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

AWS E9015-B3 nau'in waldawa na hannu don ƙarfe mai jure zafi shine ƙaramin nau'in sodium hydrogen nau'in waldawar 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. Haka kuma za a iya amfani da waldi pearlite zafi resistant karfe tare da matsa lamba kayan aiki aiki zafin jiki a kasa 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.