标准解读

《GB/T 2988-2012 高铝砖》与《GB/T 2988-2004 高铝砖》相比,在多个方面进行了更新和调整。首先,新版本对高铝砖的分类进行了细化,根据Al2O3含量的不同将产品分为多个等级,并且对于每个等级的产品规格、尺寸允许偏差及外观质量要求做了更为明确的规定。其次,《GB/T 2988-2012》增加了部分技术指标的要求,如耐压强度、热震稳定性等性能测试标准有所提高,以适应更高要求的应用场景。此外,新版标准还加强了对生产过程控制的要求,包括原料选择、成型工艺、干燥与烧成制度等方面的具体指导原则,旨在保证产品质量的一致性和可靠性。同时,《GB/T 2988-2012》中也更新了一些试验方法,比如采用更先进的检测手段来测定产品的物理化学性质,确保数据更加准确可靠。通过这些变化,《GB/T 2988-2012 高铝砖》为行业提供了更加科学合理的规范依据。


如需获取更多详尽信息,请直接参考下方经官方授权发布的权威标准文档。

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  • 已被新标准代替
  • 2012-11-05 颁布
  • 2013-05-01 实施
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文档简介

ICS81080

Q42.

NationalStandardofthePeolesReublicofChina

p’p

GB/T2988—2012

ReplaceGB/T2988—2004

Highaluminabricks

高铝砖

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

,,.

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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