Qhov Sib Txawv ntawm A1 thiab A2 Coatings ntawm Cov Yeeb Nkab Hlau Cam Khwb Cia

Hauv cov yeeb nkab hlau cam khwb cia, cov qauv txheej txheem ntawm A1 thiab A2 qib hauv cov qib tiv thaiv hluav taws, uas tuaj yeem siv los ntsuas qhov hluav taws tsis kam ntawm cov ntaub ntawv tsim kho xws li xim.Qhov sib txawv ntawm A1 thiab A2 xim yog raws li nram no:

Cov qauv xeem sib txawv
Xim A1: yuav tsum dhau ob qho kev sim tsis kub hnyiab thiab kev sim calorific value. Tus qauv yuav tsum tau kub nce ntawm △T≤30 ℃ thiab poob phaus ntawm △m≤50%; tus qauv EN ISO 1716 yuav tsum tau tso cua sov ntawm PCS≤2.0MJ / kg.

Xim A2: yuav tsum dhau EN ISO 1182 lossis EN ISO 1716, thiab ua tau raws li cov qauv tshwj xeeb hauv EN ISO 13823 kev sim hluav taws xob ib lub cev, xws li FIGAR≤120W/S, LFS ＜ntug qauv, thiab THR600S≤7.5MJ.

Kev ua tau zoo sib txawv
Xim A1: Nws yog ib yam khoom uas tsis kub hnyiab thiab tsis ua rau muaj pa luam yeeb lom. Nws yuav luag tsis tso cua sov tawm, tsis muaj pa luam yeeb lom, thiab tsis muajcov dej kub hnyiab thaum lub sijhawm sim kev sib xyaw, thiab tuaj yeem tiv thaiv kev sib kis ntawm hluav taws thiab pa luam yeeb mus rau qhov loj tshaj plaws.

Xim A2: Txawm hais tias nws kuj yog cov khoom siv uas tsis kub hnyiab, piv rau A1, nws tso cai rau qee qhov kev sim me ntsis xoob dua, thiab tej zaum yuav muajqee qhov pa luam yeeb.

Lub hauv paus xaiv hauv kev siv ua haujlwm
Kev xeb ib puag ncig
A1: Haum rau cov chaw qhuav hauv tsev (xws li cov kav dej ntws hauv cov tsev)

A2: Yuav tsum siv rau cov kav dej faus, cov kav dej kho dej phwj tuaj, ntug dej hiav txwv uas muaj av noo siab thiab cov chaw ntsev ntau, thiab lwm yam.

Kev sib phim ntawm lub txheej txheem txheej
Cov nto A2-theem tuaj yeem phim nrog cov txheej txheem ua haujlwm siab (xws li polyurethane, hmoov epoxy), uas txhim kho kev tiv thaiv tshuaj lom neeg thiab kev hnav tsis kam.

Piv txwv li, cov txheej polyurethane ntawm cov kav hlau ductile (GB / T 24596-2021) xav kom cov substrate tsis muaj xeb tsawg kawg yog Sa2.5 kom ntseeg tau tias qhov cuam tshuam thiab kev nplaum ntawm cov txheej txheem

Tus nqi thiab kev saib xyuas lub voj voog
Cov nqi ua tiav theem A1 qis tab sis xav tau kev saib xyuas ntau zaus; cov nqi pib theem A2 siab (xav tau cov khoom siv xuab zeb), tab sis cov txiaj ntsig kev lag luam thoob plaws lub neej tag nrho zoo dua

Yuav ua li cas xaiv cov xim ntawm cov kav dej hlau cam khwb cia?

#EN877 #castironpipe #pipeline #EpoxyCastIrondrainagesystem #smlpipe #drainage #watersupply #casting #buildingmaterials #EN877:2021