Hexagon Socket Countersunk Isi Bolts nwere mkpuchi dacromet

2026-11-02

Ihe mkpuchi mkpuchi hexagon nwere mkpuchi Dacromet na-ejikọta isi ihe nkedo countersunk dabara adaba na mkpuchi zinc-aluminom flake nke na-ebuga awa 720-1,000 nke nguzogide nnu - ọtụtụ ugboro karịa ka ọla kọpa zinc nkịtị. Edemede a na-akọwa geometry bolt, usoro mkpuchi Dacromet, usoro mgbochi corrosion ya, yana otu o si atụnyere ọgwụgwọ nchara ndị ọzọ maka skru na bolts.

1. Okwu Mmalite: Gịnị kpatara nchebe corrosion ji dị mkpa maka bolts na kposara

Ihe nkedo - bolts, skru, nuts, na washers - bụ ihe kacha emebi emebi na nkwonkwo ọ bụla agbachiri. Mkpọchi nke nchara na-atụfu ibu ibu, na-ejide eriri eriri ya, ma mechaa mebie nguzosi ike n'ezi ihe nke ọgbakọ ahụ dum. Na gburugburu mmiri, àkwà mmiri awara awara, ihe ndị na-arị elu anyanwụ, na ígwè ọrụ dị n'èzí, skru nke zinc nkịtị nwere ike igosi nchara ọcha n'ime izu na nchara na-acha uhie uhie n'ime ọnwa.

2. Geometry ngwaahịa: Hexagon Socket Countersunk Head Bolt

Nha eriri	Dayameta isi (dk)	Ogologo isi (k)	Hex Socket (s)	Klas Ike Tensile	Ogologo oge niile
M5 × 0.8	10.0 mm	2.8 mm	4 mm	8.8 / 10.9	10-60 mm
M6 × 1.0	11.4 mm	3.3 mm	5 mm	8.8 / 10.9	12-80 mm
M8 × 1.25	15.0 mm	4.4 mm	6 mm	8.8 / 10.9	16-100 mm
M10 × 1.5	18.5 mm	5.4 mm	8 mm	8.8 / 10.9	20-120 mm
M12 × 1.75	21.5 mm	6,5 mm	10 mm	8.8 / 10.9	25-150 mm

Uru geometry bụ isi nke ụdị skru a:

Hexagon Socket Countersunk Isi Bolts nwere mkpuchi dacromet

Ghichaa elu- countersunk isi anaghị apụ apụ, na-ewepu snag ihe na ikwe ka mating akụkụ nọdụ ala n'elu.
Ike torque dị elu- oghere hexagon na-etinye ihu kọntaktị isii, na-ebufe 30-50% karịa nke nwere oghere ma ọ bụ draịvụ Phillips tupu ịkwapụ.
Njikọ njikọ- eriri igwe zuru oke (ma ọ bụ eriri na-emetụ onwe ya maka ngwa mpempe akwụkwọ) na-enye njigide axial siri ike nke nkwonkwo bolted.

3. Ihe mkpuchi Dacromet: Otu esi arụ ọrụ

Dacromet bụ aha ụghalaahịa aghọọla okwu ụlọ ọrụ izugbe maka zinc-aluminom flake mkpuchi etinyere ya site n'itinye ma ọ bụ fesa wee gwọọ ya na ihe dịka 300 Celsius. N'adịghị ka electroplating, usoro a na-abụghị electrolytic, otú mkpuchi na-ewebata dịghị hydrogen embrittlement - a oké egwu nchekwa ihe maka bolts dị elu nke ọkwa 10.9 na n'elu.

Ihe mkpuchi ahụ bụ matriks ọlaọcha-agba ntụ nke zinc na flakes aluminom (nke 0.1-0.5 µm gbara ọkpụrụkpụ, 15-20 µm mkpokọta) jikọtara ya na ihe nchikota chromium inorganic. Usoro mgbochi corrosion ya dị okpukpu atọ:

4. Arụmọrụ mgbochi corrosion: Data Spray Data

Nnwale benchmark maka iguzogide nchara nchara bụ nnwale nnu nnu na-anọpụ iche (NSS) kwa ISO 9227 / ASTM B117. Tebụl 3 tụlere skru nwere mkpuchi Dacromet na usoro ọgwụgwọ elu ọzọ a na-ahụkarị.

Tebụl 3 - ntụnyere nguzogide corrosion (Nnwale NSS, awa na-acha uhie uhie mbụ)

Ọgwụgwọ elu	Ọkpụrụkpụ a na-ahụkarị	Ọcha ajari	Uhie ajari	Ihe ize ndụ embrittlement hydrogen	Ndekọ ọnụ ahịa
Kpochapụ zinc plating (Zn)	5–8 µm	24–96 elekere	150-300 h	Ọkara	1.0
Ihe mkpuchi ọla edo edo edo (Zn-Cr)	5–8 µm	96–200 elekere	300-500 h	Ọkara	1.2
Ịtụnye ọkụ na-ekpo ọkụ (HDG)	50-100 µm	—	1,000–2,000 h	Dị ala	1.5
Dacromet (1 uwe)	5–8 µm	480–720 h	720–1,000 h	Ọ dịghị	1.8
Dacromet (mkpuchi 2-3)	10–24 µm	1,000+ h	1,500–2,500 h	Ọ dịghị	2.2
Dacromet + akara kacha elu	10–24 µm	1,200+ h	2,000–3,000 h	Ọ dịghị	2.5

5. Mmechi

Ihe mkpuchi mkpuchi hexagon nwere mkpuchi Dacromet na-edozi nsogbu abụọ kacha ochie na ntinye eriri - nchara na protrusion - n'otu akụkụ. The countersunk geometry na-enye nhịahụ, dị ọcha, na-enweghị snag-free nkwonkwo na elu-torque hexagon mbanye, ebe zinc-aluminom flake mkpuchi na-enye àjà na mgbochi mgbochi corrosion nchebe na-adịru 1,000 awa ma ọ bụ karịa na nnu-spray ule, na-enweghị hydrogen embrittlement. Maka ndị injinia na ndị na-azụ ahịa na-akọwapụta skru na bolts maka gburugburu mpụta, mmiri, ma ọ bụ njem ụgbọ njem, klaasị ihe mkpuchi a na-enye otu n'ime oke nrụrụ-nchekwa na ọnụ ahịa kacha mma dị na teknụzụ bolting ọgbara ọhụrụ.

Nke gara aga. Na-esote.

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