ng water in lmin see tables on page on the righ B4-DV22-B Bevel-helical speed reduction gearbox B4

Flender/Flender Gear Units/Bevel-helical speed reduction gearbox B4

uminium. The best results on all substrateswere obtained when using silanes.Type 1 1 deservesa par- ticular mention in this context. Except on aluminium, the best results in individual experiments were obtained with the combination of DYNASILAN AMEO and PLEX 3 5 . Further studies must be carried out to determine the degree to which the combination ofType 1 1 1 DYNASI- LAN with the PLEX 3 5 resin, or variation of the ratios of the two su bstance classes relative to each other, leads to considerable improvement on all substrates. Insummary, itcan besaidthataverygood passivatingeffectwasobserved in laboratoryex er iments when using aminosilanes$articularly DYNASILAN 1 1. Field trials must becarrielou; to determine whether correspon ing rinsing solutions can be used under practical conditions. 8 Duration: 0 1-3 1 0 ZH8 Subect: Development and testing of process for degreasing and pickling in the vapour phase in an ,,open reaction space Research centre: Dr Kampschulte Stiftung & Cie Schutzenstrasse 6-7,4 Solingen Government sponsorship: DM 8,7 3 Sponsorship ratio: 5 Yo 1. Purpose of the project The goal of the process is to prepare lastic and metal parts for further processing (bonding, painting, dyeing, electroplating, etc.) & degreasing and pickling in vaporous reaction me- dium. In this context, particular value is attached to environmental friendliness (very low concentra- tions at the workplace and emissions into the environment) and practical applicability (little operating and maintenance effort) with economically affordable investment and operating costs Based on preliminaryworkcarried out at Messrs SEPGmbH, Munich, process is known which produces very good results in the gas-phase pickling of plastics and lightly contaminated metals on laboratory scale under special conditions (hermetic sealing, water saturation tem- perature < -4 ) The project consists of two complementary parts - solvent spray degreasing/solvent vapour de