Laser welding-a ngaihthah theih loh 'gas' hmuh theih loh leh hmuh theih loh chuan shielding gas a kawk a ni. A thlan hian direct takin welding siam chhuahna quality, efficiency leh cost a nghawng a ni. Vawiin, Hangao Tech chuan shielding gas nena inzawm hriatna chungchang a sawipui ang che.
1. Protective Atmosphere chanvo .
Laser welding-ah chuan shielding gas hian weld shape, weld quality, weld penetration leh penetration width te a nghawng dawn a ni. A tam zawkah chuan blowing shielding gas hian weld-ah nghawng ha tak a nei ang a, mahse a ha lo hle thei bawk.
Positive effects .
1) shielding gas insufflation dik tak chuan weld pool chu oxidation tihtlem emaw, pumpelh emaw turin tha takin a veng ang;
2) Shielding gas blowing dik tak chuan welding process chhunga spatter siam chhuah chu a ti tlem thei a;
3) Protective gas insufflation dik tak chuan weld pool chu a solidified hunah uniform spreading a tichak thei a, weld shape chu uniform leh mawi takin a siam thei a
4) Protective gas dik taka blowing hian laser-a metal vapor plume emaw plasma cloud emaw shielding effect chu a ti tlem thei a, laser hmanna rate effective tak a tipung thei bawk
5) Shielding gas blowing dik chuan weld porosity a ti tlem thei hle.
Gas chi, gas flow rate, leh insufflation method te chu dik taka thlan a nih chhung chuan ideal effect chu a hmu thei a ni. Mahse, shielding gas hman dik loh hian welding-ah nghawng tha lo tak a nei thei bawk.
A nghawng tha lo .
1) shielding gas insuan dik lohna chuan weld seam tha lo a thlen thei a;
2) gas chi dik lo thlan hian weld-ah crack a thlen thei a, weld-a mechanical property tlahniam pawh a thlen thei bawk;
3) Gas blowing flow rate dik lo thlan hian weld oxidation na zawk a thlen thei a (flow rate a lian lutuk emaw, a tlem lutuk emaw pawh nise), weld pool metal chu pawn lam thiltihtheihnain nasa takin a tibuai thei bawk a, chu chuan weld collapse emaw uneven forming emaw a thlen thei bawk
4) Gas injection dan dik lo thlan chuan weld chu a venghim thei lo emaw, a bul berah chuan a humhimna effect a awm lo emaw, weld formation a nghawng tha lo emaw a ni thei ang
5) Protective gas insufflation hian weld penetration ah nghawng engemaw tak a nei ang a, a bik takin welding thin plates ah chuan weld penetration a ti tlem ang.
2. Protective gas chi hrang hrang .
Laser welding atana shielding gas hman tlanglawn ber berte chu nitrogen, argon, leh helium te an ni a, an taksa leh chemical property te pawh a danglam a, chuvangin weld-a nghawng pawh a danglam hle.
1) Nitrogen .
Nitrogen-a ionization energy chu a hniam a, argon aiin a sang zawk a, helium aiin a hniam zawk a, laser action hnuaia ionization degree chu average a ni a, chu chuan plasma cloud siam a ti tlem zawk thei a, chu chuan laser-a effective utilization rate a tipung thei a ni. Nitrogen hian aluminum alloy leh carbon steel te chu temperature engemaw chen ah chemical hmangin an inrem thei a, chu chuan nitrides a siam thei a, chu chuan weld brittleness a tipung ang a, toughness a ti tlem ang a, weld joint mechanical property ah adverse effect nasa zawk a nei ang a, chuvangin aluminum alloy leh carbon steel welds te tan nitrogen hman a tha lo a, chu chu protection atan a ni.
Nitrogen leh stainless steel inkar chemical reaction atanga nitrogen lo chhuak hian weld joint chakna a tipung thei a, hei hian weld mechanical property a ti tha thei a, chuvangin nitrogen hi stainless steel weld-naah shielding gas atan hman theih a ni.
2) Argon .
Argon-a ionization energy hi a hniam ber a, ionization degree hi laser hnathawh hnuaiah a sang hle a, hei hi plasma clouds siam dan control nan a tha lo a, laser hman tangkai danah nghawng engemaw tak a nei ang. Mahse, argon hian activity a nei tlem hle a, common metals nena inzawm a harsa hle. Chemical reaction a awm a, argon man pawh a sang lo. Chu bakah, argon density a sang hle a, hei hi weld pool chung lama pil theihna tur a ni a, chu chuan weld pool chu a venghim tha zawk a, chuvangin shielding gas hman dan pangngai angin hman theih a ni bawk.
3) Helium .
Helium ionization energy hi a sang ber a, ionization degree hi laser hnathawh hnuaiah a hniam hle a, hei hian plasma cloud siam dan a control tha thei hle. Laser hian metals-ah hna a thawk tha thei a, helium activity pawh a hniam hle a, a bul berah chuan metal nen chemical hmangin a inrem lo. , hi welding seam shielding gas tha tak a ni a, mahse helium man hi a sang lutuk a, a tlangpuiin mass-produced products hian he gas hi an hmang lo. Helium hi scientific research emaw products added value sang tak nei tan chuan hman tlangpui a ni.
100 chungchanga zawhna emaw mamawh emaw i neih chuan. Laser Welding Pipe Making Machine Tube Mill Production Line , inbiakpawhna atan min rawn biak theih reng e.
