Foundry sand processing hi casting process-a thil pawimawh tak a ni a, a quality hian castings-te precision leh surface quality a nghawng nghal vek a ni. Foundry sand hi raw sand, binder leh additives. atanga siam a ni ber a, composition method leh processing process dik tak hmangin, casting mamawh hrang hrang phuhruk nan foundry sand performance chu tihchangtlun theih a ni.
Raw Sand hi foundry sand-a thil bulpui ber a ni. raw sands hman tlanglawn tak takte chu silica sand, zircon sand, chromite sand, etc. silica sand hi a tam avangin hman a ni nasa hle a, a man tlawm. Mahse, silica sand hian refractoriness leh thermal stability tha lo tak a nei a ni. chuvangin, high-temperature alloys emaw, high-perform emaw sands, high-perform emaw castings, high-perform emaw as, high-perform emaw casting-ah chuan. Chromite sand thlan an ni fo.
Binders hian foundry sand. common binders-a sand particle connect leh sand mold siam hna an thawk a, chungte chu clay, resin leh water glass. clay binders te hi a man a tlawm a, casting pangngai atan a tha a Resin binders hian chakna sang tak leh fast hardening speed an nei a, high-precision casting atan pawh an tha hle; Water glass binder te hi an environmental performance tha tak avangin an hlut zauh zauh a ni.
Additives dah belh hian foundry sand. property thenkhat a ti tha thei a, entirnan, coal powder dah hian sand mold anti-sticking performance a ti tha thei a Sawdust dah belh hian sand mold boruak permeability a ti tha thei a, pore defects. a ti tlem thei bawk a, chubakah, additive dang, graphite powder, coke powder, etc. te chu sand mold-a comprehensive performance tihchangtlun nan mamawh bik angin a dah belh theih bawk.
Foundry sand-a processing methods te chu sand mixing, compaction leh regeneration. sand mixing chu sand mold, compacting-a uniformity leh stability awm theihna turin original sand, binder leh additives te chu proportion engemaw chen mix a ni. compacting chu sand mold chu vibration, compaction leh method dang hmanga℃engemaw chen a thlen theih nan, sand resegene-a process leh sand resegene-a deformation awm lote chu old regenele-a awm lo, a ni. Resources a humhim chauh a, mahse environment bawlhhlawh a tihtlem bawk.
Composition method leh processing process dik tak hmangin foundry sand performance a ti tha thei a, casting cost pawh a tlawm thei a, casting quality pawh a ti tha thei.