wearable insulating Silicon Nitride ceramic bolt screw
Reputation depends on quality, quality comes from Hard!
Silicon Nitride Ceramic:
Neck is a stamping method that reduces the Refractory Industrial Mullite Ceramics Crucible Machinery diameter of the open end of the stretched flangeless hollow part or tube blank. The diameter of the end of the workpiece should not change too much before and after the necking, otherwise the end material will wrinkle due to severe compression and deformation. Therefore, it is often necessary to shrink the neck from a larger diameter to a smaller diameter. The Refractory Industrial Mullite Ceramics Crucible Machinery surface and internal properties of stamping sheet material have a great influence on the quality of stamping products. The requirements for stamping materials are: precise and uniform thickness. The stamping die is precise and has a small gap. If the thickness of the sheet is too large, the deformation force will be increased, and the material will be jammed, and even the die will be swelled. If the sheet is too thin, it will affect the quality of the finished product and even crack during deep drawing. The surface is smooth, no spots, no scars, no scratches, no surface cracks, etc. All surface defects will remain on the surface of the finished workpiece, and the crack defects may extend deep and wide during the process of bending, deep drawing, and forming, resulting in waste products. The yield strength is uniform without obvious directionality. Anisotropy (see plastic deformation in Refractory Industrial Mullite Ceramics Crucible Machinery the drawing, flanging, bulging and other stamping processes, due to the occurrence of all-directional yielding, the inconsistent amount of plastic deformation will cause uneven deformation and inaccurate forming. Inferior or scrap products. High uniform elongation. In the tensile test, the elongation before the neck phenomenon of the sample begins to be called uniform elongation. During deep drawing, the deformation of any area of the sheet cannot exceed the uniform elongation of the material Range, otherwise uneven deformation will occur.
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↓
Color: Black Grey
Density: ＞3.2g/cm3
Hardness: HRA90
Vickers Hardness (Hv50): ＞1550 HV0.5
Modulus of Elasticity: 290Gpa
Flexural Strength: ＞600Mpa
Compressive Strength: 2500Mpa
Modulus of Elasticity(25°C): 65Gpa
Fracture toughness:＞6.0 Mpam1/2
Maximum Use Temperature: 1200°C
Thermal Conductivity:15-20 W(m.K)
Thermal Expansion Coefficient: ＞3.1 10-6/°C
Thermal Shock Resistance: 500 △T°C
Special Heat Capacity: 700 KJ/kg.K
Dielectric Strength: 1 KV/mm
Dielectric Constant: er
Volume Resistivity(20°C): 1.0*10(12)Ω.cm
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.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
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FAQ
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
