H3-FH15-B flender zapex coupling Helical gear reducer H3

Flender/Flender Gear Units/Helical gear reducer H3

er-term corrosion pro- tection. In tests of various HHC-free anticorrosion agents, very good corrosion protection was attained along with comparable coating weights. Another main goal of the projects was to test the ossibilities and limits of using organic, HHC- free solvents. The results can be summarised as %ows: hydrocarbons have good cleaning effect on surfaces soiled with lubricoolants. However, the flash point and the resultant plant technology must receive special attention. Due to the poor passa through gapsand the high evaporation rates, alcohol or an alcohollwater azeotrope was to% tested instead of hydro- carbon for use with unfavourable part geometries and completely assembled components. Within the framework of the roject, the cleaning trials also carried out on production parts showed low levels of residuafcontamination along with good material compatibility. Of the physical cleaning methods, the plasma cleaning process is believed, according to pre- liminary trials, to be an applicable cleaning method for surfaces slightly soiled with organic material. 2 Duration: 0.0.8 - 2.0.9 0ZH8 Subject: Continuous coking of coal tar pitchhotary kiln coking Research centre: Geschaftsbereich Teerchemie der Rutgerswerke AG Postfach 1 0 4,4 2 Duisburg Government sponsorship: DM 2,9.1 1.0 Sponsorship ratio: 4% 1. Purpose of the project Coal tar itch from the preparation of coal tar is the base material for the manufacture of elec- trode core, electrode bonding agents, carburising agents for steel, electrographite and refrac- tory ceramic products. Alarge portion of the pitch is processed into superpure coal tar pitch coke by coking in horizon- tal chamber kilns. The rocess used corres onds to the coking of lit coal, the pimary djffer- ence in contrast to coarcoking being that tRe pitch is loaded into kiln cham ers in liquid state. The current liquid itch cokingprocess entails inherent emissions which cannot be completely avoided, de