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Description
The cable compounding could be divided into 3 parts below:
Silane XLPE cable compounding (two step and suitable for cable below 10kv)
Peroxide XLPE cable compounding (for cable 10-35kv)
HFFR (Halogen Free Flame Retardant) cable Compounding
1. Silane XLPE cable compounding (two step and suitable for cable below 10kv)
Basic formula for compound A:
98% LLDPE/LDPE+GL+GM
Process: loss in weight feeding system-> high torque twin screw extruder-> water ring die face pelletizing
Parameters:
Model | Screw Diameter (mm) | L/D | Screw RPM | Main Motor KW | Torque Grade T/N3 | Output kg/h |
HT-63 | 62.4 | 32-68 | 300-900 | 110-315 | 12.3 | 350-1000 |
HT-72 | 71 | 32-68 | 300-900 | 160-450 | 11.8 | 600-2000 |
HT-85 | 81 | 32-68 | 300-900 | 220-630 | 11.2 | 800-2500 |
HT-95 | 93 | 32-68 | 300-900 | 355-900 | 11.8 | 1200-3000 |
Basic formula for compound B
95% LLDPE+antioxidant+GL
Process: standard twin screw extruder -> water cooling strand pelletizing
Parameters:
Model | Screw Diameter (mm) | L/D | Screw RPM | Main motor KW | Torque Grade T/N3 | Capacity kg/h |
SHJ-30 | 30 | 32-68 | 400/500/600 | 11 | 5.8 | 5-50 |
SHJ-36 | 35.6 | 32-68 | 500/600/700/800 | 15-18.5-22 | 5.7 | 20-80 |
SHJ-42 | 41.2 | 32-68 | 500/600/700/800 | 22-30-37 | 5.7 | 50-120 |
SHJ-50 | 50.5 | 32-68 | 500/600/700/800 | 37-45-55 | 5.8 | 80-200 |
Then mix 95% of compound A and 5% compound B material for the XLPE Cable extrusion
2. Peroxide XLPE cable compounding (for cable 10-35kv)
Basic formula:
LDPE+DPC+antioxidant
Process:
Loss in weight feeding system -> two stage extruder ->eccentric die face pelletizing
Note:
Final granules need to be dried.
Workshop must be air purification treatment.
Parameters:
Model | Twin-screw | Screw diameter (mm) | L/D | Main motor KW | Screw rpm | Output Kg/h |
Single-screw | ||||||
JY63/150 | SHJ-63 | 62.4 | 32-68 | 55-75-90 | 500-800 | 200-500 |
SJ-150 | 150 | 7-20 | 37-45 | 60-86 | ||
JY63/180 | HT-63 | 62.4 | 32-68 | 75-110 | 500-800 | 350-800 |
SJ-180 | 180 | 7-20 | 45-55 | 60-86 | ||
JY72/180 | SHJ-72 | 71 | 32-68 | 200-280 | 500-800 | 400-800 |
SJ-180 | 180 | 7-20 | 45-55 | 60-86 | ||
JY72/200 | HT-72 | 71 | 32-68 | 200-280 | 500-800 | 500-1200 |
SJ-200 | 200 | 7-20 | 55-75 | 60-86 | ||
JY92/200 | SHJ-92 | 91 | 32-68 | 250-315 | 500-600 | 600-1200 |
SJ-200 | 200 | 7-20 | 55-75 | 60-86 | ||
JY92/250 | HT-92 | 91 | 32-68 | 450-550 | 500-600 | 1500-2600 |
3. HFFR (Halogen Free Flame Retardant) Cable Compounding
Basic formula:
PE+ATH
Process:
Kneader -> conveyor -> conical twin screw feeder -> two stage extruder -> air cooling die face cutting
Parameters:
Model | Twin-screw | Screw diameter (mm) | L/D | Main motor KW | Screw rpm | Output Kg/h |
Single-screw | ||||||
JY63/150 | SHJ-63 | 62.4 | 32-68 | 55-75-90 | 500-800 | 200-500 |
SJ-150 | 150 | 7-20 | 37-45 | 60-86 | ||
JY63/180 | HT-63 | 62.4 | 32-68 | 75-110 | 500-800 | 350-800 |
SJ-180 | 180 | 7-20 | 45-55 | 60-86 | ||
JY72/180 | SHJ-72 | 71 | 32-68 | 200-280 | 500-800 | 400-800 |
SJ-180 | 180 | 7-20 | 45-55 | 60-86 | ||
JY72/200 | HT-72 | 71 | 32-68 | 200-280 | 500-800 | 500-1200 |
SJ-200 | 200 | 7-20 | 55-75 | 60-86 | ||
JY92/200 | SHJ-92 | 91 | 32-68 | 250-315 | 500-600 | 600-1200 |
SJ-200 | 200 | 7-20 | 55-75 | 60-86 | ||
JY92/250 | HT-92 | 91 | 32-68 | 450-550 | 500-600 | 1500-2600 |
