Epoxy Anti - Static Level Coating
Scope of adaptation:
Generally 5 years or more
Technical index:
project
index
Drying time
Table dry
≤4
Hard work
≤24
Adhesion (grade)
≤I
Pencil hardness
≥2H
Impact resistance
40 Pass
Flexibility
3mm Pass
Wear resistance(750g/500r,weightlessness,g)
≤0.03
Water resistance
48 hours no change
Resistant to 10% sulfuric acid
56 days no change
Resistance to 10% sodium hydroxide
56 days no change
Gas-resistant, 120% "
56 days no change
Surface resistance
105-108
Volume resistance
105-108
Epoxy Anti - Static Level Coating Epoxy Anti - Static Level Coating,Anti-Static Epoxy Topcoat,Epoxy Topcoat Material,Epoxy Finish Antistatic Material,Epoxy Antistatic Self-Leveling Floor Jiangmen Kasole Building Materials Co., LTD. , https://www.kasole-paint.com
Performance characteristics:
1, excellent anti-static lasting effect, the use of static black carbon fiber manufacturing,
2, dust-proof, moisture-proof, wear-resistant;
3,Smooth surface.
1,Base surface treatment;
2,Brush seal primer
3,Laying copper foils
4,Trowel coated epoxy conductive coating
5,Grinding, vacuuming
6,Roll coating anti static epoxy coating
Problems and Countermeasures of High Pressure Gear Pumps
Three major problems of high-pressure gear pump is the leakage, trapped oil and radial hydraulic pressure imbalance, these three issues affect the performance and service life of the gear pump, so a variety of gear pumps are taken Different structural measures to solve these problems. Here we talk about high-pressure gear pump problems and their solutions! 1. Leakage Leakage is an unavoidable problem of hydraulic pumps. There are axial leakage, radial leakage and meshing leakage in gear pump's internal leakage. 1) Axial leakage The gap between gear end face and end cap is axial clearance. The leakage caused by axial clearance is axial leakage. Because of the short leakage path and large leakage area, the leakage amount of axial leakage is the largest, accounting for 75% ~ 80% of the total leakage amount. Large axial clearance, large amount of leakage, reduced volumetric efficiency; axial clearance is too small, although the amount of leakage decreases, but will increase the mechanical friction loss, thus reducing the mechanical efficiency. Therefore, gear pump must strictly control the axial clearance to ensure that the total efficiency can not be too low. 2) Radial leakage The gap between the top surface of the gear tooth and the pump body is the radial clearance, and the leakage caused by the radial clearance is the radial leakage. Due to the long radial leakage path, so the leakage is small, accounting for 15% to 20% of the total leakage. 3) Leakage of meshing wire The meshing gap between the teeth of the two gears is the metaphorical gap, and the leakage caused by the meshing gap is the leakage of the meshing wire. The smallest amount of leakage, the total leakage of 4% to 5%. 2. Because of the oil trapped in the oil pump, the overlap coefficient of gear meshing must be greater than 1, that is, the former pair of gear teeth should not be disengaged and the latter pair of gear teeth must enter into meshing, so that the two pairs of gear teeth mesh together to form A sealed space, the sealed space is not connected to the suction chamber, and not connected to the drain chamber is called the closed volume. 3. Radial hydraulic unbalance gear pump work, because the oil discharge pressure is greater than the suction pressure, from the discharge chamber to the suction chamber, the top circle gear radial radial pressure gradient is linear, resulting in radial imbalance. Through analysis we can see that we must take certain measures in the structure to reduce the radial force of the gear pump, thereby extending the life of the gear pump. The steps taken are as follows. (1) reduce the size of the drain port, so that high-pressure oil on the gear area reduced, thereby reducing the radial force on the gear. (2) Increase the radial clearance properly Increase the clearance between the tip circle and the hole in the pump body to balance the unbalanced radial force. However, increasing the radial clearance will increase the leakage, reducing the volumetric efficiency, so the pressure pump should not preclude the use of this method. These are some problems on the high-pressure gear pump problems and the measures that can be taken for these problems, I hope you can keep these issues firmly in mind, if you follow a similar problem, you can easily solve. Further reading: IFAT China Guangzhou exhibition industry leaders building water pump manufacturers ranking article belongs to Internet industry (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: lindj (QQ / WeChat:) Starting: http://beng.liuti.cn/ (Service Hotline:)