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儀器網(wǎng)> 資料庫(kù)>水泥膠砂流動(dòng)度測(cè)定儀,NLD-3型水泥膠砂流動(dòng)度測(cè)定儀

水泥膠砂流動(dòng)度測(cè)定儀,NLD-3型水泥膠砂流動(dòng)度測(cè)定儀

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2018-09-15 10:00 1496閱讀次數(shù)

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水泥膠砂流動(dòng)度測(cè)定儀,NLD-3型水泥膠砂流動(dòng)度測(cè)定儀一.概述:NLD-3型水泥膠砂流動(dòng)度測(cè)定儀由ZG建筑材料科學(xué)研究院與我公司合作開發(fā)的,ZL號(hào):03208785.3,用于2005年發(fā)布的新標(biāo)準(zhǔn)GB/T2419-2005《水泥膠砂流動(dòng)度測(cè)定方法》的流動(dòng)度試驗(yàn),是該標(biāo)準(zhǔn)**指定用儀器。二.主要參數(shù)振動(dòng)部分總重量:4.35kg±0.15kg振動(dòng)落距:10mm±0.2mm振動(dòng)頻率:1Hz振動(dòng)次數(shù):25次桌面參數(shù):材料:鑄鋼,工作面鍍硬鉻直徑:φ300mm+1mm三.安裝調(diào)試儀器必須可靠接地。儀器用膨脹螺栓固定在基座上。儀器基座由混凝土澆筑而成(或磚混基礎(chǔ)),底面尺寸約為400mm×400mm,高約690mm。在基座和儀器機(jī)架之間宜填墊圈(見圖八.基礎(chǔ)安裝圖),可通過調(diào)整墊圈高度調(diào)節(jié)桌面水平。儀器安裝后,其桌面沿彼此成直角的兩個(gè)直徑方向測(cè)量時(shí)均應(yīng)成水平。跳桌安裝好后,采用流動(dòng)度標(biāo)準(zhǔn)樣(JBW01-1-1)進(jìn)行檢定,測(cè)得的流動(dòng)度值如與給定的標(biāo)樣流動(dòng)度值相差在規(guī)定范圍內(nèi),則該跳桌的安裝及使用性能合格。四.水泥膠砂流動(dòng)度測(cè)定儀,NLD-3型水泥膠砂流動(dòng)度測(cè)定儀使用方法試樣的制作與填裝方法按GB2419-2005和GB17671-1999的有關(guān)規(guī)定,也可參照本說明書附錄。1、使用前,請(qǐng)用檢規(guī)檢查落距。2、將插頭接入計(jì)數(shù)器后對(duì)應(yīng)孔內(nèi),將計(jì)數(shù)器接通電源。3、如跳桌在24小時(shí)內(nèi)未被使用,先空跳一個(gè)周期25次。五.維護(hù)與保養(yǎng)使用完畢后,應(yīng)擦凈儀器,清除儀器周圍殘留膠砂,用輕油稍稍潤(rùn)滑推桿、桌面和凸輪表面。長(zhǎng)期不用,儀器應(yīng)防塵保護(hù),控制器放置在包裝盒內(nèi)。如儀器不計(jì)數(shù),請(qǐng)檢查接近開關(guān)是否松動(dòng)、與凸輪間隙是否為1mm~2mm,如有偏離或松動(dòng),請(qǐng)調(diào)整間隙后緊固。六.結(jié)構(gòu)簡(jiǎn)圖水泥膠砂流動(dòng)度測(cè)定儀結(jié)構(gòu)簡(jiǎn)圖1.機(jī)架2.接近開關(guān)3.電動(dòng)機(jī)4.凸輪5.軸承6.推桿7.圓盤桌面8.搗棒9.模套10.截錐圓模11.檢規(guī)12.控制器七.水泥膠砂流動(dòng)度測(cè)定儀,NLD-3型水泥膠砂流動(dòng)度測(cè)定儀電氣原理圖八.基礎(chǔ)安裝附錄膠砂的制備按GB/T17671-1999有關(guān)規(guī)定(水泥:標(biāo)準(zhǔn)砂:水=1:3:0.5)進(jìn)行。將拌好的水泥膠砂分兩層迅速裝入模內(nèi),**層裝至截錐圓模高約三分之二處,用小刀在相互垂直兩個(gè)方向劃5次,再用搗棒自邊緣至ZX均勻搗壓15次。接著裝第二層膠砂,裝至高出截錐圓模約20mm,同樣用小刀在相互垂直兩個(gè)方向劃5次,再用搗棒自邊緣至ZX均勻搗壓10次。搗壓力量應(yīng)恰好足以使膠砂充滿截錐圓模。搗壓深度,**層搗至膠砂高度的二分至一,第二層搗至不超過已搗實(shí)的底層表面。搗棒搗壓順序按GB/T2419-2005《水泥膠砂流動(dòng)度測(cè)定方法》中6.3條的規(guī)定。搗壓完畢,取下模套,將小刀傾斜,從中間向邊緣分兩次以近水平的角度抹去高出截錐圓模的膠砂,并擦去落在桌面上的膠砂。將截錐圓模垂直向上輕輕提起移去。立即按計(jì)數(shù)器的“啟動(dòng)”按鈕,開動(dòng)跳桌,完成一個(gè)周期25次跳動(dòng)。跳動(dòng)完畢,用300mm量程的卡尺測(cè)量膠砂底面互相垂直的兩個(gè)方向擴(kuò)展直徑,計(jì)算平均值,取整數(shù),用mm單位表示。該平均值即為水泥膠砂流動(dòng)度。從膠砂加水開始到直徑測(cè)量結(jié)束,試驗(yàn)應(yīng)在6min內(nèi)完成。水泥膠砂流動(dòng)度測(cè)定儀,NLD-3型水泥膠砂流動(dòng)度測(cè)定儀水泥膠砂流動(dòng)度測(cè)定方法適用于火山灰質(zhì)硅酸鹽水泥、復(fù)合硅酸鹽水泥和摻有火山灰質(zhì)混合材料的普通硅酸鹽水泥、礦渣硅酸鹽水泥。儀器:膠砂攪拌機(jī):符合GB177有關(guān)規(guī)定水泥膠砂流動(dòng)度測(cè)定儀:簡(jiǎn)稱跳桌。試模:用金屬材料制成,由截錐圓模和模套組成。截錐圓模內(nèi)壁應(yīng)光滑,尺寸為:高度60±0.5mm,上口內(nèi)徑:70±0.5mm,下口內(nèi)徑:100±0.5mm,下口外徑:120mm。模磁與截錐圓模配合使用。搗棒:用金屬材料制成,直徑為20±0.5mm,長(zhǎng)度約200mm。搗棒底面與側(cè)面成直角,其下部光滑,上部手柄滾花??ǔ撸毫砍虨?00mm,分度值不大于0.5mm小刀:刀口平直,長(zhǎng)度大于80mm。水泥膠砂流動(dòng)度測(cè)定方法T0506-94 需備置儀器                                      品種規(guī)格數(shù)量單價(jià)備注行星式膠砂攪拌機(jī)1臺(tái)2200 JJ-5電動(dòng)跳桌1臺(tái)1200 NLD-3卡尺200mm1把180 小刀1把15 新ISO標(biāo)準(zhǔn)砂1包120 Cementmortarfluidityanalyzer,theNLD,-3cementmortarfluidityTesterI.Overview:NLD,-3cementmortarfluiditytesterandmycompanybytheChinaBuildingMaterialsAcademy,developedincooperationwiththepatentnumber:03208785.3,for2005releasednewstandardsGB/T2419-2005cementThesandflowdeterminationmethod"flowtest,thestandardonlyspecifiestheinstrument.MainparametersVibrationpartofthetotalweight:4.35kg±0.15kgVibrationfalldistance:10mm±0.2mmVibrationfrequency:1HzVibration:25timesDesktopparameters:Material:caststeel,facehardchromeplatingDiameter:φ300mm+1mm(C)installationandcommissioningTheinstrumentmustbereliablegrounding.Instrumentwithexpansionboltsonthebase.Instrumentbasepouringconcrete(orbrickandconcretebase),basesizeofabout400mm×400mm,theheightofabout690mm.Betweenthebaseandinstrumentrack首ldfillthewasher(seeFigureeightbasicinstallationdiagram),thedesktoplevelbyadjustingthewasherheightadjustment.Instrumentsetup,desktopalongeachotheratrightanglestothedirectionofthetwodiametermeasurementsshallbehorizontal.Jumptablesinstalled,fluidityofstandardsamples(JBW01-1-1)test,themeasuredflowvaluegivenstandardflowvaluedifferencewithinprescribedlimits,thejumptableinstallationusingperformancequalified.4useOftestspecimensandfilledwiththerelevantprovisionsofGB2419-2005andGB17671-1999,canalsorefertotheAppendixofthismanual.1,priortouse,withacheckcompliancecheckoffthedistance.Correspondingholeintheplugaccesscounter,thecounterpower.3,suchasjumptableswithin24hoursnotinuse,thefirstemptyjumpacycle25times.V.CareandMaintenanceAfteruse,wipetheinstrument,removeresidualmortararoundtheinstrumentalittlelubricationputter,desktop,andthecamsurfacewithalightoil.Unusedforlongperiods,theinstrument首ldbedust-proofprotection,thecontrollerisplacedinthebox.Iftheinstrumentdoesnotcount,checktheproximityswitchisloose,withthecamgapis1mm~2mm,anydeviationorloose,adjustthegapaftertightening.Six.StructurediagramStructuraldiagramofcementmortarfluiditytesterRack2proximityswitches3.Motor4.Cambearing.PutterDiscDesktoppoundstick9diesets10.Coneroundmold11.Checkregulation12.ControllerElectricalschematicEight.ThebasisofinstallationAppendixPreparationofmortartheGB/T17671-1999relevantprovisions(cement:standardsand:water=1:3:0.5).Willbedividedintotwolevelsofthemarinatedcementmortarquicklyintothemold,mountedinthefirstlayertothetruncatedconeroundmoldabouttwo-thirdsoftheprogramfivetimeswithaknifeintwomutuallyperpendiculardirections,andthenthepoundstickedgetothecenterofuniformpoundpressure15times.Theninstalledasecondlayerofmortar,filledtoabout20mmhigherthanthetruncatedconicalrounddie,thesameprogramintheperpendicularinbothdirectionsforfivetimeswithaknife,thenpoundstickspoundpressureevenlyfromedgetocenter10.Traceamountofpressure首ldbejustenoughtomakethemortarfulloftruncatedconicalrounddie.Poundpressuredepthofthefirstlayerofpoundtoahighdegreeofmortartoasecondlayerofpoundtonomorethantampingtheunderlyingsurface.PoundsticktopoundthepressureoftheorderaccordingtoGB/T2419-2005"cementmortarfluidity"Determinationoftheprovisionsof6.3.Poundpressureiscompleted,removethediesets,knifetiltanglefromthemiddletotheedgepointsoftwonearlyleveltoerasethecircularmodeofthetruncatedconeabovethemortar,andwipethemortarfellonthedesktop.Truncatedconicalroundmoldverticallyupwardslightlyfiledtoremove.Immediatelycounterthe"Start"buttontostartthejumptable,completeacycleof25beating.Thebeatiscompleted,theexpansiondiameter300mmrangeofcalipertomeasuretwoperpendiculardirectionstotheundersideofthemortar,calculatetheaverage,rounded,expressedinmmunits.Theaverageisthefluidityofcement.Fromamortar,addwatertothediametermeasurementtotheendofthetest首ldbecompletedin6min.TestmethodforfluidityofcementmortarPozzolanacement,CompositePortlandcementandmixedwithPozzolanicmaterialsofordinaryportlandcement,slagcement.Instrument:Mortarmixer:GB177relevantprovisionsCementmortarfluiditytester:referredtoasthejumptable.Tryout:madeofmetalmaterial,composedofconeroundmoldanddiesets.Thetruncatedconeroundmoldinnerwall首ldbesmooth,dimensionsare:heightof60±0.5mm,catchyinnerdiameter:70±0.5mmportinternaldiameter:100±0.5mm,undertheportouterdiameter:120mm.Magneticmodeusedinconjunctionwiththeconeroundmold.Rammingrods:madeofmetalmaterialwithadiameterof20±0.5mm,alengthofabout200mm.Poundrodbottomandsideatrightanglestothelowerpartissmooth,theupperhandleisknurled.Caliper:Measuringrangefor200mm,thescalevalueisnotgreaterthan0.5mmKnife:knife-edgestraight,lengthgreaterthan80mm.DeterminationofthefluidityofcementT0506-94NeedtopreparetosettheinstrumentNumberofvarietiesandspecificationsPriceNotePlanetary-typemortarmixer1,2200JJ-5NLD,1200,electricjumptable1-3Caliper200mm1,180Knife1the15NewISOstandardsandofapackage120

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