R & D

Equipment Overview This system conforms to JIS-R3103-1 “Glass softening point test method” (ISO 7884-6:1987, ASTM C338). The principle of measurement, preparation of samples, etc. are inherited from JIS, and direct reading is automated. The measurement program is operated on a PC, and the softening point measurement results can be confirmed on the PC. Features (technical)

Equipment Overview This equipment complies with JIS-R3103-2 “Strain Point Test Method for Glass” and JIS-R3103-1 “Softening Point Test Method for Glass”, and automates each of them. Based on the glass softening point automatic measuring device and the glass slow cooling point/strain point automatic measuring device, the power supply and temperature controller are shared as one

Equipment Overview This is a device for measuring the viscosity of glass in the strain point and slow cooling point regions, and complies with ISO 7884/4 and 7884/7 by employing the beam bending method, which is specified in the JIS standard “JIS R-3103-2, Method for measuring slow cooling point and strain point by fiber stretching

Equipment Overview In the conventional annual measurement in the range of 103 to 1011Poise ( 102 to 1010Pa.s), three different types of equipment had to be used because the measurement principle and measurement systems were spread over three different systems. In addition, it was troublesome to combine the results of each measurement in order to

Equipment Overview Generally called an inner cylinder rotational viscometer, this device measures viscosity by rotating the inner cylinder in the molten liquid of a container that serves as the outer cylinder and measuring the torque generated. Features This system uses the highly stable VT-550 (manufactured by Haake, Germany) for automatic measurement, data processing, and other

Equipment Overview Several years have passed since we changed the measurement system of the sphere pull-up type viscosity measurement from the weighted deformation of a viscosity balance to the speeded deformation of a balance with a sphere suspended (patent published in March 1993), and this method is now generally accepted. The sphere pull-up type high-temperature

Equipment Overview This device solves the drawbacks of the conventional ball lifting method, such as troublesome balance operation and individual differences in measurement results. Using an electronic balance (load cell load cell), the balance body is raised and lowered at a constant speed, and viscosity is determined by measuring the viscous resistance applied to the

Equipment Overview In conventional viscosity measurement, measurement in the range of 104Pas ( 105Poise ) is difficult with the rotary method, and preparation of samples was not easy with the softening point measurement method according to JIS-R3103-1. This device continuously measures 103 to 108 Pa.s ( 104 to 109 Poise) using the parallel plate measurement

Equipment Overview A rotating cylinder viscometer is used to measure the low viscosity range of glass. In this method, a cylinder is immersed in a molten sample and the viscosity is determined by measuring the torque generated by rotating the inner or outer cylinder. In this case, a certain amount of sample is required, and