Makina owotcherera a laser ndi mtundu wa zida zowotcherera zomwe zimagwiritsidwa ntchito kwambiri popanga mafakitale, ndipo ndi makina ofunikira kwambiri pokonza zinthu za laser. Kuyambira pakupanga makina owotcherera a laser mpaka ukadaulo wamakono, mitundu yambiri ya makina owotcherera yapangidwa, kuphatikizapo makina owotcherera a laser omwe amagwiritsidwa ntchito kwambiri m'manja, othandizira mwamphamvu pantchito zowotcherera.
Bwanji mugwiritse ntchito mpweya woteteza powotcherera ndi makina owotcherera a laser ogwiritsidwa ntchito m'manja? Makina owotcherera a laser ogwiritsidwa ntchito m'manja ndi njira yatsopano yowotcherera, makamaka yowotcherera zinthu zokhala ndi makoma ochepa komanso zigawo zolondola, zomwe zimatha kupangitsa kuti malo awotchetsedwe, kuwotcherera matako awo, kuwotcherera pamiyendo yawo, kuwotcherera kotseka, ndi zina zotero, ndi chiŵerengero chakuya kwambiri, m'lifupi mwake, ndi kutentha. Malo ang'onoang'ono okhudzidwa, kusintha pang'ono, liwiro lowotcherera mwachangu, msoko wosalala komanso wokongola wowotcherera, palibe chifukwa chothana ndi kapena kungofunika chithandizo chosavuta mukawotcherera, msoko wowotcherera wapamwamba kwambiri, wopanda porosity, kuwongolera kolondola, malo ochepa olunjika, kulondola kwakukulu, komanso kosavuta kuzindikira.
1. Imatha kuteteza lenzi yolunjika ku kuipitsidwa ndi nthunzi yachitsulo ndi kuphulika kwa madontho amadzimadzi
Mpweya woteteza umatha kuteteza lenzi yolunjika ya makina owetera laser ku kuipitsidwa ndi nthunzi yachitsulo ndi kutulutsa kwa madontho amadzimadzi, makamaka pakuwotcherera kwamphamvu kwambiri, chifukwa kutulutsa kumakhala kwamphamvu kwambiri, ndipo ndikofunikira kwambiri kuteteza lenzi panthawiyi.
2. Mpweya woteteza umathandiza kwambiri pochotsa chitetezo cha plasma ku kuwotcherera kwa laser yamphamvu kwambiri
Nthunzi yachitsulo imatenga kuwala kwa laser ndikuyiyika mu mtambo wa plasma, ndipo mpweya woteteza wozungulira nthunzi yachitsulo umayikiridwanso chifukwa cha kutentha. Ngati pali plasma yochuluka kwambiri, kuwala kwa laser kumadyedwa pang'ono ndi plasma. Plasma imakhalapo pamalo ogwirira ntchito ngati mphamvu yachiwiri, zomwe zimapangitsa kuti kulowa kwake kukhale kochepa ndipo pamwamba pa dziwe losungunula pakhale pokulirapo.
Kuchuluka kwa ma elekitironi ogwirizana kumawonjezeka powonjezera kugongana kwa ma elekitironi ndi ma ayoni ndi ma atomu osalowerera kuti achepetse kuchuluka kwa ma elekitironi mu plasma. Ma atomu osalowerera akakhala opepuka, kuchuluka kwa kugongana kumakhala kwakukulu komanso kuchuluka kwa kugongana kumakhala kwakukulu; kumbali ina, mpweya woteteza wokhala ndi mphamvu zambiri za ionization sudzawonjezera kuchuluka kwa ma elekitironi chifukwa cha ionization ya mpweya wokha.
3. Mpweya woteteza ungateteze workpiece ku okosijeni panthawi yowotcherera
Makina ochapira a laser ayenera kugwiritsa ntchito mtundu wina wa gasi chitetezo, ndipo pulogalamuyi iyenera kukhazikitsidwa mwanjira yoti mpweya woteteza utulutsidwe kaye kenako laser itulutsidwe, kuti aletse kukhuthala kwa laser yoyendetsedwa panthawi yokonza mosalekeza. Mpweya wosagwira ntchito umatha kuteteza dziwe losungunuka. Pamene zipangizo zina zimakulungidwa mosasamala kanthu za kukhuthala kwa pamwamba, chitetezocho sichingaganiziridwe, koma pa ntchito zambiri, helium, argon, nayitrogeni ndi mpweya wina nthawi zambiri amagwiritsidwa ntchito ngati chitetezo kuti ntchito isakulungidwe panthawi yolungidwa.
4. Kapangidwe ka mabowo a nozzle
Mpweya woteteza umalowetsedwa ndi mphamvu inayake kudzera mu nozzle kuti ufike pamwamba pa chogwirira ntchito. Kapangidwe ka hydrodynamic ka nozzle ndi kukula kwa chotulutsira n'kofunika kwambiri. Iyenera kukhala yayikulu mokwanira kuyendetsa mpweya woteteza wopopera kuti uphimbe pamwamba pa cholumikizira, koma kuti iteteze bwino lenzi ndikuletsa nthunzi yachitsulo kuti isaipitse kapena kuwononga chitsulo, kukula kwa nozzle kuyeneranso kukhala kochepa. Kuthamanga kwa madzi kuyeneranso kulamulidwa, apo ayi kuyenda kwa laminar kwa mpweya woteteza kudzasokonekera, ndipo mlengalenga udzakhudzidwa ndi dziwe losungunuka, pamapeto pake kupanga ma pores.
Pakuwotcherera pogwiritsa ntchito laser, mpweya woteteza umakhudza mawonekedwe a weld, mtundu wa weld, kulowa kwa weld ndi kukula kwa kulowa. Nthawi zambiri, mpweya woteteza umakhudza bwino weld, koma ukhozanso kubweretsa zotsatira zoyipa.
Udindo Wabwino:
1) Kuwomba mpweya woteteza bwino kudzateteza bwino dziwe losungunula kuti lichepetse kapena kupewa kukhuthala kwa okosijeni;
2) Kuwomba mpweya woteteza bwino kungachepetse bwino kutayikira komwe kumachitika panthawi yowotcherera;
3) Kutulutsa mpweya woteteza bwino kungathandize kuti dziwe losungunula lifalikire mofanana pamene likulimba, zomwe zimapangitsa kuti mawonekedwe a dziwelo akhale ofanana komanso okongola;
4) Kuwomba mpweya woteteza molondola kungachepetse bwino mphamvu yoteteza ya nthunzi yachitsulo kapena mtambo wa plasma pa laser, ndikuwonjezera kuchuluka kwa kugwiritsa ntchito bwino kwa laser;
5) Kupopera mpweya woteteza bwino kungathandize kuchepetsa kusweka kwa mpweya.
Bola mtundu wa mpweya, kuchuluka kwa mpweya wotuluka, ndi njira yopumira zili zolondola, zitha kukhala ndi zotsatira zabwino. Komabe, kugwiritsa ntchito molakwika mpweya woteteza kudzabweretsanso zotsatira zoyipa pa kuwotcherera.
Zotsatirapo Zoipa:
1) Kusakwanira bwino kwa mpweya woteteza kungayambitse kusagwira bwino ntchito kwa ma weld:
2) Kusankha mtundu wolakwika wa mpweya kungayambitse ming'alu mu weld, komanso kungayambitse kuchepa kwa mphamvu za makina a weld;
3) Kusankha kuchuluka kolakwika kwa mpweya wotulutsa mpweya kungayambitse kusungunuka kwakukulu kwa weld (kaya kuchuluka kwa madzi ndi kwakukulu kapena kochepa), ndipo kungayambitsenso kuti chitsulo cha weld chisokonezeke kwambiri ndi mphamvu zakunja, zomwe zimapangitsa kuti weld igwe kapena kupanga kosagwirizana;
4) Kusankha njira yolakwika yopangira mpweya kudzapangitsa kuti weld ilephere kukwaniritsa chitetezo kapena kuti isakhale ndi chitetezo kapena kusokoneza kapangidwe ka weld;
5) Kuchuluka kwa mpweya woteteza kudzakhudza kwambiri kulowa kwa weld, makamaka polumikiza mbale zopyapyala, kumachepetsa kulowa kwa weld.
Kawirikawiri, helium imagwiritsidwa ntchito ngati mpweya woteteza, womwe ungachepetse kwambiri plasma, motero umawonjezera kuzama kwa kulowa ndikuwonjezera liwiro la kuwotcherera; ndipo ndi wopepuka kulemera kwake ndipo ukhoza kutuluka, ndipo sizophweka kuyambitsa ma pores. Zachidziwikire, kuchokera ku zotsatira zathu zenizeni zowotcherera, zotsatira za kugwiritsa ntchito chitetezo cha argon sizoipa.
Ngati mukufuna kudziwa zambiri zokhudza kuwotcherera pogwiritsa ntchito laser, kapena mukufuna kugula makina abwino kwambiri owotcherera pogwiritsa ntchito laser,chonde siyani uthenga patsamba lathu ndipo titumizireni imelo mwachindunji!
Nthawi yotumizira: Feb-04-2023
