The Non-Wetting Boron Nitride (BN) Ceramic Nozzle is designed for high-temperature flow control applications where molten metal adhesion, material buildup, and process contamination need to be reduced. It is commonly used in casting, molten metal handling, high-temperature spraying, and thermal processing equipment.
Unlike general ceramic nozzles used mainly for wear resistance or insulation, this BN ceramic nozzle is selected for its non-wetting behavior and clean release performance. When used in contact with molten aluminum, zinc alloy, magnesium alloy, glass melt, or high-temperature powder materials, it helps maintain smoother flow and reduces sticking on the nozzle surface.
CERAMPRO can manufacture custom ceramic nozzle parts based on customer drawings, samples, bore size, outlet design, mounting structure, and working environment. We can also support material selection and machining suggestions for customers who are still testing or improving their equipment design.
This nozzle is made from boron nitride ceramic, a material often used in high-temperature applications where low adhesion, thermal shock resistance, electrical insulation, and clean contact with molten materials are important.
| Material Type | Boron Nitride Ceramic / BN Composite Ceramic |
|---|---|
| Main Function | Non-wetting flow control surface for molten metal and high-temperature materials |
| Common Structures | Straight bore, stepped bore, tapered outlet, threaded body, flange base, or custom shape |
| Processing Method | Material forming, sintering, precision machining, bore finishing, and dimensional inspection |
| Custom Options | Outer diameter, inner bore, outlet angle, length, shoulder, thread, flange, and surface finish |
Boron nitride ceramic nozzles are suitable for high-temperature systems where ordinary metal nozzles or oxide ceramic nozzles may have problems such as sticking, clogging, contamination, or unstable material flow.
The main value of this BN ceramic nozzle is not only high-temperature resistance. More importantly, it helps solve practical problems in molten material handling, such as sticking, unstable flow, material buildup, and difficult cleaning. For equipment manufacturers, this can help improve process stability and reduce maintenance issues.
| Product Name | Non-Wetting Boron Nitride Ceramic Nozzle |
|---|---|
| Material | Boron Nitride Ceramic / BN Composite Ceramic |
| Available Shapes | Cylindrical nozzle, stepped nozzle, tapered nozzle, threaded nozzle, flange nozzle, custom special-shaped nozzle |
| Bore Structure | Straight bore, micro bore, tapered bore, stepped bore, or custom internal channel |
| Surface Finish | Fine-machined surface; internal bore finishing available according to flow requirements |
| Mounting Options | Threaded mounting, shoulder positioning, press-fit structure, flange base, or custom equipment interface |
| Working Environment | Molten metal contact, high-temperature flow control, casting, spraying, and thermal processing systems |
| Size Range | Customized according to drawings, samples, or equipment installation requirements |
| Inspection Items | Outer diameter, inner bore, length, concentricity, surface quality, and appearance inspection |
| Customization | Material grade, bore diameter, outlet shape, wall thickness, length, thread, flange, and mounting structure can be customized |
| Material | Main Strength | Limitation | Suitable Use |
|---|---|---|---|
| Boron Nitride Ceramic | Non-wetting surface, thermal shock resistance, clean contact with molten materials | Mechanical strength is lower than some structural ceramics | Molten metal nozzles, casting nozzles, high-temperature flow control parts |
| Alumina Ceramic | Good hardness, insulation, wear resistance, and cost efficiency | Not ideal when non-wetting performance is the main requirement | Insulating nozzles, wear-resistant sleeves, general ceramic components |
| Zirconia Ceramic | High toughness, good mechanical strength, and precision machining stability | Not mainly used for molten metal non-wetting applications | Precision mechanical parts, valve components, pump components |
| Silicon Carbide Ceramic | High hardness, wear resistance, and thermal conductivity | Suitability depends on chemical environment and working conditions | Wear-resistant nozzles, abrasive flow parts, high-load ceramic components |
It is mainly used for molten metal flow control, casting systems, high-temperature spraying, powder delivery, and thermal processing equipment where low adhesion and clean material flow are required.
Alumina ceramic is strong and cost-effective, but BN ceramic is a better choice when the application requires non-wetting contact with molten materials. It helps reduce sticking and material buildup in high-temperature systems.
Yes. BN ceramic nozzles are often used in molten aluminum handling and non-ferrous metal processing. The final material grade should be confirmed according to temperature, atmosphere, molten material type, and expected service life.
Yes. The inner bore, outlet diameter, taper angle, wall thickness, and total length can be customized according to drawings, samples, or flow requirements.
Yes. Threaded structures, stepped bodies, flange bases, and custom mounting interfaces can be machined according to your installation design.
Yes. It can be used in high-temperature spraying and powder delivery systems where thermal stability, smooth flow, and low material adhesion are important.
Please provide a drawing, sample photo, material requirement, working temperature, contact material, quantity, and tolerance or surface finish requirements. If the design is not finalized, you can also contact us first to discuss the application.
Yes. We can help select a suitable BN ceramic material based on the application environment, atmosphere, molten material type, mechanical load, and expected service life.
BN ceramic is easier to machine than many advanced ceramics, but it still needs proper handling and installation. For load-bearing or assembled structures, wall thickness, mounting design, and assembly method should be reviewed carefully.
Yes. Prototype and small-batch production can be supported for testing, equipment validation, and custom thermal process development.
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