Steel qauv fireproof txheej yog muab faib ua pawg

1. Txoj kev siv hluav taws xob tiv thaiv hluav taws

A. Scraping method B. Roller txheej method C. Brushing method D. Cua compressor spraying method E. Airless spraying method

1, thawj txoj kev tsim kho yog txoj kev scraping ntau tshaj plaws: feem ntau siv xws li fiberglass scraper, horn scraper, yas scraper, tawv roj hmab ntawv thiab lwm yam hlau los yog non-metallic tes scraping cov cuab yeej, yuav yog cov nto ntawm cov khoom ntau yam. tuab slurry fireproofing txheej los yog crevices thiab lwm yam tshaj ib feem ntawm lub scraping tawm.

2, txoj kev tsim kho thib ob yog cov txheej txheem txheej txheej txheej: cov txheej txheem txheej txheej feem ntau yog siv rau kev tsim kho phab ntsa, hauv cov menyuam ntawm cov xim pleev xim rau saum npoo, thiab tom qab ntawd dov rov qab thiab tawm ntawm phab ntsa.

3, txoj kev tsim kho thib peb yog txoj kev txhuam txheej txheej: txhuam txheej txheej tsis tsuas yog siv rau kev tsim kho phab ntsa, lwm yam zoo li ntawm qhov chaw ntawm cov khoom tuaj yeem ua haujlwm, feem ntau ntawm cov khoom siv hluav taws xob tuaj yeem tsim ua li no.

4, txoj kev tsim kho thib plaub yog cov cua compressor txau txoj kev: kev siv cua compressor pressurisation nrog rab phom txau yuav tsum tau txau rau saum npoo ntawm cov khoom tom qab atomisation ntawm cov xim, cov txheej txheem zoo tom qab txau yog qhov sib xws, kev ua haujlwm ntau lawm. siab heev. 5, txoj kev tsim kho thib plaub yog cov tshuaj tsis muaj pa: kev siv cov twj tso kua mis, cov twj diaphragm thiab lwm cov ntaub ntawv ntawm cov twj tso kua mis yuav pressurized nrog cov kua xim, thiab tom qab ntawd los ntawm lub siab-siab hose mus rau airless spray phom, thiab thaum kawg nyob rau hauv lub airless nozzle tso tawm hydraulic siab, instantaneous atomisation, thiab ces cov hluav taws tiv thaiv txheej yuav siv tau nyob rau hauv no txoj kev. Hydraulic siab, instantaneous atomisation yog sprayed rau saum npoo ntawm cov khoom coated los tsim ib txheej txheej.

Cov qauv hlau yog cov qauv tsim los ntawm cov khoom siv hlau thiab yog ib qho ntawm cov qauv tseem ceeb ntawm lub tsev. Cov qauv no tsuas yog tsim los ntawm cov kab teeb, steel kab, steel trusses thiab lwm yam khoom ua los ntawm steel profiles thiab steel daim hlau, thiab lwm yam, thiab txais yuav xeb tshem tawm thiab antirust txheej txheem xws li silanisation, ntshiab manganese phosphating, ntxuav thiab ziab, thiab galvanization. Welds, bolts lossis rivets feem ntau yog siv los txuas cov khoom lossis cov khoom. Vim nws lub teeb rau nws tus kheej thiab kev tsim kho yooj yim, nws yog dav siv nyob rau hauv loj-scale factories, arenas, super-high-rise thiab lwm yam teb.

(1) Nws tuaj yeem muab faib ua hnyav-raws li steel qauv fireproof txheej thiab dej-raws li steel qauv fireproof txheej raws li hom binder. Solvent-based steel qauv fireproof txheej yuav muab faib ua hnyav-raws li steel qauv fireproof txheej nrog tsawg benzene cov ntsiab lus thiab hnyav-raws li steel qauv fireproof txheej nrog siab benzene cov ntsiab lus.

(2) Raws li qhov chaw siv, nws tuaj yeem muab faib ua: sab hauv (N) steel qauv fireproof txheej: siv nyob rau saum npoo ntawm steel qauv ntawm sab hauv lossis zais cov haujlwm ntawm cov tsev; sab nraum zoov (W) steel qauv fireproof txheej: siv nyob rau saum npoo ntawm steel qauv ntawm sab nraum zoov los yog qhib-cua tej yaam num ntawm lub tsev.

(3) Raws li lub thickness ntawm kev siv, nws yuav muab faib ua: ultra-thin hom (CB) steel qauv fireproof txheej: txheej thickness ≤3mm; nyias hom (B) steel qauv fireproof txheej: txheej thickness ntawm 3mm-7mm; tuab hom (H) steel qauv fireproof txheej: txheej thickness ntawm 8-50mm.

Cov ntaub ntawv txuas ntxiv

Nrog rau txoj kev loj hlob ntawm Tuam Tshoj lub nroog nplai, daim ntawv thov ntawm steel qauv nyob rau hauv Tuam Tshoj txoj kev tsim kho kev lag luam muaj ib tug dav heev zeem muag. Txawm li cas los xij, txij li cov qauv steel nws tus kheej yog tsis-combustible, qhov teeb meem ntawm fireproof thiab kub rwb thaiv tsev tiv thaiv ntawm steel qauv yog ib zaug neglected. Raws li cov ntaub ntawv xov xwm hauv tsev thiab thoob ntiaj teb thiab cov kev ntsuam xyuas thiab kev txheeb xyuas los ntawm cov koom haum cuam tshuam, qhov hluav taws kub tsis kam ntawm cov tsev steel tsis zoo dua li cov masonry thiab cov pob zeb ua vaj tse.

Lub zog txhua yam ntawm cov hlau txo nrog qhov nce ntawm qhov kub thiab txias, thiab nws lub zog txo mus rau 40% -50% ntawm li 500 ℃, thiab cov khoom siv ntawm cov hlau, xws li cov khoom taw tes, compressive zog, modulus ntawm elasticity, thiab load peev xwm, thiab lwm yam, txo qis sai, thiab sai sai poob lub peev xwm los txhawb lub tsev, ua rau lub tsev tawg. Yog li ntawd, nws yog ib qho tseem ceeb los tiv thaiv cov qauv steel.

Steel qauv fireproof txheej yog txhuam los yog txau rau saum npoo ntawm steel qauv, uas plays lub luag hauj lwm ntawm fireproofing thiab tshav kub rwb thaiv tsev, tiv thaiv cov hlau los ntawm sai cua sov thiab txo nws lub zog nyob rau hauv hluav taws, thiab zam lub steel qauv los ntawm poob nws cov kev txhawb nqa thiab ua rau lub tsev tawg.

Raws li thaum ntxov xyoo 1970s, kev tshawb fawb txawv teb chaws thiab kev siv cov txheej txheem steel fireproof txheej tau pib ua haujlwm zoo thiab ua tau zoo, thiab tseem nyob hauv qhov nce.

Nyob rau hauv thaum ntxov 80s, txawv teb chaws steel qauv fireproof txheej nkag mus rau hauv Suav lag luam thiab tau siv nyob rau hauv qhov project. Los ntawm thaum ntxov 80's, Tuam Tshoj kuj pib tsim steel qauv fireproof txheej, kom deb li deb muaj ntau yam zoo lug siv nyob rau hauv ntau yam industries.

2.Thin-type steel qauv fireproof txheej

Nyias hom steel qauv fireproof txheej yog hais txog cov hlau qauv fireproof txheej nrog txheej thickness ntau dua 3 hli, tsawg dua los yog sib npaug rau 7 hli, nrog rau tej yam zoo nkauj nyhuv, expansion thiab thickening ntawm kub kub, thiab hluav taws kub tsis pub dhau 2h. Cov qauv hlau no feem ntau yog ua los ntawm cov dej-raws li polymers ua cov khoom siv hauv paus, thiab tom qab ntawd sib xyaw nrog cov hluav taws kub retardant composite system, hluav taws kub additives, hluav taws-resistant fibers, thiab lwm yam., thiab nws cov fireproofing txoj cai yog tib yam li ntawd. ntawm hom ultra-thin. Rau cov txheej txheem hluav taws xob zoo li no, xaiv cov dej-raws li polymer yuav tsum muaj adhesion zoo, durability thiab dej tsis kam rau cov hlau substrate. Nws cov cuab yeej kho kom zoo nkauj yog zoo dua li cov tuab fireproof txheej, inferior rau ultra-thin steel qauv fireproof txheej, thiab qhov dav dav hluav taws kub tsis pub dhau 2h. Yog li ntawd, nws yog feem ntau siv nyob rau hauv lub steel qauv hluav taws xob tiv thaiv project nrog hluav taws tsis kam txwv tsawg tshaj li 2h, thiab feem ntau txais kev siv tshuaj tsuag. Nws nyob hauv ib qho kev faib ua feem ntau nyob rau lub sijhawm, tab sis nrog cov tsos ntawm ultra-thin steel qauv fireproof txheej, nws txoj kev lag luam tau maj mam hloov.

3.Thick steel qauv fireproof txheej

Thick steel qauv fireproof txheej yog hais txog cov hlau qauv fireproof txheej nrog txheej thickness ntau dua 7 hli, tsawg dua los yog sib npaug li 45 hli, granular nto, tsawg ntom, tsis tshua muaj thermal conductivity, thiab hluav taws-resistant txwv ntau tshaj 2h. Raws li cov txheej txheem ntawm cov txheej txheem tuab yog cov khoom siv tsis zoo, nws cov khoom siv hluav taws xob ruaj khov thiab kev siv lub sijhawm ntev yog qhov zoo dua, tab sis cov khoom ntawm nws cov txheej txheej yog qhov loj dua thiab cov tsos ntawm cov txheej yog tsis sib xws, uas cuam tshuam rau kev zoo nkauj tag nrho. lub tsev, yog li nws feem ntau yog siv rau cov txheej txheem zais cov haujlwm. Hom fireproof txheej no nyob rau hauv qhov hluav taws kub siv cov khoom granular nto, tsawg ntom, tsis tshua muaj thermal conductivity los yog tshav kub nqus ntawm cov khoom nyob rau hauv lub txheej, ncua qhov kub ntawm cov hlau los tiv thaiv cov hlau. Hom kev tiv thaiv hluav taws kub no yog ib qho tsim nyog inorganic binder (xws li dej iav, silica sol, aluminium phosphate, refractory cement, thiab lwm yam), thiab tom qab ntawd nrog inorganic lightweight adiabatic aggregate cov ntaub ntawv (xws li nthuav perlite, nthuav vermiculite, hiav txwv hugger, bleached. hlaws, ya tshauv, thiab lwm yam), hluav taws kub additives, tshuaj thiab cov ntaub ntawv txhawb zog (xws li txhuas silicate fibers, pob zeb wool, ceramic fibers, iav fibers, thiab lwm yam.) thiab fillers, thiab lwm yam., tov thiab npaj, nrog ib tug kuj kim kim. qhov zoo ntawm tus nqi qis. Kev tsim kho feem ntau siv tshuaj tsuag, uas yog tsim rau sab hauv tsev thiab sab nraum zoov zais steel qauv nrog hluav taws kub txwv tsis pub tshaj 2h, high-rise all-steel qauv thiab ntau-storey cog steel qauv. Piv txwv li, qhov hluav taws kub tsis kam ntawm cov kab ntawm cov vaj tse siab thiab cov kab uas txhawb nqa ntau-storey hauv kev lag luam thiab pej xeem vaj tse yuav tsum ncav cuag 3h, thiab yuav tsum tau tiv thaiv los ntawm cov tuab fireproof txheej.Ultra-thin steel qauv fireproof txheej hais txog. rau steel qauv fireproof txheej nrog txheej thickness ntawm 3 hli (xws li 3 hli) los yog tsawg dua, nrog zoo zoo nkauj nyhuv, expanding thiab foaming ntawm kub kub, thiab nrog hluav taws kub tsis kam ntawm 2h los yog tsawg dua. Cov txheej txheem steel hlau no feem ntau yog qhov hnyav-raws li qhov system, nrog lub zog nplaum zoo dua, huab cua tsis zoo thiab dej tsis kam, zoo levelling, zoo zoo nkauj nta; Thaum nyob rau hauv hluav taws kub, nws maj mam nthuav thiab foams los tsim ib tug ntom thiab nyuaj fireproof tshav kub rwb thaiv tsev txheej, uas muaj ib tug muaj zog hluav taws tsis kam mus rau tej yam, slows down qhov kub ntawm cov hlau, thiab tiv thaiv cov hlau Cheebtsam zoo. Kev tsim kho ntawm ultra-thin intumescent steel qauv fireproof txheej tuaj yeem txau, txhuam los yog cov menyuam coated, feem ntau yog siv rau hauv cov hluav taws kub-resistant txwv tsis pub dhau 2h ntawm lub tsev steel qauv. Muaj ntau yam tshiab ntawm ultra-thin steel qauv fireproof coatings nrog hluav taws kub kev ua tau zoo mus txog los yog tshaj 2h, uas yog mas raws li cov qauv tshwj xeeb ntawm polymethacrylate los yog epoxy resin thiab amino resin, chlorinated paraffin wax, thiab lwm yam. nrog siab polymerization ntawm polyphosphoric acid ammonium ntsev, dipentaerythritol, melamine thiab thiaj li nyob rau hauv fireproofing thiab nplaim-retardant system, ntxiv titanium dioxide, wollastonite thiab lwm yam inorganic refractory cov ntaub ntawv rau 200 # hnyav roj raws li cov kuab tshuaj composite. Cov roj hnyav yog siv los ua cov kuab tshuaj. Txhua yam ntawm lub teeb steel qauv, net thav duab thiab lwm yam feem ntau siv hom fireproof txheej rau kev tiv thaiv hluav taws. Vim lub ultra-nyias txheej ntawm no hom fireproof txheej, kev siv cov thicker thiab thinner steel qauv fireproof txheej yog heev txo, yog li txo tag nrho cov nqi ntawm peb tes num, tab sis kuj ua rau cov steel qauv kom tau txais kev tiv thaiv hluav taws zoo, thiab cov nyhuv fireproof zoo heev.