Ma electrothermal alloys esimbi-chromium-aluminium uye nickel-chromium alloys anowanzo dzivirira oxidation zvakanyanya, asi nekuti choto chine magasi akasiyana-siyana, akadai semhepo, mhepo ine kabhoni, mhepo ine sarufa, hydrogen, nitrogen atmosphere, nezvimwewo. Ose ane simba rakati. Kunyangwe marudzi ese e electrothermal alloys akaiswa kurapwa kwe anti-oxidation asati abva mufekitori, anokonzera kukuvara kwezvikamu kusvika pamwero wakati muzvisungo zvekufambisa, kumonera, uye kuiswa, izvo zvinoderedza hupenyu hwebasa. Kuti awedzere hupenyu hwebasa, mutengi anofanirwa kuita kurapwa kwe pre-oxidation asati ashandisa. Nzira ndeyekupisa chinhu chemagetsi chinodziya mumhepo yakaoma kusvika 100-200 degrees pasi pekupisa kwakanyanya kunobvumirwa kwe alloy, kuchichengetedza kuchidziya kwemaawa mashanu kusvika gumi, uye ipapo choto chinogona kutonhodzwa zvishoma nezvishoma.
Zvinonzwisiswa kuti dhayamita nehukobvu hwewaya yekupisa chinhu chinoenderana nekupisa kwakanyanya. Kana dhayamita yewaya yekupisa yakakura, zviri nyore kukunda dambudziko rekushanduka kwechinhu pakupisa kwakanyanya uye kuwedzera hupenyu hwayo hwekushanda. Kana waya yekupisa ichishanda pasi pekupisa kwakanyanya, dhayamita haifanire kunge iri pasi pe3mm, uye ukobvu hwemutsara wakatsetseka haufanire kunge uri pasi pe2mm. Hupenyu hwebasa hwewaya yekupisa hunonyanya kuenderana nedhayamita nehukobvu hwewaya yekupisa. Kana waya yekupisa ikashandiswa munzvimbo inodziya zvakanyanya, firimu rekuchengetedza oxide rinogadzirwa pamusoro, uye firimu re oxide rinokwegura mushure menguva yakati, richigadzira kutenderera kwekugadzirwa nekuparadza kunoramba kuripo. Maitiro aya zvakare maitiro ekushandisa zvinhu zviri mukati mewaya yemagetsi. Waya yemagetsi yemoto ine dhayamita nehukobvu hwakakura ine zvinhu zvakawanda uye hupenyu hwebasa hwakareba.
Kupatsanura
Ma electrothermal alloys: zvichienderana nehuwandu hwemakemikari uye chimiro chawo, anogona kukamurwa muzvikamu zviviri:

Imwe yacho imhando yesimbi-chromium-aluminium alloy series,

Imwe yacho imhando ye nickel-chromium alloy series, ine zvayakanakira sezvinhu zvinodziya zvemagetsi, uye inoshandiswa zvakanyanya.

Chinangwa chikuru
Michina yesimbi, kurapwa, indasitiri yemakemikari, zvedongo, zvemagetsi, zvemagetsi, zvegirazi nezvimwe zvekushandisa pakudziisa maindasitiri pamwe nemidziyo yekudziisa yehurumende.

Zvakanakira nezvayakaipira
1. Zvakanakira zvikuru nezvakaipa zvemhando yesimbi-chromium-aluminium alloy: Zvakanakira: iron-chromium-aluminium electric heating alloy ine tembiricha yepamusoro yebasa, tembiricha yepamusoro yebasa inogona kusvika 1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, nezvimwewo), hupenyu hurefu hwebasa, mutoro wepamusoro, uye kuramba kwakanaka kweoxidation, resistivity yakanyanya, yakachipa nezvimwewo. Zvakashata: Simba rakaderera zvakanyanya patembiricha yepamusoro. Sezvo tembiricha ichiwedzera, plasticity yayo inowedzera, uye zvikamu zvinoshanduka nyore nyore, uye hazvisi nyore kukotama nekugadzirisa.

2. Zvakanakira zvikuru nezvakaipa zve nickel-chromium electric heating alloy series: Zvakanakira: simba rekupisa rakakwirira rakakwirira kupfuura re iron-chromium-aluminium, harisi nyore kuchinjika kana richishandiswa pakupisa kwakakwirira, chimiro charo hachina kuchinjika nyore, plasticity yakanaka, iri nyore kugadzirisa, ine emissivity yakawanda, haina magineti, haigone ngura. Yakasimba, inogara kwenguva refu, nezvimwewo. Zvakashata: Nekuti yakagadzirwa nezvinhu zvisingawanzoitiki zve nickel metal, mutengo wezvigadzirwa izvi wakakwira kanoverengeka kupfuura weFe-Cr-Al, uye tembiricha yekushandisa yakaderera pane yeFe-Cr-Al.

zvakanaka nezvakaipa
Chekutanga, tinofanira kuziva kuti waya yekupisa inosvika pakupisa kwakatsvuka, izvo zvine chekuita nekurongeka kwewaya yekupisa. Ngatitangei tabvisa muchina wekuomesa bvudzi tocheka chikamu chewaya yekupisa. Shandisa transformer ye8V 1A, uye kuramba kwewaya yekupisa kana waya yekupisa yegumbeze remagetsi hakufanirwe kunge kuri pasi pe8 ohms, zvikasadaro transformer ichatsva zviri nyore. Ne transformer ye12V 0.5A, kuramba kwewaya yekupisa hakufanirwe kunge kuri pasi pe12 ohms, zvikasadaro transformer ichatsva zviri nyore. Kana waya yekupisa ikasvika pakupisa kwakatsvuka, kutsvuka kuri nani, unofanira kushandisa transformer ye8V 1A, uye simba rayo rakakura kupfuura re transformer ye12V 0.5A. Nenzira iyi, tinogona kuyedza zviri nani zvakanakira nekuipira kwewaya yekupisa.

4 Kugadzirisa Chinhu Chekucherechedza
1. Kupisa kwakanyanya kwekushanda kwechikamu kunoreva kupisa kwepamusoro kwechikamu chacho mumhepo yakaoma, kwete kupisa kwechoto kana chinhu chinodziya. Kazhinji, kupisa kwepamusoro kunenge madhigirii zana kupfuura kupisa kwechoto. Saka, tichifunga nezvezvikonzero zviri pamusoro apa, mukugadzira, cherechedzai kupisa kwekushanda kwezvikamu. Kana tembiricha yekushanda ikapfuura muganho wakati, oxidation yezvikamu pachayo ichakurumidza uye kuramba kupisa kuchaderedzwa. Kunyanya zvikamu zvesimbi-chromium-aluminium electric heating alloy zviri nyore kukanganisika, kuputsika, kana kutotyoka, izvo zvinopfupisa hupenyu hwebasa. .

2. Tembiricha yepamusoro yekushandisa yechikamu ichi ine hukama hwakakura nedhayamita yewaya yechikamu ichi. Kazhinji, tembiricha yepamusoro yekushandisa yechikamu ichi inofanira kunge ine dhayamita yewaya isingapfuure 3mm, uye ukobvu hwemutsara wakatsetseka haufanire kunge uri pasi pe2mm.

3. Pane hukama hwakakura pakati pemhepo inoparadza iri muchoto nekupisa kwakanyanya kushanda kwezvikamu, uye kuvapo kwemhepo inoparadza kunowanzo kukanganisa tembiricha yekushanda uye hupenyu hwebasa rezvikamu.

4. Nekuda kwesimba rakaderera resimbi-chromium-aluminium pakupisa kwakanyanya, zvikamu zvacho zvinokanganisika nyore nyore pakupisa kwakanyanya. Kana dhayamita yewaya isina kusarudzwa zvakanaka kana kuiswa kwayo kusina kunaka, zvikamu zvacho zvinoputsika uye zvinofamba-famba kwenguva pfupi nekuda kwekushanduka-shanduka kwekupisa kwakanyanya. Saka, zvinofanirwa kufungwa nezvazvo pakugadzira zvikamu.

5. Nekuda kwemakemikari akasiyana-siyana esimbi-chromium-aluminium, nickel, chromium nedzimwe mhando dzemagetsi dzinopisa, tembiricha yekushandisa uye kuramba kwe oxidation zvinotsanangurwa nemusiyano we resistivity, iyo inoonekwa mu iron-chromium heat alloy material Al element ye resistivity, Ni-Cr electric heating alloy material inosarudza resistivity ye element Ni. Pasi pemamiriro ekupisa kwakanyanya, oxide film yakagadzirwa pamusoro pe alloy element inosarudza hupenyu hwebasa. Nekuda kwekushandiswa kwenguva refu, chimiro chemukati che element chinogara chichichinja, uye oxide film yakagadzirwa pamusoro iri kukwegura uye kuparadzwa. Zvinhu zviri mukati mezvikamu zvayo zvinogara zvichishandiswa. Zvakadai seNi, Al, nezvimwewo, nokudaro zvichipfupisa hupenyu hwebasa. Naizvozvo, pakusarudza waya yedhayamita yewaya yemagetsi, unofanirwa kusarudza waya yakajairwa kana bhandi rakakora rakati sandara.