Yimaphi amaphutha avame ukwenzeka ngesikhathi sokushisela umugqa wensimbi engagqwali ongu-304?

Ngesikhathi sokushisela okungaphezulu kwe-strip yensimbi engagqwali engu-304, kungahle kube nezinkinga ezimbalwa.Ezinye iziphambeko ezivamile zihlanganisa:

1. I-Porosity:

I-Porosity isho ukuba khona kwama-voids amancane noma amaphakethe egesi ezintweni ezishiselwe.Kungabangelwa izici ezimbalwa ezifana nokungavikeleki kwegesi okwanele, izinga lokugeleza kwegesi elingafanele, insimbi eyisisekelo engcolile, noma amasu okushisela angafanele.I-Porosity ingenza buthaka i-weld futhi inciphise ukumelana kwayo nokugqwala.

2.Ukuqhekeka:

Imifantu ingenzeka endaweni yokushisela noma endaweni ethinteke ukushisa (HAZ).Ukuqhekeka kungase kubangelwe izici ezihlukahlukene ezifana nokufaka ukushisa okuphezulu, ukupholisa ngokushesha, ukushisa kwangaphambili okungafanele noma ukulawulwa kwezinga lokushisa kwe-interpass, ukucindezeleka kwensalela ngokweqile, noma ukuba khona kokungcola kusisekelo sensimbi.Imifantu ingaphazamisa ubuqotho besakhiwo se-weld.

3.Ukuhlanganiswa okungaphelele noma ukungena okungaphelele:

Ukuhlanganiswa okungaphelele kwenzeka lapho i-filler metal ingahlangani ngokuphelele nensimbi eyisisekelo noma ubuhlalu be-weld obuseduze.Ukungena okungaphelele kubhekisela esimweni lapho i-weld ingangeni kuwo wonke ugqinsi lwelunga.Lezi zinkinga zingabangelwa ukufaka ukushisa okunganele, indlela yokushisela engalungile, noma ukulungiswa okungalungile kwamalunga.

4.Undercutting:

I-undercutting ukwakheka kwe-groove noma ukudangala eduze kozwane lwe-weld noma eduze kwayo.Kungabangelwa isivinini esiphezulu samanje noma sokuhamba, i-electrode angle engafanele, noma indlela yokushisela engalungile.I-undercutting ingenza buthaka i-weld futhi iholele ekugxilweni kwengcindezi.

5.I-spatter eyeqile:

I-Spatter ibhekisela ekukhishweni kwamaconsi ensimbi encibilikisiwe ngesikhathi sokushisela.I-spatter eningi ingenzeka ngenxa yezici ezifana ne-welding high current, izinga lokugeleza kwegesi elivikelayo elingalungile, noma i-engeli engafanele ye-electrode.I-Spatter ingaholela ekubukekeni kwe-weld okungalungile futhi ingase idinge ukuhlanzwa okwengeziwe kwangemuva kokushisela.

6.Ukuhlanekezela:

Ukuhlanekezela kubhekisela ekuwohlokeni noma ekujikeni kwesisekelo sensimbi noma ilunga elishiselwe ngesikhathi sokushisela.Kungase kwenzeke ngenxa yokushisisa nokupholisa okungeyona into efanayo, ukulungisa okunganele noma ukubambana, noma ukukhululwa kwengcindezi eyinsalela.Ukuhlanekezela kungathinta ukunemba kwe-dimensional kanye nokulingana kwezingxenye ezishiselwe.

Ukuze kuncishiswe lezi zinkinga ngesikhathi sokushisela umugqa wensimbi engagqwali ongu-304, kubalulekile ukulandela izinqubo ezifanele zokushisela, uqinisekise ukulungiswa okuhlanganyelwe okufanelekile, ukugcina okokufaka okushisa okufanele nokuvikela ukumbozwa kwegesi, nokusebenzisa izindlela zokushisela ezifanele.Ukwengeza, izindlela zokwelapha zokushisa zangaphambi kwe-weld ne-post-weld, kanye nezindlela zokuhlola ezingalimazi, zingasetshenziswa ukuze kuhlonzwe futhi kuncishiswe amaphutha angenzeka.