Can extreme pressure fuse steel in presence of silicon spray?
On a detachable link for anchor chain, I believe that I have heard that the extreme pressure developed when driving the slightly tapered locking pin can cause a recrystallization of the steel parts into silicon steel when silicone spray is used. White grease is recommended, plus an annual disassembly and regrease. Materials engineers to the rescue?
Technically, yes. In the 1960’s, G.E. researchers applied extreme pressure to pure carbon. The end result was the first man-made diamond.
Extreme pressure causes a lot of heat to build up. Silicon spray is easily burned off with heat. However, since the silicone is only applied as a spray, it only leaves a thin film. There isn’t enough silicon in the silicone spray to make much of a difference to the steel. Most silicone spray does not contain a lot of silicon. Usually less than 10% of silicone spray is DIMETHYL SILICONE (Polydimethylsiloxane Silicone ), and only a fraction of that compound is actual silicon (list of ingredients of one silicone spray
([(CH3)2SiO] ) : http://www.biosci.ohio-state.edu/safety/MSDS/KRYLON%20SILICONE%20SPRAY%20AEROSOL.htm )
You mentioned “White grease”. White grease is lithium grease and it can handle much higher temperatures than both regular grease and silicone.
FREDDY KRUEGER – ITALIA 1 – Silicon Mask – Maschera Silicone HORROR
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