Chamotte refractories of SHS-28 grade are used for steel pouring with the help of syphon method into casting-form and moulds, intermediate funnels with nozzles - for top casting.
For the products of soft-mud method of production there is acceptable the interconnected porosity of not more than 28%. Subject to the parties agreement there are allowable the following standards: fire resistance - not less than 1650°С, residual variation of dimension at heating - not more than 1.0%.
SHS-28 No.41 (rectangular four-way collar star) and nozzles (SHS-28 No.No.88, 89, 92) intended for export are wrapped into cardboard or paper, wrapped with stretch-film and laid into wooden case with laid along the perimeter cardboard. The layers are laid with cardboard or liner, and the gaps between the products, from case walls and under the cover are filled with wood chips or flakes.
Siphon tubes (SHS-28 No.No.69-71, 74-77, 82-86) and nozzles (SHS-28 No.No.88, 89, 92) are laid on wooden pallet, interlaid with cardboard sheets, wrapped with stretch film and bundled with polypropylene (or polyester) strip.
Funnels (SHS-28 No.No.1, 3, 4) are laid on wooden pallet, interlaid with cardboard sheets, wrapped with stretch film, covered with wooden cover and bundled with polypropylene (or polyester) strip.
Rising pipes (SHS-28 No.No.6-10) and stars (SHS-28 No.No.31, 33, 35, 36, 41) are laid on wooden pallet, interlaid with cardboard sheets, protected with angles along the perimeter, wrapped with stretch film and bundled with polypropylene (or polyester) strip.
