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Dacromet Hex Socket Bolts: Yepamberi Anti-Corrosion Coating Inosangana Nechokwadi Yekusimbisa Dhizaini.
2026-07-27
Dacromet hex socket bolts inomiririra kuchinjika kweaviri akakosha fastener tekinoroji: iyo Dacromet yakakwirira-inoshanda anti-corrosion coating system uye cylindrical socket-head (Allen) bolt geometry. Pamwe chete, vanounza mhinduro yekumhanyisa inomira nharaunda dzinoparadza zvakanyanya uku ichigonesa kuisirwa kwepamusoro-torque, ichiita kuti ive yakakosha mumotokari, yemugungwa, kuvaka, uye inorema michina yekushandisa pasi rese.
1. Dacromet Coating Technology
Dacromet is proprietary water-based inorganic coating system yakatanga kugadzirirwa kabhoni uye simbi isina tsvina. Kusiyana neyakajairwa electroplated zinc, Dacromet inoshandisa chromium-isina (kana yakaderera-chromium) makemikari process inoumba yakasimba yakasungwa yakawanda-layer barriers ye zinc uye aluminium flakes. Mhedzisiro iyi yakasarudzika sirivheri-grey kupedzisa iyo inosanganisa aesthetic kusarerekera pamwe neakasarudzika ekudzivirira kuita.
Iwo matatu akaturikidzana anoshanda synergistically kupa yakakwana dziviriro:
Zinc-aluminum flake base layer – inopa chibayiro (cathodic) dziviriro, corroding zviri nani kudzivirira pasi pasi pesimbi, ukuwo aluminum flakes achiwedzera kudzivirira.
Passivation mid-layer – inorganic chromate/silicate film inonamira metallic flake structure, kuramba munyu wekupfapfaidza, chemical attack, uye kupisa kunopfuura kwakajairika zinc plating.
Top organic seal coat (optional) – inokwidziridza torque-prevention uye kusamira kwemamiriro ekunze, uku ichigadzira kutaridzika kwe silver-grey kunoenderana nekudzika kwe friction.
Tafura 1. Corrosion Resistance Comparison (Salt Spray Test, NSS)
| Coating Type | Munyu Kupfapfaidza Maawa | Hukobvu (μm) | Typical Application |
| Dacromet | ≥ 1,000 - 3,000 | 6 – 10 | Marine / mota |
| Ruspert | ≥ 1,000 - 3,000 | 3 – 5 | Kunze / marine |
| Zn-Ni alloy plating | ≥ 720 - 1,000 | 8 – 12 | Automotive |
| Yakajairika Zn plating | 96 – 240 | 5 – 8 | Indoor / general |
2. Hex Socket Bolts
Hex socket bolts, inozivikanwawo se socket head cap screws kana Allen mabhaudhi, inoratidzira cylindrical musoro ine yemukati hexagonal drive. Iyi geometry inobvumira kutapurirana kwe torque neiyo diki yemusoro profiles kana ichienzaniswa nekunze hex mabhaudhi, ichiita kuti ive yakanakira maapplication ane mashoma clearance kana panodiwa flush, kutaridzika kwakachena.
Zvinhu zvakakosha zvekugadzira zvinosanganisira:
Musoro wecylindrical une mukati mehekisi drive – inogashira makiyi ehekisi akajairwa ekumisikidzwa kwe-high-torque ane musoro kushoma; saizi dzekutyaira dzinoenderana ne ISO 2936 kana ASME B18.3.
Yakazara kana chidimbu shinda – yakazara-shinda yakasiyana-siyana inogovera mutoro zvakaenzanirana nehurefu hwakabatanidzwa; partial-thread variants inopa yakasimba isina kuverengerwa shank yeshear application.
High-simba alloy simbi (8.8 / 10.9 / 12.9) – magiredhi anodzikiswa nekushisa anovimbisa kusimba kwekusvika pa1,220 MPa, inokodzera mitoro ine simba uye majoini akakosha.
Dacromet surface finish – inopa ≥ 1,000 maawa emunyu-spray dziviriro pasina hydrogen embrittlement, zvichiita kuti zvive zvakanaka kune zvinosunga zvakasimba-pamusoro apo electroplating isina kukodzera.
Tafura 2. Zvakajairwa Dacromet Hex Socket Bolt Zvinotsanangurwa (Property Kirasi 8.8)
| Size | Thread Dia. (mm) | Kureba Musoro (mm) | Min. Tensile (MPa) | Typical Application |
| M4 | 4 | 4 | 800 | Electronics / zviridzwa |
| M5 | 5 | 5 | 800 | Chiedza musangano |
| M6 | 6 | 6 | 800 | Furnicha / muchina |
| M8 | 8 | 8 | 800 | Mechanical / mota |
| M10 | 10 | 10 | 830 | Majoini ekugadzira |
| M12 | 12 | 12 | 830 | Heavy machines |
3. Pfupiso
Dacromet hex socket bolts inosanganisa iyo yepamusoro corrosion kuramba yeDacromet inorganic coating system (inowana 1,000-3,000 maawa ekudzivirira-munyu-spray kudzivirira pasina hydrogen embrittlement) neiyo yakakwirira-torque, yakaderera-yakagadziriswa dhizaini yehex socket bolt. Kubatanidzwa uku kunogonesa kusungirira kwakavimbika munzvimbo dzinoda - kubva kuchasi uye mabhureki masisitimu kuenda kune zvivakwa zvemugungwa uye zvekunze zvekushandisa - uku ichichengetedza chaiyo torque kutonga uye kusimba kwenguva refu. Sezvo maindasitiri ari kuwedzera kuda mafasteners anoenzanisa kuita, kuchengetedzeka, uye hupenyu hurefu, Dacromet hex socket bolts yave sarudzo yakasarudzika yeinjiniya uye maOEM pasi rese.
