Yintoni endimele ndiyenze ukuba kukho imingxuma ye-welding kwiprosesa yesakhiwo sensimbi?

Ekuqhutyweni kwezakhiwo zetsimbi, ngokukodwa kwi-welding process, kukho iinkcukacha ezininzi ekufuneka ziphawulwe kwaye zithintelwe kwangaphambili, njengendlela yokujongana ne-welding pores, okukholelwa ukuba yingxaki enameva ephazamisa abakhiqizi abaninzi bensimbi.Fumana nawe ngokulandelayo.

Okokuqala, makhe siqonde imimiselo echaphazelekayo malunga ne-welding pores kwi-steel structure processing: i-welds yokuqala neyesibini yebakala ayivumelekanga ukuba ibe neziphene ze-porosity;i-welds yodidi lwesithathu ivumelekile ukuba ibe ne-diameters <0.1t kunye ne-≤3mm nge-50mm ubude bee-welds.Kukho imingxuma yomoya emi-2;isithuba somngxuma kufuneka sibe ≥ amaxesha ama-6 ububanzi bomngxuma.

Okulandelayo, siya kuhlalutya izizathu ezikhethekileyo zokuqulunqwa kwezi pores ze-welding ekuqhutyweni kwezakhiwo zetsimbi:

1. Kukho i-oil stains, i-rust spots, i-rust stains kunye nokungcola (ingakumbi amanqaku epeyinti) kwi-groove kunye noluhlu olusondeleyo olusondeleyo, enye yezizathu zokubonakala kwee-pores kwi-weld;

2. Uluhlu lwe-copper plating yocingo lwe-welding luhlanjululwe ngokuyinxenye, ukwenzela ukuba inxalenye ye-rust, kunye ne-welding seam nayo iya kuvelisa ama-pores;

3. I-post-heating (i-deoxidation) ye-workpiece engqindilili ayiqhutywa ngexesha emva kwe-welding, okanye ukushisa kwe-post-heating akwanelanga, okanye ixesha lokubamba alanelanga, elinokubangela iipores eziseleyo kwi-weld;

4. Kukho ubudlelwane obuthe ngqo phakathi kwee-pores ezingaphezulu kunye nokushisa kokubhaka kwe-welding material, isantya sokufudumala sihamba ngokukhawuleza, kwaye ixesha lokubamba alanele.

Emva kokuqonda izizathu ze-welding porosity kwi-steel structure processing, kubaluleke kakhulu ukufunda amanyathelo okuthintela:

1. Iipores ezingaphezulu kunye nenani elincinci kunye nobubanzi obuncinci bunokugutyungelwa ngevili lokugaya i-angular, de kube le nxalenye inokutshintsha ngokufanelekileyo kunye ne-weld yonke kunye nokuguqulwa ngokufanelekileyo kwisiseko sesinyithi;

2. I-workpiece engqindilili kufuneka ifudunyezwe ngaphambi kwe-welding kwaye ifikelele kwiqondo lokushisa elifunwa yinkcazo.Izixhobo zokusebenza ezishinyeneyo kufuneka zilawule ngokungqongqo ubushushu phakathi kweengoma;

3. Izinto ze-welding kufuneka zibhakwe kwaye zigcinwe zifudumele ngokwemigaqo, kwaye akufanele zibe semoyeni ngaphezu kweeyure ezingama-4 emva kokusetyenziswa;

4. Nika ingqalelo kwindawo ye-welding ngexesha le-welding.Ukuwelda kufuneka kunqunyanyiswe xa ukufuma kungaphezulu kwama-90%;Ukuwelda kwe-arc manual kwenziwa xa isantya somoya sidlula i-8m / s, kwaye i-gas shielded welding yenziwa xa isantya somoya sidlula i-2m / s.Xa iqondo lobushushu lingaphantsi kwe-0 °C, i-workpiece kufuneka ifudunyezwe ukuya kwi-20 °C, kwaye i-workpiece ekufuneka ifudunyezwe kufuneka ifudunyezwe ngama-20 °C ngeli xesha.

5. Nika ingqalelo kwiiparamitha zenkqubo ye-welding kunye nokuphucula izakhono ze-welders.Umphanda wegesi okhuselweyo ukuwelda kufuneka uvuthelwe ngomoya ocinezelweyo rhoqo ukususa ubumdaka.

Iinkcukacha zigqiba ukuphumelela okanye ukungaphumeleli, kwaye kukho amathuba amaninzi eengxaki kwi-welding, eyona nto iphawuleka ngakumbi kwi-steel structure processing.