Izinyathelo zokuqapha zokuqiniswa kokungeniswa kwe-iron cast emshinini wokuqina we-high-frequency

Phakathi kwezinsimbi ezihlukahlukene ezisansimbi, ukuqina kokungeniswa kwe-grey cast iron kunzima kakhulu. I-Grey cast iron induction ukuqina kufana nensimbi, kanye nezinto zokucisha ezisetshenziswayo nazo ziyefana. Kumele kuqashelwe umehluko olandelayo:

I-1) Isikhathi sokushisa side kunaleso sezingxenye zensimbi, ngokuvamile ngaphezu kwemizuzwana embalwa, futhi kufanele igcinwe isikhathi esithile, ukuze isakhiwo esingancibiliki singancibilika sibe yi-austenite. Uma isivinini sokushisa sishesha kakhulu, sizoholela ekucindezelekeni okushisayo futhi kulula ukuqhekeka.

2) Ukushisa kokushisa akufanele kube phezulu kakhulu, umkhawulo ongaphezulu ngu-950 ℃, ngokuvamile 900-930 ℃, amamaki ahlukene anezinga lokushisa elilungile, lapho izinga lokushisa lokushisa lifinyelela ku-950 ℃, i-phosphorus eutectic izovela phezu kwengxenye, futhi kuzoba nezinsalela ezimahhadla. I-Austenite.

I-3) Ukuze wenze ukushisa kuguquke kancane kancane ukusuka phezulu kuya emgodleni, kungcono ukuthi ungacimi ngokushesha ngemva kokushisa, futhi ngaphambi kokupholisa i-0.5 kuya ku-2.Os kungcono kakhulu.

4) Ukucinywa kokungeniswa kwezingxenye zensimbi ngokuvamile kusebenzisa isixazululo se-polymer aqueous noma uwoyela njengendawo yokupholisa yokucisha, futhi ezinye izingxenye ezifana ne-cylinder liner zisetshenziswa ngokuqondile njengendawo yokupholisa yokucisha ngamanzi, futhi isihlalo se-valve somzimba we-cylinder sisodwa. – ukupholisa ukucisha.

I-5) Ngemuva kokuqina kokungeniswa, ukukhishwa kwensimbi okumpunga kufanele kuncishiswe ekushiseni okuphansi ukuze kuqedwe ukucindezeleka. Isibonelo, i-cylinder liner kufanele ifudunyezwe ku-220℃x 1h. I-matrix ye-ferritic cast iron malleable cast iron i-ferrite ne-graphic carbon. Ukuze uncibilikise i-carbon ku-austenite, kuyadingeka ukwandisa izinga lokushisa (kufika ku-1050 ℃) futhi wandise isikhathi sokushisa (kufika ku-1min noma ngaphezulu), ukuze wenze Ingxenye encane yekhabhoni ye-graphitic incibilike ku-austenite, futhi ubulukhuni obuphezulu bobuso bungatholakala ngemva kokucisha.