Fann35六速旋轉(zhuǎn)粘度計

簡介：fann35六速旋轉(zhuǎn)粘度計（進口） 以及我們的35系列粘度計（國產(chǎn)），是質(zhì)量的粘度計，適合與鉆井液行業(yè)，壓裂液行業(yè)，瓜爾膠行業(yè)，如果更換精密彈簧，特別適合于黃原膠行業(yè)，成為黃原膠行業(yè)的六速旋轉(zhuǎn)粘度計。另外我公司提供常用維修配件及維修服務(wù)。

北京科氏力科學(xué)儀器有限公司我公司提供：fann35六速旋轉(zhuǎn)粘度計（進口） 以及我們的35系列粘度計（國產(chǎn)）如果需要請和我們聯(lián)系。

是測試鉆井液流變性的儀器，流變性是指鉆井液流動和變形的特性，該特性通常是由不同的流變模式及其參數(shù)來確定的，常用的流變模式為賓漢和冪率模式，其中賓漢模式的參數(shù)為塑性粘度和動切力；冪率模式的參數(shù)為流性指數(shù)和稠度系數(shù)。

Fann35系列粘度計是一種直接讀數(shù)型粘度計，有6速和12速兩種型號，使用50Hz或者60Hz電源。標(biāo)配電源是115V，但是所有的型號在使用過程中需要配備220/230的電源轉(zhuǎn)換器。

外旋同軸圓筒型旋轉(zhuǎn)粘度計將待測泥漿充滿內(nèi)外筒之間的環(huán)形空間。當(dāng)外筒以一定速率旋轉(zhuǎn)時可進行粘度測量。外筒旋轉(zhuǎn)對漿液產(chǎn)生一個粘滯拽力，該力使內(nèi)筒出現(xiàn)轉(zhuǎn)矩，傳遞給連接內(nèi)筒的精密彈簧發(fā)生偏轉(zhuǎn)，測量出偏轉(zhuǎn)角度與儀器的測試常量做比較。該測試系統(tǒng)可以真實模擬工業(yè)生產(chǎn)過程中遇到的流動工藝過程。

外旋同軸圓筒型旋轉(zhuǎn)粘度計可以測量粘度值，比如Fann35型粘度計，給定剪切速率測剪切力。這是牛頓流體的一種線性關(guān)系，也就是剪切力與剪切速率的比值是一條直線。在很多情況下，當(dāng)非牛頓流體的流變性接近牛頓流體時，也可用這種粘度計測量粘度值。記錄下來的粘度值是35型粘度計的一條直線或者是牛頓標(biāo)準(zhǔn)值，這說明如果樣品的流變特性是非牛頓直線，就不能使用該計算方法測量。這種情況下Fann35的讀數(shù)盤和轉(zhuǎn)子-浮子的讀數(shù)應(yīng)該用另外一種非線性的剪切力/剪切速率方法計算，可以接近流體的特性。

在儀器使用標(biāo)準(zhǔn)轉(zhuǎn)子、浮子和扭簧以300rpm的轉(zhuǎn)速旋轉(zhuǎn)時，設(shè)定牛頓流體的粘度值為百分厘泊（或）。其他速率下的粘度值可通過刻度盤讀數(shù)獲得。塑性流體的近似粘度值測試方法見6B部分。

選擇不同的轉(zhuǎn)速或使用不同的轉(zhuǎn)子-浮子組合能改變剪切速率的范圍。簡單更換多種扭簧擴大剪切力的范圍，也增加了測試流體的種類。

The FANN? Model 35 viscometer are direct reading instruments which are available in six speed and 12 speed designs for use on either 50 Hz or 60 Hz electrical power. The standard power source is 115 volts but all of the models may be fitted with a transformer which makes operation with 220/230 volts possible.These are true Couette coaxial cylinder rotational is cometer since the test fluid is contained in the annular space (shear gap) between an outer cylinder and the bob. Viscosity measurements are made when the outer cylinder, rotating at a known velocity, causes a viscous drag to be exerted by the fluid. This drag creates a torque on the bob, which is transmitted to a precision spring where its deflection is measured and then compared with the test conditions and the instrument's constants. This system permits the true simulation of many of the significant flow process conditions encountered in industrial  processing.

Viscosity as measured by a Couette type viscometer such as the Model 35 is a measure of the shear stress caused by a given shear rate. This relationship is a linear function for Newtonian Fluids, i.e. a plot of shear stress vs. shear rate is a straight line. In many instances, while the fluid of interest may not be Newtonian, its rheology is near enough to Newtonian that this viscometer can be used and the viscosity calculated as though it were Newtonian. It should be noted that the recommended calibration of the Model 35 is a linear or Newtonian calibration. This means that if the sample fluid characteristics are extremely Non-Newtonian the linear method of calculating the viscosity cannot be used. In this case the Model 35 dial reading and speed along with the dimensional data on the rotor and bob used will have to be calculated

using an appropriate formula for a non-linear shear stress / shear rate relationship that closely fits the characteristics of the fluid.These instruments have been designed so that viscosity in centipoise (or milli-Pascal seconds) of a Newtonian fluid is indicated on the dial with the standard rotor, bob, and torsion spring operating at 300 rpm. Viscosities at other test speeds may be measured by using multipliers of the dial reading. A simple method of close approximation of viscosity in a plastic fluid, such as a drilling fluid is described in Section

6B. The range of shear rates may be changed by selecting rotor speed and using various rotor-bob combinations. A variety of torsion springs are available and designed to be easily interchanged in order to broaden shear stress ranges and allow the measuring of viscosity in a wide variety of fluids.

我公司另外供應(yīng)：

泥漿測試儀器：六速旋轉(zhuǎn)粘度計ZNN-D6 fann 35A；六速旋轉(zhuǎn)粘度計加熱套；冷凝套；粘度計用恒溫器；高溫高壓失水儀及其工具配件（安全提手、省力起子、安全泥漿杯安裝座、閥桿、各類進口國產(chǎn)高溫密封圈濾網(wǎng)、濾紙、濾盤）；常溫常壓失水儀；中壓失水儀；打氣筒失水儀；高溫高壓膨脹量測定儀；常溫常壓膨脹量測定儀；高溫高壓粘度計；高溫高壓流變儀；吳茵混調(diào)器；變頻高速攪拌機；大功率攪拌機；大容量變頻高速攪拌機5L；fann破乳電壓測定儀；CST毛細管吸收測定儀；PSTProduction Screen Tester濾網(wǎng)流動性測試儀；fann2100極壓潤滑儀；高溫高壓粘附系數(shù)測定儀；高溫滾子爐；老化罐；高溫防腐聚四氟內(nèi)襯；堵漏儀；高溫高壓堵漏儀；高溫高壓動態(tài)堵漏儀；PPT滲透性堵漏測試儀（PPA）無滲透濾失儀；高溫高壓無滲透濾失儀；高溫高壓可視砂床濾失儀；粘度計校正裝置；現(xiàn)場實驗箱；維修及耗材。

油井水泥測試儀器：高溫高壓稠化儀；高溫高壓養(yǎng)護釜；高溫高壓流變儀；常溫常壓稠化儀；進口國產(chǎn)12速旋轉(zhuǎn)粘度計；恒速攪拌器；超聲波水泥強度測試儀；壓力水泥強度測試儀。

壓裂液測試儀器：瓜爾膠攪拌器；WY-2B吳茵混調(diào)器；瓜爾膠粘度計；壓裂液高溫高壓流變儀；壓裂液高溫高壓粘度計。

黃原膠測試儀器：黃原膠攪拌器；黃原膠六速旋轉(zhuǎn)粘度計；黃原膠高溫高壓粘度計；黃原膠高溫高壓粘度計；高溫滾子爐；老化罐；聚四氟內(nèi)襯；中壓失水儀；高溫高壓失水儀。

壓裂液支撐劑測試儀器：體積密度測定儀；破碎室；分減器；分樣器；盒式取樣器；釬式取樣器；耐氫氟酸抽濾裝置；振動篩；標(biāo)準(zhǔn)篩；振動分析儀；

纖維素改性淀粉測試儀器：旋轉(zhuǎn)粘度計；變頻高速攪拌器；大功率攪拌器；大容量纖維素變頻高速攪拌器；高溫滾子爐；老化罐；聚四氟內(nèi)襯；中壓失水儀；高溫高壓失水儀。

化學(xué)試劑類：英國評價土；粘度計校正用標(biāo)準(zhǔn)油20cp、50cp、100cp、200cp、500cp、1000cp、2000cp、3000cp、5000cp；凹凸棒土；標(biāo)準(zhǔn)土；鈉基準(zhǔn)土；鈣基準(zhǔn)土；堵漏劑；增粘劑；高膨脹量鈣基準(zhǔn)土；各類標(biāo)準(zhǔn)液；緩沖液；ph緩沖液；加熱油；導(dǎo)熱油；壓力油，振動篩校正用標(biāo)準(zhǔn)顆粒,IMERYS系列材料。