For Cable 8011 Aluminum Foil

Henan Gnee New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of for cable 8011 aluminum foil in China. With abundant experience, we warmly welcome you to wholesale high quality for cable 8011 aluminum foil in stock here from our factory. Good service and reasonable price are available.

Factors affecting surface quality of cable foil and solutions
Oil spot is the most common quality problem on the surface of alu coil. The main reason is that the rolling oil is mixed with machine or rolling oil with high kinematic viscosity. In addition, the air nozzle Angle at the exit of the mill is incorrect, the air pressure is too small, and the oil on the foil belt is not blown clean. The solution is: (1) prevent oil mixed with rolling oil; ② Control the kinematic viscosity of rolling oil, not more than 2.34×10-6m²/s; The rolling oil should be heated in cold weather; ④ Control the amount of additives, 5%-7%; (5) Add two rows of air nozzles at the exit of the rolling mill, with two air nozzles on the top and four air nozzles on the bottom, blowing from the middle to both sides; ⑥ In the last rolling pass manually wipe the oil on the surface of alu coil; ⑦ alu coil annealing, stay at 200℃ for a period of time, so that the rolling oil fully volatile.

The surface of communication wire needs a layer of alu coil to play the role of shielding and barrier, so it can also be called cable shielding foil. This kind of alu coil is generally made of light industrial pure aluminum of 1145 grades. After continuous casting and rolling, hot rolling, cutting and annealing thoroughly, it is respectively supplied to the wire foil compound factory according to the length required by users. The alu coil is coated with plastic film on the name, and cut into many small strips into coils and plates to supply the wire factory. Because this kind of combined alu coil has the advantages of light quality and good protective barrier effect.

Cable foil is made by attaching special plastic film (0.058mm thick) to the upper and lower surfaces of 0.15-0.20mm thick alu coil. There are two sticking methods: dry sticking and wet sticking. The dry method is to stick the film on the high temperature (200℃) roller pressing. Wet method is gluing. At present most dry methods are used. After the plastic film is attached, the film is torn off from the alu coil with special instruments to determine the bonding firm degree of the plastic film. This measurement data is very important, known as the peel strength. According to the communication cable industry standard (code YD/T 723.2-94), the strength should not be less than 6.13N/cm; In addition, the thermal bonding strength should not be less than 17.5N/cm. The surface quality of alu coil is the most important factor affecting the peeling strength, and the main surface quality problems are oil spot, corrosion and peroxide.

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