English
After on-site testing on February 24, 2025, feedback was provided on material ratios, raw materials, and mechanical equipment,
2. Raw material PA (Japanese surplus -1030B) has a processing temperature of around 230 degrees and stable performance. It is recommended to fix this grade
3. PA processing temperature setting; Sort by screw feed inlet in order; 170-220-230-230-220
4. PE material - LLDPE+LDPE, specific ratio unknown, LDPE grade 2426H, LLDPE grade 7042
5. PE ratio reference ratio; (LLDPE-70% -80%+LDPE -20% -30%)
6. PE processing temperature setting; Sort by screw feed inlet in order; 150-170-185-185-180
7. Mold temperature setting; Follow the order of layers 7-1. Top -7th layer, mold mouth -1st layer, sorted from top to bottom
8. Low cost symmetrical membrane structure PE/PE/TIE/PA/TIE/PE/PE. 4 layers of PE+2 layers of adhesive+1 layer of PA
9. Medium cost symmetrical membrane structure; PE/PE/TIE/PA/PA/TIE/PE。 3 layers of PE+2 layers of adhesive=2 layers of PA
10. High barrier ratio structure; PE/TIE/PA/EVOH/PA/TIE/PE。 2 layers of PE+2 layers of adhesive+2 layers of PA+1 layer of EVOH
11. Due to the small proportion of PA in the total, generally not exceeding 30%, the extrusion ratio should be adjusted appropriately for specific requirements of barrier performance
12. Currently, the performance of the adhesive used is unstable, and a commonly used market grade can be used;
|
1 Dow EAA31001, USA |
4 DuPont Bynel Prison 41E687 |
7-ADMER Mitsui Maleic Anhydride NF528 |
|
2 Japan EMMA Sumitomo 402 |
5 tackifying resin K11 |
8-ADMER Mitsui Maleic Anhydride AT1955 |
|
3 Shandong Gaozhuo GZPE-83 |
6 Koyas Chemical - Maleic Anhydride WIL |
9-ADMER Mitsui Maleic Anhydride QB516 |
13. Plan for changing the position of the screw
|
Serial Number |
name |
quantity |
notes |
|
1 |
Adhesive screw |
3 items
|
Add a mixing section to the existing TIE adhesive screws and share the structure with PE |
|
2 |
PA screw
|
2items |
Replace the two adhesive screws from 45 to 35 |
|
3 |
Adhesive screw
|
2items |
Replace 1 PA with 35 |
|
4 |
Extrusion motor
|
11KW |
Install cooling fans on 7 11KW motors by yourself |
14.牵引部位更改方案
|
Serial Number |
name |
quantity |
notes |
|
1 |
RV63 gearbox |
3 items |
Change the original 1/15 to 1/7.5 speed ratio - input hole 24- output shaft 25 |
15. Change plan for winding position
|
Number of layers |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
Active |
PE |
TIE |
PA |
TIE |
PA |
TIE |
PE |
|
threaded rod |
Φ45 |
Φ45 |
Φ45 |
Φ45 |
Φ45 |
Φ45 |
Φ45 |
|
change to |
PE |
PE |
TIE |
PA |
TIE |
PE |
PE |
|
threaded rod |
Φ45 |
Φ45 |
Φ35 |
Φ35 |
Φ35 |
Φ45 |
Φ45 |
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