Steel MakingQuenching The WorkIn some operations case-hardened work is quenched from the bo... Heat-treating Department The heat-treating department occupies an L-shaped building. ... Heavy Forging Practice In heavy forging practice where the metal is being worked at... Drop Forging Dies The kind of steel used in the die of course influences the he... Blending The Compound Essentially, this consists of the sturdy, power-driven separa... Impact Tests Impact tests are of considerable importance as an indication ... Sulphur SULPHUR is another element (symbol S) which is always found i... Case-hardening Treatments For Various Steels Plain water, salt water and linseed oil are the three most co... The Forging Of Steel So much depends upon the forging of steel that this operation... Nickel-chromium A combination of the characteristics of nickel and the charac... Tungsten Tungsten, as an alloy in steel, has been known and used for a... Corrosion This steel like any other steel when distorted by cold worki... Separating The Work From The Compound During the pulling of the heat, the pots are dumped upon a ca... Composition And Properties Of Steel It is a remarkable fact that one can look through a dozen tex... Hardening High-speed Steel In forging use coke for fuel in the forge. Heat steel slowly ... Tempering Round Dies A number of circular dies of carbon tool steel for use in too... Cyanide Bath For Tool Steels All high-carbon tool steels are heated in a cyanide bath. Wi... Piston Pin The piston pin on an aviation engine must possess maximum res... Effects Of Proper Annealing Proper annealing of low-carbon steels causes a complete solu... Making Steel Balls Steel balls are made from rods or coils according to size, st... |
Pyrometers For Molten MetalCategory: PYROMETRY AND PYROMETERS Pyrometers for molten metal are connected to portable thermocouples as in Fig. 132. Usually the pyrometer is portable, as shown in this case, which is a Brown. Other methods of mounting for this kind of work arc shown in Figs. 133 and 134. The bent mountings are designed for molten metal, such as brass or copper and are supplied with either clay, graphite or carborundum tubes. Fifteen feet of connecting wire is usually supplied. The angle mountings, Fig. 134, are recommended for baths such as lead or cyanide. The horizontal arm is usually about 14 in. long, and the whole mounting is easily taken apart making replacements very easy. Details of the thermo-couple shown in Fig. 132 are given in Fig. 135. This is a straight rod with a protector for the hand of the operator. The lag in such couples is less than one minute. These are Englehard mountings. Next: Protectors For Thermo-couples Previous: An Automatic Temperature Control Pyrometer
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