I. Material Introduction
Polyurethane is a polymer with repeating urethane chain segments in its molecular structure. It is gradually polymerized from isocyanate monomers and compounds containing active hydrogen. Due to the presence of a large number of polar bonds in its molecular structure and stable hydrogen bonds between molecules, it has advantages such as good physical and mechanical properties and wear resistance.
II. Material Advantages
- Wide adjustability of properties: Many physical and mechanical property indicators can be varied within a certain range by selecting raw materials and adjusting the formula, thus meeting different requirements of users for product properties.
- Good wear resistance: Especially under working conditions with lubricating media such as water and oil, its wear resistance is often several to dozens of times that of ordinary rubber materials.
- Processability: Polyurethane elastomer products can be machined, such as turning, milling, and drilling, within a certain hardness range.
- Resistance to oil, ozone, aging, radiation, and low temperature: It has good resistance to oil, ozone, aging, radiation, and can withstand low temperatures.
III. Comparison with High - Chrome Cast Iron and Rubber
| Comparison with High - Chrome Cast Iron |
Comparison with Rubber |
| Good wear resistance |
Good wear resistance |
| Light weight |
Good tear resistance |
| Elasticity and good resilience |
Good resilience |
| Good impact resistance |
Can be dyed |
| Good corrosion resistance |
Can be machined |
| Good vibration resistance |
Wide adjustable range of properties |
IV. Comparison Results
- Comparison with high - chrome cast iron:
- The wear resistance of polyurethane is 5.3 times that of high - chrome cast iron. When used in mud pumps, its service life is 6 - 10 times that of high - chrome cast iron; when used in slurry pumps, its service life is more than 3 times that of high - chrome cast iron.
- Due to the use of polyurethane material, the weight of the impeller is greatly reduced, and the flow - through surface of the flow - through components is smooth, reducing the power consumption during rotation. Therefore, it can save about 20% of electricity and increase the pump efficiency by about 5% - 10%. At the same time, the reduction of the rotor weight also extends the service life of the bearing components, reduces the failure rate of the pump operation, reduces the maintenance cost, and reduces the downtime loss caused by maintenance.
- Polyurethane has good vibration resistance and vibration absorption performance, which can reduce the vibration and noise of the pump to a certain extent.
- Comparison with rubber:
- It has a wide hardness range, from Shore A hardness 20 to over 95. Polyurethane still has good elasticity and elongation at high hardness, while rubber needs to add a large amount of fillers at the cost of reducing elasticity and performance.
- The tear strength of polyurethane is very high, about more than 2 times that of natural rubber.
- Its wear resistance is about 3 - 5 times that of natural rubber.
- The polyurethane flow - through components can be machined within a certain hardness range.
- Polyurethane has dyeability and can be made into products of various colors.
The application scope of polyurethane elastomers in the field of slurry pump transportation is gradually expanding. Under most working conditions, its service life is several times that of high - manganese cast iron, and it can replace traditional high - manganese cast iron and rubber materials.
Packing and transportation :
Our services:
1.Any inquires will be replied within 8 working hours.
2.Professional centrifugal pump manufacturer, welcome to visit our website (on-line store) and factory.
3.Customized design is available, OEM and ODM are welcomed.
4.High quality, reasonable & competitive price.
5.Fast lead time, 5-25days for bulk pump production
6.Payment: we usual accept payment by T/T, L/C and western union.
7.We have strong cooperation with forwarder, you also can chose your own shipping forwarder.
8.After-sale service: all centrifugal pumps will have been strictly quality checked in house before packing. All centrifugal pumps will be well packed as request before shipping.
Company Information
Shijiazhuang Boda Industrial Pump Co.,LTD specializes in R&D, production and sales of precision connectors. Its products are used in computers, telecom network equipments, industrial apparatuses, ect.
The Company is armed with advanced precision mold manufacturing equipment, high-speed hardware pressing equipment, precision plastic injection equipment, automatic assembly line and inspection/testing devices
The company adheres to the business principle of "technology for development and quality for existence", and provides customers with quality products and considerate service based on its years of experience in R&D, procuction and management, great technical strength and the mature quality management system.
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