Ọgwụgwọ dị n'elu maka ngwakọ: ntuziaka nka zuru oke

Ihe fọrọ nke nta ka ọ bụrụ ihe mkpuchi azụmahịa niile ka a na-arụpụta site na carbon steel, alloy steel, ma ọ bụ igwe anaghị agba nchara. Ọbụna mgbe a na-eji ihe na-eguzogide corrosion, ọgwụgwọ elu na-anọgide na-adị mkpa maka ịkwalite ịdịte aka nke bolts na mkpụrụ na gburugburu ebe ike ike. Edemede a na-enyocha mkpuchi a na-ahụkarị na ngwa ha, na-enye ndị injinia na ndị na-emepụta ihe nghọta nwere ike ime maka ịrụ ọrụ ngwa ngwa kacha mma.

1. Zinc eletrọd (Zinc Plating)

Zinc electroplated bụ mkpuchi a na-ejikarị eme ihe maka nchara nchara azụmahịa n'ihi ọnụ ahịa ya na ịdị mma ya (dị na oji ma ọ bụ oliv drab). Agbanyeghị, ọ na-enye nguzogide corrosion agafeghị oke, na-adịru awa 72 na nnwale ịgba nnu na-anọpụ iche. Ihe mkpuchi pụrụ iche nwere ike ịgbatị nke a ruo awa 200+, mana na 5-8 ugboro ọnụ ahịa.

Mmachi dị oke egwu bụ mgbaka hydrogen, nke nwere ike ime ka ike gwụ ike dị elu (ọkwa 10.9 na karịa). Ịsa achịcha mgbe e mesịrị nwere ike ibelata mgbasa ozi hydrogen, mana usoro a anaghị adịkarị n'ọrụ n'ihi mgbagwoju anya na ọnụ ahịa. Na mgbakwunye, ihe nkedo nke nwere zinc na-egosipụta oke nrụnye na-ebubu ụzọ, na-eme ka ha ghara ịdị mma maka nkwonkwo dị oke mkpa. Usoro ọgwụgwọ mmanye mmanye nwere ike imeziwanye nkwụsi ike mana gbakwunye ọnụ ahịa.

2. Phosphate

Phosphating na-enye ihe ọzọ dị ọnụ ahịa dị mma maka ịkwanye zinc, n'agbanyeghị na ọ nwere nguzogide corrosion dị ala. Ịrụ ọrụ nke ukwuu na-adabere n'ịdị mma mmanụ ọgwụgwọ post-ọgwụgwọ: mmanụ ọkọlọtọ na-enye awa 10-20 nke nguzogide nnu nnu, ebe mmanụ dị elu na-agbatị nke a ruo awa 72-96 na oge 2-3.

Ụdị abụọ na-achịkwa iji ụlọ ọrụ mmepụta ihe:

• Zinc Phosphating: Na-enye mmanu dị elu maka ịdị mfe mgbakọ.

• Manganese Phosphating: Excels na nguzogide corrosion, eyi nkwụsi ike, na nkwụsi ike nke okpomọkụ (107-204 ° C / 225-400 ° F).

A na-akwado ihe nkedo phosphated maka ịdịgidesi ike nke torque-to-load ha, na-eme ka ha dị mma maka mgbakọ dị oke egwu dị ka akụrụngwa injin (dịka ọmụmaatụ, mkpanaka njikọ, bolts cylinder) na njikọ nchara arụpụtara. N'ụzọ doro anya, phosphating na-ezere embrittlement hydrogen, na-eme ka ọ bụrụ nhọrọ ndabara maka bolts dị elu (ọkwa 10.9+).

3. Ojii Ojii

Black oxide, jikọtara ya na mkpuchi mmanụ, bụ nhọrọ mmefu ego maka ngwa ngwa ụlọ ọrụ. Ọ bụ ezie na a na-ahụ anya mgbe a na-ete mmanụ, nguzogide corrosion ya dị ntakịrị - na-adịru naanị awa 3-5 n'ule nnu nnu ozugbo mmanụ dara. Nkwụsi ike nke Torque adịghị mma, mana itinye griiz n'oge mgbakọ nwere ike ibelata nke a. Ojiji izizi ya bụ na ngwa ndị na-adịghị mkpa, dị ọnụ ala.

4. Cadmium Plating

Cadmium plating na-enye nguzogide corrosion pụrụiche, ọkachasị na gburugburu mmiri. Otú ọ dị, oke nsi ya na ọgwụgwọ mmiri na-efu na-eme ka ọ dị okpukpu 15-20 karịa nke zinc plating. Amachibidoro iji ya na ngalaba pụrụ iche dị ka igwe mmanụ dị n'ụsọ osimiri na ụgbọ elu ụgbọ mmiri, ebe arụmọrụ na-akwado mmefu ahụ.

5. Chromium plating

Chromium plating na-enye mmasị ịchọ mma, isi ike na nguzogide okpomọkụ (ruo 650°C/1200°F). Agbanyeghị, nkuchi ụlọ ọrụ ya nwere oke n'ihi oke ọnụ ahịa ya na igwe anaghị agba nchara yana ihe egwu embrittlement hydrogen na-adịgide adịgide. Ọla kọpa na akwa nickel tupu etinye ya dị mkpa maka nchebe corrosion.

6.Silver & Nickel Plating

• Plating Silver: Ọ na-arụ ọrụ dị ka mmanu siri ike ma na-eguzogide oke okpomọkụ (ruo 871°C/1600°F), na-egbochi mkpali na ngwa okpomọkụ dị elu (dịka ọmụmaatụ, ihe mkpuchi ikuku). Mgbochi ọnụ ahịa na-ejedebe iji ya na mkpụrụ ma ọ bụ obere bolts.

• Nickel Plating: Na-ejikọta nguzogide corrosion na eletriki eletrik, dị mma maka ihe ndị dị ka njedebe batrị.

7. Hot-Dip Galvanizing

Galvanizing nke na-ekpo ọkụ na-agụnye imikpu ihe ngbochi n'ime zinc a wụrụ awụ, na-emepụta oyi akwa na-eguzogide corrosion (15-100 μm). Otú ọ dị, ọkpụrụkpụ mkpuchi na-enweghị isi na-eme ka eri dị mma, na-achọgharị erigharị-galvanizing ma ọ bụ nnukwu mkpụrụ-ha abụọ na-emebi ike. Usoro a dịkwa ize ndụ na gburugburu ebe obibi n'ihi mkpofu zinc na ikuku. N'ụzọ doro anya, ọ naghị adabara ọkwa ọkwa 10.9+ n'ihi ihe egwu nrụgide okpomọkụ.

8. DacrometMkpuchi

Dacromet®, na-enye nchebe otu site na matriks zinc-aluminom. Ha na-ewepu hydrogen embrittlement ma na-enye ngbanwe nke torque dị elu, na-eme ka ha dị mma maka ike dị elu, ngwa ndị na-emebi emebi.

9.Ndị ọzọ

Ihe mkpuchi pụrụ iche dị ka Magni (MAGNI), Ruspert (RUSPERT), na Tiodize's aluminum/Teflon hybrids na-egbo mkpa niche, na-enye nkwalite iyi uwe, mmanu mmanu, ma ọ bụ kemịkalụ inertness.

Ngwọta dị n'elu maka igwe anaghị agba nchara

• Mbelata: Ihe dị mkpa maka iwepụ mmanụ ndị na-emepụta ihe na-emebi ọrụ na aesthetics.

• Passivation: Na-akwalite nguzogide corrosion na nchapụta elu site n'itinye ihe nkedo na ngwọta nitric ma ọ bụ citric acid.

• Electroplating: Nhọrọ nickel ma ọ bụ zinc mkpuchi na-eme ka ọdịdị ma ọ bụ conductivity dịkwuo mma, n'agbanyeghị na nguzogide corrosion nke igwe anaghị agba nchara na-emekarị ka nke a ghara ịdị mkpa.

Mmechi

Ịhọrọ ọgwụgwọ elu kachasị mma chọrọ ịhazi nguzogide corrosion, ịrụ ọrụ igwe, ụkpụrụ gburugburu ebe obibi, na ọnụ ahịa. Site na zinc electroplated maka mgbakọ mmefu ego na mkpuchi mkpuchi okpomọkụ maka sistemụ ozi dị mkpa, usoro ọ bụla na-eleba anya ihe ịma aka. Ndị injinia ga-ebuterịrị ndakọrịta na ọnọdụ arụ ọrụ—ma ọ̀ na-alụso mkpughe mmiri nnu ọgụ, okpomọkụ dị elu, ma ọ bụ ibu dị ike—iji hụ na ntụkwasị obi ngwa ngwa na ịdị ogologo ndụ.

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