Porosity in die casting parts. Die casting porosity is an unwanted result brought about by poor handling and method. It would be unclear until you know the meaning of die casting. Die casting is a technique or process of pushing an ample amount of molten material such as metal, plastic or resin into a container then pushing it with great force in a mold until it cools down and takes its form. Usually, metals used for die casting are non-Ferrous metals, or those containing no Iron, because Iron promotes oxygenation and rusting of the metal. The most ordinary metals used are magnesium, copper, zinc, lead and aluminum. Porosity in die casting parts is the presence of large bubbles of air inside the molded material, which makes it easier to break up. Porous die casted materials are commonly regarded to as something with low class and low quality.
Is there a way to reduce the occurrences of porosity in die casting parts? Fortunately, there are a few simple ways to be able to reduce and even eliminate the chances of having porous results in die casting. First of all, you need to conduct check-ups on your machines on a regular basis. Crevices and chinks on the surfaces of your molds allow air to seep through the machine, causing air bubbles within the plastic and metals. You can easily fix this problem by sealing it up with a sealant and cleaning it. Another thing you need to consider is to replace your molten materials with ones which have higher quality. The less cohesive and pure your metals and resins are, the more likely will it cause air bubbles inside.