Amaphutha ajwayele ukwenzeka endaweni ye-arc welding engaphansi kwamanzi ahlanganisa ama-pores, imifantu eshisayo, nama-undercuts.

1. Amabhamuza. Amabhamuza avela kakhulu phakathi nendawo yokushisela. Isizathu esiyinhloko ukuthi i-hydrogen isafihliwe ensimbi eshiselwe ngendlela yamabhamuza. Ngakho-ke, izinyathelo zokuqeda lesi sici ukuqala ukususa ukugqwala, uwoyela, amanzi, nomswakama ocingweni lokushisela kanye ne-weld, futhi okwesibili, ukomisa i-flux kahle ukuze ususe umswakama. Ngaphezu kwalokho, ukwandisa i-current, ukunciphisa isivinini sokushisela, nokunciphisa izinga lokuqiniswa kwensimbi encibilikisiwe nakho kusebenza kakhulu.

2. Imifantu yesibabule (imifantu ebangelwa isibabule). Lapho amapuleti e-welding anamabhande okuhlukanisa isibabule aqinile (ikakhulukazi insimbi ebilayo ethambile), ama-sulfide ebhande lokuhlukanisa isibabule angena ensimbi yokushisela futhi abangele imifantu. Isizathu siwukuthi kunendawo encibilikayo ephansi ye-iron sulfide ebhandeni lokuhlukanisa isibabule kanye ne-hydrogen ensimbi. Ngakho-ke, ukuvimbela lesi simo ukuthi singenzeki, kuphumelela ukusebenzisa insimbi ebulewe kancane noma insimbi ebulewe ngamabhande ambalwa okuhlukanisa isulfure. Okwesibili, ukuhlanza nokomisa i-weld surface kanye ne-flux nakho kuyadingeka kakhulu.

3. Imifantu eshisayo. Ekushiseleni kwe-arc engaphansi kwamanzi, imifantu eshisayo ingenzeka ku-weld, ikakhulukazi emigodini ye-arc ekuqaleni nasekupheleni kwe-arc. Ukuze kuqedwe ukuqhekeka okunjalo, ama-pads avame ukufakwa ekuqaleni nasekupheleni kwe-arc, futhi ekupheleni kwe-coil welding ye-plate, ipayipi elihlanganisiwe le-spiral lingahlehliswa futhi lihlanganiswe phakathi. Ukuqhekeka okushisayo kulula ukwenzeka lapho ukucindezeleka kwe-weld kukhulu kakhulu noma insimbi ye-weld iphezulu kakhulu.

4. Ukufakwa kwe-slag. Ukufakwa kwe-slag kusho ukuthi ingxenye ye-slag ihlala ensimbi yokushisela.

5. Ukungena kahle. Ukugqagqana kwezinsimbi zokushisela ngaphakathi nangaphandle akwanele, futhi ngezinye izikhathi akushiselwe. Lesi simo sibizwa ngokuthi ukungena okwanele.

6. I-Undercut. I-Undercut iwumsele omise okwe-V onqenqemeni lwe-weld eduze komugqa omaphakathi we-weld. I-Undercut ibangelwa izimo ezingalungile njengesivinini sokushisela, i-current, ne-voltage. Phakathi kwazo, isivinini esiphezulu kakhulu sokushisela kungenzeka sibangele ukukhubazeka kwe-undercut kuneyamanje engafanele.