Mapaipi esimbi ane galvanized zvinhu zvinowanzoshandiswa muhupenyu hwazvino, uye welding ndiyo inonyanya kushandiswa nzira yekubatanidza. Unhu hwekushongedza hunoenderana zvakananga nekuchengetedza uye kugadzikana kwechigadzirwa. Saka ndeapi matambudziko atinofanira kutarisisa kuti tive nechokwadi chemhando yezvigadzirwa zvakasungwa?

1. Simbi pombi ukobvu Mukugadzira uye kushandiswa kwe welded simbi pombi, ukobvu hwesimbi pombi ndiyo inokosha zvikuru parameter. Nekudaro, nekuda kwekugadzira nekugadzirisa zvikonzero, ukobvu hwepombi yesimbi hunogona kuve nekutsauka. Iyi miyero inotsanangura zvimiro zvakaita sehukuru, ukobvu, uremu, uye kushivirira kwepombi dzesimbi dzakasungwa kuti ive nechokwadi chemhando uye kuchengetedzeka kwepombi dzesimbi. Kutsauka kwehukobvu hwemapombi esimbi akasungwa kunogona kukanganisa kunaka uye kuchengetedzwa kwepombi dzesimbi. Kana kutsauswa kwehupamhi hwepombi yesimbi yakakura zvikuru, inogona kukonzera kukwanisa kwekutakura kwepombi yesimbi kuderera, zvichiita kuti kuchengeteka uye kugadzikana kwechigadzirwa. Kudzora kutsauka kwehupamhi hwepombi dzesimbi dzakashongedzwa, zviyero zvepasi rose zvinowanzo tsanangura zviyero zvekutsauka kunobvumidzwa kwehukobvu hwemapombi esimbi akasungwa. Mukugadzira uye kushandiswa chaiko, zvinodikanwa kunyatso kudzora uye kutonga zvinoenderana nemazinga kuti uve nechokwadi chemhando uye kuchengetedzwa kwepombi dzesimbi.

Isu tinonyatso kudzora ukobvu hwemapombi esimbi. Kune mapaipi esimbi emhando imwe chete, kushivirira kwehupamhi ndeye ± 5%. Isu tinonyatso kudzora kunaka kwepombi imwe neimwe yesimbi. Isu tinoitisa bvunzo dzehukobvu pane yega yega pombi dzesimbi kudzivirira zvigadzirwa zvisina kukodzera kupinda mumusika, kuchengetedza kodzero uye zvido zvevatengi, uye ive nechokwadi chekuchengetedza uye kuvimbika kwepombi imwe neimwe yesimbi.

2. Munguva yekugadzira simbi mapaipi, chimwe chinhu chakakosha ndechekurapwa kwemuromo wepombi yepombi yesimbi. Ingave yakakodzera kusungirirwa inobata zvakanyanya kunaka kwechigadzirwa chakapedzwa mushure mekuputika. Chokutanga pane zvose, zvakakosha kuchengetedza muromo wepombi isina ngura inoyangarara, tsvina, uye girizi. Tsvina idzi dzinokanganisa zvakanyanya kunaka kwewelding, izvo zvinozoita kuti weld ive isina kuenzana uye yakatyoka panguva yewelding, uye kunyange kukanganisa iyo yese welding chigadzirwa. The flatness of the cross-section zvakare inyaya yakakosha iyo inofanirwa kuitwa pamberi pewelding. Kana chikamu chemuchinjikwa chakanyanya kunyura, chichaita kuti pombi yesimbi ikotame uye ionekwe pakona, inokanganisa kushandiswa. Kana welding, maburrs, uye zvakanamirwa pakuputsika kwepombi yesimbi zvinofanirwawo kuongororwa, zvikasadaro hazvizosungirwe. Mabhura papombi yesimbi achakwenyawo vashandi uye kukuvadza zvipfeko zvavo pavanenge vachigadzira, izvo zvinokanganisa zvakanyanya kuchengetedzwa.

Tichifunga nezvematambudziko ekugezesa evashandisi, isu takawedzera pombi muromo kugadzirisa maitiro mukuita kuti ive nechokwadi chekuti pombi yemuromo interface yakatsetseka, yakapfava, uye isina burr-isina. Paunenge uchishandisa simbi pombi welding, hapana chikonzero chekucheka zvakare muromo wepombi, izvo zviri nyore kuti vashandisi vagadzire mukushandiswa kwezuva nezuva. Kuitwa kwemaitiro aya hakungoite kuderedza kuparara kwezvimedu zvataifanira kuona mu welding zvisati zvaitika, asiwo kuwedzera kugadzirwa kwekugadzira, kuderedza deformation ye welding, uye kuwedzera kuvandudza kunaka kwezvigadzirwa.

3. Weld Iyo weld yesimbi pombi inoreva weld inogadzirwa nesimbi pombi panguva yewelding process. Unhu hwepimbi yesimbi weld inobata zvakananga kushanda uye kuchengeteka kwepombi yesimbi. Kana paine kukanganisa mupombi yesimbi weld, senge pores, slag inclusions, kuputika, nezvimwewo, zvinokanganisa kusimba uye kuiswa chisimbiso chepombi yesimbi, zvichikonzera kudonha uye kutsemuka kwepombi yesimbi panguva yekugadzira, zvichikanganisa. kunaka uye kuchengeteka kwechigadzirwa.

Kuti tive nechokwadi chemhando ye welds, isu takawedzera turbine weld yekuona michina kumutsara wekugadzira kuti uone iyo weld mamiriro ega ega pombi yesimbi. Kana paine dambudziko reweld panguva yekugadzira, alarm inozoridzwa nekukasira kudzivirira zvigadzirwa zvinonetsa kubva pakuiswa mupakeji yechigadzirwa. Isu tinoitisa bvunzo dzisiri dzekuparadza, ongororo yemetallographic, yekuyedza zvivakwa zvemuchina, nezvimwe pabatch imwe neimwe yepombi dzesimbi dzinosiya fekitori kuti ive nechokwadi chekuti vatengi vepasi havasangane nematambudziko akadai sekusagadzikana kwekuita kwechigadzirwa uye kunonoka kufambira mberi nekuda kwekunetseka kwepombi yesimbi panguva yekugadzirisa. mabasa.