Silicon Nitride Ceramic Ball Valve Seal Ring Antioxidant CNC Machining Parts Manufacturer

silicon nitride ceramic ball valve seal ring antioxidant CNC machining parts manufacturerReputation depends on quality, quality comes from Hard!Silicon Nitride Ceramic:Silicon nitride ceramic is an inorganic material ceramic that does not shrink when sintered. Silicon nitride is very strong, especially hot pressed silicon nitride, which is one of the hardest substances in the world. It has high strength, low density and high temperature resistance.Si3N4 ceramic is a covalent bond compound. The basic structural unit is a [SiN4] tetrahedron. The silicon atom is located at the center of the tetrahedron. There are four nitrogen atoms around it, which are located at the four vertices of the tetrahedron, and then every three A tetrahedron shares the form of an atom, forming a continuous and robust network structure in three dimensions.Alumina ceramic properties: High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.Data Sheet↓ItemUnitTypical ValuesPhysical Properties Densityg/cm3>3.2Mechanical PropertiesHardnessHRA90Vickers Hardness (Hv50)HV0.5>1550Modulus of ElasticityGpa290Flexural Strength Mpa>600Compressive Strength Mpa2500Fracture toughnessMpam1/2>6.0Thermal PropertiesMaximum use temperature°C1200Thermal ConductivityW/(m.k)15-20Thermal Expansion Coefficient10-6/°C>3.1Thermal Shock Resistance△T°C500Specific Heat CapacityKJ/kg.K700Electrical PropertiesDielectric Strength KV/mm1Dielectric ConstanterVolume Resistivity at 20°CΩ.cm1.0X10(12)Application industry: Machinery, electronic, semiconductor, chemical, petroleum, smelt.Specific application: Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.Company InformationShenzhen Hard Precision Ceramic CO.,Ltd founded in 2007, located in Shenzhen of China. We are a company that integrates development, design, molding, sintering, production and sales of precision ceramic products. After 10 years of development, we have cooperated with more than 2000 customers and 60 universities; Our factory covers an area of 2000 square meters, 50 employees, and annual production value of nearly 20 million. We have a higher visibility and better reputation in the same industry.Our products include ceramic rods, tubes, plates, blocks and precision parts for industrial. We have all-line high precision equipments from ceramic forming, sintering to precision machining. Hope for a wide range of sincere cooperation with customers at home and abroad. Why Choose Us?1.12 years of professional production industrial ceramics factory2.High quality products with low price3.High precision parts with lowest tolerance4.Show time for production 5.Has a group of experienced, professional and efficient R&D team6.Has a good reputation in China and abroad.7.MOQ is not limited, small quantity is welcome.8.Vigorous team and good after-sales serviceProduct ShowFactory ShowPackaging & ShippingOur TeamFAQ Q: Are you trading company or manufacturer ?A: We are factory.Q: How long is your delivery time?A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.Q: Do you provide samples ? is it free or extra ?A: Yes, we could offer the sample for free charge but do not pay the cost of freight.Q: What is your terms of payment ?A: Payment=1000USD, 50% T/T in advance ,balance before shippment. /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1