Ukhula nezihlahlana yizindawo eziphambili ngaphakathi kwesilinganiso sokukhethwa kwesayithi. Ngesikhathi senhlolovo yasensimini, izici ezithinta ukuqina komhubhe ngokuphelele akufanele zivele futhi zenzeke. Ukukhethwa kwezixhaso zensimbi yomhubhe nakho ikakhulukazi, futhi kukhona nezimiso ezithile ezidinga ukunakwa emisebenzini yokwakha ye-welding.
Kunamaphuzu ambalwa okufanele unake lapho i-welding tunnel nsimbi isekela:
1. Endaweni evulekile yomoya, ukwesekwa kwensimbi efakwe i-welded kungakha i-phhere uma kwenzeka. Qikelela ukuthi ungayitholi imvula neqhwa eWeld.
2. Ebusika ebandayo, uma ipuleti lensimbi lingaphezu kuka-9mm, lingafakwa ezingxenyeni eziningana. Lokhu ukuvikela amazinga okushisa angabi ngaphansi kakhulu, kepha ngokuvamile, ukufudumeza kufanele kuphothulwe ngasikhathi sinye futhi ngokuqhubekayo. Lapho i-welding, amaphutha ashiywe yi-welding kufanele asulwe kuqala, futhi i-welding ingaqhutshelwa ngemuva kokuthi ayikho inkinga.
I-3. Endaweni ephansi kagesi yokushisa, ama-electrodes kanye nezintambo ezisetshenziselwa ukusekelwa kwensimbi ye-welding kufanele kube ngama-electroden aphansi ama-hydrogen anamandla aphansi okuvutha kanye nokuqina komthelela omuhle ngaphansi kwezimo ezijwayelekile.
I-4. Izinduku ze-welding ezisetshenziselwa ukufudumeza ngaphansi kwama-degree ze-zero kumele zibe ngamazinga asemthethweni, adinga ukufakwa ebhokisini lokubhaka elingama-80 kuya ku-100 degrees Celsius, futhi asetshenziswe lapho edingeka. Uma i-electrode ibekwe ngaphansi kwe-zero isikhathi esingaphezu kwamahora amabili, idinga ukuphekwa kabusha, kepha inani lezikhathi kufanele libe ngaphansi kwezikhathi ezintathu.
Isikhathi Sokuthumela: APR-01-2022