Kedu ihe kpatara na anaghị akwado zinc plating maka bolts dị elu? Oleekwa ihe ọzọ a pụrụ iji kama? Chebe bolts na skru megide corrosion na-emebighị ike ma ọ bụ nchekwa.

2026-05-12

Mgbe ndị injinia kwuru elu-ike bolts (Ọkwa 10.9, 12.9, ma ọ bụ ASTM A325/A490 dakọtara) maka njikọ nhazi, ha na-atụ anya ịrụ ọrụ na-ebu ibu. Mana mgbe a chọkwara nchedo corrosion, mmuo ndabara na-abụkarị ịkọwapụta naanị zinc galvanizing. Nhọrọ ahụ nwere ike ịdị ize ndụ.

Nsogbu a bụ ihe a na-akpọ hydrogen ebrittlement - ọnọdụ ọdịda dị jụụ nke nwere ike ime ka bolts gbajie n'enweghị ịdọ aka ná ntị, ụbọchị ma ọ bụ ọbụna izu mgbe echichi gasịrị. Nke a bụ ihe ị kwesịrị ịma, na nke ngwọta mgbochi corrosion dị mma maka elu-tensile fasteners.

Ihe ize ndụ ezoro ezo: Mmiri mmiri ozuzo

N'oge electroplating usoro, atomiki hydrogen ka a na-emepụta dị ka ihe na-esi na ya pụta. Mgbe bolts nwere ike tensile n'elu 1,000 MPa (isi ike> 320 HV) na-etinye hydrogen a n'ime lattice ígwè ha, ihe si na ya pụta bụ nkwụsị nke ductility. Ihe mkpuchi ahụ nwere ike ịgafe nyocha ọ bụla dị mma, torque nke ọma na saịtị, na mgbe ahụ daa na mberede n'okpuru ibu nkịtị.

Ọdịda a na-egbu oge - na nrụrụ rọba efu na enweghị ịdọ aka ná ntị a na-ahụ anya - na-eme ka mwepu hydrogen bụrụ otu n'ime ihe egwu kachasị njọ na nhazi nhazi. Maka sọket isi okpu kposara, hex bolts, na ọkwa ndị ọzọ dị elu fasteners eji na ngwa nchekwa dị oke egwu (àkwà mmiri, ikuku ikuku, nkwusioru ụgbọ ala), ihe ga-esi na ya pụta nwere ike bụrụ ọdachi.

Eziokwu bụ isi: Ọbụlagodi ịsa achịcha post-plating ( enyemaka enyemaka hydrogen embrittlement ) enweghị ike ikwe nkwa iwepụ hydrogen zuru oke na ọkwa 10.9 na 12.9. Ihe ize ndụ ahụ anaghị adaba na efu.

Ihe ize ndụ Galvanizing site na Bolt Grade

Bolt ọkwa	Ike tensile	Ọ Egwu	Nkwanye
8.8	800 MPa	Dị ala	Galvanizing dị mma
10.9	1,000 MPa	Elu	Jiri mkpuchi flake zinc
12.9	1,200 MPa	Dị oke egwu	Zinc flake ma ọ bụ igwe anaghị agba nchara

Galvanizing na-ekpo ọkụ na-ebu ihe ize ndụ hydrogen dị ala karịa electroplating, mana ọgwụgwọ tupu ọgwụgwọ acid ka na-ewebata hydrogen. Maka ngwa nchekwa dị elu, ọ bụghịkwa nhọrọ kacha mma.

Nhọrọ nke mgbochi corrosion dị mma

Yabụ kedu ka isi chebe elu-ike bolts na kposara site na nchara mgbe galvanizing na-apụ na tebụl? Nke a bụ ihe ndị ọzọ egosipụtara:

Mkpuchi flake nke Zinc (Dacromet / Geomet)

Etinyere mechanically - ọ dịghị acid bath, ọ dịghị electrolysis, efu hydrogen ọgbọ. Na-enye 600-1,000+ awa nguzogide nnu nnu. Dị mma maka ọkwa 10.9 na 12.9 bolts, skru, na studs.

Nhọrọ kacha mma

Mechanical Zinc Plating

Oyi-welds irighiri ihe zinc n'elu ihe nkedo na-enweghị ọkụ eletrik. Enweghị ihe ize ndụ hydrogen, dabara maka bolts hex dị elu na mkpụrụ akụ.

Enweghị ihe ize ndụ hydrogen

Igwe anaghị agba nchara

A316 ma ọ bụ A4 (316) igwe anaghị agba nchara na kposara na-enye ihe mgbochi corrosion pụtara. Kachasị mma maka gburugburu mmiri, kemịkalụ, na n'èzí.

Ngwọta adịchaghị

PTFE / Fluoropolymer mkpuchi

Na-enye ezigbo nguzogide kemịkalụ na obere esemokwu. Ọtụtụ mgbe, a na-ejikọta ya na zinc underlayer maka ịkwalite nchebe corrosion na ngwa ngwa ụlọ ọrụ.

Eji Ọpụrụiche

“Ihe mkpuchi mgbochi corrosion ziri ezi na-echebe ego gị. Onye na-ezighi ezi nwere ike ibibi ya.”

- FUJINRUI Engineering Team

Ịhọrọ ngwọta ziri ezi

Mgbe ị na-ahọrọ otu ọgwụgwọ mgbochi corrosion maka gị fasteners, tụlee ihe ndị a:

Bolt ọkwa- Ọkwa 8.8 na n'okpuru nwere ike iji galvanizing n'ozuzu. Maka 10.9 na karịa, họrọ zinc flake ma ọ bụ igwe anaghị agba nchara.
gburugburu- Mmiri mmiri na ụlọ ọrụ mmepụta ihe chọrọ awa ịgba nnu ka elu. Ihe mkpuchi geometna igwe anaghị agba nchara dara ebe a.
Ngwa- Ụgbọala, ike ikuku, na njikọ ígwè arụpụtara chọrọ ihe ize ndụ hydrogen efu. Mechanical plating na zinc flake sistem bụ ọkọlọtọ.
Ọnụ vs. arụmọrụ- Ihe mkpuchi zinc flake (Dacromet, Geomet) na-enye nguzozi kachasị mma nke nguzogide corrosion, nchekwa hydrogen na ọnụ ahịa maka ọtụtụ n'ime ha. ihe nkedo dị arọngwa.

Ihe Nke a Pụtara maka Ịzụta

Maka ndị otu na ndị injinia oru ngo, ihe a ga-ewepụ doro anya: Ọ dịghị mgbe ndabara na galvanizing maka elu-ike fasteners. Na-akọwapụta ọkwa bolt na gburugburu corrosion mgbe niile ma soro gị rụọ ọrụ emeputa fastener ịhọrọ usoro mkpuchi nke na-ewepụ ihe ize ndụ ikuku hydrogen.

Na FUJINRUI, anyị na-arụpụta mgbochi corrosion bolts, kposara, na omenala fasteners ya na Dacromet, Geomet, zinc ígwè, na mkpuchi PTFE - ahaziri na ngwa gị na ihe ndị chọrọ gburugburu ebe obibi. A na-anwale ogbe ọ bụla maka ike igwe yana nguzogide corrosion tupu ebupu ya.

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Achọrọ ihe mgbochi corrosion?

Nweta nkwanye mkpuchi mkpuchi na-akwụghị ụgwọ maka ọrụ gị. Ndị injinia anyị na-aza n'ime awa 24.

Kpọtụrụ otu anyị

Nke gara aga. Na-esote.

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