Sekuyisikhathi eside, onjiniyela kanye nabathengi abangahle baqhathanise i-powder metallurgy nezinqubo eziqhudelanayo.Ngokuqondene nezingxenye zensimbi eziyimpushana nezingxenye ezifojiwe, njenganoma isiphi esinye isiqhathaniso sezindlela zokukhiqiza, kusiza ukuqonda izinzuzo nezingozi ezingaba khona zenqubo ngayinye.I-Powder metallurgy (PM) inikeza izinzuzo eziningi okufanele uzicabangele-ezinye zisobala, ezinye aziningi.Yiqiniso, kwezinye izimo, ukukhwabanisa kungase kube yisinqumo esihle.Ake sibheke ukusetshenziswa okulungile nokusetshenziswa kwensimbi eyimpuphu nezingxenye ezibunjiwe:

1. Insimbi yempushana nama-forgings

Kusukela yaba yinto evamile, i-powder metallurgy isiyisixazululo esisobala sokukhiqiza izingxenye ezincane ezimweni eziningi.Kuleli qophelo, ungase uphikise ukuthi ukulingisa okuningi okungathathelwa indawo yi-PM kushintshiwe.Ngakho-ke, yimuphi umngcele olandelayo wokusebenzisa ngokugcwele izinsimbi eziyimpuphu?Kuthiwani ngezingxenye ezifojiwe?Impendulo iqondene ngqo nesicelo sakho.Izakhiwo ezihambisanayo zezinto ezihlukahlukene zokubumba (ama-forgings ayingxenye yazo), bese ubonisa isikhundla se-powder metal efanelekayo incazelo.Lokhu kwabeka isisekelo se-PM yamanje, futhi okubaluleke kakhulu, i-PM engenzeka.Bheka lapho amaphesenti angu-80 emboni yensimbi eyimpushana encike ensimbini ewuketshezi, ithusi le-phosphor, njll. Nokho, izingxenye zensimbi eziyimpushana manje zidlula kalula imikhiqizo yensimbi ekhonjiwe.Ngamafuphi, uma uhlela ukusebenzisa i-iron-copper-carbon ejwayelekile ukuklama izingxenye, khona-ke i-powder metallurgy ingase ingabi eyakho.Kodwa-ke, uma ucwaninga izinto ezithuthuke kakhulu nezinqubo, i-PM ingase inikeze ukusebenza okudingayo ngezindleko eziphansi kakhulu kune-forgings.

2. Ake sibhekisise ezinye zezinzuzo kanye nobubi bensimbi eyimpuphu nezingxenye ezifojiwe:

A. Izingxenye ze-Metal powder metallurgy

1. Izinzuzo ze-powder metallurgy:

Izingxenye zingakhiqizwa ngezinto ezinganikeza isevisi yokushisa okuphezulu nokuqina okuphezulu, futhi izindleko ziyancipha.Cabanga ngensimbi engagqwali, engaphansi kwamazinga okushisa aphezulu ezinhlelweni zokukhipha umoya, njll.

Ingakwazi ukugcina ukukhiqiza okuphezulu kwezingxenye, ngisho nezingxenye eziyinkimbinkimbi.

Ngenxa yokuma kwenetha kwe-powder metallurgy, iningi labo alidingi machining.Ukucutshungulwa okuncane kwesibili kusho izindleko eziphansi zabasebenzi.

Ukusetshenziswa kwe-metal powder kanye ne-sintering kungafinyelela izinga eliphezulu lokulawula.Lokhu kuvumela ukulungiswa kahle kwezakhiwo ze-electromagnetic, ukuminyana, ukumanzisa, ukuqina kanye nobulukhuni.

Ukushisa okuphezulu kwe-sintering kuthuthukisa kakhulu amandla aqinile, ukugoba amandla okukhathala kanye nomthelela wamandla.

2. Ububi be-powder metallurgy:

Izingxenye ze-PM ngokuvamile zinemikhawulo yosayizi, okungenza imiklamo ethile ingenzeki.Umshini omkhulu wokunyathelisa kulo mkhakha ungamathani ayi-1,500.Lokhu kunciphisa usayizi wengxenye wangempela endaweni eyisicaba cishe ngamasentimitha-skwele angama-40-50.Ngokweqiniso, usayizi wokushicilela omaphakathi ungaphakathi kwamathani angama-500, ngakho-ke sicela wenze uhlelo lokuthuthukisa ingxenye yakho.

Izingxenye ezinobumo obuyinkimbinkimbi kungase kube nzima ukuzenza.Kodwa-ke, abakhiqizi bezingxenye zensimbi abanekhono eliphezulu banganqoba le nselele futhi bakusize nokuklama.

Izingxenye ngokuvamile aziqinile noma azinwebeki njengensimbi ecijile noma izingxenye ezifojiwe.