Naslov
Okolišno neškodljive hidraulične tekučine za šumarske strojeve - stanje i izglednost.
(Environmentally friendly hydraulic fluids for forestry machines - conditions and prospects.)

Autori
Augustin, H ; Dekanic, S ; Martinic, I ; Sever, S

Izvornik
Mehanizacija šumarstva ; Zagreb, Croatia: Sveučilista u Zagrebu, Šumarski Fakultet (Faculty of Forestry, University of Zagreb). (0352-5406) 25 (2000), 1/2; 41-58

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
šumarstvo; hidraulične tekućine; šumarski strojevi; biološka ulja; okolišna politika
(forestry; hydraulic fluids; forestry machines; biological oils; environment policy)

Sažetak
Fluids for hydraulic machines in forestry are an essential component of cutting systems, transmissions, lifting devices, cooling systems, electric units, their maintenance (washing, cleaning), etc. The use of biodegradable oils on cutting bi ad es of chain saws as well as within the motor and hydraulic systems has become a must. Biodegradable oils have to meet different requirements aimed at keeping biodiversityand natural conditions in ecosystems. Possible further requirements arise from safety considerations - the fluid must be fireproof Qr, due to safety at work, it must have only a slight evaporation tendency. In using hydraulic fluids, special consideration is given to technical development, sometimes achievements of high technology. For several decades now, biologically quickly degradable and toxically less dangerous basic fluids have been available. Their use has become quite significant since the mid-1980s. Considerable confusion has arisen among users and producers regarding different environmentally friendly basic fluids. The number of designations currently in use on the market is several times higher than the number of types of basic fluids available in practice. Therefore, this paper gives a survey of biological oils, the so-called bio-oils, hydraulic fluids often used in forestry. The basic data related to content and characteristics of biological oils are given for the most frequent groups. A short survey is given of the impact of lubricant oils on environment. After explaining the basic terms and presenting the features of bio-oils compared to basic fluids they are made of, special reference is given to biodegradable lubricants for chain saws and bio-oils for hydraulic operating systems of forestry machines. The availability of raw materials for processing bio-oils is considered as well as prospects of their use..

Izvorni jezik
Hrvatski, engleski

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