Classification
Electrothermal alloys: zvinoenderana nemakemikari avo emukati uye chimiro, anogona kukamurwa kuita mapoka maviri:
Imwe ndeye iron-chromium-aluminium alloy series,
Imwe yacho ndeye nickel-chromium alloy series, iyo ine zvayakanakira semagetsi ekudziya zvinhu, uye inoshandiswa zvakanyanya.
Chinangwa chikuru
Metallurgical muchina, kurapwa, indasitiri yemakemikari, ceramics, zvemagetsi, midziyo yemagetsi, girazi uye mamwe maindasitiri ekudziisa midziyo uye civil kudziyisa midziyo.
Zvakanakira nezvayakaipira
1. Izvo zvakakosha uye zvisingabatsiri zvesimbi-chromium-aluminium alloy series: Zvakanakira: iron-chromium-aluminium magetsi ekupisa alloy ane high service temperature, iyo yakanyanya kupisa yebasa inogona kusvika 1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, etc. ), hupenyu hurefu hwebasa, mutoro wepamusoro, uye yakanaka oxidation kuramba, yakakwirira resistivity, yakachipa uye zvichingodaro. Zvakaipa: Kunyanya kuderera simba pakupisa kwakanyanya. Sezvo kutonhora kunowedzera, plastiki yayo inowedzera, uye zvikamu zviri nyore kukanganisa, uye hazvisi nyore kukotama nekugadzirisa.
2. Izvo zvakakosha uye zvisingabatsiri zve nickel-chromium magetsi ekupisa alloy series: Zvakanakira: kusimba kwekushisa kwepamusoro kwakakwirira kudarika kwesimbi-chromium-aluminium, haisi nyore kukanganisa pasi pekushandiswa kwekushisa kwepamusoro, chimiro chayo hachisi nyore kuchinja, chakanaka. plasticity, iri nyore kugadzirisa, high emissivity, non-magnetic, corrosion resistance Yakasimba, hupenyu hurefu hwebasa, etc. Zvakaipa: Nekuda kwekuti yakagadzirwa nesimbi isingawanzo nickel, mutengo weiyi nhevedzano yezvigadzirwa wakakwira zvakapetwa kakawanda kupfuura izvozvo. yeFe-Cr-Al, uye tembiricha yekushandisa yakadzikira pane yeFe-Cr-Al.
zvakanaka nezvakaipa
Chokutanga pane zvose, tinofanira kuziva kuti tambo yekupisa inosvika kune tsvuku inopisa, iyo ine chokuita nesangano rekupisa tambo. Ngatitangei kubvisa bvudzi rebvudzi uye ticheke chikamu chekupisa waya. Ne 8V 1A transformer, kushorwa kwetambo yekupisa kana tambo yekupisa yegumbeze remagetsi haifanire kunge iri pasi pe8 ohms, kana zvisina kudaro iyo transformer ichapisa nyore nyore. Ne 12V 0.5A transformer, kushorwa kwetambo yekupisa hakufaniri kuva pasi pe24 ohms, kana zvisina kudaro transformer ichapisa nyore nyore. Kana iyo inopisa waya inosvika kune yakatsvuka-inopisa nyika, iyo yakatsvuka zviri nani, iwe unofanirwa kushandisa 8V 1A transformer, uye simba rayo rakakura kupfuura iro re12V 0.5A transformer. Nenzira iyi, tinogona kuedza zviri nani zvakanakira uye zvisingabatsiri zvewaya yekudziya.
1. Kupisa kwakanyanya kwekushanda kwechikamu kunoreva kupisa kwepamusoro kwechikamu pachayo mumhepo yakaoma, kwete kupisa kwechoto kana chinhu chinopisa. Kazhinji, tembiricha yepasi inenge 100 madhigirii akakwira kupfuura tembiricha yechoto. Nokudaro, tichifunga nezvezvikonzero zviri pamusoro apa, mukugadzira Chengetedza kutonhora kwekushanda kwezvikamu. Kana tembiricha yekushanda ichipfuura imwe muganhu, iyo oxidation yezvikamu pachayo ichakwidziridzwa uye kushomeka kwekupisa kuchaderedzwa. Kunyanya iyo iron-chromium-aluminium yemagetsi yekudziya alloy zvikamu zviri nyore kukanganisa, kudonha, kana kutopwanya, izvo zvinopfupisa hupenyu hwesevhisi. .
2. Kupisa kwakanyanya kwekushanda kwechikamu kune hukama hukuru nehupamhi hwetambo yechikamu. Kazhinji, iyo yakanyanya tembiricha yekushanda yechikamu inofanira kunge iine waya dhayamita isingasviki 3mm, uye ukobvu hweiyo flat strip haifanire kunge iri pasi pe2mm.
3. Pane hukama hukuru pakati pemhepo inopisa muchoto uye kupisa kwakanyanya kwekushanda kwezvikamu, uye kuvapo kwemhepo inopisa kunowanzokanganisa kupisa kwekushanda uye hupenyu hwebasa rezvikamu.
4. Pamusana pekuderera kwepamusoro-kupisa simba resimbi-chromium-aluminium, zvikamu zviri nyore kuremara pakupisa kwepamusoro. Kana iyo dhayamita yetambo isina kusarudzwa zvakanaka kana kuiswa kwacho kusina kunaka, zvikamu zvichaputsika uye pfupi-dunhu nekuda kwekupisa-kupisa. Saka, inofanirwa kuverengerwa pakugadzira zvikamu. chinhu chayo.
5. Nekuda kweakasiyana makemikari akaumbwa esimbi-chromium-aluminium, nickel, chromium uye mamwe akatevedzana emagetsi ekudziya alloys, tembiricha yekushandisa uye oxidation kuramba kunotsanangurwa nemusiyano weresistivity, inotarirwa mune iron-chromium kupisa alloy zvinhu. Al element ye resistivity, Ni-Cr yemagetsi inodziya alloy zvinhu inosarudza resistivity yechinhu Ni. Pasi pemamiriro ekupisa kwepamusoro, iyo oxide firimu inoumbwa pamusoro peiyo alloy element inosarudza hupenyu hwebasa. Nekuda kwekushandiswa kwenguva refu, chimiro chemukati chechinhu chinogara chichichinja, uye iyo oxide firimu inoumbwa pamusoro inochembera uye inoparadzwa. Zvinhu zviri mukati mezvikamu zvayo zvinogara zvichidyiwa. Zvakadai saNi, Al, nezvimwewo, nokudaro vachipfupisa hupenyu hwebasa. Naizvozvo, kana uchisarudza dhayamita yewaya yewaya yechoto chemagetsi, unofanirwa kusarudza waya yakajairwa kana bhandi rakakora.