induction heating is the process of heating an electrically conducting object usually a metal by electromagnetic induction, through heat generated in the object by eddy currents.an induction heater consists of an electromagnet and an electronic oscillator that passes a high-frequency alternating current ac through the electromagnet. the rapidly alternating magnetic field penetrates the .
electroplating of acid gold on underlying copper- or nickel-plated circuits reduces contact resistance as well as surface hardness. copper-plated areas of mild steel act as a mask if case hardening of such areas are not desired. tin-plated steel is chromium-plated to prevent dulling of the surface due to oxidation of tin.
steelpans also known as steel pans, steel drums or pans, and sometimes, collectively with other musicians, as a steel band or orchestra is a musical instrument originating from trinidad and tobago.steelpan musicians are called pannists. the modern pan is a chromatically pitched percussion instrument made from 55 gallon industrial drums that formerly contained chemicals.
bluing may be applied, for example, by immersing steel parts in a solution of potassium nitrate, sodium hydroxide, and water heated to the boiling point, 275 f to 310 f 135 c to 154 c depending on the recipe. similarly, stainless steel parts may be immersed in a mixture of nitrates and chromates, similarly heated.
rust is another name for iron oxide, which occurs when iron or an alloy that contains iron, like steel, is exposed to oxygen and moisture for a long period of time. over time, the oxygen combines with the metal at an atomic level, forming a new compound called an oxide and weakening the bonds of the metal itself. although some people refer to .
stainless steel 304 and 316/316l grades the most widely utilized and known ibc is the limited re-use, caged ibc tote container. caged ibc totes are composite intermediate bulk containers — a white/translucent plastic container typically high-density polyethylene contained and protected by a tubular galvanized steel grid, common.
in general, crevice corrosion is of greatest concern for materials which are normally passive metals, like stainless steel or aluminum. crevice corrosion tends to be of greatest significance to components built of highly corrosion-resistant superalloys and operating with the purest-available water chemistry.
a shell and tube heat exchanger is a class of heat exchanger designs. it is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. as its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it .
stress corrosion cracking scc is the growth of crack formation in a corrosive environment. it can lead to unexpected sudden failure of normally ductile metal alloys subjected to a tensile stress, especially at elevated temperature.scc is highly chemically specific in that certain alloys are likely to undergo scc only when exposed to a small number of chemical environments.
a galvanic anode, or sacrificial anode, is the main component of a galvanic cathodic protection cp system used to protect buried or submerged metal structures from corrosion.. they are made from a metal alloy with a more 'active' voltage more negative reduction potential / more positive electrochemical potential than the metal of the structure.the difference in potential between the two .