详细说明
Product Name: Hot Sale 99 Alumina Boat Rectangular Crucibles Model NO.: GT-0036 Type: Heat-Resistant Material Shape: Rectangular, Crucible Feature: Long Time Materials Refractoriness (?): Refractoriness> 2000 Material: Alumina Trademark: SHANGTAO Transport Package: Plywood Case Specification: RoHS Origin: Shanghai Product Description Specification: 5ml 10ml 15ml 20ml 25ml 30ml 50ml 100ml 150ml 200ml-2500mlPoints:High alumina purity:al2o3>99%,good corrosion resistance.High temperature resistance,1600C in long use,1800C in short use.Good thermal shock,no easy to crack.High slip casting densityItemAlumina milling potChemical componentAl 2 O 3≥99R 2 O≤0.2Fe 2 O 3≤0.1SiO 2≤0.2Vol.density(g/cm 2 )≥3.80Apparent Porosity(%)<1Bending Strength(Mpa)>350Compression strength(Mpa)>12000Permittivity ∑(1MH z )2The max.operating temperature1800PurposeMain purpose of crucibleand saggerisas acontainerforanalysis andfiringof material and product applied in various industries.For example: analysis of coal, meltingofthemetal,analysis and firing of chemical raw materials,analysis and melting of glass, analysis and firing of rare earthmaterials and mineral,firing of hightemperatureitems such as ceramicproducts and meltingof single-crystalrawmaterials.UseUnder normal circumstances,firstly put the items which need to be analyzed and fired intothecrucibleorsagger.Then heat.The speed of heatinganddrop in temperature are accordingto thecharacteristicsofequipment and products,fast or slow.Because of the thermal expansion of raw material which the crucibles and saggers are made of,too quick heating or cooling will easily lead to cracking of thecruciblesandsaggers.The best way is slowing down,which can prolong the life of them.
