Dilatometer

DL 4000 Coal Dilatometer is a fully automatic system for determining the swelling properties of hard coal when heated under standard conditions: dilatation and contraction are obtained by inserting a sample of powdered coal, formed under pressure, in a narrow tube topped by a piston and reading the displacement of the piston as a function of the temperature. Features DL 4000 performs dilatometer tests according to ISO Standard 349, DIN 51 739, ISO 8264, ASTM D 5515 and ISO 23873 standards: dilatation and contraction of 2 samples, loaded in 2 tubes, are measured at the same time, by means of precision transducers. The Standard Test Method can be easily selected from the front panel before starting a test. The double furnace version productivity is considerably increased due to the reduction of the heating and cooling waiting times. All the analysis procedure, even the insertion and removal of the tubes into the furnace, is automatic: the operator needs only to load the sample, to place the tubes above the furnace and to start the system. Once started, DL 4000 will preheat the furnace, insert the tubes into the furnace, restore the start temperature, raise the temperature at uniform rate, and carry out the tests results. Furnace temperature together with the dilatation and contraction readings are displayed and printed during the test.

Preiser Dilatometer series of test instruments is used to determine expansion and contraction characteristics of coal. The fully automatic system is designed around ASTM D-5515 and ISO Standards 349 and 23873 for the Audibert-Arnu method of analysis. Dilatometer and Plastometer Expansion Kits allow the basic Dilatometer to become a multi instrument incorporating a mix of up to 4 desired Dilatometer and/or Plastometer instrument types. Each kit is supplied with its own accessories to allow each unit to act as a stand-alone system operating with one controller.

Cat No. DescriptionLG-0390The body is graduated with an arbitrary scale with 14/23 joints

Dilatometers serve the measurement of the thermal change of length of a body as a function of the temperature. About Products1Product Name Image :Dilatometer ( Thermal Expansion of Material)2Sizes available :3Raw Material Used :A tube furnace suitable for 1100 C duly insulated with high temp. Insulating bricks is mounted on the top of the cabinet. As the furnace is fitted with four V type pulley for easy movement To and Fro..4Special Features :M.S. Cabinet consisting of the following:Digital Temperature controller cum indicator 0-1200 0C resolution 1 0C. / PID controller with computer interface and software.5Applications :Lab, Research, manufacturing process for linear expansion .7Technical specification :A tube furnace suitable for 1100 0C duly insulated with high temp. Insulating bricks is mounted on the top of the cabinet. As the furnace is fitted with four V type pulley for easy movement To and Fro.Fused Silica tube or 99% alumina tube closed one end and other end being fixed to the stand. On closed end of the tube corresponding to the mid-point of the furnace tube and of the test piece, a hole is provided for thermocouple.

page 1 of 2Descriptions and specifications are subject to change without notice / Version 18 November 2010 The Edward Orton Jr. Ceramic Foundation 6991 Old 3C Highway WestOrville, OH 43082 USA / Phone: (614) 818-1330 Fax: (614) 895-5610 E-mail: Baldwin@OrtonCeramic.com Orton diffractometers are designed to measure the dimensional changes of ceramics, glasses, metals, carbon composites, cermets, minerals, and polymers as a function of temperature. The diffractometer records reversible and irreversible changes in length (expansion and shrinkage) during heating and cooling. Samples are measured for determining firing ranges and firing schedules, measuring thermal expansion ranges for glaze fits, and measuring thermal expansion ranges for R D, QC or product certification. Orton standard diffractometers Ar e used for ASST E-228, C-372, and other testing procedures to measure the Coefficient en of Thermal Expansion (CT), softening point, glass transition temperature, curie point, crystallite Ne transformation, phase transition, shrinkage, warping, bloating, sistering rate, isothermal creep, stress relaxation The standard Orton diffractometer is a digital, horizontal, single sample, compact, bench top system comprised of a furnace (for a variety of temperature ranges, including sub-ambient); a sample holder system (fused quartz or high alumina); a control/sample thermocouple; a sample displacement measuring system (probe rod and VDT sensor); a user-adjustable counterweighted pule y system to provide a constant and uniform contact load on the test sample; the Orton process controller for furnace control and data acquisition; and the Orton diffractometer software. All Orton standard systems are factory calibrated against a 1 rod of high purity, platinum, thermal expansion standard. The standard systems require 120-VAC, 15-amp, or 240-VAC 20-amp, 50/60 hertz power. Standard options include controlled atmosphere/vacuum compotents, over-temperature protection, and exchangeable furnaces for rapid sample turnaround. A sample specimen is placed between the end of the sample holder and the end of the movable probe rod. The furnace is placed over the sample, and heated according to a user defined thermal cycle. As the sample heats and cools, the sample expansion pushes against the probe rod, or the sample shrinkage pulls away from the probe rod. The probe rod is kept in constant contact with the sample by the pulley system. The probe rod transmits the amount of sample movement to the electronic displacement sensor (LVDT) which is located outside of the heated chamber. The LVDT generates an electronic signal corresponding to the change in sample length and continuously sends that signal to the Orton process controller. The process controller calculates and saves the length change data along with the sample temperature from the thermocouple located next to the sample. The PL and temperature data is downloaded to an independent computer system for real time observation and for post testing analysis

We are one of the leading Manufacturers, Exporters and Suppliers of superior quality Dilatometer. Dilatometer, offered by us, is developed by experts using advanced technology. Dilatometer is designed precisely by our specialist and experts that provides faultless service for longer time.

The most extensive selection of instruments for dilatometry for the most accurate measurements

DILATOMETER

The PROBEX dilatometer is a radially expandable borehole probe used to determine, in-situ, the modulus of elasticity of soft and moderately hard rocks. Tests run with the PROBEX can reach working pressures of 30 000 kPa. The probe is inflated hydraulically by means of a two-way ram, and deformation readings are obtained by monitoring the displacement of the twin pistons.

High Temperature Dilatometer

When it comes to the determination of linear thermal expansion in solids, liquids, powders, pastes or fibers, the DIL 402 Expedis series of pushrod dilatometers leaves no measurement problem unsolved. The interchangeable furnaces cover all applications for high-precision expansion control in many fields, including high-tech ceramic and metallic materials in the areas of material development, basic research and quality con

Horizontal Optical Dilatometer Misura ODLT for Non-Contact Thermo Mechanical Measurements The horizontal optical dilatometer Misura ODLT designed by Expert System Solutions was launched in the market after patenting in 2001. The Misura ODLT is a non-contact tool that can be used for conducting thermo mechanical measurements. The measurements can be performed further than the softening point of a material across the complete industrial firing cycles (up to 1750 C on sample). The Misura ODLT comprises three main units mounted on an optical bench - an electric furnace with sample carriage, two beams of blue light, and an observation component with two digital cameras and a recording facility. The cameras capture images of the last few hundreds microns of all the sample tips with two beams of light simultaneously without any contact. This dilatometer can handle small dimensional differences, thus making it a suitable tool for examining all materials that display reduced or considerable contractions and expansions. It is incomparable for the examination of thin materials without thickness limitations. The tool is capable of precisely measuring the coefficient of thermal expansion (CTE), not only at temperatures at which materials display elastic behaviour, but also in viscous-elastic temperature area. In addition, plenty of information about advanced materials can be collected by this tool, thus making it easier to understand behaviour of these complex materials. Key Features The main features of the Misura ODLT are as follows: Determines expansion and shrinkage curve and dilatometric softening point Establishes coefficient of thermal expansion and glass transition temperature Optical technique helps to simplify preparation of sample pieces Operates even in high temperatures of up to 1750 C on specimen with heating rates up to 30 C/min, testing materials beyond the softening point and imitate industrial firing cycles Tool software automatically aligns optical paths to the ends of the sample Dimensions of the sample do not need to be very precise Absolute measurement is possible

Dilatometer test in Progress

Dilatometer