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Koeke Oxide Pango Whakamutunga Taurua
2026-07-21
Ko nga tiu 8.8 pango waikura pito-rua he tiu miro kaha waenga-te teitei e whakaatu ana i te miro ki nga pito e rua me te pokapu hiku kore miro. Ka whakakotahihia e ratou nga mahi miihini pono (800 MPa kaha kaha), te whakamarumaru o te waikura ohaoha ma te paninga whakahuri Fe3O4 angiangi, me te whakaurunga maha mo nga miihini ahumahi, miihini, me nga tono hanganga.
1. Kōeke 8.8 Whakarōpū
I runga i te ISO 898-1, ko te tohu "8.8" ko te kaha 800 MPa me te 0.8 (te kaha tuku 640 MPa). I hangaia mai i te rino waro waro kua tineia me te whakamaarama, ko te Tohu 8.8 he pai te toenga kaha-ki-te utu.
| Taonga | Uara | Taonga | Uara |
| Te Kaha Tana (Rm) | 800 MPa | Min. Te whakaroa | 12% |
| Kaha Tuku (ReL) | 640 MPa | Maama (HV) | 250-320 |
| Tohu Uta Awatea | 600 MPa | Te Kaha Paanga | 27 J |
Ripanga 1 — Ngā Āhuatanga Hangarau Matua (ISO 898-1)
2. Pango Oxide Mata maimoatanga
Ko te waikura pango (Fe3O4) he paninga huringa matū 0.5-1.5 micrometers te matotoru, i hangaia e te rumaki ki te pati pākawa kawakore wera i te 140-150C. Kare i rite ki te whakakikorua hiko, kare he huringa inenga, karekau he hauwai. Ina hiritia ki te hinu aukati waikura, ka tae ki te 96 haora te aukati rehu tote.
| Āhuahira | Whakaahuatanga |
| Matotoru paninga | 0.5-1.5 um — karekau he huringa ahu ki nga miro |
| Te Waihanga Atete | Tikanga (96 haora te rehu tote ina whakahinuhia) |
| Te ahua | He pango matte, he whakaotinga ngaio |
| Te Whakakorenga Hauwai | Karekau - karekau he whakakikorua hiko |
| Paemahana Ratonga Max | 250C tonu |
| Utu | Te iti rawa i waenga i nga paninga whakamarumaru noa |
Ripanga 2 — Nga Tikanga Whakakikorua Oxide Pango
3. Hoahoa Whakamutunga Taurua
He pito tap te pito-rua (kua werohia ki roto i te kohao tap) me te pito nati (ka whakaae ki te nati), ka wehea e te karekau miro. Ko te roanga o te tap he 1.0-1.5d me te pito nati 2.0-3.0d, ko te d ko te diameter ingoa.
| Rahi | Piki (mm) | Tap Whakamutunga | Nati Mutunga | Tainui 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 |
Ripanga 3 — Nga Whakatakotoranga Miro Inenga Taunoa
Ko nga tiu waikura pango 8.8 e whakarato ana i te whakakotahitanga tino pai o te kaha, ohaoha, me te whai kiko - ka pai ake te whiriwhiri puta noa i nga miihini whanui, miihini, hangahanga, me nga tono flange petrochemical.
Whakarāpopototanga
8.8 te karaehe-rua-mutunga tiu he here-kaha teitei me nga miro ki nga pito e rua me te tiu waenga. Mo te ISO 898-1: 800 MPa kaha kaha, 640 MPa hua, 250-320 HV pakeke. Ko te pito tap ka mau ki roto i te kohao kua paopaohia i te wa e taea ai e te pito o te nati te huihui tonu me te kore he kakahu miro. Ko nga whakakikorua e waatea ana ko te waikura pango, te whakakikorua konutea, te piauau wera-wera, me te Dacromet mo te whakamarumaru rereke rereke. He pai mo nga poraka miihini, te rino hanganga, te paipa paipa, me nga miihini ahumahi e hiahiatia ana te kaha reo-nui, te whakamahi hou, me te utu-pai.
