Overview of Ceramic Boron Nitride Side Dam for Thin-Strip Casting in Steel Industry

Ceramic Boron Nitride Side Dam for Thin-Strip Casting in Steel Industry ceramics are a class of advanced technical ceramics, often referred to as “white graphite.” They are renowned for their unique combination of properties, including high thermal conductivity, excellent electrical insulation, and outstanding thermal shock resistance. Available in various forms such as hot-pressed solids, coatings, and composites, BN ceramics are critical in demanding applications across aerospace, electronics, and metallurgical industries.

Features of Ceramic Boron Nitride Side Dam for Thin-Strip Casting in Steel Industry

• High Thermal Conductivity: Offers excellent heat dissipation, similar to metals, while maintaining electrical insulation.

• Excellent Thermal Shock Resistance: Withstands extreme and rapid temperature changes without cracking.

• Superior Electrical Insulation: Maintains high resistivity even at elevated temperatures.

• Low Dielectric Constant and Loss: Ideal for high-frequency and microwave applications.

• Good Chemical Inertness: Resists attack from most molten metals, slags, and salts.

• Non-wetting and Non-reactive: With many molten metals like aluminum and copper.

• High Temperature Stability: Can be used in inert or vacuum atmospheres up to 3000°C.

• Machinability: Can be precision-machined into complex shapes using conventional tools, unlike many other advanced ceramics.

Specifications of Ceramic Boron Nitride Side Dam for Thin-Strip Casting in Steel Industry

Ceramic boron Nitride Side Dams are vital for thin-strip casting machines. They control the shape of the liquid steel edge. This ensures the cast strip has the correct width. The material is hot-pressed boron nitride ceramic. This ceramic handles extreme heat well. It doesn’t crack when temperatures change fast. This is thermal shock resistance. It is crucial near molten steel.

The side dam surface resists sticking to molten steel. Steel does not wet the boron nitride. This keeps the side dam clean. It ensures smooth operation over many casting cycles. The ceramic is very hard. It resists wear from the moving steel strip. This extends its usable life.

Standard thickness is usually 30mm to 50mm. Height ranges from 400mm to 600mm. Length is typically 200mm to 300mm. These sizes fit common thin-strip casting machines. Custom sizes are possible. The side dams are made by isostatic pressing. This means pressed under high pressure from all sides. Then they are sintered at high temperature. This creates a dense, strong structure. The density is high. Low porosity is essential. It prevents steel penetration. It improves strength.

The casting face has precision grooves. These grooves hold lubricant. Lubrication reduces friction against the steel shell. It minimizes wear on both the dam and the steel. Good lubrication is key for surface quality. Consistent performance needs stable dimensions. The ceramic maintains its shape under load. This stability is critical for uniform strip width. Operators rely on this reliability. It reduces machine downtime. Maintenance costs stay lower.

Applications of Ceramic Boron Nitride Side Dam for Thin-Strip Casting in Steel Industry

Ceramic boron Nitride side dams are key parts for making thin steel strips. They sit right at the sides of the casting machine mold. Molten steel flows very fast into this mold. It needs strong barriers to stop leaks. Steel mills need these barriers to work perfectly every time. Standard materials often crack or wear out too fast. The heat and chemical attack are extreme. Boron nitride ceramics solve these problems well.

This material handles sudden temperature changes. It doesn’t crack easily when hot steel hits it. Other materials might shatter. Boron nitride is also non-wetting. This means the liquid steel doesn’t stick to it. Clean steel surfaces result. The side dam stays smooth longer. Less sticking means less force needed to pull the steel strip. This helps the casting process stay stable. It also reduces the chance of the strip tearing.

These side dams last much longer than older types. Less downtime happens for changes. Steel plants save money on parts and lost production time. The quality of the steel strip improves too. The edges are cleaner and more consistent. Good edges mean less waste later. Less trimming is needed before the steel goes to customers. The side dams also help control the strip’s shape and thickness near the edges.

Using ceramic boron nitride side dams makes thin-strip casting more reliable. Steel producers get better results. They make more steel with fewer problems. The process runs smoother for longer periods. This technology is vital for modern, efficient steel plants focused on high-quality thin strip.

Company Profile

Tanki New Materials Co.Ltd. focus on the research and development, production and sales of ceramic products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2015, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Aerogel, Aluminum Nitride, Aluminum Oxide, Boron Carbide, Boron Nitride, Ceramic Crucible, Ceramic Fiber, Quartz Product, Refractory Material, Silicon Carbide, Silicon Nitride, ect. please feel free to contact us.

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5 FAQs of Ceramic Boron Nitride Side Dam for Thin-Strip Casting in Steel Industry

Ceramic boron Nitride Side Dams are important for thin-strip casting in steel. Many people ask questions about them.

What are Ceramic Boron Nitride Side Dams?
These are special parts made from ceramic boron nitride. They sit at the edges of the casting mold. Their job is to hold the liquid steel in place while it cools and forms a thin strip. They directly touch the very hot, molten metal.

Why is boron nitride good for this job?
Boron nitride handles extreme heat extremely well. It doesn’t melt or break down easily in the steel mill environment. Crucially, it doesn’t stick to the liquid steel. This prevents damage when removing the solidified strip. It also provides a smooth surface for the steel to form against.

How do they handle temperature changes?
The casting process involves huge temperature shifts. The side dams go from room temperature to molten steel heat very fast. Boron nitride is excellent at resisting thermal shock. It doesn’t crack easily under this stress. This reliability is vital for continuous casting operations.

How long do they last?
Their lifespan depends on the specific casting conditions. Factors include the steel grade, temperature, and casting speed. Generally, boron nitride side dams last much longer than other materials. Their resistance to wear and sticking significantly reduces downtime for replacements. This improves overall production efficiency.

Do they affect steel quality?
Yes, positively. Their smooth, non-reactive surface minimizes defects on the strip edges. They prevent sticking and tearing. This results in cleaner, smoother strip edges. Better edge quality means less trimming waste later. Consistent dam performance ensures consistent strip dimensions.