Dow Corning installed a new two-stage vacuum pump at its processing plant in the Chemical Manufacturing Complex in Midland, Michigan, to pump gas out of the processing reactor. The vacuum pump uses conventional mineral oil, designated by the original equipment manufacturer (OEM), and catches a serious failure every four to six weeks during the first nine months of operation of the pump. "Corrosion is very bad and the casing is rusty, and we have to do more than just repair," says assembly engineer Lisa Honaman. "Every time we had to buy a new pump housing and other major components, A day or two to reinstall the pump. "

Dow Corning's service technicians suspect that harmless lubricants improve performance by eliminating or altering the corrosion of metal pump components by eliminating or altering the reaction of additives and gases. Therefore, they recommended mineral oil with low additive. Honaman was pleasantly surprised to find that there was a solution for her own company, Dow Corning. Dow Corning has just introduced a new line of industrial lubricants under the trademark "Molik", which is just what the L-0610 vacuum pump oil needs. This ultra-high purity mineral oil is based on a new low-additive chemical technology that uses this technology to minimize the chance of chemical and gaseous reactions. Honaman said, "This additive is very mild, with its formulation as completely free of additives." It is this combination of proprietary additives that reduces the rate of oxidation of new oils, which are produced by increased pressure and temperature , And can lead to premature lubrication failure.

Solvent-refined mineral oils of traditional zinc-based anti-wear agents have a high initial total acid number (TAN). Honaman said: "You can even get sulfuric acid by adding water and hydrogen."

By comparison, Molykraft mineral oil contains no zinc-based chemicals and has a low initial TAN value. At the same time, due to the sulfur content of less than 5ppm, the anti-rust and anti-oxidation additive does not contain sulfur in fact, so the oil is a harmless product, it is suitable for use. Moreover, specially engineered chemicals make them inherently more resistant to oxidation and demulsibility, allowing them up to five times longer life than conventional oils.

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