Sand mold casting
is also called the foundry casting, refers to the use of clay bonded sand for casting, molding materials production is the process method has a long history, is also the most widely application scope.
With a long history dating back to thousands of years ago;
Its application scope, can be said that there is no place not all over the world.
Small make up today to tell you something about foundry casting small knowledge.
Sand mold casting mold used in general by a mix of sand mold and core.
In order to improve the surface quality of castings, often in the sand mold and core brush a layer of paint.
Sand casting coating is the main component of high refractoriness, high temperature and chemical stability, good powdery materials and binder, and with easy application of carrier (
Water or other solvents)
And all sorts of additive.
Sand casting is the basic raw materials of casting sand and sand binder.
The most commonly used foundry sand is silica sand.
Silica sand cannot satisfy the requirement of high temperature performance, the use of zircon sand and chromite sand, corundum sand and other special sand.
Made for the sand mould and core has a certain strength, when handling, type and pouring liquid metal, without deformation or damage to the general to add sand binder in foundry, will become a sand loose sand bonded together.
Is the most widely used sand binder clay, also can be used in a variety of drying oil or semidrying oil, water soluble silicate and phosphate and a variety of synthetic resin as a sand binder.
Used in sand casting
sand mold by sand binder used in the outside of the green sand mold and build strength in different ways into clay, dry clay sand mould and chemical hardening sand mold.
Above is the knowledge about foundry casting, hope can help to you.
Today small make up to you at this point, let's see you next time.
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