Ceramic casting sand for sand 3d printing Featured Image

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Sharaxaad Gaaban:

Sanduuqa Ceramic Sand, oo farsamo ahaan loogu magac daray "Sintered Ceramic Sand for Foundry", sidoo kale loo magacaabay sida ceramsite, ceramcast, oo la mid ah cerabeads, dalalka qaar ayaa sidoo kale loo yaqaan Golden Sand, waa qaab wanaagsan oo hadhuudh ah oo dabiici ah oo laga sameeyay bauxite calcined. Waxa ugu muhiimsan ee ku jira waa aluminium oxide iyo Silicon oxide. Ciidda dhoobada, waxay leedahay sifooyin aad uga wanaagsan kan ciidda silica si ay u hesho waxqabad wanaagsan oo ku saabsan aasaaska. Waxay leedahay refractoriness sare, ballaarinta kulaylka yar, coefficient xagal wanaagsan, socodka aad u fiican, caabbinta sare ee xirashada, burburinta iyo shoogga kulaylka, heerka dib u soo celinta sare.

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Foundry Ceramic Sand, technically named as “Sintered Ceramic Sand for Foundry”, also named as ceramsite, cerabeads, ceramcast, some countries is also named Golden Sand, is good artificial spherical grain shape which is made from calcined bauxite . Its main content is aluminum oxide and Silicon oxide. Ceramic sand, has much better properties than that of silica sand to gain a better performance in foundry. It has high refractoriness, little thermal expansion, good angular coefficient, excellent flowability, High resistance to wear, crush and thermal shock, high reclamation rate.

Hantida Ciidda dhoobada

Qaybta Kiimikada ugu weyn	Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Qaabka hadhuudhka	Goobaysan
Iskuxidhka xagal	≤1.1
Cabirka Qayb ahaan	45μm -2000μm
Refractority	≥1800℃
Cufnaanta Bulk	1.5-1.6 g/cm3
Balaadhinta kulaylka (RT-1200℃)	4.5-6.5x10-6/k
Midabka	Ciid
PH	6.6-7.3
Halabuurka macdanta	Jilicsan + Corundum
Qiimaha aysiidhka	＜1 ml/50g
LOI	0.1%

Faa'iidada

Kaist ceramic foundry sand is about half as light as zircon and chromite, is about third as light as fused ceramic sand. Compared to these natural sand and other foundry media (the material is able to turn out about twice the number of molds per unit weight). Kaist ceramic foundry sand can deliver mold and core packages with a range of benefits that include higher-strength sand casting packages, with high heat resistance, low thermal expansion, improved final part resolution and a smoother surface finish. It can also be handled very easily, saving labor and transfer power costs. However, the manufacturer recommends paying attention to the amount of binder addition.

Codsiga

Sida walxo dhexdhexaad ah, ciid dhoobada KAIST waa mid lagu dabaqi karo aashitada iyo alkali.

Waxaa si weyn loogu isticmaali karaa shubista birta, birta shubka iyo biraha aan biraha lahayn, sida tuurista xumbo luntay, ciid dahaarka leh, ciid resin, sanduuqa xudunta u ah qabow, shubista saxda ah, iyo daabacaadda 3D.

Golden-sand-for-sand-molding-castings-(6)

Codsiga

Golden-sand-for-sand-molding-castings-(3)

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Qaybaha Cabbirka Qaybaha Qaybinta

Qaybinta cabbirka walxaha waxaa lagu habeyn karaa iyadoo loo eegayo baahidaada.

Mesh		20	30	40	50	70	100	140	200	270	digsi	AFS
μm		850	600	425	300	212	150	106	75	53	digsi
Koodhka	20/40	15-40	30-55	15-35	≤5							20±5
	30/50	≤1	25-35	35-50	15-25	≤10	≤1					30±5
	40/70		≤5	20-30	40-50	15-25	≤8	≤1				43±3
	70/40		≤5	15-25	40-50	20-30	≤10	≤2				46±3
	50/100			≤5	25-35	35-50	15-25	≤6	≤1			50±3
	100/50			≤5	15-25	35-50	25-35	≤10	≤1			55±3
	70/140				≤5	25-35	35-50	8-15	≤5	≤1		65±4
	140/70				≤5	15-35	35-50	20-25	≤8	≤2		70±5
	100/200					≤10	20-35	35-50	15-20	≤10	≤2	110±5