IiMathiriyeli eziSintered zimelana njani nokuMhlwa ngaphandle koMmandla oMphezulu oMphezulu?

Intshayelelo

Izinto ezifakwe kwi-sintered zenziwe ngokufudumeza amasuntswana omgubo ukwenza isiseko esiqinileyo, esine-porous structure esidibanisayo

indawo ephezulu kunye namandla kunye nokusebenza.

Zisetyenziswa kakhulu kumashishini afana nokucoca, iimoto,

kunye ne-aerospace ngenxa yeempawu zabo ezizodwa.

*Enye yeenzuzo zabo eziphambiliindawo ephezulu, eyandisa ukusebenza kwabo kwizicelo ezinjalo

njengokuhluza.

Ukongeza, izixhobo ezifakwe sintered zaziwa ngezazoukumelana nomhlwa,nkqu nesakhiwo sazo esinemingxuma.

*Umbuzo ongundoqo:

IiMathiriyeli ze-Sintered Zimelana Njani Nokonakala Ngaphandle Kokonakala Kwazo?

*Ngaphandle kobume bayo obunorhatyazo, izinto ezifakwe emanzini zixhathisa ukubola ngenxa:

1.Ukhetho lwezinto eziphathekayo:

I-alloys enganyangekiyo kwi-Corrosion, njengentsimbi engatyiwa, isoloko isetyenziswa ekutshiseni.

2.Ulawulo lwePorosity:

Iipores ezidityanisiweyo zinqanda ukugqobhoza kokungena.

3.Unyango loKhuseleko:

Iingubo okanye i-passivation yongeza ukuxhathisa ukubola.

Ke kweli nqaku, siza kuphonononga ukuba ezi zinto zivumela njani izixhobo ezifakwe kwi-sintered ukugcina indawo ephezulu kunye nokumelana nomhlwa.

Ziziphi izinto zeSintered?

Ingcaciso:
Izinto ze-Sintered zenziwe ngokufudumeza isinyithi esinomgubo okanye izinto ze-ceramic ukuya ngaphantsi kwendawo yokunyibilika, ebangela ukuba amaqhekeza adibane kunye kwisakhiwo esiqinileyo. Le nkqubo idala imathiriyeli enendibaniselwano eyodwa yamandla, i-porosity, kunye nokusebenza.

Inkqubo yeSintering:
Inkqubo ye-sintering ibandakanya ukudibanisa isinyithi okanye i-ceramic powders ibe ngumbumba kwaye ifake ubushushu. Iqondo lokushisa liphezulu ngokwaneleyo ukuba lidibanise amaqhekeza, kodwa akwanelanga ukuwanyibilikisa ngokupheleleyo. Ngenxa yoko, iinqununu zibopha kwiindawo zabo zoqhagamshelwano, zenza izinto eziqinileyo kodwa ezinqabileyo.

Usetyenziso oluqhelekileyo lweMathiriyeli eSintered:

*Ukuhluzwa: Izinto ezifakwe kwi-sintered, ngokukodwa izihlungi zetsimbi zetsimbi, zisetyenziselwa izicelo ezahlukeneyo zokuhluza ngenxa yendawo yazo ephezulu kunye nokukwazi ukubamba iincinci ezincinci.

*I-Catalysis: Kwiinkqubo ze-catalytic, izinto ze-sintered zisebenza njengenkxaso ye-catalyst particles, enikezela indawo ephezulu kunye nokuchasana nokubola kunye nokugqoka.

*Umoya: Izinto ezifakwe kwi-sintered nazo zisetyenziselwa kwiinkqubo ze-aeration, ezifana namatye e-carbonation kwi-brewing, ngenxa yokukwazi ukusasaza ngokufanelekileyo i-gases ngokusebenzisa isakhiwo sazo se-porous.

Izixhobo ezifakwe kwi-Sintered zixatyiswe kuwo wonke amashishini ngenxa yokuguquguquka kwazo kunye nokukwazi ukudibanisa iipropathi ezinje ngokuqina okuphezulu, ukuxhathisa ubushushu, kunye nokuxhathisa umhlwa.

Ukuqonda uMmandla oPhakamileyo weNdawo yeSintered Materials

Indawo ephezuluibhekisa kumhlaba opheleleyo okhoyo kumphezulu wento, ngokumalunga nomthamo wayo. Kumxholo wezinto ezixutyiweyo, kuthetha ukuba izinto eziphathekayo zinomlinganiselo obalulekileyo wendawo evezwe ngaphakathi kwifom edibeneyo, ngenxa yesakhiwo sayo se-porous. Esi sisiphumo sothungelwano oludityanisiweyo lweepores ezincinci ezenziwe ngexesha lenkqubo ye-sintering.

Inkcazo yePorosity kunye nokubaluleka kwayo kwizicelo zoShishino

I-Porosityngumlinganiselo wezithuba ezingenanto (iipore) ngaphakathi kwesixhobo. Kwizinto ezifakwe kwi-sintered, i-porosity yinto ebalulekileyo, njengoko ivumela ukuba izinto eziphathekayo zibe lula, zifikeleleke, kwaye zisebenze kwizicelo apho kubandakanywa ukuhamba kwamanzi okanye igesi. I-Porosity kwimathiriyeli ye-sintered ngokuqhelekileyo isuka kwi-30% ukuya kwi-70%, kuxhomekeke kwisicelo esicetywayo.

Kwiimeko zoshishino, i-porosity ibalulekile kuba:

*Iququzelela ukuqukuqela kolwelo: Ivumela iirhasi okanye ulwelo ukuba ludlule kwizinto, oko kuyenza ilungele ukuhluzwa, i-aeration, kunye nezinye iinkqubo ezisekelwe kumpompozo.

*Yandisa uMmandla oMphezulu: Umphezulu ongaphezulu kumthamo omnye wongeza unxibelelwano kunye nokusingqongileyo, okubalulekileyo kwiinkqubo ezifana ne-catalysis okanye ukuphendula kweekhemikhali.

Izibonelelo zoMmandla oMphezulu oMphezulu wosetyenziso

Umgangatho ophezulu wezinto ezifakwe emanzini ubonelela ngeenzuzo ezininzi:

1.Ukonyuka kokuSebenza ngokuFanelekileyo:

Ummandla omkhulu womphezulu uvumela izihluzi ze-sintered ukuba zibambe amasuntswana amaninzi, ziphucula ukusebenza kwazo kwizicelo ezinjengomoya, igesi, okanye ukuhluzwa kolwelo.

2.Enhanced Chemical Reactions:

Kwiinkqubo ze-catalytic, indawo ephezulu ibonelela ngeendawo ezisebenzayo zokuphendula, ukwandisa ukusebenza kakuhle kwenkqubo.

3.Better Gas Diffusion:

Kwiinkqubo ze-aeration, njengamatye e-carbonation, indawo eyandisiweyo yendawo inceda ukusabalalisa iigesi ngokulinganayo kwaye ngokufanelekileyo, okukhokelela kwiziphumo ezikhawulezayo nezingatshintshiyo.

Isishwankathelo, indawo ephezulu yomgangatho kunye ne-porosity yezinto ezifakwe kwi-sintered zibenza baxabiseke kwizicelo ezininzi zemizi-mveliso, zibonelela ngokuphucuka kobuchule, ukusebenza kunye nokuguquguquka.

Imiba eFaka iNgxaki yokuNxhathisa ukuMhlwa

Kutheni ukuMhlwa kunokulindelwa
Umgangatho ophezulu wezinto ezifakwe kwi-sintered ubeka indawo engaphezulu kwi-agent e-corrosion, ekwandisa amathuba okuba ne-corrosion. Ubume bazo obunemingxuma bunokuvumela izinto ezidlayo ukuba zingene nzulu.

Ukukhethwa kwezinto
Ukumelana nokubola ubukhulu becala kuxhomekeke ekukhetheni izinto eziphathekayo.Yenziwe ngentsimbi eshayinayokwayeHastelloyzizinto eziqhelekileyo ze-sintered ngenxa yokuxhathisa kwazo ngokugqwesileyo ku-corrosion kwiimeko ezinzima.

I-Protective Oxide Passivation layer
Izinto ezifana nentsimbi engatyiwayo ziphuhlisa indaloi-passivation layerxa bevezwe kwioksijini, bebakhusela kwi-corrosion eyongezelelekileyo ngokuhlukanisa umphezulu kwizinto zokusingqongileyo.

Indima ye-Alloying Elements

*IChromiumyenza umaleko we-oxide okhuselayo, uphucula ukuxhathisa ukubola.

*Molybdenuminceda ukuthintela ukugqobhoza kwiindawo ezityebileyo ngekloridi.

*Nickeliphucula ukuxhathisa kwi-oxidation ephezulu yobushushu kunye noxinzelelo lwe-corrosion.

Ngokudibeneyo, ezi zinto ziqinisekisa ukuba izinto ezifakwe kwi-sintered zihlala zomelele kwaye zixhathisa ukubola, nakwindawo ezinomngeni.

IiMathiriyeli ze-Sintered ziGcina njani ukuNyangwa kokuMhlwa

I-Passivation Layer kwi-Pore Surface Area
Eyendaloi-passivation layeriifom kumphezulu, kubandakanywa iipores ezinkulu, xa izinto ezitshisiweyo ezifana nentsimbi engatyiwayo zivezwe kwioksijini. Lo maleko we-oxide usebenza njengomqobo okhuselayo, ukhusela ukubola.

I-Porosity Exineneyo Yehlisa ukuMhlwa kwendawo
Iubume obuxineneyo be-porositykunciphisa ukungena kwezinto ezinobungozi kwizinto eziphathekayo, ukunciphisa umngciphekoukonakala kwendawokunye nokukhusela imfezeko yezinto.

Iingubo kunye noNyango loKhuseleko olomeleziweyo
Ezongezelelweyoiingubo(umzekelo, i-passivation okanye i-ceramic layers) kunyeunyango olungaphezulu(efana ne-electropolishing) inokuphucula ngakumbi ukuxhathisa umhlwa, ukwenza izinto ezifakwe kwi-sintered ezifanelekileyo kwindawo ezingqongileyo.

Ukunyangwa koMhlwa kwiiNdawo eziBungqwabalala
Imathiriyeli yeSintered ibonisa ukuxhathisa okugqwesileyo kwi:

*Iindawo zeekhemikhali(iiasidi, izinyibilikisi)

*Amanzi etyuwa(izicelo zaselwandle)

*Iisetingi zobushushu obuphezulu(i-aerospace, ukufudumeza kwamashishini)

Ezi zinto zisebenza kunye ukuqinisekisa ukuba izinto ezisiyiweyo zihlala zomelele kwiimeko ezinobundlobongela.

Ukuthelekisa kunye neMicimbi yeNsimbi yeSithili esiQhelekileyo

Ukumelana nokuMhlwa: I-Sintered vs

Ngoxa zombiniizixhobo sinteredkwayeamacandelo esinyithi esomeleleyoinokubonisa ukuxhathisa umhlwa, imathiriyeli ye-sintered ihlala iqhuba ngcono kwiindawo ezithile. Izixhobo zetsimbi eziqinileyo zixhomekeke kwiyunifomu, indawo exineneyo yokukhusela, enokuthi ikwazi ukunyanzeliswa kwi-corrosion yendawo ukuba kukho iziphene okanye iziphene. Ngokwahlukileyo, imathiriyeli ye-sintered, kunye naboisakhiwo esinemingxuma, ziqhelekile ukumelana nomhlwa ngenxa yei-passivation layerkunye nokukwazi kwabo ukusasaza uxinzelelo kunye nokuvezwa kweekhemikhali ngokulinganayo kuwo wonke umhlaba.

Izinto eziluncedo zeSintered Materials ngaphandle koMmandla oMkhulu womphezulu
Ngaphandle kwaboindawo enkulu yomhlaba, imathiriyeli ye-sintered ibonelela ngeenzuzo ezininzi kwizicelo ezithile:

1.I-Porosity elawulwayo:

I-pores edibanisayo inceda ukunciphisa i-corrosion yendawo ngokukhawulela ubunzulu be-agent e-corrosive, ngokungafaniyo neentsimbi eziqinileyo ezinokudla kwiindawo ezibuthathaka.

2.Ummandla oPhezulu woMphezulu woHlulo kunye neCatalysis:

Kwizicelo ezifanaukuhluzwa or i-catalysis, indawo enkulu yomhlaba ivumela izinto ezixubileyo ukuba zigqwese ekubanjeni amaqhekeza okanye ukuququzelela ukuphendulwa kweekhemikhali, apho isinyithi esiqinileyo singenako ukufikelela ngokufanelekileyo.

3.Ukuguquguquka kwi-Coating kunye noNyango:

Izixhobo ze-Sintered zinokunyangwa ngeengubo ezikhethekileyo kunye nonyango lwangaphezulu, ukunyusa ukuxhathisa ukubola apho isinyithi esiqinileyo sinokuthi singakwazi ukulungelelanisa.

Lilonke, izixhobo ezifakwe emanzini zibonelela ngokusebenza ngcono kwiindawo ezithile ezinobundlobongela, ngakumbi apho indawo ephezulu, i-porosity elawulwayo, kunye nonyango olukhethekileyo lubalulekile.

Apha senza itafile sithelekisaizixhobo sinteredkwayeamacandelo entsimbi eqinileyo eqhelekileyongemimiselo yokubaukumelana nomhlwakwayeiingenelo:

Izibonelelo zokuNxhathisa iCorrosion for Industrial Applications

Ukubaluleka koKuxhathisa iCorrosion ekwandiseni uBomi boBomi

Ukumelana nokubola kubalulekile ekwandiseni iumsebenzi wobomiyeemveliso ze-sintered, ngakumbi kwindawo evezwe kwiikhemikhali ezirhabaxa, amaqondo obushushu agqithisileyo, okanye ukufuma okuphezulu. Umaleko okhuselayo we-passivation kunye ne-porosity ehlala ixesha elide inceda ukuthintela ukuthotywa kwexesha, iqinisekisa ukuba izinto ezisiyiweyo zigcina ukusebenza kwazo kunye nokuthembeka.

Imizekelo yeHlabathi yokwenyani yokuSebenza kwiiNdawo eziQhelekileyo

1.Ishishini leMichiza:

Izihluzi zetsimbi ye-stainless steel zixhathisa ukubola kwizisombululo ezineasidi okanye ezisisiseko, zizenza zilungeleukusetyenzwa kweekhemikhalikwayeukuhluzwayezinyibilikisi ezinobundlobongela.

2.Izicelo zaseLwandle:

Kwiindawo ezihlala amanzi anetyuwa, izinto ezixutyiweyo ezifana neHastelloy okanye intsimbi engatyiwayo zigcina ingqibelelo yazo, zithintela ukubola kwityuwa nokufuma, kwaye zisetyenziswa ekuhleni.amatye omoya or ukusasazwa kwegesi.

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

Izixhobo ze-Sintered zimelana nobushushu obuphezulu kunye ne-oxidation ngaphakathiizixhobo ze-aerospace, enikezela ukusebenza okuthembekileyo kwiimeko ezinzima.

IiNzuzo ezigcina iindleko

*Iindleko zoLondolozo eziphantsi: Ukuqina kwezixhobo ezikwaziyo ukumelana nomhlwa kunciphisa imfuno yokulungiswa rhoqo okanye ukutshintshwa, okukhokelela ekubeniukugcinwa okuphantsiiindleko.

*Ubomi obude bokuSebenza: Amacandelo e-Sintered angasebenza ngokufanelekileyo ixesha elongeziweyo, ukunciphisa ixesha lokuphumla kunye neendleko ezinxulumene nokutshintshwa kwemveliso.

*Ukuphuculwa kokuSebenza kunye noKwanelisa: Ukuxhatshazwa kwe-Corrosion kuqinisekisa ukuba izinto ezifakwe kwi-sintered zigcina ukusebenza kwazo kakuhle, njengeenkqubo zokuhluza okanye iinkqubo ze-catalytic, kwixesha elide.

Ukuqukumbela, ukuxhathisa umhlwa akwaneli nje ixesha lokuphila kweemveliso ezifakwe kwi-sintered kodwa ikwabonelela ngezibonelelo ezibalulekileyo zokonga iindleko, zizenze zilungele ukufunwa kwemizi-mveliso.

Ukuqukumbela

Izixhobo ze-Sintered zifikelela ekuxhathiseni ukubola ngomgangatho wazo wokudlula, i-porosity elawulwayo, kunye nealloys ezomeleleyo,

izenza zilungele izicelo zemizi-mveliso ezibango.

Ukusebenza kwabo ixesha elide kubonelela ngeendleko ezibalulekileyo zokonga.

Qhagamshelana nathi kuka@hengko.comukuya kwi-OEM izinto zakho zokucoca isinyithi esine-sintered kwizisombululo ezinganyangekiyo kumhlwa.