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Zirconia Inserts

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We manufacture a very wide range of ZrO2 Metering Nozzle. ZrO2 Metering Nozzle are basically used for controlling the flow of steel from the Tundish to the Continuous Casting equipment. Different kind of ZrO2 Metering Nozzles include, Alumina, Alumina Carbon, Zirconia Alumina Nozzles, which are manufactured for single to multiple casting application. Alumina Carbon ZrO2 Metering Nozzles are made with Isostatic Pressing Process. which gives better performance compared to other nozzles. Zirconia Nozzles are manufactured using 65% to 95% Zirconia. it can be used where application demands Timing time upto 40hrs for Single to Multiple Casting.

ZrO2 Metering Nozzle is an important component of continuous casting. Through the ZrO2 Metering Nozzle, the molten steel flows from the tundish into the crystallizer. During this process, the outlet aperture will be eroded and widened, the amount of molten steel per unit of time increases and the surface of molten steel in the crystallizer rises, which requires increasing casting speed to digest the excess molten steel. With the further erode and widen of outlet aperture, adjusting casting speed can not digest all the excess molten steel, then releasing the excess molten steel through the mouth of the emergency is adopted though it's a waste of steel enterprises. Therefore, whether the outlet aperture of ZrO2 Metering Nozzle remains constant is a most important measure of the quality. Usually, it is measured through the total use time in actual production.
Our ZrO2 Metering Nozzle has the properties of high refractoriness, good resistance to erosion, and can bear rushing scour etc.

structural principle

The ZrO2 Metering Nozzle is a combination of inner core and exterior. The inner core is made of stabilized zirconia and zircon sand, producing through molding machines and high-temperature calcination. The exterior is made of zirconium and corundum, producing through molding machines and low-temperature baking. ZrO2 Metering Nozzle is located at the bottom of the tundish, it's the channel of liquid steel to flow from the tundish into the crystallizer.



ZrO2 Metering Nozzle Features:
Long casting sequence time
Controlled casting speed
Excellent resistance to oxidation
Prevent clogging to improve productivity
Special compositions of nozzles as per use in the industry
Higher life of nozzles



Applications of the ZrO2 Metering Nozzle:

Mainly used in powder metallurgy, ferrous and non-ferrous powder smelts, such as copper powder, nickel based alloy powder, stainless steel powder, iron powder and other super alloy powder, etc.
According to the different requirement of different clients for the qualities, we take the different stabilizers and grains combination, our atomizing nozzles have higher density, excellent high temperature erosion, crushing of metal liquids, and thermal shock stability.
We can produce various shapes and sizes atomizing nozzle, and individually according to clients' demand.

Production Equipment

Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.

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Packing Details
Packing details:

★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.

★Wooden pallet size: usually 92*92cm (standard brick)

★Castable: Ton bag with rain film and 25kg bags inside

★Or according to customer’s requirements


★Port of dispatch: Tianjin port; Qingdao port

★Delivery time: According to customer’s demand or two sides negotiate

Our Services

We provide you 

★Timely response: Timely response to your inquiry within 24 hours and provide solution. 

★Competitive Price: Make the products competitive in your market. 

★Free sample: Free sample are offered, trial order are accepted for quality evaluation. 

★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.

★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment. 

★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.

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Certification:  (ISO 9001:2015)



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