Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 462
the space to be filled when weldingand about which a mold is made. It is melted out of the moldbefore welding. Preparing the Mold. The process of preparing the crucibleand the mold are the principal features of the entire operation ofthermit welding, as the mere act of casting the weld is… … Fig. 128. Section of Typical Thermit Mold Showing Riser, Pouring Gate, and Heating Gate Courtesy of Goldschmidt Thermit Company while hot enough to be plastic, and with a magnesia stone thimble atthe bottom to form a bushed hole and protect the crucible. Themagnesia lining should be put into place…
Electrical engineering
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