Vitrified Grinding Wheels mean grinding
wheels in ceramic bonded. Vitrified grinding wheels can be superabrasive
grinding wheels like diamond grinding wheel or CBN Grinding Wheels. It also can
be abrasive grinding wheels such as white aluminum oxide grinding wheel,pink
grinding wheel,silicon carbide grinding.
Vitrified grinding wheel is only one type
of bond, which is ceramic, it can be in any type of abrasive.
The main ingredient of vitrified bond
are vitreous material with low melting point, such as borosilicate glass, lead
glass, etc.It is widely used in various grinding methods such as outer
circle, inner circle, flat surface, centerless, etc. It is the most commonly
used bonding agent for abrasive tools.
Vitrified bond is characterized by
high chemical stability, almost can work in a variety of cooling media,
small elastic deformation, brittle, can be made into a variety of hardness
levels of grinding tools to adapt to the processing of various hardness of the
workpiece. Vitrified bond has good self-sharpening.
The grinding efficiency of single crystal
diamond with vitrified bond grinding wheel is higher than metal bond
grinding wheel. The wear ratio is very small and the processing cost is
low. Therefore, the grinding efficiency of single crystal diamond with ceramic
bond grinding wheel can be greatly improved.
Vitrified Grinding Wheels,Vitrified Wheels,Vitrified Diamond Wheel,Vitrified Bond Grinding Wheel Henan Kemei Abrasives Co.,LTD , https://www.grindingwheelsmanufacturer.com
Submersible pump routine maintenance
Submersible pump routine maintenance. Daily check the power cord for damage, the absolute prohibition of leakage submersible pump operation. Check the pump body daily damage, to ensure that the motor does not leak electricity at work. After the operation, should promptly clean the debris attached to the pump, the pump rinse. To ensure the normal operation of submersible pumps, must follow the following requirements. Before using the submersible pump, use a megger to check the motor insulation resistance, the minimum value of which can not be less than 50MΩ. Water immersion motor should open the irrigation plug, fill the clean water and then tighten the plug, irrigation plugs can not screw off directly into the well. Before use, check whether the cable is broken or broken. If damaged, it should be replaced in time to prevent leakage. Submersible pump should be injected into the pump before entering the water, and then idle for 1-2 minutes, and start twice, check the start and idle is normal, the steering meets the requirements. If the turn to the contrary, any two-phase wiring can be exchanged. Check whether there are cracks Yang pipe, the connection is solid. Submersible pump down and lifting, must not allow the dead cable, in order to avoid damage to the cable or the connector at the disconnection, resulting in unnecessary accidents. Should use wire or pallets to go down and lift. The power supply voltage should be controlled within ± 5% of the rated voltage so that the motor can work normally. If the voltage is too low or too high, the motor can not continue to use, so as to avoid the motor over-voltage or under-voltage work under long-term damage. Submersible pump dive into the water should be suspended vertically, not oblique. Into the water to move the water level of 5 meters is appropriate. Submersible pumps can not deliver water or mud with high sand content. Submersible pump actual lift should be 0.8-1.1 times the rated head use to improve unit efficiency, save energy, while avoiding motor overload. Submersible pump motor wiring must be solid, so as to avoid motor phase loss of motor burn. Cable must always check for cracks, scratches and other conditions, there are timely replacement or repair. Oil immersion motor oil spills in the event, should promptly to the manufacturer or repair point repair, replacement of sealing components. Flooding motor should always clean the motor cavity sand, replace the motor cavity water. Submersible pump operation six months after the maintenance check, replace the damaged parts. Submersible pump, the flooding motor should be placed within the clean water motor, the pump clean, oiled anti-rust, and placed vertically on dry place.