A study of “worms” melt fracture in polyethylene extrusion blow molding process using capillary rheometry

2016 ◽  
Vol 56 (6) ◽  
pp. 650-656
Author(s):  
Yong Woo Inn ◽  
Ashish M. Sukhadia ◽  
William M. Whitte
Keyword(s):  
Melt Fracture ◽  
Molding Process ◽  
Capillary Rheometry ◽  
Blow Molding ◽  
Extrusion Blow Molding

scholarly journals STUDY OF DEFECT ON 180 ML HDPE BOTTLES YOGURT PRODUCTS WITH SMC B11 EXTRUSION BLOW MACHINE AT PT X

KREATOR ◽  
2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Tommy Prasetya Kana ◽  
Handika Dany Rahmayanti ◽  
HM Didik
Keyword(s):  
High Density Polyethylene ◽  
Plastic Material ◽  
Production Cycle ◽  
Molding Process ◽  
Plastic Packaging ◽  
Cycle Times ◽  
Blow Molding ◽  
Plastic Bottle ◽  
Extrusion Blow Molding ◽  
Stretch Blow Molding

The type of plastic packaging that is popular in the community is bottle packaging. The plastic material that is generally used to make plastic bottles is High Density Polyethylene (HDPE). The plastic bottle industry in Indonesia usually uses a blow molding process in its production process, where the blow molding process consists of injection blow molding, extrusion blow molding and stretch blow molding. The SMC B11 machine is one of the extrusion blow molding machines used to produce plastic bottle packaging. In producing workpieces, this machine still produces several products that are not in accordance with company standards, including in terms of production cycle times and product defects. Defects or defects that are often encountered include the appearance of spots, bent parison which causes the bottle to bend (the bottle body is thin one side) and blow pin which causes the thread to not fit.Keywords— Bottle, Plastic, Defect, Extrussion Blow Molding

Development of Conductive Packaging for Beverage Processing by Ohmic Heating

2020 ◽  
Vol 861 ◽  
pp. 213-217
Author(s):  
Sumuncharee Suyraksa ◽  
Pitiya Kamonpatana ◽  
Noppadon Kerddonfag ◽  
Amporn Sane ◽  
Vanee Chonhenchob
Keyword(s):  
Electrical Conductivity ◽  
Orange Juice ◽  
Sodium Sulfate ◽  
Ohmic Heating ◽  
Uniform Heating ◽  
Molding Process ◽  
Conductive Material ◽  
Blow Molding ◽  
Extrusion Blow Molding

This study was aimed to develop conductive packaging for ohmic heating. Polypropylene (PP) was mixed with conductive material (CM) in the ratios of 70:30 (CM30), 75:25 (CM25), and 80:20 (CM20) (w/w), then the conductive bottles were developed using extrusion blow molding process. The bottles were suspended in different sodium sulfate (Na2SO4) solutions (0.2, 0.3, and 0.5% w/w) as a transmitting current medium for ohmic heating and heated for 8 min. The CM30 and CM 25 had the highest electrical conductivity compared to the CM20, however the CM20 exhibited best processability, hence it was selected to be used for ohmic heating of orange juice. Different concentrations of Na2SO4 solutions had the effects on ohmic heating. The CM20 bottle suspended in 0.2% Na2SO4 solution resulted in the most uniform heating and suitable for ohmic processing of orange juice. The new conductive bottles developed could potentially be used for beverage processing by ohmic heating.

Overall numerical simulation of extrusion blow molding process

2000 ◽  
Vol 40 (8) ◽  
pp. 1878-1893 ◽  
Author(s):  
Shin-Ichiro Tanifuji ◽  
Tsuyoshi Kikuchi ◽  
Jun-Ichi Takimoto ◽  
Kiyohito Koyama
Keyword(s):  
Numerical Simulation ◽  
Molding Process ◽  
Blow Molding ◽  
Extrusion Blow Molding

A Numerical Model of the Extrusion Blow-Molding Process

1993 ◽  
Vol 12 (5) ◽  
pp. 498-505 ◽  
Author(s):  
M. Bellet ◽  
C. Corsini ◽  
D. Assaker ◽  
P. Mercier ◽  
P. Wouters
Keyword(s):  
Numerical Model ◽  
Molding Process ◽  
Blow Molding ◽  
Extrusion Blow Molding

scholarly journals Predictive Modelling for Quality Prediction and Assurance of Extrusion Blow Molding

2019 ◽  
Vol 8 (11) ◽  
pp. 1364-1368
Keyword(s):  
Data Mining ◽  
Predictive Modelling ◽  
Molding Process ◽  
K Nearest Neighbors ◽  
Blow Molding ◽  
Data Mining Approach ◽  
Complex Relationships ◽  
Using Data ◽  
Extrusion Blow Molding

Extrusion Blow Molding process plays an important role in manufacturing of hollow products with wide variety of materials like polyethylene (PE), polypropylene (PP), polyvinylchloride (PVC). Extrusion blow molded products are rejected due to the occurrence of defects such as die lines, blowouts, shrinkage, over weight of part. The complex relationships that exist between the process variables, and causes of defects are investigated for 1 litre container made of highdensity polyethylene (HDPE) using data mining techniques in order to reduce scrap. In this paper Data Mining approach is implemented by applying Decision Tree, k-Nearest Neighbors, Rule Induction and Vote techniques in RapidMiner for quality assurance and prediction of the quality of the extrusion blow molded product

A model for parison behavior in the extrusion blow molding process

AIChE Journal ◽  
1985 ◽  
Vol 31 (5) ◽  
pp. 807-811 ◽  
Author(s):  
J. M. Dealy ◽  
Nese Orbey
Keyword(s):  
Molding Process ◽  
Blow Molding ◽  
Extrusion Blow Molding

scholarly journals Characteristics of producing of the polymer films in blow film extrusion process

Mechanik ◽  
2019 ◽  
Vol 92 (4) ◽  
pp. 230-233
Author(s):  
Sebastian Białasz ◽  
Łukasz Garbacz
Keyword(s):  
Polymer Films ◽  
Extrusion Process ◽  
Polyethylene Film ◽  
Molding Process ◽  
Film Extrusion ◽  
Blow Molding ◽  
Blown Film ◽  
Blown Film Extrusion ◽  
Extrusion Blow Molding

In the article specification of blown film extrusion process of thermoplastics was presented. Methods of extrusion subject to products with determine characteristic received in the process where characteristic. In the research, extrusion blow molding process used polyethylene film PE-LD Malen-E were used. Extensive studies of the extrusion process and selected properties of polymer films were used.

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