Low smoke halogen-free wire and cable in the production process of excessive torque, mold mouth poly material, equipment loss and so on how to solve?
2019-08-23
Low smoke halogen-free flame retardant cross-linked polyolefin insulated control cable does not emit toxic fumes when burning, has become increasingly recognized by the market. Then in the production process will often be too much torque, mold mouth poly material, resulting in equipment loss, summarize the reasons are none other than the following.
1, low smoke halogen-free flame retardant cable material in the production process needs to fill a large number of magnesium hydroxide or aluminum hydroxide party has a flame retardant effect, but the addition of a large amount will produce too much torque, resulting in equipment loss
1, low smoke halogen-free flame retardant cable material in the production process needs to fill a large number of magnesium hydroxide or aluminum hydroxide party has a flame retardant effect, but the addition of a large amount will produce too much torque, resulting in equipment loss
2, low smoke halogen-free cable material extrusion process will generate a lot of heat due to its friction. Therefore, the extruder is equipped with cooling devices need to control the temperature in the process, if the temperature is too high will make the surface of the cable produces a large porosity, the temperature is too low and will make the equipment of the whole machine current increase, easy to damage the equipment.
3, the die mouth poly material is generated because the low smoke halogen-free flame retardant cable material added a large number of flame retardants to make it difficult to extrude poor liquidity, the screw shear force is large. Manufacturers add a lot of low molecule lubricants in the production formula to improve, and low molecule lubricants are easy to degrade at high temperature and accumulate on the surface of the die opening.
The silicone masterbatch produced by Chonex with the introduction of foreign technology can solve these problems very well. As a polymer, silicone masterbatch can improve the flame retardant effect on the one hand, and improve the dispersibility and fluidity on the other hand, solve the problem of excessive torque, reduce the aggregation of material at the mold mouth and reduce the loss of equipment. After adding silicone masterbatch cable products, the surface is smooth, smooth, wear-resistant and scratch-resistant.
With the wire and cable manufacturers to improve the quality of the requirements, ZhuoNaiXi silicone masterbatch is more and more sought after by the upstream manufacturers.
