GG-17 glass with low coefficient of expansion, better able to withstand high temperature differential change, so the pump can withstand high temperature than the same type of pump and longer service life. The pump is suitable for the electronics industry, such as tubes. Picture tube. X-ray tube, and semiconductor monocrystalline silicon smelting purification, high-boiling oil distillation purification separation, fluorescent lamps, vacuum flask high vacuum exhaust equipment. First by rotating the vacuum pump to pump 10-2Pa diffusion pump oil is heated to boiling at high speed from the jet of oil vapor stream continuously to bring the gas molecules within the system to the pump side of the arm bend bulbs at the assembly until the gas density reached Mechanical vacuum pump working range and was drawn, so as to gradually obtain high vacuum. Water ring vacuum pump (referred to as water ring pump) is a rough vacuum pump, it can get the ultimate vacuum of 2000 ~ 4000Pa, Series Atmospheric Injector W-type reciprocating vacuum pump up to 270 ~ 670Pa. Water ring pump can also be used as a compressor, called the water ring compressor, is a low pressure compressor, the pressure range of 1 ~ 2 × 105Pa gauge pressure. Water ring pump was originally used as a self-priming pump, and then gradually used in petroleum, chemical, machinery, mining, light industry, medicine and food and many other industrial sectors. In many industrial processes, such as vacuum filtration, vacuum water diversion, vacuum feed, vacuum evaporation, vacuum concentration, vacuum resurgence and vacuum degassing, water ring pump is widely used. Due to the rapid development of vacuum application technology, water ring pumps have gained much attention in the area of ​​rough vacuum. As the water ring pump gas compression is isothermal, it can be extracted flammable and explosive gases, in addition to pumping dust, water-containing gas, therefore, water ring pump applications are increasing. In the pump body with the right amount of water as the working fluid. When the impeller rotates clockwise, the water is thrown around by the impeller. Due to the centrifugal force, the water forms a closed ring of approximately equal thickness depending on the shape of the pump chamber. The inner surface of the lower part of the water ring is just tangential to the hub of the impeller. The upper inner surface of the water ring is just in contact with the top of the blade (in fact, the blade has a certain insertion depth in the water ring). At this moment, a crescent-shaped space is formed between the impeller hub and the water ring, and the space is divided into a plurality of small cavities equal to the number of the blades by the impeller. If the lower part of the impeller 0 ° as a starting point, then the impeller 180 ° before the rotation of the small chamber volume from small to large, and the end of the suction port communicating, when the gas is inhaled, when the inhalation end of the small cavity When the impeller continues to rotate, the small cavity becomes smaller and the gas is compressed; when the small chamber communicates with the exhaust port, the gas is discharged outside the pump. In summary, the water ring pump is based on changes in the volume of the pump to achieve suction, compression and exhaust, so it belongs to the varactor vacuum pump. Roots pump in the pump chamber, there are two "8" -shaped rotor mutual vacuum pump requires foreline pump. Roots pump ultimate vacuum in addition to depend on the pump structure and manufacturing accuracy, but also depends on the foreline pump ultimate vacuum. In order to increase the pump ultimate vacuum, Roots pumps can be used in series. Roots pumps work like Roots blowers. Due to the constant rotation of the rotor, the drawn gas is sucked into the space v0 between the rotor and the pump housing through the air inlet and then discharged through the air outlet. Since inhaled v0 space is completely closed state, so the gas in the pump chamber is not compressed and expanded. However, when the top of the rotor turns over the edge of the exhaust port, when the v0 space communicates with the exhaust side, since the pressure of the exhaust side gas is higher, a part of the gas bounces back into the space v0 to make the gas pressure suddenly increase. When the rotor continues to rotate, the gas is discharged outside the pump. Roots vacuum pump introduction First, the concept and classification of Roots vacuum pump: 1, concept: Roots vacuum pump is a rotary volumetric vacuum pump. Its structure is evolved from a Roots blower. First appearing in Germany in 1944, it was used as a mechanical booster pump to accommodate vacuum melting systems with large pumping speeds in the 10-1000 Pa pressure range. 2, classification: Roots vacuum pump according to the different working pressure range, divided into: (1), the straight row of atmospheric vacuum Roots pump; (2), the vacuum Roots pump (mechanical booster pump); , High vacuum multistage Roots pump. The largest amount of domestic vacuum Roots pump. Second, Roots vacuum pump features: Compared with other oil-sealed vacuum pump has the following characteristics: 1, in a wide range of pressure has a larger pumping speed; 2, the rotor has a good geometric symmetry, so the vibration is small, running smooth. Rotor and between the rotor and the shell are gaps, without lubrication, friction loss, can greatly reduce the drive power, which can achieve high speed; 3, the pump chamber without oil seal and lubrication, can reduce the oil vapor on the vacuum System pollution; 4, pump chamber without compression, no exhaust valve. The structure is simple and compact, insensitive to the dust and water vapor in the gas being sucked; 5, the compression ratio is low, the hydrogen pumping effect is poor; 6, the rotor surface is more complex shape curve cylinder, processing and inspection more difficult. Roots vacuum pump in recent years at home and abroad to get faster development. In smelting, petrochemicals, electrician, electronics and other industries have been widely used. JZJS roots pump, water ring vacuum pump unit JZJS vacuum unit is Roots pump-based pumps (including the middle pump), water ring pump for the foreline pump vacuum access to equipment. A full set of units by the Roots pump, water ring pumps, pipes, valves, steam separator, electric control box and other components. Different types of Roots pumps, water ring pump combination can be a different Roots pump water ring pump vacuum unit can be applied to different working conditions. From the two (a Roots pump, a water ring pump) series of units to four (three Roots pump, a water ring pump) series of vacuum units, you can get 650 ~ 10-1Pa Different ultimate vacuum to meet different process requirements. Due to the characteristics of the Roots pump (ie, there is a certain gap between the rotor and the pump body, there is no lubricating oil in the pump cavity) and the characteristics of the water ring pump (ie, there is a certain gap between the impeller and the pump casing and water is adopted as the pump body and the impeller Between the sealing medium), so the most prominent feature of this model unit is suitable for the removal of dust containing a large amount of condensable and with a certain corrosive gases. At the same time, it avoids the deficiency of condensable gas in the other vacuum units on emulsifying the vacuum oil of the mechanical pump and can eliminate the pollution of the vacuum system caused by the vacuum pump oil. The unit is widely used in vacuum smelting, degassing of molten steel, vacuum freeze-drying, vacuum distillation, vacuum concentration, vacuum attraction and so on. Especially for petrochemical, textile, paper, food and medicine industries. According to actual needs, the vacuum unit can be designed into multiple sets of parallel, in order to improve the pumping capacity of the unit.
Place of Origin: Jiangmen, China (Mainland)
Brand Name: LANSHI
Abrasive: Diamond
Size: standard size or custom size
Hole/Bore: 12,50 mm
Packaging & Delivery
Packaging Details: Carton.
Delivery Time Inner 3-10 days .According to the quantity of your order
Frequently Asked Questions(FAQ)
1, Are you a manufacturer?
Yes,we are manufacturer since 1994, 23 years production experience.
2, Do you have the right of Export?
Yes, we have the right of Import and Export.
3, What`s your payment term?
T/T 30% deposit, T/T 70% before shipment.
4, What is the minimum order quantity?
No MOQ, Just 1 pcs for testing is acceptable.
5, Can you provide OEM?
Yes,we can produce as your drawing also we can printing on the wheels as your requirement.
6, which modes of transport can you provide?
As your request, we can arrange shipment by Express ,by air or by sea etc.
Any problems,please feel free the contact with me .Thank you!
We have 3 types of Diamond cup wheel,there are Segmented Diamond Wheel, Inner Segmented Diamond Wheel, Used for Double edge machine as position 1 and position 2 for processing thick glass.Both of them have good sharpness.and the third type,no segmented ,used for Straight line edge machine for processing thin glass .
Place of Origin: Jiangmen, China (Mainland)
Brand Name: LANSHI
Abrasive: Diamond
Size: standard size or custom size
Hole/Bore: 12,50 mm
Packaging & Delivery
Packaging Details: Carton.
Delivery Time Inner 3-10 days .According to the quantity of your order
Frequently Asked Questions(FAQ)
1, Are you a manufacturer?
Yes,we are manufacturer since 1994, 23 years production experience.
2, Do you have the right of Export?
Yes, we have the right of Import and Export.
3, What`s your payment term?
T/T 30% deposit, T/T 70% before shipment.
4, What is the minimum order quantity?
No MOQ, Just 1 pcs for testing is acceptable.
5, Can you provide OEM?
Yes,we can produce as your drawing also we can printing on the wheels as your requirement.
6, which modes of transport can you provide?
As your request, we can arrange shipment by Express ,by air or by sea etc.
Any problems,please feel free the contact with me .Thank you!
Diamond Cup Wheel,Diamond Wheel,Segmented Diamond Wheel,Inner Segmented Diamond Wheel
LANBAO ABRASIVES CO.,LTD , http://www.lanbaoabrasives.com