Lim ntawv: Innovation nyob rau hauv ib tug yooj yim

Rau cov thawj lub sij hawm rau lub lim daim ntawv yog muaj ntaub ntawv pib nyob rau hauv ancient Tuam Tshoj, ntawm chav kawm, rau lub hom phiaj no siv li ib txwm khoom, tab sis lub hauv paus ntsiab lus twb tso cia. Nws tam sim no ua tau tsuas yog ib ob peb tshwj xeeb cov nroj tsuag. Qhov no yog vim lub fact tias lub lim daim ntawv, txawm nws muaj khees simplicity, yog ib yam khoom rau zus tau tej cov uas muab kev koom tes rau ib chav tseem technologies. Tsuas yog cov cellulose bases, nws muaj tshwj xeeb fibers thiab cov tshuaj, dyes, polymers. Lim ntawv siv rau lub purification ntawm cov roj, roj thiab cua ntws nyob rau hauv lub tsheb tshuab, hwj chim rau lwm thiab xyaw rau ua liaj ua teb machinery. Nws siv rau filtering nyob rau hauv roj turbines, industrial compressors, diesel railway tsheb. Nyob rau hauv tas li ntawd, lub Kuaj lim daim ntawv yog siv rau cov analyses nyob rau hauv lub lag luam ua noj (qab zib, npias thiab cawv txiv hmab, thiab), raws li zoo raws li nyob rau hauv lwm yam industries.

Qhov no sab uas muaj lub cim thaj chaw ntawm cov ntaub ntawv uas muab los ntawm txhua yam ntawm nws siab zoo, tsim los rau ib tug lub hom phiaj. Indicators nyob ntawm seb lub pib lub Cheebtsam thiab ntxiv siv tej yam kev mob. Yog li ntawd technologists ua hauj lwm lub luag hauj lwm rau zus tau tej cov no cov ntaub ntawv uas los xyuas kom meej tias cov lim daim ntawv corresponded rau lub cev, cov neeg kho tshuab thiab tshuaj cov yam ntxwv feem ntau txhoj puab heev puag ncig nyob rau hauv uas nws yuav tsum muaj ntaub ntawv.

Txheej txheem rau manufacturing ib lub hom phiaj uas muab nws ib lub pore qauv uas muab lub sib sib zog nqus inclusions ntawm extraneous phiaj lim gases thiab kua. Nyob rau hauv cov ntaub ntawv no, lub lim daim ntawv yuav tsum muaj ib tug ib lub zog zog, uas yeej muab rau nws ib yam tis ntawm cov fibers nyob rau hauv cov khoom thiab sib sib zog nqus impregnation raws li nyob rau hauv polymer phau ntawv compositions. Cov cuab yeej ntawm nws cov muaj peb tej theem: lub synthesis ntawm cov fiber muaj pes tsawg leeg, ua noj ua haus qhia, impregnation ntawv puag phau ntawv polymer.

ib tug loj tus naj npawb ntawm Cheebtsam yuav siv tau rau lub thib peb kauj ruam. Txawm li cas los, feem ntau ntawm cov styrene-acrylic copolymers (acrylic impregnation), phenol cob (phenol) yog siv nyob rau hauv niaj hnub kev lag luam. Thaum xub thawj muaj ib tug xov tooj ntawm zoo. Nyob rau hauv kev, nyob rau hauv qhov siv thiab ua daim ntawv impregnated nrog acrylic tsis muaj ntxiv ua kauj ruam - Thaum tshav kub kub kev kho mob, xws cov ntxaij lim dej kuj xam tau tias yog tus phooj ywg environmentally, uas yog tshwj xeeb tshaj yog ib qho tseem ceeb thaum huab cua kev kho mob. Phenolic impregnation - qhov no yog txoj cai hauv txoj kev uas ua cov khoom siv rau lub automotive kev lag luam. Qhov no tej zaum yuav siv ob hom resins (resol los yog novolak) los yog mixtures thereof. Lub ntsiab kom zoo dua piv rau novolak resole yog tsawg free phenol cov ntsiab lus.

Lub lim daim ntawv yuav tsum tau ntsia tom qab lub embossing kev kho mob, raws li tau zoo raws li nyob rau hauv ob peb txheej, uas tej zaum yuav ntau hom. Qhov no ua hauj lwm nto zog, lub zog, ntau yam ntawm hom entrained hais.