China Factory 75% Alumina Ceramic Tube for Electrical Switch Fuse

75% Alumina Ceramic Tube for Electrical Switch FuseThe specification of the technical ceramic insulatorOption Materialsalumina, zirconia, silicon carbide, silicon nitride, steatite optionalOuter diameter 0.5 ~800 mmLength1~1000mmRoughnessTo be Ra0.05Surface treatmentPolished, Glazed, Metalized availabilityCosmeticSmooth surface without contamination, deformation, and crackThe accuracy achieved after precision machining(1) Axis: roundness 0.002 mm, concentricity 0.002 mm, smoothness Ra0.1; (2) Hole: the minimum processing hole diameter is 0.2 mm and the depth is up to 6mm; (3) Slot: min. value to be  0.1 mm  of narrow groove, and grooves with custom shapes; (4) Plane: 0.1mm sheet with minimum processable thickness, parallelism 0.001mm, measurement tolerance 0.001 mm, finish Ra0.1;  (5) Thread: The minimum machinable M2 internal thread, the accuracy of GB-7h, the external thread size is not limited, the accuracy is GB-6g. The main characteristics of the technical ceramic insulator1. They offer different grade dimensional accuracy per sintered only, precision machining  2. They are more cost-effective ceramic parts with equivalent performance among all other technical ceramics 3.. High hardness, it is can be up to 1700 HV, and Super compressive strength up to 2240 Mpa 3. High heat resistance: Alumina ceramic parts offer excellent thermal stability, which means that it is widely used in areas where resistance to high temperatures is essential. 4. Good wear resistance: it is an ideal  choice  to wear parts in high abrasive industry 5. High electrical resistivity: used in all-electric products, electric heating products, and wear-resistant machinery parts. 6. High corrosion resistance: It is insoluble in water and only slightly soluble in strong acid and alkaline solutions. Good chemical stability of alumina leads to high corrosion resistance. 7. We support a variety of customized alumina ceramic parts base on customer's drawing, sample, or reference parameters The description of alumina ceramic componentsAluminum oxide (Alumina) has an extensive application due to its versatility and low cost of material than other advanced ceramics. Alumina offers high electrical insulation resistance, high-temperature resistance, strong hardness, wear resistance, and good chemical stability, making it a good material to withstand high temperature and chemical corrosion. Our factory produces a selection of purity of alumina from 75% to 99.8%, all of the ceramic parts we supplied are with a dense body via dry pressing, hot pressing, ceramic injection molding, and ISO pressing. In order to achieve some special application for fitting, reducing the friction, increasing the insulation, we provide a serial of secondary processes after sintering, covering CNC machining, polishing, glazing, and metalizing. We manufacture a wide range of alumina ceramic rings, including ceramic tubes, ceramic rings, ceramic discs, ceramic rods, ceramic arms, ceramic wire guides. Whatever, its a prototyping case, or high volume demand, we believe we are able to provide you a desirable solution. The application of alumina ceramic productsRemark:Alumina ceramic parts are widely used in the electronic, electrical, machinery, chemistry, ceramic seal, mineral, new energy, military, aerospace, almost all modern industries. The gallery of other alumina ceramic partsRemark:We produce a series of alumina ceramic products, including alumina metalized ceramics, ceramic substrate, ceramic wafer, ceramic guides, and so on. Datasheet of technical ceramic materialsPropertyUnitsMaterials99.5%Al2O399%Al2O395%Al2O3ZrO2Si3N4Densityg/cm3≥3.85≥3.80≥3.60≥6.0≥3.2Water absorption%00000HardnessHV17001700150013001550Flexural strengthMpa≥379≥338≥320≥1200≥600Compressive strengthMpa≥2240≥2240≥2000≥1990≥2500Fracture toughnessMpa m1/24-54-53-46.5-86Max. service temperature(Non-loading)ºC16751600150010001200CTE (20-800ºC)1×10 -6 /ºC6.5~8.06.2~8.05.0~8.08.0~9.53.1Thermal shockT(ºC)≥250≥200≥220≥300≤1000Thermal conductivity(25ºC)W/m.k302924315~20Volume resistivity (25ºC )ohm.cm>1 x 10 14>1 x 10 14>1 x 10 14>1 x 10 11>1 x 10 12Insulation strengthKV/mm19181817 Dielectric constant(1Mhz)(E)9.79.59.529 Why choose us?1.10+ years of manufacturing experience in OEM, ODM, and professional management & production team        2. Powerful R&D to support custom prototyping cases and projects, also large-scale mass production capability 3.  In-house complete manufacturing equipment, including forming, sintering, precision machining process.        4. Rigorous quality control system and processes per ISO9001: 2008, including IQC, IPQC, QA, OQC 5. Surpassing pre-sales and after-sales service, everything we do just for the business growth of our customers.  Main Manufacturing EquipmentAdvanced Inspection Equipment                              FAQs (Frequently Asked Questions)Q1. Are you a factory or trading company?A: We are a manufacturer. You are welcome to visit our factory. Q2: Do you send a sample t