Ibikoresho byiza byo mu rwego rwo hejuru ibikoresho bya melamine byerekana ubuhehere hamwe na MDF idafite amazi

MDF ihabwa agaciro kubijyanye nuburinganire bwayo butagira inenge hamwe nubucucike bumwe bumwe butuma igabanya, ikomeza, imiterere kandi igacukura neza, ifata ibisobanuro birambuye byibuze imyanda no kwambara.Ikibaho kumwanya, biragoye gutsinda kubikorwa bifatika, gukora imashini no gutanga umusaruro.MDF nayo irangiza neza kandi ihoraho.Ubuso bwacyo, buringaniye butanga ibisubizo bidasanzwe haba kumurongo, byacapwe neza cyangwa bishushanyije.Umusenyi hamwe nurutonde rwa grits iboneka, ikora neza nubwo ifite ibara ryoroshye cyane hamwe namabara yijimye.Ihame ryimiterere nizindi nyungu zingenzi.Ibyo bivuze kubyimba no kubyimbye bitandukanye bivaho mugihe ukoresheje iki gicuruzwa.Imashini yubukorikori isobanutse mubice bigize mugihe cyumusaruro izagumishwa mubicuruzwa byegeranye bakora.Kwizirika bizashushanya kandi abakoresha amaherezo bazishimira isura nziza kandi isukuye.
Tanga isura nziza, ihamye ifite inenge rwose
Ubwiza buhanitse, imbaraga-zinonosoye fibre hamwe nubucucike buhoraho bwa Ultrastock hitamo bitanga ibiranga byiza byo guca no guhanagura inzira
Ubuso bworoshye busizwe hamwe na 150 grit ya nyuma
Birakwiriye rwose gusiga amarangi, irangi, veneers cyangwa laminates-byose hamwe nibisubizo byiza
Nta nteko isabwa

Igihe kirenze, ijambo "MDF" ryahindutse izina rusange kubibaho byose byumye.MDF mubusanzwe igizwe na 82% fibre yibiti, 9% urea-formaldehyde resin glue, amazi 8%, nigishashara cya paraffin 1%. Ubucucike buri hagati ya 500 na 1.000 kg / m3 (31 na 62 lb / cu ft). Urwego rwubucucike no gutondekanya nkumucyo-, usanzwe-, cyangwa urwego rwinshi rwinshi ni ikosa kandi riteye urujijo.Ubucucike bwibibaho, iyo bisuzumwe bijyanye nubucucike bwa fibre ijya gukora ikibaho, ni ngombwa.Ikibaho kinini cya MDF ku bucucike bwa kg 700-720 kg / m3 (44-45 lb / cu ft) gishobora gufatwa nkubucucike bukabije kubijyanye na fibre fibre fibre, mugihe ikibaho cyubucucike bumwe bukozwe mumibabi ikomeye. bifatwa nkibyo.Ubwihindurize bwubwoko butandukanye bwa MDF bwatewe no gukenera ibintu bitandukanye bikenewe.
Iyo MDF yaciwe, umubare munini wumukungugu urekurwa mukirere.Ubuhumekero bugomba kwambarwa kandi ibikoresho bigacibwa ahantu hagenzurwa no guhumeka.Gufunga impande zerekanwe nigikorwa cyiza cyo kugabanya ibyuka bihumanya bikubiye muri ibi bikoresho.
Ibisigarira bya formehide ikoreshwa cyane muguhuza fibre muri MDF, kandi kwipimisha byagaragaje ko ibicuruzwa bya MDF bisohora forode ya forode yubusa hamwe nibindi binyabuzima bihindagurika bitera ingaruka kumagara yibitekerezo bifatwa nk’umutekano muke, byibuze amezi menshi nyuma yo kubikora.Urea-formaldehyde ni burigihe kurekurwa buhoro buhoro kuva kumpande no hejuru ya MDF.Iyo ushushanya, gutwikira impande zose z'igice cyarangiye ni imyitozo myiza yo gufunga muri forode yubusa.Ibishashara hamwe namavuta birashobora gukoreshwa nkibirangira, ariko ntibikora neza mugushira muburyo bwa forode yubusa.
Niba ibyo byuka bihoraho bya formaldehyde bigera kurwego rwangiza mubuzima busanzwe bwisi ntibiramenyekana neza.Ikibazo cyibanze ni inganda zikoresha fordehide.Nko mu 1987, EPA yo muri Amerika yashyize mu rwego rwa "kanseri ishobora kuba abantu", kandi nyuma y’ubushakashatsi bwinshi, ikigo mpuzamahanga cya OMS gishinzwe ubushakashatsi kuri kanseri (IARC), mu 1995, nacyo cyashyize mu rwego rwa "kanseri y’abantu".Andi makuru no gusuzuma amakuru yose azwi byatumye IARC yerekana ko formaldehyde ari "kanseri izwi ya muntu" ifitanye isano na kanseri yo mu mazuru na kanseri ya nasofaryngeal, ndetse bikaba bishoboka na leukemia muri Kamena 2004.
Ukurikije ibipimo ngenderwaho by’ibicuruzwa mpuzamahanga byangiza ikirere, hakoreshwa ibyiciro bitatu by’iburayi bya fordehide, E0, E1, na E2, hashingiwe ku gupima urugero rw’imyuka yangiza.Kurugero, E0 ishyirwa mubikorwa bifite munsi ya mg 3 ya fordehide kuri buri g 100 ya kole ikoreshwa mububiko bwa firime na pani.E1 na E2 bashyizwe mu rwego rwo kugira 9 na 30 g ya fordehide kuri 100 g ya kole.Hirya no hino kwisi, ibyemezo bihinduka hamwe na labels gahunda zirahari kubicuruzwa bishobora kugaragara neza kurekurwa kwa formaldehyde, nkibya Californiya ishinzwe umutungo w’ikirere.