Porous Ceramic Channel Diameter Tester
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- 产品描述
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- Commodity name: Porous Ceramic Channel Diameter Tester
- Model: DZK
The DZK Multi-porous Ceramic Pore Diameter Tester is suitable for determining the maximum value of the capillary pore channels of multi-porous ceramics according to GB/T1967-1996 "Test Method for Pore Diameter of Multi-porous Ceramics".
Xiangke DZK Porous Ceramic Pore Diameter Tester Pore Diameter Instrument
The DKZ porous ceramic pore diameter tester is suitable for determining the maximum value of the capillary pores of porous ceramics according to GB/T1967-1996 "Test Method for Pore Diameter of Porous Ceramics". This instrument mainly consists of three parts: a gas supply cylinder, an electrical control box, and a sample fixture. It uses a precise low-range digital pressure measurement system to accurately measure the test pressure value. The test gas is compressed air or nitrogen; the sample fixture is suitable for cylindrical samples, and the fixture ensures that during the test, the gas can only pass through the capillaries of the sample and not leak from the edges of the sample
Xiangke DZK Porous Ceramic Pore Diameter Tester Pore Diameter Instrument Working Principle
This method uses the gas bubble pressure method to determine the pore size of the membrane using the principle of capillary action. The surface tension of the wetting agent affects the size of the measured pore size. According to the principle of capillary action, when a capillary with a radius of r is wetted by liquid A with a surface tension of σ, when the relative pressure P2 of the capillary liquid and the gas phase pressure P1 (liquid B is the gas phase) reach static equilibrium, the relationship between P2 and P1 can be described by the Laplace equation:
ΔP=P2-P1=2σcosθ/r where θ is the contact angle (cylindrical contact angle is 0)
When the pressure difference at both ends of the pore is greater than 2σcosθ/r, the liquid in the capillary will be removed. The gas bubble pressure method is based on this principle to determine the pore size of porous materials. In the actual measurement process, the liquid with known surface tension fully (saturated) wets the pores of the porous ceramic material (vacuum or boiling), and the pressure at one end of the porous material is fixed, while the other end uses air or nitrogen to generate a pressure difference. When the pressure difference reaches a certain value, the largest pore size of the porous material is opened first, and the pore size is calculated according to the above formula.
Main Technical Parameters1. Flow meter measurement range: 6ml～3600ml/min
2. Test pressure 0-2MPa adjustable
3. Digital pressure gauge measurement accuracy: ±1%, unit Pa
4. Standard sample specifications: Diameter: Ø30±0.5mm
5. Supply voltage: 220V 50HZ.Configuration: Includes one DKZ test host and one sample fixture.
Porous Ceramic Channel Diameter Tester
Model:
DZK
Specifications:
Specifications:
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Gross weight (KG):
The DZK Multi-porous Ceramic Pore Diameter Tester is suitable for determining the maximum value of the capillary pore channels of multi-porous ceramics according to GB/T1967-1996 "Test Method for Pore Diameter of Multi-porous Ceramics".
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InquireProduct Details
Xiangke DZK Porous Ceramic Pore Diameter Tester Pore Diameter Instrument
The DKZ porous ceramic pore diameter tester is suitable for determining the maximum value of the capillary pores of porous ceramics according to GB/T1967-1996 "Test Method for Pore Diameter of Porous Ceramics". This instrument mainly consists of three parts: a gas supply cylinder, an electrical control box, and a sample fixture. It uses a precise low-range digital pressure measurement system to accurately measure the test pressure value. The test gas is compressed air or nitrogen; the sample fixture is suitable for cylindrical samples, and the fixture ensures that during the test, the gas can only pass through the capillaries of the sample and not leak from the edges of the sample
Xiangke DZK Porous Ceramic Pore Diameter Tester Pore Diameter Instrument Working Principle
This method uses the gas bubble pressure method to determine the pore size of the membrane using the principle of capillary action. The surface tension of the wetting agent affects the size of the measured pore size. According to the principle of capillary action, when a capillary with a radius of r is wetted by liquid A with a surface tension of σ, when the relative pressure P2 of the capillary liquid and the gas phase pressure P1 (liquid B is the gas phase) reach static equilibrium, the relationship between P2 and P1 can be described by the Laplace equation:
ΔP=P2-P1=2σcosθ/r where θ is the contact angle (cylindrical contact angle is 0)
When the pressure difference at both ends of the pore is greater than 2σcosθ/r, the liquid in the capillary will be removed. The gas bubble pressure method is based on this principle to determine the pore size of porous materials. In the actual measurement process, the liquid with known surface tension fully (saturated) wets the pores of the porous ceramic material (vacuum or boiling), and the pressure at one end of the porous material is fixed, while the other end uses air or nitrogen to generate a pressure difference. When the pressure difference reaches a certain value, the largest pore size of the porous material is opened first, and the pore size is calculated according to the above formula.
Main Technical Parameters
1. Flow meter measurement range: 6ml～3600ml/min
2. Test pressure 0-2MPa adjustable
3. Digital pressure gauge measurement accuracy: ±1%, unit Pa
4. Standard sample specifications: Diameter: Ø30±0.5mm
5. Supply voltage: 220V 50HZ.
Configuration: Includes one DKZ test host and one sample fixture.
Relevant Specifications
Relevant Specifications
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