Ikhwalithi ephezulu yangokwezifiso ifenisha yefenisha ye-melamine ubufakazi bomswakama kanye ne-MDF engenamanzi

I-MDF ibaluleke kakhulu ngokwakheka kwayo okungenasici kanye nokuminyana okufanayo okuyivumela ukusika, ukuzulazula, ukubumba nokubhoboza ngokuhlanzekile, ibambe imininingwane eyinkimbinkimbi enobuncane bemfucuza kanye nokuguga kwamathuluzi.Iphaneli yephaneli, kunzima ukuyihlula ngokusebenza kahle kwezinto, ukusebenza komshini kanye nokukhiqiza.I-MDF ibuye iqede kahle futhi ingaguquki.Indawo yayo eyisicaba, ebushelelezi iletha imiphumela ehlukile kungakhathaliseki ukuthi i-laminated, iphrintiwe ngokuqondile noma ipendiwe.Ifakwe isihlabathi ngezinhlobonhlobo zamagrits atholakalayo, isebenza kahle ngisho noma kunembondela encane kakhulu nemibala kapende omnyama.Ukuzinza kwe-Dimensional kungenye inzuzo ebalulekile.Lokho kusho ukuthi ukuhluka kokuvuvukala nokuqina kuyaqedwa uma usebenzisa lo mkhiqizo.Umshini wezingcweti onembayo ezingxenyeni zabo zezingxenye ngesikhathi sokukhiqiza uzogcinwa kumkhiqizo ohlanganisiwe abawukhiqizayo.Ama-fasteners azosondelana futhi abasebenzisi bazojabulela ukulingana okunembile nokubukeka okuhlanzekile.
Inikeza ubuso obushelelezi, obuvumelanayo obungenasici ngokuphelele
Ikhwalithi ephezulu, i-high-energy-refined fibers kanye nokuminyana okungaguquki kokukhetha kwe-Ultrastock kunikeza izici ezifanele zokusika nokuhlanzwa komzila.
Indawo ebushelelezi epholishwe ngokuqedwa kokugcina kwegrit engu-150
Ifaneleke ngokuphelele opende, amabala, ama-veneers noma ama-laminates-konke kunemiphumela emihle kakhulu
Akukho ukuhlanganisa okudingekayo

Ngokuhamba kwesikhathi, igama elithi "MDF" seliphenduke igama elijwayelekile lanoma iyiphi ibhodi ye-fiber yenqubo eyomile.I-MDF ngokuvamile yenziwe nge-wood fiber engu-82%, 9% weglue ye-urea-formaldehyde resin, u-8% wamanzi, kanye ne-wax kapharafini engu-1%. Ububanzi bokuminyana nokuhlukaniswa njengebhodi elilula, elijwayelekile, noma eliminyanisa kakhulu igama elingelona iqiniso futhi liyadida.Ukuminyana kwebhodi, lapho kuhlolwa maqondana nokuminyana kwefiber engena ekwenzeni iphaneli, kubalulekile.Iphaneli ye-MDF ewugqinsi enokuminyana okungama-700–720 kg/m3 (44–45 lb/cu ft) ingase ibhekwe njengokuminyana okuphezulu uma kwenzeka kumaphaneli e-softwood fiber, kuyilapho iphaneli yokuminyana efanayo eyenziwe ngemicu yokhuni oluqinile ingekho. kuthathwa kanjalo.Ukuvela kwezinhlobo ezahlukahlukene ze-MDF kuye kwaqhutshwa isidingo esihlukile sezinhlelo zokusebenza ezithile.
Lapho i-MDF isikwa, inani elikhulu lezinhlayiya zothuli lidedelwa emoyeni.Umshini wokuphefumula kufanele ugqokwe futhi insimbi isikwe endaweni elawulwayo nengenisa umoya.Ukuvala imiphetho eveziwe kuwumkhuba omuhle ukukhawulela ukukhishwa kwezibophelelo eziqukethwe yile nto.
Ama-formaldehyde resins avame ukusetshenziselwa ukuhlanganisa ndawonye imicu ku-MDF, futhi ukuhlolwa kuye kwembula ngokungaguquki ukuthi imikhiqizo ye-MDF ikhipha i-formaldehyde yamahhala nezinye izinhlanganisela eziphilayo eziguquguqukayo ezibeka ubungozi bezempilo ekugxilweni okubhekwa njengokungaphephile, okungenani izinyanga ezimbalwa ngemva kokukhiqizwa. I-Urea-formaldehyde njalo ikhishwa kancane kancane emaphethelweni nangaphezulu kwe-MDF.Uma udweba, ukumboza zonke izinhlangothi zesiqeshana esiqediwe kuwumkhuba omuhle ukuvala i-formaldehyde yamahhala.Ukuqedwa kwe-wax namafutha kungasetshenziswa njengokuqedwa, kodwa akuphumelelanga kangako ekuvaleni ku-formaldehyde yamahhala.
Ukuthi lokhu kukhishwa okuqhubekayo kwe-formaldehyde kufinyelela emazingeni ayingozi ezindaweni zomhlaba wangempela akukacaciswa ngokugcwele yini.Ukukhathazeka okuyinhloko yizimboni ezisebenzisa i-formaldehyde.Kusukela ngo-1987, i-US EPA yawuchaza ngokuthi "i-carcinogen engenzeka yabantu", futhi ngemva kocwaningo olwengeziwe, i-WHO International Agency for Research on Cancer (IARC), ngo-1995, nayo yayichaza ngokuthi "i-carcinogen engenzeka yomuntu".Ulwazi olwengeziwe nokuhlolwa kwayo yonke imininingwane eyaziwayo kuholele ekutheni i-IARC iphinde ihlukanise i-formaldehyde "njenge-carcinogen yomuntu eyaziwayo" ehlotshaniswa nomdlavuza wamakhala kanye nomdlavuza we-nasopharyngeal, futhi ngokunokwenzeka ne-leukemia ngoJuni 2004.
Ngokuvumelana ne-International Composite Board Emission Standards, kusetshenziswa amakilasi amathathu e-European formaldehyde, i-E0, i-E1, ne-E2, ngokusekelwe esilinganisweni samazinga wokuphuma kwe-formaldehyde.Isibonelo, i-E0 ihlukaniswa ngokuthi ine-formaldehyde engaphansi kuka-3 mg kuwo wonke ama-100 g weglue esetshenziswa ekwenziweni kwe-particleboard kanye ne-plywood.I-E1 ne-E2 zihlukaniswa njengezino-9 no-30 g we-formaldehyde ku-100 g weglue, ngokulandelana.Emhlabeni wonke, izitifiketi eziguquguqukayo nezikimu zokulebula zikhona zemikhiqizo enjalo engaba sobala ekukhishweni kwe-formaldehyde, njengaleyo ye-Californian Air Resources Board.