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Showing posts with the label Ceramic Nozzles

The use of boron nitride ceramic and zirconia ceramic nozzles in different processes of powder metallurgy

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  In powder metallurgy (PM) processes, boron nitride and zirconia ceramic nozzles are used depending on the type of metal materials.     Main Features of Ceramic Nozzles   High-temperature resistance: withstands temperatures above 1500  ° C from molten metals or plasma flames.   Wear resistance: resists erosion from powder or gas flow for long-term operation.   Chemical inertness: does not react with active metals or gases.     Applications at Different Stages of Powder Metallurgy Stage Process Functions of Nozzles Ceramic Nozzles Typical Metals Powder Preparation Gas Atomization High-pressure inert gas (such as nitrogen or argon) impinges on the molten metal stream to form fine powder; ceramic nozzles control flow and particle size. Boron Nitride and Zirconia High-purity or reactive metals such as titanium and nickel-based alloys. Water Atomization Ceramic nozzles provide corrosion resistance and precise flow control. Zirconia Used in high-...

Magnesium Stabilized Zirconia (MgO-ZrO2) Ceramic Nozzles

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  1. MgO-ZrO2 Ceramic Metering Nozzles (lnserts) They are mainly used in steel making continuous casting ladles, converter tundishes, and converter taphole slag retaining mechanisms. Features: Good erosion resistance, corrosion resistance Thermal shock stability The service time is generally 50 hours, which solves problems such as clogging, cracking and diameter expansion. Related general products: Continuous casting tundish upper nozzle Tundish quick change nozzle Fixed diameter nozzle for continuous casting. 2. MgO-ZrO2 Ceramic Atomizing Nozzles They are mainly used in the powder metallurgy industry, the smelting of ferrous and non-ferrous metal powders, such as nickel-based alloy powders, copper powders, stainless steel powders, iron powders and other super alloy powders. Features: Higher density, Excellent resistance to high temperature corrosion, Resistance to erosion by metallic liquids Thermal shock performance. Different stabilizer materials and particle sizes are used acco...