Tips for Plastic Injection Molding

Plastic injection molding is one of the most versatile manufacturing processes widely employed to produce plastic parts of various forms and specifications. The process involves several steps that must be executed paying close attention to detail. Even a minor flaw in any stage of the production process will affect the quality of the final assembly. This blog enlists some tips that help you successfully produce plastic components in desired specifications.

Plastic Injection Molding Tips!

Following are some general tips that contribute in precision injection molding.

• Prior to molding, clean both mold halves. Trapping of dust, moisture content, and other contaminants in the mold halves will affect the quality of the final assembly. Ensure to use a good quality cleaner to get the job done.
• Ensure that the vents are properly cleaned. Make sure that they are free of any corrosion preventive that is applied before, contaminants, and microbial build ups.
• Clean sprue bushing of the molding machine. Polish the unit in case if it is showing any sign of corrosion.
• Nozzle and sprue orifice should be aligned properly for successfully injecting plastic parts. Hence, prior to molding, check these items for proper match up.
• Check the temperature of the mold prior to molding. Ensure that the temperature is set in the specified limit. The nature and properties of the plastic materials must be considered when setting the mold temperature.
• Ensure that the injection and back pressures are maintained to a recommended level.

Following the aforementioned tips allows you have an optimum control over the plastic injection molding process, whilst providing precision parts to users’ specifications.

After the molding process, it is recommended to store molds for later use. However, improper storage could damage them. Hence, it is recommended to coat the molds with any of the commercially available spray or rust inhibitor. Also, you can use good quality mold protective solution for added protection when storing them in corrosion prone industrial environments.