Polyurethane Foaming Tus Neeg Sawv Cev
Polyurethane ua npuas ncauj tus neeg sawv cev yog cov khoom ntawm kev sib xyaw ua ke ntawm aerosol thev naus laus zis.Yog muaj ob hom neeg sawv cev hauv kev tsim cov microcellular ua npuas. Feem ntau nws tuaj yeem faib ua ob hom: Hom hom lub cev thiab hom tshuaj. Qhov no yog ua raws li cov roj yog lub cev nqaij daim tawv (volatilization lossis sublimation) lossis cov txheej txheem tshuaj lom neeg (kev rhuav tshem cov qauv tshuaj lom neeg lossis lwm yam tshuaj lom neeg)
Hmong npe
PU npaus
Tej txuj ci tshiab
AEROSOL Tshuab thiab Polyurethane Npuas Tshuab
Hom
Raj hom thiab rab phom hom
Lub hauv paus rau phau ntawv
Polyurethane foaming Tus neeg sawv cev tag nrho lub npe ib-sib xyaw polyurethane ua npuas ncauj. Lwm lub npe: Ua npuas ncauj rau tus neeg saib xyuas, styrofoam, hu ua foob. Lus Askiv PU ua npuas ncauj yog cov khoom ntawm kev sib xyaw ua ke ntawm aerosol technology thiab polyurethane ua npuas ncauj thev naus laus zis. Nws yog cov khoom lag luam polyurethane tshwj xeeb nyob rau hauv uas cov khoom sib xyaw xws li polyurethane prepolymer, thiab catalyst tau sau rau hauv lub siab-resistant aerosol tau. Thaum cov khoom tau muab txau los ntawm Aerosol Tank, cov ua npuas ncauj zoo li cov khoom siv polyurethane yuav nthuav dav thiab ua rau cov huab cua nrawm los ua npuas dej. Nws muaj qhov zoo ntawm pem hauv ntej foaming, muaj qhov loj me, me me shrinkage, thiab lwm yam muaj lub zog zoo thiab lub zog zoo. Tus ua npuas dej yuav muaj ntau yam xws li caulking, lub rwb thaiv tsev, lub zog cua sov, txuag hluav taws xob thiab siv tau cov khoom siv tsev. Nws tuaj yeem siv rau kev sib khi thiab ntsaws, txhaws cov khoob, txuag thiab tawv ncauj ntawm cov tog cua yas lossis cov tshuab cua sov thiab lub qhov rooj thiab phab ntsa.
Kev Qhia Ua Tau Zoo
Feem ntau, lub sijhawm ziab sab yog li 10 feeb (hauv qab chav nyob deb 20 ° C) .Qhov tag nrho qhuav lub sijhawm sib txawv nrog huab cua sov thiab av noo. Nyob rau hauv ib txwm muaj xwm txheej, tag nrho lub sijhawm qhuav nyob rau lub caij ntuj sov yog li ntawm lub caij ntuj no.Thaum kev kwv yees lub neej yuav tsis pub dhau 10 xyoo. Cov npuas dej kho tau zoo tswj tau zoo elasticity thiab adhesion hauv qhov kub thiab txias ntawm -10 ℃ ~ 80 ℃. Cov ua npuas ncauj kho tau muaj cov haujlwm ntawm caulking, forning, sequing, thiab lwm yam, nplaim taws-retardant polyurethane foaming polyurethane foaming polyurethane foaming polyurethane ua npuas ncauj
Ib yam uas tab kaum
1. Polyurethane ua npuas ncauj caulking tus neeg sawv cev, qhov ntsuas kub siab, nws yuav ntws, thiab kev ruaj khov yog tsis zoo. Tsis ruaj khov raws li polyurethane rigid ua npuas ncauj.
2. Polyurethane Ua npuas dej yog qeeb heev, cov chaw tsim khoom loj tsis tuaj yeem nqa tawm, lub tiaj tiaj tsis tuaj yeem tswj tau, thiab ua npuas dej zoo yog tsis zoo.
3. Polyurethane Ua npuas dej Fealant, kim
Daim ntawv thov
1. Lub qhov rooj thiab qhov rai teeb tsa: kev txhim kho, kho thiab sib koom tes ntawm lub qhov rooj thiab lub qhov rais thiab phab ntsa.
2. Kev tshaj tawm qauv: qauv, cov rooj xuab zeb ntau lawm, kev teeb tsa chaw ua haujlwm kho
3. Soundproofing: Sau cov khoob hauv kev kho kom zoo nkauj thiab chav tshaj tawm hauv chav ua si thiab cov nyhuv ntsiag to.
4. Kev Ua Teb: Paj Yeeb, Ua Vaj Ua Vaj Tsev thiab Kev Tsim Kho Vaj Tsev, Lub Teeb thiab Zoo Nkauj
5. Niaj Hnub Tu: Kho ntawm cov kab ke, cov vuas, phab ntsa phab ntsa, cov vuas hauv av, thiab cov plag tsev
6. Waterproof ntsaws: Kho thiab ntsaws cov kav dej hauv dej kav dej, cov dej phwj tuaj, thiab lwm yam.
7. Cov Packing thiab Xa Khoom: Nws tuaj yeem qhwv cov txiaj ntsig zoo thiab tsis txaus, txuag lub sijhawm thiab nrawm, kev xav tsis thoob
Cov lus qhia
1. Ua ntej kev tsim kho, roj stains thiab ntab plua plav ntawm cov kev tsim kho yuav tsum tau muab tshem tawm, thiab ib qho me me ntawm cov dej yuav tsum tau txau ntawm kev tsim kho.
2. Ua ntej siv, co lub polyurethane ua npuas ncauj ua npuas ncauj rau tus neeg sawv cev rau tsawg kawg 60 vib nas this los xyuas kom meej tias cov ntsiab lus ntawm lub tank yog ib yam nkaus.
3. Yog tias rab phom-hom pyurethane ua npuas ncauj tus neeg sawv cev, tig lub tank upside in dail xov, thiab kho cov ntws tawm, thiab kho cov ntws ua ntej txau. If tube type polyurethane foaming agent is used, screw the plastic nozzle on the valve thread, align the plastic pipe with the gap, and press the nozzle to spray.
4. Ua tib zoo saib mus rau txoj kev taug kev ncig thaum nqus dej, feem ntau ntawm kev txhaj tshuaj tuaj yeem yog ib nrab ntawm cov khoom ntim. Sau cov kab ntsug los ntawm hauv qab mus rau saum.
5. Thaum sau gaps xws li ceilings, tus ua npuas ncauj yuav poob vim lub ntiajteb txawj nqus. Nws raug nquahu kom muab kev txhawb nqa kom tsim nyog tam sim ntawd tom qab sau, thiab tom qab ntawd rho tawm kev txhawb nqa tom qab cov npaus tau kho thiab sib khi ntawm phab ntsa ntawm qhov sib txawv.
6. Cov npaus yuav tau mus debonded nyob rau 10 feeb, thiab nws tuaj yeem txiav tom qab 60 feeb.
7.
8. Nyhav cov foaming tus neeg sawv cev raws li cov kev xav tau kev ua haujlwm, ntxiv 80 zaug ntawm cov dej ntshiab kom ua kom cov kua ua npuas ncauj; Tom qab ntawd siv lub tshuab foaming kom ua npuas dej ua npuas dej, thiab tom qab ntawd ntxiv cov ntses sib xyaw ua ke raws li cov khoom ua kom zoo nkauj ua ke raws li cov khoom siv magnivitary raws li kev sib sau tshuab lossis pwm rau kev sib sau.
Siv Ntawv Sau:
Qhov kev siv ntsuas kub ib txwm muaj ntawm polyurethane ua npuas ncauj tus neeg sawv cev ank yog + 5 ~ + 40 ℃, kev siv kub zoo tshaj + 18 ~ + 25 ℃. Nyob rau hauv cov ntaub ntawv ntawm tsawg kub, nws pom zoo kom tso cov khoom no ntawm qhov kub tsis tu ncua ntawm kev kho npuas dej yog -35 ℃ ~ + 80 ℃.
Polyurethane ua npuas ncauj tus neeg sawv cev yog noo noo-kho npuas dej. Nws yuav tsum tau muab txau rau ntawm qhov chaw ntub dej thaum siv. Qhov siab dua cov av noo, nrawm dua consing.uncured ua npuas yeej tuaj yeem ntxuav nrog cov neeg sawv cev tu, thaum lub sij hawm kho npuas dej yuav tsum tau muab tshem tawm cov txheej txheem tshuab (sanding lossis txiav). Lub npaus cured yuav tig daj tom qab raug hluav taws xob tsis muaj teeb ci. Nws raug nquahu kom lub tsho tiv no ntxuav ua npuas ncauj nrog lwm cov ntaub ntawv (xis hmoov cug, pleev xim, thiab lwm yam). Tom qab siv rab phom txau, thov ntxuav nws nrog tus neeg saib xyuas tu kom huv tam sim ntawd.
Thaum hloov lub tank, co lub tank tank zoo (co yam tsawg kawg 20 zaug), tshem tawm lub tank khoob, thiab hloov kho rab phom txau tshiab los ntawm kev sib txuas.
Cov Flow Tswj Valve thiab ua rau cov tshuaj tsuag dej txau tuaj yeem tswj qhov loj me ntawm cov npuas dej ntws. Thaum kev txhaj tshuaj nres, tam sim ntawd kaw lub valve valve nyob rau hauv ib tug clockwise kev coj.
Kev ceev faj kev nyab xeeb
Cov ua npuas ncauj tsis zoo yog cov tawv nqaij thiab khaub ncaws. Tsis txhob kov koj cov tawv nqaij thiab khaub ncaws thaum siv. Polyurethane ua npuas ncauj tus neeg sawv cev ank muaj lub siab ntawm 5-6kg / cm2 (25 ℃), thiab qhov kub), thiab qhov kub yuav tsum tsis pub dhau 50 ℃ thaum lub sijhawm cia thiab tsheb thauj mus los tiv thaiv kev tawg ntawm lub tank.
Polyurethane ua npuas ncauj ua npuas ncauj tso cai saib xyuas cov neeg zov menyuam yuav tsum muaj kev tiv thaiv los ntawm tshav ntuj ncaj qha thiab cov menyuam yaus raug txwv tsis pub muaj. Kev tso tsheb hlau luam khoob tom qab siv, tshwj xeeb tshaj yog siv cov polyurethane ua npuas ncauj tso tsheb hlau luam uas tsis tau siv, yuav tsum tsis txhob siv littered. Nws yog txwv tsis pub hlawv los yog puncture qab tso tsheb hlau luam.
Khaws kom deb ntawm kev qhib cov nplaim taws thiab tsis hu nrog cov khoom siv phom thiab tawg.
Lub chaw tsim kho yuav tsum tau txhaj tshuaj, thiab cov ua haujlwm tsim kho yuav tsum hnav hnab looj tes, txhua yam thiab goggles thaum tsim kho, thiab tsis haus luam yeeb.
Yog tias ua npuas ncauj kov lub qhov muag, thov yaug nrog dej ua ntej mus tom tsev kho mob rau kev kho mob; Yog tias nws chwv cov tawv nqaij, yaug nrog dej thiab xab npum
Txheej txheem ua npuas dej
1. Npaj ua ntej
Cov txheej txheem ua ntej polymer yog los ua (cov khoom siv dawb) thiab tom qab ntawd surfactant, thiab tom qab ntawd lwm yam ntxiv rau cov pre-polymer, thiab sib tov hauv qab-ceev stirring. Soak, tom qab kho tus kheej, nws tuaj yeem kho tau ntawm qhov kub thiab txias
2. Semi-Prepolymer txoj kev
Cov txheej txheem ua npuas ncauj ntawm cov qauv kev ua haujlwm ib nrab yog los ua ib feem ntawm cov khoom siv Polyether, thiab lwm yam ntxiv) thiab lwm yam ntxiv) thiab lwm yam ntxiv thiab sib xyaw ua ke kom ua npuas dej.
3. Ib-qib ua npuas ncauj txheej txheem
Ntxiv Polyether lossis Polyester Polyol (Cov Khoom Siv Dawb) thiab Polyisocyanst, thiab lwm cov khoom siv sib xyaw, thiab sib xyaw hauv qab cov nplawm hluav taws xob siab thiab ua npuas dej.
Ib-qib ua npuas dej ua npuas ncauj yog ib qho txheej txheem ib txwm siv. Kuj tseem muaj phau ntawv ua npuas ncauj txoj kev, uas yog qhov yooj yim tshaj plaws. Tom qab tag nrho cov ntaub ntawv raw yog hnyav, lawv tau muab tso rau hauv ib lub taub ntim, thiab tom qab ntawd cov ntaub ntawv raw no tau sib xyaw nrog cov pwm lossis qhov chaw uas yuav tsum tau sau nrog npaus. Nco tseg: thaum qhov hnyav, Polyisocyanate (cov khoom siv dub) yuav tsum tau ntsuas nyob rau hauv kawg.
Rigid Polyurethane ua npuas ncauj yog feem ntau ua rau nyob ntawm chav tsev kub, thiab cov tshuaj moulding kuj yooj yim. Raws li cov qib ntawm kev tsim kho lub tshuab siv, nws tuaj yeem faib ua kev siv tshuab ua npuas thiab tshuab ua npuas. Raws li lub siab thaum ua npuas ncauj, nws tuaj yeem faib ua cov hmoov foaming siab thiab cov khoom siv qis. Raws li cov qauv moulding, nws tuaj yeem muab faib ua pouring ua npuas thiab txau ua npuas ncauj.
Kev cai
Polyurethane ua npuas ncauj tus neeg sawv cev tau teev tseg los ntawm Ministry of kev tsim kho raws li cov khoom lag luam kom tau nce qib thiab thov lub sijhawm "thib kaum ib-xyoo npaj" lub sijhawm.
Kev Cia Siab Ua Lag Luam
Txij xyoo 2000 cov khoom tau nce qib thiab thov hauv Suav teb, kev thov kev lag luam tau nthuav nrawm. Xyoo 2009, kev noj txhua xyoo ntawm kev ua lag luam hauv tebchaws tau tshaj 80 lab cants. Nrog kev txhim kho ntawm lub tsev ua tau zoo thiab kev nce qib ntawm lub zog-txuag cov vaj tse, cov khoom zoo li no tus muaj txiaj ntsig yuav ua rau muaj lub ntsej muag ua rau yav tom ntej.
Kev tsim kho tshuab thiab kev tsim khoom ntau lawm, cov tshuaj lom neeg ua npuas dej tau ua kom puas cov roj pleev xim uas tsis siv, thiab cov khoom lag luam nrog ua ntej ua ntej (1) tau tsim. Tsuas yog qee cov tuam ntxhab tseem siv cov khoom siv hluav taws xob txawv teb chaws, lwm yam kev txhawb nqa cov ntaub ntawv raw tau ua haujlwm hauv tsev.
Los ntawm phau ntawv qhia
(1) Qhov thiaj li hu ua ntej-ua ntej foaming txhais tau tias 80% ntawm Polyurethane Foaming Tus Neeg Sawv Cev tau ua npuas ncauj tom qab txau, thiab ua npuas dej tom qab yog tsawg heev.
Qhov no tso cai rau cov neeg ua haujlwm los tuav lub zog ntawm lawv txhais tes thaum siv rab phom ua npuas ncauj, uas yooj yim thiab tsis khib lock nplaum. Tom qab foam yog txau, cov kua nplaum maj mam ua tuab dua thaum nws raug tua.
Nyob rau hauv txoj kev no, nws yog qhov nyuaj rau cov neeg ua haujlwm los tuav lub zog ntawm rub tawm ntawm lawv txhais tes, thiab nws yooj yim kom khib cov kua nplaum, tsawg kawg 1/3 ntawm cov khib nyiab. Ib qho ntxiv, cov kua nplaum nthuav dav yog yooj yim rau nyem lub qhov rooj thiab lub qhov rais tom qab kho tau, xws li cov kua nplaum dog dig hauv khw Hoobkas.
Lub Sijhawm Post: Tsib Hlis-25-2021