Isingeniso: Kungani Ukushisela Amashidi Akhandisiwe Kuyinselele Kakhudlwana?
Nakuba amashidi ensimbi enziwe uthayela enezinto ezinhle kakhulu zokulwa{0}}nokugqwala, aphinde abe nezinselelo zokushisela. I-Zinc inephuzu eliphansi lokuncibilika (cishe ama-degree angu-420) futhi ihwamuka kalula phakathi nenqubo yokushisela, yakha ama-pores noma i-spatter, ethinta ikhwalithi yokushisela. Ngakho-ke, uma usebenzisa i-aumshini wokushisela indawokumashidi anathayela, ukulungiswa kwenqubo ehambisanayo kanye nokulungiswa kwemishini kufanele kwamukelwe ukuze kuqinisekiswe izinga lokushisela elizinzile nelithembekile.
I. I-Zinc Layer Evaporation Eholela Emaphutha Welding
Ngesikhathi sokushisa kwe-welding, ungqimba lwe-zinc olungaphezulu lwamashidi anama-galvanized luyahwamuka ngokushesha, lukhiqize inani elikhulu legesi, elingakha kalula amaphutha njengama-pores kanye nokufakwa kwe-slag ku-weld, ukunciphisa amandla okushisela nokufaka uphawu. Ukuze unciphise izinkinga ezinjalo, wandise ngokufanele i-welding current futhi unciphise isikhathi sokushisela ukuze uzuze ukuhlanganisa okusheshayo nokunciphisa ukugcinwa komhwamuko we-zinc.
II. Ukugqoka Okulula Kwamathiphu we-Electrode, Okuthinta Ukuzinza Kwe-Welding
Izakhi ze-Zinc zisabela kalula ngezinto ze-electrode emazingeni okushisa aphezulu, okubangela i-oxidation esheshayo noma ukunamathela ithiphu le-electrode, ngaleyo ndlela kuthinte ukusebenza nokusebenza kwengcindezi. Ngakho-ke, uma usebenzisa i-aumshini wokushisela indawokumashidi anama-galvanized, kunconywa ukusebenzisa izinto ze-electrode ezinokumelana nokugqwala okuqinile, njengethusi le-chromium zirconium, nokuhlanza noma ukufaka esikhundleni sama-electrode njalo ukuze kuqinisekiswe ukuvumelana kwe-welding.
III. Ukwehluka Okukhulu Ekumelaneni Nokuxhumana, Okuthinta Ukulawula Ukushisa
Ukuba khona kwesendlalelo esinezinsimbi kushintsha ukumelana nokuxhumana phakathi kweshidi kanye ne-electrode, okuholela ekushiseni okungazinzile kwe-welding, okubuye kuthinte izinga lokushisela. Ukuze ubhekane nalokhu, lungisa ngokufanelekile ingcindezi ye-welding kanye nemingcele yamanje ngokusho kobukhulu beshidi lika-galvanized kanye nongqimba lwe-zinc ukuze kuqinisekiswe ukushisa okufanayo nokulawulekayo.
IV. I-Spatter Ye-Welding Eyeqile, Ethinta Ukubukeka kanye Nempumelelo
Ngenxa yezinga eliphansi lokubilisa le-zinc, amagesi akhiqizwa phakathi nenqubo yokushisela angabangela kalula i-spatter, engathinti nje ukuhlanzeka kwendawo yokushisela kodwa futhi engase ibangele umonakalo kumishini kanye nabaqhubi. Izixazululo zale nkinga zibandakanya ukwenza ngcono ukuma kwe-electrode, ukuthuthukisa isivinini sokuphendula sohlelo lokucindezela, nokusebenzisa izindlela zokucindezela okunyathelayo.
Isiphetho: Ukubhekana Nesayensi Nobunzima Bokushisela Amashidi Akhandisiwe Kungukhiye
Ngokufigqiwe,imishini yokushisela amabalaamashidi kathayela abhekana nobunzima obuningi phakathi nenqubo yokushisela, okuhlanganisa ukuhwamuka kongqimba lwe-zinc, ukuguga kwe-electrode, ukumelana nokuxhumana okungazinzile, ne-spatter yokushisela. Ngokulungiselela imingcele yokushisela, ukukhetha izinto ezifanele ze-electrode, nokuqinisa ukugcinwa kwemishini nokuphathwa kwenqubo, ikhwalithi yokushisela nokusebenza kahle kokukhiqiza kungathuthukiswa ngempumelelo. Ngokuthuthukiswa kobuchwepheshe bokushisela obuhlakaniphile, ikusasaimishini yokushisela amabalaamashidi anamathani azonemba futhi azinze, asekele{0}}ukuthuthukiswa kwekhwalithi ephezulu yokukhiqiza.
