I arc ngu: Inkcazelo kunye neempawu

I arc yi ekubhobhozeni arc okwenzeka phakathi electrode ezimbini okanye electrode kunye workpiece kwaye ivumela ukuvelisa ambaxa emibini okanye ngaphezulu ngokuthi ukuwelda.

Le arc welding kuxhomekeka kokusingqongileyo apho livela khona, yahlulwe kumaqela eziliqela. Kusenokuba evulekileyo, ivaliwe, kwaye igesi uvikele.

arc Vula yhuu phandle ngalo ionization kwi ukutshiswa amasuntswana, ngokunjalo kunyuka yesinyithi kunye iindawo welding zezinto electrode. arc ezivaliweyo, yena, izibane kwamanzi. Oku kukuvumela ukuba utshintshe ukwakhiwa sukube medium kwi ukutsha kunye nokukhusela nesinyithi kwiindawo okusilelayo igcwala. I arc ke aqukuqela ion metal engumphunga kunye additive nobhobhozayo. I arc, nto leyo elivuthayo uvikele igesi aqukuqela ion igesi kunye umphunga netyhidiweyo. Oku kunceda ukuthintela igcwala amalungu, yaye ngenxa yoko kwandisa ukuthembeka kwakhiwa ezimbaxa.

Kwi arc iyahluka ngokohlobo enikeziwe lwangoku - rhoqo okanye umahluko - kunye nobude yokutsha - ukubetha okanye zokubhala. Ukongeza, i arc kunokuba ngqo okanye reverse wokwephuka.

Ngokutsho uhlobo electrode ezisetyenziswayo ukwahlula non-eziphelayo zavuleka. Ukusetyenziswa kwento enye okanye elinye i electrode kuxhomekeke iimpawu yababephethwe ngumatshini welding. I arc ukuba ivela xa usebenzisa non-eziphelayo electrode, njengokuba igama lixela, akuthethi ukugqabhuza kuyo. Xa segesi eziphelayo electrode arc yangoku linyibilike umbandela kwaye welding, ukuya intwana yokuqala.

Umsantsa arc zingahlulwa zibe kwimimandla ezintathu iimpawu: precathode, pre-anode, kunye arc shaft. Kulo umbuzo wokugcina, ie umboko arc kuye ubude eliphezulu, kunjalo, iimpawu arc, kwaye kungenzeka livela uzimisele kwimimandla okoloelektrodnymi.

Ngokubanzi, iimpawu ubephethwe arc yombane, zinokudityaniswa kule luhlu lulandelayo:

1. Ubude arc. Oku kubhekisela kumgama elipheleleyo cathode kunye nommandla anode, kwaye pewa wompu.

2. Le ombane le arc. Yeyona sum of the ombane lihla nganye kwezi ndawo: ibhuthi, kufutshane cathode kunye anode. Utshintsho kwiindawo okoloelektrodnyh ombane mkhulu kakhulu kule ndawo eseleyo.

3. Iqondo lobushushu. Kwi arc ngokuxhomekeke ukwakhiwa sukube medium, izinto electrode kunye loxinano yangoku linokufikelela lobushushu ukuya ku-12 amawaka degrees Kelvin. Nangona kunjalo, ezi ntaba na amalungiselelo ngapha moya kwesiphelo electrode. Ngenxa yokuba nkqu nolona nyango lungcono kwi nesixhobo inxalenye conductive Unamaqhuqhuva ezahlukeneyo amaqhuma, ngenxa apho kukho iseti ziikhowudi, ezithi kubonwa njengesinye. Kakade ke, ubukhulu becala kuxhomekeke iqondo lobushushu bume ye arc apho liyavutha, kwakunye enikeziwe iparameters yangoku. Umzekelo, ukuba ayinyuse le yangoku, ngokunjalo, ukwandisa ixabiso lobushushu.

Ekugqibeleni, iimpawu zangoku-ombane okanye iimpawu zangoku-ombane. Umele ukuxhomekeka lombane ubude kunye ubukhulu ye yangoku.