Simbi dzinokosha dzinonyanya kureva Au, Ag, PD, Pt nezvimwe zvinhu, zvine conductivity yakanaka, conductivity yekupisa, conductivity yengura uye tembiricha yakanyanya kunyunguduka. Dzinoshandiswa zvakanyanya mumidziyo yemagetsi kugadzira zvikamu zvecircuit zvakavhurika nezvakavharika.
(1) Hunhu hwesimbi dzinobatika sezvinhu zvinobatika, simbi dzinokosha dzine hunhu hwakafanana hwenzvimbo diki dzinobatika, izvo zvinoda kuti simbi inobatika ive nekudzivirira kwakanaka kwemhedzisiro, simba rakawanda, kuramba oxidation, uye inogona kutsungirira kurwiswa kwearc, asi haichinje hunhu hwezvinhu zvinobatika uye hunhu hwemagetsi hwezvikamu. Sezvo nzvimbo inobatika ine mhedzisiro shoma, kufurika kwesolder hakubvumirwi, uye maparamendi ekugadzirisa simbi dzinofanira kudzorwa zvakanyanya.
Nzira zhinji dzekudziisa dzinogona kushandiswa kuputira simbi dzinokosha uye simbi dzadzo dzinokosha. Kuputira moto kunowanzo shandiswa kune zvikamu zvakakura zvekubatana; Kuputira kwemukati kwakakodzera kugadzirwa kwehuwandu. Kuputira kwekudzivirira kunogona kuitwa nemuchina we welding we resistance welding, asi nguva shoma yemagetsi uye yakareba yekubatanidza inofanira kusarudzwa. Carbon block inogona kushandiswa se electrode. Kana zvichidikanwa kuputira huwandu hwakawanda hwezvikamu zvekubatana panguva imwe chete kana kuputira akawanda pane chimwe chikamu, kuputira kwechoto kunogona kushandiswa. Kana simbi dzakanaka dzikaputirwa nenzira dzakajairika mumhepo, mhando yemajoini haina kunaka, nepo kuputira kwevacuum kunogona kuwana majoini emhando yepamusoro, uye hunhu hwezvinhu pachazvo hahuzokanganisike.
(2) Goridhe reBrazing nesimbi dzaro zvinosarudzwa sesimbi dzinozadza simbi. Simbi dzinozadza simbi dzine sirivha nemhangura dzinonyanya kushandiswa pakubata, izvo hazvingovimbisi chete kuti simbi dzinozadza simbi dzinofambisa simbi, asiwo zviri nyore kunyorovesa. Kana zvinodiwa pakufambisa simbi zvikakwanisa kuzadzikiswa, simbi inozadza simbi ine Ni, PD, Pt nezvimwe zvinhu zvinogona kushandiswa, uye simbi inozadza simbi ine nickel inozadza simbi, diamond alloy uye resistance yakanaka ye oxidation inogona kushandiswawo. Kana simbi inozadza simbi ine Ag Cu Ti ikasarudzwa, tembiricha yebrazing haifanirwe kunge yakakwira kupfuura 1000 ℃
Sirivha oxide inoumbwa pamusoro pesirivha haina kugadzikana uye iri nyore kuputira. Kuputira kwesirivha kunogona kushandisa tin lead filler metal ine zinc chloride aqueous solution kana rosin seflux. Pakuputira, silver filler metal inowanzo shandiswa, uye borax, boric acid kana musanganiswa wayo zvinoshandiswa se brazing flux. Pakuputira vacuum brazing silver nesilver alloy contacts, silver based brazing filler metals dzinonyanya kushandiswa, dzakadai se b-ag61culn, b-ag59cu5n, b-ag72cu, nezvimwewo.
Pakubatanidza palladium nesimbi, zvinosungirirwa zvegoridhe nesimbi zvakaumbwa nenickel zviri nyore kugadzira mhinduro dzakasimba, kana zvinosungirirwa zvesirivha, mhangura kana manganese zvinogona kushandiswa. Hwaro hwesirivha hunoshandiswa zvakanyanya pakubatanidza platinum nesimbi dzakaumbwa neplatinum. Zvinosungirirwa nesimbi dzakaumbwa nemhangura, goridhe kana palladium. Kusarudza simbi yekuzadza b-an70pt30 hakungochinji ruvara rweplatinum chete, asiwo kunovandudza tembiricha yekunyunguduka kwesimbi dzakaumbwa ne ...
(3) Musati maisa simbi, weldment, kunyanya contact assembly, inofanira kuongororwa. Matinji akaboorwa kubva muplate yakatetepa kana akachekwa kubva pastrip haafanire kukanganiswa nekuda kwekuboorwa nekuchekwa. Nzvimbo yekubisa simbi yekubatana yakagadzirwa nekudzvanya, kudzvanya zvakanaka uye kuumba inofanira kunge yakatwasuka kuitira kuti ive nechokwadi chekuti inobatana zvakanaka nepamusoro pechitsigiro. Nzvimbo yakakombama yechikamu chinofanira kusunganidzwa kana pamusoro pechero radius inofanira kunge yakafanana kuti ive nechokwadi chekuti capillary effect yakakodzera panguva yekubisa simbi.
Usati waisa simbi dzakasiyana-siyana, firimu re oxide riri pamusoro pe weldment rinofanira kubviswa nemakemikari kana nzira dzemakanika, uye pamusoro pe weldment rinofanira kucheneswa nepeturu kana doro kuti mafuta, mafuta, guruva netsvina zvinokanganisa kunyorova nekuyerera kwemvura.
Kune zvidimbu zvidiki zve weld, glue inofanira kushandiswa pakuisa chigadziko kuti ive nechokwadi chekuti haizochinji panguva yekubata flarchaging uye filler metal charging, uye glue inoshandiswa haizokanganisi brazing. Kana glue yakakura kana kuti special contact, kuunganidza nekuisa chigadziko kunofanirwa kuitwa kuburikidza ne fixture ne boss kana groove kuti weldment igare yakagadzikana.
Nekuda kwekugona kupisa zvakanaka kwezvinhu zvinokosha zvesimbi, mwero wekudziya unofanirwa kusarudzwa zvichienderana nerudzi rwezvinhu. Munguva yekutonhora, mwero unofanirwa kudzorwa nemazvo kuti brazing joint stress ienderane; Nzira yekudziya inofanira kugonesa zvikamu zvakasungirirwa kusvika pakupisa kwebrazing panguva imwe chete. Kune simbi diki dzinokosha dzinosangana, kupisa zvakananga kunofanira kudzivirirwa uye zvimwe zvikamu zvinogona kushandiswa pakupisa kweconductor. Kumanikidzwa kwakati kunofanira kuiswa pakubata kuti kubatana kugadzike kana solder yanyunguduka uye yayerera. Kuti kuchengetedza kuomarara kwerutsigiro rwekubatana kana rutsigiro, annealing inofanira kudzivirirwa. Kupisa kunogona kuganhurirwa kunzvimbo yebrazing, senge kugadzirisa nzvimbo panguva yemurazvo wekuvhenekera, induction brazing kana resistance brazing. Pamusoro pezvo, kudzivirira solder kuti isanyungudise simbi dzinokosha, matanho akadai sekudzora huwandu hwesolder, kudzivirira kupisa kwakanyanya, kuganhurira nguva yebrazing pakupisa kwebrazing, uye kuita kuti kupisa kugovaniswe zvakaenzana zvinogona kutorwa.
Nguva yekutumira: Chikumi-13-2022