| Customization: | Available |
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| Type: | Preform Injection |
| Structure: | Horizontal |
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| /Quality | /Specification | |||||
| 1. Thread size and tolerances |
. () The acceptance of the thread size and tolerances will be based on the confirmed preform drawings. (See details of the attached drawings) |
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| 2. Single preform weight deviation |
/Nominal weight | /tolerance | ||||
| 20g/Less than 20g | ± 0.2 g | |||||
| 2035g/20 to 35 g | ± 0.3 g | |||||
| 35g50g/Greater than 35g to 50g | ± 0.4 g | |||||
| 50g/Greater than 50g | ± 1 % | |||||
| 35g/Less than 35g | ± 0.3 g | |||||
| 35g50g/35 g to 50 g | ±0.4 g | |||||
| 50g/More than 50g | ±0.8 % | |||||
| >120 mm | ± 0.05% of preform length | |||||
| 3./Preform thickness difference |
Preform thickness difference = maximum wall thickness - minimum wall thickness 5mm. Measure between 5mm away from the die lip and bottom of the cavity respectively. |
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| 4.(/Ovality) |
0.2.. The ovality of preform body should be less than 0.2mm. = Ovality= Maximum diameter ovality subtracting the minimum diameter |
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| 5./Verticality ()/(Before heating) |
/Preform length | /Tolerance | ||||
| 120/Less than 120 mm | /max | |||||
| 120200/120 mm to 200 mm | /max | |||||
| 6. /full length () (Not including gate prominent) |
/Preform length | /tolerance | ||||
| <= 120mm | ± 0.5mm | |||||
| >120 mm | ± 0.05% of perform length | |||||
| 7./Crystallinity |
:8mm. The crystallinity of the gate area: 8mm in diameter at the outlet end of the center. :50% The depth of crystallization in the gate area is less than 50% of the bottom wall thickness. : Preform wall of crystallinity: unacceptable |
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| 8./Water mark |
()/Threaded area (external) 3.0mm0.5mm,0.3mm12mm, If length reaches 3.0mm, the depth should be less than 0.5mm; or if the length reaches 12mm, the depth should be less than 0.3mm. /Preform body 0.08mm(45°)/Less than 0.08mm (within 45 °) |
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| 9. / Deformation of the parting line |
Parting line deformation "PLD" on preform body : ,,,, In the preform on the mold part of the deformation, many factors will lead to deformation of the mold line, including the preform design, parting line position, process conditions 0.20mm 4.00mm: 0.20mm Wall thickness less than 4.00mm: Maximum 0.20mm 4.0mm: Wall thickness greater than or equal to 4.0mm Maximum wall thickness 5% / Wall thickness measurement and die lip / mold cavity die line |
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| 10./Scratches | Bottle unacceptable 20mm More than 20mm More than 10 scratches per square centimeter |
Bottle neck 5mm Unacceptable if more than 5mm 2 More than 2 scratches per square centimeter |
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| 11. ) The parting line is dislocated, not including any preforms of dislocation design) |
0.05 mm ()/(max) | |||||
| 12./Flash | 0.05mm ()/(max) | |||||
| 13./Bubble or unmelted substances | /unacceptable | |||||
| 14./Shot | /unacceptable | |||||
| 15. /Surface contamination | ,,,,... Internal or external should not contaminate other substances, such as dirt, grease, oil, ... |
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| 16./Preform internal impurities | /unacceptable | |||||
| 17. /Gate length |
1.0mm.(,2.0mm). The solid part of the gate can not be more than 1.0mm long. Any other protrusion (such as leakage material, not more than 2.0mm long). The size is measured by the tangent of the nozzle radius |
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| 18. /Gate Hole |
1.0mm Less than 1.0 mm deep |
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| 19./cold material block | /unacceptable | |||||
| 20./foggy | 40ppm,,. If the raw material in the feed at the humidity of 40ppm or more, or due to the characteristics of raw materials caused by fog, then accept. |
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| 21./Water vapor ring | /unacceptable | |||||
| 22./Material degradation | /unacceptable | |||||
| 23. ()/Fused line (exhaust or sealing surface | /unacceptable | |||||
| 24./ overflow | /unacceptable | |||||
| 25. /polarized light | .,,,. The stress in the preform can be detected by polarized light. Because of the design of the preform, the raw material and the processing conditions will affect the stress in the preform, and the detection of polarized light has certain subjectivity, so it is only for reference. |
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