What is Sand Casting | Sand Casting Process 10 Steps
You may ask what sand casting is. Today, let's talk about this process that sounds tacky but is super practical. It is the magic of pouring molten metal into sand to create parts. It has been used from ancient bronze ware to automobile parts today. You didn't expect it, did you?
Want to know how sand casting is formed? Simply put, there are 10 steps: first make a model, prepare molding sand, make sand mold, combine boxes, pour, wait for cooling, unpack, clean burrs, check quality, and finally repair it. Sounds simple? In fact, there is a lot of knowledge in each step! For example, the molding sand must be adjusted just right, too wet or too dry.
Speaking of pouring, it's interesting. Watching the red metal liquid flow into the sand mold is a particularly shocking scene! But you have to control the temperature. If it is too high, the sand mold will burn out, and if it is too low, it will not be poured fully. The most exciting moment when the parts are cooled and the sand mold is knocked open to take out the casting is like archaeological treasure hunting. But don't be too happy too soon, you still have to clean the flash and polish it later. These delicate jobs are particularly patient.
We are serious about quality inspection! Every sand casting must undergo strict quality inspection: measure the size, check the surface, and take an X-ray if necessary. Although sand casting is a traditional casting process, our factory continues to innovate on this basis and brings a new production method! Fuding introduced 3D printing sand mold technology, complex curved surfaces can be formed in one go, and the precision is not like sand casting. We are also equipped with a fully automatic molding line, which can make dozens of sand molds in an hour, and the efficiency is very high! Traditional technology plus modern technology has increased production efficiency several times!
When it comes to products, we can make everything from small parts of a few grams to large castings weighing several tons. It also includes a variety of materials such as gray cast iron and ductile iron, and can be customized according to your needs. The large gear made for the wind power industry recently has a diameter of more than two meters. The customer used it for more than half a year and said that it is more durable than the imported one! There is also an engine bracket made for the automobile factory. The lightweight design saves 15% of the weight, but the performance is still good.
The ancient process of sand casting is still the backbone of the casting industry! The key is who does it and how to do it. Fuding has relied on "old technology, new methods" over the years. If you are also interested in sand casting products, you are welcome to visit our factory at any time. We guarantee that you will be impressed by sand casting!