Insulation application

Metallurgy and foundry

Foundry is the industry where HOBRA insulation products have found perhaps the largest application in the TVAROFORM product range of thermally insulating shaped forms.
TVAROFORM refractory shaped forms are used predominantly in the following applications: sprue holes for the Lost Foam technology, pouring runners, mould inlets, filter carriers, melting pots, insulation of furnace inlet holes and spouts, insulation of risers, metallurgy of ferrous and non-ferrous metals, and as a substitute for asbestos materials (seals, protection, etc.).

In the metallurgy industry, HOBRA insulation is used

primarily as expansion insulation between refractory concrete (fireclay) and the steel shell of thermal equipment (furnaces, ladles, etc.), as insulation sealing or separate insulation, for the protection of probes, pyrometers, inspection holes and orifices. Individual application examples are specified in the product sheets of the respective materials.

 

A brief overview of the particular applications of HOBRA products in the metallurgical industry:

  • Insulation of mixers and heaters (Flesibrex®, Tibrex®, Sibrex®)
  • Insulation of ladle and furnace lids (Tibrex®, Sibrex®)
  • High-temperature sealing for all applications (Flesibrex®, Tibrex®, Sibrex®)
  • Insulation and sealing of cars (Flesibrex®, Sibrex® 140)
  • Aluminum metallurgy (Flesibrex®, Tvaroform, Tibrex®)
  • Fire and heat radiation protection (Flesibrex®, Tibrex®, Sibrex®, Tvaroform)
  • Metallurgy of ferrous and non-ferrous metals (Flesibrex®, Tvaroform, Tibrex®)
  • Expansion insulation behind fireclay brick and concrete masonry (Flesibrex®, Sibrex® 140)

HOBRA products for metallurgy and foundry

HOBRA products for metallurgy and foundry

FLESIBREX®

FLESIBREX®

FLESIBREX® refractory paper is produced using a paper-processing technology from a water suspension consisting of loose aluminosilicate fibres, organic binder and admixtures. The paper is easily workable and sufficiently strong, and it can be wound onto various pipes and curved surfaces.
TIBREX®

TIBREX®

TIBREX® refractory boards are manufactured from ceramic, aluminosilicate heat-resistant fibers bonded only with an inorganic binder. The boards are used for various purposes where high thermally-insulating capacity and shape stability under higher temperatures is required.
SIBREX®140

SIBREX®140

SIBREX®140 refractory boards are manufactured from ceramic, aluminosilicate fibers bonded with combined inorganic and organic binders and are used as thermally insulating materials at temperatures up to 1,100 °C.
SIBREX® 300

SIBREX® 300

The solid refractory SIBREX® 300 boards are produced using paper-making technology, are made of aqueous suspension composed of fibrillated ceramic aluminosilicate fibers (previously also known as Sibral), and of combined bonding agents and other additions.
IZOBREX®

IZOBREX®

IZOBREX® refractory boards are manufactured from a mixture of ceramic aluminosilicate fibers and mineral wool, bonded with organic and inorganic binders. IZOBREX® refractory boards are intended especially for thermal insulation within the temperature range of 400-800°C.
HOBREX

HOBREX

HOBREX mineral fiber boards are manufactured from mineral wool and organic binders. They feature dimensional stability and good thermally insulating properties. The boards are suitable exclusively for building interiors to provide insulation and thermal resistance of ventilation exhausts in bathroom units, for tiling and suspended ceilings, and as thermal and impact insulation on floors and in concrete.
TVAROFORM

TVAROFORM

TVAROFORM refractory and thermally insulating shaped forms are manufactured from aluminosilicate fibers suspended in water with the addition of an inorganic binder and a small quantity of organic binders.
WATER JET CUTTING

WATER JET CUTTING

Our firm uses state-of-the-art technology for precise cutting. On the basis of the drawing documentation provided, we are able to make any area cut-out from our materials up to dimensions of 1,500 x 1,200 mm.