Foundry sand hian a hnuaia chi hrang hrangte hi a huam ber a ni.
1.Silica sand: Mineral composition ber chu SiO2 a ni.Silica sand hi natural silica sand,natural sand thlan bik leh artificial silica sand tiin then belh theih a ni. Natural silica sand hi non-ferrous alloy casting,cast iron parts ,small casting parts leh medium-sized steel costings atan molding leh core sand atan hman a ni.Natural silica sand thlan bikte hi moulding sands hrang hrang atan hman a ni a, core sand te chu organic compounds binder atan hman a ni bawk.Artificial silica sand hi moulding sand atan hman a ni a, steel tan core sand atan hman a ni bawk castings te pawh a awm
2.Non siliceous sand: chi hrang hrang quartz sand, limestone sand,etc.Quartz sand hi granular material a ni a, quartz lung hi main raw material atan tihkeh a,a rawng chu milky white emaw semi transparent emaw a ni. Casting,fireproof material.metallurgy.chemical industry leh field dang dangah te hman a ni tlangpui.Limestone sand hi limestone tihkeh hmanga siam a ni ,mineral composition ber chu CaCO a ni3.Steel castings atan molding sand leh core sand atan hman a ni.Chu bakah,chromite sand,olivine sand ,bead sand te pawh a awm bawk. adangte.
3.Special sand: silica sand-a high-temperature performance-in hman tur a mamawh a tlin loh chuan, special sand zircon sand,chromite sand leh corundum sand te hman a ni.Entirnan, zircon sand,a mineral component ber chu ZrO a ni2, hi sand core emaw surface sand emaw powder coating atan cast steel lian leh alloy steel parts atan hman a ni.Chromite sand-a mineral lian ber berte chu chromite,magnesiochromite leh aluminum magnesium chromite te an ni a, a chemical composition ber chu Cr2O3.Corundum sand-a mineral awm dan ber chu - Al2O3,chu chu investment casting leh ceramic mold casting atan shell material atan hman a ni.
A pum puiin, chi hrang hrang os casting sand ,leh casting sand chi hrang hrang hi casing process leh casting type hrang hrang atan a tha hle.Casting sand thlan hunah,casting mamawh leh condition bik zawm a ngai a ni.
Mullite foundry sand ,foundry flour leh foundry powder quality sang - kan siam chhuak a, kan thawn chhuak bawk
