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ʻO Dacromet Flange Bolts
2026-07-23
ʻO Dacromet Flange Bolts
ʻO nā mea paʻa paʻa paʻa me ka Zinc-Aluminum Flake
Hoʻohui ʻia nā bolts flange Dacromet i ka hoʻolālā ʻana o ke poʻo flange puʻunaue me ka uhi ʻana o Dacromet zinc-aluminum flake. Hoʻololi ka flange hoʻohui i kahi mea holoi ʻokoʻa, aʻo ka uhi ʻana o Dacromet e hāʻawi i 500-1,200 mau hola o ka pale ʻana i ka paʻakai me ka ʻole o ka hydrogen embrittlement - kūpono no nā kaʻa, kūkulu, a me nā noi kai.
Mahele 1 — Flange Bolt
ʻO ka ʻūhā flange he poʻo poʻo hex me kahi flange like me ka mea holoi holoi ma ke kumu poʻo. Hāʻawi ka flange i ka ukana pipili ma kahi ākea, e hōʻemi ana i ke kaomi ʻili a pale i ka pōʻino i nā mea pili. Hoʻopau kēia i ka pono no kahi holoi ʻokoʻa, hoʻomaʻemaʻe i ka hui.
Nā mea nui
- Hāʻawi ʻia: Hoʻolaha ʻo Flange i ka ikaika hoʻopaʻa, e hōʻemi ana i ke koʻikoʻi o ka halihali ʻana a hiki i 50% i hoʻohālikelike ʻia me nā bolts hex maʻamau.
- Anti-loosening: Hāʻawi ke koho flange serrated i ke kūpaʻa haʻalulu i kūkulu ʻia me ka ʻole o ka laka ʻana i nā holoi holoi.
- Nā Kūlana: DIN 6921 / ISO 4162 / GB/T 5787; M6–M20; Papa 8.8 a me 10.9 no ISO 898-1.
- Mea Hana: ʻO ke kila kalapona (Papa 8.8) a i ʻole ke kila kila haʻahaʻa (Papa 10.9), kinai ʻia a hoʻomāmā.
Mahele 2 - ʻO Dacromet Coating
ʻO ka Dacromet kahi uhi wai, non-electrolytic o ka zinc a me nā flakes alumini i hoʻopaʻa ʻia e nā pūhui chromium. Hoʻohana ʻia ma o nā pōʻai dip-spin-cure ma 280–300°C, hāʻawi ia i ka pale corrosion ʻekolu-papa me ka ʻole hydrogen embrittlement.
Mechanism Palekana
- Ka palekana kaumaha: ʻOi aku ka maikaʻi o nā ʻōpala Zinc e pale aku i ke kila, ʻoiai ke ʻoki ʻia ka uhi.
- Keakea kino: Hoʻopaʻa nā flakes i ka makū, ka oxygen, a me nā ion corrosive.
- ʻO ka hoʻopalekana kemika: ʻO nā pūhui Chromium lohi i ka hoʻoheheʻe zinc a hoʻōla iā ia iho i nā micro-scratches.
Nā Pōmaikaʻi Nui
- ʻAʻohe hydrogen embrittlement: Ke kaʻina hana non-electrolytic - palekana no ka papa 8.8–10.9 mau kī ikaika kiʻekiʻe.
- ʻOi aku ka maikaʻi o ka corrosion resistance: 500–1,200 hola paʻakai paʻakai (ISO 9227), 5–10x ʻoi aku ka maikaʻi ma mua o ka hoʻoheheʻe zinc.
- Ka lahilahi & ʻaʻahu: Mālama ʻo 4–10 µm i ke kūpono o ka milo a me ka geometry flange. ʻAʻole pono ke paʻi hou.
- ʻAʻohe wela a me ka ʻoluʻolu: Kū i ka 250 ° C; ʻAʻohe Cr⁶⁺, kūpono i ka RoHS/REACH.
Hoʻohālikelike ʻili
| Waiwai | ʻO Dacromet | Hoʻopili Zinc | Hot-Dip Galv. |
| Paʻakai paʻakai (hrs) | 500 – 1,200 | 96 – 240 | 300 – 1,000 |
| Hoʻohāhā ʻana i ka waihā | ʻAʻohe | Pilikia (Gr. 10.9+) | ʻAʻohe |
| Mānoanoa uhi | 4 – 10 µm | 5 – 25 µm | 45 – 85 µm |
| Pilikia Uila | liʻiliʻi | Haʻahaʻa | Mea nui |
| Kū'ē wela | 250°C | 200°C | 250°C |
| Ka nana aku | Kahinahinahina, matte | Polū-keʻokeʻo | Alohilohi / spangled |
Hōʻuluʻulu manaʻo
Hāʻawi ʻo Dacromet flange bolts i kahi hui maikaʻi loa o ka pono mechanical a me ka pale corrosion. Hāʻawi ka flange integral i ka ukana a hoʻomaʻamaʻa i ka hui ʻana, ʻoiai ka Dacromet zinc-aluminum flake coating e hāʻawi i 500-1,200 mau hola o ka paʻakai paʻakai me ka ʻole o ka hydrogen embrittlement. Hoʻohana nui ʻia kēia mau mea paʻa i ka automotive, kūkulu, makani makani, a me nā noi kai kahi e pono ai ka hoʻopili pono ʻana a me ka lōʻihi lōʻihi.
