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Steel MakingAnnealing Of High-speed SteelFor annealing high-speed steel, some makers recommend using g... Carbon In Tool Steel Carbon tool steel, or tool steel as it is commonly called, us... Machineability Reheating for machine ability was done at 100 deg. less than ... Open Hearth Process The open hearth furnace consists of a big brick room with a l... Correction For Cold-junction Errors The voltage generated by a thermo-couple of an electric pyrom... Forging High-speed Steel Heat very slowly and carefully to from 1,800 to 2,000 deg.F.... Rate Of Absorption According to Guillet, the absorption of carbon is favored by ... Application Of Liberty Engine Materials To The Automotive Industry The success of the Liberty engine program was an engineer... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... Quenching Tool Steel To secure proper hardness, the cooling of quenching of steel ... Corrosion This steel like any other steel when distorted by cold worki... Heat Treatment Of Lathe Planer And Similar Tools FIRE.--For these tools a good fire is one made of hard foundr... Surface Carburizing Carburizing, commonly called case-hardening, is the art of pr... Typical Oil-fired Furnaces Several types of standard oil-fired furnaces are shown herew... Robert Mushet Robert (Forester) Mushet (1811-1891), born in the Forest of D... The Effect The heating at 1,600 deg.F. gives the first heat treatment w... A Satisfactory Luting Mixture A mixture of fireclay and sand will be found very satisfactor... For Milling Cutters And Formed Tools FORGING.--Forge as before.--ANNEALING.--Place the steel in a ... Crucible Steel Crucible steel is still made by melting material in a clay or... Connecting Rods The material used for all connecting rods on the Liberty engi... |
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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