Optimization of injection process parameters for the manufacture of recycled PP material thread cones

• Main Authors: Hutama, Adhi Setya, Hayu, Winastwan Sista, Nugroho, Adi
• Format: Conference Proceeding
• Language: English
• Subjects: Calcium carbonate; Cones; Industrial development; Injection molding; Innovations; Melt temperature; Optimization; Process parameters; Product development; Simulation; Taguchi methods
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0181663

Product development and innovation are important things needed by an industry. Product development is a strategy carried out in offering new or modified products that are appropriate and needed by consumers. Innovation itself can be interpreted as the efforts made by product makers to improve, improve, and develop products produced. Cone from plastic products are also undergoing development and innovation, one of which is the manufacture of plastic cones made from recycled plastic. The use of recycled plastic is aimed at reducing plastic waste which is currently a problem in Indonesia. In the development process, cone products made from polypropylene plastic material (PP) are recycled with added calcium carbonate used as a product booster. The process of making thread cone products is done by injection molding process and is expected to have standardized product weight. Optimizing injection parameter can be done by combining parameters that have influence on product weight and simulating the parameter combination using Moldflow software. The optimization process can be carried out using Taguchi method, where this method helps in choosing the most optimal parameters combination without simulated all parameters combinations. The analysis carried out aims to find the optimal combination of parameters with the value of product weight from simulation results can approach the specified target value. Based on research on optimizing the injection molding process parameters in the manufacturing cone using Taguchi method with nominal the better characteristic, the following parameters combinations were obtained: holding time for 4 seconds; injection time about 1.5 second; injection speed about 140 mm/s; and melt temperature about 250 °C and the resulting product weight of 11.13 grams that meets production standards.