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Ibanga Elimnyama Le-oksidi Eliphindwe Kabili
2026-07-21
Ibanga lesi-8.8 le-oxide elimnyama eline-double-end studs yizigxivizo ezinentambo ezinamandla aphezulu afaka intambo kuzo zombili iziphetho ezinesikhungo se-shank esingafundiwe. Bahlanganisa ukusebenza okuthembekile kwemishini (amandla aqinile angama-800 MPa), ukuvikela ukugqwala okongayo nge-Fe3O4 conversion coating, kanye nokufakwa okuguquguqukayo kwemishini yezimboni, yezimoto, nezinhlelo zokusebenza zesakhiwo.
1. Ukuhlelwa kweBanga 8.8
Ngokwe-ISO 898-1, igama elithi "8.8" lisho amandla aqinile angama-800 MPa kanye nesilinganiso somkhiqizo esingu-0.8 (amandla esivuno angu-640 MPa). Ekhiqizwe ngensimbi ye-carbon alloy ephakathi nendawo ne-quenched-tempered medium, iBanga 8.8 linikeza ibhalansi yamandla ezindleko ezinhle kakhulu.
| Impahla | Inani | Impahla | Inani |
| Amandla Okuqina (Rm) | 800 MPa | Okuncane. Ukwelula | 12% |
| Amandla Okukhiqiza (ReL) | 640 MPa | Ukuqina (HV) | 250-320 |
| Ubufakazi Bomthwalo Wengcindezi | 600 MPa | Impact Toughness | 27 J |
Ithebula 1 — Izakhiwo Zemishini Ebalulekile (ISO 898-1)
2. I-Black oxide Surface Ukwelashwa
I-Black oxide (i-Fe3O4) i-chemical conversion coating 0.5-1.5 micrometers obukhulu, eyakhiwe ngokucwiliswa emanzini okugeza e-alkaline nitrate ku-140-150C. Ngokungafani ne-electroplating, akubangeli ushintsho lwe-dimensional futhi akukho embrittlement ye-hydrogen. Uma ivalwe ngamafutha okuvimbela ukugqwala, ihlinzeka ngamahora angama-96 wokumelana nesifutho sikasawoti.
| Isici | Incazelo |
| Ukuqina Kokunamathela | 0.5-1.5 um - akukho ukuguqulwa kwe-dimensional emicu |
| Ukumelana Nokugqwala | Okumaphakathi (amahora angama-96 fafaza usawoti uma ugcotshwe ngamafutha) |
| Ukubukeka | Umbala ofanayo omnyama, isiphetho sobuchwepheshe |
| I-Hydrogen Embrittlement | Akukho - akukho electroplating ehilelekile |
| Izinga Lokushisa Lesevisi Eliphezulu | 250C okuqhubekayo |
| Izindleko | Okuphansi kakhulu phakathi kwezingubo zokuzivikela ezivamile |
Ithebula 2 - Izakhiwo Zokuhlanganisa I-Oxide Emnyama
3. I-Double-End Stud Design
I-stud enamaphethelo amabili inomkhawulo kampompi (osikulufelwe embotsheni ecindezelweyo) kanye nesiphetho samantongomane (emukela inati), ehlukaniswe i-shank engafundiwe. Ubude bokuphela kompompi ngokuvamile buba ngu-1.0-1.5d kanye nenathi ligcina u-2.0-3.0d, lapho u-d engububanzi obujwayelekile.
| Usayizi | Iphimbo (mm) | Thepha okuthi End | Nut End | Sekukonke u-L (mm) | Shank dia. (mm) |
| M8 | 1.25 | 1.0d | 2.0d | 50-120 | 8.0 |
| M10 | 1.5 | 1.25d | 2.0d | 60-150 | 10.0 |
| M12 | 1.75 | 1.25d | 2.5d | 70-200 | 12.0 |
| M16 | 2.0 | 1.25d | 2.5d | 80-250 | 16.0 |
| M20 | 2.5 | 1.5d | 3.0d | 100-300 | 20.0 |
Ithebula 3 - Imininingwane Ejwayelekile Ye-Metric Thread
Ibanga lesi-8.8 le-black oxide ene-double-end studs inikeza inhlanganisela efanele yamandla, umnotho, kanye nokuguquguquka - okuyenza ibe yinketho ekhethwayo kuyo yonke imishini evamile, yezimoto, yokwakha, ne-petrochemical flange.
Isifinyezo
Izikhonkwane ezine-double-end yebanga lesi-8.8 ziyizixhumi ezinamandla ezinezintambo kuzo zombili iziphetho kanye ne-shank ephakathi. Ngokwe-ISO 898-1: 800 MPa amandla aqinile, 640 MPa isivuno, 250-320 HV ubulukhuni. Isiphetho sikampompi sibambelela embobeni ethenjiwe kuyilapho isiphetho samantongomane sivumela ukuhlanganisa okuphindaphindiwe ngaphandle kokuguga kwentambo eyisisekelo. Izingubo ezitholakalayo zihlanganisa i-black oxide, i-zinc plating, i-hot-dip galvanizing, ne-Dacromet yokuvikela ukugqwala okuhlukahlukene. Ilungele amabhulokhi enjini, insimbi yesakhiwo, amapayipi amapayipi, nemishini yezimboni lapho amandla aphakathi nendawo, ukusebenziseka kabusha, kanye nokusebenza kahle kwezindleko kudingeka.
