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Nozzle filler
Nozzle filler is a mixture of refractory raw materials and it is used in the nozzle of ladle in Continuous Casting of steel.
The main goal is to achieve a higher level of free opening performance, close to 100%, guaranteeing the
steel process flow, from ladle to Tundish continuously, avoiding the nozzle clogging. This can generate personal
accident and lack of productivity.
Nozzle fille is necessary material in steel production.
Stuffing sand is firstly put into the ladle before molten steel is poured.
When the slide plate located at the nozzle is withdrawn, the stuffing sand will flow out with the flowing molten steel and natural casting is realized.
Practice shows that if ladle casting cannot be realized naturally but depends on oxygen consuming, continuous casting heats and production efficiency will be seriously affected. Meanwhile frequent oxygen consumption will reduce the service life of ladle and create a lot of inclusions which influence the steel quality greatly.
After dozens of years’ researches, we have developed series of products such as silicon stuffing sand, forsterite stuffing sand, high aluminum stuffing sand and chrome stuffing sand, in which the chrome stuffing sand has the
most favorable effect in application.
This chrome stuffing sand is developed through new production process and optimal formula of flow promoting agent and agglutinant inhibitor. It improves the natural casting rate without any contamination to the molten steel.
Meanwhile our nozzle fill sands have been developed to meet the needs of steel making facilities worldwide. Each
blend is carefully designed to enhance the free flow of steel from the ladle regardless of steelmaking practices.
This is achieved through custom blending which affords each customer a product specific to their manufacturing needs.
About us:
Jinan Linquan Industry and Trade Group Co., Ltd. is a collection of scientific research, design, development, production, and import and export trade in one group of Companies, a national large-scale backbone enterprise for refractory materials. Our company covers an area of more than 300 thousand square meters, have advanced technology and equipment, testing equipment and instruments. We mainly produce fireclay refractories, high aluminum refractories, carbon-containing refractories, and have the production line of a variety of high-purity synthetic materials.
Our most popular products: All series of Ladle and Tundish refractories
Our annual production capacity of slide gate plates is more than 80,000 tons.
General specification for Nozzle filler:
Type |
Filling compound |
Main raw materials |
Chrome ore(South Africa), quartz |
Grain size |
0-1mm |
Storage life |
6 months |
Type of delivery |
Dry |
Chemical analysis:
Cr2O3 |
SiO2 |
Fe2O3 |
Al2O3 |
MgO |
C(total) |
|
Min |
30 |
27 |
19 |
8 |
6 |
0.3 |
Typ |
32 |
29 |
21 |
10 |
7 |
0.5 |
Max |
34 |
31 |
23 |
12 |
8 |
0.7 |
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