Ungagwema Kanjani Imifantu Emikhiqizweni Ye-Cemented Carbide Extrusion

Kuyinto evamile ukusebenzisa ubuchwepheshe be-powder extrusion ukukhiqiza imikhiqizo ye-tungsten carbide kanye nezinduku ze-carbide ekukhiqizeni imikhiqizo ye-tungsten carbide. I-Cemented Carbide Extrusion iwubuchwepheshe bokwakha obungaba khona ekukhiqizeni i-carbide yesimanjemanje. Kodwa-ke, imikhiqizo ye-extrusion isengabonakala imifantu phakathi nenqubo yokukhiqiza. Lesi sihloko sizokhuluma ngendlela yokugwema imifantu ekubunjweni kwe-carbide extrusion kasimende.

Indlela ye-extrusion inokwehluka kwayo uma iqhathaniswa nobuchwepheshe bokubumba bendabuko kanye nobuchwepheshe bokucindezela be-isotactic. Inqubo yokukhiqiza yokubunjwa kwe-carbide extrusion enosimende ihlanganisa lezi zinyathelo ezilandelayo: ukuhlanganisa impushana ne-ejenti yokubumba → ukubumba kwe-extrusion → ukulungiselela ukushisa → i-vacuum sintering → ukupakishwa komkhiqizo oqediwe → umkhiqizo oqediwe. Inqubo yokukhiqiza ibonakala ilula ngempela, kodwa kulula kakhulu ukukhiqiza udoti oqhekekile uma kukhona ubudedengu ngesikhathi sokukhiqiza.

Kunezizathu eziningi zokuqhekeka, njengezilungiselelo zesakhiwo ezingenangqondo ze-extrusion die, i-ejenti yokubumba engagculisi, ukusebenza kabi kokubumba kwengxube, inqubo ye-extrusion engalungile, inqubo ye-pre-sintering, nenqubo ye-sintering, njll.

Umthelela we-ejenti yokubumba i-extrusion emifantwini:

Uma usebenzisa upharafini noma i-ejenti yokubumba yohlobo luka-A ngaphansi kwezimo ezifanayo zokukhipha, ukungeza i-ejenti yokubumba eningi kakhulu noma enganele kuzodala imifantu emikhiqizweni, Imvamisa, izinga lokuqhekeka kwe-wax kapharafini liphezulu kunele-agent yokubumba yohlobo lwe-A. Ngakho-ke, ekukhiqizeni imikhiqizo ye-carbide extrusion ene-cemented, ukukhethwa kwe-ejenti yokwakha kanye nenani lokulawula ama-ejenti okubumba kubaluleke kakhulu.

Umthelela wezinga lokushisa langaphambi kwe-sintering:

Ukuqhekeka komkhiqizo osuphelile kuhambisana nezinga lokushisa. Ngokusheshisa izinga lokushisa, ukuqhekeka kuyanda. Ukuze unciphise imifantu emkhiqizweni, indlela engcono kakhulu ukusebenzisa amazinga okushisa angaphambi kwe-sintering osayizi abahlukene bemikhiqizo eqediwe.

Ukufingqa, ukuze kuncishiswe ukwenzeka kokuqhekeka kwemikhiqizo ye-carbide extrusion esimende, kubalulekile ukuqaphela amaphuzu alandelayo. Inqubo yokukhiqizwa kwemikhiqizo ye-carbide extrusion kufanele ilawulwe ngokuqinile. I-ejenti eyenza uhlobo lwe-A inomphumela ongcono ekuvimbeleni ukuqhekeka emikhiqizweni. Ngaphezu kwalokho, izinga lokushisa langaphambi kwe-sintering lemikhiqizo ekhishwe lihlobene ngokuqondile nokwenzeka kwemikhiqizo yemfucuza eqhekekile. Ukusebenzisa isilinganiso sokushisisa esihamba kancane emikhiqizweni emikhulu kanye nokusebenzisa izinga lokushisa elisheshayo emikhiqizweni emincane kunezindlela ezisebenzayo zokugwema udoti owenziwe usimende we-carbide extrusion crack.

Uma unentshisekelo emikhiqizweni ye-tungsten carbide futhi ufuna ulwazi olwengeziwe nemininingwane, UNGATHI XHUMANA NATHI ngocingo noma ngemeyili kwesokunxele, noma SITHUMELE IMEYILI ezansi nekhasi.