Okwu mmalite
A na-emepụta ihe ndị a na-emegharị emegharị site na ikpo ọkụ ntụ ntụ na-emepụta ihe siri ike, nke na-agba ọsọ na-ejikọta
elu elu ebe na ike na ọrụ.
A na-eji ha eme ihe na ụlọ ọrụ dịka filtration, automotive,
na aerospace n'ihi na ha pụrụ iche Njirimara.
*Otu n'ime uru ha bara bụelu elu ebe, nke na-eme ka arụmọrụ ha dịkwuo elu na ngwa ndị dị otú ahụ
dị ka filtration.
Tụkwasị na nke ahụ, a maara ihe ndị e ji emepụta ihe maka haiguzogide corrosion,ọbụna na ha porous Ọdịdị.
* Ajụjụ bụ isi:
Kedu ka ihe ndị e ji emepụta ihe si eguzogide corrosion n'agbanyeghị na ha adịghị mma?
* N'agbanyeghị ọdịdị ha na-adịghị mma, ihe ndị a na-agba agba na-eguzogide corrosion n'ihi:
1.Material Choice:
A na-ejikarị alloys na-eguzogide corrosion, dị ka igwe anaghị agba nchara, na ntinye.
2.Porosity Control:
Oghere ndị jikọrọ ọnụ na-amachi ntinye corrosive.
3.Protective Ọgwụgwọ:
Mkpuchi ma ọ bụ passivation na-akwalite nguzogide corrosion.
Ya mere, n'isiokwu a, anyị ga-enyocha otú ihe ndị a na-ekwe ka ihe ndị a na-emepụta ihe na-eme ka ebe dị elu dị elu ma na-eguzogide corrosion.
Gịnị bụ Sintered Materials?
Nkọwa:
A na-emepụta ihe ndị a kpụkọrọ akpụkọ site n'ịkpọ ígwè ntụ ntụ ma ọ bụ ihe seramiiki ka ọ dị n'okpuru ebe mgbaze ha, na-eme ka ihe ndị ahụ jikọta ọnụ ka ha bụrụ ihe siri ike. Usoro a na-emepụta ihe na-ejikọta ike, porosity, na ọrụ pụrụ iche.
Usoro nke Sintering:
Usoro ihe nkedo na-agụnye ịgbakọ ígwè ma ọ bụ seramiiki ntụ ntụ n'ime ihe ebu ma tinyezie okpomọkụ. Okpomọkụ dị elu nke ukwuu iji jikọta ihe ndị ahụ, mana ezughị iji gbazee ha nke ọma. N'ihi ya, ihe ndị ahụ na-ejikọta na ebe ha na-akpakọrịta, na-eme ihe siri ike ma ọ bụ porous.
Ngwa ndị a na-ahụkarị nke ihe ndị e ji eme ihe:
*Nyocha: A na-eji ihe ndị e ji emepụta ihe, karịsịa ihe nzacha ígwè, na-eji ngwa nzacha dị iche iche n'ihi elu elu ha na ikike ijide ihe ndị dị mma.
* Catalysis: N'ime usoro catalytic, ihe ndị na-emepụta ihe na-arụ ọrụ dịka nkwado maka ihe ndị na-emepụta ihe, na-enye ebe dị elu na-eguzogide corrosion na eyi.
* Ikuku: A na-ejikwa ihe ndị a na-emepụta ihe na-eme ihe na usoro ikuku, dị ka nkume carbonation na-emeputa, n'ihi ike ha na-agbasa gas nke ọma site na nhazi ha.
A na-eji ihe ndị e ji emepụta ihe kpọrọ ihe n'ofe ụlọ ọrụ maka ịdị iche iche na ikike ijikọta ihe ndị dị ka ike dị elu, nkwụsị ọkụ, na nkwụsị nke corrosion.
Ịghọta ebe dị elu nke ihe ndị e ji eme ihe
Ebe dị eluna-ezo aka na mkpokọta mpaghara dị n'elu ihe, dabere na olu ya. N'ihe gbasara ihe ndị a na-emegharị emegharị, ọ pụtara na ihe ahụ nwere ọnụ ọgụgụ dị ịrịba ama nke ekpuchiri elu n'ime ụdị kọmpat, n'ihi nhazi ya. Nke a bụ ihe si na netwọk ejikọrọ ọnụ nke obere pores emepụtara n'oge usoro ịme ihe.
Nkọwa nke Porosity na mkpa ọ dị na ngwa mmepụta ihe
Porositybụ ihe atụ nke oghere efu (pores) n'ime ihe. Maka ihe eji eme ihe, porosity bụ ihe dị oke egwu, ebe ọ na-enye ohere ka ihe ahụ dị arọ, na-eme ka ọ dị mfe ma na-arụ ọrụ na ngwa ebe mmiri ma ọ bụ gas na-etinye aka. Ọdịda dị n'ihe ndị a kpara akpa na-adịkarị site na 30% ruo 70%, dabere na ngwa a chọrọ.
Na ntọala ụlọ ọrụ, porosity dị mkpa n'ihi na ọ:
* Na-eme ka mmiri na-asọ asọ: Na-enye ohere ka gas ma ọ bụ mmiri mmiri na-agafe ihe ahụ, na-eme ka ọ dị mma maka nzacha, ikuku, na usoro ndị ọzọ na-adabere na mmiri.
* Na-abawanye Mpaghara elu: Mpaghara elu karịa n'ime otu olu na-eme ka kọntaktị na gburugburu gburugburu, nke dị mkpa maka usoro dị ka catalysis ma ọ bụ mmeghachi omume kemịkal.
Uru nke Mpaghara elu dị elu maka ngwa
Ebe dị elu nke ihe sintered na-enye ọtụtụ uru:
1.Abawanye arụmọrụ nzacha:
Ebe dị n'elu buru ibu na-enye ohere nzacha sintered weghara ihe ndị ọzọ, na-eme ka arụmọrụ ha dị na ngwa dịka ikuku, gas, ma ọ bụ nzacha mmiri.
2.Enhanced Chemical Reactions:
Na usoro catalytic, ebe elu dị elu na-enye saịtị ndị na-arụsi ọrụ ike maka mmeghachi omume, na-abawanye arụmọrụ nke usoro ahụ.
3. Mma mgbasa ozi gas:
Na sistemu ikuku, dị ka okwute carbonation, ebe elu na-abawanye na-enyere aka ịgbasa gas nke ọma na nke ọma, na-eduga na nsonaazụ ngwa ngwa ma na-agbanwe agbanwe.
Na nchịkọta, elu elu elu na porosity nke sintered ihe na-eme ka ha bara uru n'ọtụtụ ngwa ụlọ ọrụ mmepụta ihe, na-enye arụmọrụ dị mma, arụmọrụ, na ntụgharị.
Ihe na-enye aka na nguzogide corrosion
Ihe mere e nwere ike iji tụọ anya mmebi
Ebe dị elu dị elu na ihe ndị na-emepụta ihe na-eme ka ọ dịkwuo elu na ihe ndị na-emerụ emerụ, na-amụba ohere nke corrosion. Ọdịdị ha nwere oghere nwekwara ike ikwe ka ihe ndị na-emebi emebi banye n'ime omimi.
Nhọrọ ihe
Nguzogide corrosion dabere na nhọrọ ihe.Igwe anaghị agba ncharanaHastelloybụ ihe ndị a na-ahụkarị sintered n'ihi ezigbo nguzogide corrosion na ọnọdụ siri ike.
oyi akwa mkpuchi mkpuchi oxide
Ihe dị ka igwe anaghị agba nchara na-etolite ekepassivation oyi akwamgbe ekpughere ya na ikuku oxygen, na-echebe ha pụọ na mmebi ọzọ site na ikewapụ elu site na ihe ndị dị na gburugburu ebe obibi.
Ọrụ nke Alloying Elements
* Chromiumna-etolite oyi akwa oxide na-echebe, na-akwalite nguzogide corrosion.
* Molybdenumna-enyere aka igbochi olulu na gburugburu chloride nwere ụbara.
* Nickelna-eme ka nguzogide ikuku dị elu na corrosion nrụgide.
Ọnụ, ihe ndị a na-eme ka ihe ndị a kpụrụ akpụ na-adịgide adịgide ma na-eguzogide corrosion, ọbụlagodi na gburugburu ebe ndị siri ike.
Kedu ka ihe eji eme ihe na-ejigide nguzogide corrosion
Ngwunye ngafe na mpaghara elu elu
The ekepassivation oyi akwana-etolite n'elu, gụnyere nnukwu pores, mgbe a na-ekpuchi ihe ndị na-esi ísì dị ka igwe anaghị agba nchara na ikuku oxygen. Nke a oyi akwa oxide na-arụ ọrụ dị ka ihe mgbochi nchebe, na-egbochi corrosion.
Oke porosity na-ebelata nrụrụ mpaghara
Nkeok porosity Ọdịdịna-egbochi ntinye nke ndị na-emebi emebi n'ime ihe, na-ebelata ihe ize ndụ nkecorrosion nke mpagharana ichebe iguzosi ike n'ezi ihe nke ihe.
Mkpuchi na Ọgwụgwọ maka nchekwa emelitere
Mgbakwunyemkpuchi(dịka ọmụmaatụ, passivation ma ọ bụ akwa seramiiki) naọgwụgwọ elu(dị ka electropolishing) nwere ike ime ka nguzogide corrosion dịkwuo mma, na-eme ka ihe ndị e ji eme ihe dị mma maka gburugburu ebe dị njọ.
Nguzogide corrosion na gburugburu Harsh
Ihe ndị a kpụkọrọ akpụkọ na-egosi nguzogide dị mma na:
* gburugburu kemikal(acids, ihe mgbaze)
* Mmiri nnu(ngwa mmiri)
* Ntọala okpomọkụ dị elu(aerospace, ulo oru kpo oku)
Ihe ndị a na-arụkọ ọrụ ọnụ iji hụ na ihe ndị a na-agbanye n'ọkụ na-adịgide adịgide na ọnọdụ ike ike.
Tụnye ya na akụrụngwa igwe siri ike
Nguzogide corrosion: Sintered vs. Ngwa igwe siri ike
Mgbe ha abụọihe sinterednaihe ndị siri ike ígwènwere ike igosipụta nguzogide corrosion, ihe ndị a na-emegharị emegharị na-emekarị nke ọma na gburugburu ụfọdụ. Ihe ndị dị nchara siri ike na-adabere n'ụdị uwe, nnukwu elu maka nchebe, nke nwere ike ịdaba na corrosion mpaghara ma ọ bụrụ na enwere ntụpọ ma ọ bụ ntụpọ. N'ụzọ dị iche, sintered ihe, na haporous Ọdịdị, na-emekarị ihe na-eguzogide corrosion n'ihi napassivation oyi akwana ike ha ikesa nrụgide na mkpughe kemịkalụ karịa n'ofe elu.
Uru nke ihe eji eme ihe n'agbanyeghị nnukwu mpaghara elu
N'agbanyeghị hannukwu elu ebe, sintered ihe na-enye ọtụtụ uru na ụfọdụ ngwa:
1.Controlled Porosity:
Oghere jikọtara ọnụ na-enyere aka belata nrụrụ mpaghara site na ịmachi omimi nke ihe na-emebi emebi, n'adịghị ka ọla siri ike nke nwere ike imebi n'ebe adịghị ike.
2.High n'elu ebe maka nzacha na catalysis:
Na ngwa dị kafiltration or catalysis, nnukwu ebe dị elu na-enye ohere ka ihe ndị na-emepụta ihe na-eme nke ọma n'iwepụta ihe ndị dị n'ime ma ọ bụ na-eme ka mmeghachi omume kemịkal dị mfe, nke ọla siri ike na-enweghị ike ime nke ọma.
3. Mgbanwe na mkpuchi mkpuchi na ọgwụgwọ:
Enwere ike iji ihe mkpuchi pụrụ iche na ọgwụgwọ elu na-agwọ ihe ndị a kpụkọrọ akpụkọ, na-eme ka nguzogide corrosion dịkwuo elu ebe ọla siri ike nwere ike ọ gaghị adị ka mgbanwe.
N'ozuzu, ihe ndị a gbanyere mkpọrọgwụ na-enye arụmọrụ ka mma na mpaghara ụfọdụ na-eme ihe ike, karịsịa ebe ebe elu dị elu, porosity a na-achịkwa, na ọgwụgwọ pụrụ iche dị oke mkpa.
N'ebe a, anyị na-eme tebụl atụnyereihe sinterednaomenala siri ike metal componentsn'usoro nkeiguzogide corrosionnauru:
Njirimara | Ngwa ndị a kpụkọrọ akpụkọ | Ngwa ọla edo siri ike |
---|---|---|
Nguzogide corrosion | Nguzogide ka mma n'ihi oyi akwa passivation na porosity na-achịkwa. N'otu n'otu na-ekesa ihe egwu corrosion. | Na-adị mfe na corrosion mpaghara n'ebe adịghị ike ma ọ bụ ntụpọ dị n'elu. |
Mpaghara dị n'elu | Ebe elu dị elu n'ihi nhazi nke porous, bara uru maka nzacha, catalysis, na mgbasa gas. | Mpaghara ala dị ala, dabara nke ọma maka ngwa nhazi mana ọ naghị adị irè maka nzacha ma ọ bụ ọrụ catalytic. |
Njikwa porosity | Porosity a na-achịkwa na-ebelata omimi nke ntinye ihe na-emebi emebi ma na-akwalite arụmọrụ na gburugburu ebe ọjọọ. | siri ike, na-adịghị porous; nnukwu ihe ize ndụ nke corrosion mpaghara n'ọnọdụ ụfọdụ. |
Nkwekọrịta na mkpuchi mkpuchi/ Ọgwụgwọ | Enwere ike kpuchie ma ọ bụ gwọọ ya na ọkwa pụrụ iche (dịka ọmụmaatụ, passivation, seramiiki mkpuchi) iji kwalite nguzogide corrosion. | Enwere ike itinye mkpuchi mkpuchi mana nwere ike ọ gaghị adị mfe ịmegharị ma ọ bụ dị irè na gburugburu ebe mgbagwoju anya. |
Ngwa | Dị mma maka nzacha, catalysis, na mgbasa gas na gburugburu ebe ike (dịka ọmụmaatụ, kemịkalụ, mmiri nnu, oke okpomọkụ). | Kacha mma maka ngwa nhazi ma ọ bụ ibu ibu ebe nguzogide corrosion na-adighi oke egwu. |
Uru nke nguzogide nrụrụ maka ngwa nrụpụta
Mkpa nke nguzogide nrụrụ dị na ịgbatị ndụ
Nguzogide corrosion dị oké mkpa maka ịgbatị ahụogologo ndụngwaahịa ndị emechiri emechi, ọkachasị na gburugburu ebe kemịkalụ siri ike, oke okpomọkụ, ma ọ bụ oke iru mmiri. Okpokoro passivation na-echebe na usoro porosity na-adịgide adịgide na-enyere aka igbochi mmebi ka oge na-aga, na-ahụ na ihe ndị a kpara akpa na-ejigide ọrụ ha na iguzosi ike n'ezi ihe.
Ihe Nlereanya n'ezie nke ụwa na gburugburu Harsh
Ụlọ ọrụ 1.Chemical:
Ihe nzacha igwe anaghị agba nchara na-eguzogide corrosion na acidic ma ọ bụ ihe ngwọta bụ isi, na-eme ka ha dị mmanhazi kemịkalụnafiltrationnke ihe mgbaze ike ike.
Ngwa 2.Marine:
N'akụkụ mmiri nnu, ihe ndị a kpụrụ akpụ dị ka Hastelloy ma ọ bụ igwe anaghị agba nchara na-edobe iguzosi ike n'ezi ihe ha, na-egbochi corrosion sitere na nnu na mmiri, ma jiri ya mee ihe.nkume aeration or mgbasa gas.
3.Aerospace na High-Temperature Systems:
Ihe ndị a kpụrụ akpụ na-anagide okpomọkụ dị elu yana oxidation n'imeakụrụngwa ikuku, na-enye arụmọrụ a pụrụ ịdabere na ya na ọnọdụ dị oke egwu.
Uru na-echekwa ọnụ ahịa
* Ọnụ nlekọta dị ala: Ịdị ogologo nke ihe sintered na-eguzogide corrosion na-ebelata mkpa ọ dị maka ịrụzi ma ọ bụ ngbanwe ugboro ugboro, na-eduga naobere mmeziakwụ ụgwọ.
* Ndụ arụ ọrụ ogologo: Ihe ndị na-emepụta ihe nwere ike ịrụ ọrụ nke ọma ruo ogologo oge, na-ebelata oge nkwụsị na ụgwọ ndị metụtara ngbanwe ngwaahịa.
* Arụmọrụ na arụmọrụ emelitere: Nguzogide corrosion na-eme ka a mata na ihe ndị a na-agbanye n'ọkụ na-ejigide arụmọrụ ha, dị ka na usoro filtration ma ọ bụ usoro catalytic, n'ime ogologo oge.
Na mmechi, nguzogide corrosion ọ bụghị naanị na-agbatị ndụ nke ngwaahịa sintered kamakwa ọ na-enye nnukwu uru na-echekwa ego, na-eme ka ha dị mma maka ịchọ ụlọ ọrụ mmepụta ihe.
Mmechi
Ihe ndị a kpụkọrọ akpụkọ na-enweta nguzogide corrosion site na oyi akwa passivation ha, porosity na-achịkwa, na alloys na-adịgide adịgide,
na-eme ka ha dị mma maka ịchọ ngwa ụlọ ọrụ mmepụta ihe.
Ọrụ ha na-adịte aka na-enye nnukwu ego nchekwa ego.
Kpọtụrụ anyị naka@hengko.comna OEM ihe nzacha metal gị siri ike maka ngwọta na-eguzogide corrosion.
Oge nzipu: Dec-05-2024