50 years ago, Lewis Marki founded a small residential excavating business to service Monroe County. Pride in the companyâs excellent workmanship standards and a commitment to outstanding personal service allowed L. Marki & Son, Inc. to expand both its services and the geographic area it served. In 1980, Lewisâs son, Bob joined the company, and today Bob is the President of L. Marki & Son. Keeping with family tradition, in 2002 Bob Marki, Jr. joined the company making the company a three generations strong, family run, local business.
quench (plural quenches) The abnormal termination of operation of a superconducting magnet, occurring when part of the superconducting coil enters the normal state.
Quench C hardening is a mechanical process in which steel and cast iron alloys are strengthened and hardened. These metals consist of ferrous metals and alloys. This is done by heating the material to a certain temperature, depending on the material.uench metals is a progression; the first step is heating, i.e. heating it to the required temperature. Second step is soaking. Soaking can be done by air (air furnace), or a bath or in a vacuum. The soaking time in air furnaces should be 1 to 2 minutes for each millimeter of cross-section.