Njengohlobo oluyingozi kakhulu lwesici sokushisela, ukuqhekeka kwe-welding kuthinta kakhulu ukusebenza, ukuphepha nokuthembeka kwezakhiwo ezishiselwe. Namuhla, ngizokwethula enye yezinhlobo zokuqhekeka - ukuqhekeka kwe-lamellar.
Imishini yokushisela i-Xinfa inezici zekhwalithi ephezulu nenani eliphansi. Ukuze uthole imininingwane, sicela uvakashele:Abakhiqizi Bezinto Zokushisela Nabasika - Imboni Yokushisela & Cutting yase-China & Suppliers (xinfatools.com)
01
Ukufakwa okungezona ezensimbi. Phakathi nenqubo yokugingqika yamapuleti ensimbi, okunye okufakiwe okungeyona insimbi (njengama-sulfide nama-silicates) ensimbi kugoqwa kube yimichilo ehambisana nokuqondisa okugoqayo, okuholela ekwehlukeni kwezakhiwo zemishini yensimbi. Ukufakwa yizici ezingase zibe khona zokudabula i-lamellar ezakhiweni ezishiselwe futhi futhi kuyimbangela eyinhloko yokuqhekeka kwe-lamellar.
02
Ingcindezi yokuzibamba. Ngenxa yomphumela we-welding thermal cycle, amandla okuvimbela azovela ekuhlanganyeleni okuhlanganisiwe. Okunikezwayo okune-T-shaped kanye nesiphambano esihlangene sepuleti elijiyile eligoqiwe, ngaphansi kwesimo sokuthi amapharamitha wokushisela ahlala engashintshile, kukhona ingcindezi ebalulekile yokuvimbela noma ukuvimbela ukugoba. Amandla, uma makhulu kunaleli xabiso, ukudabuka kwe-lamellar kungenzeka.
03
Ukusatshalaliswa kwe-hydrogen. I-Hydrogen iyisici esikhuthazayo sokuqhekeka. Ngenxa yokusabalalisa nokuhlanganiswa kwe-hydrogen ibe ama-molecule, ingcindezi yendawo ikhula kakhulu. Lapho i-hydrogen iqoqa ekugcineni kokufakiwe, ibangela ukuthi okungenayo i-metallic inclusions kulahlekelwe ukunamathela ngensimbi futhi ikhiphe okufakiwe okuseduze. Insimbi ibonisa izici zokuphuka ezenziwe nge-hydrogen endaweni ephukile.
04
Izakhiwo zezinto eziyisisekelo. Nakuba ukufakwa kuyimbangela eyinhloko yokuqhekeka kwe-lamellar, izakhiwo zemishini zensimbi nazo zinethonya elibalulekile ekudwebeni kwe-lamellar. Ukuqina kwepulasitiki yensimbi akulungile, futhi imifantu ivame ukusabalala, okusho ukuthi ikhono lokumelana nokuklebhuka kwe-lamellar liphansi.
Ukuze uvimbele ukuvela kokuqhekeka kwe-lamellar, inqubo yokuklama neyokwakha ikakhulukazi ukugwema ukucindezeleka kwe-Z-direction kanye nokugxila kokucindezeleka. Izinyathelo eziqondile zimi kanje:
1. Thuthukisa idizayini ehlanganyelwe futhi unciphise ubunzima bokuzibamba. Izinyathelo eziqondile zifaka: ukwelula ukuphela kwe-arc striking plate ibe ubude obuthile ukuvimbela ukuqhekeka; ukushintsha ukwakheka kwe-weld ukushintsha isiqondiso se-weld shrinkage stress, ukushintsha ipuleti elishayayo elime mpo libe ipuleti elishayayo le-arc elivundlile, ukushintsha indawo yokushisela, Ukwenza ukuqondiswa kokucindezeleka okuphelele kokuhambisana okuhlangene nongqimba olugoqayo kungathuthukisa kakhulu i-lamellar. ukumelana nezinyembezi.
2. Yamukela izindlela zokushisela ezifanele. Kuyazuzisa ukusebenzisa izindlela zokushisela i-low-hydrogen, njenge-gas shielded welding kanye ne-arc welding engaphansi kwamanzi, enokuthambekela okuncane kokuqhekeka okubandayo futhi kunenzuzo ekuthuthukiseni ukumelana nokuqhekeka kwe-lamellar.
3. Sebenzisa izinto zokushisela ezihambisana namandla aphansi. Lapho insimbi ye-weld inephuzu eliphansi lokukhiqiza kanye ne-ductility ephezulu, kulula ukugxilisa ubunzima ku-weld futhi unciphise ubunzima endaweni ethinteke ukushisa yensimbi eyisisekelo, engathuthukisa ukumelana nokuqhekeka kwe-lamellar.
4. Ngokuphathelene nokusetshenziswa kobuchwepheshe be-welding, ungqimba lokuhlukanisa olwedlula phezulu lusetshenziswa; I-symmetrical welding isetshenziselwa ukulinganisa ukusatshalaliswa kobunzima nokunciphisa ukugxilisa ingqondo.
5. Ukuze uvimbele izinyembezi ze-lamellar ezibangelwa ukuqhekeka okubandayo, ezinye izinyathelo zokuvimbela ukuqhekeka okubandayo kufanele zamukelwe ngangokunokwenzeka, njengokwandisa ngokufanele ukushisa kwangaphambi kokushisa, ukulawula ukushisa kwe-interlayer, njll; ngaphezu kwalokho, izindlela zokunciphisa ukucindezeleka ezifana nokudonsa okuphakathi nendawo nazo zingathathwa.
6. Singasebenzisa futhi inqubo yokushisela yemilenze emincane yokushisela kanye ne-multi-pass welding ngokulawula ubukhulu be-weld.
Isikhathi sokuthumela: Nov-16-2023
