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Hexagon Flange Bolts ine Dacromet Coating: Geometry, Maitiro, Kuita uye Gungano Gungano
2026-10-26
1. Nhanganyaya
Flange mabhoti - hexagon musoro mabhaudhi ane flange yakabatanidzwa (washer chiso) yakavakirwa mumusoro - yave iyo yekumhanyisa yesarudzo mukugadzira mota, kusangana kwemichina, uye kuvaka pombi. Nekubatanidza bhaudhi newasher kuita chikamu chimwe chete, bhaudhi reflange rinorerutsa kuungana, kugovera kusungirira mutoro pamusoro penzvimbo yakakura inotakura, uye inovandudza kuramba kuzvisunungura pasi pekudengenyeka.
Munzvimbo dzinotyisa dzebasa, zvisinei, mabhenefiti ekugadzira flange anogona kungoonekwa chete kana iyo inodzivirira iyo inodzivirira bhaudhi ichirarama chero iyo yakabatana pachayo. Dacromet (zinc-aluminium flake) yakabuda seyakafarirwa corrosion-protection system yemabhaudhi ane simba repamusoro-soro, ichipa munyu wekupfapfaidza kakapetwa kanoverengeka kupfuura electro-galvanizing pachidimbu chehukobvu hwekupisa-dip galvanizing - uye pasina chero hydrogen embrittlement ngozi.
Ichi chinyorwa chinotsanangura iyo geometry uye zviyero zve hex flange mabhaudhi, inotsanangura iyo Dacromet yekupfekedza maitiro sekushandiswa kune flange mabhoti, inopa kuenzanisa kwekuita uye zvakajairwa kutsanangurwa, uye inopa inoshanda sarudzo uye kutungamira kwegungano.
2. Chii chinonzi Hex Flange Bolt?
A hex flange bhaudhi ihexagon musoro bhaudhi ine musoro unotakura wakakosha denderedzwa flange panzvimbo inotakura, pa ISO 4162 / DIN 6921 (metric) uye inofananidzwa inch-yakatevedzana zviyero. Mhuri mbiri dzekugadzira dziripo:
- Small flange series- compact flange dhayamita yenzvimbo dzakasimba, dzakajairika muinjini dzemotokari;
- Yakakura (yakafara) flange series- ingangoita 1.5 × shinda dhayamita inotakura pamusoro, inoshandiswa painotakura mitoro yepamusoro kana zvinyoro zvekusunga zvinhu (aluminium, mapurasitiki) zvinobatanidzwa.
Mazhinji flange mabhoti anowedzerawo serrations (mazino eradial) pane flange pasi. Iyo serrations inoruma munzvimbo yekusangana, ichiwedzera kuramba kune hukama diki-kufamba uye kunatsiridza kuramba kwebhaudhi kuti isunungure yega pasi pekutenderera kwemhepo - pasina kuda yakasarudzika yekukiyiwa washer.
3. Sei Dacromet Coating yeFlange Bolts?
Dacromet coating imvura-based slurry ye zinc uye aluminium flakes ine passivators uye inorganic binders. Zvikamu zvakanyungudutswa, centrifugally spun kubvisa slurry yakawandisa, uye inorapwa pa 280-330 ° C kwemaminitsi 20-40; maviri dip-spin cycles anowanzo buritsa 6-10 μm firimu. Flange mabhaudhi anonyanya kukodzera kune dip-spin maitiro:
1.Complete coverage- iyo yekuputira inoyerera ichipinda mune flange-ku-shank fillet uye serration grooves, nzvimbo uko electroplating inowanzosiya yakaonda kana isina kukwana deposits;
2.Uniform ukobvu- centrifugal spinning inopa kunyange mafirimu pakatarisana neflange flange kumeso, kuchengetedza inofananidzwa inotakura nzvimbo iyo yakakosha kune clamp-load kurongeka;
3.No hydrogen embrittlement- hapana asidi pickling kana electrolytic ikozvino inobatanidzwa, saka mamakisi 10.9 uye 12.9 anogona kuvharidzirwa zvakachengeteka;
4.Thread precision- iyo yakaonda, yakaoma firimu inochengetedza shinda geometry, saka mabhaudhi eflange achiri kumhanya akasununguka mumakomba akatemerwa uye mate neakajairwa flange nzungu;
5.Friction consistency- nemafuta akabatanidzwa etopcoats, Dacromet flange bolts inowana yakagadzikana nut factor (K ≈ 0.12-0.16), yakakosha kune torque-inodzorwa mitsetse yegungano.
4. Kuita uye Mechanical Advantages
Kutakura nzvimbo uye pamusoro pekumanikidza
Iyo inotsanangura mukana weiyo flange dhizaini ndeyekugovera mutoro. Tafura iri pazasi inoenzanisa yakajairwa M10 hex bhaudhi, bhaudhi yehekisi ine washer yakaparadzana, uye M10 hombe-flange bhaudhi pane imwecheteyo 30 kN clamp load.
| Bolt configuration | Kutakura OD (approx.) | Nzvimbo yekutakura (mm²) | Kudzvanywa kwepamusoro pa30 kN (N/mm²) |
| Hex bolt DIN 933, hapana washer | 14.5 mm (washer chiso) | ≈ 78 | ≈ 385 |
| Hex bolt + flat washer DIN 125 | 20 mm | ≈ 166 | ≈ 181 |
| Hex flange bhaudhi DIN 6921 | 21.5 mm | ≈ 208 | ≈ 144 |
Tafura 1. Nzvimbo yekutakura uye kuenzanisa kwepamusoro (M10 muenzaniso, maitiro akajairika).
Mufananidzo 2. Kudzikira kwepasi kunoreva kunyudza kupinda munzvimbo dzakapfava kana dzakapendwa uye mubatanidzwa wakaoma nekufamba kwenguva.
Kudzikira kwepasi pevhu kunoderedza kupinza (brinelling) muaruminiyamu kana pendi nzvimbo, inoita kuti mubatanidzwa wakasungirirwa urambe wakaoma nekufamba kwenguva, uye inoderedza njodzi yekunyura kwemusoro mumidziyo yakapfava. Pamusoro pezvo, yakazvimiririra transverse-vibration bvunzo (Junker bvunzo, DIN 65151) inogara ichiratidza kuti serrated flange mabhaudhi anochengeta zvakanyanya kusungirira kuremerwa kupfuura plain hex mabhaudhi egiredhi rimwechete, nekuti serrations inokiya iyo inotakura interface uye yakafara flange inoramba kutenderera kwemusoro.
