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How To Achieve Scratch Resistance, Anti-sticking And Firmness Of Aluminum Rollers?

- May 09, 2024-

To achieve the scratch resistance of aluminum guide rollers, there are mainly the following steps:
1) Choose the right aluminum alloy material: According to the actual use, choose an aluminum alloy material with high hardness and strength, good wear resistance and corrosion resistance, which can effectively improve the scratch resistance of the aluminum guide roller.
2) Surface treatment: improve the scratch resistance of aluminum guide rollers through surface treatment. For example, surface treatments such as oxidation treatment, anodizing treatment, and fluorocarbon spraying can be used.
3) Optimize the structural design: In the structural design of the aluminum guide roller, the surface shape of the guide roller can be optimized to reduce the friction and wear between the guide roller and other parts, so as to improve the scratch resistance of the guide roller.
4) Choose the right lubricant: By choosing the right lubricant to reduce the friction between the guide roller and other parts, the service life of the aluminum guide roller can be prolonged and its scratch resistance can be improved.

 

The anti-stick properties of aluminum guide rollers are usually achieved by means of surface coating, surface treatment or surface texture, etc., and the following are common methods:
1) Surface coating: Use a material with an anti-stick coating to coat the surface of the aluminum guide roller, such as polytetrafluoroethylene (PTFE) or other similar materials. These coatings reduce the coefficient of friction between the aluminum guide rollers and the coil, thereby reducing adhesion and stagnation during coiling.
2) Surface treatment: The surface of the aluminum guide roller is treated by chemical or physical methods to make its surface have certain wear resistance and anti-sticking. Surface treatments such as EDM, shot peening, oxidation or anodizing are usually used.
3) Surface texture: By designing the texture or pattern on the surface of the aluminum guide roller, the air adsorption between the surface of the coil and the aluminum guide roller can be increased, so as to reduce the contact area between the aluminum guide roller and the coil, and reduce the adhesion friction of the contact surface.

The above-mentioned method can improve the anti-sticking ability of the aluminum guide roller, reduce the friction between the coil, avoid the occurrence of paper card, stuck and roll matching, and ensure the normal progress of production. However, the aluminum guide roller also needs to be properly maintained and cleaned during use to maintain its good anti-stick function.

 

In order to strengthen the firmness of the aluminum guide roller, the airshow aluminum guide roller manufacturers usually take the following preparatory measures:
1) Material selection: Choose high-strength, wear-resistant, corrosion-resistant aluminum alloy as the material of the guide roller to ensure the strength and durability of the guide roller.
2) Structural design: Through reasonable structural design and parameter calculation, it is ensured that the guide roller can remain stable under working load and provide sufficient support and bearing capacity.
3) Surface treatment: surface treatment of the guide roller, such as spraying or plating, etc. This provides the wear and corrosion resistance of the guide rollers, while also improving surface smoothness and reducing friction.
4) Fine quenching machining: through the processing technology and equipment of fine que, ensure that the size and geometry of the guide roller meet the design requirements. This helps to ensure the accuracy of the assembly and installation of the guide rollers, improving firmness and working stability.
5) Quality control: Strict quality control system, including raw material inspection, production process control and comprehensive testing of later products. This ensures that the quality of the guide rollers meets the standard requirements and provides reliability and longevity.
6) Test and verification: Carry out necessary testing and verification on the guide roller, such as load test, vibration test and life test, etc. This evaluates the performance and robustness of the guide rollers and ensures that they work reliably in practice.

 

What material is the aluminum guide roller made of? Aluminum guide rollers are made of aluminum material. Aluminum is a lightweight, high-strength metal material with good thermal conductivity, which is suitable for the manufacture of shaft parts such as guide rollers.
The choice of aluminum guide roller material should be determined according to the specific application requirements and working environment, considering the load, speed and temperature of the guide roller, the selection of the appropriate aluminum alloy material can ensure that the guide roller has good durability and performance.
In general, when manufacturing aluminum guide rollers, commonly used aluminum alloy materials include:
1) Aluminum alloy 6061: This is a commonly used aluminum alloy with good mechanical properties and corrosion resistance. It is suitable for guide roller manufacturing that requires high strength and stable performance, such as printing machines, textile machines, etc.
2) Aluminum alloy 7075: Aluminum alloy 7075 has high strength and hardness, and has excellent wear resistance. It is often used in guide roller manufacturing that requires high strength and good rigidity, such as heavy machinery and equipment, metallurgical equipment, etc.
3) Pure aluminum (more than 99.9% aluminum): Pure aluminum has light weight and good thermal conductivity, which is suitable for the manufacture of guide rollers with low requirements for strength and corrosion resistance, such as light machinery and equipment, food processing machinery, etc.

 

Surface treatment of aluminum guide roller:
1) Bright surface: It has a smooth and clean surface with low friction resistance, and can achieve different roughness Ra0.3~Ra6.3 according to the regulations.
2) Surface external thread line: the common ones are cross-type external thread line and management center line (divided by the management center and widened to both sides).
3) Concave and convex surface: It can be produced and processed by the machining center to produce a variety of concave type, medium convex type and arc-shaped surface layer.
4) Sandblasting or shot blasting: Sandblasting or shot blasting production and processing can obtain a relatively non-smooth surface layer, which can improve sliding friction.
5) Knurled or network cable: the surface of the pattern pattern of different sizes can be presented according to the customer's regulations.

 

Three coating processes and processing methods of aluminum guide rollers:
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
A total of more than 200 colors to choose from, 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 properties are very good. 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
The aluminum guide roller is sprayed with polyvinylidene fluoride paint coating on the surface of the aluminum alloy matrix through electrostatic action. 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 stronger molecular bonds, which is better than its polymerized molecular structure. Fluorocarbon spraying is used as a means of surface coating process. It has the advantage of uniform color and better resistance to fading and staining.

  • Glossy: The aluminum guide roller has a smooth surface with low resistance, and can reach different surface roughness Ra0.3~Ra6.3 according to requirements.
  • Surface thread line: Aluminum guide rollers commonly used are cross thread line and center expansion line (from the center to the two ends).
  • Concave and convex surfaces: various concave, convex and arc surfaces can be processed by CNC lathes.
  • Sandblasting or shot blasting: Sandblasting or shot blasting can obtain a rougher surface, which can increase friction.
  • Knurled or network cable: Aluminum guide rollers can be provided with different sizes of pattern surfaces according to customer requirements.

 

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