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Sand mold and sand core all adopts the resin self harden sand molding mold and core

hits:1122    date:2018-10-09

Professional liebherr excavator lock pins production supplier said due to both of the sand mold and sand core for finished excavator bucket tooth has adopts the resin self harden sand mold and sand core, so during the sand core molding process, both of the sand mold and sand core must tightness enough, to reduce the total expansion value during the pouring process.

On the surface for both sand mold and sand core has coating a quick drying zircon powder coating paint, but professional liebherr excavator lock pins production supplier needs strict control the coating layers thickness, should never has the bead phenomenon.

To reduce the total deformation value for both sand mold and sand core, professional liebherr excavator lock pins production supplier needs baking them in the oven with suitable time, or their final assemble precision degree would cant match with standard requirement and needs.

When fine assemble and install the excavator tooth top and teeth seat, select the profession angle milling machine and sand grinding wheel is very necessary, for example, each liebherr excavator lock pins products must be check by standard examination, but provide the testing trial assembly too.

 

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