Asbestos Cement Sheet Ua Tshuab

 

I. Cov Khoom Siv Tseem Ceeb Ntau Lawm ntawm Asbestos Cement Sheet Ua Tshuab

1. Curing Materials:

Cement: Feem ntau siv Portland cement (OPC), yuav tsum tau ruaj khov thiab qib siab (xws li PO 42.5 lossis siab dua). Nws yog lub hauv paus rau lub zog ntawm cov pobzeb lub cev. Qee zaum, ib qho me me ntawm siab - alumina cement lossis ceev - teeb tsa cement yog ntxiv los kho lub sijhawm teeb tsa lossis lub zog ntxov.

Siliceous Materials: Quartz xuab zeb los yog silica xuab zeb. Muab lub moj khaum, nce hardness thiab hnav tsis kam, thiab txo qis shrinkage. Qhov loj me me (feem ntau fineness modulus nyob ib ncig ntawm 1.8-2.2) thiab cov ntsiab lus av nplaum yuav tsum tau tswj nruj me ntsis.

Active Mineral Additives: Xws li ya tshauv, silica fume. Ib nrab hloov cov cement kom txo cov nqi, txhim kho kev ua haujlwm, thiab txhim kho tom qab lub zog thiab durability (volcanic ash effect).

2. Txhim kho Fibers (Tsis yog-Carbon Fiber):

Cellulose Fiber: Los ntawm cov ntaub so ntswg los yog cov ntaub so ntswg (xws li cov ntoo bleached coniferous). Feem ntau siv lwm cov fiber ntau, muab kev sib cais zoo, pib lub zog ntub, thiab qee qhov kawg lub zog. Tus nqi kuj tsawg.

Synthetic Fibers:

Polyvinyl cawv fiber ntau: Lub zog siab, siab elastic modulus, zoo alkali tsis kam, yog ib qho tseem ceeb txhawb cov khoom siv rau siab - cov vuas ua haujlwm.

Polypropylene fiber ntau / Polyethylene fiber ntau: Tus nqi qis, feem ntau muab kev tiv thaiv tawg (kev ua haujlwm tawg), nrog kev pab me me rau qhov kawg ntawm lub zog.

Aramid fiber ntau: siab zog, siab modulus, kub tsis kam, siv nyob rau hauv tshwj xeeb siab - cov khoom ua tau zoo, nrog tus nqi siab.

Mineral Fiber: Basalt fiber (siab kub ua hauj, corrosion kuj, siab zog), iav fiber (yuav tsum tau alkali txheej, AR- iav). Daim ntawv thov yog maj mam nce.

3. Dej: Ua tau raws li tus qauv rau kev sib xyaw ua ke dej. Nws yog ib qho tsim nyog nruab nrab rau kev tsim cov cement paste thiab ua rau muaj kev cuam tshuam hydration.

4. Additives (Me me tab sis tseem ceeb heev):

Dispersants/Retarding Agents: Txhim kho qhov fluidity ntawm slurry, txo cov dej -cement ratio, thiab txhim khu kev ceev thiab lub zog. Feem ntau siv yog siab - ua tau zoo polycarboxylate retarding agents.

Cov Neeg Ua Haujlwm Thaum Ntxov: Ua kom cov cement hydration, ua kom muaj zog thaum ntxov.

Retarding Agents: Siv thaum nws tsim nyog los txuas lub sijhawm ua haujlwm.

Defoaming Agents: Txo cov npuas nkag thaum sib tov thiab molding, txhim kho cov khoom ntom.

Waterproof Agents/Hydrophobic Agents: Txhim kho cov dej tsis zoo ntawm cov khoom tiav (qee zaum siv rau hauv kev kho deg lossis txheej).

Xim: Siv thaum tsim cov vuas xim, siv cov xim tsis muaj xim (xws li hlau oxide series) uas tiv taus alkali.

 

 

II. Core Ntau Lawm Txheej Txheem Flow

Txoj kev tsim khoom tseem ceeb rau cov vuas fiber ntau yog "wt spinning method" thiab "sheeting method". Txoj kev ntub dej ntub dej muaj cov cuab yeej siv qis dua thiab cov txheej txheem yooj yim dua, ua rau nws lub hauv paus rau kev lag luam me thiab nruab nrab - loj; cov txheej txheem sheeting muaj qib siab dua ntawm automation thiab tsim cov khoom lag luam nrog kev ua haujlwm zoo dua qub thiab ruaj khov, ua rau nws tsim nyog rau loj - nplai ntau lawm. Cov hauv qab no yuav muab cov lus piav qhia ntxaws uas siv cov txheej txheem ntub dej ua piv txwv:

1. Raw khoom cia thiab ua ntej- kho:

Cement thiab xuab zeb yog khaws cia hauv silos.

Cov xuab zeb yuav tsum tau qhuav (kom tswj tau noo noo) thiab sieved (kom tswj particle loj).

Fibers (xws li pulp) yuav tsum tau muab tshem tawm, shredded los yog pulped (sib tov nrog dej nyob rau hauv lub tshuab pulping los tsim ib tug uniform pulp).

Cov tshuaj ntxiv yog npaj raws li cov qauv.

2. Cov khoom xyaw thiab kev sib xyaw:

Raws li daim ntawv qhia meej meej, ncuav cov cement, kho cov xuab zeb, fiber ntau pulp (los yog cov fibers qhuav), dej, thiab ntau yam additives rau hauv siab - sib tov ceev.

Kev sib xyaw ua ke yog ib kauj ruam tseem ceeb, yuav tsum tau:

Siab shear quab yuam: xyuas kom meej tias cov fibers yog tag nrho dispersed yam tsis muaj clumping.

Uniformity: Ua ib qho kev sib xws, ruaj khov, thiab cov kua dej me me slurry.

Tswj cov dej -cement ratio: Khaws nws kom tsawg li sai tau thaum ua kom muaj dej ntws los txhim kho cov khoom muaj zog.

Hloov cov slurry sib xyaw rau hauv lub tank cia lossis xa ncaj qha mus rau lub tshuab molding.

3. Kev tsim (Core ntawm Slurry Flow Method):

Kev tsim lub tshuab: Cov khoom siv tseem ceeb muaj ib daim pam tsis tu ncua (cov ntaub lim dej tiaj tus) thiab lub tshuab nqus dej hauv qab no.

Slurry tank: Lub slurry ntws (los yog overflows) uniformly ntawm lub slurry tank mus rau hauv daim pam tsis tu ncua.

Thaum pib lub cev qhuav dej: Lub slurry ib txwm dehydrates ntawm daim pam vim lub ntiajteb txawj nqus, tsim ib txheej ntawm cov khoom ntub dej.

Nqus lub cev qhuav dej: Cov ntaub ntub dej txheej ua raws li daim pam mus rau sab saum toj ntawm lub tshuab nqus tsev. Nyob rau hauv cov nyhuv nqus ntawm lub tshuab nqus tsev, ntau cov dej thiab cua tau tshem tawm sai sai, thiab cov ntaub ntawv txheej yog compressed, tsim ib lub cib ntub dej tas mus li nrog qee qhov pib lub zog. Lub tshuab nqus tsev kawm ntawv thiab lub sij hawm lub cev qhuav dej yog qhov tseem ceeb tswj tsis tau.

Kev sib sau / txheej: Raws li lub thickness yuav tsum tau ntawm lub cib, daim pam yuav voj voog ntau zaus (feem ntau 2-4 txheej), thiab cov khoom tshiab txheej yog superimposed ntawm ib feem ntawm lub cev qhuav dej hauv qab txheej. Los ntawm lub siab ntawm daim pam thiab lub tshuab nqus tsev, nws yog nruj nreem laminated ua ke los tsim ib qho tag nrho ntub daim.

Trimming / Cutting edges: Cov npoo ntawm cov khoom ntub dej yuav raug txiav los ntawm kev sib hloov cov hniav kom ntseeg tau tias qhov dav dav.

Hla-txiav: Cov cib ntub dej tsis tu ncua dhau los ntawm tus ntoo khaub lig tsis siv neeg- txiav tshuab thiab txiav rau hauv ib qho ntawm cov cib ntub dej raws li qhov ntev. Txoj kev txiav muaj xws li rotating saw hniav los yog steel hlau txiav.

4. Piling thiab Pre-Kov:

Cov pobzeb ntub dej ntawm tus kheej txiav tawm yog txiav rau ntawm lub tais kho (txias steel).

Qhov siab stacking yog txiav txim los ntawm cov pobzeb hom thiab lub zog.

Cov pobzeb ntub dej, nrog rau lub tais, raug xa mus rau qhov chaw ua ntej - kho (feem ntau yog ib chav zoo li qub uas tswj tau qhov kub thiab txias). Nyob rau theem no:

Cov cement pib pib hydration.

Kev faib dej noo nyob rau hauv cov pobzeb blanks ua ntau yam.

Ib qho kev pib lub zog (lub zog "demolding") yog tiav, tso cai rau demolding li ntawm 8-12 teev. Tom qab muab tso rau hauv tsev rau ob peb hnub, lawv tuaj yeem raug xa tawm lossis tsiv tawm sab nraud.

5. Demolding, ziab thiab Post-Kev kho mob ntawm Asbestos Cement Sheet Ua Tshuab:

Demolding: Tom qab cov txheej txheem kho tiav, cov vuas raug tshem tawm ntawm lub rooj tsav xwm txhawb nqa.

Qhuav/Natural Curing: Cov vuas tom qab chav kho mob muaj me me ntawm cov dej seem. Lawv yuav tsum tau qhuav nyob rau hauv ib qho chaw zoo - qhov cua los yog chav ziab rau ib lub sij hawm (los ntawm ob peb hnub mus rau ib lub lim tiam) kom ncav cuag cov ntsiab lus noo noo thiab txhim kho kev ruaj ntseg ntxiv.

Kev kho saum npoo (yeem):

Txheej Txheej: Txau los yog yob siv acrylic, silicone lossis fluorocarbon txheej los muab cov xim, txhim khu kev tiv thaiv dej, tiv thaiv stains thiab kev zoo nkauj.

Nto Etching: Ua ntej tsim los yog kho, siv tus qauv rau cov menyuam los sau cov ntoo -zoo li lossis pob zeb-zoo li textures.

Polishing / Tshuaj ntsuam xyuas: Tshawb xyuas qhov pom, qhov ntev, rau cov kab nrib pleb lossis lwm yam tsis xws luag, thiab ua qhov tsim nyog hloov kho (xws li sib tsoo tawm burrs).

Ntim thiab Cia: Cov khoom tsim nyog tau ntim raws li cov lus qhia tshwj xeeb. Feem ntau, lawv tau ntim los yog ntim rau ntawm pallets thiab khaws cia hauv lub tsev khaws khoom qhuav tos cov khoom xa tuaj.

 

Cim npe nrov: Tuam Tshoj asbestos cement sheeting tshuab manufacturers, lwm tus neeg, Hoobkas