標(biāo)準(zhǔn)解讀

《GB/T 2988-2012 高鋁磚》與《GB/T 2988-2004 高鋁磚》相比，在多個(gè)方面進(jìn)行了更新和調(diào)整。首先，新版本對高鋁磚的分類進(jìn)行了細(xì)化，根據(jù)Al2O3含量的不同將產(chǎn)品分為多個(gè)等級，并且對于每個(gè)等級的產(chǎn)品規(guī)格、尺寸允許偏差及外觀質(zhì)量要求做了更為明確的規(guī)定。其次，《GB/T 2988-2012》增加了部分技術(shù)指標(biāo)的要求，如耐壓強(qiáng)度、熱震穩(wěn)定性等性能測試標(biāo)準(zhǔn)有所提高，以適應(yīng)更高要求的應(yīng)用場景。此外，新版標(biāo)準(zhǔn)還加強(qiáng)了對生產(chǎn)過程控制的要求，包括原料選擇、成型工藝、干燥與燒成制度等方面的具體指導(dǎo)原則，旨在保證產(chǎn)品質(zhì)量的一致性和可靠性。同時(shí)，《GB/T 2988-2012》中也更新了一些試驗(yàn)方法，比如采用更先進(jìn)的檢測手段來測定產(chǎn)品的物理化學(xué)性質(zhì)，確保數(shù)據(jù)更加準(zhǔn)確可靠。通過這些變化，《GB/T 2988-2012 高鋁磚》為行業(yè)提供了更加科學(xué)合理的規(guī)范依據(jù)。


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文檔簡介

ICS81080

Q42.

NationalStandardofthePeolesReublicofChina

p’p

GB/T2988—2012

ReplaceGB/T2988—2004

Highaluminabricks

高鋁磚

EnlishTranslation

(g)

Issuedate2012-11-05Imlementationdate2013-05-01

:p:

IssuedbyGeneralAdministrationofQualitySupervisionInspectionand

,

QuarantineofthePeoplesRepublicofChina

’

StandardizationAdministrationofthePeoplesRepublicofChina

’

GB/T2988—2012

Foreword

SAC/TC193isinchargeofthisEnglishtranslationIncaseofanydoubtaboutthecontentsofEnglish

.

translationtheChineseoriginalshallbeconsideredauthoritative

,.

ThisstandardisdraftedinaccordancewiththerulesgivenintheGB/T11—2009

.

ThisstandardreplacesGB/T2988—2004Highaluminabricksinwholeandchangesinthisstandard

,

overthepreviouseditionareasfollows

.

—YB/T5015—1993HighaluminabricksforblastfurnaceYB/T5016—2000Highaluminabricksfor

,

hotblastfurnaceYB/T5017—2000HighaluminabricksforelectricarcfurnaceroofYB/T5020—

,,

2002HighaluminabricksformoltensteelladleandGB/T2988—2004Highaluminabricksareinte-

,

gratedandrevised

.

—Indexesoflowcreepcheckerbrickseriesareadded

.

—HighaluminagroupsareunifiedasLZ

.

—GroupsofLZ-70LZ-75GLZ-65GandLZ-55Gareadded

,,.

—Indexesofapparentporositypermanentchangeindimensiononheatingrefractorinessunder

,,

loadandcoldcompressivestrengtharerevised

,.

—Thesizetoleranceandappearancerequirementsofcheckerbricksareadded

.

—Somesizeandappearancerequirementsarerevised

.

—Thestatisticsmeaningsofcharacteristicindexesofchemicalcompositionandphysicalproperties

ofproductsaredefinedandtheaveragevalueofqualifiedlotsandstandardtoleranceareintro-

,

duced

.

ThisstandardwasproposedandpreparedbySAC/TC193TechnicalCommitteeonRefractoriesof

StandardizationAdministrationofChina

.

Thepreviouseditionsareasfollows

:

—GB/T2988—1982GB/T2988—1987GB/T2988—2004

,,.

Ⅰ

GB/T2988—2012

Highaluminabricks

1Scope

Thisstandardspecifiestheclassificationdimensionstechnologicalrequirementstestmethods

,,,,

qualityappraisalprocedurepackingmarkingtransportationstorageandqualitycertificateofhigh

,,,,,

aluminabricks

.

Thisstandardisapplicabletothecommonhighaluminabricksandlowcreephighaluminabricksfor

hightemperaturefurnacesandkilns

.

2Normativereferences

ThefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocumentFor

.

datedreferencesonlytheeditioncitedappliesForundatedreferencesthelatesteditionoftheref-

,.,

erenceddocumentincludinganyamendmentsapplies

().

GB/T29921Dimensionsofrefractorybricks—Part1Specificationforgeneralbricks

.,:

GB/T2997Testmethodforbulkdensityapparentporosityandtrueporosityofdenseshapedre-

,,

fractoryproducts

GB/T5072Refractories—Determinationofcoldcompressivestrength

,

GB/T5073Refractoryproducts—Testmethodofcreepincompression

,

GB/T5988Refractoryproducts—Determinationofpermanentchangeindimensiononheating

,

GB/T6900Chemicalanalysisofalumina-silicarefractories

,

GB/T7321Samplepreparationfortestingofshapedrefractoryproducts

,

GB/T10325Shapedrefractoryproducts—Ruleofacceptancesamplingandinspection

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