuthwe, futhi izimbobo zomjovo nemigodi yokukhipha umoya kufanele kuhlelwe. Phendulela ucezu lwesibili lwesikhunta, kufanele uqale ususe unqenqema olundizayo, ushise izikhonkwane zokumisa kanye namabhawodi wokukhiya, ukuze welapheke ngokuphelele ngemuva kokudilizwa.

3, Ukuhlolwa kwesikhunta kanye nezinyathelo zokulungisa
Ngemva kokubhidliza nokuhlanza, sebenzisa usimende wenjoloba ukukala ubukhulu bomgodi wokubumba. Uma ukushuba nosayizi kungahlangabezana nezidingo, khona-ke ngemuva kokuqedwa kwenqubo yokugaya nokupholisha, isikhunta se-RTM sizophendulwa ngempumelelo futhi singalethwa ekukhiqizeni. Uma ukuhlolwa, ngenxa yokulawulwa okungalungile kwenqubo kanye nezinye izizathu ezibangelwa isikhunta sesikhunta asihlangabezani nezidingo, i-scrap, ukuvula kabusha isikhunta kubuhlungu kakhulu.
Ngokusho kokuhlangenwe nakho kungaba khona amakhambi amabili:
① ukhiphe isikhunta esisodwa, uvule kabusha ucezu;
② ukusetshenziswa kwenqubo ye-RTM ngokwayo ukulungisa izici zesikhunta, ngokuvamile ucezu lwesendlalelo se-gelcoat esibunjiwe esisihliwe, sibekwe phezuingilazi fiber waqinisa impahla, olunye ucezu lwesikhunta lunanyathiselwe eshidini le-wax, i-gelcoat ye-spray, bese umjovo wesikhunta, ukuze welashwe ngemuva kokucubungula isikhunta, ungalethwa ekusetshenzisweni.