Uyini umehluko phakathi kwe-oxygen, i-nitrogen nomoya lapho usika i-carbon steel?

Lapho usika i-carbon steel, imishini yokusika i-laser ngokuvamile isebenzisa amagesi asizayo ukusiza ekusebenzeni.Amagesi asizayo ajwayelekile umoya-mpilo, i-nitrogen nomoya.Uyini umehluko phakathi kwala magesi amathathu lapho usika insimbi ye-carbon?

Ukuze uqonde umthelela wegesi elisizayo ngalinye kwinqubo yokusika, kuyadingeka ukucacisa isimiso sendima yamagesi asizayo.Okokuqala izinzuzo zokusebenzisa umoya wokusika zicacile ngokwanele, azikho izindleko ezidingekayo.Uma usebenzisa umoya, kuphela izindleko zikagesi ze-compressor yomoya kanye nomshini ngokwawo kufanele kucatshangelwe, kuqedwe izindleko eziphakeme zamagesi asizayo.Ukusebenza kahle kokusika emashidini amancane kuqhathaniswa nokusika i-nitrogen, okwenza kube indlela yokusika eyongayo nephumelelayo.Kodwa-ke, ukusika komoya nakho kunebubi obusobala ngokwemibandela ye-cross-section.Okokuqala, indawo esikiwe ingakhiqiza ama-burrs, adinga ukucutshungulwa kwesibili ukuze kuhlanzwe, okulimaza umjikelezo wokukhiqiza umkhiqizo.Okwesibili, indawo enqunyiwe ingaba mnyama, okuthinta ikhwalithi yomkhiqizo.Ukucubungula i-Laser ngokwayo kusebenzisa ngokunemba ukusebenza kahle nokunemba kwekhwalithi, futhi izithiyo zokusika komoya ziholele amakhasimende amaningi ukuthi alahle lolu hlobo lokusika.

Okwesibili, ukusetshenziswa kwe-oxygen cutting, ukusika i-oxygen kuyindlela evamile kakhulu futhi yendabuko yokusika.Ukusetshenziswa kwe-oxygen fibre laser cutting machine izinzuzo zayo zibonakala ikakhulukazi ezindleko zegesi, ekucubunguleni i-carbon steel sheet sheet metal, ngaphandle kokushintshwa njalo kwamagesi asizayo, ukwandisa ukusika ukusebenza kahle, ukuphathwa okulula.Kodwa-ke, ubungozi buwukuthi ngemuva kokusikwa kwe-oxygen, kuzoba nongqimba lwefilimu ye-oxide ebusweni bomhlaba wokusika, uma lo mkhiqizo unefilimu ye-oxide ngqo yokushisela, isikhathi sizoba side, ifilimu ye-oxide izophuma ngokwemvelo, umkhiqizo uzokwakha i-welding yamanga, ethinta ikhwalithi ye-welding.

Lapho umoya-mpilo usetshenziswa njengegesi elisizayo, kwakheka ifilimu ye-oxide endaweni yokusika.Ingaphezulu lokusikeka kwe-oxide-free ngokuvamile limhlophe futhi lingashiselwa ngokuqondile, lipendwe, njll. Ukumelana nokugqwala okuqinile kwenza ukusetshenziswa kwayo kube banzi kakhulu.

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Idatha yokusika engenhla ingeyereferensi kuphela, umphumela wangempela wokusika uzoba namandla.

Kafushane, lapho usika amapuleti ensimbi ekhabhoni aminyene ngaphezu kuka-6mm, kusekelwa ukusika umoya-mpilo kuphela.Uma usika ngaphansi kwe-6mm, uma kunezidingo ezicacile zokusika ikhwalithi nokunemba, kunconywa ukusebenzisa ukusika i-nitrogen, esebenza kahle kakhulu futhi ingacutshungulwa ngokuqondile esinyathelweni esilandelayo, kuyilapho ukusika i-oxygen kuhamba kancane futhi akunconywa.Uma usika ngaphansi kwe-6mm, uma ukusika kuphela kucatshangelwa noma kungekho zidingo ezicacile zenqubo, ukusika umoya kunconywa, ngezindleko ze-zero zegesi.


Isikhathi sokuthumela: Nov-23-2022