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Hexagon Flange Bolts nwere mkpuchi Dacromet: Geometry, Usoro, Nrụmọrụ na Ntuziaka Mgbakọ
2026-10-26
1. Okwu mmalite
Flange bolts - hexagon isi bolts nwere flange agbakwunyere (ihu washer) nke etinyere n'ime isi - abụrụla ngwa ngwa ngwa n'ichepụta ụgbọ ala, mgbakọ igwe, na ịrụ ọkpọkọ. Site na ijikọta bolt na washer n'ime otu akụkụ, flange bolt na-eme ka mgbakọ dị mfe, na-ekesa ibu nkedo n'elu ebe a na-ebu ibu, ma na-eme ka iguzogide nkwụsị nke onwe ya n'okpuru ịma jijiji.
Na gburugburu ọrụ na-emebi emebi, Otú ọ dị, uru nke nhazi flange nwere ike ime ma ọ bụrụ na mkpuchi nke na-echebe bolt na-adị ndụ ma ọ bụrụhaala na nkwonkwo n'onwe ya. Dacromet (zinc-aluminom flake) mkpuchi apụtala dị ka usoro nchebe corrosion kachasị mma maka bolts flange dị elu, na-enye nguzogide nnu nnu ọtụtụ ugboro karịa electro-galvanizing na akụkụ dị nta nke ọkpụrụkpụ nke galvanizing na-ekpo ọkụ-na-enweghị ihe ize ndụ hydrogen embrittlement.
Edemede a na-akọwa geometry na ụkpụrụ nke hex flange bolts, na-akọwa usoro mkpuchi Dacromet ka etinyere ya na flange bolts, na-enye ntụnyere arụmọrụ na nkọwapụta ụdị, ma na-enye nhọrọ bara uru na ntuziaka mgbakọ.
2. Gịnị bụ Hex Flange Bolt?
Ihe mkpuchi hex flange bụ ihe mkpuchi isi hexagon nke isi ya na-ebu flange okirikiri dị n'elu elu, dịka ISO 4162 / DIN 6921 (metric) na ụkpụrụ usoro-inch yiri ya. Ezinụlọ imewe dị abụọ:
- Obere usoro flange- dayameta flange kọmpat maka oghere siri ike, nke a na-ahụkarị na injin ụgbọ ala;
- Usoro flange buru ibu (obosara).- ihe dị ka 1.5 × eri dayameta nke na-ebu elu, ejiri ebe a na-etinye ibu ibu dị elu ma ọ bụ ihe mgbochi dị nro (aluminom, plastik).
Ọtụtụ flange bolts na-egosipụtakwa serrations (eze radial) na flange n'okpuru. Serrations ahụ na-ata n'elu mating, na-abawanye nguzogide nke obere mmegharị ahụ ma na-emeziwanye ihe mgbochi ahụ maka ịtọpụ onwe ya n'okpuru mkpọtụ ntụgharị - na-enweghị mkpa mkpuchi mkpuchi dị iche.
3. Gịnị kpatara mkpuchi Dacromet maka Flange Bolts?
Ihe mkpuchi dacromet bụ slurry nke zinc na aluminom flakes nke nwere ihe ndị na-agafe agafe na ndị na-ekekọta inorganic. A na-etinye akụkụ ya n'ime, na-atụgharị na sentrifugal iji wepụ slurry gabiga ókè, wee gwọọ ya na 280-330 Celsius maka nkeji 20-40; okirikiri ntuba abụọ na-emepụta ihe nkiri 6-10 μm. Ihe mkpuchi flange dabara nke ọma na usoro ntinye-spin:
1.Mkpuchi zuru oke- mkpuchi na-asọba n'ime flange-to-shank fillet na serration grooves, ebe electroplating na-ahapụkarị mkpa ma ọ bụ oge nkwụnye ego;
2.Uniform ọkpụrụkpụ- centrifugal spinning na-enye ọbụna ihe nkiri n'ofe flange ihu ewepụghị, na-echebe ndị yiri ibu elu nke dị oké mkpa maka mwekota-ibu izi ezi;
3.Ọ dịghị hydrogen ebrittlement- enweghị acid pickling ma ọ bụ electrolytic ugbu a na-etinye aka, yabụ enwere ike kpuchie akara ule 10.9 na 12.9 n'enweghị nsogbu;
4.Thread ziri ezi- na mkpa, siri ike film na-echebe eri geometry, otú flange bolts ka na-agba ọsọ kpamkpam n'ime tapped oghere na mate na ọkọlọtọ flange akụ;
5.Friction agbanwe agbanwe- na akwa mkpuchi mmanụ agbakwunyere, Dacromet flange bolts na-enweta ihe ndị kwụsiri ike (K ≈ 0.12-0.16), dị mkpa maka ahịrị mgbakọ na-achịkwa torque.
4. Arụmọrụ na Mechanical Uru
Mpaghara na-ebu ibu na nrụgide elu
Uru nkọwapụta nke imepụta flange bụ nkesa ibu. Tebụlụ dị n'okpuru na-atụnyere ọkọlọtọ M10 hex bolt, bolt hex nwere igwe ịsa dị iche, yana M10 nnukwu bolt flange n'otu ibu mkpọ 30 kN.
| Nhazi Bolt | Na-ebu OD (ihe dị ka.) | Mpaghara ebu (mm²) | Nrụgide ihu na 30 kN (N/mm²) |
| Hex bolt DIN 933, enweghị ihe ncha | 14.5mm (ihu igwe ihe) | ≈ 78 | ≈ 385 |
| Hex bolt + flat wash DIN 125 | 20 mm | ≈ 166 | ≈ 181 |
| Hex flange bolt DIN 6921 | 21.5 mm | ≈ 208 | ≈ 144 |
Tebụl 1. Mpaghara na-ebu ibu na ntụnyere nrụgide elu (ihe atụ M10, ụkpụrụ ndị a na-ahụkarị).
Onyonyo 2. Nrụgide elu ala pụtara obere itinye n'ime ebe dị nro ma ọ bụ ihe osise na nkwonkwo siri ike ka oge na-aga.
Nrụgide elu dị ala na-ebelata ntinye (brinelling) n'ime aluminom ma ọ bụ ihe a na-ese ihe, na-eme ka nkwonkwo ahụ sie ike ka oge na-aga, ma na-ebelata ihe ize ndụ nke isi n'ime ihe dị nro. Na mgbakwunye, nnwale transverse-vibration nọọrọ onwe ya (Nnwale Junker, DIN 65151) na-egosikarị na bolts serrated na-ejigide ibu mwekota karịa ka bolts hex dị larịị nke otu ọkwa, n'ihi na serrations na-emechi interface nke na-ebu ya na flange sara mbara na-eguzogide ntụgharị isi.
