Tundish Dry Vibrator FAQ: Specifications, Ordering and Support Questions

The tundish dry vibrator (also called tundish dry vibration material) is a refractory lining material used in continuous casting tundishes. Buyers in steel-making and foundry procurement frequently ask about its grades, installation steps, baking requirements, and performance benchmarks. The questions and answers below are drawn directly from documented product information provided by Xingtai Luxi Environmental Protection Technology Co., Ltd.

What is a tundish dry vibrator and what are its main characteristics?

A tundish dry vibrator is a dry vibratable refractory material applied between the permanent lining and the metal tire membrane of a continuous casting tundish. Its key characteristics are:

• Non-toxic formulation — safe for personnel and workplace environment.
• Simple construction and high efficiency — reduces labor intensity.
• Long continuous casting time — documented average service life exceeds 35 hours, with erosion resistance and easy decoating (flipping).
• Short baking time and good explosion-proof performance — achieves high thermal efficiency and energy saving.
• Low tundish slagging rate — helps purify molten steel and improve the quality of the continuous casting billet.

What grades of tundish dry vibration material are available, and what are their chemical and physical properties?

Two standard grades are:

Custom formulations or specifications are available on request per the product documentation.

What are the construction steps for installing tundish dry vibration material?

The five-step installation procedure is:

1. Place the metal tire membrane inside the tundish, leaving a working gap of 5–12 cm between the permanent lining and the membrane.
2. Fill the void by manually flowing dry vibrating material into the gap; vibrate the tire membrane to compact the material to a uniform density.
3. Heat with a heater at 250 °C–400 °C inside the membrane for 1–2 hours.
4. Allow to cool, then lift and remove the pack tire.
5. Bag baking: first bake on medium-low heat for 1 hour, then bake on high heat until red — after which steel can be poured.

Are there any important safety or operational notes to follow?

Yes. Two critical notes are specified in the product documentation:

1. After the tundish is baked red, the cladding wall must not be cooled. Cooling at this stage causes a loose cladding structure that negatively affects performance.
2. In the first heat of pouring, raise the molten steel temperature appropriately to avoid junction (bridging) accidents.

Following these notes is essential to achieving the service life and quality of the continuous casting billet.

What service life can be expected, and has the product been used in commercial steel mills?

According to product documentation from Xingtai Luxi Environmental Protection Technology Co., Ltd., the dry vibrating material has been used in multiple steel mills across China. The current average service life is more than 35 hours, stated as reaching the domestic advanced level, and the product has received positive feedback from users at those mills.

Can specifications be customized, and how can I get more information?

Yes — the product data notes that specifications can be provided as requested, indicating that custom chemical compositions or physical parameters can be discussed. For specific grade requirements, order quantities, or after-sales support, contact Xingtai Luxi Environmental Protection Technology Co., Ltd. directly.