Ndi chitukuko chofulumira chachuma cha dziko langa komanso kupititsa patsogolo moyo wa anthu okhala m'matauni ndi akumidzi, zakhala njira yodziwika bwino yopangira zinthu zokongoletsa mkati ndikukonzanso mipando.Komabe, mapanelo opangidwa ndi matabwa amagwiritsidwa ntchito kwambiri ngati zida zoyambira pakukongoletsa mkati ndi mafakitale amipando, chifukwa chake pali vuto la kuipitsa kwa formaldehyde.M'mbuyomu, ndalama zachuma za anthu zinali zochepa, zokongoletsa zambiri zamkati zinkangochitika pang'ono, ndipo mipando nthawi zambiri inkasinthidwa pang'ono, kotero kuipitsa kwa formaldehyde sikunali kodziwika kwambiri ndipo kukanakhoza kulekerera.
Masiku ano, ndizofala kwambiri kwa iwo omwe amasamukira m'nyumba yatsopano kuti akonzenso bwino komanso kukonza mipando.Mwanjira iyi, kudzikundikira kwa formaldehyde volatilization kumawonjezeka kwambiri, kufika pamlingo wosapiririka, ndikuyika pachiwopsezo chamoyo cha ogwiritsa ntchito.Pachifukwa ichi, mkangano pakati pa dipatimenti yokongoletsera ndi wogwiritsa ntchito wakhala vuto la anthu, ndipo zopangira zokongoletsera kapena mipando zimachokera kumsika, ndipo palibe njira yothetsera.Ndi kusintha kwa chidziwitso cha chitetezo cha chilengedwe padziko lonse lapansi, kuipitsidwa kwa mpweya wa formaldehyde kwafika pamlingo womwe uyenera kutsatiridwa.Pachifukwa ichi, wogwira ntchito zasayansi ndi zamakono apanga njira zambiri ndikuyesera kuthetsa.Monga kukonza njira yoyenera ya urea ndi formaldehyde, kapena kugwiritsa ntchito formaldehyde scavengers, etc., koma si njira yothetsera.Kuphatikiza apo, zida zopangira zinthu zina, monga chakudya, tiyi, ndudu, ndi zina zotere, sizilola kukhalapo kwa formaldehyde.Kale, nkhuni zachilengedwe zinkagwiritsidwa ntchito kwambiri.Chifukwa cha kukhazikitsidwa kwa ndondomeko ya dziko yoteteza chuma cha nkhalango, kugwiritsa ntchito zipangizo zopangira matabwa kwaletsedwa.Poyang'ana zipangizo zina, mapanelo opangidwa ndi matabwa ndi chisankho choyamba.Komabe, ndizovuta kuzindikira chifukwa cha kuipitsa kwa formaldehyde.Zonsezi zimapangitsa kuti pakhale kufunikira kwa "mapanelo opangira matabwa obiriwira" opanda kuipitsidwa.Gwero la kutulutsa mpweya wa formaldehyde ndi zomatira zomwe zimagwiritsidwa ntchito popanga mapanelo opangidwa ndi matabwa - urea-formaldehyde resin.Ubwino waukulu wa zomatira zamtunduwu ndikuti gwero lazinthu zopangira ndizochulukirapo, magwiridwe antchito ndi abwino, mtengo wake ndi wotsika, ndipo palibe choloweza m'malo pakali pano.Komabe, urea-formaldehyde utomoni ndi malire ndi kaphatikizidwe ndondomeko.Ziribe kanthu momwe chilinganizocho chiwongoleredwera bwino, zotsatira za mankhwala sizingakhale zangwiro.Pakupanga ndi kugwiritsa ntchito mankhwala, nthawi zonse pamakhala vuto la owonjezera formaldehyde kumasulidwa ndi kuchitapo kanthu, kokha kuchuluka.Ngati kaphatikizidwe kakubwerera m'mbuyo, mpweya wochulukirapo wa formaldehyde udzatulutsidwa.Mwa mabizinesi ambiri opangira matabwa m'dziko lathu, ukadaulo wopangira urea-formaldehyde utomoni ndi wachikale kwambiri, kotero sizosadabwitsa kuti mapanelo opangira matabwa omwe amalowa pamsika amayambitsa kuipitsa kwakukulu.Palibe zomatira zopanda formaldehyde, koma gwero la guluu ndilosowa kapena mtengo wake ndi wokwera mtengo.Malinga ndi kupanga kwamakono mapanelo opangidwa ndi matabwa m'dziko langa, kumwa zomatira zamadzimadzi pachaka kumakhala pafupifupi matani 3 miliyoni, zomwe zimakhala zovuta kukumana nazo.Ndipo utomoni wotchipa kwambiri wopangira masiku ano ndi guluu wa urea okha.
Ndizovuta kugwirizanitsa kutsutsana pakati pa kuchepetsa kuipitsidwa, mtengo ndi gwero la glue posachedwa.Choncho, akatswiri kunyumba ndi kunja akufufuza njira ina, ndiko kuti, kupanga mapanelo opangidwa ndi matabwa ndi ndondomeko yopanda guluu.Zaka zoposa 30 zapitazo, Soviet Union ndi Czech Republic anamaliza kufufuza kuthekera kwa chiphunzitso ndi teknoloji, ndipo Czech Republic inapanganso ntchito zazing'ono.Sindikudziwa chifukwa chake sindinapitirize kuliphunzira?Mwina chifukwa chachikulu ndi chakuti kuopsa kwa kuipitsa sikunakope chidwi cha anthu panthawiyo, ndipo mphamvu yoyendetsera ntchitoyo inatayika, choncho sichinali chofuna kupititsa patsogolo ntchito yopanga.
Tsopano kuzindikira kwa chitetezo cha chilengedwe kwafika pamtunda wosayerekezeka, ndipo panthawi imodzimodziyo, pochita, ogwiritsa ntchito sangathe kupirira.Apo ayi, Japan sakanatulutsa formaldehyde scavenger.Chifukwa chake, akatswiri akunyumba ndi akunja apereka chidwi kwambiri pakufufuza kwa mutuwu, adatengera njira zosiyanasiyana zamaukadaulo, ndikupeza zotsatira zina motsatana.Komabe, palibe amene wapanga zokolola zazikulu kuti zinthu zilowe mumsika.Kupanga mapanelo opangidwa ndi matabwa opanda guluu ndiyo njira yabwino kwambiri yothetsera kuwononga chilengedwe, komanso ndi chitukuko cha chitukuko.Pakalipano, pali mpikisano pakati pa luso lamakono ndi nthawi, aliyense amene ali ndi luso lapamwamba kwambiri, losavuta komanso losavuta kupititsa patsogolo adzakhala woyamba kupanga zokolola ndikukhala pamsika.
Malinga ndi chiphunzitso cha gluing chakuti ulusi wa zomera ukhoza kudzimatira, zomwe zatsimikiziridwa ndi akale, kupyolera mu mayesero obwerezabwereza ndi kukhathamiritsa kosalekeza, kupambana kwapangidwa popanga fiberboard yopanda glue.Chinsinsi chogonjetsera ndikuwongolera magwiridwe antchito a bolodi yopanda glue ndikuchepetsa njira zogwirira ntchito Itha kugwiritsa ntchito chingwe chopangira kachulukidwe kachulukidwe ka fiberboard kuti ipange fiberboard yopanda glue popanda kusintha zida zonse zopangira (zida zopangira guluu zokha). sagwiritsidwa ntchito).Mphamvu yamakina ya chinthucho ndi yofanana kapena yokwera kuposa ya particleboard wamba, ndipo magwiridwe antchito osalowa madzi ndi ofanana ndi a urea fiberboard.
Popeza madzi amagwiritsidwa ntchito ngati "zomatira", mphamvu yodzimatira pakati pa ulusi imatsirizidwa panthawi yotentha, kotero kuti chinyezi cha slab ndichokwera kuposa cha sing slab, ndipo kutentha kwapakati kuyenera kukulitsidwa. kuonetsetsa kuti zochita za mankhwala zatha mokwanira, potero zimakhudza zokolola zoyambirira, koma zilibe mphamvu pazochitika zenizeni zachuma.
1. Kupulumutsa ndalama zomatira ndizopindulitsa mwachindunji ndikuwonjezera phindu lonse.
2. Mankhwalawa alibe wosanjikiza wokhazikika, mchenga wocheperako, kugwiritsa ntchito mphamvu zochepa, komanso kugwiritsa ntchito mphamvu zochepa komanso ndalama zowononga lamba.
3. Madzi ambiri mu slab amasamutsidwa ku makina osindikizira kuti asungunuke, kotero kuti gawo la convective kutentha kutengerapo mu chowumitsira kumasinthidwa kukhala kukhudzana ndi kutentha kwa kutentha, kutentha kwa kutentha kumakhala bwino, ndipo kugwiritsa ntchito malasha kumachepetsedwa.Izi ndizowonjezera phindu.
Pazinthu zitatuzi zokha, ngakhale kutulutsa kwapachaka kumachepetsedwa kuchokera ku 30,000 m3 mpaka 15,000 mpaka 20,000 m3, kumatha kupanga phindu la 3.3 miliyoni mpaka 4.4 miliyoni yuan pachaka (malingana ndi mtengo wa guluu).Kuphatikiza apo, zotulutsazo zitachepetsedwa, zida zopangira ndi kugwiritsa ntchito mphamvu zimachepetsedwanso ndi 30% mpaka 50%, kutayika kwa zida ndi kukonza ndalama kumachepetsedwa, ndipo ndalama zonse zogwirira ntchito zimachepetsedwa.Uwu ndiye phindu losalunjika lomwe limapangidwa.Choncho, phindu lonse silili locheperapo kusiyana ndi choyambirira, kapena kuposa.Komanso n'zosavuta kwambiri kukhala linanena bungwe choyambirira, chifukwa mphamvu kupanga aliyense ndondomeko zipangizo pamaso atolankhani otentha sanasinthe, kotero izo zikhoza kuchitika mwa kuwonjezera otentha atolankhani ndi limagwirira ake zoyendera, kapena kusintha chiwerengero cha zigawo za hot press .Ndalama zokonzanso izi ndizofunikira.
Ubwino waukulu wa glueless fiberboard ndikuchotsa kwathunthu kwa magwero oyipitsidwa ndi mtengo wotsika, ndipo kugwiritsidwa ntchito kwake kumatha kuwonjezeredwa kuzinthu zolongedza zinthu zina zomwe sizimalola kuipitsa.Kuwonongeka kwachilengedwe kwa boardless fiberboard: kumamatira ndi mphamvu yodzimatira yokha yopangidwa ndi mamolekyu amadzi ndi fiber.Ulusiwo uyenera kukhala wolumikizana kwambiri, apo ayi zomatira zidzachepetsedwa, kotero kuti kachulukidwe kake ndi kapamwamba kuposa kakulidwe ka MDF wamba.Chilemachi sichimawonekera ngati mapepala owonda apangidwa.
DongguanMalingaliro a kampani MUMU Woodworking Co., Ltd.ndi wopanga zida zomangira zaku China zomwe zimamva mawu komanso ogulitsa.ChondeLumikizanani nafekuti mudziwe zambiri!
Nthawi yotumiza: Jul-31-2023