gravity die casting - zinc die casting process
This is a mold casting process (permanent).
This process is done by pouring the molten metal into the mold from the spoon container, except for just applying external forces.
This is similar to the way sand castings are made, but the filling can be controlled by tilting the mold.
Gravity die casting has certain advantages over S sand casting, which are better mechanical properties and better surface finish.
The type of components produced by this casting method is well suited for small and medium sized companies, and these castings are usually weighing about 20 kg and are produced from zinc-based alloys.
This type of casting allows the production of more volume of precision components, which is also a very cost-effective method for half to large quantities that require minimum finishing operations, especially with sand type
The equipment used to make this type of casting is called a gravity mold tool, which is able to produce these castings for several years, during which it does not even require any form of renovation.
The use of a variety of tools can greatly increase productivity, as well as heat treatment of components to improve or adjust the properties.
This is a fairly professional area, and I would suggest you take a good look at the companies that offer this service, search on the internet and find the ones that best suit your needs.