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Bauxit homok öntödék számára

Rövid leírás:

Bauxite sand is a special foundry molding sand for iron and steel casting. It also goes by trade names such as: Green Beads, MinSand, Green Sand, Ceramic Beads, and Spherical Beads. It’s spherical particle shape guarantees a very good flowability. Due to the special surface structure the binder/hardener demand compared to other molding sands can be reduced. Bauxite sand has a very good refractoriness of up to 1800 degree Celsius and a low thermal expansion. It is well regarded as a revolutionary new foundry sand.

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Bauxite Sand Property

Fő kémiai komponens	Al₂O₃≥53%, Fe₂O₃＜4%, TiO₂＜3%, SiO₂≤37%
Szemcse alak	Gömbölyű
Szögegyüttható	≤1.1
Particle Size	45μm -2000μm
Tűzállóság	≥1800℃
Testsűrűség	1,45-1,6 g/cm3
Hőtágulás (RT-1200℃)	4,5-6,5x10-6/k
Szín	Homok
PH	6.6-7.3
Ásványi összetétel	Puha + Korund
Savköltség	＜1 ml/50g
LOI	＜0,1%

Előny

● Offers longer work life and reduction of sand usage

● Spherical shape compared with angular shaped grains allows for easier separation from cast parts and improved collapsibility resulting in lower scrap and casting efficiency

● Offers lots of price savings compared with Zircon, Chromite, Black ceramic sand, Naigai cerabeads sand and silica sand.

● Lower thermal expansion and thermal conductivity. Casting dimensions are more accurate and lower conductivity provides better mold performance

● 30-50%-kal kevesebb gyantát igényel

● Egyetlen homokként használható

● Jobb tartósság más öntödei homokokhoz képest

Alkalmazás

Bauxite sand is an artificial foundry sand that is regarded as the right substitute for Cerabeads ceramic sand, fused ceramic sand, chromite sand, zircon sand, fused silica sand, and silica sand. It can be widely used in all types of foundry sand molding, such as resin-coated sand, no-bake sand, cold core box, green sand, precision casting, lost foam casting and 3D printing etc., excellent properties help you reduce more production cost.

Parts of Particle Size Distribution

A részecskeméret-eloszlás az Ön igényei szerint testreszabható.

Háló		20	30	40	50	70	100	140	200	270	Pán	AFS
μm		850	600	425	300	212	150	106	75	53	Pán
Kód	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

bauxite frac sand

bauxite sand

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