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What is the difference between strengthened glass and tempered glass

Strengthenedglassgenerallyreferstotemperedglass,andthereisnodifferencebetweenthetwo.Temperedglass(temperedglass/reinforcedglass)belongstosafetyglass.Toughenedglassisactuallyakindofprestressedglass.Inordertoimprovethestrengthofglass,chemicalorphysicalmethodsareusuallyusedtoformcompressivestressontheglasssurface.Whentheglassbearsexternalforce,itfirstoffsetsthesurfacestress,soastoimprovethebearingcapacityandenhancethewindpressureresistance,coldandheatresistanceandimpactresistanceoftheglass.PayattentiontodistinguishitfromFRP.

16 2021/08

What is the difference between strengthened glass and tempered glass

Glass industry data in July

InJuly,theglassfuturespriceshowedastrongperformance,andthefuturespricebrokethroughthehistoricalhighof3again,reporting3163yuan/ton,anincreaseofnearly13%.InlateOctober,ZhengzhouCommodityExchangeissuedanannouncementtoimposetradingrestrictionsonsomeglassfuturescontractstocurbspeculativedemand.Restrictedbythepoliciesofregulatoryauthorities,glassfutureshaveexperiencedshort-termadjustment.However,undertheguidanceofitsstrongfundamentals,futurespricesquicklystoppedfallingandstabilized. Supplyanalysis Intermsofoutput,accordingtothedatareleasedbytheNationalBureauofstatistics,inJune2021,thedomesticoutputofflatglasswas87.07millionheavyboxes,ayear-on-yearincreaseof10.3%;FromJanuarytoJune,theoutputofflatglasswas508.41millionboxes,ayear-on-yearincreaseof10.8%.Thankstohigherproductionprofits,domesticproductionlinesresumedtoincreaseproductionthisyear,resultinginanincreaseinoutput.Accordingtothemonitoring,asofJuly29,takingcoaltogasasanexample,thepriceoffloatglasswas2800yuan/tonandtheprofitwasabout1445yuan/ton;Takingnaturalgasasanexample,thepriceoffloatglassis3100yuan/tonandtheprofitis1387yuan/ton;Takingpetroleumcokeasanexample,thepriceoffloatglassis3106yuan/tonandtheprofitis1788yuan/ton.

16 2021/08

Why is tempered glass called safety glass?

Afterthetoughenedglassisbroken,thefragmentswillbreakintouniformsmallparticlesandthereisnosharpcornerlikeacommonglassknife.Therefore,itiscalledsafetyglassandiswidelyusedinautomobiles,interiordecorationandhigh-risewindows.Usually,afterordinaryglassisbroken,thesharpknifeshapedsharpcorneriseasytocutchildrenorcolliders,causingpersonalinjury.Themaindifferencebetweentemperedglassandordinaryglassiswhethertheglassbecomessmallparticlesorknifeshapeafterbreaking.However,intheprocessIinspection,itisundoubtedlyunrealistictousethisdestructiveinspection.SohowcanweknowwhethertheselfCboughttemperedglass?Thishastobeanalyzedfromthemanufacturingprincipleoftemperedglass.Temperedglassisobtainedbycuttingordinaryannealedglassintotherequiredsize,heatingittoanearsofteningpoint,andthencoolingitquicklyandevenly.Aftertempering,theglasssurfaceformsuniformcompressivestress,whiletheinteriorformstensilestress,whichgreatlyimprovestheperformanceofslopeglass.Thetensilestrengthismorethan3timesthatofthelatterandtheimpactresistanceismorethan5timesthatofthelatter.Itispreciselybecauseofthisfeaturethatthestressfeaturehasbecomeanimportantsigntoidentifythetruetemperedglass,thatis,thetemperedglasscanseecolorstripesattheedgeoftheglassthroughthepolarizer,andblackandwhitespotscanbeseenonthesurfaceoftheglass.Polarizercanbefoundincameralensorglasses.Payattentiontotheadjustmentoflightsourceduringobservation,soitiseasiertoobservethatthebendingstrengthoftemperedglassis4~5timesthatofordinaryglass.Thebendingstrengthof5mmthicktemperedglasscanusuallyreach152mpa.Theimpactstrengthisabout1.53~3timesthatofordinaryglassinChinaandabout4timesthatofordinaryglassinforeigncountries.Forexample,227gsteelballglasssample(300x300x5mm)fallsfreelyataheightof2.5~3Mabovethecenterwithoutbreaking,whiletheglassisusuallybrokenbelow1m.Thedeflectionoftemperedglassis3~4timeslargerthanthatofordinaryglass.A1200X350x6mmtemperedglasshasamaximumbendingstrengthof100mm.Temperedglasshasacertainwaterpressureresistance.

16 2021/08

Why is tempered glass called safety glass?

There are many kinds of glasses on the market. Which type is more resistant to high temperature

Asthesayinggoes,youneedtodrinkeightglassesofwateraday,whichalsofullyshowsthatwateristhesourceoflifeanditsimportanceisself-evident.Everyoneneedstodrinkwatereverydaytosupplementwaterandmaintainthenormalmetabolismofthebody.Thewatercup,asthecarrierofwater,isalsoaveryimportantexistence.Nowadays,mostofthewaterglassesonthemarketaremainlyglasseswithawidevariety.Therefore,howtoselectahigh-temperatureresistantandanticrackingglassisamatterofconcerntomanypeople. Infact,themethodisverysimple.Afterloadinghotwater,thesurfaceofhigh-temperatureresistantglassisnothot,andthesurfaceofnonhigh-temperatureresistantglassishotafterloadinghotwater.Someglassesadoptdouble-layerdesign,whichcannotonlyinsulatebutalsokeepwarm. Ifyoubuyaglassthatisnotresistanttohightemperatureathome,youdon'thavetothrowitaway.Itcanbeusednormallyaslongasitishandledproperly.Theusetemperaturerangeofordinaryglasswhichisnotresistanttohightemperatureis"-5℃to70℃.Thereasonwhyitwillbreaksuddenlyisthatitwillsuddenlyencountercoldandheat,resultinginlargetemperaturedifferenceandunevenexpansionbetweenvariouspartsoftheglass.Whenthisunevendifferenceistoolarge,theglassiseasytoburst.Therefore,whenusingordinaryglass,beforepouringboilingwater,Putalittlewarmwaterfirst,andthenaddboiledwaterafterthecupiswarmtoreducethetemperaturedifferencebornebytheglass,sothereisnoproblem. HightemperatureresistantglassgenerallyusesGaopengsiliconglass.Thespecialmaterialhasaverylowcoefficientofthermalexpansion.Itcannotonlybearthehightemperatureofabout400degreesCelsius,butalsobeartheinstantaneoustemperaturedifferenceofabout150degreesCelsius.Itiseasytouse. Whenpurchasingacup,ifitisahigh-temperatureresistantglass,therewillberelevantmarksonthecup,indicatingtheusetemperatureandscopeofapplication.Remembernottobegreedywhenbuying.Somenominalheat-resistantglassesareactuallyordinaryglasses.

13 2021/08

There are many kinds of glasses on the market. Which type is more resistant to high temperature

How to clean the glass lid

1.Flourhasastrongadsorptioneffect,whichcaneffectivelyabsorbandtakeawaytheoilstainonthepotcover.Thespecificoperationstepsaretoevenlysmeartheflouronthesurfaceofthepotcover.Theamountofflourdependsonthedegreeofoilstain.Generally,thepotcovercanbecovered. 2.Afterstandingfor10minutes,sprinkleasmallamountofediblesalt.Thefunctionofediblesaltistoincreasefrictionandkillbacteria. 3.Finally,wipethepotcoverwithawetcloth.Thefocusisonthecornerswithheavyoilpollution.Afterwiping,rinseittwicewithcleanwater,andthepotcoverwillbeasbrightasnew.

16 2021/08

What is the difference between plexiglass and ordinary glass

Plexiglassisapopularbuildingdecorationmaterialrecently,butsomepeoplethinkthatthereisnodifferencebetweenplexiglassandgeneralglassfromtheliteralunderstanding,whichisnotcorrect.Inordertobetterletmorepeopleunderstandtheprofessionalknowledgeofthiskindofproductsandfacilitatethedistinctionbetweenproducts,let'sfirstunderstandthedifferencesbetweenthetwo: 1.Hightransparency:plexiglassisthemosthigh-qualitytransparentpolymermaterialatthisstage.Thelighttransmittanceexceeds93%,whichishigherthanthatofglass.Ordinaryglasscanpassonly0.7%UVlight,butplexiglasscanpass74%. 2.Lightweight:thedensityofplexiglassis1.16kg/dm3.Thenetweightofmaterialsofthesamesizeisonlyhalfofthatofordinaryglassand44%ofthatofmetalaluminum(belongingtolightmetals). 3.Highmechanicalstrength:therelativemolecularweightofplexiglassisabout2million.Itisalong-chainpolymermaterialchemical,andthemolecularchainisverysoft.Therefore,thecompressivestrengthofplexiglassisrelativelyhigh,andthetensilestrengthandimpactresistanceare7~16timeshigherthanthatofordinaryglass.Therefore,theplexiglassprocessedbyRashincanbeusedasbulletproofglassandasthecockpitcoveronmilitaryaircraft. 4.Convenientforproductionandprocessing:plexiglasscannotonlybecutbyCNClatheanddrilledbydrillingmachine,butalsobebondedintovariousshapesofequipmentsuchasacetoneandchloroform.Itcanalsobeprocessedintovariousproductssuchasaircraftcockpitcoveranddenturesleeveandtoothsupportbyplasticmoldingsuchasinjectionmolding,injectionandextrusion. 5.Performancedistinction:generally,ifthethicknessofglassexceeds15cm,itwillbecomeemeraldgreen,andtheobjectscannotbeseenclearlythroughtheglass.Plexiglassseparatedbyameterthick,butalsocanclearlyseetheoppositeitems.Becauseitslighttransmissionperformanceisverygood,andultravioletlightcanpenetrate,itisoftenusedtomakeopticalequipment.

12 2021/04

What is the difference between plexiglass and ordinary glass