Key Performance Features of Silicon Carbide Nozzle
- Excellent wear resistance, extremely high hardness, second only to diamond
- High temperature resistance, the highest working temperature can reach 1620℃
- Precise flame control. Flame shape, and direction can be controlled through different designs
- High thermal conductivity up to 163 W/m・K
- Very low porosity <0.1%
- Easy to process into various shapes
Silicon Carbide Nozzle for Various Processing
Newthink has extensive experience in manufacturing silicon carbide ceramic nozzles to meet the needs of various industrial applications.
Extremely low porosity <0.1%. Used in kerosene-heated furnaces with a maximum temperature of 1380℃.
Withstand extremely high temperatures (stable performance at 1600℃) and can resist the erosion of chemical substances.
It can provide small thermal expansion coefficient with excellent high-temperature strength and thermal shock resistance.
High hardness, usually reaching Mohs hardness level 9, which can improve work efficiency and reduce costs.
Why Choose Newthink Silicon Carbide Nozzle?
Choosing Newthink means choosing high-quality product and service. Newthink always consider from the customer’s perspective and fully meet your needs.
Newthink can meet the needs of large-volume orders and ensure timely and stable delivery.
For urgent orders from customers, Newthink can deliver within 10-15 days.
For each product, before packaging, Newthink will conduct strict inspection and measure tolerance and other data according to the drawings.
With ISO certification, Newthink strictly control every step to ensure stable and reliable product quality.
Newthink have over 14 years of expertise in nozzle design and manufacturing.
Each nozzle will be separated by 3-5mm thick foam to ensure the safety during transportation. Nozzle will be fixed with nails after packaging, finally fixed with packing tape.
Silicon Carbide Nozzle Production Workshop
Newthink has 14 years of experience in advanced ceramic production. Our workshop is well organized, with mold area, raw material mixing area, molding area, blank repair area, drying area, carving area, sintering area, quality inspection area, and packaging area. Clear divisions improve production efficiency, ensure timely delivery, and ensure product quality stability. From SiC powder preparation to finished SiC product manufacturing, clear divisions improve production efficiency, ensure timely delivery, and guarantee product quality stability.
Popular Customized Sizes & Types of Silicon Carbide Nozzles
- Available Types
Ordinary burner nozzle
Open hole flame nozzle
Slotted flame nozzle
Closed end flame nozzle - Common Sizes
Height: 300-500 mm
Thickness: 4-7 mm
Diameter: 50-100 mm
Resource
Download detailed product specifications, technical data and more. Access all the information you need.
Meet Us at Exhibitions and Factory Visits
Newthink actively participates in major industrial and advanced ceramics exhibitions worldwide throughout the year, such as Italy, Germany, Japan, and Vietnam, meeting directly with our customers.
Newthink warmly welcome you to visit our factory, check our production processes, witness our control of quality and discuss our future cooperation. Newthink have earned deep trust from clients in over 40 countries and regions.
Parameters for Different Types of Silicon Carbide Nozzle
Silicon carbide nozzles have a variety of processes, and their main performances are as follows:
- Parameter Table
Item | Unit | Data | ||
| RBSiC(SiSiC) | NBSiC | RSiC | ||
| Max service temperature | ℃ | 1380 | 1450 | 1620 |
| Density | g/cm3 | 3.02 | 2.75-2.85 | 2.65-2.75 |
| Open porosity | % | 0 | 13-15 | 15-18 |
| Bending strength 20℃ | Mpa | 250 | 160 | 100 |
| Bending strength 1200℃ | Mpa | 280 | 180 | 120 |
| Modulus of elasticity 20℃ | Gpa | 330 | 580 | 240 |
| Modulus of elasticity 1200℃ | Gpa | 300 | / | 200 |
| Thermal conductivity 1200℃ | W/m.k | 45 | 19.6 | 36.6 |
| Coefficient of thermal expansion | K-1x10-6 | 4.5 | 4.7 | 4.69 |
| HV | kg/mm2 | 2115 | / | / |
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The burner nozzle is one of the main parts of the burner. It comes in a variety of shapes and may be achieved with accurate fuel flow adjustment by a unique design to meet various industrial requirements. High temperature resistance, corrosion resistance, and abrasion resistance are important characteristics. The common materials are stainless steel, nickel-based alloy, aluminum oxide, silicon carbide (SiC), etc. Among them, silicon carbide nozzles are specially noted for their unique merits.
The fuel burner nozzle will wear out. The principal reasons are as follows:
①Scouring by impurities: The fuel may contain solid impurities of small particle size. Impurities will flow at high speed through the nozzle and wear out the inner surface.
②Chemical corrosion: Some of the fuel elements may produce corrosive gases when combusted. The corrosive gases will attack the nozzle at high temperatures.
③High combustion temperature: During fuel combustion, the temperature will be very high, and the nozzle material should have good properties, otherwise it is very easy to wear at high temperatures.
① Different materials. Silicon carbide nozzles are made of silicon carbide, which is very hard, only second to diamond, while tungsten carbide nozzles are pressed and sintered by tungsten-cobalt alloy, and have good wear resistance and corrosion resistance.
② Different weights. Tungsten carbide nozzles are heavier and denser than silicon carbide nozzles.
③ Different wear resistances. Silicon carbide nozzles are more difficult to wear and have a longer lifespan compared to tungsten carbide nozzles.
④ Different prices. Generally speaking, silicon carbide nozzles are cheaper than tungsten carbide nozzles.
A variety of nozzles is employed in various sandblasting conditions and needs. Silicon carbide nozzles should be selected for high-speed sand blasting. Tungsten carbide sandblasting nozzles should be selected when impact force or irregular impact of sand particles occurs often in sandblasting.
Super wear resistance. Silicon carbide nozzle is exceptionally hard, which assures a longer life than any other material.
Excellent corrosion resistance. SiC nozzles have resistance to most of corrosive chemicals, including strong acids and bases.
High temperature resistance. Silicon carbide can endure continuous working temperatures up to 1600 ℃. It is very effective at cooling heat and withstands temperature changes under pressure without cracking.
Strong mechanical properties. Silicon carbide nozzles are strong enough to withstand high-pressure applications, such as firefighting.
Harder or more abrasive particles can accelerate wear. When elevated in temperature, some molten metals or compounds will interact with silicon carbide, resulting in the degradation of the nozzle properties. Continuous and extreme cycling during temperature changes can result in cracking over a long period of service.
Another factor is pressure. Higher pressures result in higher wear rates because of the rapid impact. Operating a nozzle continuously is less harmful, as the start and stop will put more stress on the nozzle.
