Novice

Our foundry coatings

Uncategorized

We are producer of refractory coatings which are applied to sand moulds and cores in foundries (steel castings, grey cast iron, ductile iron and non-ferrous metals).

We prepared simple infographic of our products.


DATE: Nov 23, 2019
AUTHOR: exoterm

Digitalization: Work smarter, not harder. Part 1: Where to start?

Digitalization, Information technology, Innovation

Where to start? How to do it? What are the benefits? Which approach to choose?

Those were the first questions we asked ourselves when we decided that we must digitize our workflows.

First about the company EXOTERM-IT d.o.o.. Many people think that that EXOTERM-IT d.o.o. is computer company due company name ending -IT, but it really isn’t. EXOTERM-IT d.o.o. was founded in 2002 and is one of the leading manufacturers and suppliers of auxiliary materials for foundries and metallurgy in South-East Europe. Our top-quality products and services, which are the result of highly professional and creative development, provide optimal solutions for the most demanding users.

We are using ERP system from the beginning of company existence, so we were familiar with entering data into databases through programs. But our supportive workflows were going on in old »analogous« way. For example, we had printed forms for different things, which were fulfilled manually and then brought physically to the responsible person who took those forms and transcript them into the system. So duplicate work was going on and some of the forms were lost on the way…

So which approach to choose? While I was reading book Digital Strategy: A Guide to Digital Business Transformation few days ago I found out that there are 2 approaches at digitizing business processes. The first approach is guided by the centralization of digital work and the second is guided by the decentralization of digital work.

We started with digitization of our business processes in 2014. In the process of our digitalization we made several different systems and bought some systems as well. We have one main system called ExoManager and few subsystems which were made specifically for each department in company; warehouse, production unit, quality control… (more about those systems in the following posts in our news section). Actually, we have unconsciously chosen a somewhat decentralized approach.

In the next few posts I will show you our current path in the process of digitalization… Until then best regards…

Andraž Čevka

 


DATE: Nov 11, 2019
AUTHOR: exoterm

Benefits of the use of exothermic insulating materials during ingot casting process

Uncategorized

The benefits of the use of exothermic insulating materials during ingot casting process are presented on the animation below. Different insulating products were applied at the top of the mold during teeming and solidification. MAGMASOFT® casting simulation software was used to show the difference between uninsulated (left side of the animation) and insolated mold (right side). The difference is obvious. While uninsulated mold creates deep pipe, the well-insulated mold prevents occurrence of the pipe and create almost flat top surface.


DATE: Nov 11, 2019
AUTHOR: exoterm

Our refractory coatings

Innovation, Products

Refractory coatings are applied to sand moulds and cores in foundries (steel castings, grey cast iron and ductile iron, and non-ferrous metals).

Refractory coatings provide a protective barrier between the molten metal and the mould or core substrate during the casting process, ensuring the integrity of the cast surface and preventing defects, such as segregations, burnt-in sand, bulges/recesses and other. They reduce the thermal shock caused by sand substrate and reactions between the substrate and melt, strengthen the mould surface and give smooth surface of castings.

Different applying processes can be used for our coatings – dipping, spraying, pouring and applying with brush – providing flexible use in production processes specific to individual foundry.


DATE: Okt 29, 2019
AUTHOR: exoterm

Application of SOL-GEL technology in foundry coatings

Innovation, Products

During steel solidification volumetric contraction occurs inside of an ingot mold, resulting in a cavity know as pipe. To minimize a depth of the pipe insulating materials are applied at the top of the ingot. To form hot top feeder head, insulating or exothermic coverings are used, in the form of plates, rings, segmented plates or pre-shaped form. Further are used exothermic insulating agents at the top of the ingot to protect an open surface of the steel and to keep the ingot head hot. Agents are in the form of powder or plates. The hot top feeder head acts as a reservoir of liquid steel that feeds the lower portion of the ingot, preventing thou the occurrence of the pipe. The left side of the animation shows the effect of applied insulating materials at the top of the mold/ingot, the right side shows the occurrence of the pipe if the ingot head is not isolated.

Source: Livarski vestnik – https://www.drustvo-livarjev.si/index.php?module=vestnik&op=show&vestnikId=72


DATE: Okt 9, 2019
AUTHOR: exoterm

Use cases of using our products

Innovation, Products

During steel solidification volumetric contraction occurs inside of an ingot mold, resulting in a cavity know as pipe. To minimize a depth of the pipe insulating materials are applied at the top of the ingot. To form hot top feeder head, insulating or exothermic coverings are used, in the form of plates, rings, segmented plates or pre-shaped form. Further are used exothermic insulating agents at the top of the ingot to protect an open surface of the steel and to keep the ingot head hot. Agents are in the form of powder or plates. The hot top feeder head acts as a reservoir of liquid steel that feeds the lower portion of the ingot, preventing thou the occurrence of the pipe. The left side of the animation shows the effect of applied insulating materials at the top of the mold/ingot, the right side shows the occurrence of the pipe if the ingot head is not isolated.


DATE: Sep 27, 2019
AUTHOR: exoterm

New control method: Exoprobe

Innovation, Products

Exothermic-insulating materials are used as auxiliary materials in steel foundries, cast iron foundries, non-ferrous foundries and elsewhere. Materials with exothermic and/or insulating function differ in composition, exothermic effect, insulating ability, ignition temperature, method of manufacture and other properties. For effective use of such materials, the manufacturer should be familiar with thermal properties and experimental techniques to achieve the appropriate characteristics at the manufacturing process.

For the industrial control the device for investigated materials was developed and designed. Using the differential thermal analysis their thermal properties of raw materials and manufactured exothermic-insulating materials are investigated, with an aim to optimize and calibrate of industrial device in EXOTERM-IT d.o.o.

The industrial control method Exoprobe allows planning and development of the exothermic-insulating materials, and the process control of the products. Exoprobe works on the principle of maintaining the fixed temperature state of the heating plate by measuring and controlling the power of the heating elements. From the obtained results the thermal properties of materials are calculated. The method Exoprobe is now regularly used in EXOTERM-IT d.o.o.


DATE: Jun 17, 2019
AUTHOR: exoterm

New furnace

Products

In 2018, we invested in new furnace for drying thermal insulation products. That acquisition has increased our production capacity and at the same time improved the quality of our products.


DATE: Maj 31, 2019
AUTHOR: exoterm

Our private solar plant

Ecology

Being aware of our responsibility towards the environment and community in which we work, we respect and strictly comply with environmental laws and regulations. All our products and services are planned, developed, produced and carried out with environmental concerns in mind. We promote and demand responsible environment management, striving for permanent improvement of environmental conditions, reduction of emissions and effective waste disposal. We recycle and buy recycled raw materials and products from our suppliers and do our best to use natural resources including solar energy. Our 650 kW solar plant has been operational since 2013.


DATE: Maj 22, 2019
AUTHOR: exoterm