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KERATECH s.r.o. » Refractory materials » Concretes, mass

Concretes, masses

Our comapny, like the lider of aliance KERMET offer refractory materials for all the applications in the fi eld of the foundry industry, for heating and subsequent heat treatment of metals.

With respect to its original specialisation in the production of unshaped materials, the company still supplies the materials predominantly in the form of mixtures already prepared for direct processing or further processed by customers by adding water or special binders.

However, the proportion of supplies in the form of already finished components made of castables has been increasing. Those components are tempered at a temperature of >600 °C. Therefore, the customer does not have to produce on site and perform subsequent drying. Thus performed repair is significantly quicker.

The field of application of the refractory materials in the foundry industry is specifi c as compared to other areas. The refractory material is mostly in direct contact with molten metal and slag. Wear and tear is very high and also very different as per the individual customers – even with the same equipment and the same metal.

A wide field of application of refractory materials includes among others the following:

Cupola furnaces

  • Dense, low-cement castables, and castables with a very low content of cement for shaft, hearth, tapping siphon, combustion chamber, and stack
  • Ramming mixes for hearth and tapping siphon
  • Ramming and repair mixes for channels

Fore hearth

  • Ramming mixes for the permanent as well as the provisional lining
  • Dense, low-cement castables, and castables with a very low content of cement for the permanent as well as the provisional linings
  • Castables and mixes for repairs of the existing damaged lining

Crucible and channel induction furnaces (grey and nodular cast iron, steel, and non-ferrous metals)

  • Dense, low-cement castables, and castables with aultra low content of cement for covers
  • Insulating castable for covers
  • Ramming mixes for covers
  • Ramming mixes for the provisional lining
  • Repair mixes for runners
  • Self-fl owing castables for repairs of bottom and walls
  • Refractory mastics as binding material for moulded pieces
  • Crucible pedestals made of low-cement castables and castables with a very low content of cement

Transfer and casting ladles

  • Ramming mixes for the provisional lining
  • Insulating castable for the insulating lining
  • Low-cement castables and castables with a very low content of cement for the provisional lining
  • Castables chemically bonded and for repairs of pour-out nozzles
  • Self-fl owing castables for repairs of bottom and walls
  • Mastic for seating of pocket and gas-purging blocks
  • Refractory mastics as binding material for moulded pieces
  • Refractory protective coating for cast iron ladles

Products and mixes for out-of-furnace metallurgy

  • Complete argon purging nozzles
  • Quickly installable castables for oxygen nozzles

Equipment for heating and heat treatment of metals

  • Monolithic castable linings and linings made of castable pre-tempered blocks.
  • Walking-beam furnaces hearths
  • Hearths and curbs of rotary hearth furnaces
  • Walls and ceilings of annealing furnaces
  • Frames and upper layers of annealing furnace cars
  • Furnace exhaust fl ues
  • Burner moulded pieces

Slide valves

  • Mastic sealant

Electric arc furnaces

  • Prefabricated and pre-tempered castable blocks, either the whole arch or its central part – so called heart (electrode bushing) and the outlet runner moulded piece. The castables of the ULCC type are used.
  • Refractory mastics as binding material for moulded pieces

Foundry and refinery of aluminium and other non-ferrous metals:

  • Castable linings of transfer ladles, the ladle lining in the steel shell in the production areas or directly in the foundry, and the controlled expert preheating
  • Rammed transfer ladle linings from a wide variety of the RUDOPLAST ramming mixes
  • Castable linings of the melting and holding furnaces, special castables
  • ULCC and LCC resistant to metal penetration and corrosion of aggressive slag in the course of the refinery process
  • Ceramic stirrers of metals
  • Prefabricated outlet runners
  • Special castable moulded pieces
  • Burner moulded pieces
  • Refractory mastics and coatings
  • Quickly installable repair mixes

Precision casting

  • Grog for the precision casting according to the investment pattern of the MONOFRAX series
  • Special grog for the DIFRAX, TRIFRAX, GRUNDMIX, and UNIVERSMIX for the precision casting

News


30.12.2015 | We have build 4 chamber furnaces at VSMPO-AVISMA (Russia)

We have build 4 electrical chamber electrical heating furnace (AMS 2750E) for titanium alloys.

15.10.2015 | We have build two push-type furnaces at MPZ

We have build 2 pushing furnaces at MPZ (Belarus).

03.11.2014 | We have build two car bottom electrical furnaces

We have build two electrical car bottom chamber furnaces for heat treatment of titanium. Company - "VSMPO-AVISMA" (Russia). Furnaces under norm AMS 2750.
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