Steelmaking Purging Plugs Systems for Stiring Steel Molten in Ladle

Product Description

Steelmaking Purging Plugs Systems for stiring steel molten in ladle

Product Description

In steel-making today, gas blowing in a ladle is indispensable for improvement of steel quality and for continuous casting.

SNREF purging plug is characterized by their high strength, good erosion resistance and corrosion resistance, high blowing rate and good safety. They are widely used for continuous casting ladles and refining ladles.

Hot Sales Types

-Slot Plug(slit plug)
Slot plug is the most common structure in purging plug.
The gas channel could be designed and customized according to actual on-site using conditions, including refining steel grade,
refining workmanship, ladle capacity, temperature, hydrostatic pressure of liquid steel etc.
This can achieve the best blowing effect for purging plugs, ensure the longest service life, safety, stability and best air
permeability.

-Porous plug
Porous plug has better porosity and permeability.
Production technology is adding carbon-containing compound into mixture, since carbon-containing compound can burn out without
residue at low temperature, so we adopt low temperature burning out intermediate materials to get the initial porosity.
In porous type plug, inside distributes interpenetrating gas channels in different sizes.
When blowing stop, the steel and slag from ladle will infiltrate into the deep areas of the plug, to form a secure layer on working surface.

-Segment Plug
The segment plug is preferably made of good anti-stripping materials, the block body is not easy to occur fracture, with longer  service life. The cracks between different plates will not expand, so this segment plug design can avoid failure of bottom blowing  caused by tranverse brick fracture.

Application characteristics: In order to adapt to more and more strict refining conditions(especially special steel), and to meet the requirements of increasing  ladle life, the volume of plug becomes bigger and bigger. However the traditional slit type plug has single material and single  structure, easy to cause the phenomenon of tranverse fracture and failure of air blowing. Our researched segment plug has successfully soved the problem of fracture existing in traditional slit plug. Significantly increasing  the stability of refining process, ensuring the realization and improvement of quality refined steel.

-Hybrid Plug
Secondary refining technology is the most important part in steelmaking process
It can adjust the steel alloy type and liquid temperature.
Purging plug and block is the key functional component to make this process carried out.

As the ladle tends to develop in larger scale, the melting temperature and time have been improved significantly, which makes the
using environment for refractory materials more and more strict. Therefore, it is necessary to further improve the performance of
purging plugs and blocks to meet the increasing demands in current steelmaking technology

-Overall breathable brick:
This product adopts high purity raw materials, through vibration casting and low temperature heating process workmanship.
Function is blowing argon gas via purge plug to ladle.
With the feature of high strength, good thermal stability, erosion resistance and abrasion resistance.
Widely used in steel plants LF, LF-VD, CAS-OB refining ladle

We manufacture various high-quality ladle refractory according to the clients' needs , and to ensure the stability and accountability of the quality.

Product Parameters

Technical data will be customized according to your steel making condition.

Chemical and Physical Properties	SNLWB-85	SNLWB-90	SNLWB-95
Al2O3 +MgO    %          min	85	90	95
Cr2O3 (C)   %             min	0	2.5	2.5
Apparent porosity g/cm3%   max	15	13	13
Bulk density  g/cm3   %     min	3.0	3.05	2.9
Normal temperature Compressive strength (MPa)            min	80	100	100
Breaking strength   1500°C×3hmin	23Mpa

 
2.Well block and segment plug

Chemical and Physical Properties		(Housing seating well block)	(purging plug)
AL2O3 %		>=85	>=85
MgO%		3-5	1-3
Cr2O3 %		-----	>2.4
Bulk density  g\cm3		>=3.0	>=2.9
Apparent Porosity  %		<=16	<=18
Cold crushing strength  Mpa	110ºC*24h	>=60.0	>=80.0
	1500ºC*3h	>=100.0	>=80.0
Refractoriness under load : ºC		>=1680	>=1680
Modulus of rupture 1400ºC *1h Mpa  Mpa		>=15.0	>=15.0
Linear change 1500ºC*3h %		±0.2	±0.2
air permeability, m3/hour at P=4 bar		30M3/H

Packaging & Shipping

Product packaging
1- International standard seaworthy exportable packing.
2- Wooden pallet.
3- Wooden / bamboo case (box).
4- Further packing information will be based on customer's requirements.

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.

Started in year 2007, sinorefractory is the second generation of refractories export enterprise developed
from Emei group, supported by one of China's largest production bases in functional refractory materials.
Through years of development in the field of functional refractory materials, sinorefractory aims at
researching, marketing and exporting premium quality slide plates, nozzles, well blocks, purge plugs,
nozzle filling sand, refractory castables, slide gate mechanism, tundish refractories to global markets.

In 2021, Sinorefractory was spun off from Emei group.

In 2022, in order to expand into broader product areas and commit to becoming a high-end refractory
materials supplier, Sinorefractory became an affiliated enterprise of Sinosteel Luoyang Institute of Refractory
Research. Following the establishment of this strategic collaboration, sinorefractory has achieved significant
advancements in new product area development, technical support and market expansion.
 

Our Advantages

Our Advantages of SNREF Ladle Gas Purging System Purge Plug Set Block for Steel Melt Refining

Wear resistant materials to cope with high local turbulence and with consistent dimensional control to fit the purge plug.
Purge Plugs:
 * Uni or omnidirectional, porous or with slots, several designs
 * Large material portfolio to select with our specialists

Plug and Block Assemblies (PBA) reduce your installation challenge and risk.

FAQ

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.