Photocoupler

The choice of adsorbed gas for surface area analysis depends on the purpose of the analytical test. The gas used to characterize the surface area may not be the best choice for studying adsorption phenomena.


Is Xenon Krypton still Nitrogen?


Rhodium is chemically inert under normal conditions. It does not combine with other elements or compounds. Some materials, such as organic materials, metal powders, have a surface area of ​​less than 1 m2/g and can only adsorb a small amount of gas. When testing these samples, it is advantageous to increase the difference between the amount of gas entering and the amount of residue after equilibrium. At liquid nitrogen temperature, the saturation pressure of helium is approximately 1/300 of the nitrogen saturation pressure (helium: 2.5 torr; nitrogen: 760 torr). Therefore, there is only 1/300 of helium molecules in the free space relative to nitrogen at the same relative pressure. Since the number of helium and nitrogen molecules is close when a monolayer is formed, it is shown that this ratio accounts for a large increase in the proportion of the amount of intake air compared to nitrogen.

Products Recommended:


High-precision three-station side-by-side automatic mesoporous micropore analyzer


Product introduction:


JW-BK300 series high-precision three-station parallel-type automatic mesoporous micropore analyzer, based on JW series aperture analyzer, independently developed a new generation of high-end microporous analyzer. The core hardware of this instrument adopts international advanced brand, equipped with "turbomolecular pump" and pressure sensors of different ranges such as 1000Torr, 10Torr and 1torr. Through the full modular design and accurate application of microporous analysis model, it realizes micro Accurate analysis of the hole, the minimum aperture can be measured up to 0.35nm, the accuracy, accuracy and stability of the test results reach the level of imported similar instruments, the cost performance is very high, very suitable for activated carbon, activated alumina, molecular sieve, zeolite, MOF materials, etc. Research and application of pore nano-powder materials.



Technical Parameters:


Instrument model: JW-BK300 high precision three station side-by-side automatic mesoporous microporous analyzer


Mesoporous micropore analyzer

Principle method: static capacity method, low temperature nitrogen adsorption;


Mesoporous micropore analyzer

Test function: isothermal adsorption desorption curve; single point, multi-point BET specific surface area; Langmuir specific surface area; external surface area (STSA); total pore volume, average pore size; BJH mesoporous pore volume and pore size distribution analysis; Plot method, as-plot method, DR method, MP method micro-well conventional analysis; HK method, SF method micro-hole accurate analysis; NLDFT method pore size distribution analysis; true density test; gas adsorption amount, adsorption heat test; mass input method test ;


Mesoporous micropore analyzer

Test gas: nitrogen, oxygen, hydrogen, argon, helium, carbon dioxide, methane, etc.;


Mesoporous micropore analyzer

Test range: specific surface 0.0005m2 / g to no upper limit, aperture 3.5 Ã…-5000 Ã…;


Mesoporous micropore analyzer

Repeatability: specific surface area ≤ ± 1.0%, pore size ≤ 0.2 Å;


Mesoporous micropore analyzer

Test efficiency: average surface area per 10 min; mesoporous, macroporous analysis average 1-1.5 hours; microporous analysis average 10-16 hours per sample;


Mesoporous micropore analyzer

Analytical station: 3 completely independent sample analysis stations, which can be degassed in the same position;


Mesoporous micropore analyzer

P0 position: 3 completely independent P0 stations, real-time monitoring;


Mesoporous micropore analyzer

Lifting system: 3 sample analysis stations are equipped with 2 sets of independent lifting systems in situ, electric control, automatic control, and no interference with each other;


Mesoporous micropore analyzer

Vacuum system: multi-channel parallel vacuum system, cartridge type modular design, patented technology of vacuum pumping speed adjustment valve system, can be automatically adjusted within the range of 2-200ml/s;


Mesoporous micropore analyzer

Vacuum pump: external imported two-stage rotary vane mechanical vacuum pump (automatic anti-return oil) + built-in imported turbomolecular pump, ultimate vacuum degree up to 10-6Pa;


Mesoporous micropore analyzer

Degassing system: 3 sample analysis stations are equipped with 3 in-situ and in-situ degassing stations: 3 independent heating packages, 3 independent temperature control systems, programmable temperature control, and programmable temperature steps up to 10 steps. Simultaneous configuration of external ectopic 4-station vacuum degassing pretreatment system


Mesoporous micropore analyzer

Degassing temperature: room temperature - 400 ° C, accuracy ± 1 ° C;


Mesoporous micropore analyzer

Pressure sensing: original imported capacitive film multi-pressure sensor, 1000 torr (133.3KPa), 10torr (1.333KPa), 1torr (0.1333KPa) or 0.1torr (0.01333KPa), accuracy ≤ ± 0.15%;


Mesoporous micropore analyzer

Dividing range: P/P0 10-8-0.998;


Mesoporous micropore analyzer

Pressure control: Balanced pressure intelligent control method, pressure controllable interval <0.1KPa, the highest pressure point can be automatically controlled;


Mesoporous micropore analyzer

Data acquisition: Ethernet data acquisition, fast acquisition speed, high precision, compatible with Windows 7/XP 32/64 bit system;



Mesoporous micropore analyzer

Application areas:


● Catalyst material: activated alumina, molecular sieve, zeolite, etc.;


●Environmental protection field: adsorbent such as activated carbon;


● Nanomaterials: nano ceramic powder (alumina, zirconia, yttria, silicon nitride, silicon carbide, etc.), nano metal powder (silver powder, iron powder, copper powder, tungsten powder, nickel powder, etc.), nano high Molecular materials, carbon nanotubes, etc.;


● Coal mining industry: coal, ore, rock, shale gas, coalbed methane, etc.;


● Other materials: microfiber, porous fabric, composite materials, etc.

Paper Covered Flat Aluminium Wire

About Paper Covered Flat Aluminium Wire

Paper wrapped winding wire is made up of bare from oxygen free Copper Rod or electrical aluminum rod by drawing or extruding processing and wrapped by insulation materials.paper covered single wire , with insulation wrapping in the outside layer

As per Conductor Material:Copper , aluminum
As per Inner Conductor: Paper wrapped bare

Insulation thickness:Double paper covered (DPC) orTriple Paper Covered (TPC) ,According to Customer`s requirements

Packaging DetailsInner packing : Wooden bobbin
Outer packing : Wooden pallet and stretch film
Or according to our custormers' requirements

Paper Covered Flat Aluminium Wire

Production Scope

Conductor of Paper wrapped wire
Bare Wire Round Wire
:
Φ1.00 mm-Φ5.00 mm
Rectangular Wire thickness a
:
1.00 mm-5.60 mm
Width b
:
2.00 mm-16.00 mm
Conductor of Composite wires
Max wrapping layers once: 24 layers for Paper Covered Wire
4 layers per wire and 16 layers outside for composite wires
We could offer products of special requirements on conductor size, insulation layer thickness, or wire number of the composite.



Electrical Wire,Paper Covered Flat Aluminium Wire,Covered Magnet Aluminum Wire,Covered Magnet Aluminum Winding

HENAN HUAYANG ELECTRICAL TECHNOLOGY GROUP CO.,LTD , https://www.huaonwire.com

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