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ramming mass

 
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Description

 Currently, there are two type of ramming masses used in the glass furnace. One is AZS ramming mass and the other is zirconite ramming mass. 
AZS ramming mass is made of crushed fused cast AZS brick particles as aggregate materials mixed with other auxiliary materials. It reserves the advantage of fused cast AZS bricks such as good corrosion resistance to molten glass and metals, low porosity and stable properties. 
Zirconite ramming mass is made by adding a certain portion of crushed sintered zircon brick particles into the zircon clay and then adding other auxiliary materials. It has high refractoriness and good corrosion resistance to glass liquid. 
During construction, the two types of zircon ramming masses are mixed by adding a proportion of water. After mixed evenly, the ramming mass is wet and loose. Then it is rammed and sintered into a rigid unitary body. It contains no phosphoric acid and is safer and more convenient. 
Although the two zircon ramming masses both have good corrosion resistance to molten glass and almost no pollution to glass liquid, proper choice should be made according to the properties of the glass produced. 
The main difference between the two ramming masses is the content of Al2O3 and the porosity. Since there are joints between the paving bricks, glass liquid will penetrate into the ramming mass through the joints. Therefore, the ramming mass should have good corrosion resistance to the molten glass. 
AZS ramming mass can form a layer of Al2O3 layer when contacting the alkali glass liquid, which prevents ramming mass from melting in the glass liquid. The interface layer has passivation characteristics and it has good abrasive resistance and corrosion resistance. Since zirconite ramming mass contains no alumina, when it contacts alkali glass liquid, it will not form a protective layer. So, it is easy to be broken down. 
In short, the two have similar corrosion resistance. Since zirconite ramming mass has a content of Al2O3 and two have different porosity, AZS ramming mass is suitable to the bottom ramming layer of soda-lime-silica glass, vacuum glass and other alkali glass furnaces, while zirconite ramming mass is more suitable to the bottom ramming layer of weak alkaline borosilicate glass furnaces.

 

Characteristic

Ramming Mass:

1. High refractoriness, High refractoriness under load.
2. High density, low porosity.
3. Good slag resistance and corrosion resistance.
4. High strength and wear resistance.
5. Good resistance to flake performance.
6. Good thermal shock stability.
7. Scouring resistance
8. Good hot strength.

Specification
Ramming mix/ masses for EAF bottom/converter

Ramming Mass Technical Date:

Item

Behaviors

AZSR-50V

ERSOL 50

AZSM-06J

ERSOL 06

AZSM-05

ERSOL 05

AZSM-04L

ERSOL 04

Chemical

Composition

Al2O3

48

48

48

48

ZrO2

30

30

30

30

SiO2

20

20

20

20

Others

2

2

2

2

Bulk density g/cm3

3.2

3.1

3.1

3.1

Crystallographic analysis after being sintered at 1300/1500°C

Corundum, zirconium oxide

Corundum, zirconium oxide

Corundum, zirconium oxide

Corundum, zirconium oxide

Thermal conductivity

Good

Good

Good

Good

Anti-corrosion property

Excellent at 1300°C

Excellent at 1300°C

Excellent at 1300°C

Excellent at 1300°C

particle diameter of grain

0-5mm

0-0.6mm

0-0.5mm

0-0.4mm

Application temperature

Cold/low temperature

Cold/low temperature

Cold/low temperature

Cold/low temperature

Quantity of water

8-10%

(proportion by weight)

10-12%

(proportion by weight)

10-12%

(proportion by weight)

10-12%

(proportion by weight)

Solidification

Water (ceramic)

Water (ceramic)

Water (ceramic)

Water (ceramic)

Packaging

25kg/bag

25kg/bag

25kg/bag

25kg/bag

Quality guarantee period

12 months

12 months

12 months

12 months

Used for

Under bottom paving, spreading,

Melting end and working area

Under bottom paving, spreading and the place between fused cast brick and ERSOL 50

Under bottom paving, spreading, and the joint between bricks of two layers that are between the fused cast brick and ERSOL 50

Joint between bricks of two 

 

Production Equipment

Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.

Testing Testing Testing Testing
Packing Details
Packing details:

★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.

★Wooden pallet size: usually 92*92cm (standard brick)

★Castable: Ton bag with rain film and 25kg bags inside

★Or according to customer’s requirements

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Transportation

★Port of dispatch: Tianjin port; Qingdao port

★Delivery time: According to customer’s demand or two sides negotiate

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Our Services

We provide you 

★Timely response: Timely response to your inquiry within 24 hours and provide solution. 

★Competitive Price: Make the products competitive in your market. 

★Free sample: Free sample are offered, trial order are accepted for quality evaluation. 

★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.

★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment. 

★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.

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Certification:  (ISO 9001:2015)

JUNDAO (HENAN) NEW MATERIALS CO.,LTD.

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