Imikhiqizo yensimbi yensimbi esetshenziswa embonini yezimoto

Imikhiqizo yokusansimbi eyimpuphu esetshenziswe ezimotweni iyimikhiqizo enokuqukethwe okuphezulu kwesayensi nobuchwepheshe, okunganciphisa isisindo semoto futhi kunciphise nezindleko zokukhiqiza, futhi kunenzuzo yokwandisa imikhiqizo yezimboni yezimoto
Njengamanje, kunezinhlobo ezingaphezu kwezingama-400 zezingxenye ze-powder metallurgy ezisetshenziswa ezimotweni emhlabeni.

Njengobuchwepheshe obujwayelekile bokukhiqizwa komumo wokugcina, i-powder metallurgy inezinzuzo zokonga amandla, ukonga impahla, ukuvikelwa kwemvelo, umnotho, ukusebenza kahle okuphezulu nezinye izici eziningi, futhi ibonwe kancane kancane yizimboni ezahlukahlukene.

Yazi futhi isetshenziswe kabanzi; Ikakhulukazi, ukusetshenziswa nokuthuthuka okusheshayo kwemikhiqizo yezimoto eziyinsimbi kukhuthaze imboni yokusansimbi eyimpuphu kuthrekhi esheshayo yentuthuko.
Ukuhlola ukuthambekela kokusebenza nokuthuthuka kobuchwepheshe be-metallurgy powder nemikhiqizo embonini yezimoto, intatheli yaxoxisana noProfesa Han fenglin, umxhumanisi omkhulu we-powder metallurgy inhlangano yobungcweti ye-China imishini izingxenye zomkhakha wezimboni.

I-China inamandla amakhulu okusetshenziswa kwamanye amazwe

UProfessor Han wethule ukuthi insimbi eyinsimbi isuselwa ezintweni ezenziwe ngophawuda wensimbi, ngokwenza - izinto zokukhiqiza zensimbi ezikhiqiza ubuchwepheshe bensimbi obusha. 1940, United States

Inkampani enkulu yezimoto isishintshe wonke amagiya empompo kawoyela aba yimpuphu yokusansimbi, kusukela lapho izimpahla zensimbi eziyimpuphu zaqala ukugxila embonini yezimoto.

Ngokusho kwedatha, ngo-2006, inani eliphelele lezingxenye ze-powder metallurgy eChina lalingamathani ayizigidi ezingama-78.03, phakathi kwawo lapho ukukhishwa kwezingxenye zensimbi yensimbi yezimoto kwafinyelela kumathani ayizigidi ezingama-28.877.

Ngokwesisindo esimaphakathi sezinto ze-PM ezisetshenziswa ezimotweni ezilula (kufaka phakathi izimoto), isisindo esimaphakathi sezinto ze-PM ezisetshenziswe ezimotweni zasekhaya sasingu-3.97 kg ngo-2006, uma kuqhathaniswa nesaseJapan

I-8.7kg, uma iqhathaniswa ne-19.5kg eNyakatho Melika. Ngaphezu kwalokho, imboni yezimoto manje isivulekele ekwakhiweni kwezingxenye zensimbi yensimbi yezingxenye zohlelo lokusebenza, ngokuvamile izingxenye zezinjini eziyi-16 ~ 20 kg, eziguquguqukayo

Izingxenye ezisheshayo ziyi-15 ~ 18 kg, izingxenye ezingaphansi kwamabhuleki zingu-8 ~ 10 kg, ezinye zingu-7 ~ 9 kg.Kungabonakala ukuthi iChina inamandla amakhulu emakethe okuthuthukisa izingxenye zensimbi ye-powder metallurgy.

Izingxenye zensimbi yensimbi zinganciphisa izindleko nesisindo

Ekhuluma ngentuthuko kanye nesimo samanje sokukhiqizwa kwensimbi okwenziwa ngempuphu, uProfessor Han uthe izingxenye zensimbi yempuphu ezisetshenziswa ekwenziweni kwezimoto ikakhulukazi zinamabheringi wensimbi athwele uwoyela nopushana

Izingxenye zesakhiwo se-Metallurgical, eyokuqala ikhiqizwa kakhulu nge-90Cu-10Sn bronze, eyokugcina yenziwe ngophawuda wensimbi njengezinto eziyisisekelo eziluhlaza.

Okulandelayo ezinye zezibonelo zokusetshenziswa kobuchwepheshe be-PM: Isikhiphi samandla wamazinyo we-PM 64 sishayela igiya elibiza cishe u-40% ngaphansi kwezingxenye ezenziwe ngensimbi, futhi

Futhi amazinyo egiya awadingi ukucubungula okwalandela; I-powder yokusansimbi yemoto yokuhambisa i-synchronizer ring, uma kuqhathaniswa nokukhiqizwa okujwayelekile kwendandatho yokuvumelanisa, kunganciphisa izindleko ezingama-38%; Uhlobo lwe

Amandla wokugcina we-powder metallurgy ehlanganisiwe weplanethi yamagiya angama-40% aphezulu kunalawo wensimbi wokusika wensimbi, kanti izindleko zincishisiwe ngaphezu kuka-35% ...

Njengoba kungabonakala ezinhlotsheni ezimbili zezingxenye ze-PM eziwinile imiklomelo eyahlukahlukene, okungenani ezintathu zazo zenziwe ngobuchwepheshe bokukhetha bokuhlangana futhi ezimbili zazo zenziwe ngobuchwepheshe obufudumele bokucindezela

Kwenziwe, izinhlobo eziyisithupha zezingxenye zakhiwe izingxenye ezingaphezu kwezingu-2 ezihlukene, ekuhlanganisweni kwezingxenye eziningi kunakho konke kunezingxenye eziyi-18 zensimbi yokusansimbi. UProfesa Han uthe, lokhu

Ezinye izingxenye eziwina imiklomelo zibonisa ukuthi izingxenye ze-PM azikwazi kuphela ukufaka izingxenye zensimbi ezenziwe ngensimbi, izingxenye zensimbi ezihlanganisiwe, ukusika umsebenzi, ukusindisa abasebenzi, okokusebenza, ukonga amandla, ukunciphisa izindleko zokukhiqiza, kepha futhi kungancishiswa

Isisindo sezingxenye silungele ukusinda kwemoto.Ngokubaluleke kakhulu, ukuthuthukiswa kwezingxenye zensimbi yensimbi, kuphawule ukuthi ezinye izingxenye zingenziwa kuphela ngobuchwepheshe be-metallurgy powder,

Ukubaluleka okubalulekile kwezobuchwepheshe nakwezomnotho.
I-powder metallurgy ubuchwepheshe bokukhiqiza "obuluhlaza"

Okwamanje, i-powder metallurgy ibonwa njengobuchwepheshe bokukhiqiza obuluhlaza futhi obusimeme embonini.Lokhu, uProfesa Han ovela ekusebenzeni okusansimbi okusansimbi, izinto zingabamba

Ukusimama, ukusimama kwamandla, ukusimama kwemishini, ukusimama kwemvelo, ukuqashwa okusimeme, izinzuzo zenani elisimeme nezinye izici.

Isibonelo, esimweni somsebenzi osimeme, i-powder metallurgy inezinga eliphakeme lokugcina lokwakha kanye nesilinganiso sokusetshenziswa kwempahla, okungenza ukusetshenziswa kwamandla okuphelele kube kuncane. Uma kuqhathaniswa nobuciko bendabuko (ukusebenza okushisayo
+ ukucubungula okubandayo) ukusakaza noma ukwakha + ukucubungula ukusika kuqhathaniswa nenqubo yokusansimbi ye-powder yokukhiqiza ingxenye efanayo kuphela edinga ukusebenzisa izinqubo ezimbalwa, ingaqedela inqubo ibe ningi kakhulu
Ubuciko obuhlukahlukene.

Mayelana nokusimama kwempahla, amandla wokugcina we-PM ayinzuzo enkulu.Isibonelo, ukwakha ingxenye enamazinyo, inqubo yokusika ejwayelekile izoba nokufika kuma-40% Izinto zokwakha ziba ngamachipisi, kuthi i-85% yempuphu ephelele isetshenziswe ku-powder metallurgy ikhiqizwa ezintweni ezenziwe kabusha.Inqubo yokukhiqizwa kwezingxenye ze-powder metallurgy, inqubo ngayinye Ukulahleka kukadoti ngokuvamile kungu-3% noma ngaphansi, futhi izinga lokusetshenziswa kwempahla lingafinyelela kuma-95%.

Mayelana nokusimama kwamandla, izinqubo ezijwayelekile zokukhiqiza zidinga izinqubo zokushisa nokushisa ezimbalwa ukwakha.Nxa insimbi noma i-iron powder ikhiqizwa yi-atomization,

Kudingeka ukuncibilikisa okukodwa kuphela kokulahliwe, futhi yonke eminye imisebenzi eshisayo yenziwa emazingeni okushisa angaphansi kwendawo encibilikayo, engagcini nje ngokugcina amandla, kepha futhi eholela ekwakhekeni kokugcina
Futhi ukwakheka kwezinto ezidingekayo ezibonakalayo, ukusebenza ngomshini.Ngokuqhathanisa izinga lokusetshenziswa kwensimbi yokwakha inqubo yezinto, kutholakala ukuthi amandla adingekayo okwenza izingxenye zensimbi yensimbi akha -
Amaphesenti angamashumi amane nane wezingxenye ezenziwe ngomshini.

Mayelana nokusimama kwemvelo, ngenxa yezici zekhono lokugcina lokwakha i-powder metallurgy, ngokuvamile, izingxenye zenziwa zibe yimikhiqizo eseqedile ngemuva kokugcotshwa, okungafakwa

Ukuthunyelwa, ukulethwa.ezimweni eziningi, inani lokusika uwoyela elisetshenziselwa ukucubungula imikhiqizo ye-PM lincane, futhi inani lezinto ezingcolisayo ezinobuthi ezikhishwe yimithombo efana namanzi okupholisa lincane

Uma kuqhathaniswa nezinye izinqubo zokukhiqiza, imboni yezingxenye zensimbi eyinsimbi ayinakulimaza okuncane kwemvelo.

Njengamanje, izingxenye zensimbi yempuphu beziwuhlobo olubaluleke kakhulu lwezingxenye eziyisisekelo embonini yezimoto.Kusikhathi esizayo esiseduze, izwe laseShayina kancane kancane lizoba isikhungo esikhulu kunazo zonke sokusabalalisa se-powder metallurgy izingxenye zezimoto


Isikhathi sokuthumela: Mar-10-2021