DIL0806 A/B material thermal expansion coefficient tester (A is a horizontal structure, B is a vertical structure)

DIL0806 A/B material thermal expansion coefficient tester adopts computer technology and is intelligentPIDAdjustment technology Modular design, detecting and controlling the entire experimental process of physical displacement and temperature, and can achieve offline operation and online automatic testing. Run in ChineseWindowsEnvironment with a friendly Chinese user interface; The offline state is intelligently detected by the embedded system. This instrument is mainly used to determine the high-temperature thermal expansion coefficient of carbon fiber and its products, metal alloy materials, glass, ceramics, refractory materials, and other polymer composite materials. It has the characteristics of full automation, easy testing, easy operation, data printing and output, experimental data archiving, rich database, and easy modification and retrieval; This provides modern testing methods for factories and research institutes to test the performance of ceramic and refractory products, as well as for scientific research and teaching.

Main technical requirements:
1. Measurement section:
(1) The basic system of the thermal expansion instrument is available in two types of structures: vertical and horizontal. It is equipped with an integrated measurement amplifier and an inductive displacement sensor alloy measuring head. It has a vacuum sealed structure, a constant temperature water bath protection sensing base, and an adjustable measuring head position; High precision adjustment of contact pressure; Measurement range: 5000 μ m; Resolution: 0.1 μ m; Contact pressure of measuring head: 15... 45cN; Adjustable range of sample length: 25mm-50mm; The sample size and temperature range depend on the selected sample holder, furnace, and protective tube; Diameter 5-10mm
Sample supports include quartz, corundum (AL2O3), graphite, etc
(2) High temperature tubular furnace with heater, S-type control thermocouple and fan, temperature range for use:
-196 ℃ -200 ℃, -40-600 ℃, room temperature -1000 ℃, room temperature -1600 ℃, room temperature -1700 ℃,
Multiple specifications to choose from, including room temperature up to 2000 ℃.
(3) High temperature tubular electric furnaces have protective tubes for gas flow with supporting flanges; A low-temperature liquid nitrogen tank with cooling is used to store samples and supports. The center of the inductive displacement meter is moved by the piston rod, generating a potential difference. The signal is amplified by an amplifier and sent to a data acquisition device for processing and analysis by a computer.
(4) Furnace power supply 2.0kVA, with casing;
(5) The sample length of the bracket device is 0... 50mm, with a maximum sample diameter of 10mm, including a sleeve, push rod, and sample thermocouple; (Divided into K, E, R, S, B, tungsten rhenium, etc. according to different temperatures)
(6) Gas outlet reverse pipe, equipped with corrosion-resistant high-quality steel valves and gas plugs, including supports;
(7) Constant temperature circulating water bath with cooling function, cooling power 260W (at 20 ℃) (heating power 2000W), temperature stability ± 0.01K, multifunctional display, equipped with 10 meter tube and connecting components, power supply 230V/50/50Hz.
2. Control, measurement, and data collection:
Thermal analysis system controller, used for data acquisition and temperature control, including the following functional blocks:
Dual analog input, resolution+/-2.000.000 bits; The input quantity is optically isolated; Pre amplifier with range switch;; Temperature programming can be performed for different types of temperature sensors; The linear heating/cooling rate can be adjusted from 0.01 to 999.99K/min, and the constant temperature period can vary from 0 to 99 hours and 59 minutes; Simulate PID temperature controller with STC function, room temperature compensation, and thermocouple; Disconnect protection; The temperature value and all functions can be displayed through software on an external computer; Connect the computer to PCI or USB 2.0.
3. Software system:
(1) A thermal analysis software package for data acquisition, storage, and analysis in a 32-bit environment under MS WINDOWS XP. Features: graphical user interface, integrated detailed help system;
(2) A PCI board that can be connected to a USB port with a 2-meter cable.
4. Standard samples and vacuum devices:
(1) Fused silica standard sample, d6 × 25mm, with expansion coefficient table;
(2) Vacuum pumping system, two-stage vane rotor pump (4.2m3/h), ventilation valve, shut-off valve, mechanical pressure gauge, and oil mist separator;