What factors will affect the quality of metal castings for machine
Machine tool castings is also called large
type castings, they include bodies, workbench, stand column, cross
girders and connect girders. The quality of the machine tool
castings are affected by the following factors:
The design process property of the machine tool castings
During designing, the designers should depend on the work condition
and metal materials to determine the shape and size of the machine
tool castings, besides, the foundries should consider the
rationality of design based on the metal casting alloy and metal
casting process property in order to avoid and reduce transformation
and crack of the metal castings.
The reasonable metal casting methods
The foundries should choose reasonable molds and core produced
methods that depend on the structures, weights, sizes, the
properties of the metal casting alloy and the work conditions in
order to produce high quality products.
The quality of the casting raw materials
If the quality of the metal materials, fireproofing materials, fuel,
fusing agent, modifier, cast sand and adhesion agent do not reach to
the level of standard, there are defects on the metal castings, such
as air holes, pin holes sticky sands and residuals, these will
affect the qualities of outer and inner of the
metal castings, what’s worse
the produced metal castings are discarded as useless.
The operation of casting process
The foundries should make reasonable process operation, increase the
technique level of workers and implement the right process
scheduling to increase the production rate and quality of the metal
So the metal foundries
should do their best to improve all aspects to increase the quality
of machine tool castings and decrease source wastage.
Machine Base Castings