the basic spot-welding characteristics of two hsla steels-mn-mo-cb and v-n-were investigated and compared with those of an sae 1008 carbon steel. both the mn-mo-cb steel and the v-n steel could be spot welded using the same electrode size, electrode force, and weld time as for the sae 1008 steel of similar thickness. however, compared to the sae 1008 steel, the welding current level was lower for the hsla steels. the ...
Two new model systems have been developed for research on photographic sensitivity with crystals of silver chloride, bromide, chlorobromides and bromoidides. Thin square tabular crystals with sides of several hundred microns have been grown from aqueous solvent mixtures, saturated with the silver halides, and containing ethylamine, monoethanolamine, pyridine, and ammonium hydroxide. Such crystals can be produced over the whole range of silver chlorobromide compositions and with up to 5 mol% ...
The resultant error introduced by using finite impedance measuring instruments in thermocouple circuits was determined quantitatively and rigorously. The standard-practice correction formula to account for finite impedance of measuring instruments in thermocouple circuits is valid (provided there are no excessive radial temperature and voltage gradients). The measured voltage can be corrected to give voltage values for use with standard tables. The analysis shows that error is reduced by decreased thermocouple ...
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