Ngokuthuthuka okusheshayo komnotho wezwe lami kanye nokuthuthukiswa kwezinga lokuphila kwezakhamuzi zasemadolobheni nezasemaphandleni, sekuphenduke imfashini ethandwayo yokusetshenziswa kokuhlobisa kwangaphakathi nokuvuselela ifenisha.Kodwa-ke, amapaneli asekelwe ngokhuni asetshenziswa kabanzi njengezinto eziyisisekelo ekuhlobiseni kwangaphakathi nezimboni zefenisha, ngakho-ke kunenkinga yokungcola kwe-formaldehyde.Esikhathini esidlule, imali engenayo yezomnotho yabantu yayiphansi, ukuhlobisa okuningi kwangaphakathi kwenziwa kancane kancane, futhi ifenisha yayivame ukubuyekezwa ngenani elincane, ngakho ukungcola kwe-formaldehyde kwakungavelele kakhulu futhi kungabekezelelwa.
Ezinsukwini zamanje, sekujwayelekile ukuthi labo abathuthela endlini entsha benze ukulungisa okuphelele nokuvuselela ifenisha.Ngale ndlela, ukuqoqwa kwe-formaldehyde volatilization kukhula kakhulu, kufinyelela ezingeni elingabekezeleleki, kufaka engozini ngokuqondile indawo yokuhlala yabasebenzisi.Ngenxa yalesi sizathu, ingxabano phakathi komnyango wokuhlobisa nomsebenzisi isibe inkinga yomphakathi, futhi izinto zokusetshenziswa zokuhlobisa noma ifenisha zivela emakethe, futhi ayikho indlela yokuyixazulula.Ngokuthuthukiswa kokuqwashisa ngokuvikelwa kwemvelo emhlabeni wonke, ukungcola okubangelwa igesi ye-formaldehyde sekufinyelele ezingeni okufanele kunakwe.Ngalesi sizathu, isisebenzi sesayensi nezobuchwepheshe senze izinyathelo eziningi futhi sizama ukuzixazulula.Njengokuthuthukisa ifomula enengqondo ye-urea ne-formaldehyde, noma ngisho nokusebenzisa ama-scavengers e-formaldehyde, njll., kodwa akusona isixazululo esiqinile.Ngaphezu kwalokho, izinto zokupakisha zezinto ezithile, njengokudla, itiye, ugwayi, njll., azivumeli ukuba khona kwe-formaldehyde.Esikhathini esidlule, izinkuni zemvelo zazisetshenziswa kakhulu.Ngenxa yokuqaliswa kwenqubomgomo kazwelonke yokuvikela imithombo yamahlathi, ukusetshenziswa kwezinto zokupakisha izinkuni kuvinjelwe.Uma ufuna izinto ezihlukile, amapaneli asekelwe ngokhuni yisinqumo sokuqala.Nokho, kunzima ukukubona ngenxa yokungcoliswa kwe-formaldehyde.Konke lokhu kwenza isidingo samaphaneli asekelwe ngokhuni angangcoli ku-ajenda.Umthombo wokukhululwa kwegesi ye-formaldehyde yi-adhesive esetshenziselwa ukukhiqizwa kwamaphaneli asekelwe ngokhuni - i-urea-formaldehyde resin.Inzuzo enkulu yalolu hlobo lokunamathisela ukuthi umthombo wezinto ezingavuthiwe ziningi, ukusebenza kuhle, intengo iphansi, futhi akukho okuthatha indawo njengamanje.Kodwa-ke, i-urea-formaldehyde resin inqunyelwe inqubo yokuhlanganiswa.Kungakhathaliseki ukuthi ifomula ithuthukiswa kanjani, ukusabela kwamakhemikhali akukwazi ukuphelela.Ngesikhathi sokwenziwa nokusetshenziswa komkhiqizo, kuhlale kunenkinga ye-formaldehyde eyeqile ekhishwe futhi isabele, inani kuphela.Uma inqubo ye-synthesis ibuyela emuva, igesi ye-formaldehyde izokhishwa.Phakathi kwamabhizinisi amaningi ephaneli asekelwe ngokhuni ezweni lakithi, ubuchwepheshe bokwenziwa kwe-urea-formaldehyde resin buphelelwe yisikhathi, ngakho-ke akumangazi ukuthi amaphaneli asekelwe ngokhuni angena emakethe abangela ukungcola okukhulu.Azikho izinhlobo zeglue ezingenayo i-formaldehyde, kodwa umthombo weglue uyashoda noma intengo iyabiza.Ngokusho kokukhiqizwa kwamanje kwamapaneli asekelwe ngokhuni ezweni lami, ukusetshenziswa kwe-adhesive liquid yonyaka kungamathani ayizigidi ezingu-3, okunzima ukuhlangabezana nazo.Futhi i-resin yokwenziwa eshibhe kakhulu ezikhathini zamanje i-urea glue kuphela.
Kunzima ukuvumelanisa ukungqubuzana phakathi kokunciphisa ukungcola, izindleko kanye nomthombo weglue esikhathini esizayo esiseduze.Ngakho-ke, izazi zasekhaya nasemazweni angaphandle zihlola enye indlela, okungukuthi, ukukhiqiza amapaneli asekelwe ngokhuni ngenqubo engena-glue.Eminyakeni engaphezu kwengu-30 edlule, iSoviet Union kanye neCzech Republic baphothula ucwaningo lwethiyori nobuchwepheshe, kanti iCzech Republic nayo yenza ukukhiqizwa okuncane.Angazi ukuthi kungani ngingaqhubekanga nokuyifunda?Mhlawumbe isizathu esiyinhloko ukuthi ubucayi bokungcola akuzange kudonse ukunaka komphakathi ngaleso sikhathi, futhi amandla okushayela okufunwayo alahlekile, ngakho wawungazimisele ukuqhubeka nokwenza ngcono inqubo yokukhiqiza.
Manje ukuqwashisa ngokuvikelwa kwemvelo sekufinyelele ukuphakama okungakaze kubonwe ngaphambili, futhi ngesikhathi esifanayo, ekusebenzeni, abasebenzisi abakwazi ngempela ukukubekezelela.Uma kungenjalo, i-Japan ngeke ikhiqize i-formaldehyde scavenger.Ngakho-ke, izazi zasekhaya nasemazweni angaphandle ziye zanaka kakhulu ucwaningo lwalesi sihloko, zamukela izindlela ezihlukahlukene zobuchwepheshe, futhi zazuza imiphumela ethile ngokulandelana.Kodwa-ke, akekho kubo owakhe umkhiqizo omkhulu ukwenza imikhiqizo ingene emakethe.Ukuthuthukiswa kwamaphaneli asekelwe ngokhuni ngaphandle kweglue kuyindlela ephumelela kakhulu yokuxazulula ukungcoliswa kwemvelo, futhi kuyindlela yokuthuthukiswa.Njengamanje, kunomncintiswano phakathi kokuqanjwa kabusha kwezobuchwepheshe kanye nesikhathi, noma ubani onobuchwepheshe obuthuthuke kakhulu, obulula futhi obulula kakhulu ukubukhangisa uzoba ngowokuqala ukwakha umkhiqizo futhi ahlale emakethe.
Ngokombono we-gluing wokuthi imicu yezitshalo ingakwazi ukuzibamba, okuye kwaqinisekiswa ngabanduleli, ngokuhlolwa okuphindaphindiwe kanye nokwenza kahle okuqhubekayo, ukuphumelela kuye kwenziwa inqubo yokwenza i-non-glue fiberboard.Isihluthulelo sokunqoba ukuthuthukisa ukusebenza kwebhodi le-non-glue nokwenza lula izinqubo zokusebenza Ingasebenzisa umugqa wokukhiqiza we-medium density fiberboard ukukhiqiza i-fiberboard engenaglue ngaphandle kokwenza izinguquko kuyo yonke imishini yokukhiqiza (kuphela imishini yokwenza iglue ayisebenzi).Amandla okusebenza omkhiqizo alingana noma angaphezulu kwalawo ebhodi lezinhlayiyana ezivamile, futhi ukusebenza okungangeni kwamanzi kuyafana nalokho kwe-urea fiberboard.
Njengoba amanzi esetshenziswa "njenge-adhesive", amandla okunamathela phakathi kwemicu aqedwa ngesikhathi sokucindezela okushisayo, ngakho-ke umswakama we-slab uphakeme kunalowo we-slab yokulinganisa, futhi umjikelezo wokucindezela oshisayo kufanele unwetshwe. ukuqinisekisa ukuthi ukusabela kwamakhemikhali kuqedwa ngokugcwele, ngaleyo ndlela kube nomthelela ekukhiqizeni kwasekuqaleni, kodwa akunawo umthelela ekusebenzeni komnotho kwangempela.
1. Ukonga izindleko zokunamathisela kuyinzuzo eqondile futhi kwandisa inzuzo enkulu.
2. Umkhiqizo awunasendlalelo esiqinile, ukugaywa kwesihlabathi okuncane, ukusetshenziswa kwamandla okuncane, ukusetshenziswa kwamandla okuphansi kanye nezindleko zamabhande abrasive.
3. Iningi lamanzi e-slab lidluliselwa emshinini wokunyathelisa ukuze lihwamuke, ukuze ingxenye yokudluliselwa kokushisa kwe-convective ku-dryer iguqulelwe ekudlulisweni kokushisa kokuxhumana, ukusebenza kahle kokushisa kuyathuthukiswa, futhi ukusetshenziswa kwamalahle kuyancishiswa.Lezi izinzuzo ezengeziwe.
Kulezi zinto ezintathu kuphela, ngisho noma umphumela wonyaka wehliswa usuka ku-30,000 m3 kuya ku-15,000 kuya ku-20,000 m3, usengakwazi ukudala inzuzo yezigidi ezingu-3.3 kuya ku-4.4 million yuan ngonyaka (kuye ngokuthi izindleko zeglue).Ngaphezu kwalokho, ngemva kokwehliswa kokuphumayo, izinto zokusetshenziswa kanye nokusetshenziswa kwamandla nakho kuncipha ngo-30% kuya ku-50%, ukulahlekelwa kwemishini kanye nezindleko zokuyilungisa nazo ziyancishiswa, kanye nesamba semali yokusebenza esetshenziswayo nayo iyancipha.Lena inzuzo engaqondile ekhiqizwayo.Ngakho-ke, inzuzo ephelele ayikho ngaphansi komkhiqizo wokuqala, noma iphakeme nakakhulu.Futhi kulula kakhulu ukugcina okukhiphayo kwasekuqaleni, ngoba umthamo wokukhiqiza wemishini yenqubo ngayinye ngaphambi kokuba umshini wokushisa oshisayo ungashintshi, ngakho-ke kungenziwa ngokungeza umshini wokushisa oshisayo kanye nendlela yawo yokuthutha, noma ukushintsha inani lezendlalelo ze cindezela okushisayo .Le mali yokulungisa iyadingeka.
Inzuzo enkulu ye-fiberboard engenaglue ukuqedwa ngokuphelele kwemithombo yokungcola kanye nezindleko eziphansi, futhi ukusetshenziswa kwayo kunganwetshwa nasezintweni zokupakisha zezimpahla ezithile ezingakuvumeli ukungcola.Isici esingokwemvelo se-fiberboard engena-glue: inamathiselwe ngamandla okuzinamathisela akhiqizwa isenzo samakhemikhali samanzi nama-fiber molecules.Izintambo kufanele zithintane eduze, ngaphandle kwalokho ukunamathela kuzoncishiswa, ngakho-ke ukuminyana kuphakeme kune-MDF evamile yobukhulu.Lesi sici asibonakali uma amashidi amancane akhiqizwa.
I-DongguanI-MUMU Woodworking Co., Ltd.ingumkhiqizi nomphakeli wezinto zokwakha zaseShayina ezimunca umsindo.NgiyacelaXhumana nathiukuze uthole ulwazi olwengeziwe!
Isikhathi sokuthumela: Jul-31-2023