What is an Aluminum Pump Circle?

An Aluminum Pump Circle is a seal used in a pump structure. It is usually made of aluminum alloy or aluminum-plastic composite material. It is annular and installed between the pump shaft and the pump casing or between the end cover and the pump body. Its main functions are:

Prevent leakage: During the operation of the pump, prevent the liquid in the pump from leaking to the external environment through the gap between the shaft and the pump casing.
Prevent impurities from entering: Prevent external air, dust or other impurities from entering the pump, affecting the performance and service life of the pump.
Enhance sealing: Through close cooperation with the pump casing and pump shaft, it provides a reliable sealing effect to ensure the stable operation of the pump under various working conditions.

Aluminum Pump Circles are usually used in situations that require lightweight, high strength, corrosion resistance and good heat dissipation performance, especially in industrial equipment and consumer products with high requirements for sealing.

What are the applicable scenarios for Aluminum Pump Circles?
Aluminum Pump Circles are widely used in many industries and products due to their excellent performance and good sealing performance, mainly including the following scenarios:

Cosmetics and personal care products
For example: the pump head part of shampoo, conditioner, shower gel, lotion, cream and other products. Aluminum Pump Circles play a key sealing role in these products, ensuring that the liquid does not leak and keeping the pump running smoothly during use.

Industrial fluid transmission system
In the chemical, pharmaceutical, food processing and other industries, it is used in the pump body for conveying corrosive liquids or high-viscosity liquids. Aluminum Pump Circles can effectively prevent liquid leakage and have good corrosion resistance and wear resistance.

Household appliances and small equipment
Such as electric toothbrushes, electric toothpaste pumps, electric shampoo pumps, etc. These devices have high requirements for the sealing and durability of the pump, and Aluminum Pump Circles can meet these needs.

Medical and laboratory equipment
In medical instruments and laboratory equipment, it is used in the pump body for conveying liquids or gases. The non-toxic, odorless and easy-to-clean characteristics of Aluminum Pump Circles make it an ideal choice.

Automobile and motorcycle accessories
Used in some automobile or motorcycle oil pumps, coolant pumps and other parts. The lightweight and high-strength characteristics of Aluminum Pump Circles help improve the performance of the overall equipment.

What are the surface treatment processes for Aluminum Pump Circles?
The surface treatment process of Aluminum Pump Circles has an important impact on their performance, appearance and service life. Common surface treatment processes include the following:

1. Anodizing
Anodizing is a surface treatment process that forms a dense aluminum oxide film on the surface of Aluminum Pump Circles through electrolysis. This process is usually carried out in sulfuric acid or oxalic acid solution. By controlling the current and voltage parameters, an oxidation reaction occurs on the aluminum surface to form a uniform and dense aluminum oxide layer.

This oxide film can not only significantly improve the corrosion resistance, wear resistance and hardness of the Aluminum Pump Circle, but also achieve a variety of color effects through dyeing to meet the aesthetic needs of different application scenarios. The surface hardness after anodizing can reach HD500 (Vickers hardness), which makes it perform well in high-frequency use or harsh environments. This process is widely used in high-end cosmetic pump heads, medical equipment accessories and other products with high requirements for sealing and appearance.

2. Electrolytic polishing
Electrolytic polishing is a surface treatment process that uses electrochemical principles to remove tiny bumps and uneven areas on the surface of a workpiece. During the electrolysis process, the Aluminum Pump Circle is placed in a specific electrolyte as an anode. Through the action of the current, the tiny particles and impurities on the surface are dissolved, thereby achieving surface smoothing.

This process can effectively reduce surface scratches and flaws, improve the overall brightness and texture, and make the surface of the Aluminum Pump Circle more delicate and smooth. Electrolytic polishing is particularly suitable for occasions with high requirements for surface finish, such as high-end cosmetic pump heads, precision instrument accessories, etc., which can significantly improve the appearance quality and user experience of the product.

3. Screen printing
Screen printing is a process of printing ink or paint on the surface of the Aluminum Pump Circle through a screen plate, which is often used to achieve customized processing of graphics, patterns or brand logos. During the printing process, the ink is evenly transferred to the surface of the Aluminum Pump Circle through the pores on the screen plate to form a clear and stable pattern.

This process is easy to operate, highly adaptable, and can achieve complex patterns and multiple colors. It is suitable for surface treatment of various materials such as PP plastics and aluminum alloys. Screen printing is widely used in customized needs such as brand identification and product information display, which can effectively improve product recognition and market competitiveness.

4. Powder coating
Powder coating is a process in which powdered coating is evenly sprayed on the surface of Aluminum Pump Circles, and then cured at high temperature to form a smooth and durable coating. The process first preheats the Aluminum Pump Circle to a certain temperature, then adheres the powder coating evenly to the surface through electrostatic adsorption, and then enters a high-temperature oven for curing.

Powder coating has excellent weather resistance, corrosion resistance and wear resistance, and is not easy to fade, which can meet the long-term use requirements of outdoor or high-frequency products. In addition, powder coating can also choose a variety of colors according to customer needs to achieve personalized customization. This process is widely used in products with high requirements for durability and aesthetics, such as industrial pump body accessories and outdoor equipment housings.

5. Anodizing + Sealing Treatment
Anodizing + Sealing Treatment is a process combination in which the oxide layer is further treated to enhance its performance after the anodizing process is completed. After anodizing, there may still be micropores or the risk of adsorbing pollutants on the surface of the oxide layer, so sealing treatment is required. Sealing treatment usually uses hot water boiling or chemical solution treatment to make the oxide layer denser and prevent moisture and pollutants from entering, thereby improving its corrosion resistance and anti-pollution ability.

This process can significantly enhance the stability and durability of the oxide film and is suitable for industrial equipment that requires long-term stable performance, such as chemical pump bodies, laboratory equipment, etc., to ensure that the product can still maintain good sealing and service life under complex working conditions.

6. Mechanical grinding
Mechanical grinding is a process of grinding the surface of the Aluminum Pump Circle by grinding tools, mainly used to form specific textures or lines to enhance the surface texture and touch of the product. This process usually uses sandpaper, grinding wheels or special grinding tools to grind the surface of the Aluminum Pump Circle to different degrees according to design requirements, so as to achieve different surface effects from smooth to rough.

Mechanical polishing can not only enhance the visual effect of the product, but also improve its feel and use experience. It is suitable for Aluminum Pump Circle products with strong decorativeness, such as high-end cosmetic pump heads, household appliance accessories, etc. Through reasonable polishing process, Aluminum Pump Circles can be given a unique appearance and touch to meet consumers' pursuit of high-quality products.

7. Heat treatment
Heat treatment is a process that changes the internal structure of Aluminum Pump Circles by heating and cooling to improve their mechanical properties. According to different treatment purposes, heat treatment can be divided into many types, including annealing, solution treatment, quenching and artificial aging. Annealing is mainly used to reduce the hardness of the material and improve the plasticity, which is suitable for parts that require greater deformation capacity; solution treatment improves the strength and toughness of the material through rapid heating and cooling; quenching is used to improve hardness and wear resistance, which is suitable for high-load or high-wear environments.

Artificial aging is used to stabilize material properties and reduce internal stress, which is suitable for precision instruments and key equipment. Through reasonable heat treatment process, the comprehensive performance of Aluminum Pump Circles can be significantly improved and their service life can be extended. They are widely used in industrial pump bodies, automotive accessories, medical equipment and other fields.