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PlasTech Molding Solutions, formerly REC Manufacturing, is a pioneer in the molding industry, and for the past 70+ years stays abreast of advancements in plastic molding technologies. Read what our thought leaders have to share about the industry. Plus, valuable resources to assist you with your plastic injection molding needs. https://hubs.li/Q01qnQ5D0 #PlastechMolding #Manufacturing #CustomPlastic #Prototyping #PlasticInjectionMolding #PlasticMachining

This test is generally run with cold runner molds to determine pressure drop through various sections of the runner system and/or cavities. This can be useful for helping to pin point areas of high pressure. You can then make necessary changes to more strategically relieve pressure if it is excessive.

This is the most common type of short shot test. The main goal of this test is to determine the cavity-to-cavity filling balance of a mold. Proper procedures for this test are as follows:

• Just after the sprue • At each runner intersection • Just before the gate • Just after the gate • Most filled cavity 50% filled • Most filled cavity 80% filled • Most filled cavity 95% filled

Short shot mold diagnostics is a seemingly simple yet very effective method of evaluating a molds performance. The use of short shots can provide a window into how a mold fills. Uses can include diagnostics of filling imbalances in multi-cavity molds, evaluation of filling patterns within a given cavity and evaluation of the molding pressure development within the mold. Despite the simplicity of this method, it is common that the test is done incorrectly and results in false information. Below are instructions on how to properly collect short shot data.

“Of all the training seminars that I have attended over the past 10 years, this one ranks at the top! The explanations of clamp tonnage, cooling strategies, viscosity, and key mold design components are just a few of the takeaways that will be very useful in my job function.”

This test is run to evaluate the cavity filling pattern within your mold. This can help isolate causes of weld lines, gas traps, and other filling related problems.

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