kindla osakeste suuruse ja kujuga ning granulomeetrilise koostisega tulekindlad puistematerjalid liivvormide ja -kärnide valmistamiseks valutöökodades (vt valutöökoda/valutsehh; vrd vormisegu)
Hea teada
Valutehnoloogias kasutatakse vormiliiva terasuurusega 0,06-2 mm, ning veelgi peenemad osakesed, mis on iseloomulikud looduslikule liivale (muda, savi) puuduvad. Enamkasutatavad on kvartsliiv ning mineraalide oliviin, tsirkoon, kromiit, alumiiniumoksiid jt peenestamisel saadud vormiliivad.
refractories with a certain particle size, shape and particle distribution requirement used to make sand mold (core) for foundry (see: foundry; compare: molding sand)
Hea teada
In casting the term denotes an aggregate with an individual particle (grain) size of 0.06 - 2 mm in diameter, that is largely free of finer constituents, such as silt and clay, which are often present in natural sand deposits. The most commonly used foundry sand is silica; however, zircon, olivine, aluminum silicates, and other crushed ceramics are used for special applications.
