Dacromet-Coated Hex Socket Bolts-Ib Daim Ntawv Qhia Kev Qhia Txog Dacromet Surface Treatment thiab Cylindrical Head Hex Socket Design 

1. Taw qhia

Dacromet-coated hex socket bolts sawv cev rau cov kev ua tau zoo fastening tov uas ua ke nrog ob lub thev naus laus zis tseem ceeb: Dacromet txheej txheej txheej txheej txheej txheej txheej thiab cov txheej txheem precision-engineered cylindrical taub hau hex socket (Allen) tsav tsim. Cov bolts no tau siv dav hauv tsheb, kev tsim kho, marine, thiab cov ntawv thov kev lag luam uas zoo dua corrosion kuj thiab txhim khu kev qha torque hloov mus rau qhov tseem ceeb.

Cov kev qhia no muab kev ntsuam xyuas qhov tob ntawm ob qho tib si Dacromet txheej thev naus laus zis thiab kev tsim qauv ntawm lub taub hau cylindrical hex socket bolts, npog lawv cov khoom muaj pes tsawg leeg, kev tsim cov txheej txheem, kev ua haujlwm zoo, thiab kev siv tswv yim.

2. Dacromet Txheej Technology

2.1 Dacromet yog dab tsi?

Dacromet yog ib qho kev tshaj lij, ib puag ncig tus phooj ywg los tiv thaiv corrosion txheej tshuab tsim los ua lwm txoj hauv kev niaj hnub rau kev siv tshuaj electroplating. Nws yog dej-raws li, uas tsis yog-electrolytic txheej txheej txheej tsim los ntawm ultrafine zinc thiab txhuas flakes sib koom ua ke los ntawm kev hloov pauv chromate. Cov txheej txheej yog siv los ntawm dip-spin los yog tshuaj tsuag txoj kev thiab kho ntawm qhov kub ntawm ib ncig ntawm 300 ° C, ua kom tuab, ntau txheej tiv thaiv zaj duab xis ntawm cov hlau substrate.

2.2 Kev sib xyaw thiab txheej txheej txheej

Dacromet txheej muaj ntau yam tseem ceeb uas ua haujlwm sib koom ua ke los muab kev tiv thaiv corrosion tshwj xeeb:

Zinc flakes (20-30%): Muab kev tiv thaiv (cathodic) rau cov hlau substrate

Aluminium flakes (10-15%): Txhim khu kev tiv thaiv kev tiv thaiv thiab kub ua hauj

Chromate binder: Tsim cov txheej txheem hloov pauv passivating uas kaw cov txheej txheem

Organic solvent tsheb: nqa cov khoom siv thaum siv

2.3 Dacromet vs. Pa coatings

Cov lus hauv qab no sib piv Dacromet nrog cov txheej txheem bolt txheej:

Cov lus 1. Cov khoom sib piv ntawm Dacromet vs. zinc plating thiab kub-dip galvanizing

3. Cylindrical Head Hex Socket Bolt Tsim

3.1 Cov yam ntxwv ntawm tus qauv

Lub taub hau cylindrical hex socket ntsia liaj qhov rooj, feem ntau hais raws li DIN 912 (ISO 4762), nta lub taub hau cylindrical (khawm) lub taub hau nrog lub qhov (socket) hexagonal (Allen) tsav so. Qhov kev tsim no muaj ntau yam zoo ntawm cov qauv hex taub hau bolts:

Tsawg-profile lub taub hau tsim: Lub taub hau cylindrical zaum dej los yog me ntsis hauv qab ntawm qhov chaw, ua rau nws zoo tagnrho rau kev sib sau ua ke nrog kev tshem tawm tsawg.

Internal hex tsav: Lub qhov (socket) hex tso cai rau torque los ntawm hauv lub taub hau, txo qhov kev pheej hmoo ntawm stripping thiab ua kom muaj zog dua clamping.

Smooth sab nrauv: Qhov tsis muaj sab nraud hex flats tiv thaiv kev cuam tshuam nrog cov khoom nyob ib sab thiab txhim kho qhov zoo nkauj.

Uniform stress tis: Lub taub hau cylindrical geometry faib clamping load tusyees thoob plaws cheeb tsam, txo cov kev ntxhov siab hauv cheeb tsam.

3.2 Txuj Dimensions (DIN 912 / ISO 4762)

Cov lus hauv qab no qhia txog qhov tseem ceeb ntawm qhov ntsuas qhov ntsuas qhov ntau thiab tsawg:

Table 2. Txheem qhov ntev rau cylindrical taub hau hex socket bolts (DIN 912 / ISO 4762)

4. Kev siv thiab kev lag luam siv

Dacromet-coated hex socket bolts pom kev siv dav hauv ntau qhov kev lag luam vim lawv qhov sib xyaw ua ke ntawm kev tiv thaiv corrosion thiab kev ntseeg tau txhua yam:

Automotive: Lub cav sib dhos, chassis Cheebtsam, nres tshuab, thiab lub cev vaj huam sib luag yog qhov tseem ceeb rau kev tiv thaiv corrosion mus ntev.

Kev tsim kho thiab kev tsim kho vaj tsev: steel ncej txuas, kab hlau rhuav phab ntsa, thiab cov txheej txheem sab nraum zoov raug rau huab cua hnyav.

Marine thiab offshore: Cov cuab yeej thiab cov qauv raug rau cov dej ntsev, qhov twg cov txheej txheem ua tsis tau sai.

Kev tsheb ciav hlau thiab cua zog: Cov chaw muaj kev vibration siab xav tau ob qho tib si ruaj ntseg fastening thiab ruaj khov nto tiv thaiv.

Hluav taws xob thiab hluav taws xob enclosures: Sab nraum zoov txee thiab khoom vaj tse nyob yuav tsum tsis-conductive, corrosion-resistant fasteners.

5. Cov ntsiab lus tseem ceeb zoo

Table 3. Cov ntsiab lus tseem ceeb ntawm qhov zoo ntawm cov txheej thiab tsim

6. Cov lus xaus

Dacromet-coated hex socket bolts sawv cev rau kev sib koom ua ke ntawm kev tsim kho saum npoo av thiab precision mechanical tsim. Dacromet txheej muab tshwj xeeb tiv thaiv corrosion tsis muaj hydrogen embrittlement txaus ntshai cuam tshuam nrog electroplating, thaum lub cylindrical taub hau hex socket configuration muab superior torque hloov, compact geometry, thiab txhim khu kev qha clamping kev ua tau zoo. Ua ke, cov thev naus laus zis no ua rau Dacromet hex socket bolts qhov kev xaiv zoo tshaj plaws rau kev thov kev siv thoob plaws hauv tsheb, kev tsim kho, marine, thiab kev lag luam.

Raws li kev lag luam txuas ntxiv xav tau kev pab cuam lub neej ntev dua, txo kev txij nkawm, thiab kev tsim lub luag haujlwm ib puag ncig, kev siv Dacromet-coated fasteners yuav tsum loj hlob. Cov kws tshaj lij thiab cov kws tshaj lij yuav tsum xav txog kev qhia txog Dacromet hex socket bolts rau txhua daim ntawv thov uas muaj kev tiv thaiv corrosion, kev ntseeg tau ntawm cov neeg kho tshuab, thiab kev sib dhos tsim qauv yog cov qauv kev ua haujlwm tseem ceeb.