AWS E9015-B3 Low-alloy steels Manual electrode Welding Connection

AWS E9015-B3 nau'in waldawa na hannu don ƙarfe mai jurewa zafi shine ƙaramin nau'in sodium hydrogen nau'in walƙiya na hannu, wanda har yanzu yana da kyakkyawan juriya mai rarrafe a 550 ℃.Kuma baka yana da ƙarfi, ƙasa da fashewa, yana haɓaka da kyau, de-slagging yana da sauƙi, aikin X-Ray yana da kyau;Ƙarƙashin yanayin kula da zafi na musamman, har yanzu yana iya tabbatar da ingantaccen tasirin tasirin zafi.Hakanan za'a iya amfani dashi don waldawa pearlite zafi mai jurewa karfe tare da kayan aikin matsa lamba aiki da zazzabi ƙasa 550 ℃, kamar 12Cr2MolR da sauran kayan.Kafin waldi, wajibi ne a kula da preheating da zafin jiki tsakanin tashoshi zuwa 160 ~ 190 ℃ kafin waldi.Bayan waldi da aka kammala, da zafi magani tsari na 690 ± 15 ℃ * 1h ne da za'ayi bisa ga misali bukatun na waldi kayan.Lokacin walda irin wannan karfe dole ne a preheated, jinkirin sanyaya bayan waldi da sauran matakan, amma preheating zafin jiki ba mafi girma, dole ne tsananin aiwatar da walda tsarin bukatun.