Amabhawodi ekhanda le-hex ezinga eliphezulu 12.9 enziwe nge-alloy steel eqinisiwe futhi elungiswe ngokushisa, enzelwe ukuxhuma okubalulekile kwesakhiwo nemishini edinga amandla aphezulu okuthwala umthwalo. Ngamandla okudabuka okungenani angu-1,220 MPa namandla okunikezela okungenani angu-1,100 MPa, lawa mabhawodi anikeza cishe amandla aphindwe kathathu kunamabhawodi ajwayelekile ezinga 4.8, okuwenza afanele izinhlelo zokusebenza lapho ubuqotho bokuxhuma bubalulekile. Ukuphela kwendawo okumnyama kwe-oxide kunikeza ukubukeka okuhlanzekile, okugcina uwoyela ezimakethe zasekhaya nezokuthumela ngaphandle. Izicaciso Ezibalulekile Ipharamitha Incazelo Izinga Lamandla 12.9 Impahla Insimbi ye-alloy (42CrMo / SCM435 / 35CrMo) Izinga GB/T 5783 / ISO 4017 / DIN 933 Intambo Metric coarse (M), intambo egcwele Ukuphela Kwendawo I-black oxide Ububanzi Bentambo M6 – M64 (M64–M100 kuyatholakala ngokucela) Ubude 8 mm – 600 mm (kunwetshwa kufike ku-1,000 mm) Uhlobo Lwekhanda Ikhanda le-hexagon Izici Zemishini (ISO 898-1 / GB/T 3098.1) Isici Inani Amandla Okudabuka Okungenani (Rm) 1,220 MPa Amandla Okudabuka Ajwayelekile 1,200 MPa Amandla Okunikezela Okungenani (Rp0.2) 1,100 MPa Ingcindezi Yomthwalo Wobufakazi Okungenani (Sp) 970 MPa Ubulukhuni Bengaphakathi 39–44 HRC Ukweluleka Ngemuva Kokuphuka (A min) 8% Isimo Sempahla Siqinisiwe futhi silungisiwe ngokushisa Lawa manani ahambisana nezidingo ze-ISO 898-1 zezinga lempahla 12.9 zamabhawodi, ezicacisa amandla okudabuka okungenani angu-1,220 MPa namandla okunikezela okungenani angu-0.2% angu-1,100 MPa kosayizi ofika ku-M39. Impahla Nokwelashwa Ngokushisa Amabhawodi ezinga 12.9 ngokuvamile enziwa nge-alloy steel eqinisiwe futhi elungiswe ngokushisa njenge-42CrMo, SCM435, noma i-35CrMo. Nge-SCM435 steel, inqubo yokwelashwa ngokushisa elungiselelwe emelela iqukethe ukuqinisa ku-880 °C imizuzu engu-30 kulandele ukulungisa ngokushisa ku-500 °C imizuzu engu-60, okufinyelela izidingo zamandla nokuguquguquka kwamabhawodi ezinga 12.9. Izindinganiso Nokuhambisana Lawa mabhawodi akhiqizwa ngokuhambisana ne-GB/T 5783 (indinganiso kazwelonke yaseShayina yamabhawodi ekhanda le-hex anentambo egcwele, ehlanganisa i-M1.6–M64 nezinga lempahla kufike ku-12.9), futhi ngokobukhulu ayalingana ne-ISO 4017 ne-DIN 933. Ukumaka kwezinga 12.9 kugxivizwa ekhanda lebhawodi ukuze kubonakale futhi kulandeleke. Izinhlelo Zokusebenza Amabhawodi e-hex ezinga 12.9 acaciswa lapho kudingeka amandla aphezulu okubopha nokumelana nokukhathala. Izimboni ezijwayelekile zihlanganisa: Insimbi yesakhiwo nokwakhiwa kwamabhuloho Imishini yezitimela nezitimela ezinesivinini esiphezulu Izimayini nemishini esindayo Ukubopha injini ne-chassis yezimoto Amasistimu okufaka amandla omoya ne-photovoltaic Imishini kawoyela namakhemikhali Ukwakha imikhumbi nobunjiniyela basolwandle Ukufakwa Kwendawo Ukuphela okumnyama kwe-oxide okujwayelekile kunikeza ukuvikelwa okuncane ekugqwaleni nokubukeka okuhlanzekile, okugcina uwoyela. Ukuze kuthuthukiswe ukumelana nokugqwala, ezinye izindlela zokuphela ezifana nokufakwa kwe-zinc, ukufakwa kwe-nickel, noma i-Dacromet ziyatholakala ngokucela. Ngenxa yobulukhuni obuphezulu bamabhawodi ezinga 12.9 (39–44 HRC), ingozi yokuqhekeka kwe-hydrogen kufanele ilawulwe — uma kufakwa noma yikuphi ukufakwa nge-electroplating, ukwelashwa ngemuva kokufaka i-dehydrogenation kungakapheli amahora angu-24 kunconywa kakhulu.