Premium Swirling Tundish Nozzle Refractory for Pakistan Steel Production

• Customization: Available
• Material: Alumina Zirconia Carbon
• Refractoriness (℃): 1580< Refractoriness< 1770
• Model NO.: Anti-swirling
• Shape: Block
• Usage: Steel Smelting
• Zirconium Content: for Zirconia Insert More Than 95%
• Products Name: Swirling Tundish Nozzle Refractory for Continuous
• Zirconia Plate: Customzied
• Application 1: Steel Making
• Application 2: Tundish Continuous Casting
• Zirconia Products: Zirconia Ring, Plate, Insert etc
• Zirconia Ring, Plate: Be Assembled to Ladle Sliding Gate Plate
• Function: Flow Control The Steel Molten
• Customizable Shapes and Services: Available
• Cnm/Mnc Tundish Nozzle: Available
• Workmanship: Pressing or Casting
• Upper Nozzle(Stationary Nozzle): Fixed Tundish Nozzle
• Lower Nozzle: Exchangable Tundish Nozzle
• Tundish Well Block: Supplied
• Advantage: Thermal Shock Resistance
• CNC System: Quick Changer CNC System
• Transport Package: Fumigation Free Wooden Cases
• Specification: Zirconia insert content more than 95%
• Trademark: SNREF/SINOREFRACTORY
• Origin: China
• HS Code: 69032000
• Production Capacity: 30 000 Tons/Year

Product Description

Premium Swirling Tundish Nozzle Refractory for Pakistan Steel Production

Product Description

Shandong Sinorefractory New Materials Co.,Ltd manufactures a comprehensive range of high performance Zirconia Tundish Metering Nozzles, used mainly in the continuous casting of steel billets.

Tundish Nozzles usually comprise a zirconia inner nozzle (often referred to as a "zirconia insert") with a lower grade outer body such as Alumina Bauxite, often be called Outer Alumina Carbon material.

TUNDISH NOZZLE used for the continuous casting of steel. 
SNREF Products used in Tundish can be offered to you as follow:
Tundish metering nozzle
Non swirling tundish nozzle
Tundish upper nozzle
Tundish lower nozzle
Tundish slide plate
Quick-exchange tundish nozzle
Ladle shroud
Subentry nozzle/ submerged entry nozzle
Monoblock stopper
Key Functional Components of Tundish in Steel Plants

I. Anti-Swirl Nozzle (ASN), Non swirling tundish nozzle 

1. Core Functions & Technical Principles

- Vortex Elimination:

- Spiral flow channels convert tangential flow to axial flow, reducing turbulence intensity by 40-60%.

- Slag entrapment prevention (Al2O3 inclusion capture rate ↑15-20%).

- Key Parameters:

- Channel angle: 25-35° (adjustable by steel grade)

- Casting speed: 1.2-2.8 m/min (slab casting)

 

II. Fixed Bore Nozzle (FBN) -Metering tundish nozzle

1. Features & Selection Criteria

- Precision Flow Control:

- Fixed bore (φ10-50mm) ensures consistent throughput.

- Applications:

- Billet casting (φ10-20mm)

- High-carbon steel (requires Ar shielding)

 

III. CNC Slide Gate System

1. System Architecture

- Key Components:

- Upper/lower plates (Al2O3-C-ZrB2, hardness >90 HRA)

- Hydraulic actuator (response time <0.1s)

- Position sensor (0.01mm resolution)
This product is suitable for continuous cast tundish open cast steel.
The zirconium insert is made of high-purity zirconia, which is formed by high-pressure molding and sintering at high temperature.
The outer is made of corundum and high-quality aluminum vanadium.
It is formed by high pressure molding and baked at low temperature.
The two are bonded with corundum mud, and the product's corrosion resistance and thermal shock stability have reached the domestic advanced level, which can fully meet the needs of various billet continuous casting.

Detailed Photos

Zirconia insert plate ring products for tundish nozzle and ladle slide gate plates: 

Product Parameters

1. Tundish Nozzle

Chemical and Physical Properties	SNR- AlC75	SNR- AlC80	SNR- Al75	SNR- Zr96	SNR- Zr65
Al2O3    ≥ %	75	80	94	-85	-
ZrO2    ≥     %	-	-	-	(Insert)  92-96	65
C    ≥   %	4	4	-	-	-
Apparent porosity  ≤	8	7	15	9	20
Bulk density  g/cm3   ≥	2.90	2.95	2.95	3.05	3.5
Compressive strength (MPa) ≥	60	60	120	80	-
High temperature bending strength (MPa) (1400*0.5h) MPa ; ≥	6	7	15	20	-

2. Zirconia insert

Chemical and Physical Properties	SNR-Zr60	SNR-Zr70	SNR-Zr80	SNR-Zr85	SNR-Zr95
ZrO2    ≥     %	60	70	80	90	95
Apparent porosity  ≤	21	20	18	15	6
Bulk density  g/cm3   ≥	3.70	3.90	4.0	4.35	5.2
Refractories  ≥  C	1800	1800	1850	1900	1900

Application

Tundish upper nozzle It is located within the tundish lining and conveys steel to the controlling exchangeable nozzle, which determines the steel flow. The stationary nozzle must be capable of withstanding long sequence times.
SNREF Upper nozzle that incorporates a ultra-high insert. The insert provides excellent erosion resistance and can provide extended casting sequence times.
The lower surface of the stationary nozzle is ground to exacting tolerances to ensure maximum surface contact between the two nozzle components.
Tundish lower nozzle It is located within an assembly that is fixed to the bottom of the tundish.
The design of the exchangeable nozzle can vary according to the system manufacturer.
We supplying a range of zirconia inserts and composite nozzle designs for the exchangeable metering of steel.
Zirconia inserts can be supplied for on-site assembly into metallic holding blocks where cementing, grinding, size banding and on site drying are required prior to use.
It was manufactured by both cast process of fine grained alumina method or presse process. 

Company Profile

Shandong Sinorefractory New Materials Co.,Ltd (SinoRefractory)has been focusing on international marketing of flow control refractories in iron and steel industry for 18 years.

SinoRefractory is the second generation of refractories export enterprise developed out of EMEI Group.Supported by one of China's largest production bases in functional refractory materials.

Through years of development in the field of exporting top quality refractories to worldwide markets,SinoRefractory aims at researching,producing,marketing and exporting high standard Ladle slide gate plate,Ladle Nozzles,Well blocks,Purging plugs,Nozzle stuffing sand,Refractory castables, Slide gate Mechanisms etc.

Up to now,SinoRefractory has supplied high quality refractory products and services to nearly 70 top-hundred global steel enterprises.

In order to expand into broader product areas and position itself as a leading supplier of high-end refractory materials, SinoRefractory became an affiliated enterprise of Sinosteel Luoyang Institute of Refractory Research. Following the establishment of this strategic partnership, SinoRefractory has made significant progress in new product development, technical support, and market expansion.

SinoRefractory will always put clients'interest in the first place,striving to provide a wide range of services,including technical solution,pre-sales support,after-sales services,installation team support,professional know-how according to the changing of steelmaking condition,etc.

We are not only selling products,we are more focused on supporting,developing and growing together with clients.

SinoRefractory is committed to become the leading company on exporting premium quality Made in China functional refractories to global markets. Establishing "SNREF" as the definitive brand in steelmaking flow control refractory materials.

Packaging & Shipping

FAQ

Below are some FAQ and answers about ladle and tundish flow control refractories:

Q 1:How can I receive best materials or products for my application ?
A: Please send drawing and steelmaking condition to us for evaluation.
Our technical team will recommend suitable formula and workmanship,
our sales team will offer most competitive prices accordingly.
Our "Technical+Sales" team will work on to provide optimum product recommendation for clients.

Q 2:Is the recommended life time guaranteed by SNREF ? 
A: Taking into comprehensive consideration base on steelmaking situation and SNREF's product experience, we'll
offer recommended life time of products.
However SNREF doesn't guarantee the life time.
For first time cooperation, SNREF recommends a trial order for testing.
Trial order offers us chance to adjust formula base on actual performance.

SNREF will offer best technical support and expedited delivery for trial order.

Q 3:Can SNREF's refractories work well for my system from other brands?
A: With years of experience in exporting. SNREF has successfully provided refractory materials to a wide range of overseas markets including Asia, North Amercia, South America, Middle East, CIS area etc.
We are experienced with various types of systems.
SNREF is capable to offer consistent and high performance refractory materials to clients worldwide.
 

For more details, feel free to send inquiry to us.