Loka Refractories - Did you know that refractory materials contribute to our daily lives?
Refractory materials actually have a big role in the existence of things we need everyday such as fuel, vehicles, electricity, shelter, and many more.
That's what makes refractory materials the foundation of the following industries. Want to know more about it? Check out the explanation below!
6 Industries that Require Refractory Materials
Smelter is an industry that processes mining products so that the metal content increases. Smelter itself comes from the word smelting, namely the separation of pure metal from metal ore.
The process of separating pure metals from metal ores requires very high temperatures. This is where refractory materials come into play.
In the cement industry, refractory materials have a role as a protector of the steel shell and kiln shell from hot material, gas temperature, and abrasion.
In addition, the refractory plays a role in controlling the flow of material through the kiln. Refractory materials that are alkaline are often used by this industry.
Various kinds of refractories are required in the production of iron and steel to operate the furnace.
Refractory materials are usually applied to the backup zone and working interface of the furnace according to their functions, including molding, mixing, transferring hot molten metal, molten steel and slag.
Glass and ceramics are produced through a combustion process using a kiln/furnace oven.
Refractory material is a crucial component of the oven. The use of refractory materials plays a role in perfect combustion so as to produce quality products.
The chemical and gas industry involves very high heat and pressure energy, so a refractory material is needed.
Refractory materials with high alumina and insulation are needed in reformers, furnaces, reactors, burners, and many more.
The aluminum production process requires very high temperatures, such as in the refining and melting processes.
Various kinds of refractory materials are commonly applied to ladles and furnaces depending on the process. Industries that require refractory materials are not limited to those listed above.
There are still many other industries with various scales that require refractories.
For the sake of your industries, it is necessary to use good quality materials because refractory failure can cause substantial losses.
Want to get quality refractory material? Call us now!
LOKA REFRACTORIES
E-mail: info@lokarefractories.com
Telp : (031)7663307, 0821-4280-8500
Loka Refractories - You must be familiar with fire bricks or fire clay bricks right? Refractory bricks consist of many components in their raw materials.
However, the main components are alumina and silica. In this article, we will discuss about alumina.
What is alumina? Why is the chemical component alumina used in the manufacture of refractory materials, one of which is refractory brick? Check out the following explanation!
What is alumina?
Alumina is a chemical compound with the chemical formula Al2O3, which is composed of aluminum and oxygen. Not only in the refractory industry, alumina is also widely used in the ceramics and glass industries.
Where does alumina come from?
The natural alumina component is obtained from bauxite, a material in the form of sedimentary rock. In Indonesia, several bauxite producing regions are Sumatra, Riau and Kalimantan.
Bauxite will be processed into calcined alumina which is artificial alumina through the bayer process. Not only calcined alumina, artificial alumina includes fused alumina and tabular alumina.
Why does alumina used for fire bricks?
Not only refractory, alumina is a component of most refractory materials. Why? Because alumina has a high melting point, is a good heat insulator, and withstands high temperature stress.
How to get alumina fire bricks?
Loka Refractories provides refractory bricks with various levels of alumina! Those with high alumina content include SK-36 and SK-38 high alumina bricks. Get high alumina refractory bricks at special prices now!
Contact Us!
LOKA REFRACTORIES
Phone: 031-7663307
Whatsapp : 082142808900
E-mail :info@lokarefractories.com
Loka Refractories - In addition to high temperature and pressure resistance, refractory materials must also be resistant to abrasion.
Abrasion itself is damage in the form of erosion of the refractory lining due to friction with the material in the kiln/furnace/boiler.
Refractory damage can hinder industrial processes and cause considerable losses.
Therefore, refractory materials must be tested for abrasion resistance. One of the indicators is Cold Crushing Strength (CCS) or compressive strength.
What is cold crushing strength and how is it tested? Check out the article below!
- What is Cold Crushing Strength?
Cold Crushing Strength or also known as compressive strength is the ability to withstand refractory materials against compression loads at room temperature.
From the CCS test, information is obtained on the strength in transportation, combustion suitability and resistance to abrasion, bulk density and porosity.
There are many standards for conducting CCS tests, one of which is ASTM C133.
- How is the CCS Test Performed?
The CCS test is conducted by placing a molded or mortar refractory stone or refractory cement sample on a special machine.
Then, the sample will be loaded until it reaches the maximum load and cracks (hydraulic compression). The maximum load will be used to calculate the CCS value.
Cold Crushing Strength is also an indicator of abrasion resistance for PT Loka Refractories products.
Get materials that are tested for performance and quality by contacting:
E-mail : info@lokarefractories.com
Phone : 031-7663307, 0821-4280-8500