15CrMo karfe jerin beaded jiki tissue zafi juriya karfe, yana da babban zafi karfi (δb≥440MPa) da kuma antioxidant, da kuma wani anti-hydrogen lalata iya. Saboda karfe yana ƙunshe da babban abun ciki na Cr, C da sauran kayan haɗin gwiwa, karfe mai karfi ya fi bayyane da ƙarancin walda.

Welding tsari kimantawa gwaji

Bayan gwajin walda 100% ultrasonic rauni bincike bisa ga JB4730-94 "matsin lamba kwantena ba tare da lalacewa ganowa" ka'idodin, walda suture Class I cancanta. A walda tsari kimantawa gwaji bisa ga JB4708 "karfe matsin lamba kwantena walda tsari kimantawa" ka'idoji. Sakamakon ƙididdiga a cikin Table 5.

Table 5 walda tsari kimanta gwajin sakamakon

gwajin tsari Stretch gwajin karkata gwajin Tashin karfi gwajin aky (J / cm2)

Tensile ƙarfi δb / Mpa karya sassa karkata kusurwa fuska karkata baya karkata walda seam haɗuwa layi zafi tasiri yankin (HAZ)

Shirin I 550/530 Matsayi 50. cancanta cancanta 84.8 162 135.6

Shirin II 525/520 mata kayan 50. cancanta cancanta 79.4 109.2 96.7

Sakamakon gwajin janye-janye ya sanar da cewa samfurin janye-janye na nau'ikan tsare-tsare biyu duk sun karya a cikin mater, wanda ke nuna ƙarfin janye-janye na walda seam ya fi mater; Bending gwajin duk cancanta, nuna filastik na walda sutures ne mafi kyau. Dangane da sakamakon gwajin tasiri a cikin tebur na 5, tsarin I na tasiri ya fi girma fiye da tsarin II, wanda ya tabbatar da cewa tsarin I na bayan walda na zafi ya fi dacewa, high temperature annealing ba kawai ya cimma inganta tsarin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗin haɗ Daga sakamakon kayan aikin inji na zafin jiki na ɗaki, ana iya amfani da kayan aikin walda biyu da aka ba da shawarar. Shirin I ya yi amfani da waldi bar kusa da mahaifiyar kayan aiki, waldi suture aiki daidai da mahaifiyar kayan aiki, waldi suture ya kamata ya sami babban zafi karfi, waldi suture a dogon lokaci amfani da high zafi ba sauki lalata. Matsalar ita ce bayan walda zafi magani ƙayyadaddun ne mafi tsauri, bakin zafin jiki da kuma insulation lokaci da kuma dumama da kuma sanyaya gudun sarrafawa ba daidai ba maimakon haka zai haifar da walda suture aiki raguwa. Tsarin II ya yi amfani da Austenitic baken karfe walda bar walda, kodayake za a iya ceton walda bayan zafi magani, amma saboda walda seams da mothers fadada coefficient daban-daban, dogon lokaci high zafi aiki zai iya faruwa da carbon yaduwa hijira yanayin, da sauƙi haifar da walda seams lalacewa a hakewa yankin. Saboda haka, daga amfani da aminci la'akari da, da filin amfani da tsarin I welding ne mafi aminci

15CrMo karfe kauri bango high matsin lamba bututun walda da amfani da biyu walda shirye-shirye ne m. Don tabbatar da walda suture aiki daidai da mahaifiyar kayan aiki da kuma da babban zafi karfi, da amfani da tsari I mafi kyau sakamako, mabuɗin shi ne a tsabta sarrafa bayan walda zafi magani tsari.

Tsarin II duk da cewa za a iya ceton maganin zafi bayan walda, amma yiwuwar warawar ƙaura na carbon da ke haifar da lalacewar walda ba za a iya watsi da shi ba, saboda haka, kawai lokacin da ba za a iya yin maganin zafi ba bayan walda.