The ladle shroud nozzle for continuous casting is also called the protective sleeve. It is an important component connecting the ladle and the tundish. It is connected to the lower shroud of the sliding shroud device at the bottom of the ladle, and the lower end extends into the tundish.
The shroud is an important functional refractory material for maintaining casting and improving steel quality. The length of the shroud is generally 600-1800mm, the pipe diameter is 90-150 mm, and the structure of the ladle shroud nozzle is shown in Figure 2. Its use conditions are harsh and must have the following functions: excellent thermal shock resistance; good mechanical strength; excellent resistance to alternating corrosion of molten steel and slag, high oxidation resistance, and in addition, other suitable properties are required for some special steel grades.more information,please check here

Tundish nozzle
Slide Gate Plate is a critical component in the continuous casting process, used to control the flow of molten steel from the ladle or tundish to the crystallizer. The following is a detailed description:

Role and Function

·        Flow Control: The sliding gate plate adjusts the opening size of the nozzle through the sliding mechanism, thereby controlling the flow of molten steel. This is very important for maintaining a constant and controllable casting process.
·        Operational Flexibility: The sliding gate plate allows operators to adjust the molten steel flow rate as needed during the casting process to adapt to different production requirements and conditions.
·        Emergency Stop: In an emergency, the sliding gate plate can completely close the flow channel and stop the flow of molten steel, thereby preventing accidents and losses.
 
Slide gate plate for Converter
The slide gate plate is made of sintered corundum, fused corundum, fused zirconium corundum, zirconium mullite and other main raw materials. It is combined with new resin, formed by high pressure and fired at high temperature. It has the advantages of high strength, super hard, high temperature resistance and corrosion resistance, and strong thermal stability.
Stopper

Monoblock Stopper is used mainly for flow control on Molten Steel poured from tundish to mould. Monolithic Stopper is installed in the Tundish above the Sub Entry Nozzle and the gap between stopper head and Nozzle decide the throughput requirement of Molten Steel inside the Mould.
Argon can be blown into the tundish through argon inlet to prevent nozzle from Clogging ( specially designed feature wherever it is required we design and customise accordingly)
SPECIAL FEATURES:
o Facility for gas purging
o Anti oxidant properties
o Design and size as per customer’s requirement
o Clogging free casting for long sequence of casting
o Gas purging facilities to prevent alumina clogging (optional)
o Slag zone immersed part re-inforcement with special material for long life
o Argon sealing purging arrangement can be provided on customer’s request
o Wide range of formulation for withstanding oxidation and long sequence casting
o Different assembly methods for assured security even in long sequence casting
o We manufacture Silica free Oxy-bore ladle shroud for less corrosion and long sequence casting

Recycling slide gate plates to save costs and reduce waste

 
The top 5 ladle shroud manufacturers in China
Production and application of isostatically pressed refractory materials
 
SEN
首页
重定向声明
adam wang | Archinect
Monoblock Stopper is used mainly for flow control on Molten Steel poured from tundish to mould. Monolithic Stopper is installed in the Tundish above the Sub Entry Nozzle and the gap between stopper head and Nozzle decide the throughput requirement of Molten Steel inside the Mould.
Argon can be blown into the tundish through argon inlet to prevent nozzle from Clogging ( specially designed feature wherever it is required we design and customise accordingly)
https://www.futmetal.com/ 这个网址做了很多别的网页链接
JS Bin - Collaborative JavaScript Debugging
sequence casting
o Different assembly methods for assured security even in long sequence casting
o We manufacture Silica free Oxy-bore ladle shroud for less corrosion and long sequence casting
[URL="https://hyrefr.com/product/ladle-shroud/"]here[/URL].
IntenseDebate - junhuamachinery
5 Key Factors Behind Ladle Shroud Cracking | SMP Maria Mediatrix
The top 5 ladle shroud manufacturers in China · hyrefractory/slide-gate-plate Wiki
HYRE   
ladle shroud
tundish stopper
Sub entry nozzle
[url]https://hyrefr.com/[/url]
Monday, September 8th | ladle shroud
Members - My Study Series Learning Platform
Personal Snapshot - Health and Fitness
Kecamatan Pangururan Kab. Samosir
Tips You Should Know Before Buying a Concrete Batching Plant

Tips You Should Know Before Buying a Concrete Batching Plant
adam | Rossoneri Blog - AC Milan News
https://heylink.me/sinomin.wang/
m Wang | Profile
adam - Peacepink3
sinomin_wangさん（その他）のタレントプロフィール | JOB HUB
adam wang's Profile Page
sinomin.wang Official Homepage

adam wang - 个人简介 |视觉与眼科研究协会

[URL="https://hyrefr.com/product/high-performance-burned-slide-gate-plate/"]SLIDEDATEPLATE[/URL]
Find A Spring - Members
adam — Kickstarter
Where To Find Ready Mix Concrete Plants For Sale
m Wang's TED Profile

adam wang | World Now!

5 Key Factors Behind Ladle Shroud Cracking
adamwang – Ilm Institute
https://www.TwosApp.com/68b97ff4b7d03111c39feb91
https://dictanote.co/n/1318396/
https://www.TwosApp.com/@sinomin.wang%40gmail.com
adam112211のブログ - 楽天ブログ
wangadam - رواق
学园偶像朋友 - hyrefractory: 简介
简介 - adamwang 这个网站10天后可以申请博客
Uživatel sinomin.wang | SerialZone.cz

5 Key Factors Behind Ladle Shroud Cracking

Operators often see cracks and damage in ladle shrouds, long nozzles, and refractory parts. This happens because of a few main reasons:
·        Fast temperature changes can cause thermal shock and peeling.
·        Mechanical stress comes from handling, hitting, or working forces.
·        Hot slag and molten steel can wear down and get into the parts.
·        Material problems like tiny holes or mistakes made during making.
·        Issues with design, how things line up, or how they fit together.
Knowing these reasons helps teams stop corrosion, breaks across the part, and chemical damage. This helps ladle shrouds last longer.

Key Takeaways

·        Quick temperature changes can cause thermal shock. This can crack ladle shrouds. Heating slowly and checking the temperature can stop this damage.
·        Mechanical stress from moving and using parts can cause cracks. Storing parts carefully and handling them right helps lower this risk. Installing them the correct way also helps.
·        Hot slag can wear down and get into refractory materials. This makes them weaker. Using strong materials and checking slag conditions can protect the parts.
·        The quality of materials is important. Good raw materials and careful making of parts help stop cracks. Having the right amount of porosity makes parts stronger and better at handling shock.
·        Good design and alignment lower stress and stop leaks. Smooth shapes and tight fits help keep ladle shrouds and nozzles strong. Checking them often also helps.

1. Thermal Shock

Temperature Changes

When the temperature changes quickly, it puts stress inside refractory materials. During ladle preheating, the working layer gets hot on one side and stays cool on the other. This big difference in temperature causes strong pulling stress at the top of the working layer. Sometimes, this stress can get as high as 39.06 MPa. Damage often starts at the top and near the sidewall burner nozzles. If the ladle heats up too fast, alumina-magnesia castables get stiffer but weaker. The material turns more brittle and can break more easily. When steel is poured, the ladle shroud faces sudden heat, which also builds up stress.
Tip: Teams should watch temperature changes during preheating and pouring. Using thermal imaging cameras can help find hot spots and uneven heating. These signs show where cracks might happen.

Crack Formation

Thermal shock cracks show up a lot in high-temperature furnace linings and steel ladles. These parts go through fast heating and cooling many times. When the temperature changes too quickly, the refractory grows or shrinks more than it can handle. If the material is brittle, especially under 1100°C, cracks form easily. Big parts, uneven heating, and outside forces make cracking worse. Changes in the material’s structure can also raise the risk.isostatical pressed refractory
·        Common scenarios for thermal shock cracking:
1.      Ladle preheating with fast temperature rise.
2.      Steel pouring with sudden molten metal exposure.
3.      Quenching or cooling steps in steelmaking.
4.      High-temperature furnace linings in steel, cement, glass, and ceramics.
Thermal shock can cause early failure with small and large cracks. Operators often see pieces breaking off, falling apart, and cracks along the ladle shroud and nozzle. Checking often and tracking temperature changes helps teams stop damage before it gets worse. Using materials that handle thermal shock better and heating slowly can help lower the chance of cracks. Slide gate plate

2. Mechanical Stress

Handling Damage

Mechanical stress often starts when workers do not handle parts carefully. Sometimes, workers drop or hit the ladle shroud by mistake. This can chip, crack, or even break it before use. Teams may forget how important good storage is. If the storage area is wet or rough, the refractory gets weaker. This makes it easier to crack later.
Operators should do these things to stop handling damage:
·        Keep ladle shrouds in dry, clean places.
·        Teach workers to lift and move parts the right way.
·        Check each part for chips or cracks before using it.
·        Heat the ladle shroud slowly so it does not crack.
Tip: Handle parts with care and heat them slowly. This helps stop early cracks and makes the ladle shroud last longer.

Operational Impact

Mechanical stress keeps happening when the equipment is used. Taking off coatings or moving the ladle shroud can hurt the refractory. Forces between the upper nozzle and ladle bottom can cause stress. These forces come from heat changes, steel shell growth, and heavy loads.
These types of mechanical stress often cause cracks or bending:
·        Pulling forces from blocked thermal expansion.
·        Pushing forces that make the part bend for good.
·        The steel shell grows wider and faces thermal shock.
The table below shows how these forces can hurt the structure: Operators who know about these stresses can pick better materials. They can also install parts better and lower the chance of cracks. Checking often and lining up parts right helps keep steelmaking equipment strong.
Ladle Shroud Gasket – Material, Function, Shape & Installation Guide
How to Use the Ladle Shroud Manipulator in Continuous Casting Operations
Refractory shapes and sizes
 
Operation procedure of dry material for induction furnace
Drawing design method and skill of ladle slide gate plate
slide gate plate test report In AK Middletown 225-ton ladle
Recycling slide gate plates to save costs and reduce waste
The top 5 ladle shroud manufacturers in China
The Role of Slide Gate Plates in Steel Industry Efficiency: Exploring the Mechanisms of LS, CS, and LG Series for Optimal Performance

The difference between magnesia carbon brick and aluminum magnesia carbon brick
Production and application of isostatically pressed refractory materials
New generation ladle slide gate system for performance improvement
Thermal Stress Cracking Of Ladle Slide Gate Plate
The-damage-reasons-to-ladle-sliding-plates-and-the-advantages-and-disadvantages-of-some-slide-gate-plates
The Unseen Champion Of Continuous Steel Casting-Slide Gate
5 Key Factors Behind Ladle Shroud Cracking
How To Extend The Service Life Of Slide Gate Plates In Steel Casting - Henan Yangyu Refractories Co.,Ltd
How To Choose Ladle Shroud From A China Factory
A Few Things You Should Know About The Ladle Nozzle
Wear Reason About The Slide Gate Plate
Before Enquiry Some Questions You Should Know About Ladle Shroud - Henan Yangyu Refractories Co.,Ltd
The Iso Refractory Trial Report Compared With Vesuvius
The drawing regarding kinds of slide gate plate
Slide Gate Plate Price Guide 2025: Complete Pricing Analysis and Buying Tips
Complete Guide to Submerged Entry Nozzle (SEN) in Steel Making
What Is A Ladle Shroud And Its Function - Henan Yangyu Refractories Co.,Ltd
How To Improve The Lifespan Of Slide Gate Plates
The Reason Of Sub Entry Nozzle Clogging And How To Slove It
Why The Tundish Stopper Cracks And How To Improve It
How To Avoid The Sub Entry Nozzle(SEN) Clogging
The Problem In The Application Of Monoblock Stopper Rods


亚当·王's Profile Page
adam wang's Σελίδα Προφίλ
hyrefractory – Mining Doc
wang adam: Блог | Mentor
耐液材料 |硬件、软件、移动电脑配件的IT论坛
sales manager – Chiropractic Jobs
adam wang's Profile Page
My account - LQDOJ: Le Quy Don Online Judge
Blog - OSISATECH eLEARNING
wang adam's Trang cá nhân
BBINY
https://childcancer-fundraising.org.nz/adam-wang
How to find a good ladle shroud supplier from China - HedgeDoc

https://youtu.be/EmNn8E3hRdo
https://youtu.be/AJ3Dt9R2Rh8
https://youtu.be/ctppROYzPuc
(1) Facebook