Mushure mekupedzwa kweiyo nut spot welding process, zvakakosha kuti uongorore kunaka uye kuvimbika kweiyo welds. Kuita zviedzo zvepashure-weld zvinopa ruzivo rwakakosha mumichina yeweld, simba, uye chimiro chekuvimbika. Ichi chinyorwa chinoongorora nzira dzakasiyana dzekuyedza dzinogona kuitwa kuongorora uye kuongorora nut spot welds.
- Tensile Testing: Tensile bvunzo inowanzo shandiswa kuongorora michina zvivakwa uye kusimba kwemajoini akasungwa. Muchiyedzo ichi, nhevedzano yemasampuli akaiswa welded anoiswa pasi pesimba rekumanikidza kusvika kukundikana. Mhedzisiro yacho inopa ruzivo nezve ekupedzisira kusimba kwesimba, goho simba, kurebesa, uye kutsemuka maitiro emawelds, zvichibatsira kuongorora kuita kwavo kwese uye kukodzera kwechinodiwa chikumbiro.
- Shear Testing: Shear kuyedzwa kwakanyatso kugadzirirwa kuongorora simba rekugera uye kuramba kwemavara welds. Muedzo uyu unosanganisira kuisa masampula akasungwa kune simba rekuveura kusvika kukundikana kwaitika. Iyo data yakawanikwa, kusanganisira shear mutoro, kutama, uye kutadza maitiro, inogonesa kutsunga kweiyo weld's shear simba uye kugona kwayo kutsungirira mitoro yakaiswa.
- Microstructural Analysis: Microstructural analysis inobvumira kuongororwa kwechimiro chemukati che weld uye inopa ruzivo rwezviyo zvayo, nzvimbo inopisa, uye chero ipi zvayo inogona kukanganisa kana kurega. Matekiniki akadai semetallography, microscope, uye scanning electron microscopy (SEM) inogona kushandiswa kutarisa uye kuongorora iyo weld's microstructure, ichibatsira mukuongorora kunaka kwayo uye kuona chero nyaya dzinogona kukanganisa kushanda kwayo.
- Kuomarara Kuyedzwa: Kuyedzwa kwekuoma kunoitwa kuyera kuomarara kugovera munzvimbo yese weld. Muedzo uyu unobatsira kuongorora kurongeka kweweld uye kuongorora kuvepo kwechero nzvimbo dzakapfava kana dzakaoma dzinogona kukanganisa kusimba kwayo nekusimba kwayo. Matekinoroji akaita seVickers kana Rockwell kuomarara kwekuyedza anogona kushandiswa kuyera kuoma kweiyo weld uye kuona chero misiyano mukati mejoini yakasungwa.
- Kusina-Kuparadza Kuedza (NDT): Kusina-kuparadza kuyedza matekiniki, senge ultrasonic bvunzo, eddy ikozvino kuyedza, kana radiographic bvunzo, inogona kushandiswa kuongorora mukati mukati mewelds pasina kukuvadza. Idzi nzira dzinogona kuona kuremara, sekutsemuka, voids, kana inclusions, kuve nechokwadi chekuti welds inosangana nezvinodiwa uye zvakatemwa.
Kuita zviyedzo zvepashure-weld kwakakosha pakuongorora mhando, simba, uye chimiro chekuvimbika kwe nut spot welds. Tensile kuyedza, shear kuyedzwa, microstructural ongororo, kuomarara kuyedzwa, uye kusiri-kuparadza kuyedza matekiniki akakosha anopa ruzivo rwakakosha nezve welds' mechaniki zvivakwa, chimiro chemukati, uye hurema hunogona kuitika. Nekuita zviedzo izvi, mainjiniya nemawelder vanogona kuve nechokwadi chekuti welds inosangana nezvinodiwa uye zvinodiwa, nekudaro vachiva nechokwadi chekuvimbika kwavo uye kuita kwavo mumashandisirwo epasirese.
Nguva yekutumira: Jun-15-2023
