Dacromet Hex Socket Bolts: mkpuchi mgbochi corrosion dị elu na-ezute nhazi nkenke nkenke

2026-07-27

Dacromet hex socket bolts na-anọchi anya njikọ nke teknụzụ ngwa ngwa abụọ dị oke egwu: sistemụ mkpuchi mgbochi corrosion nke Dacromet na cylindrical socket-head (Allen) bolt geometry. Ọnụ, ha na-anapụta a fastener ngwọta na-nagide ukwuu corrosive gburugburu ebe obibi na-enyere kpọmkwem elu-torque echichi, na-eme ka ha dị oké mkpa na ụgbọ ala, mmiri, ewu, na arọ ígwè ngwa n'ụwa nile.

1. Dacromet mkpuchi mkpuchi

Dacromet bụ usoro mkpuchi inorganic nke sitere na mmiri nke emebere na mbụ maka carbon na igwe anaghị agba nchara. N'adịghị ka zinc electroplated nkịtị, Dacromet na-eji usoro kemịkalụ na-enweghị chromium (ma ọ bụ obere chromium) nke na-eme ka mgbochi nke ọtụtụ ihe mgbochi nke zinc na flakes aluminum. Nsonaazụ bụ ngwụcha ọla ọcha-isi awọ pụrụ iche nke na-ejikọta nnọpụiche mara mma yana ọrụ nchekwa pụrụ iche.

N'ígwé atọ a na-arụ ọrụ synergistically iji nye nchebe zuru oke:

Zinc-aluminom flake base oyi akwa - na-enye nchebe ịchụ aja (cathodic), na-emebi emebi nke ọma iji chebe mkpụrụ nchara dị n'okpuru, ebe flakes aluminom na-agbakwunye mgbochi mgbochi.

Passivation n'etiti oyi akwa - ihe nkiri chromate/silicate inorganic nke na-emechi nhazi flake dara, na-eguzogide ịgba nnu, ọgụ kemịkalụ, na okpomoku karịrị nke ịgbasa zinc.

Uwe mkpuchi organic kacha elu (nhọrọ) - na-akwalite arụmọrụ mgbochi ike yana nguzogide ihu igwe, ebe ọ na-ewepụta mpụta ọla ọcha na agba ntụ na-agbanwe agbanwe yana obere esemokwu.

Tebụl 1. Ntụnyere Nguzogide Nrụrụ Aka (Nnwale ịgbasa nnu, NSS)

Ụdị mkpuchi	Oge ịgbasa nnu	Ọkpụrụkpụ (μm)	Ngwa a na-ahụkarị
Dacromet	≥ 1,000 - 3,000	6-10	Mmiri / ụgbọ ala
Ruspert	≥ 1,000 - 3,000	3-5	N'èzí / mmiri
Zn-Ni alloy plating	≥ 720 - 1,000	8-12	Ụgbọala
Mwepụta Zn nke ọma	96-240	5-8	Ime ụlọ / izugbe

2. Hex Socket Bolts

Ihe mkpuchi hex, nke a makwaara dị ka skru isi mkpuchi ma ọ bụ Allen bolts, nwere isi cylindrical nwere mbanye hexagonal dị n'ime. Nke a jiometrị na-enye ohere nnyefe torque dị elu na obere profaịlụ isi ma e jiri ya tụnyere bolts hex dị n'èzí, na-eme ka ha dị mma maka ngwa nwere njedebe dị oke ma ọ bụ ebe a chọrọ nchacha, ọdịdị dị ọcha.

Isi atụmatụ imewe gụnyere:

Isi cylindrical nwere hex mbanye n'ime - na-anabata igodo hex ọkọlọtọ maka nrụnye dị elu nwere obere mpụta isi; Nha draịva kwekọrọ na ISO 2936 ma ọ bụ ASME B18.3.

Nri zuru ezu ma ọ bụ akụkụ akụkụ -dị iche iche nke eriri zuru ezu na-ekesa ibu nke ọma n'ogologo etinyere aka; Ụdị akụkụ akụkụ-string na-enye shank na-enweghị eriri siri ike maka ngwa shiee.

Alloy alloy siri ike dị elu (8.8 / 10.9 / 12.9) - akara ule a na-ekpo ọkụ na-eme ka ike ike dị elu ruo 1,220 MPa, dabara maka ibu dị ike na nkwonkwo dị egwu.

Dacromet n'elu imecha - na-enye ≥ 1,000 awa nchebe nnu-nyocha na-enweghị hydrogen embrittlement, na-eme ka ọ dị mma maka ihe nkedo dị elu ebe electroplating adịghị mma.

Tebụl 2. Nkọwa Dacromet Hex Socket Bolt nkịtị (Klas 8.8 nke ihe onwunwe)

Nha	Eriri Dia. (mm)	Ogologo isi (mm)	Min. Tensile (MPa)	Ngwa a na-ahụkarị
M4	4	4	800	Ngwa elektrọn / ngwa
M5	5	5	800	Mgbakọ ọkụ
M6	6	6	800	Ngwongwo / igwe
M8	8	8	800	Mechanical / ụgbọ ala
M10	10	10	830	Ihe nkwonkwo ihe owuwu
M12	12	12	830	Igwe igwe dị arọ

3. Nchịkọta

Dacromet hex socket bolts na-ejikọta nguzogide corrosion kacha elu nke sistemu mkpuchi inorganic nke Dacromet (na-enweta 1,000-3,000 awa nke nchebe nnu-spray na-enweghị hydrogen embrittlement) na nnukwu torque, obere profaịlụ nke hex soket bolt. Ngwakọta a na-enyere aka ịkwado ntụkwasị obi na gburugburu ebe ndị na-achọsi ike - site na chassis na sistemu breeki ruo n'ihe owuwu mmiri na akụrụngwa dị n'èzí - na-echekwa njikwa ike ziri ezi na ịdịte aka ogologo oge. Ka ụlọ ọrụ na-achọwanye ngwa ngwa na-edozi arụmọrụ, nchekwa na ogologo ndụ, Dacromet hex socket bolts aghọwo nhọrọ kacha amasị maka ndị injinia na OEM n'ụwa nile.