Izinto Ze-Sintered Zimelana Kanjani Nokugqwala Naphezu Kwendawo Yazo Ephezulu Ephezulu?

Isingeniso

Izinto ezisikiwe zenziwe ngokushisisa izinhlayiya zempushana ukuze zakhe isakhiwo esiqinile, esinezimbotshana esihlanganisayo

indawo ephezulu enamandla nokusebenza.

Zisetshenziswa kakhulu ezimbonini ezifana nokuhlunga, ezezimoto,

kanye ne-aerospace ngenxa yezindawo zabo ezihlukile.

*Enye yezinzuzo zabo ezibalulekileindawo ephezulu, okuthuthukisa ukusebenza kwabo ezinhlelweni ezinjalo

njengokuhlunga.

Ukwengeza, izinto ezisikiwe ziyaziwa ngezazoukumelana nokugqwala,ngisho nesakhiwo sazo esinezimbotshana.

*Umbuzo Obalulekile:

Izinto Ezisetshenziswayo Ze-Sintered Zimelana Kanjani Nokugqwala Naphezu Kokuqina Kwazo?

*Ngaphezu kwemvelo yazo enezimbotshana, izinto ezisikiwe zimelana nokugqwala ngenxa:

1.Ukukhetha Okubalulekile:

Ama-alloys amelana nokugqwala, njengensimbi engagqwali, avame ukusetshenziswa ekushiseni.

2.Porosity Control:

Izimbotshana ezixhumene zikhawulela ukungena okubolayo.

3.Imithi Yokuzivikela:

Ama-coatings noma i-passivation ithuthukisa ukumelana nokugqwala.

Ngakho-ke, kulesi sihloko, sizohlola ukuthi lezi zici zivumela kanjani izinto ezihlanganisiwe ukugcina kokubili indawo ephezulu kanye nokumelana nokugqwala.

Yiziphi Izinto Ezisetshenziswayo Ze-Sintered?

Incazelo:
Izinto ze-Sintered zakhiwa ngokushisisa insimbi eyimpuphu noma izinto zobumba zibe ngaphansi nje kwendawo yazo yokuncibilika, okwenza izinhlayiya zihlangane zibe isakhiwo esiqinile. Le nqubo idala into enenhlanganisela eyingqayizivele yamandla, i-porosity, nokusebenza.

Inqubo ye-Sintering:
Inqubo ye-sintering ihlanganisa ukuhlanganisa insimbi noma izimpushana ze-ceramic zibe isikhunta bese usebenzisa ukushisa. Izinga lokushisa liphakeme ngokwanele ukuhlanganisa izinhlayiya, kodwa akwanele ukuzincibilikisa ngokugcwele. Ngenxa yalokho, izinhlayiya zibophana ezindaweni zazo zokuxhumana, zenze into eqinile kodwa enezimbotshana.

Ukusetshenziswa Okujwayelekile Kwezinto Ezisetshenziswayo:

*Ukuhlunga: Izinto ezisikiwe, ikakhulukazi izihlungi zensimbi ezine-sintered, zisetshenziswa ezinhlelweni zokuhlunga ezahlukahlukene ngenxa yendawo yazo ephezulu kanye nekhono lokuthwebula izinhlayiya ezinhle.

*I-Catalysis: Ezinqubweni ze-catalytic, izinto ezihlanganisiwe zisebenza njengezisekelo zezinhlayiya ze-catalyst, ezinikeza indawo ephezulu kanye nokumelana nokugqwala nokuguga.

*Umoya: Izinto ze-sintered nazo zisetshenziswa ezinhlelweni ze-aeration, njengamatshe e-carbonation lapho kutshalwa, ngenxa yekhono lawo lokusabalalisa amagesi ngokuphumelelayo ngesakhiwo sawo esinezimbotshana.

Izinto ezisetshenziswayo ze-Sintered zibaluleke kakhulu ezimbonini zonkana ngenxa yokuguquguquka kwazo nekhono lokuhlanganisa izakhiwo ezifana namandla aphezulu, ukumelana nokushisa, nokumelana nokugqwala.

Ukuqonda Indawo Ephezulu Yokuphezulu Kwezinto Ezisetshenziswayo

Indawo ephezuluibhekisela endaweni ephelele etholakalayo ebusweni bento, uma kuqhathaniswa nomthamo wayo. Kumongo wezinto ezisikiwe, kusho ukuthi impahla inenani elibalulekile lendawo eveziwe ngaphakathi kwefomu elihlangene, ngenxa yesakhiwo sayo esinezimbotshana. Lokhu kuwumphumela wenethiwekhi exhumene yezimbotshana ezincane ezidalwe phakathi nenqubo yokucwilisa.

Incazelo ye-Porosity Nokubaluleka Kwayo Ezicelweni Zezimboni

I-Porosityisilinganiso sezikhala ezingenalutho (izimbotshana) ngaphakathi kwempahla. Kuzinto ze-sintered, i-porosity iyisici esibalulekile, njengoba ivumela okokusebenza ukuthi kube lula, kungeneke, futhi kusebenze ezinhlelweni lapho uketshezi noma ukugeleza kwegesi kubandakanyeka. I-Porosity ezintweni ezifakwe emanzini ngokuvamile isukela ku-30% iye ku-70%, kuye ngohlelo oluhlosiwe.

Ezilungiselelweni zezimboni, i-porosity ibalulekile ngoba:

*Yenza kube lula ukugeleza kwe-Fluid: Ivumela amagesi noma uketshezi ukuthi ludlule kokubalulekile, okuyenza ifaneleke ukuhlungwa, ukufaka umoya, nezinye izinqubo ezisekelwe ekugelezeni.

*Yandisa Indawo engaphezulu: Indawo eyengeziwe ngaphakathi kwevolumu efanayo ithuthukisa ukuthintana nendawo ezungezile, okubalulekile ezinqubweni ezifana ne-catalysis noma ukusabela kwamakhemikhali.

Izinzuzo Zezindawo Eziphezulu Eziphezulu Zezicelo

Indawo ephezulu yezinto ezifakiwe ihlinzeka ngezinzuzo eziningana:

1.Ukwengeza Ukuhlunga Ngempumelelo:

Indawo enkulu engaphezulu ivumela izihlungi ezi-sintered ukuthi zithwebule izinhlayiya eziningi, zithuthukise ukusebenza kwazo ezinhlelweni ezinjengomoya, igesi, noma ukuhlunga uketshezi.

2.Ukusabela Kwekhemikhali Okuthuthukisiwe:

Ezinqubweni ze-catalytic, indawo ephezulu inikeza amasayithi asebenzayo wokusabela, okwandisa ukusebenza kahle kwenqubo.

3.Better Gas Diffusion:

Ezinhlelweni zokungenisa umoya, njengamatshe e-carbonation, indawo engaphezulu eyandayo isiza ukusabalalisa amagesi ngokulinganayo nangempumelelo, okuholela emiphumeleni esheshayo nengaguquguquki.

Kafushane, indawo ephezulu kanye ne-porosity yezinto ezihlanganisiwe zizenza zibe wusizo ezinhlelweni eziningi zezimboni, zinikeza ukusebenza kahle okuthuthukisiwe, ukusebenza, kanye nokuguquguquka.

Izinto Ezinomthelela Ekumelaneni Nokugqwala

Kungani Ukugqwala Kungase Kulindelwe
Indawo ephezulu ezintweni ezisindisiwe iveza indawo eyengeziwe kuma-ejenti ezonakalisayo, okwandisa amathuba okugqwala. Isakhiwo sazo esinezimbotshana singavumela izakhi ezonakalisayo ukuba zingene zijule.

Ukukhetha Okubalulekile
Ukumelana nokugqwala kuncike kakhulu ekukhetheni impahla.Insimbi engagqwalifuthiI-Hastelloyizinto ezivamile ze-sintered ngenxa yokumelana kwazo okuhle kakhulu nokugqwala ezimweni ezinzima.

Isendlalelo Se-Protective Oxide Passivation
Izinto ezifana nensimbi engagqwali zithuthukisa imveloi-passivation layerlapho echayeke kumoya-mpilo, ukuwavikela ekugxumeni okuqhubekayo ngokuhlukanisa indawo engaphezulu nezakhi zemvelo.

Iqhaza Lezinto Zokuhlanganisa

*I-Chromiumyakha ungqimba lwe-oxide oluvikelayo, oluthuthukisa ukumelana nokugqwala.

* I-Molybdenumisiza ukuvimbela ukungena ezindaweni ezinothe nge-chloride.

*Nickelkuthuthukisa ukumelana ne-high-temperature oxidation kanye nokugqwala kwengcindezi.

Ngokuhlangene, lezi zici ziqinisekisa ukuthi izinto ezisikiwe zihlala ziqinile futhi zimelana nokugqwala, ngisho nasezindaweni eziyinselele.

Indlela I-Sintered Materials Egcina Kanjani Ukumelana Nokugqwala

Isendlalelo se-Passivation endaweni ye-Pore Surface
Okwemveloi-passivation layeramafomu angaphezulu, okuhlanganisa nezimbotshana ezinkulu, lapho izinto ezisikiwe njengensimbi engagqwali zichayeka emoyeni. Lesi singqimba se-oxide sisebenza njengesithiyo esivikelayo, esivimbela ukugqwala.

I-Dense Porosity Yehlisa Ukugqwala Kwendawo
Iisakhiwo se-porosity esiminyeneikhawulela ukungena kwama-ejenti agqwalayo kumpahla, inciphisa ingoziukugqwala kwendawokanye nokuvikela ubuqotho bento.

Izembatho kanye Nokwelashwa Kokuvikela Okuthuthukisiwe
Okwengeziweezinengilazi(isb, izingqimba ze-passivation noma ze-ceramic) kanyezokwelapha ebusweni(njenge-electropolishing) ingaqhubeka ithuthukise ukumelana nokugqwala, yenze izinto ezifakwe emanzini zilungele izindawo ezinokhahlo.

Ukumelana Nokugqwala Ezindaweni Ezinzima
Izinto ze-Sintered zibonisa ukumelana okuhle kakhulu ku:

*Izindawo zamakhemikhali(ama-acids, ama-solvents)

*Amanzi anosawoti(izicelo zasolwandle)

*Izilungiselelo zokushisa okuphezulu(i-aerospace, ukufudumeza kwemboni)

Lezi zinto zisebenza ndawonye ukuze kuqinisekiswe ukuthi izinto ezisikiwe zihlala ziqinile ezimeni ezinolaka.

Ukuqhathanisa ne-Conventional Solid Metal Components

Ukumelana Nokugqwala: I-Sintered vs. Solid Metal Components

Nakuba kokubiliizinto ezisikiwefuthiizingxenye zensimbi eziqinileingabonisa ukumelana nokugqwala, izinto ezisikiwe ngokuvamile zenza kangcono ezindaweni ezithile. Izingxenye zensimbi eziqinile zithembele endaweni elinganayo, eminyene ukuze ivikeleke, engakwazi ukugqwala endaweni uma kukhona amaphutha noma amaphutha. Ngokuphambene, izinto ezisikiwe, nazoisakhiwo esinezimbotshana, ziyakwazi ukumelana nokugqwala ngenxa yei-passivation layerkanye nekhono labo lokusabalalisa ingcindezi nokuchayeka kwamakhemikhali ngokulinganayo endaweni yonke.

Izinzuzo Zezinto Ezihlanganisiwe Naphezu Kwendawo Enkulu Engaphezulu
Naphezu kwaboindawo enkulu engaphezulu, izinto ze-sintered zinikeza izinzuzo ezimbalwa ezinhlelweni ezithile:

1.I-Porosity Elawulwayo:

Izimbotshana ezixhumeneyo zisiza ekunciphiseni ukugqwala kwendawo ngokukhawulela ukujula kwezinto ezonakalisayo, ngokungafani nezinsimbi eziqinile ezingagqwala ezindaweni ezibuthakathaka.

2.Indawo Ephezulu Yokucwenga kanye ne-Catalysis:

Kuzicelo ezifanaukuhlunga or i-catalysis, indawo enkulu engaphezulu ivumela izinto ezisikiwe ukuthi ziphumelele ekuthwebuleni izinhlayiya noma ukusiza ukusabela kwamakhemikhali, izinsimbi eziqinile ezingakwazi ukukufeza ngempumelelo.

3.Ukuguquguquka Kokumboza Nokwelashwa:

Izinto ezihlanganisiwe zingelashwa ngezingubo ezikhethekile kanye nokwelashwa kwendawo, okuthuthukisa ukumelana nokugqwala lapho izinsimbi eziqinile zingase zingakwazi ukuguquguquka.

Sekukonke, izinto ezihlanganisiwe zinikeza ukusebenza okungcono ezindaweni ezithile ezinolaka, ikakhulukazi lapho indawo ephezulu, i-porosity elawulwayo, nokwelashwa okukhethekile kubalulekile.

Lapha senza itafula ukuqhathanisaizinto ezisikiwefuthiizingxenye ezivamile zensimbi eqinileMayelanaukumelana nokugqwalafuthiizinzuzo:

Izinzuzo Zokumelana Nokugqwala Kwezicelo Zezimboni

Ukubaluleka Kokumelana Nokugqwala Ekwandiseni Isikhathi Sokuphila

Ukumelana nokugqwala kubalulekile ukuze kunwetshweubude bempiloyemikhiqizo ene-sintered, ikakhulukazi ezindaweni ezichayeke kumakhemikhali anokhahlo, amazinga okushisa aphezulu, noma umswakama ophezulu. Isendlalelo se-passivation esivikelayo kanye nesakhiwo se-porosity esiqinile kusiza ukuvimbela ukuwohloka ngokuhamba kwesikhathi, ukuqinisekisa ukuthi izinto ezisikiwe zigcina ukusebenza kwazo nobuqotho.

Izibonelo Zomhlaba Wangempela Zokusebenza Ezimweni Ezinzima

1.Imboni Yamakhemikhali:

Izihlungi zensimbi engagqwali e-Sintered zimelana nokugqwala kuzixazululo ezine-acidic noma eziyisisekelo, zizenze zilungeleukucubungula kwamakhemikhalifuthiukuhlungaizincibilikisi ezinolaka.

2.Izicelo Zasolwandle:

Ezindaweni ezinamanzi anosawoti, izinto ezisikiwe njenge-Hastelloy noma insimbi engagqwali zigcina ubuqotho bazo besakhiwo, zivimbela ukugqwala okuvela kusawoti kanye nomswakama, futhi zisetshenziswaamatshe aeration or ukusabalala kwegesi.

3.I-Aerospace kanye ne-High-Temperature Systems:

Izinto ezihlanganisiwe zimelana namazinga okushisa aphezulu kanye ne-oxidation ngaphakathiizingxenye ze-aerospace, enikeza ukusebenza okuthembekile ezimweni ezimbi kakhulu.

Izinzuzo Zokonga Izindleko

*Izindleko Zokulungisa Eziphansi: Ukuqina kwezinto ezingagqwali ezingagqwali kunciphisa isidingo sokulungiswa njalo noma ukushintshwa, okuholela ekutheniukugcinwa okuphansiizindleko.

*Impilo ende yokusebenza: Izingxenye ze-Sintered zingasebenza kahle isikhathi eside, zinciphise isikhathi sokuphumula kanye nezindleko ezihlobene nokushintshwa komkhiqizo.

*Ukusebenza Okuthuthukisiwe Nempumelelo: Ukumelana nokugqwala kuqinisekisa ukuthi izinto ezisindisiwe zigcina ukusebenza kahle kwazo, njengamasistimu okuhlunga noma izinqubo ze-catalytic, ngokuhamba kwesikhathi.

Sengiphetha, ukumelana nokugqwala akugcini nje ngokunweba isikhathi sempilo yemikhiqizo ecwilisiwe kodwa futhi kunikeza izinzuzo ezibalulekile zokonga, okuzenza zilungele ukufunwa yizimboni.

Isiphetho

Izinto ezisetshenziswayo ze-Sintered zithola ukumelana nokugqwala ngongqimba lwazo lwe-passivation, i-porosity elawulwayo, nama-alloys ahlala isikhathi eside,

ukuzenza zibe zilungele ukufuna izicelo zezimboni.

Ukusebenza kwabo okuhlala isikhathi eside kunikeza ukonga kwezindleko ezibalulekile.

Xhumana nathi kuka@hengko.comku-OEM izinto zakho zokuhlunga zensimbi ezisikiwe ukuze uthole izixazululo ezimelana nokugqwala.