Dacromet-Yashizwemo Flange Bolts hamwe nimbuto za Flange

2026-10-29

1. Intangiriro

Dacromet-Yashizwemo Flange Bolts hamwe nimbuto za Flange

Igice cyose cyahinduwe kirakomeye gusa nkumufatanyabikorwa wacyo udakomeye. Imbaraga-ndende ya flange bolt ihujwe nimbuto zisanzwe zidakingiwe zirema a couple ya galvanic, umutego wo kwangirika, hamwe nigihe kizaza cyananiranye. Iyi ngingo itangiza couple ihuye - Dacromet-isize flange bolts (hex bolts hamwe na flange yibice munsi yumutwe) na Dacromet-isize flange nuts .

Ipitingi ya Dacromet - inzira ya electrolytike zinc-flake isobanurwa na ISO 10683 na ASTM F1136 - itanga amasaha 700 kugeza 1.000 yumunyu wo kurwanya umunyu (ASTM B117 spray yumunyu utabogamye, NSS) kubanza ingese itukura, muri firime yoroheje ya 8-12 mm, hamwe na hydrogène ibyago. Gukoreshwa buri gihe kuri bolt na ibinyomoro, birinda sisitemu yose ifatanye: sisitemu yo hejuru, isura ya flange, hamwe nu mutwaro utwara imitwe yimbere ninyuma.

2. Ibice bibiri

2.1 Hex flange bolts

Hex flange bolt ni umutambiko wa hexagon hamwe na flangine izengurutswe (yubatswe mu maso yogejwe) hejuru yumutwe wumutwe, usanzwe muri ISO 4162 / DIN 6921 na GB / T 5789 / GB / T 16674. Ibishushanyo mbonera birimo:

Urutonde ruto- igikoresho gifatika cya diametre ahantu hafungiwe;
Urukurikirane runini (rugari)- gutwara diameter ya 1.5 × d, igabanya umuvuduko wubutaka munsi yumutwe kandi ikagabanya kwinjiza mubikoresho byoroshye nka aluminium;
Ikibaho- amenyo ya radiyo kumurongo wa flange munsi aruma hejuru yiziritse, byongera imbaraga zo guhangana na vibrasiya-iterwa no kwikuramo ubusa nta gukaraba gufunze.

3. Impamvu Sisitemu ihuye ningirakamaro yo kurwanya ruswa

Zinc-flake-itwikiriwe na bolt yiruka mubutaka bwambaye ubusa cyangwa amashanyarazi yashizwemo a couple ya galvanic: ibice bibiri bidasa bihuye na electrolyte (imvura, kondegene, umunyu wo mumuhanda). Ubuso buke butagaragara neza, butanga umusaruro ingese (ibicuruzwa bya okiside ya zinc) hanyuma amaherezo ingese itukura (base-ibyuma byangirika) ahantu nyaburanga cyane - insanganyamatsiko zitwara preload. Gupfundikanya bolt na nut hamwe na sisitemu imwe ya Dacromet binganya ubushobozi bwo kwangirika kandi bikuraho imbaraga zo gutera ibitero bya galvanic.

Inzira ya Dacromet ntabwo irimo gufata aside kandi nta mashanyarazi ya electrolytike, bityo rero nta hydrogène ya atome yinjizwa mubyuma. Ibi bituma ihitamo bisanzwe kumbaraga zikomeye za flange bolts hamwe nimbuto zumutungo wicyiciro cyumutungo 10.9 na 12.9, aho hydrogène embrittlement (HE) yananiwe kwizirika amashanyarazi ni ibyago byanditse.

4. Kugereranya imikorere

Sisitemu yo gutwikira (bolt + nut, icyiciro 8.8)	Ubunini busanzwe	Umunyu utera ingese	Gutera umunyu ingese zitukura (NSS)	Hydrogen
Amashanyarazi ya Zn5	5 mm	≈ 24 h	≈ 72–96 h	Ibyago byinshi
Amashanyarazi ya Zn12	12 mm	≈ 72 h	≈ 192 h	Ibyago byinshi
Gukoresha imashini	25-40 mm	≈ 96 h	≈ 400-500 h	Hasi
Ashyushye cyane	45-85 mm	—	20 720 h	Hasi; insanganyamatsiko zikeneye kongera gukanda, ibinyomoro birenze
Dacromet DAC 320 (Icyiciro cya 2)	8 mm	≈ 240 h	20 720 h	Mubyukuri ntayo
Dacromet DAC 500 / umukara	10-12 mm	≈ 480 h	≈ 1.000 h	Mubyukuri ntayo

Iyindi nyungu yo guterana: imbuto zishyushye zishyushye zigomba gukoreshwa hejuru cyane, ibyo bikaba bigabanya agace kogosha neza, mugihe Dacromet yometse kuri flange nuts igumana ubuziranenge 6H kwihanganira insanganyamatsiko n'imbaraga zuzuye - firime yoroheje, ikomeye irinda urudodo rukwiye, bityo bolts na nuts ziterana mubwisanzure hamwe no guterana amagambo kandi oya galling Bya hejuru.

5. Umwanzuro

Dacromet isize flange bolts hamwe nimbuto za flange bigize sisitemu yo gufunga imashini: geometrie ya flange ikwirakwiza umutwaro wa clamp, igabanya ihindagurika ryinyeganyeza, ikanakuraho abamesa batandukanye, mugihe flake ya zinc-aluminiyumu ihuye nabanyamuryango bombi irinda abashakanye galvanic, ikanashyira ingese zumucyo mwinshi hamwe na hydrogène itukura kumasaha 700-1. Itegeko rimwe ryingenzi risobanutse risigaye: tegeka ibihindu hamwe nutubuto nka kimwe gihuye, sisitemu irinzwe.

Ntugire. Ibikurikira.

Amakuru agezweho