資源描述:
《ppr穩(wěn)態(tài)管(ppr穩(wěn)態(tài)管)》由會員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、ppr穩(wěn)態(tài)管(ppr穩(wěn)態(tài)管)TechnicalcharacteristicsandengineeringapplicationofPP-Raluminiumplasticsteadytube1,productoverview:compositepipe,generallyreferstothepipebytwoormorethantwolayersofthermoplasticandalayerofembeddedmetallayerofmultilayerpipe.PP-Raluminiumplasticsteadytubeisacompositepipema
2、deofPP-Rtubeandalloyaluminumlayer.GermanyiscalledPP-Rsteadycompoundtube,PP-RenhancementtubeorPP-Rcladaluminiumtube.PP-Rsteady-statealuminumplasticpipePP-Rplasticandmetalorganiccombinationofbothflexibilityandrigidmetaltubeplastictube,toachievestablemechanicalpropertiesthroughtheintegr
3、ationofthealuminumlayerhashigherstrengthandbetterhigh-temperatureperformance.PP-Rsteady-statealuminumplasticpipecompositepipeisanewhotandcoldwater,thereisnocorrespondinginternationalstandardsandnationalstandards,includingGermanycleanwatercompanies,allPP-Rsteady-statealuminumplasticpi
4、pemanufacturersintheimplementationoftheenterprisestandarditself(withtheGermanSKZdetectionmechanismforheatingandwatersupplypipeOrdinance).2,technicalperformancecharacteristics:PP-Rsteady-statealuminumplasticpipeintothePP-Rtubeandthemetaltubeinoneoftheadvantages,atthesametimewithPP-Rtu
5、behealthandsealingandmetalpiperigidity,formingauniquesuperiorgeneralplasticpipehasspecialproperties,linearexpansioncoefficient,impervioustophysicalpropertiesofoxygen,antiUV,highstrength,hightemperatureresistancesoexcellent.2.1linearexpansioncoefficientissmall:PP-Rplasticaluminumstead
6、y-statepipelineexpansioncoefficientisordinaryPP-Rtube1/5(ordinaryPP-Rpipeis0.15mm/mK),closetothemetalpipe,thepipehasnoobviousexpansionandcontraction.Aftertheinstallation,pipeinstallationforthenextleveloflessthan40metersinlength,withoutconsideringthedeformationofthepipeline;forhorizon
7、talinstallationlengthisgreaterthantheMingpipe40meters,shouldtaketechnicalmeasurestopreventthepipelinetemperaturedeformationfortherigidriserinstallation.Ithasobviousadvantagesinthefieldofhightemperaturehotwater,heatingandventilatingandoutdoorinstallation.PracticehasprovedthatthePP-Rpl
8、asticaluminu