Dacromet Hexagonal Bolts | Technical Overview 

1. Taw qhia

Hexagonal bolts, feem ntau hu ua hex bolts, yog cov feem ntau siv fasteners hauv engineering thiab kev tsim kho. Thaum txhim kho nrog Dacromet txheej thev naus laus zis, cov bolts no xa cov kev tiv thaiv corrosion tshwj xeeb, kev ua haujlwm ruaj khov, thiab kev ntseeg tau ntev ntev txawm tias nyob hauv qhov chaw hnyav tshaj plaws. Kab lus no muab cov ncauj lus kom ntxaws txog Dacromet hexagonal bolts, npog lawv cov muaj pes tsawg leeg, qhov zoo, cov txheej txheem tsim khoom, cov kev qhia tshwj xeeb, thiab cov ntawv thov kev lag luam.

Dacromet yog ib qho khoom siv zinc-flake txheej txheej thaum pib tsim rau kev lag luam tsheb. Nws muaj zinc thiab txhuas flakes sib koom ua ke los ntawm inorganic chromate matrix. Tsis zoo li cov tsoos electroplating lossis kub-dip galvanizing, cov txheej txheem Dacromet tsis yog-electrolytic, uas ua rau nyias nyias thiab muaj txiaj ntsig zoo tiv thaiv txheej uas tsis ua rau hydrogen embrittlement-ib qho tseem ceeb kom zoo dua rau lub zog siab.

Dacromet Txheej yog dab tsi?

Dacromet (tseem hu ua zinc-flake txheej) yog dej-raws li, inorganic txheej tsim los ntawm zinc hmoov, txhuas hmoov, thiab chromate binders. Siv los ntawm dip-spin los yog cov txheej txheem tshuaj tsuag ua raws li qhov kub thiab txias (kwv yees li 300 ° C), cov txheej txheej tsim muaj ntau txheej txheej thaiv uas muab kev tiv thaiv cathodic, thaiv thaiv kev tiv thaiv, thiab cov yam ntxwv kho tus kheej.

Hom qhuav-zaj duab xis tuab yog li ntawm 4 txog 12 micrometers, deb dua li cov pa kub-dip galvanizing (50-80 μm). Txawm hais tias nws qhov profile nyias, Dacromet-coated nto niaj hnub tiv taus ntau dua 1,000 teev ntawm nruab nrab ntsev-txhaj tshuaj ntsuam yam tsis muaj qhov pom ntawm xeb liab.

2. Qhov tseem ceeb ntawm Dacromet Hex Bolts

Dacromet hexagonal bolts muab ib qho kev sib xyaw ua ke ntawm cov khoom uas ua tau zoo tshaj ntau yam kev kho mob saum npoo:

• Superior Corrosion Resistance: Cov tshuaj tsuag ntsev ua tau zoo tshaj 1,000-1,200 teev (ISO 9227 / ASTM B117), kwv yees li 7-10 npaug zoo dua li cov qauv electro-galvanizing.
• Tsis muaj Hydrogen Embrittlement: Cov txheej txheem tsis-electrolytic tshem tawm hydrogen absorption, ua Dacromet zoo tagnrho rau high-tensile bolts (Qib 8.8, 10.9, 12.9 thiab ASTM A490).
• Kev kub ntxhov siab: Kev pabcuam txuas ntxiv mus txog 300 ° C yam tsis muaj kev puas tsuaj ntawm cov yeeb yaj kiab tiv thaiv-zoo tshaj li cov pa zinc txheej.
• Thread Fit & Dimensional Stability: Cov txheej nyias nyias khaws cov xov geometry thiab tso cai rau kev sib dhos du nrog cov txheej txheem ceev.
• Zoo Paintability & Recoatability: Muaj zog adhesion rau organic topcoats enables ntxiv aesthetic los yog functional finishing.
• Bimetallic Compatibility: Ua tau zoo nyob rau hauv kev sib cuag nrog txhuas thiab lwm yam hlau tsis sib xws, txo galvanic corrosion.

Cov lus sib piv ntxaws

3. Cov txheej txheem tsim khoom

Cov txheej txheem Dacromet txheej rau hexagonal bolts yog ua tib zoo tswj cov kab ke uas ua kom muaj kev sib haum xeeb thiab kev ua haujlwm siab tshaj plaws:

1. Kev npaj nto: Bolts raug ntxuav kom huv si thiab degreased kom tshem tawm cov roj, oxides, thiab cov kab mob. Tsis xav tau cov kua qaub pickling, ntxiv kom txo tau hydrogen.
2. Daim ntawv thov Dip-Spin: Cov khoom yog immersed nyob rau hauv lub aqueous Dacromet ncua kev kawm ntawv thiab ces spun ntawm kev tswj ceev kom ua tau raws li cov yeeb yaj duab thickness thiab tshem tawm ntau txheej.
3. Pre-Curing & Final Curing: Ib qho qis-kub ua ntej ci evaporates dej, ua raws li kub kub sintering (~ 300 ° C) uas fuses zinc-aluminium flakes rau hauv ib txheej tuab, adherent txheej.
4. Kev soj ntsuam zoo: Txheej thickness, adhesion (hla-txiav xeem), tsos, thiab ntsev-spray sampling yog ua los xyuas kom meej batch sib xws.

4. Technical Specifications & Standards

Dacromet hexagonal bolts yog tsim los rau ntau yam ntawm cov qauv thoob ntiaj teb thiab muaj nyob rau hauv ntau chav tsev.

5. Cov ntawv thov kev lag luam

Ua tsaug rau lawv txoj kev sib xyaw ua ke ntawm lub zog thiab kev tiv thaiv corrosion, Dacromet hexagonal bolts tau teev nyob rau hauv ntau qhov kev xav tau:

6. Cov lus xaus

Dacromet hexagonal bolts sawv cev rau kev paub tab, kev ua haujlwm siab nrawm uas txuas qhov sib txawv ntawm cov txheej txheem zinc txheej thiab cov khoom siv kim dua xws li cov hlau tsis muaj steel lossis cov tshuab tshwj xeeb alloy. Lawv cov tshuab ua yeeb yaj kiab nyias muab cov kev tiv thaiv corrosion zoo heev, tshem tawm cov kev txhawj xeeb ntawm hydrogen embrittlement, tswj cov qhov ntev ntawm qhov siab, thiab tiv taus qhov kub siab-zoo uas ua rau lawv tseem ceeb hauv kev xyaum ua haujlwm niaj hnub no.

Raws li kev lag luam txuas ntxiv xav tau kev pab lub neej ntev dua, txo kev saib xyuas, thiab kev ntseeg siab dua nyob rau hauv ib puag ncig kev kub ntxhov, kev txais yuav Dacromet-coated fasteners yuav tsum nthuav dav ntxiv. Los ntawm kev xaiv cov qib tsim nyog, qhov loj me, thiab txheej txheej, cov tsim qauv thiab cov kws tshaj lij tuaj yeem ua tiav ob qho tib si kev ua tau zoo thiab kev ua haujlwm zoo.

Rau cov lus pom zoo tshwj xeeb lossis cov ntaub ntawv qhia kev, sab laj nrog cov neeg tsim nyog fastener thiab cov kws tshaj lij txheej txheej.