Sefani pepala: luso mu losavuta

Kwa nthawi yoyamba pa fyuluta pepala umagwiritsidwa ntchito kuyambira mu China wakale, kumene, chifukwa cha ichi ntchito alipidwa, koma mfundo adayikapo pansi. Panopa umabala zomera ochepa apadera. Ichi ndi chifukwa chakuti fyuluta pepala, ngakhale kuphweka dzikoli likuonekera, ndi chipatso kupanga amene ankachita lonse osiyanasiyana matekinoloje. Kupatula zapansi ndi mapadi, lili ulusi wapadera ndi mankhwala, utoto, ma polima. Sefani pepala ntchito yoyeretsa mafuta, mafuta ndi mpweya ukuyenda mwa injini ya galimoto, mayunitsi mphamvu ndi injini ya ulimi makina. Agwiritsidwa kwa imathandiza mu turbines gasi, compressors mafakitale, magalimoto dizilo sitima. Komanso, pepala Laboratory fyuluta ntchito nkhani makampani chakudya (shuga, mowa ndi vinyo), komanso mafakitale ena.

ukulu uwu waukulu wapadera katundu zakuthupi operekedwa ndi aliyense wa mtundu wake, cholinga mwachindunji cholinga chinachake. Indicators zimadalira zigawo kuyambira ndi zinthu zina ntchito. Choncho technologists ntchito udindo kupanga nkhaniyi kuonetsetsa kuti fyuluta pepala chofanana thupi, makina ndi mankhwala makhalidwe zambiri chilengedwe aukali imene idzagwira ntchito.

Ndondomeko zotsimikizira cholinga cha kukupatsa pore dongosolo lapadera limene amapereka inclusions zozama za extraneous unafunika osasankhidwa mpweya zakumwa. Mu nkhani iyi, fyuluta pepala ayenera ena mphamvu katundu, limene kwakukulukulu kupereka yunifolomu kufalitsidwa kwa ulusi mfundo ndiponso impregnation zochokera nyimbo polima binder. Sayansi ya ulimi wake imakhala magawo atatu: kaphatikizidwe wa CHIKWANGWANI zikuchokera, ndizosowa kuphika, impregnation pepala m'munsi binder polima.

ambiri zigawo zikuluzikulu angagwiritsidwe ntchito pa sitepe yachitatu. Komabe, ambiri mwa copolymers styrene-akiliriki (akiliriki impregnation), phenol utomoni (phenol) ntchito makampani ano. Poyamba pali ubwino. Makamaka mu kupanga pepala impregnated ndi akiliriki palibe zina processing mapazi - kutentha mankhwala, Zosefera amenewa Komanso ankaona wochezeka, umene uli makamaka zofunika pamene mpweya chithandizo. Phenolic impregnation - izi ndi njira miyambo yopangira mfundo makampani magalimoto. Izi zikhoza kugwiritsidwa ntchito mitundu iwiri ya resins (resol kapena novolak) kapena zosakaniza zace. The mwayi waukulu poyerekeza resole novolak ndi yesa phenol okhutira.

The fyuluta pepala angathe kuikidwa pambuyo mankhwala embossing, komanso mu zigawo zingapo, zimene mwina mitundu yosiyanasiyana. Izi padziko ntchito ndi kuchuluka, mphamvu zosiyanasiyana mitundu entrained particles.