plastic mould and custom injection moulding tips

plastic mold venting  Before injection molding, there is a large amount of air in the flow path and the cavity. When the melt enters the cavity quickly, it is necessary to discharge the air quickly. [caption id="attachment_3731" align="aligncenter" width="754"] plastic mold venting[/caption] In addition, when the melt is solidified in the cavity, there is a vacuum between the product and the cavity wall, also the air must enter the mold in time to help ejection. The structure in which the air is vented and introduced into the injection mold is referred to as a venting system . Specifically, the venting system of the injection mold includes the following: 1 When the plastic material is injected, the air in the mold cavity and the feed system  is expelled outside the mold in time, that is, the venting system of the mold; 2 The introduce-air system designed for large-scale products to avoid deformation of the product or stick to the cavity when the mold is o...

9 Tips to Make the Mold Buying Process Easier It can be complicated to buy an injection mold, as there will likely be a lot of back and forth between buyer and contract molder before the final product is settled on. However, the following tips can help save you plenty of time, and make the whole process that little bit easier. Create an RFQ that goes into a lot of details. As skilled as moldmakers are, they won’t be able to read your mind when it comes to what you’re looking for. Include as many specifics as you can at this stage, including the number of cavities, the steel, the desired lifespan of your mold, and any guarantees that you might need. If you aren’t too sure on any of these topics, then tell your moldmaker, and they will be able to help you settle on what’s right for your needs. The more accurate you make your RFQ, the more accurate a quote you will receive in return. Be open about why you want a quote . If you simply need a general quote to pass on to another...