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RPT-3000W is a highly accurate instrument for analysis of curing
behavior from liquid to solid state and for practical evaluation of
physical properties.
| Vibration Analysis | ||
| When the material is cured and dried, the components, which organize the material, increase their molecular weight through a chemical reaction, called a Chemical Network. The chain molecule moves by thermals and generates a phenomenon called Yarn's Entanglement, and becomes a Physical Network. When fillers, like pigments, are added to the system, the material absorbs the fillers, although absorption depends on the materials. This is called a Physical-Chemical Networks. The effect appears in the form of a molecular increase. When the material is placed on the base plate, material absorption takes place on the base plate and becomes a Physical-Chemical Network. An increase in molecular weight causes an increase in viscosity, and when it is vibrated in a high viscosity solvent, the amplitude of vibration decrease and makes logarithmic damping ratio greater. Therefore, by evaluating the logarithmic damping ratio, the viscosity change caused by the creation of the network can be measured. With the molecular weight, even if it is due to the same network, the viscosity lowers when the temperature rises, and the logarithmic damping ratio becomes small. When the network is created, the size of the network becomes too small. When the size of the network is greater, the pendulum moves a great distance in order to crush or stretch the network. Therefore, the period of time the pendulum swings increases. However, when the network is created and the size of the network decrease, the distance of the pendulum movement shortens. By measuring the frequency, that is the time of pendulum movement, the size of the network due to the cross linking can be measured. Thus, the curing and drying conditions of the materials can be evaluated by analyzing the logarithmic damping ratio and the change of frequency. |
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| RPT | ||
| All materials become a solid state from a liquid state through some action (heat, light, time and others), and produce various physical properties. The change of phase from liquid to solid causes various problems. Due to this fact, there are cases that the expected performance design cannot be achieved and the performance of the material is lowered and changed by some environmental factor in the process. The most important evaluation item among the material evaluations is to pursue the aging change of the chemical-physical performances in the process of curing and drying from a liquid state to a solid state. The instrument developed for this evaluation purpose is a rigid-body pendulum type physical properties testing machine, model RPT-3000W. |
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| Sample of how to read a graph | ||
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Specifications
| Swing Angle(Maximum) | ±0.573 degree |
| Angle Resolution | 1.749e-5 degree |
| Swing Displacement Detection | Inductance Non – Contact Type Displacement Sensor |
| Period of Vibration | 0.05 ~ 2.000 sec |
| Logarithmic Damping Ratio | 0.001 ~ 6.000 sec |
| Test Temperature | -100 ~ +400 degree Celsius |
| Cooling System | Liquid Nitrogen |
| Measurement Time | 1 ~ 9999 minutes |
| Option | Ultraviolet Irradiation Device |
| Dimensions / Weight | Main Body : 300 × 220 × 525 / 15kg Controller : 410 × 350 × 135 / 12kg |
| Safety Device | Safety Lamp for increasing temperature (It turns on at 50 degree) |
| Power Supply | 100V AC 50 / 60Hz 550VA |
Resource & Download
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INO: Bán, Báo giá, tư vấn mua sắm và cung cấp, tư vấn sản phẩm thay thế; tương đương, hướng dẫn sử dụng, giá…VNĐ, …USD info@ino.com.vn | 02873000184 | A&D-Rigid-body Pendulum Type Physical Properties Testing Instrument (Model:RPT-3000W).
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