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Dacromet Flange Bolts
2026-07-23
Dacromet Flange Bolts
Anti-Corrosion Flange Fasteners okhala ndi Zinc-Aluminium Flake Coating
Maboti a Dacromet flange amaphatikiza kapangidwe ka mutu wogawira katundu ndi Dacromet zinc-aluminium flake zokutira. Flange yophatikizika imalowa m'malo ochapira osiyana, pomwe zokutira za Dacromet zimapereka maola 500-1,200 osakanizidwa ndi kupopera mchere popanda hydrogen embrittlement - yabwino pamagalimoto, zomangamanga, ndi ntchito zam'madzi.
Gawo 1 - Flange Bolt
Bawuti ya flange ndi bawuti yamutu ya hex yokhala ndi cholumikizira chophatikizika ngati washer pamutu pake. Flange imagawira katundu wothimbirira pamalo okulirapo, kuchepetsa kuthamanga kwamtunda ndikuletsa kuwonongeka kwa zida zolumikizidwa. Izi zimathetsa kufunika kwa makina ochapira osiyana, ophweka.
Zofunika Kwambiri
- Kugawa katundu: Flange imafalitsa mphamvu yolumikizira, kuchepetsa kupsinjika mpaka 50% poyerekeza ndi ma bolt wamba a hex.
- Anti-kumasula: Njira ya Serrated flange imapereka kukana kugwedezeka kokhazikika popanda kutseka ma washer.
- Miyezo: DIN 6921 / ISO 4162 / GB/T 5787; M6–M20; Giredi 8.8 ndi 10.9 pa ISO 898-1.
- Zida: Chitsulo cha carbon (Giredi 8.8) kapena chitsulo chochepa cha alloy (Grade 10.9), chozimitsidwa ndi kupsya mtima.
Gawo 2 - Kupaka kwa Dacromet
Dacromet ndi zokutira zamadzi, zopanda electrolytic za zinc ndi aluminium flakes zomangika zomwe zimagwirizanitsidwa ndi mankhwala a chromium. Imagwiritsidwa ntchito mozungulira dip-spin-cure pa 280-300 ° C, imapereka chitetezo chambiri chamitundu itatu popanda hydrogen embrittlement.
Chitetezo Njira
- Chitetezo chachitetezo: Zinc flakes zimawononga makamaka kuteteza chitsulo, ngakhale zokutira zikande.
- Chotchinga pathupi: Ma flakes ophatikizika amalepheretsa chinyezi, oxygen, ndi ma ion owononga.
- Chemical passivation: Chromium imaphatikizira kusungunuka kwa zinki pang'onopang'ono ndikudzichiritsa tokha.
Ubwino waukulu
- Palibe hydrogen embrittlement: Njira yopanda electrolytic - yotetezeka ku Giredi 8.8-10.9 ma bawuti amphamvu kwambiri.
- Superior corrosion resistance: Kupopera mchere kwa maola 500–1,200 (ISO 9227), 5–10x bwino kuposa plating ya zinki.
- Woonda & yunifolomu: 4–10 µm imasunga ulusi wokwanira ndi geometry ya flange. Palibe kugogodanso kofunikira.
- Zosagwirizana ndi kutentha komanso zachilengedwe: Kupirira 250 ° C; Cr⁶⁺-yaulere, RoHS/REACH imagwirizana.
Coating Kufananiza
| Katundu | Dacromet | Zinc Plating | Hot-Dip Galv. |
| Kupopera mchere (maola) | 500 - 1,200 | 96-240 | 300 - 1,000 |
| Kuchuluka kwa Hydrogen | Palibe | Kuopsa (Gr. 10.9+) | Palibe |
| Kupaka makulidwe | 4 - 10 μm | 5 - 25 μm | 45 - 85 μm |
| Thread Fit Impact | Zochepa | Zochepa | Zofunika |
| Kukaniza Kutentha | 250 ° C | 200 ° C | 250 ° C |
| Maonekedwe | Silver-grey, matte | Buluu-woyera | Zowala / zopindika |
Chidule
Maboti a Dacromet flange amapereka kuphatikiza koyenera kwamakina ndi chitetezo cha dzimbiri. Flange yophatikizika imagawira katundu ndikupangitsa kuti ikhale yosavuta, pomwe Dacromet zinc-aluminium flake zokutira imapereka maola 500-1,200 akukaniza kutsitsi kwa mchere popanda hydrogen embrittlement. Zomangamangazi zimagwiritsidwa ntchito kwambiri pamagalimoto, zomangamanga, mphamvu zamphepo, ndi ntchito zam'madzi komwe kulimba kodalirika komanso kukhazikika kwanthawi yayitali ndikofunikira.
