Ceramic casting sand for sand 3d printing Featured Image

Yashi na zinari don gyare-gyaren yashi

Takaitaccen Bayani:

Foundry Ceramic Sand, a fasaha mai suna "Sintered Ceramic Sand for Foundry", wanda kuma ake kira da ceramsite, ceramcast, iri ɗaya tare da cerabeads, wasu ƙasashe kuma ana kiransu Golden Sand, kyakkyawan siffar hatsin wucin gadi wanda aka yi daga bauxite calcined. Babban abun ciki shine aluminum oxide da Silicon oxide. Yashi yumbu, yana da kyawawan kaddarorin fiye da na yashi na silica don samun kyakkyawan aiki a cikin ginin. Yana da babban refractoriness, ƙaramin haɓakar thermal, haɓaka mai kyau na angular, ingantacciyar haɓakawa, Babban juriya ga lalacewa, murkushewa da girgiza thermal, babban haɓakawa.

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Cikakken Bayani

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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.

Abubuwan Yashi na yumbu

Babban Abun Sinadari	Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Siffar hatsi	Siffar
Angular Coefficient	≤1.1
Girman Juzu'i	45μm -2000μm
Refractoriness	≥1800℃
Yawan yawa	1.5-1.6 g/cm3
Thermal Fadada (RT-1200℃)	4.5-6.5x10-6/k
Launi	Yashi
PH	6.6-7.3
Ma'adinan Ma'adinai	Soft + Corundum
Farashin Acid	＜1 ml/50g
LOI	0.1%

Amfani

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.

Aikace-aikace

A matsayin tsaka tsaki abu, KAIST yumbu yashi yana da amfani ga acid da alkali resins.

Ana iya amfani dashi ko'ina don yin simintin ƙarfe, simintin ƙarfe da simintin ƙarfe mara ƙarfe, kamar simintin kumfa da aka ɓace, yashi mai rufi, yashi guduro, akwatin babban sanyi, daidaitaccen simintin simintin, da bugu na 3D.

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

Aikace-aikace

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

Shiryawa da Bayarwa

Golden-sand-for-sand-molding-castings-(4)

Shiryawa da Bayarwa

Sassan Rarraba Girman Barbashi

Za'a iya daidaita girman girman barbashi bisa ga buƙatun ku.

raga		20	30	40	50	70	100	140	200	270	Pan	Farashin AFS
μm		850	600	425	300	212	150	106	75	53	Pan
Lambar	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