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| Join Date | 17/07/2020 |
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Flat air-cooled xenon lamp aging test chamber
There are two options for the conventional xenon lamp aging test box on the market, one is the flat air-cooled xenon lamp aging test box, and the other is the rotating water-cooled xenon lamp aging test box.
Why do air-cooled xenon lamp aging test chambers have more flat-panel structures? However, there are also individual customers who say that their counterparts make vertical rotating air-cooled xenon lamps for them. From a professional perspective, it is not recommended to design this way, because the vertical rotating type can only use one lamp tube and one lamp tube. Generally, higher power is required, usually 6KW, but air cooling uses wind to cool the lamp tube. Generally, air cooling cannot cool the lamp with such a high power.
Commonly used air-cooled lamps are 1.5KW, 1.8KW, and the enhanced version is 2.5KW. If you use too low power and only one tube, the effect may not be achieved. If you use high-power air-cooled cooling The effect is not good and the lamp tube is easily damaged. Therefore, it is not recommended to make an air-cooled vertical rotating xenon lamp test box. This is the reason why the air-cooled xenon lamp aging test chamber has a flat structure.
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[url=https://www.qinsun-lab.com/324.html]Sunlight carbon arc aging machine (domestic)[/url]
[url=https://www.qinsun-lab.com/256.html]UV Carbon Arc weather Meter[/url]
Flat air-cooled xenon lamp aging test chamber
There are two options for the conventional xenon lamp aging test box on the market, one is the flat air-cooled xenon lamp aging test box, and the other is the rotating water-cooled xenon lamp aging test box.
Why do air-coole...See moreOct 24 '210 0You need to sign in to comment -
High and low temperature impact test chamber
[url=https://www.qinsun-lab.com/News-and-events/1374.html]UV weatherproof test chamber fluorescent lamp test standards [/url]Oct 8 '210 0You need to sign in to comment -
Fabric absorbing light and heat tester
A, the use of fabric light absorption heat tester
It is used to test the performance of textiles in light conditions to convert, absorb and store light and heat energy, making the internal energy gathering and temperature rise of the material.
Second, the fabric absorbing light and heat tester working principle
The specimen and the control sample are placed under the prescribed power light source, and the temperature sensor is used to measure the surface temperature of the specimen and the control sample respectively, and the temperature value of the measured part is recorded regularly, and the temperature rise value of the specimen and the control sample in the prescribed light time and the temperature difference between the specimen and the control sample at the end of the light is calculated.
Three, fabric light-absorbing heat test instrument features
1、High-intensity high-quality plate production surface using thermosetting powder spraying treatment, exquisite appearance;.
2, adjustable clamping method to facilitate the testing of different types of specimens;.
3, TST intelligent system detection test, test results are accurate and reliable.
4、Using servo motor drive, the test speed and test stroke are precisely controllable.
5、Equipped with a safety shield to ensure the safety of the specimen to proceed normally.
6、One key start, the test process without manual parameters, simple and convenient operation.
7、Equipped with intelligent induction system, the specimen damage automatic alarm stop.
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[url=https://www.qinsun-lab.com/News-and-events/1342.html]TABER leather wear test machine test methods and standards[/url]
[url=https://www.qinsun-lab.com/News-and-events/1343.html]Jacket clothing leather identification[/url]
Fabric absorbing light and heat tester
A, the use of fabric light absorption heat tester
It is used to test the performance of textiles in light conditions to convert, absorb and store light and heat energy, making the internal energy gathering and temperature rise of ...See moreSep 14 '210 0You need to sign in to comment -
What is a cloud PBX
Cloud PBX (Cloud-based Private Branch Exchange) is a virtual PBX system rooted on the internet, which automatically answers all calls and routes them to the right department or user extension. Traditionally, PBX systems are housed on-premises. These machines are big and need their own storage room. They also require significant capital investment, making them out of reach for smaller businesses.
The cloud changed all that. Cloud PBX is hosted in secure, remote data centers and is delivered through the internet. It provides the same call routing and management features of an on-premises PBX without the need for expensive hardware. The cloud PBX solution is also offered as a service on flexible plans, so smaller businesses can subscribe to it instead of investing heavily on an expensive on-premises system.
[url=http://en.newrocktech.com/ntshow/1159.html]What is a PBX System[/url]
[url=http://www.newrocktech.com/ntshow/1066.html]Cloud PBX [/url]
[url=http://www.newrocktech.com/]VoIP PBX[/url]
What is a cloud PBX
Cloud PBX (Cloud-based Private Branch Exchange) is a virtual PBX system rooted on the internet, which automatically answers all calls and routes them to the right department or user extension. Traditionally, PBX systems are housed on-premises. These machines are bi...See moreAug 1 '210 0You need to sign in to comment -
IPPBX device Introducing
Introducing IPPBX to connect branches and multi-branches office over internet to establish voice call. IPPBX can make inter connectivity of all medium like PRI, analog line, VOIP, GSM etc while using any resources analog phone, IP phone, PC, Laptop, smart phone etc. scalable and inter-operable with any existing set-up.
We would love to take your business communications to the next level. Our specialized system assesses the best way to route many calls simultaneously.
What is a VoIP phone
Wireless Office Communication System-Wireless IP PBX System
IP PBX Solution for Corporate Houses from
IPPBX device Introducing
Introducing IPPBX to connect branches and multi-branches office over internet to establish voice call. IPPBX can make inter connectivity of all medium like PRI, analog line, VOIP, GSM etc while using any resources analog phone, IP phone, PC, Laptop, smart pho...See moreJun 21 '210 0You need to sign in to comment -
What is Unified Communications
Unified Communications (UC) refers to a phone system that integrates (or “unifies”) multiple communication methods within a business.
Your business probably communicates in a number of ways: phone calls, video conferencing, instant messaging, email, SMS, fax – the list goes on and on.
A UC solution brings together all the ways your business communicates and lets them “talk” to each other so they can work together in one system – making your business much more efficient.
Modern office communications require connectivity, mobility, and unique features for a variety of users. And Unified Communications (UC) brings all of these advanced capabilities and more.
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[url=http://en.newrocktech.com/ntshow/995.html]How to Build a Hospitality Communications Solution[/url]
[url=http://en.newrocktech.com/show/860.html]IP PBX[/url]
What is Unified Communications
Unified Communications (UC) refers to a phone system that integrates (or “unifies”) multiple communication methods within a business.
Your business probably communicates in a number of ways: phone calls, video conferencing, instant messagi...See moreApr 27 '210 0You need to sign in to comment -
Talk about vacuum pump
Water ring vacuum pump (water ring pump) is a kind of coarse vacuum pump. The limit pressure it can obtain is 2.66-9.31kpa for single-stage pump and 0.133-0.665kpa for double-stage pump. Water ring pump can also be used as compressor, it belongs to low pressure compressor, its pressure range is (1 ~ 2) x105pa gauge pressure (under specific conditions). Water ring pump is widely used in many processes of petroleum, chemical, machinery, mining, light industry, papermaking, power, metallurgy, medicine, food and other industries, municipal and agricultural sectors, such as vacuum filtration, vacuum feeding, vacuum degassing, vacuum evaporation, vacuum concentration and vacuum moisture regain, etc Flammable, explosive gas, in addition to dust, water gas can be pumped, therefore, the application of water ring pump is increasing.
Water ring pump is composed of impeller, pump body, suction and exhaust disc, water ring formed by water in the inner wall of pump body, suction port, exhaust port, auxiliary exhaust valve, etc.
[url=https://www.evpvacuum.com/water-ring-vacuum-pump-type.html]Water Ring Vacuum Pump[/url]
[url=https://www.evpvacuum.com/dry-scroll-vacuum-pumps.html]Dry Scroll Vacuum Pump[/url]
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Talk about vacuum pump
Water ring vacuum pump (water ring pump) is a kind of coarse vacuum pump. The limit pressure it can obtain is 2.66-9.31kpa for single-stage pump and 0.133-0.665kpa for double-stage pump. Water ring pump can also be used as compressor, it belongs to low pressure ...See moreDec 28 '200 0You need to sign in to comment -
How to use screw vacuum pump
Screw vacuum pump will be affected by air leakage in the process of use. Many users think that this is a quality problem of the equipment, which has been replaced by new equipment. However, the cause of air leakage is not only the quality problem, but also the front and rear covers are different? In other words, the front and rear covers of the screw vacuum pump have different axial degrees, and the result is the same as the bearing deflection.
With the increase of the liquid ring temperature, the saturated vapor pressure also increases, which reduces the vacuum degree of the screw vacuum pump, but has no effect on the exhaust pressure? Tighten the connecting bolts and stuffing box of the screw vacuum pump, tighten the connection between the pipeline, instrument and other parts, or replace the gasket and stuffing.
For the leakage of the screw vacuum pump, putty can also be used as a temporary remedy to make the bearing deflect, so that the impeller inclines and is installed in the pump body of the screw vacuum pump. The axial clearance of single acting pump is uneven. When the impeller rotates, the side cover must have certain friction, and the side cover and the impeller end face will be scratched.
When the gas in the compression chamber passes through the increased gap, the axial gap increases, and a large amount of gas leaks into the suction chamber, thus reducing the vacuum pressure or discharge pressure of the screw vacuum pump. At this time, the bearing of screw vacuum pump must be removed for maintenance, and then installed correctly. Screw vacuum pump is a kind of pump device, which completes the suction and exhaust work produced by synchronous high-speed reverse rotation in the pump shell.
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[url=https://www.evpvacuum.com/p-en-70-ZJ_Roots_Vacuum_Pump.html]Roots Vacuum Pump[/url]How to use screw vacuum pump
Screw vacuum pump will be affected by air leakage in the process of use. Many users think that this is a quality problem of the equipment, which has been replaced by new equipment. However, the cause of air leakage is not only the quality problem, but also...See moreDec 28 '200 0You need to sign in to comment -
Scroll vacuum pump
The research of vortex vacuum pump began in the late 1980s. A vertical self rotating oil lubricated scroll water ring vacuum pump with pumping speed of 200L / min was developed. Compared with revolution type vortex vacuum pump, the radial clearance of the pump has the advantages of easy sealing and control. Compared with the vane pump, the scroll pump has higher volumetric efficiency, and the vibration and noise levels in the pump are reduced. In addition, due to its more compact structure, the weight and volume of the machine are reduced by 12% and 40% respectively. The research shows the high efficiency of the scroll vacuum pump, and puts forward the effective methods of how to eliminate the clearance volume and control the clearance. With the continuous expansion of the application of vortex vacuum pump in semiconductor industry, people began to devote themselves to the research of dry scroll vacuum pump. The difference between dry scroll vacuum pump and oil lubricated scroll vacuum pump is that there is no oil and liquid in the pump cavity. Therefore, to solve the problem of sealing and cooling in the pump is the key to the research of dry scroll vacuum pump.
The ultimate pressure that the pump can reach is 5 × 10 - 3T. It uses water cooling method to solve the lubrication and cooling problems of various parts in the pump. The research shows the feasibility of the dry scroll vacuum pump, and effectively solves the problems such as the contact caused by the thermal deformation of the moving disk and the vibration caused by the centrifugal force. Although the cooling problem of dry scroll vacuum pump can be effectively solved by using water cooling method, the structure of the cooling water circuit is more complicated. Two cooling fans are installed on the main shaft, which are respectively located at the ends of the two stationary disks. When the main shaft rotates, the fans rotate together to achieve the cooling effect on the vortex disk. At the same time, it adopts a semi closed structure to solve the cooling problem of the motor. The pump adopts a totally enclosed structure, the vortex disk is a single vortex ring structure, and the cooling fan is installed at the end of the static disk.
[url=https://www.evpvacuum.com/water-ring-vacuum-pump-type.html]Water Ring Vacuum Pump[/url]
[url=https://www.evpvacuum.com/dry-scroll-vacuum-pumps.html]Dry Scroll Vacuum Pump[/url]
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The research of vortex vacuum pump began in the late 1980s. A vertical self rotating oil lubricated scroll water ring vacuum pump with pumping speed of 200L / min was developed. Compared with revolution type vortex vacuum pump, the radial clearance of the pump has t...See moreSep 15 '200 0You need to sign in to comment -
Development and classification of imported vacuum pump oil
After many years of polishing, China's vacuum technology has made rapid development. At present, it has become an independent basic science with the continuous development of many industrial companies, such as aerospace science, vacuum coating, vacuum smelting, high energy physics, controlled thermonuclear reaction, surface research, etc. The progress of science and vacuum technology is interdependent. As a special lubricating oil for various mechanical vacuum pumps, the imported vacuum pump oil plays the functions of lubrication, sealing and cooling in the vacuum pump.
Because the mechanical vacuum pump has different models, so the vacuum pump oil must also have suitable viscosity, excellent oil-water separation, good thermal stability and oxidation stability, as low as possible saturated vapor pressure, because the quality of vacuum pump oil indirectly affects the limit pressure, pumping rate, back pressure and oil return rate of vacuum pump equipment. In recent years, with the continuous development of vacuum technology, mechanical vacuum pump develops to high speed, low noise and miniaturization. The linear velocity of the friction pair surface in the pump cavity increases, and the oil temperature rises. Because the mechanical vacuum pump oil tends to be low viscosity, it is required to maintain a low vapor pressure under the working temperature of the pump.
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[url=https://www.evpvacuum.com/zg-series-roots-blower.html]Roots Blowers[/url]
[url=https://www.evpvacuum.com/p-en-70-ZJ_Roots_Vacuum_Pump.html]Roots Vacuum Pump[/url]
Development and classification of imported vacuum pump oil
After many years of polishing, China's vacuum technology has made rapid development. At present, it has become an independent basic science with the continuous development of many industrial companies, such as aerospace scienc...See moreSep 15 '200 0You need to sign in to comment
