Mashandisiro eGasi nemazvo muLaser Welding

Mune laser welding, gasi rinodzivirira richakanganisa weld kuumba, weld mhando, weld kudzika uye weld hupamhi.Muzviitiko zvakawanda, kuvhuvhuta gasi rinodzivirira kuchava nemhedzisiro yakanaka pane weld, asi zvinogona kuunza mhedzisiro yakaipa.

1. Kuvhuvhuta kwakaringana mugasi rinodzivirira kuchadzivirira zvinobudirira dziva re weld kuderedza kana kutodzivirira oxidation;

2. Kuvhuvhuta kwakaringana mugasi rekudzivirira kunogona kunyatso kudzikisa kupfapfaidza kunogadzirwa mukugadzira welding;

3. Kuvhuvhuta kwakaringana mugasi rinodzivirira kunogona kuita kuti weld pool solidification yaenzane kupararira, ita kuti weld iite yunifomu uye yakanaka;

4. Kuvhuvhuta kwakaringana kwegasi rinodzivirira kunogona kunyatso kudzikisa kudzivirira kwesimbi vapor plume kana gore replasma palaser, uye kuwedzera chiyero chekushandisa chinoshanda chelaser;

5. Kuvhuvhuta kwakaringana kwegasi rinodzivirira kunogona kudzikisa zvinobudirira porosity ye weld.

Chero bedzi rudzi rwegasi, kuyerera kwegesi uye kuvhuvhuta modhi zvakasarudzwa nenzira kwayo, iyo yakanakira mhedzisiro inogona kuwanikwa.

Zvisinei, kushandiswa kusina kunaka kwegasi rekudzivirira kunogona kukanganisawo welding.

Migumisiro yakaipa

1. Kuvhuvhuta zvisirizvo kwegasi rinodzivirira kunogona kutungamira kune weld isina kunaka:

2. Kusarudza rudzi rusina kunaka rwegasi kunogona kutungamira mukutsemuka kweweld uye kuderedza ma mechanical properties ye weld;

3. Kusarudza gasi risiri iro rinovhuvhuta kuyerera kweyero kunogona kutungamirira kune yakakomba weld oxidation (ingave iyo yekuyerera yakakura kana yakanyanya kudiki), uye zvinogonawo kuita kuti weld pool simbi ivhiringwe zvakanyanya nekunze kwesimba, zvichikonzera kudonha kwe weld kana kudonha. kusaenzana kuumba;

4. Kusarudza nzira isiriyo yekuvhuvhuta gasi kuchaita kuti kukundikana kwekudzivirira kweiyo weld kana kunyangwe kusava nemhedzisiro yekudzivirira kana kuve nemhedzisiro yakaipa pakuumba weld;

5. Kuvhuvhuta mugasi rinodzivirira kuchava nekukanganisa kudzika kwe weld, kunyanya kana ndiro yakaonda yakasungirirwa, inoderedza kudzika kweweld.

Rudzi rwekudzivirira gasi

Iwo anowanzo shandiswa laser welding ekudzivirira magasi anonyanya kuve N2, Ar, Iye, ane chimiro chemuviri nemakemikari akasiyana, saka mhedzisiro paweld zvakare yakasiyana.

1. N2

Iyo ionization simba reN2 ine mwero, yakakwirira kupfuura iyo yeAri uye yakaderera pane iyo yaIye.Iyo ionization degree yeN2 yakajairika pasi pechiito chelaser, iyo inogona kuderedza zvirinani kuumbwa kweplasma gore uye nokudaro kuwedzera inoshanda inoshanda mwero welaser.Nitrogen inogona kuita nealuminium alloy uye kabhoni simbi pane imwe tembiricha, ichigadzira nitride, iyo. ichavandudza brittleness ye weld, uye kuderedza kuoma, iyo ichava nemigumisiro yakawanda yakaipa pamagetsi emagetsi ekubatanidza weld, saka hazvikurudzirwi kushandisa nitrogen kuchengetedza aluminium alloy uye carbon steel welds.

Iyo nitrogen inogadzirwa nemakemikari reaction ye nitrogen uye simbi isina tsvina inogona kuvandudza kusimba kweiyo weld joint, iyo ichave yakanakira kuvandudzwa kweiyo mechanical properties ye weld, saka nitrogen inogona kushandiswa segasi rinodzivirira pakushongedza simbi isina tsvina.

2. Ar

Ar ionization simba rine hukama kune hushoma, pasi pekuita kwelaser ionization degree yakakwira, haikodzeri kudzora kuumbwa kweplasma gore, inogona kushandisa zvinobudirira laser kuburitsa imwe mhedzisiro, asi chiitiko cheAr chakaderera, zvakaoma kuita nesimbi dzakajairwa, uye mutengo weAr hauna kukwirira, uyezve, kuwanda kweAr kwakakura, kunobatsira kunyura kune dziva rakanyungudutswa riri pamusoro, Inogona kudzivirira zvirinani dziva re weld, saka rinogona kushandiswa seyakajairwa. kudzivirira gasi.

3. Iye

Ane simba repamusoro reionization, pasi pesimba re laser ionization dhigirii yakaderera, inogona kunyatso kudzora kuumbwa kweplasma gore, laser inogona kushanda zvakanaka musimbi, WeChat nhamba yeruzhinji: micro welder, basa uye Iye akaderera kwazvo, basic haibatike nesimbi, igasi rinodzivirira rinodzivirira, asi Anodhura zvakanyanya,Gasi harishandiswe kugadzira zvigadzirwa zvakawanda, uye Iye anoshandiswa patsvakiridzo yesainzi kana zvigadzirwa zvepamusoro-soro.