FAQ

Vacuum and pressure measuring unit converter

1. After the sample is placed, the two heat insulation plugs should be placed in the correct position. Select a small pressure reducer and connect them as shown in the figure below; 2. Adjust the pressure regulator to the relative pressure ≦0.05Mpa. Open the intake valve and observe the absolute pressure gauge at the intake end. Adjust the flow, observe bubbles, and protect the atmosphere normally.

When cracks occur after ≧5mm, the shrinkage of fiber in non-refractory layer is generally caused by the erosion of volatiles of sintered materials (strong acid and alkali, or lead vapor and vanadium pentaoxide). In actual use cases, some components added in zirconia products of sintered materials and volatiles of dyeing agent of customers are easy to cause cracking of fiber products when caking ... Enter into detail

High purity corundum furnace tube (or corundum products), while making use of its high purity and high temperature quality characteristics, we must follow the inherent characteristics of corundum material (thermal shock resistance is relatively poor, not cold and hot resistance), careful operation in the use process, improper operation will cause the furnace tube or crucible burst (will not be used, please purchase carefully) in order to improve the service life of high purity corundum products, To reduce the loss caused by damage caused by improper use, the following suggestions are put forward for users' reference: ... Enter into detail

Setting of cleaning and sintering curve of spinneret: A Vacuum sintering: 1. The vacuum degree of the cleaning furnace should reach 100 ~200Pa during sintering, and the temperature should rise from room temperature to 350℃ in 60 minutes. The vacuum will start when the temperature reaches 100℃; ... Enter into detail 2. Keep warm at 350℃ for 1 hour. 3. Raise the temperature from 350℃ to 450℃ for another 30min. 4. Keep the temperature at 450℃ for 2 hours. 5. When the temperature in the furnace is less than 100℃, open the intake valve at the temperature and let the furnace.

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Multimeter before use must first check the quality of the multimeter; Adjust the dial of the multimeter to the AC voltage level "AC~" or "V~". Measure the socket in the room with the two markers respectively. If the voltage displayed is between 180 and 240V.......... Enter into detail

High purity quartz furnace products are special industrial technology glass made of high purity silica, which is a very good basic material. Quartz products have a series of excellent physical and chemical properties such as: 1. High temperature resistance. The softening point temperature of quartz glass is about 1730℃. It can be used at 1150℃ for a long time and the maximum temperature for a short time can reach 1450℃. ... Enter into detail.

In order to improve the service life of high purity corundum furnace tube and reduce the loss caused by damage caused by improper use, the following suggestions are put forward for users' reference: 1. The maximum use temperature of high purity corundum furnace tube should not exceed 1700℃, and the long-term use temperature should be below 1650℃. 2. The high temperature area of high purity corundum furnace tube should avoid mixing with impurities, especially metal debris and non-metallic mineral raw materials containing K2O, Na2O, CaO, SiO2, etc., otherwise it is easy to form low temperature eutectic and corundum tube damaged.......... Go into detail.

Zirconia denture sintering furnace adopts silicon-molybdenum rod as the heating element. Due to the different components of zirconium block and dyeing agent added by various manufacturers, the zirconium block volatile matter in the high temperature state will cause damage to the protective film (SiO2) outside the heating element so that spalling, which causes discoloration and sintering not transparent.......... Enter into detail