I-powder metallurgyisayensi nobuchwepheshe obufunda futhi bukhiqize izimpushana zensimbi ezihlukahlukene futhi zisebenzisa izimpushana njengezinto ezingavuthiwe ukuze kulungiswe izinto zensimbi nemikhiqizo ngokucindezela, ukucwilisa kanye nokucubungula okudingekayo okulandelayo. Kuyindlela yokukhiqiza ngobuningi enokusika okuncane noma okungekho nhlobo, okungenza izingxenye zesakhiwo ezinobunjwa obuyinkimbinkimbi namandla aphezulu esakhiwo ngenkathi kunciphisa izindleko. Kuyindlela eyinhloko yokukhiqiza ngobuningi bokuthwala izingxenye ezizigcoba ngezindleko eziphansi.
Izinzuzo zenqubo ye-powder metallurgy
Izinzuzo: 1. Izinsimbi eziningi eziphikisayo nezinhlanganisela zazo, ama-alloys aqinisiwe okuhlakazwa kwe-oxide, izinto ezinama-porous, izinto zobumba kanye nama-carbides anosimende angenziwa kuphela ngezindlela ze-powder metallurgy.
2. Njengoba indlela ye-powder metallurgy ingacindezelwa kusayizi wokugcina wokungenalutho ngaphandle noma isidingo esincane sokucutshungulwa komshini okulandelayo, ingasindisa kakhulu inani lensimbi futhi inciphise izindleko zomkhiqizo. Lapho ukhiqiza imikhiqizo nge-powder metallurgy, ukulahlekelwa kwensimbi kungu-1-5% kuphela. Lapho kukhiqizwa izindlela ezijwayelekile zokuphonsa, ukulahleka kwensimbi kungafinyelela ku-80%.
3. Njengoba inqubo ye-powder metallurgy ayincibiliki izinto ezibonakalayo ekukhiqizeni izinto ezibonakalayo, akesabi ukuxuba ukungcola, futhi i-sintering yenziwa endaweni engenalutho nokunciphisa umoya, ingesabi i-oxidation, futhi ngeke ibangele noma yikuphi ukungcola kwezinto ezibonakalayo, ngakho-ke kungenzeka ukuthola ukuhlanzeka okuphezulu. s impahla.
4. I-powder metallurgy ingaqinisekisa ukunemba nokufana kwesilinganiso sokwakheka kwezinto.
5. I-powder metallurgy ifaneleka ukukhiqiza imikhiqizo enesimo esifanayo nenani elikhulu lemikhiqizo, ikakhulukazi amagiya neminye imikhiqizo ebiza kakhulu. Ukukhiqiza nge-powder metallurgy kunganciphisa kakhulu izindleko zokukhiqiza.
Ububi beinqubo ye-powder metallurgy
1. Cabangela usayizi wengxenye uma kungekho usayizi weqoqo
2. Imali yesikhunta iphezulu kunesikhunta sokubunjwa
Isiqondiso sokuthuthukiswa kwepowder metallurgy izinto kanye nemikhiqizo
1. Ama-alloys asekelwe ku-iron amele azothuthukiswa abe yimikhiqizo yokunemba yevolumu enkulu kanye nezingxenye ezisezingeni eliphezulu zesakhiwo.
2. Ukwenziwa kwama-alloys asebenza kahle kakhulu ane-microstructure efanayo, okunzima ukuyicubungula futhi aminyene ngokuphelele.
3. Sebenzisa inqubo yokuqina ethuthukisiwe ukuze ukhiqize ama-alloys akhethekile ezigaba ezixubile eziqukethe uwoyela.
4. Ukwenziwa kwezinto ezihlukene, i-amorphous, i-microcrystalline noma i-alloys e-metastable.
5. Ukucutshungulwa kwamafomu ahlukile futhi angajwayelekile noma ukwakheka kwezingxenye ze-alloy.
Ukusakaza kuyinqubo lapho insimbi incibilika ibe uketshezi oluhlangabezana nezimfuneko ezithile bese luthelwa esikhunjeni. Ngemuva kokupholisa, ukuqinisa, nokuhlanza, ukulingwa okunomumo onqunywe kusengaphambili, usayizi nokusebenza kuyatholakala.
Izici zokusakaza:
1. Ukusakaza kunomthombo obanzi wezinto ezingavuthiwe nezindleko eziphansi zokukhiqiza. Uma kuqhathaniswa nezinye izinqubo zokwakha, ukulingisa kunezinzuzo ezisobala.
2. Ukusakaza kuwuketshezi lwensimbi, ngakho-ke kungakhiqiza izikhala noma izingxenye ezinomumo oyinkimbinkimbi, ikakhulukazi osayizi abahlukahlukene kanye nokucaciswa okunezimbobo zangaphakathi eziyinkimbinkimbi.
3. Usayizi, isisindo kanye neqoqo lokukhiqiza lokulingisa akunqunyelwe, okuguquguqukayo
4. Izindleko eziphansi zokukhiqiza nokonga izinsiza. Izinga lokusetshenziswa kwezinto liphezulu futhi ukusetshenziswa kubanzi kakhulu
5. Izinto ezisetshenziswayo zokulingisa zimbi kakhulu kunezimbokodo
6. Ngenxa yenani elikhulu lezinqubo zokukhiqiza, izinto eziningi ezisetshenziswayo, kanye nokulawulwa okungalungile, ikhwalithi yokulingisa ayizinzile, futhi imikhiqizo elahliwe iphakeme kakhulu.
7. Izimo zokusebenza ezimbi
Izinzuzo zokusakaza:
1. Khiqiza izimo eziyinkimbinkimbi, ikakhulukazi izingxenye ezingenalutho ezinemigodi yangaphakathi eyinkimbinkimbi, njengamabhokisi ahlukahlukene, imibhede, ama-rack, njll.
2. Ukusakaza kunokuguquguquka okubanzi kanye nokuguquguquka. Izinto zensimbi ezivame ukusetshenziswa embonini zingasetshenziselwa ukusakaza. Isisindo se-castings singahluka kusuka kumagremu ambalwa kuya kumathani angamakhulu amaningana, futhi ubukhulu bodonga bungaba ngu-0.5mm kuya ku-1m.
3. Izinto ezisetshenziswayo zokulingisa zishibhile futhi ziphansi ngezindleko
ukushiyeka:
1. Isakhiwo sezingxenye sikhululekile, okusanhlamvu kuqinile, futhi ukukhubazeka okufana nemigodi eyancipha, i-shrinkage porosity, nama-pores akhiqizwa kalula ngaphakathi. Ngakho-ke, izici zemishini ye-castings, ikakhulukazi ukuqina komthelela, ziphansi kunalezo zokuqanjwa kwento efanayo.
2. Ikhwalithi yokulingisa ayizinzile ngokwanele.
Isikhathi sokuthumela: Mar-31-2022