Company News | Xinmi Changxing Refractory Co.,Ltd

Company News | Xinmi Changxing Refractory Co.,Ltd

Refractory China, Refractories, Refractory Supplier, Refractory Materials - Changxing Refractory

Refractory China, Refractories, Refractory Supplier, Refractory Materials - Changxing Refractory

How to do lining construction

1.Lift the installed pneumatic vibrator into the forma, put it in the bottom, and then raise it by 50mm. Adjust the distance between the hammer head and the forma. With 30mm as the standard, ensure that the hammer head can effectively contact the inner lining of forma.

2.Turn on the gas valve for 30 seconds at low speed, then vibrate at full speed, and vibrate for 5 to 8 minutes for each 100mm increase until 300mm below the top of the furnace.

3. Furnace Heating Technique of Former Patching Lining
3a) Fully fill small and dense scrap materials into the furnace, and heat up at 100-200 celsius degree per hour.
3b) During melting, raise powers slowly to ensure crucible not break until it is full.
3c) Keep heat preservation for one hour at 1680-1700 celsius degree, detecting temperature once per 20 minutes.
3d) After sintering finished inside furnace, it can start to work.

Article source:
http://www.yilongrefractory.com/news/How%20to%20do%20lining%20construction.html
E-mail:sales8@chinaelong.com

Application of Ladle Castables

Application of Ladle Castables

Ladle Castables

Because the water content of the whole ladle castable is large, and the material structure is dense, the water is not easy to be discharged. Therefore, in the ladle baking process, the small heat is long, gradually warming up, preventing rapid heating, and the principle of roasting the fire is strictly prohibited, otherwise the ladle appears. It collapsed and peeled off. Bake with a baking machine and bake in a 72-hour system. The specific distribution is as follows:

Firstly, small fire stage: no less than 3 shifts, 24 hours (only 1/2 gas, no cover);
Secondly, medium fire stage: no less than 3 shifts, 24 hours (only 1/3 gas is added, plus a little wind, stamped);
At last, fire stage: no less than 3 shifts, 24 hours (open gas, add foot, cover)

Article source:
http://www.yilongrefractory.com/news/Application%20of%20ladle%20castables.html
E-mail:sales8@chinaelong.com

Changxing Refractory,Refractory Brick,Castable,Ladle Nozzle,Calcium Silicate,Silicon Carbide: Advantages of covering agent

Changxing Refractory,Refractory Brick,Castable,Ladle Nozzle,Calcium Silicate,Silicon Carbide: Advantages of covering agent: covering agent 1, Insulation covering agent is made of low thermal conductivity material composition, such as: expanded perlite, expand...

Advantages of covering agent

covering agent

1, Insulation covering agent is made of low thermal conductivity material composition, such as: expanded perlite, expanded graphite.

2.In addition to the low thermal conductivity material, by adding a certain percentage of the heating material, and under the heat of the metal liquid, the oxidant provides oxygen to oxidize the reducing agent and prolong the solidification time of the metal liquid in the riser.

3.In the case of different insulation covering agent, the mouth shrinks into a "dish-shaped flat or hemispherical bottom, which is shaped like a U-shaped throat.

Article source:
http://www.yilongrefractory.com/news/Advantages%20of%20covering%20agent.html
E-mail:sales8@chinaelong.com

Ladle with refractory materials are used

refractory materials

Common types of ladle refractories:
(1) Clay refractory brick, clay brick A12O3 content is generally between 30% -50%, the price is low. Mainly used for ladle permanent layer and ladle bottom.
(2) high alumina brick. Brick A12O3 content of 50% -80%, mainly for the working layer ladle.
(3) wax stone brick. The refractory supplier brick is characterized by high SiO2 content. Generally more than 80%, anti-erosion than the clay brick and the integrity of the good, and not hanging residue. Commonly used in the ladle wall and package at the end.
(4) Zircon brick. The brick is mainly used for ladle slag line parts. Brick ZrO2 content is generally between 60% -65%.
(5) Magnesia carbon bricks. The brick is mainly used for ladle slag line parts, especially for multi-furnace continuous casting occasions. Brick MgO content is generally about 76%, carbon content of 15% -20%. It is characterized by small erosion of slag, erosion resistance, good resistance to spalling.
(6) aluminum-magnesium castables. The castable is mainly used for the steel body, and is characterized in that, under the action of molten steel, MgO and A12O3 in the castable react with each other to form aluminum oval spinel, thereby improving the thermal shock resistance of the lining.
(7) aluminum-magnesium carbon brick. This brick is developed on the basis of aluminum-magnesium castable ladle lining, long service life.
(8) Do not burn brick. At present, the materials used in ladle firing bricks can be made into corresponding unburned brick. Its characteristics are relatively simple production process, the price is lower. Brick itself has a certain mechanical strength and erosion resistance, easy construction masonry.
If the ladle itself is also used for refining, you can also choose MgO-Cr2O3-A10O3 series and magnesia carbon brick refractory, are: magnesia-chrome brick, magnesia-chrome-aluminum brick, dolomite brick.
In the content of ink material used for ladle lining brick, it is best to apply a layer of anti-oxidation coating on its surface to prevent burning in the package, the lining surface oxidation loose, affecting its service life.

More refractory:
http://www.yilongrefractory.com/
E-mail: sales8@chinaelong.com