high compressive silicon nitride ceramic chunk block

high compressive strength silicon nitride ceramic chunk block

Reputation depends on quality,  quality comes from Hard!

Silicon Nitride Ceramic:

Plasticizing pressure: (back pressure) When a screw injection machine is used, the pressure on the top of the screw when the screw is turned back is called plasticizing pressure, also known as back pressure. The size of this pressure can be adjusted by the overflow valve in the hydraulic system. In the injection, the size of the plasticizing pressure is constant with the rotation speed of the screw. When the plasticizing pressure is increased, the temperature of the melt will be increased, but the speed of the plasticizing will be reduced. In addition, increasing the plasticizing pressure can often make the temperature of the melt uniform, the mixing of the pigments and the discharge of the gas in the melt. In general operation, the decision of plasticizing pressure should be as low as possible under the premise of ensuring good product quality. The specific value varies with the types of plastics used, but usually rarely exceeds 20㎏/c㎡. Injection pressure: In the current production, the injection pressure of almost all injection machines is based on the pressure applied by the plunger or the top of the screw to the plastic (converted from the oil pressure) as the standard. The role of injection pressure in injection molding is to overcome the flow resistance of the plastic from the barrel to the cavity, to give the melt filling rate and to compact the melt.
The injection pressure is divided into injection pressure and holding pressure, usually 1 to 4 injection pressure + 1 to 3 holding pressure. Generally, the holding pressure is less than the injection pressure. Adjust according to the actual plastic material used to achieve the best The physical properties, appearance and size requirements.

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↓

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.

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.
 
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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.