Ladle Shrouds

Ladle Shrouds

Product Description

This is a protection device from ladle to tundish,which prevents the molten water from splashing and oxidation.Application of anti-corrosion compound materials in slag line improves the anti-slag erosion property greatly.The promotion of non-baking ladle shrouds will be easy for users to operate and save energies.

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Basic Info
Core Highlights
FAQ
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Basic Info

Items		Body	Slag line
Chemical Composition( % )	Al2O3	≥50	≥60


	C/SiC	≥20	≥20
Bulk Density(g/cm³)		≥2.45	≥2.7
Apparent Porosity（%）		≤20	≤18

Cold Crushing Strength（MPa）		≥20	≥20

Modulus of Rupture-Room Temp( MPa )		≥7	≥7

Thermal shock resistance (sequence)		≥5	≥5

Core Highlights

1.Perfect design of argon insert which isolate oxygen from molten steel to prevent from oxidation

2.The body has perfect anti-thermal shock property.

3.Slag line compound materials can improve anti-slag property effectively.

4.Argon insert connect device.It's convenient,effective and easy to operate.

5.Anti-oxidation coating prevents products from oxidation.

FAQ

Q: Slow Heat Conduction

A: 1. Not preheating according to the standard procedure.
2. Slag influences heat conduction.
3. The crucible has reached its service life.
Q: Crucibe corrosion

A: 1. Adding flux before metal is molten or excessive use of flux.
2. Certain fluxes contain corrosion substances.
3. Fuel containing corrosive substance.
4. Abnormal high-temperature operation may result in glaze layer smelting resembling corrosion.
Q: Top problems

A: 1. Repeatedly top impacted on top area cause oxidation.
2.Slags accumulated arround the top area or between the top area and the furnace cover.
3.Small gape between the top and the furnace cover. 4. Low temperature on top area.
5. Contacting with some matels with lager heat exchanging coefficients.
6. Excentral installation cause not enough space between the top and furnace.
Q: Excessive oxidation

A: 1. Flame in furnace against the bottom of the crucible directly.
2. Low temperature in the top area. 3.Overheated working temperature.
4. Hoisting or moving improperly damages glaze layer.
5. The emergent drain hole is open.
Q: Explosion

A: 1.Heating rapidly while the crucible has damped during transportation or storage.
2. Over rapid heating-up during preheating procedure.
3. The added materials are not completely dried.
Q: Middle or bottom craks

A: 1.Impacted during transportation or installation.
2. Crucible should be placed in the middle of the furnace stack smoothly and stably.
3. An improper graphite stand is used.
4. The existence of great thermal difference in the furnace.
5.Matel ingots in the crucible filled horizontally or diagonally.Metal materials overfilled.
6. Leftover slag or molten matal in the crucible.

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