Steel pressure vessel weld heat treatment
(1) pressure vessel steel weld heat treatment after the heat treatment should be usedas a whole. Like to take sub-heat treatment, heat treatment of their overlapping length should be not less than 1500mm. Outer part of the furnace insulation measuresshould be taken.
(2) steel pressure vessel weld heat treatment girth welds and repaired welds,allowing the use of local heat treatment. Local heat treatment of the weld, to includethe entire weld. Heat weld width on each side of not less than twice the thickness ofthe shell name; near the heated parts of the shell insulation measures should be taken.
(3) pressure vessel steel weld heat treatment should be ended and all the welding work experience received after passing the pressure test before.
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Keywords: reactor, heat exchanger, pressure vessel
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