The Rapid Injection Molding process can produce parts within certain limits of size and volume.The maximum part size depends upon part geometry and material, but here are approximate guidelines: […]
A) Part Strength and RigidityStructural integrity and part stiffness are major advantages for conversion to Gas Assist. Flat, relatively thin wall parts can be made rigid with the addition of a gas channel or channels where allowable in the part, with accommodation for proper filling of the cavity. […]
1.New Tooling New tooling considerations involve only a few items that are not part of a conventional tooling design. Quality input is imperative to determine location and shape of gas channels and for design advice regarding ribs, bosses and heavy sections of the molded product. […]
Different techniques are often employed to produce a part prototype. Choosing the best solution to meet customer requirements can sometimes seem confusing. Makino’s application engineers created the following process comparison to demonstrate several approaches that might be considered for a cell phone mold application. […]
There are no inherent disadvantages to the Gas Assist process. There are, however, a few circumstances where it would not be recommended. […]
1) Process Basics Gas Assist Injection Molding is a process enhancement to conventional injection molding, involving the injection of high-pressure nitrogen gas into the resin melt-stream immediately after injection of the resin. […]
The process cycle for injection molding is very short, typically between 2 seconds and 2 minutes, and consists of the following four stages: […]
Over-mold injection molding and two-shot injection molding are two distinctly different molding methods even though both are used to combine multiple polymers into a single part. Because of this similarity, […]
Choosing plastic mold steel is a very important process in mold manufacturing, because the classification of plastic mold are generally on the length of plastic mold by 5 grades, grade1 is over a million times; grade 2 is 500,000-100 million; grade3 is from 300,000 to 500,000; grade4 is from 100,000 to 300,000, grade 5 is [...]
Candle making is probably one of the earliest dip molding/coating processes used in the industry. It is still in use today. Dip coating has also been an important branch of food processing. For example, chocolate and/or caramel are often coated on many nuts, cookies, and dry or fresh fruits. Dip molding and coating were widely [...]