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Dacromet Flange Bolts
2026-07-23
Dacromet Flange Bolts
Mgbochi mgbochi corrosion Flange fasteners nwere Zinc-Aluminium flake mkpuchi
Dacromet flange bolts na-ejikọta atụmatụ isi flange na-ekesa ibu na mkpuchi Dacromet zinc-aluminom flake. Flange dị n'ime ya na-edochi igwe dị iche iche, ebe mkpuchi Dacromet na-ewepụta awa 500-1,200 nke nguzogide nnu nnu na-enweghị embrittlement hydrogen - dị mma maka ụgbọ ala, ihe owuwu na ngwa mmiri.
Nkebi nke 1 - Flange Bolt
Ihe mkpuchi flange bụ ihe mkpuchi isi hex nwere flange dị ka flange agbakwunyere na isi isi. Flange ahụ na-ekesa ibu nkedo n'elu ebe sara mbara, na-ebelata nrụgide elu na igbochi mmebi nke ihe ejikọrọ. Nke a na-ewepụ mkpa maka ihe nhicha dị iche, mgbakọ na-eme ka ọ dị mfe.
Atụmatụ igodo
- Ibu nkesa: Flange na-agbasa ike njigide, na-ebelata nrụgide ibu ihe ruru 50% ma e jiri ya tụnyere bolts hex ọkọlọtọ.
- Mgbochi atọpụ: Nhọrọ flange serrated na-enye nguzogide ịma jijiji na-enweghị mkpọchi mkpuchi.
- Ụkpụrụ: DIN 6921 / ISO 4162 / GB/T 5787; M6–M20; Ọkwa 8.8 na 10.9 kwa ISO 898-1.
- Akụrụngwa: Carbon ígwè (ọkwa 8.8) ma ọ bụ obere alloy ígwè (ọkwa 10.9), emenyụ na iwe.
Nkebi nke 2 - mkpuchi Dacromet
Dacromet bụ mkpuchi mmiri na-abụghị nke electrolytic nke zinc na flakes aluminom jikọtara ya na ogige chromium. Tinyere ya site na okirikiri dip-spin-cure cycles na 280-300 Celsius, ọ na-enye nchebe corrosion nke oyi akwa atọ na-enweghị mgbaka hydrogen.
Usoro nchekwa
- Nchedo ịchụ àjà: Zinc flakes na-emebi emebi nke ọma iji chebe ígwè, ọbụlagodi mgbe a na-akpụcha mkpuchi.
- Ihe mgbochi anụ ahụ: Flakes na-agbakọta na-egbochi mmiri, oxygen, na ion na-emebi emebi.
- ngafe kemịkalụ: Ngwakọta chromium na-eme ka mgbaze zinc na-agwọ onwe ya ma na-agwọ onwe ya micro-scratches.
Uru ndị bụ isi
- Enweghị mmiri mmiri hydrogen: Usoro na-abụghị electrolytic - nchekwa maka ọkwa 8.8-10.9 elu-ike bolts.
- Nguzogide corrosion kacha elu: Nnu nnu 500-1,200 elekere (ISO 9227), 5-10x dị mma karịa ịkwanye zinc.
- Mkpa & uwe: 4–10 µm na-echekwa eri dabara na geometry flange. Ọnweghị ịpịgharị ọzọ achọrọ.
- Okpomọkụ na-eguzogide na gburugburu ebe obibi: Na-eguzogide 250 ° C; Cr⁶⁺ n'efu, RoHS/REACH kwadoro.
Ntụnyere mkpuchi
| Ngwongwo | Dacromet | Zinc Plating | Hot-Dip Galv. |
| Mgbasa nnu (awa elekere) | 500 - 1,200 | 96-240 | 300 - 1,000 |
| Embrittlement hydrogen | Ọ dịghị | Ihe ize ndụ (Gr. 10.9+) | Ọ dịghị |
| Mkpuchi Ọkpụrụkpụ | 4-10 µm | 5-25 µm | 45-85 µm |
| Mmetụta dabara adaba | Opekempe | Dị ala | Dị mkpa |
| Okpomọkụ Nguzogide | 250°C | 200°C | 250°C |
| Ọdịdị | Silver-agba ntụ, matte | Blue-ọcha | Na-egbuke egbuke / spangled |
Nchịkọta
Dacromet flange bolts na-enye ngwakọta kachasị mma nke arụmọrụ igwe yana nchebe corrosion. Flange dị n'ime ya na-ekesa ibu ma na-eme ka mgbakọ dị mfe, ebe mkpuchi Dacromet zinc-aluminom flake na-ebufe 500-1,200 awa nke nguzogide nnu na-enweghị hydrogen embrittlement. A na-eji ihe nkedo ndị a n'ọtụtụ ebe na ụgbọ ala, ihe owuwu, ike ikuku, na ngwa mmiri ebe njigide a pụrụ ịdabere na ya na ịdịte aka ogologo oge dị mkpa.
