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The measurement program operation is performed on a PC, and the results of the softening point measurement can similarly be confirmed on the PC.
This device complies with JIS-R3103-1 "Glass Softening Point Test Method" (ISO7884-6:1987, ASTM C338), inheriting the measurement principles and sample preparation directly from JIS, and has been automated for direct reading.
For managing molding and slow cooling temperatures.
This device is automated according to JIS-R3103-2 "Test Method for Glass Strain Point" and R3103-1 "Test Method for Glass Softening Point." Based on the automatic measurement devices for glass softening point and glass annealing point/strain point, it shares a power supply and temperature controller as a single unit, and performs automatic operation via a PC to determine each measurement value.
Quality control of glass adhesives and viscosity measurement in the working temperature range.
In conventional glass viscosity measurements, the range of 10^4 Pa.s (10^5 poise) is difficult to measure with rotational methods, and the sample preparation for the softening point measurement method according to JIS-R3103-1 was not easy. This glass viscometer is a device that continuously measures from 10^3 to 10^8 Pa.s (10^4 to 10^9 poise) using the parallel plate measurement method, which heats and applies pressure to samples with parallel surfaces. [Reference] Hiroshi Shiraishi, R. Meister: Report No. 868 of the Tohoku University Institute of Mineral Processing and Metallurgy, (1982)
For the measurement of the glass transition point, strain point, and the viscosity in that region.
This viscometer is a device for measuring the viscosity in the glass transition and strain point regions, employing the beam bending method and conforming to ISO 7884/4 and 7884/7. In the JIS standards, it is listed as a standard in "Measurement Methods for Glass Transition and Strain Points by Fiber Stretching Method JISR 3103-2" (Appendix 1).
For extensive glass viscosity measurement
In viscosity measurement, the conventional range of 10^3 to 10^11 Poise (10^2 to 10^10 Pa.s) spans three measurement principles, necessitating the use of three different devices. Additionally, there was the hassle of connecting each measurement result to obtain the desired temperature-viscosity characteristic curve. This device overcomes these issues and aims for rationalization as a single unit. "References" Hiroshi Shiraishi et al.: Journal of the Japan Institute of Metals, Vol. 60, No. 2 (1996) 184-191
For the inspection of optical distortion in glass materials.
This is a notice from Opt Corporation regarding the "Glass Testing Machine - Glass Strain Measurement Device."
The conventional equipment required a lot of technical skill for applying loads and reading changes in samples. This device solves that problem.
This viscometer is automated and complies with JIS-R3103-2 "Measurement Method for Softening Point and Strain Point by Fiber Stretching Method." The measurement of the glass strain point is determined by suspending a glass thread with a diameter of 0.65 mm and a length of 100 mm in a circular furnace using a quartz supporter, and measuring the change in elongation under a temperature drop condition with a load of approximately 1 kg applied.
We will conduct quality control of the manufacturing process and products (measurement of the glass transition temperature).
This device complies with JIS-R3103-1 "Glass Softening Point Test Method" (ISO 7884-6:1987, ASTM C338) and inherits the measurement principles and sample preparation directly from JIS, while automating the direct reading process. Additionally, the measurement program operation is conducted via a touch panel, and the measurement results can be printed out from a printer.
For measuring temperature and electrical resistance under the conditions of electric melting.
This is a device for measuring the electrical conductivity (resistivity) of glass melts at high temperatures. The measurement of the electrical conductivity of the melt is performed using a two-electrode method, but this method is said to have many sources of error. This device uses parallel plate electrodes, and since the sample sandwiched between them is small in quantity, the distance between the electrodes is small, resulting in almost no error in temperature measurement. Reference: Ceramics Association Journal: Terai, Wakabayashi 91 [7] 1983
