Have you ever thought about how useful plastic is in the manufacturing world? With the use of plastic molds, it can be turned into almost any shape.
Plastic Manufacturing Houston TX
Material selection is an important part of designing the mold for production. One aspect to consider is that each material has its own specific shrinkage factors. Every material with the exception of water expands when it is heated and contracts when it is cooled. In injection molding we label the contraction as the materials shrinkage. The shrinkage factor of the material is taken into account when designing the cavity of the mold so that when the part contracts it will meet the expected dimensional requirements of the original design.
Some materials dissipate heat differently than others, which can result in variation in material cooling during the molding process. This has a big impact on how the water cooling lines are placed in the mold to ensure even cooling. Another related factor is the viscosity of the material. Viscosity is the measurement of the thickness of the material in its liquid form. Higher viscosity means thicker material, and greater injection pressure to push it through the mold. Also these materials require larger diameter in the runners and gates to allow the material to flow easily into the cavity. The melt index is a good tool in determining the flowability of a particular plastic.
At Chemplast, we encourage our customers to reach out to us with their inquiries about plastic injection molding so that they can make a better informed decision on what manufacturing process best suits their needs. Located in near Houston, Texas Chemplast serves a variety of customers in the cities of Houston, Dallas, Austin, and San Antonio.
Plastic Manufacturing Houston TX
Material selection is an important part of designing the mold for production. One aspect to consider is that each material has its own specific shrinkage factors. Every material with the exception of water expands when it is heated and contracts when it is cooled. In injection molding we label the contraction as the materials shrinkage. The shrinkage factor of the material is taken into account when designing the cavity of the mold so that when the part contracts it will meet the expected dimensional requirements of the original design.
Some materials dissipate heat differently than others, which can result in variation in material cooling during the molding process. This has a big impact on how the water cooling lines are placed in the mold to ensure even cooling. Another related factor is the viscosity of the material. Viscosity is the measurement of the thickness of the material in its liquid form. Higher viscosity means thicker material, and greater injection pressure to push it through the mold. Also these materials require larger diameter in the runners and gates to allow the material to flow easily into the cavity. The melt index is a good tool in determining the flowability of a particular plastic.
At Chemplast, we encourage our customers to reach out to us with their inquiries about plastic injection molding so that they can make a better informed decision on what manufacturing process best suits their needs. Located in near Houston, Texas Chemplast serves a variety of customers in the cities of Houston, Dallas, Austin, and San Antonio.
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