Teflon Aluminum Tube

(1) Universal white oxidized surface: moderate surface hardness HV300, low cost, can also provide different color surface (such as pure black) according to customer requirements, suitable for low tension film industry.

(2) Brown hard oxidized surface: surface hardness of aluminum guide roller HV700 and oxide film thickness of 0.1mm or more. The oxidation technology introduced in Taiwan, high hardness and high abrasion resistance can be applied to various high tension and thick materials. The life of the aluminum guide roller can be greatly improved.

(C) Teflon surface: The special Teflon coating makes the ink easy to clean and provides moderate anti-stick properties.

(4) Rubber surface: The aluminum guide roller is used as the core shaft, and different rubberized layers can provide versatility of different characteristics and different hardnesses.

(5) Industrial hard chrome surface: the highest surface hardness and corrosion resistance, surface roughness can be as low as Ra0.01 (ultra-mirror surface), compared with traditional chrome-plated steel roller, light-weight chrome-plated aluminum roller can be applied to higher speed machine.

The quality of the products is not uniform, how to create high-quality rollers? It is necessary to strictly implement the manufacturing process. If any of the intermediate processes are lacking, serious quality problems will be exposed during the actual use, which will affect the normal production of the manufacturer.

This requires the roller manufacturer to pay attention to the following points:

First, we must first strictly select the roll blank material. We should choose seamless steel pipe or forging or centrifugal casting according to different plastic products. In the process of production, we should adopt corresponding heat treatment such as quenching and tempering for different roll blanks. Process.

Secondly, in the process of processing, stress must be removed after the welding process, and surface hardening or nitriding treatment should be carried out to improve the surface hardness. These processes must not be taken out because of the high cost, which seems to be on the surface. Can not come out, but there are serious hidden dangers in the actual use of the production process, which is absolutely not allowed in the roller production.

Thirdly, the plating thickness should be strictly ensured during the electroplating and surface treatment process. In the grinding process, especially in the super-fine grinding process, the process steps should be strictly followed, and the normal steps should never be ignored. To reduce the process, otherwise it is impossible to produce a qualified roller.

In fact, the oxidation of the aluminum guide roller is a normal first thought, because the surface of the aluminum guide roller will oxidize the conjunctiva after a long time of use.

In the offset printing process, bright and fast-drying resin inks are commonly used. The characteristics of quick-drying inks are that dry oil and diffusing agent are added to the ink. These desiccants will slowly penetrate into the surface of the rubber roller to make the surface oxidize and consolidate and seal, resulting in a rubber roller feel. Lipid decline affects the effect of ink absorption and ink transfer.

The way to eliminate this drawback is to sharpen the conjunctiva layer manually or mechanically.

However, it should be noted that the diameter of the aluminum guide roller cannot be changed too much, otherwise it will affect the ink transfer performance of the inking system.

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