Water glass casting refers to the process in which water glass is added into the molding materials in proportion (usually silica sand) and then gets stirred and mixed for 6-8 min, and then grind into “sodium silicate-bonded sand”. Then the sand is put into the mould boxes in which CO2 has been much blown into. CO2 starts the chemical reaction with the water glass to form the silica gel which hardens the sodium silicate-bonded sand. Then the whole casting process is complete after drawing,mood assembling and pouring procedures.
Water glass casting is widely applied throughout all kinds of departments of the national economy such as automobile castings, engineering machinery castings, agricultural machinery castings, motor castings, elevator castings, fire control, metal castings and ship castings. As for the agricultural machinery castings, there are a lot of machines and accessories made through the water glass casting like the principal axis of draught fans and parts of the tractors.
Parameters of Water Glass Casting:
|Applicable Material||cast steel,cast iron,stainless steel,nodular cast iron,high chromium iron,high manganese steel,alloy steel|
|Material Standard||GB, ASTM, AISI, DIN, BS, JIS, NF, EN, AS, ARR|
|Surface Roughness||Ra 6.3|
|Application||Auto, motorcycle,valve, marine, machine tools, hardware,railway, gear,impeller, pump, reducer, motor, mining machinery, engineering machinery, transmission machinery, forestry machinery, communal facility, etc.|
|Drawings software||Pro/E, Auto CAD, Solidwork, CAXA UG, CAD/CAM/CAE.|
|Machining||Turning, milling, drilling, grinding, threading ,NC, etc.|
|Finishing||Sand blasting, polishing, plating, acid treatment, anodizing, painting, etc.|