Welding inzira yekuti zvinhu zvezvishandiso zvinosungirirwa (zvakafanana kana akasiyana marudzi) zvinosanganiswa nekudziya kana kudzvanywa kana zvese zviri zviviri, zvine kana zvisina zvigadziriso zvekuzadza, kuitira kuti zvinhu zvezvishandiso zvinosungirirwa pakati peatomu kuita chigarire. kubatana. Saka ndeapi mapoinzi akakosha uye matanho ekuchengetedza Stainless simbi welding?
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Ndeapi maelectrode anoshandiswa kubatanidza simbi isina tsvina?
Stainless simbi yewelding tsvimbo inogona kukamurwa kuita chromium Stainless simbi welding rods uye chromium-nickel Stainless simbi welding tsvimbo. Idzo mhando mbiri dzetsvimbo dzewelding dzinosangana nechiyero chenyika inozoongororwa zvinoenderana neiyo yenyika standard GB/T983-2012.
Chromium Stainless simbi ine kumwe kupikisa kwecorrosion (oxidizing acids, organic acids, cavitation), kudzivirira kupisa uye kushomeka kwekudzivirira. Kazhinji inosarudzwa semidziyo yemidziyo yezviteshi zvemagetsi, indasitiri yemakemikari, petroleum uye zvichingodaro. Nekudaro, chromium Stainless simbi kazhinji haina kusimba, saka kutarisisa kunofanirwa kubhadharwa kune welding process, kupisa mamiriro ekupisa uye kusarudzwa kweakakodzera tsvimbo.
Chromium-nickel Stainless steel welding rods ine yakanaka corrosion resistance uye oxidation kuramba uye inoshandiswa zvakanyanya muindasitiri yemakemikari, fetiraiza, peturu, uye kugadzira michina yekurapa. Kuti udzivise intergranular corrosion nekuda kwekupisa, welding ikozvino haifaniri kunge yakakura, iyo inenge 20% pasi peiyo carbon steel electrodes. Iyo arc haifaniri kunge yakareba, uye interlayers ichatonhora nokukurumidza. A nhete weld bead yakakodzera.
Mapoinzi akakosha uye kungwarira kweStainless simbi welding
1. Shandisa magetsi ane vertical ekunze maitiro, uye shandisa yakanaka polarity yeDC (waya yewelding yakabatana nedanda rakashata)
1. Inowanzo fanirwa kusungira mahwendefa matete pasi pe6mm. Iyo ine hunhu hwekunakisa welding seam chimiro uye diki welding deformation.
2. Iyo gasi inodzivirira ndeye argon nekuchena kwe99.99%. Kana iyo welding ikozvino iri 50 ~ 150A, iyo argon gasi inoyerera ndeye 8 ~ 10L / min; kana ikozvino iri 150 ~ 250A, iyo argon gasi inoyerera iri 12 ~ 15L/min.
3. Kureba kwakabuda kwe tungsten electrode kubva mumuromo wegesi inodiwa 4 kusvika ku5 mm. Munzvimbo dzisina kudzivirirwa kwakashata senge fillet welds, iri 2 kusvika 3 mm. Munzvimbo dzine migero yakadzika, iri 5 kusvika 6 mm. Nhambwe kubva pamuromo kuenda kubasa kazhinji haisi kupfuura 15mm.
4. Kuti udzivise kuitika kwekuputira pores, chero ngura, mavara emafuta, nezvimwewo pane chikamu chekugadzira chinofanira kucheneswa.
5. The welding arc kureba zviri nani 2 ~ 4mm kana welding zvakajairika simbi, uye 1 ~ 3mm kana welding Stainless simbi. Kana yakarebesa, mhedzisiro yekudzivirira ichave yakashata.
6. Panguva yekubatana kwebutt, kuitira kudzivirira rutivi rwemashure ezasi weld bead kubva kune oxidized, rutivi rwemashure runodawo kuchengetedzwa negesi.
7. Kuitira kuti argon gasi richengetedze zvakanaka dziva rekuputira uye kufambisa basa rekuisa, mutsara wepakati we tungsten electrode uye workpiece panzvimbo yewelding inofanirwa kuchengetedza kona ye80 ~ 85 °, uye kona iri pakati pe. filler wire uye pamusoro pe workpiece inofanira kuva duku sezvinobvira. Kazhinji inenge 10 °.
8. Inodzivirira mhepo uye inofefetera. Munzvimbo dzine mhepo, iva nechokwadi chekutora matanho ekuvhara mambure, uye kutora matanho akakodzera ekufemesa mukati memba.
2. Mapoinzi akakosha uye kungwarira kweMIG welding yesimbi isina tsvina
1. Shandisa flat characteristic welding power source, uye shandisa reverse polarity yeDC (waya yewelding yakabatana kune yakanaka electrode)
2. Kazhinji, argon yakachena (99.99% kuchena) kana Ar + 2% O2 inoshandiswa, uye chiyero chekuyerera chiri nani 20 ~ 25L / min.
3. Arc kureba. MIG welding yesimbi isina tsvina inowanzoiswa pasi pespray transition mamiriro, uye magetsi anofanirwa kugadziridzwa kune arc kureba kwe4 kusvika 6 mm.
4. Isaipinda nemhepo. MIG welding inokanganiswa nyore nemhepo, uye dzimwe nguva mhepo inogona kukonzera pores. Naizvozvo, matanho ekudzivirira mhepo anofanirwa kutorwa chero kupi uko kumhanya kwemhepo kuri pamusoro pe0.5m/sec.
3. Mapoinzi akakosha uye kungwarira kwesimbi isina tsvina flux cored waya welding
1. Shandisa flat characteristic welding power source, uye shandisa reverse polarity panguva yeDC welding. Iwe unogona kushandisa yakajairwa CO2 welder kuti weld, asi ndapota sunungura kumanikidza pane waya yekudyisa vhiri zvishoma.
2. Iyo inodzivirira gasi inowanzova kabhoni dhaidhiyo gasi, uye gasi rinoyerera chiyero 20 ~ 25L/min.
3. Chinhambwe chakakodzera pakati peiyo welding tip uye workpiece ndeye 15 ~ 25mm.
4. Dry kuwedzera kureba, mukuru welding ikozvino inenge 15mm kana welding ikozvino iri pazasi 250A, uye anenge 20 ~ 25mm kana welding ikozvino iri pamusoro 250A inonyanya kukodzera.
Nguva yekutumira: Zvita-28-2023
