hot pressing moulding sintered grinding Si3N4 roller washer
Reputation depends on quality, quality comes from Hard!
Silicon Nitride Ceramic:
In addition to the hydraulic Laser Drilling Electronic Ceramic Substrate Strap Board press for forming thick plates, the stamping equipment generally uses mechanical presses. Conveyor and other machinery, mold library and quick mold change device, and controlled by computer program, can form a high-productivity automatic stamping production line. In the case of producing dozens or hundreds of stamping parts per minute, the processes of feeding, stamping, discharging, and discharging waste are completed in a short time, and accidents of personal, equipment and quality often occur. Therefore, safe production in stamping is a very important issue. Generally, in the stamping process of the workpiece, because the temperature will rise quickly during the stamping process, especially in the cold forging stamping process, it must be lubricated with lubricating products. If lubrication is not used, it will be stamped directly, welded-assembled, and there is no oil on the surface. The parts are easy to weld and assemble. Research and practice have shown that Amicable Metal Inert Gas Arc Welding, Tungsten Gas Shielded Arc Welding, Laser Drilling Electronic Ceramic Substrate Strap Board and Resistance Welding have excellent results. In the progressive die, the shape of the punch is formed by punching the remaining material around the punch. The main reason for the turning and distortion of punching parts is the influence of punching force. When punching, due to the existence of the punching gap, the Laser Drilling Electronic Ceramic Substrate Strap Board material is stretched on one side of the concave die (the material is warped upward) and compressed on the side of the convex die. When using the unloading plate, the unloading plate is used to compress the material to prevent the material on the die side from warping upwards. At this time, the force of the material changes accordingly. As the discharge plate increases its pressing force, the material on the punch side is stretched (compression force tends to decrease), while the material on the concave die surface is compressed (tension force tends to decrease). The overturn of the stamping part is caused by the stretching of the material on the die surface. Therefore, when punching, pressing and pressing the material is the key to prevent the punching from turning over and twisting.
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
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, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
