Hexagon Flange Bolts nrog Dacromet Txheej: Geometry, Txheej Txheem, Kev Ua Tau Zoo thiab Kev Sib Txuas Lus Qhia

Xyoo 2026-10-26

1. Taw qhia

Geometry, Txheej Txheem, Kev Ua Haujlwm thiab Kev Sib Txuas Lus Qhia (1)

Flange bolts - hexagon taub hau bolts nrog kev sib xyaw flange (lub ntsej muag lub ntsej muag) ua rau hauv lub taub hau - tau dhau los ua qhov kev xaiv ntawm kev tsim tsheb, kev sib dhos tshuab, thiab kev tsim cov kav dej. Los ntawm kev sib txuas cov ntsia liaj qhov rooj thiab lub tshuab ntxhua khaub ncaws rau hauv ib feem, lub flange ntsia liaj qhov rooj ua kom yooj yim sib dhos, faib cov clamping load hla thaj tsam loj dua, thiab txhim kho kev tiv thaiv tus kheej hauv kev vibration.

Hauv kev pabcuam corrosive, txawm li cas los xij, cov txiaj ntsig ntawm kev tsim flange tsuas tuaj yeem paub yog tias cov txheej txheem uas tiv thaiv lub bolt tseem nyob ntev npaum li qhov sib koom ua ke. Dacromet (zinc-aluminium flake) txheej tau tshwm sim raws li qhov nyiam kev tiv thaiv kev tiv thaiv rau lub zog siab flange bolts, muab ntsev tsuag tshuaj tiv thaiv ntau zaus ntau dua li electro-galvanizing ntawm ib feem ntawm lub thickness ntawm kub-dip galvanizing - thiab tsis muaj hydrogen embrittlement txaus ntshai.

Kab lus no piav qhia txog cov geometry thiab cov qauv ntawm hex flange bolts, piav qhia txog Dacromet txheej txheej txheem raws li siv rau flange bolts, nthuav qhia kev sib piv kev ua tau zoo thiab cov kev qhia tshwj xeeb, thiab muab cov kev xaiv ua tau zoo thiab cov kev taw qhia sib dhos.

2. Hex Flange Bolt yog dab tsi?

Lub hex flange bolt yog lub taub hau hexagon ntsia liaj qhov rooj uas nws lub taub hau nqa ib lub voj voog flange ntawm cov kabmob nto, raws li ISO 4162 / DIN 6921 (metric) thiab cov qauv sib piv inch-series. Muaj ob tsev neeg tsim qauv:

Me flange series- compact flange txoj kab uas hla rau qhov chaw nruj, muaj nyob rau hauv tsheb cav;
Loj (dav) flange series- kwv yees li 1.5 × xov txoj kab uas hla bearing nto, siv qhov ntau dua bearing loads los yog mos clamping cov ntaub ntawv (aluminium, plastics) koom nrog.

Muaj ntau flange bolts ntxiv rau feature serrations (radial hniav) ntawm flange underside. Cov serrations tom rau hauv mating nto, ua rau muaj kev tiv thaiv rau cov txheeb ze micro-tsav thiab kev txhim kho cov ntsia liaj qhov rooj tiv thaiv nws tus kheej-loosing nyob rau hauv transverse vibration - tsis xav tau ib tug cais lub xauv ntxhua khaub ncaws.

Geometry, Txheej Txheem, Kev Ua Haujlwm thiab Kev Sib Txuas Lus Qhia (2)

3. Vim li cas Dacromet Txheej rau Flange Bolts?

Dacromet txheej yog dej-raws li slurry ntawm zinc thiab txhuas flakes nrog passivators thiab inorganic binders. Cov khoom yog dip-coated, centrifugally spun kom tshem tawm cov slurry tshaj, thiab kho ntawm 280-330 ° C rau 20-40 feeb; ob lub voj voog dip-spin feem ntau tawm los ntawm 6-10 μm zaj duab xis. Flange bolts yog tshwj xeeb zoo haum rau cov txheej txheem dip-spin:

1.Ua tiav kev pab them nqi- cov txheej ntws mus rau hauv lub flange-rau-shank fillet thiab serration grooves, qhov chaw uas electroplating feem ntau tawm nyias los yog tsis zoo deposits;

2. Uniform thickness- centrifugal spinning muab cov yeeb yaj kiab thoob plaws lub ntsej muag tiaj tus flange, khaws cia qhov sib npaug ntawm cov kabmob uas yog qhov tseem ceeb rau qhov tseeb clamp-load;

3.Tsis muaj hydrogen embrittlement- tsis muaj acid pickling lossis electrolytic tam sim no koom nrog, yog li qib 10.9 thiab 12.9 tuaj yeem raug coated zoo;

4. Xov precision- lub nyias, tawv zaj duab xis khaws cov xov geometry, yog li cov flange bolts tseem khiav dawb rau hauv qhov tapping thiab ua phooj ywg nrog tus qauv flange ceev;

5. Kev sib txhuam tsis sib xws- nrog cov roj nplua nyeem ua ke, Dacromet flange bolts ua tiav cov txiv ntoo ruaj khov (K ≈ 0.12-0.16), qhov tseem ceeb rau cov kab sib dhos uas tswj tau.

4. Kev ua tau zoo thiab kev ua haujlwm zoo

Bearing cheeb tsam thiab nto siab

Lub ntsiab kom zoo dua ntawm flange tsim yog load faib. Cov lus hauv qab no muab piv rau tus qauv M10 hex ntsia liaj qhov rooj, hex ntsia liaj qhov rooj nrog nyias lub tshuab ntxhua khaub ncaws, thiab M10 loj-flange ntsia liaj qhov rooj ntawm tib 30 kN clamp load.

Bolt configuration	Bearing OD (kwv yees)	Cov kabmob (mm²)	Qhov siab ntawm 30 kN (N / mm²)
Hex ntsia liaj qhov rooj DIN 933, tsis muaj ntxhua khaub ncaws	14.5mm (lub ntsej muag lub ntsej muag)	≈ 78	≈ 385
Hex ntsia liaj qhov rooj + tiaj tus ntxhua khaub ncaws DIN 125	20 mm	≈ 166	≈ 181
Hex flange ntsia liaj qhov rooj DIN6921	21.5mm 3	≈ 208	≈ 144

Table 1. Cov kabmob thiab qhov sib piv ntawm qhov chaw siab (M10 piv txwv, qhov tseem ceeb).

Daim duab 2. Qhov siab ntawm qhov qis txhais tau hais tias tsawg dua rau hauv cov mos mos los yog pleev xim rau ntawm qhov chaw thiab muaj kev sib koom ua ke nruj dua nyob rau lub sijhawm.

Kev txo qis qis txo qis embedding (brinelling) rau hauv txhuas lossis pleev xim rau hauv qhov chaw, ua kom lub clamped sib koom ua ke nruj dua lub sijhawm, thiab txo qis qhov kev pheej hmoo ntawm lub taub hau poob rau hauv cov ntaub ntawv mos. Tsis tas li ntawd, kev kuaj kev ywj pheej ntawm kev sib tw (Junker test, DIN 65151) tsis tu ncua qhia tau hais tias cov serrated flange bolts khaws ntau clamp load ntau dua li cov hex bolts ntawm tib qib, vim hais tias cov serrations xauv lub bearing interface thiab dav flange resists lub taub hau tig.

Ua ntej. Tom ntej no.

Xov xwm tshiab