Steel MakingGas Consumption For CarburizingAlthough the advantages offered by the gas-fired furnace for ... Placing The Thermo-couples The following illustrations from the Taylor Instrument Compan... Cutting-off Steel From Bar To cut a piece from an annealed bar, cut off with a hack saw,... Rate Of Absorption According to Guillet, the absorption of carbon is favored by ... Air-hardening Steels These steels are recommended for boring, turning and planing... Annealing Of High-speed Steel For annealing high-speed steel, some makers recommend using g... Hardening Steel is hardened by quenching from above the upper critical.... Carbon In Tool Steel Carbon tool steel, or tool steel as it is commonly called, us... Chromium Chromium when alloyed with steel, has the characteristic func... Forging High-speed Steel Heat very slowly and carefully to from 1,800 to 2,000 deg.F.... Heat Treatment Of Lathe Planer And Similar Tools FIRE.--For these tools a good fire is one made of hard foundr... Corrosion This steel like any other steel when distorted by cold worki... Preventing Carburizing By Copper-plating Copper-plating has been found effective and must have a thick... Compensating Leads By the use of compensating leads, formed of the same materia... Heat Treatment Of Axles Parts of this general type should be heat-treated to show the... Conclusions Martien was probably never a serious contender for the honor ... Hardening High-speed Steels We will now take up the matter of hardening high-speed steels... The Forging Of Steel So much depends upon the forging of steel that this operation... Quality And Structure The quality of high-speed steel is dependent to a very great ... The Modern Hardening Room A hardening room of today means a very different place from ... |
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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