Kukhona izinto ezintathu ezibalulekile zamabhawodi ebanga le-12.9 (12.9 ihange le-wedge, 12.9 ngokusebenzisa ibhawudi): ihange le-carbon steel wedge, ihange lensimbi engagqwali, nethusi.
(1) Insimbi yekhabhoni (njengeI-carbon steel Wedge Anchor Bolts). Sihlukanisa insimbi ye-carbon ephansi, insimbi ye-carbon steel, i-carbon steel ephezulu ne-alloy steel ngokusekelwe kokuqukethwe kwekhabhoni ku-carbon steel material.
1. Insimbi ye-carbon ephansi ene-C% <0.25% ivame ukubizwa nge-A3 steel e-China. Kwamanye amazwe, ngokuyisisekelo zibizwa ngokuthi 1008, 1015, 1018, 1022, njll.
2. Insimbi ye-carbon emaphakathi 0.25%
Insimbi ye-alloy: Faka izakhi zengxubevange ensimbi ye-carbon evamile ukuze kwandiswe izici ezithile ezikhethekile zensimbi: njenge-35, 40 chromium silver, SCM435
3. 10B38. Izikulufu ze-Fangsheng zisebenzisa kakhulu i-SCM435 chromium-platinum alloy steel, izingxenye zayo eziyinhloko ezingu-C, Si, Mn, P, S, Cr, kanye ne-Mo.
(2) Insimbi engagqwali (njengemicu yensimbi engagqwali). Ibanga lokusebenza: 45, 50, 60, 70, 80, ikakhulukazi i-austenite (18%Cr, 8%Ni), ukumelana nokushisa okuhle
Ukumelana nokugqwala okuhle kanye nokushisela okuhle. I-A1, i-A2, i-A4 martensite ne-13% Cr inokumelana nokugqwala okungekuhle, amandla aphezulu kanye nokumelana nokugqokwa okuhle. C1,C
2. C4 ferritic insimbi engagqwali. I-18% Cr inokufogeka okungcono nokumelana nokugqwala okuqinile kune-martensite. Njengamanje, izinto ezithunyelwa kwamanye amazwe emakethe zenziwa ikakhulukazi eJapan.
Nambitha. Ngokwezinga, ihlukaniswe ikakhulukazi i-SUS302, SUS304 kanye ne-SUS316.
3) Ithusi. Izinto ezisetshenziswa kakhulu ithusi…i-zinc-copper alloy. I-H62, H65, ne-H68 yethusi isetshenziswa kakhulu njengezingxenye ezijwayelekile emakethe.
12.9 Umthelela wezinto ezahlukahlukene ezintweni zebhawodi ezakhiweni zensimbi:
1. Ikhabhoni (C): Ithuthukisa amandla ezingxenye zensimbi, ikakhulukazi izakhiwo zayo zokwelapha ukushisa, kodwa njengoba okuqukethwe kwekhabhoni kwanda, ipulasitiki nokuqina kuyehla.
Futhi kuzothinta ukusebenza kwe-welding ebandayo nokusebenza kwe-welding yezingxenye zensimbi.
2. IManganese (Mn): Ithuthukisa amandla ezingxenye zensimbi futhi ithuthukise ukuqina ngokwezinga elithile. Okusho ukuthi, ukuqina kokungena kanzima kuyanda ngesikhathi sokukhiqizwa komlilo.
Ingase futhi ithuthukise ikhwalithi yendawo, kodwa i-manganese eningi ilimaza i-ductility kanye nokushisela. Futhi kuzothinta ukulawulwa kokugqoka ngesikhathi se-electroplating.
3. I-Nickel (Ni): Ithuthukisa amandla ezingxenye zensimbi, ithuthukisa ukuqina emazingeni okushisa aphansi, ithuthukisa ukumelana nokugqwala komkhathi, futhi iqinisekisa ukwelashwa okuzinzile
Umphumela wokwelapha uwukunciphisa umphumela we-hydrogen embrittlement.
4. I-Chromium (Cr): Ingathuthukisa ukuqina, ithuthukise ukumelana nokuguga, ithuthukise ukumelana nokugqwala, futhi isize ukugcina amandla emazingeni okushisa aphezulu.
5. (Mo): Kungasiza ukulawula ukukhiqiza, ukunciphisa ukuzwela kwensimbi ukuze kuthukutheliswe i-brittleness, futhi idlale indima ebalulekile ekuthuthukiseni amandla okuqina emazingeni okushisa aphezulu.
Umthelela omkhulu.
6. I-Boron (B): Ingathuthukisa ukuqina futhi isize ukwenza insimbi ye-carbon ephansi ikhiqize impendulo elindelekile ekwelapheni ukushisa.
7. I-Alum (V): icolisa okusanhlamvu kwe-austenite futhi ithuthukisa ukuqina
8. I-Silicon (Si): Iqinisekisa amandla ezingxenye zensimbi. Okuqukethwe okufanele kungathuthukisa ipulasitiki nokuqina kwezingxenye zensimbi.
Insimbi engu-35CrMo iyinto enhle kakhulu yamabholithi enjini axhumayo ebanga le-129 futhi ingahlangabezana nezidingo zempahla eyimishini yebanga le-12.9.
Kuyinqubo engenzeka yokwamukela ukwelashwa kokushisa kokuvikela i-nitrogen kumabhawodi enduku yokuxhuma ebangeni elingu-12.9, ukuncishiswa nokupholisa ingxenye yenduku, kanye nokugingqelwa kwentambo ngemva kokwelashwa kokushisa, futhi ingakhiqizwa.
Khiqiza amabhawodi ekhwalithi ephezulu, anembe kakhulu
Amamaki okusebenza amabhawodi asetshenziselwa ukuxhumana kwesakhiwo sensimbi ahlukaniswe ngamamaki angaphezu kuka-10 afana no-3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, no-12.9.
Phakathi kwazo, amabhawodi ebanga lesi-8.8 nangaphezulu enziwe ngensimbi ephansi ye-carbon alloy noma i-medium carbon steel futhi aphathwe ngokushisa (acinywe futhi anolaka), aziwa ngokuthi amabhawudo anamandla aphezulu.
Ezinye zivame ukubizwa ngokuthi amabhawudi ajwayelekile. Ilebula yebanga lokusebenza yebhawodi iqukethe izingxenye ezimbili zezinombolo, ezimele inani lamandla aqinile wento yebhawodi kanye
Isilinganiso sokuqina kwesivuno. Isibonelo, ibhawudi elinezinga lokusebenza 4.6 lisho:
1. Amandla okuzisholo okuqinile wento yebhawodi afinyelela ku-400MPa;
Isilinganiso samandla esivuno sento yebhawodi singu-0.6:
2. Amandla okuvunwa okuzisholo wento yebhawodi afinyelela ku-400×0.6=240MPa izinga lokusebenza 10.9 amabhawodi anamandla aphezulu. Into ishisiwe
3. Ngemva kokucubungula, ingafinyelela:
1. Impahla yebhawodi inamandla okuzisholo we-tensile angu-1000MPa.
2. Isilinganiso sokuvunwa kuya kumandla wento yebhawodi ngu-0.9:
3. Amandla okukhiqiza ajwayelekile wento yebhawodi afinyelela ku-1000×0.9=900MPa ezingeni
Izikulufu zebanga elingu-10.9 zidinga ukucisha insimbi ye-carbon alloy kanye nokwelashwa kokushisa okushisayo, okufana ne-35CRMO 40CR nezinye izinto
Inkomba yokuhlolwa kwebanga lebhawodi amandla aqinile webhawodi. Ayikwenzi'kungakhathaliseki ukuthi iyiphi impahla, yini'Okubalulekile izinkomba zemishini ezifana namandla aqinile
Isikhathi sokuthumela: Apr-16-2024