Abubuwan buƙatun ingancin fiber na masana'antar fiberboard gabaɗaya an ƙaddara bisa ga nau'in samfur, tsarin samarwa da matsayin kayan aiki.Dangane da ingancin fiber, ana buƙatar filayen da aka keɓe don samun takamaiman yanki na musamman da kyawawan kaddarorin saƙa, kuma suna buƙatar wani yanki na yanki, ƙimar sieve, da magudanar fiber, ƙarancin iska, abubuwan sinadaran, da fiber polymerization.Akwai tsauraran bukatu.Irin su samar da rigar, a cikin aiwatar da gyare-gyare da kuma matsawa mai zafi, ana buƙatar katakon fiber don samun aikin gaggawa da sauƙi.Samar da bushewa yana buƙatar ba kawai haɗakar da zaɓaɓɓu na zaruruwa ba, amma har ma da iska mai kyau na slab.In ba haka ba, shingen da aka kafa na hanyoyin samar da kayayyaki guda biyu za su lalata tsarin shinge kuma suna shafar ingancin samfuran yayin sufuri da matsawa mai zafi.Duk da haka, lokacin da ake samar da ƙananan ƙarancin ƙima ko fiberboard mai laushi, fiber ɗin bazai yuwu a riga an danna shi ba ko kuma a danna shi da sauƙi don bushe shi a cikin jirgi bayan yin katako.Matsayin tsintsiya yana ƙara saƙa da wurin tuntuɓar juna tsakanin filaye da kansu.
(1) Alakar da ke tsakanin ilimin halittar fiber da ingancin samfurin
Dangane da ainihin siffar fiber ɗin, akwai babban bambance-bambance tsakanin albarkatun ƙasa daban-daban.Alal misali, matsakaicin tsayin fiber tracheids na itace coniferous shine 2-3 mm, kuma yanayin rabo shine 63-110;matsakaicin tsayin fiber tracheids da igiyoyi masu tauri na itace mai tsayi shine 0.8-1.3 mm, kuma yanayin yanayin shine 35-110 58;Amma ga albarkatun fiber ciyawa, matsakaicin tsayin fiber tracheids shine kawai 0.8-2.2 mm, yanayin yanayin shine 30-130, kuma abun ciki na sel marasa fiber yana da inganci.
Daga hangen nesa na tsawon fiber da yanayin yanayin, yana da alama cewa fiberboard da aka yi da zaruruwa masu laushi ya fi kyau.Duk da haka, an tabbatar da cewa aikin fiberboard ɗin da aka danna ta duk kayan coniferous ba lallai ba ne mafi kyau.Wannan shi ne saboda kauri na fiber tracheids na kayan coniferous yana da tubular, kuma kaurin bangon tantanin halitta ya fi girman faɗin zaruruwa.Jimlar yankin tuntuɓar ya zama ƙarami.Akasin haka, filayen fiber tracheids, filaye masu tauri, da magudanan itace mai faffaɗar ganye suna da sirara-bangare da siffa mai siffar bandeji, ta yadda wurin da ake tuntuɓar zaruruwa yana da girma, kuma kayan haɗin gwiwar yana da kyau.Fibreboard samfurin tare da babban yawa da ƙarfi.
Ƙarfin da ke tattare da fiber ɗin kansa shima yana da wani tasiri akan ƙarfin samfurin fiberboard.Wani ya taɓa yin amfani da hanyar rini don wuce gwajin lanƙwasa da rashin ƙarfi na katakon fiberboard mai wuya, kuma an lura da shi a ƙarƙashin na'urar hangen nesa, an ga cewa kashi 60% zuwa 70% na fiber guda ɗaya sun lalace.Daga ƙarshen gwajin, an yi imani da cewa ƙarfin da ke tattare da fiber monomer kanta ba shi da wani tasiri a kan ƙarfin fiberboard mai laushi tare da nauyin 0.25-0.4g / cm3.Yana da ƙarin tasiri mai mahimmanci akan ƙarfin fiberboard matsakaici mai yawa tare da yawa na 0.4-0.8g/cm3.Zai sami tasiri mafi girma akan ƙarfin babban katako mai ƙima tare da yawa fiye da 0.9g / cm3.Wannan shi ne saboda ƙarfin da yake da shi na fiber guda ɗaya kansa yana da alaƙa da matsakaicin tsayin sarkar cellulose (wato, matakin polymerization), kuma tsayin daka na fiber guda zai iya kaiwa 40000Pm.Bayan an share zaruruwan kuma an samar da su zuwa faifai, tsarin da ba bisa ka'ida ba yana cikin yanayin tarwatsewa da rashin daidaituwa.Bayan kawar da tasirin wasu dalilai, suna ɗauka cewa matsakaicin tsayin tsayin fiber guda ɗaya shine 20 000 PM, sa'an nan kuma ƙididdigewa bisa ga adadin masu ra'ayin mazan jiya na 40%, fiber guda ɗaya Tsawon karyewar zai iya kaiwa 8 000 Pm.Ana iya ganin cewa alaƙar da ke tsakanin ƙarfin da ke tattare da fiber kanta da ƙarfin samfurin fiberboard.
(2) Alakar da ke tsakanin digiri na rabuwar fiber da ingancin fiberboard
Matsayin rabuwar fiber yana nufin matakin rabuwar fiber bayan defibration, wanda shine al'amari wanda a kaikaice yana nuna ingancin fibers.Mafi kyawun rarrabuwar fiber, mafi girman yanki na musamman na fiber, kuma mafi ƙarancin magudanar ruwa da ƙarancin iska na fiber ɗin.Sabanin haka, mafi kyawun tacewar ruwa da iskar fiber ɗin, amma fiber a wannan lokacin sau da yawa yakan yi kauri kuma takamaiman yanki na fiber ɗin daidai yake da ƙarami.Bayan rabuwar fiber, ƙayyadaddun yanki na fiber ya bambanta da magudanar ruwa.Mafi girman yanki na musamman shine, mafi kyawun zaruruwa, kuma mafi munin magudanar ruwa na fiber shine.Matsayin rabuwar fiber mara kyau m fiber (28 ~ 48 raga) yana da ƙananan juriya na iska, yayin da babban digiri na rabuwar fiber da fiber mai kyau suna da babban yanki na musamman (100 ~ 200 raga), ƙarancin iska mai ƙarfi na fiber, cikawar slab mai kyau, amma babban iska. juriya.Mafi girman yanki na musamman na fiber, ƙaramin ƙarar fiber ɗin, kuma akasin haka.Don haka za'a iya gano cewa tacewa, daɗaɗɗen iska da ƙarar fiber duk suna da ƙayyadaddun dangantaka da matakin rabuwa na fiber.Sabili da haka, ana iya cewa matakin rabuwar fiber shine muhimmiyar alamar ingancin ƙwayar fiber, wanda kai tsaye ya shafi tsarin samar da fiber da ingancin samfurin.Har ila yau, aikin ya tabbatar da cewa a cikin wani yanki, mafi girman digiri na rabuwar fiber, wato, mafi kyawun zaruruwa, mafi kyawun haɗin tsakanin zaruruwan katako, da ƙarfi, juriya na ruwa da yawan samfurin fiberboard. kuma karuwa daidai.
Bugu da ƙari, an kammala daga kwarewa mai amfani cewa ya kamata a sarrafa matakin rabuwar fiber a cikin wani yanki na musamman bisa ga tabbatar da ingancin samfurin bisa ga nau'o'in samfurori da halaye na tsari.
(3) Dangantaka tsakanin ƙimar gwajin fiber da ingancin fiberboard
Siffar fiber, tsayin fiber, da kauri na fiber na nau'ikan albarkatun fiber daban-daban za su sami tasiri daban-daban akan ingancin fiberboard.Hanyar gwada ingancin fiber yawanci shine don amfani da rabuwar fiber (fiber freeness DS da fiber percussion degree SR).Saboda fiber kanta ya bambanta sosai, sau da yawa yana da wahala a nuna ainihin ingancin fiber ta hanyar auna matakin rabuwar zaruruwa kaɗai.Wani lokaci dabi'un 'yanci na zaruruwan biyu suna kama da kamanni, amma tsayin da kauri na zaruruwan sun bambanta.Sabili da haka, an ƙara ta ta hanyar gwada ƙimar fiber sieving don nazarin ingancin fiber ɗin da aka raba.
Ƙimar tantance fiber yana da mahimmanci a cikin ainihin samarwa.Daidaita darajar tantancewar fiber slurry na iya haɓaka sifar fiber da kaddarorin slurry, ta haka inganta ingancin samfuran fiberboard.An dade ana kula da binciken da aka yi kan tasirin ƙimar gwajin fiber akan ingancin fiberboard, kuma an sami tushen fasaha na yau da kullun.Halin halittar fiber ya fi shafar nau'in kayan abu da kuma hanyar rabuwar fiber.Itacen coniferous yana da kyau fiye da zaren itace mai faɗi.Hanyar injiniyoyin sinadarai sun fi hanyar dumama injiniyoyi (wato, hanyar niƙa mai zafi), kuma hanyar inji mai tsabta ta fi tasiri.matalauci.
Dongguan MUMUWoodworking Co., Ltd.Kamfanin kera kayan gini ne na kasar Sin mai daukar sauti.Don Allahtuntube mudon ƙarin bayani!
Lokacin aikawa: Yuli-22-2023
