Dacromet-Wokutidwa ndi Hexagon Socket Countersunk Head Bolts

2026-11-02

Chophimba cha Dacromet-chokutidwa ndi hexagon socket countersunk head bolt chimaphatikiza mutu wonyezimira wonyezimira ndi zokutira za zinc-aluminium flake zomwe zimapereka maola 720-1,000 osakanizidwa ndi kupopera mchere - motalika kangapo kuposa mabawuti wamba a electro-plated zinki. Nkhaniyi ikufotokoza za geometry ya bawuti, njira yokutira ya Dacromet, njira yake yolimbana ndi dzimbiri, komanso momwe imafananira ndi njira zina zochitira dzimbiri zopangira dzimbiri ndi zomangira.

1. Mau Oyamba: Chifukwa Chake Kuteteza Kuwonongeka Kumafunika Kwa Bolts ndi Screws

Zomangira - mabawuti, zomangira, mtedza, ndi ma washers - ndizinthu zomwe zimatha kuwonongeka kwambiri pagulu lililonse la bawuti. Bawuti yochita dzimbiri imataya mphamvu, imagwira dzenje lake, ndipo pamapeto pake imasokoneza kukhulupirika kwa gulu lonse. M'malo am'madzi, milatho yamisewu yayikulu, zoyikapo dzuwa, ndi makina akunja, zomangira wamba zokutidwa ndi zinki zimatha kuwonetsa dzimbiri loyera mkati mwa milungu ingapo ndi dzimbiri lofiira mkati mwa miyezi.

2. Geometry Yopangira: Hexagon Socket Countersunk Head Bolt

Kukula kwa Ulusi	Diameter yamutu (dk)	Kutalika Kwamutu (k)	Hex Socket (s)	Kalasi Yamphamvu Yamphamvu	Utali Wofanana
M5 × 0.8	10.0 mm	2.8 mm	4 mm	8.8 / 10.9	10-60 mm
M6 × 1.0	11.4 mm	3.3 mm	5 mm	8.8 / 10.9	12-80 mm
M8 × 1.25	15.0 mm	4.4 mm	6 mm	8.8 / 10.9	16-100 mm
M10 × 1.5	18.5 mm	5.4 mm	8 mm	8.8 / 10.9	20-120 mm
M12 × 1.75	21.5 mm	6.5 mm	10 mm	8.8 / 10.9	25-150 mm

Ubwino waukulu wa geometry wamtundu uwu wa screw:

Dacromet-Wokutidwa ndi Hexagon Socket Countersunk Head Bolts

Flush pamwamba- mutu wa countersunk sutuluka, kuchotsa nsonga ndi kulola kuti ziwalo zoberekera zikhale pansi.
Kuchuluka kwa torque- Soketi ya hexagon imalumikizana ndi nkhope zisanu ndi imodzi, ndikutumiza torque yochulukirapo 30-50% kuposa yolowera kapena Phillips drive musanavula.
Kugwirizana kwa ulusi- Ulusi wamakina athunthu (kapena ulusi wodzigunda paokha pakugwiritsa ntchito zitsulo) zimapereka kulimba kwa axial kwa olowa.

3. Chophimba cha Dacromet: Momwe Zimagwirira Ntchito

Dacromet ndi dzina lachizindikiro lomwe lakhala nthawi yamakampani opanga ma generic zinc-aluminium flake zokutira Amagwiritsidwa ntchito ndi dip-spin kapena kupopera ndikuchiritsidwa pafupifupi 300 ° C. Mosiyana ndi electroplating, njirayi si electrolytic, kotero ❖ kuyanika kumayambitsa palibe embrittlement wa haidrojeni - chinthu chofunikira kwambiri chotetezera ma bawuti amphamvu kwambiri a kalasi ya 10.9 ndi pamwambapa.

Chophimbacho ndi siliva-grey matrix a zinki ndi aluminiyamu flakes (nthawi zambiri 0.1-0.5 µm wokhuthala, 15-20 µm chonse) omangidwa ndi inorganic chromium compound binder. Makina ake odana ndi dzimbiri ndi atatu:

4. Anti-Corrosion Performance: Salt Spray Data

Kuyesa kwa benchmark kwa kukana dzimbiri kwa dzimbiri ndi kuyesa kwa mchere wosalowerera ndale (NSS) pa ISO 9227 / ASTM B117. Table 3 ikufanizira zomata zokutira za Dacromet ndi njira zodziwika bwino zapamtunda.

Gulu 3 - Kuyerekeza kukana kwa Corrosion (kuyesa kwa NSS, maola mpaka dzimbiri lofiira)

Chithandizo cha Pamwamba	Kunenepa Kwambiri	Dzimbiri Loyera	Dzimbiri Lofiira	Chiwopsezo cha Hydrogen Embrittlement	Mtengo Index
Kuyika zinc koyera (Zn)	5-8µm	24-96 h	150-300 h	Wapakati	1.0
Kupaka zinki zachikasu (Zn-Cr)	5-8µm	96-200 h	300-500 h	Wapakati	1.2
Hot-dip galvanizing (HDG)	50-100 µm	—	1,000–2,000 h	Zochepa	1.5
Dacromet (1 malaya)	5-8µm	480-720 h	720-1,000 h	Palibe	1.8
Dacromet (malaya 2-3)	10-24 µm	1,000+ h	1,500–2,500 h	Palibe	2.2
Dacromet + pamwamba-chisindikizo	10-24 µm	1,200+ h	2,000–3,000 h	Palibe	2.5

5. Mapeto

Dacromet-yokutidwa ndi hexagon socket countersunk head bolt imathetsa mavuto awiri akale pakumangirira kwa ulusi - dzimbiri ndi kutulutsa - mu gawo limodzi. The countersunk geometry imapereka cholumikizira, choyera, chopanda snag cholumikizira ndi hexagon drive ya torque yayikulu, pomwe zokutira za zinc-aluminium flake zimapereka chitetezo chodzitetezera komanso chotchinga choletsa dzimbiri kwa maola 1,000 kapena kuposerapo pakuyezetsa kutsitsi, popanda hydrogen embrittlement. Kwa mainjiniya ndi ogula omwe amatchula zomangira ndi mabawuti akunja, am'madzi, kapena mayendedwe, gulu lothandizirali limapereka njira imodzi yabwino kwambiri yodzitchinjiriza ndi kutsika mtengo yomwe ikupezeka muukadaulo wamakono wamaboliti.

Zam'mbuyo. Kenako.

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