Shulian products
subclassification: Low smoke, no halogen
Key words:
Shulian products
Detail
First, the implementation of standards
GB/T32129-2015
Two, characteristics and uses
This product not only has excellent low smoke halogen-free flame retardant performance, but also has excellent extrusion processing performance. Can be in the ordinary PVC extruder extrusion processing machine, as long as the cold device is normal, extrusion processing speed can be accelerated. And its hardness is higher, in the laying process can avoid due to drag, friction and other surface wear, affect the quality of products, especially the construction of BV line. The product is suitable for high flame retardant requirements, small secondary harm occasions such as: subway, ships, power stations, high-rise buildings, program control exchange room, computer room and a variety of densely populated public places. Suitable for core working temperature 90℃ low smoke halogen-free flame retardant cable insulation layer.
Three, extrusion process
If the aluminum-plastic composite inner bag is moisture-proof failure, it should be dried before use. The drying temperature should be 65℃, the time should be at least 2 hours, and the hot material should enter the extruder. Available L/D18-25 extruder extrusion, screw compression ratio is low, the output is larger. Each area of the extruder shall have cooling control system, and the melting temperature shall not exceed 170℃. Because the difference between the actual melt temperature and the temperature indicator value varies with the type of extruder, each user should choose the appropriate temperature according to the specific situation of the extruder used.
The following temperatures can be used as a reference for startup debugging:
Position |
Barrel zone I |
Barrel zone II |
Barrel zone III |
Barrel zone IV |
The head and the mold |
Temperature(℃) |
125±5 |
135±5 |
145±5 |
155±5 |
160±5 |
The head can not put the screen, can also use 60 eyes below the screen; The mold can be extruded or extruded tube.
Can be matched with special master color, the amount of about 1-2%, generally does not affect the material performance.
Iv. Packaging, transportation and storage
Packing: The net weight of each bag is 25kg or 1000kg, the inner bag of aluminum-plastic composite vacuum moisture-proof, the outer packing is made of kraft paper composite bag or woven bag.
Transportation: cable materials should not be exposed to the sun and rain during transportation, and should be handled lightly during handling.
Storage: Should be stored in clean, cool, dry, ventilated warehouse, cable material shelf life is three months.
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