What are the main surface coating processes and surface processing methods of aluminum guide rollers?

Aluminum guide roller, also known as aluminum alloy guide roller, is made of high-quality aluminum alloy material (6063-T5) and molded into a tube type (from the outer diameter of 30mm~220mm) of various specifications, with a stiffener structure and high strength. And the use of precision equipment and special tools for surface finishing, so that the surface is smooth, the coaxiality reaches 0.02mm, the whole shaft is corrected by computer balance within 2g, the shaft end of the special process and with imported bearings. It can be operated easily and freely at high speeds. According to the different needs of the industry, its surface can also be specially treated: sandblasting, anilox, Teflon and special hardening treatment HV700, so that it has good scratch resistance and wear resistance.

Aluminum guide rollers have high strength, low resistance, light weight, flexible rotation, no rust, wear resistance and corrosion resistance, especially suitable for printing, packaging, plastics, electronic batteries and other precision machinery industries and various coil processing industries.

Aluminum guide rollers are made with advanced processing technology; The structure of aluminum rollers can be roughly divided into:
1. Hollow aluminum roller: inner bearing structure, the bearing is assembled in the bearing holes at both ends.
2. Connecting aluminum roller: the two ends of the roller body are combined with steel shaft or stainless steel shaft end, which is an integrated structure.
3. Water aluminum roller: cooling or heating liquid enters and exits through both sides and circulates in the roller body.

The main surface coating processes are:
1. Electrophoretic coating
On the basis of anodizing, the aluminum guide roller is evenly covered with a layer of water-soluble acrylic paint film on the oxide film through the action of electrophoresis, so that the surface of the profile forms an anodized film and an acrylic paint film composite film. The feel is smooth and delicate, the appearance is bright and bright, in addition to the production of original oxidation coloring coloring on the basis of the color, can make more bright colors such as white and green.
2. Color powder coating
There are more than 200 colors to choose from for aluminum guide rollers, giving designers a broad space, stable performance, strong adhesion of paint film, not easy to peel off, acid resistance, salt spray resistance, mortar resistance, weather resistance, aging resistance and other excellent performance. The coating is non-volatile, non-oxidizing, non-polluting and toxic in the air, and has good environmental performance. Surface dirt looks new after washing.
3. Color fluorocarbon spraying
Through electrostatic action, the surface of the aluminum alloy matrix is sprayed with polyvinylidene fluoride paint coating. Fluorocarbon coatings are vinylidene fluoride and fluorocarbon coatings. Therefore, it can have long-lasting color retention, anti-aging, anti-corrosion, anti-atmospheric pollution, and its fluorocarbon bond is one of the strongest molecular bonds, superior to its polymeric molecular structure. Fluorocarbon spraying is used as a high-grade surface coating process. It has the advantage of uniform color and excellent resistance to fading and staining.

Different surface processing methods of aluminum guide rollers:
1. Smooth surface: smooth surface, low resistance, according to the requirements of different surface roughness Ra0.3~Ra6.3.
2. Face thread line: commonly used thread line and center unfolding line (bisected from the center and extended to both end faces).
3. Concave and convex surface: CNC lathes can process all kinds of concave and convex surfaces and arc surfaces. Motor torque price
4. Sandblasting or shot blasting: Sandblasting or shot blasting can obtain a rough surface, which can increase friction.
5. Knurled or network cable: different sizes of pattern surface can be provided according to customer requirements.
6. The aluminum guide roller inflation operation time is short, and the separation and placement of the inflation shaft and the paper tube can be completed in only 3 seconds, and it can be tightly meshed with the paper tube without separating any parts on the end side of the shaft. Simple core placement: The paper core can be moved and fixed anywhere on the shaft surface by inflating and deflating. Large bearing capacity: the shaft diameter can be determined according to the actual needs of customers, and high-strength steel can be used to increase the bearing capacity. High economic benefits: The shaft is designed with special functions, which can be applied to paper tubes with various thick, thin, wide and narrow aluminum guide rollers. Simple maintenance and long service life: it is a single part, and each part in its structure has a fixed specification, which can be used interchangeably for easy maintenance. Hollow aluminum roller: inner bearing structure, the bearings at both ends are installed in the bearing hole.
7. Shaft aluminum guide roller: the two ends of the roller body are combined with the steel shaft or stainless steel shaft end to form an integrated structure.
8. Aluminum roller through water: cooling or heating liquid enters and exits from both sides and circulates in the roller body.
9. Special rolls: rolls of various special structures processed according to the drawings.

What are the characteristics required for aluminum guide rollers in different application areas:
1. Packaging industry
In the packaging industry, aluminum guide rollers are commonly used on packaging conveyor lines. These conveyor lines handle a wide range of sizes and weights, so the quality and reliability of the guide rollers are very high. Aluminum guide rollers need to be highly lightweight, corrosion-resistant, wear-resistant, and rigid enough to ensure long-term operation.
2. Printing industry
In the printing industry, aluminum guide rollers are widely used on printing machines to transfer printing media. Aluminum guide rollers need to have high flatness, precision and stability, which helps to maintain the stability and accuracy of the printing machine at high speeds.
3. Paper industry
In the paper industry, aluminum guide rollers have a relatively wide range of applications and are used to manufacture a variety of paper, cardboard and paper products. In the papermaking process, aluminum guide rollers need to have high wear resistance, fast reaction speed, high temperature resistance and good electrical conductivity in order to control the paper machine.
4. Electronics industry
In the electronics industry, aluminum guide rollers are mainly used in semiconductor production lines. Aluminum guide rollers need to have high purity, ultra-flat surface treatment, heat resistance, chemical stability, and antistatic capabilities. These characteristics are all designed to ensure the accuracy and stability of the semiconductor production line.

Maintenance measures for aluminum guide rollers:
1. Varnishing maintenance of aluminum alloy guide roller: remove the glass layer on the surface of the rubber roller and maintain good surface roughness.
2. Decalcification of self-protecting aluminum guide rollers: Hydrophilic rubber rollers often occur during the printing process, and the hydrophilic function is reduced, resulting in serious water rolling and ink rolling of the ink roller. When printing web, it is easy to cause consequences, which are often caused by calcification of rubber rollers. Calcium comes from paper and water in printing, and calcium is deposited on the ink and water rollers from time to time every day. Therefore, decalcification is an indispensable self-care routine in printing.
3. Clean and comfortable color change of aluminum guide roller: In the process of color change from dark color to light color and spot color printing, it is often clean and laborious, and the color change time is long, thereby reducing the efficiency of the printing machine and forming a bonus to the scrap rate; Moreover, poor cleaning will accumulate on the rubber surface and increase the surface roughness of the rubber roller. So we emphasize that we should start taking care of ourselves every day, and that we should be clean and clean every time. Idler maintenance of aluminum guide rollers: In order to prevent the influence of temperature on the rubber rollers and maintain the excellent shape of the rubber of the idler walking seat, special maintenance of the idler rollers is required.
4. Dead ink hardening: The hard roller in printing is prone to dry ink accumulation in the case of frequent color change, and the dead ink on the hard roller should be cleaned every time the ink roller is cleaned to prevent the hard roller from affecting the life of the soft roller and the color recovery.
5. Current rubber recycling and self-care: After the rubber roller is used for a period of time, it is necessary to restore the hardness and elasticity of the rubber, and clean up the impurities such as ink, paper powder, and paper wool accumulated on the rubber roller. After recovery and self-care, the rubber roller can have the printing performance of the new rubber roller.
6. The current maintenance of the water circulation system: In the maintenance process, the influence of the water circulation pipeline is often ignored, and the dirt of the pipeline will lead to the emulsification of the ink, resulting in dirt in the water tank, resulting in a decrease in conductivity, and the addition of water and ink. Therefore, keeping the water circulation pipes clean is very important for printing, and it needs to be highly valued by consumers and printing operators in the workshop.
7. Cleanliness of the alcohol roller: increase the time to wipe the alcohol roller with oil-soluble solvent; Increase the amount of ink on the water roller as much as possible to maintain the fluctuating printing; Wash the ink on the water roller of the alcohol in a timely manner; A cleaning agent that can clean the ink and has no damage to the water glue.

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