一、產(chǎn)品簡(jiǎn)介:
數(shù)顯砂漿收縮膨脹儀是我公司依據(jù)行業(yè)標(biāo)準(zhǔn)JGJ70-90《建筑砂漿基本性能試驗(yàn)方法》而設(shè)計(jì),是實(shí)驗(yàn)室檢測(cè)砂漿物流性能的儀器。采用數(shù)顯千分表顯示,精度0.01mm。操作簡(jiǎn)單方便。用來(lái)測(cè)定砂漿的收縮和膨脹變形量,以確定其收縮系數(shù)和膨脹參數(shù)。
Product introduction:
Digital Mortar Shrinkage Dilatometer is designed by our company based on the industry standard JGJ70-90 "Testing Methods for Basic Performance of Construction Mortar", and it is an instrument for testing mortar logistics performance in the laboratory. Digital dial indicator is used to display, the accuracy is 0.01mm. The operation is simple and convenient. Used to measure the shrinkage and expansion deformation of mortar to determine its shrinkage coefficient and expansion parameters.
二、技術(shù)參數(shù):
★標(biāo)準(zhǔn)棒長(zhǎng)度 175mm
★標(biāo)準(zhǔn)棒膨脹系數(shù) 15×10-6/℃
★位移計(jì)精度 0.01mm
★位移計(jì)量程 ±5mm
★百分表A小刻度值:0.01mm
★百分表A大量程:10mm
★測(cè)量范圍:170~180mm
★測(cè)頭球面孔半徑:R=3mm
★標(biāo)準(zhǔn)桿基長(zhǎng):175mm
★外形尺寸 220×220×510mm
Technical parameters:
Standard rod length: 175mm
★ Standard bar expansion coefficient 15 × 10-6 / ℃
★ Displacement meter accuracy 0.01mm
★ Displacement measurement range ± 5mm
★ Small scale value of dial indicator A: 0.01mm
★ Large range indicator A: 10mm
★ Measuring range: 170 ~ 180mm
★ Probe ball face radius: R = 3mm
★ Base length: 175mm
★ Dimensions 220 × 220 × 510mm
三、使用方法:
★先將標(biāo)準(zhǔn)棒置于工作臺(tái)上,擰動(dòng)調(diào)整螺絲使之近似垂直。
★將測(cè)量框架置于標(biāo)準(zhǔn)棒的頂頭,調(diào)整螺桿和螺母,使百分表對(duì)準(zhǔn)零位(或記下百分表之刻度)。
★將制作養(yǎng)護(hù)好的試件兩端擦拭凈,然后放置在工作臺(tái)上,然后把測(cè)量框架套在試件上,并左右移動(dòng)表框,使試件與測(cè)量框架的測(cè)量頭準(zhǔn)確地接觸,此時(shí)即可開(kāi)始讀數(shù),并記錄下表盤上的刻度值。
★如果實(shí)驗(yàn)不是連續(xù)進(jìn)行或?qū)嶒?yàn)歷時(shí)較久后,則在測(cè)試前須先在標(biāo)準(zhǔn)棒上校準(zhǔn)測(cè)量框架。
Third, use method:
★ Put the standard rod on the workbench first, and turn the adjustment screw to make it almost vertical.
★ Place the measuring frame on the top of the standard rod, adjust the screw and nut to make the dial indicator align with the zero position (or write down the dial indicator scale).
★ Wipe the two ends of the prepared and cured test piece, then place it on the workbench, then put the measuring frame on the test piece, and move the table frame left and right, so that the test piece and the measuring head of the measuring frame accurately contact. You can start reading and record the scale value on the dial.
★ If the experiment is not continuous or the experiment lasts a long time, the measurement frame must be calibrated on the standard bar before the test.
四、使用注意事項(xiàng):
★儀器用畢后,應(yīng)將測(cè)量框架的測(cè)量頭和百分表探拭凈,并涂以鐘表油;測(cè)試過(guò)程中,應(yīng)使百分表的測(cè)頭緩慢而平穩(wěn)地與試件接觸,不允許沖擊和碰撞,嚴(yán)禁將百分表測(cè)桿頂過(guò)大量程范圍,以免影響表的靈敏度和使用壽命。
★使用時(shí),忌用手直接與標(biāo)準(zhǔn)棒接觸,應(yīng)持外外套部分,以防止標(biāo)準(zhǔn)棒受人體手溫的影響。
★應(yīng)安放在平整的工作臺(tái)上,其四個(gè)腳應(yīng)受力均勻,切忌三點(diǎn)著力,以防儀器變形而影響精度。
★標(biāo)準(zhǔn)桿是儀器的基準(zhǔn)長(zhǎng)度單位,必須輕拿輕放,防止變形。
★百分表為精密部件,試件放置及取出時(shí)應(yīng)輕穩(wěn)仔細(xì),切勿碰撞表架及表?xiàng)U。
★每次使用完畢,應(yīng)在非油漆件表面涂少許潤(rùn)滑油,在百分表活動(dòng)零件表面涂?jī)x表油。
★粉塵濃度高的環(huán)境或較長(zhǎng)時(shí)間停用,應(yīng)采取防塵措施。