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Dacromet Flange Bolts
2026-07-23
Dacromet Flange Bolts
Anti-Corrosion Flange Fasteners neZinc-Aluminium Flake Coating
Dacromet flange mabhoti anosanganisa mutoro-kugovera flange musoro dhizaini neDacromet zinc-aluminium flake coating. Iyo yakakosha flange inotsiva washer yakaparadzana, nepo Dacromet coating ichiburitsa 500-1,200 maawa emunyu wekupfapfaidza kuramba pasina hydrogen embrittlement - yakanakira mota, kuvaka, uye kushandiswa kwemugungwa.
Chikamu 1 - Flange Bolt
A flange bhaudhi ihekisi musoro bhaudhi ine yakabatanidzwa washer-senge flange pazasi pemusoro. Iyo flange inogovera clamping mutoro pamusoro penzvimbo yakafara, ichideredza kudzvanywa kwepamusoro uye kudzivirira kukuvadzwa kwezvinhu zvakabatana. Izvi zvinobvisa kudiwa kwewasher yakasiyana, kurerutsa gungano.
Key Features
- Kugoverwa kwekutakura: Flange inoparadzira clamping simba, ichidzikisa kubereka kushushikana nekusvika 50% zvichienzaniswa neyakajairwa hex mabhaudhi.
- Anti-kusunungura: Serrated flange sarudzo inopa yakavakirwa-mukati vibration kuramba pasina kuvhara washer.
- Maitiro: DIN 6921 / ISO 4162 / GB/T 5787; M6–M20; Giredhi 8.8 uye 10.9 pa ISO 898-1.
- Zvekushandisa: Carbon simbi (Grade 8.8) kana yakaderera-alloy simbi (Grade 10.9), kudzimwa uye hasha.
Chikamu 2 - Dacromet Coating
Dacromet imvura-yakavakirwa, isiri-electrolytic coating yeinoputika zinc uye aluminium flakes inosungirirwa nechromium compounds. Inoshandiswa kuburikidza ne dip-spin-cure cycles pa 280-300 ° C, inopa matatu-layer corrosion dziviriro pasina hydrogen embrittlement.
Dziviriro Mechanism
- Kudzivirirwa kwechibairo: Zinc flakes corrode zviri nani kuchengetedza simbi, kunyangwe kana kupfeka kuchikwenywa.
- Chipingamupinyi chemuviri: Mafuraki akaputirana anovharira hunyoro, okisijeni, uye maion anoparadza.
- Chemical passivation: Chromium inogadzira inononoka kunyungudika zinc uye kuzvirapa diki diki.
Hunhu Hunokosha
- Hapana hydrogen embrittlement: Non-electrolytic process - yakachengeteka yeGrade 8.8-10.9 high-simba mabhaudhi.
- Superior corrosion resistance: 500–1,200 hrs munyu pfapfaidzo (ISO 9227), 5–10x zviri nani pane zinc plating.
- Thin & uniform: 4–10 µm inochengetedza shinda yakakodzera uye flange geometry. No re-tapping inodiwa.
- Inodzivirira kupisa uye eco-hushamwari: Inomira 250 ° C; Cr⁶⁺-yemahara, RoHS/REACH inoenderana.
Coating Kuenzanisa
| Property | Dacromet | Zinc Plating | Hot-Dip Galv. |
| Kupfapfaidza munyu (maawa) | 500 - 1,200 | 96 – 240 | 300 - 1,000 |
| Hydrogen Embrittlement | Hapana | Ngozi (Gr. 10.9+) | Hapana |
| Coating Ukobvu | 4 – 10 µm | 5 – 25 µm | 45 - 85 µm |
| Thread Fit Impact | Minimal | Low | Chinokosha |
| Heat Resistance | 250°C | 200°C | 250°C |
| Chitarisiko | Sirivha-grey, matte | Bhuruu-chena | Bright / spangled |
Summary
Dacromet flange mabhoti anopa musanganiswa wakakwana wemakanika kushanda zvakanaka uye kudzivirira ngura. Iyo yakakosha flange inogovera mutoro uye kurerutsa kusangana, nepo Dacromet zinc-aluminum flake coating inopa 500-1,200 maawa emunyu wekupfapfaidza kuramba pasina hydrogen embrittlement. Aya ma fasteners anoshandiswa zvakanyanya mumotokari, kuvaka, simba remhepo, uye zvikumbiro zvemugungwa uko kwakavimbika clamping uye kusimba kwenguva refu kwakakosha.
