Pakati pemavharuvhu anomanikidza of mapaipi emaindasitiri, mavharuvhu esimbianoshandiswa zvakanyanya nekuda kwehupfumi hwavo hwemari uye dhizaini inoshanduka.Nekudaro, nekuti maitiro ekukanda anoganhurirwa nehukuru, kukora kwemadziro, mamiriro ekunze, zvigadzirwa uye mashandiro ekuvaka kwekukanda, kukanganisa kwakasiyana-siyana senge blisters, pores, kuputika, shrinkage porosity, shrinkage cavities uye inclusions ichaonekwa mune castings, kunyanya masimbi ekukanda jecha.Steel castings kune zvimwe.Nekuti kuwanda kwezvinhu zvinosanganiswa musimbi, kunowedzera kunyorova kwesimbi yakanyungudutswa, ndiko kunoita kuti ibudise hurema hwekukanda.Naizvozvo, kuzivikanwa kwekuremara uye kugadzirwa kweanonzwisisika, ehupfumi, anoshanda uye akavimbika ekugadzirisa welding process kuti ave nechokwadi chekuti valve mushure mekugadzirisa welding inosangana nezvinodiwa zvemhando yave chinhu chinowanzoitika mukupisa uye kutonhora kwekugadzirisa.mavharuvhu.Ichi chinyorwa chinozivisa nzira yekugadzirisa welding uye ruzivo rwezvakati wandei zvakajairika simbi yekukanda kukanganisa (iyo welding tsvimbo inomiririrwa neyekare brand).
Kukanganisa kubata
1. Kukanganisa kusarudza
Muchiito chekugadzira, zvimwe zvirema zvekukanda hazvibvumidzwe kugadzirisa welding, senge pakatsemuka, kupinda mukati (kunopinda pasi), pores yemuzinga, jecha rinosanganisirwa risingakwanisi kubviswa, uye shrinkage porosity ine nzvimbo inopfuura 65 square centimeters, nezvimwewo. uye Zvimwe zvakakanganisika zvikuru zvisingagoni kugadziriswa sezvakabvumiranwa muchibvumirano pakati pemapato maviri.Mhando yekuremara inofanira kutongwa isati yagadzirisa welding.
2. Kubvisa kukanganisa
Mufekitori, kabhoni arc air gouging inowanzo shandiswa kufuridzira kunze kukanganisa, uye ipapo inotakurika angle grinder inoshandiswa kukwenenzvera mativi akaremara kuratidza simbi inopenya.Asi mukuita kwekugadzira, zvakanyanya kushandisa kabhoni simbi electrode ine yakakwira ikozvino kubvisa kuremara, uye kushandisa angle grinder kukuya kunze simbi inopenya.Kazhinji, kukanganisa kwekukanda kunogona kubviswa nekushandisa <4mm-J422 electrode uye ikozvino ye160-180A kubvisa kukanganisa.Chigayo chekona chinokuya chirema kuita chimiro cheU kuderedza kushushikana kwewelding.Izvo zvinokanganisa zvakabviswa zvachose, uye kugadzirisa welding quality yakanaka.
3. Preheating yezvikamu zvisina kukwana
Kune kabhoni simbi uye austenitic Stainless simbi castings, uko nzvimbo yekugadziridza welding chikamu isingasviki 65cm2 uye kudzika kuri pasi pe20% kana 25mm yekukora kwekukanda, preheating kazhinji haidiwe.Nekudaro, kune pearlitic simbi yekukandira seZG15Cr1Mo1V uye ZGCr5Mo, nekuda kwekuomesa kwakanyanya kwesimbi uye kutsemuka kuri nyore mukutonhora kwewelding, preheating inofanirwa kuitwa.Nguva yekubata inofanira kunge iri 60min.Kana iyo yekukanda isingakwanisi kupiswa zvachose, inogona kupisa kusvika 300-350 ° C neokisijeni-acetylene panzvimbo yakakanganiswa uye yakawedzerwa ne 20mm (kuonekwa kwerima rakatsvuka munzvimbo ine rima), uye mwenje mukuru usina kusimba. pfuti inoshandiswa kutanga pakuremara uye nzvimbo dzakapoteredza.Swing denderedzwa nokukurumidza kwemaminitsi mashomanana, wozofamba zvishoma nezvishoma kwemaminitsi gumi (zvichienderana nehupamhi hwechirema), kuitira kuti chikanganiso chacho chive chakanyatsopisa uye chigadziriswe nokukurumidza.
Kuti uwane rumwe ruzivo, ndapota shanyawww.cvgvalves.com.Contactsales@cvgvalves.com.