Product category:
Lubrication - lubricants and lubrication systems
News Release from: Kluber Lubrication GB | Subject: Topas NB 52 grease
Edited by the Manufacturingtalk Editorial
Team on 15 December 2006
Grease adds to product quality
A switch manufacturer applies a film of Kluber Isoflex Topas NB 52 grease to the surface of each component, lubricating contact points evenly, allowing 36,000 components to be treated simultaneously.
The process of efficiently lubricating components during production plays a vitally important role in the quality of a manufacturer's finished products The most frequently used method of lubrication is to place a component into a fixture, either manually or automatically and deposit a predetermined volumetric dose of grease or oil onto a specific contact point on the component
This article was originally published on Manufacturingtalk on 28 Apr 2004 at 8.00am (UK)
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Due poor lubrication, the decision was made by senior management for a major product recall following switch malfunctions at a cost of andeuro;500,000.
The route they have adopted is to apply a very thin film of Kluber Isoflex Topas NB 52 grease to the entire surface of each component, which not only lubricates the contact points evenly, but also allows up to 36,000 components to be treated simultaneously.
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In order for the grease to form a light, even film, it's viscosity must be significantly reduced and this is achieved by mixing the grease with a solvent, which following application is then evaporated, leaving only an even thin film of Isoflex Topas NB 52 grease on each component.
The grease and solvent mixture is proportioned by means of a Dopag ECONO-MIX piston type metering machine at a ratio of 1:1 and is then fed under pressure to a vibratory bowl, where it is mixed before entering the bowl by a Dopag Twin Valve fitted with a static mixer.
A Dopag P80 drum pump is used to feed the grease from standard 25 litre size pails to the ECONO-MIX, whilst the solvent is fed by a diaphragm pump mounted onto a 200 litre size bung drum.
After charging the bowl with components and before dispensing commences, the bowl is programmed to vibrate for a few minutes to allow the components to spread evenly around the bowl, following which the proportioned and mixed liquid is accurately metered into the bowl.
It is important that the precise volume of mixture is dispensed on each occasion, as different types of component and different batch sizes both affect the volume need to be dispensed to achieve an even coverage.
A typical shot size would be in the region of 0.25g per 100 components.
The programme for each type of component and batch size is stored on an MR20 computer, which receives information from gear type volume counters and requires the operator merely to select the correct programme to ensure a perfect result.
After a short period of vibration, air at a temperature of 165 degrees Centigrade is used to evaporate the solvent, leaving only the Isoflex Topas NB 52 grease in contact with the components.
This innovative system has proved a great success in applying an even and light coating of Isoflex Topas NB 52 grease quickly, efficiently and without mess, whilst ensuring perfect quality every time.
The results of combining the use of the Dopag machinery with the Kluber Isoflex NB 52 grease exclusively for all coated parts are zero failures since introduction. Request a free brochure from Kluber Lubrication GB ...
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