Izimbangela zokuqhekeka ku-Mid-Frequency Spot Welding?

I-Mid-frequency spot welding iyindlela yokushisela esetshenziswa kakhulu ezimbonini ezihlukahlukene, kodwa ingahlangabezana nezinkinga ezinjengokuqhekeka emajoyini ashiselwe. Ukuqonda izimbangela zalokhu kuqhekeka kubalulekile ekuthuthukiseni ikhwalithi nokuthembeka kwezingxenye ezishiselwe. Kulesi sihloko, sizohlola izizathu ezijwayelekile zokuqhekeka kwe-middle-frequency spot welding futhi sixoxe ngezixazululo ezingaba khona zokunciphisa lezi zinkinga.

1. Ukukhetha Okubalulekile: Ezimweni eziningi, ukuqhekeka kungabangelwa ukukhethwa kwezinto ezishiselwe. Uma izinsimbi ezingafani noma izinto ezinomehluko omkhulu kuma-coefficients wokunweba okushisayo zishiselwa ndawonye, ​​ilunga le-weld liba lula ekuqhekekeni ngesikhathi sokupholisa. Ukuze kuxazululwe le nkinga, kubalulekile ukukhetha izinto ezihambisana nokwakheka kanye nezakhiwo ezishisayo.
2. Amapharamitha we-Welding: Imingcele ye-welding engahambisani noma engalungile, njenge-welding current, isikhathi se-welding, namandla e-electrode, ingaholela ekuqhekekeni. Uma amapharamitha angasethiwe kahle, okokufaka nokusabalalisa ukushisa kungase kungalingani, kubangele ukugxila kwengcindezi okukhuthaza ukuqhekeka. Ukugcinwa njalo kanye nokulinganiswa kwemishini yokushisela kungasiza ukugcina amapharamitha alungile.
3. Ukulungiselela Ngokuhlanganyela Okungafanele: Ikhwalithi yokulungiselela ngokuhlanganyela idlala indima ebalulekile ekuvimbeleni imifantu. Ukungahlanzwa okwanele kanye nokuhlanganisa ngokuhlanganyela kungabamba ukungcola noma kudale izikhala endaweni yokushisela, okuholela ekuqhekekeni. Ukulungiselela ngokuhlanganyela okufanelekile, okuhlanganisa ukuhlanzwa nokuqondanisa okunembayo, kubalulekile ukuze kuqinisekiswe ukushisela okuzwakalayo.
4. I-Residual Stress: I-Welding yethula izingcindezi eziyinsalela kokubalulekile, okungaba nomthelela ekuqhekekeni ngokuhamba kwesikhathi. Ukwelashwa kokushisa kwangemva kokushisela noma ukudambisa ingcindezi kungase kudingeke ukuze kwehliswe lezi zingcindezi eziyinsalela futhi kuthuthukise ubuqotho be-weld.
5. I-Hydrogen Embrittlement: I-Hydrogen eyethulwe ngesikhathi senqubo yokushisela ingangena ensimbi futhi yenze kube lula ukuqhekeka. Ukuze ulwe nalokhu, ukomiswa okuphelele kwama-electrode kanye nokugcinwa okufanele kwezinto ezibonakalayo endaweni eyomile kungasiza ekuvimbeleni i-hydrogen embrittlement.
6. Ikhwalithi yokulawula: Izinyathelo zokulawula ikhwalithi ezinganele ngesikhathi senqubo yokushisela zingaholela ekushiyekeni okungabonakali okuholela ekuqhekekeni kamuva. Ukuhlola okuvamile, ukuhlola okungalimazi, kanye nezinqubo zokuqinisekisa ikhwalithi kubalulekile ekuhlonzeni nasekuxazululeni izinkinga ezingaba khona kusenesikhathi.
7. I-Welding Technique: Indlela yokushisela ngokwayo ingaba nomthelela emathubeni okuqhekeka. Ukubekwa kahle kwe-electrode, ukulandelana kwe-welding, nokulawulwa kwezinga lokushisa kubalulekile ukuze kuzuzwe i-weld yekhwalithi ephezulu engajwayele ukuqhekeka.

Sengiphetha, ukuqonda izici ezinomthelela ekuqhekekeni kwe-middle-frequency spot welding kubalulekile ekuvimbeleni le nkinga nokuqinisekisa ukwethembeka kwezingxenye ezishiselwe. Ukukhetha izinto ezibonakalayo ngokucophelela, imingcele yokushisela enembile, ukulungiselela ngokuhlanganyela okufanelekile, ukuphathwa kwengcindezi, nokulawula ikhwalithi ngenkuthalo yizo zonke izici ezibalulekile ekuzuzeni ukushisela okungena-crack. Ngokubhekana nalezi zici, abakhiqizi bangakhiqiza ama-welds ahlangabezana nezindinganiso eziphakeme kakhulu zekhwalithi nokuqina.