Ukushisa okucimayo nesikhathi se-roller chain: ukuhlaziywa kwamapharamitha enqubo ebalulekile

Ukushisa okucimayo nesikhathi se-roller chain: ukuhlaziywa kwamapharamitha enqubo ebalulekile

Emkhakheni wokudlulisa ngomshini,uchungechunge lwe-rollerkuyingxenye ebalulekile, futhi ukusebenza kwayo kuthinta ngqo ukusebenza kahle kanye nokuthembeka kwemishini yemishini. Ukucima, njengenqubo eyinhloko yokwelapha ukushisa ekukhiqizweni kwe-roller chain, kudlala indima ebalulekile ekuthuthukiseni amandla ayo, ubulukhuni, ukumelana nokuguguleka kanye nokuphila kokukhathala. Lesi sihloko sizohlola ngokujulile izimiso zokunquma izinga lokushisa nesikhathi sokucima i-roller chain, imingcele yenqubo yezinto ezivamile, ukulawulwa kwenqubo kanye nentuthuko yakamuva, kuhloswe ukunikeza izinkomba zobuchwepheshe eziningiliziwe zabakhiqizi be-roller chain kanye nabathengi bamazwe ngamazwe abathengisa ngobuningi, ukuze babasize baqonde ngokujulile umthelela wenqubo yokucima ekusebenzeni kwe-roller chain futhi benze izinqumo zokukhiqiza nokuthenga ezinolwazi oluthe xaxa.

1. Imiqondo eyisisekelo yokucima uchungechunge lwe-roller
Ukucima kuyinqubo yokwelapha ukushisa efudumeza uchungechunge lwe-roller ezingeni lokushisa elithile, ilugcine lufudumele isikhathi esithile, bese luphola ngokushesha. Inhloso yalo ukuthuthukisa izakhiwo zemishini zochungechunge lwe-roller, njengokuqina namandla, ngokushintsha isakhiwo se-metallographic sezinto. Ukupholisa okusheshayo kuguqula i-austenite ibe yi-martensite noma i-bainite, okunikeza uchungechunge lwe-roller izakhiwo ezinhle kakhulu eziphelele.

2. Isisekelo sokunquma izinga lokushisa lokucima
Iphuzu elibalulekile lezinto zokwakha: Amaketanga e-roller ezinto ezahlukene anamaphuzu ahlukile abalulekile, njenge-Ac1 ne-Ac3. I-Ac1 izinga lokushisa eliphakeme kakhulu lesifunda se-pearlite ne-ferrite esinezigaba ezimbili, kanti i-Ac3 izinga lokushisa eliphansi kakhulu lokwenziwa kwe-austenitization ephelele. Izinga lokushisa lokucima livame ukukhethwa ngaphezu kwe-Ac3 noma i-Ac1 ukuqinisekisa ukuthi izinto zifakwe i-austenit ngokugcwele. Isibonelo, kumaketanga e-roller enziwe ngensimbi engu-45, i-Ac1 icishe ibe ngu-727℃, i-Ac3 icishe ibe ngu-780℃, kanti izinga lokushisa lokucima livame ukukhethwa cishe ku-800℃.
Izidingo zokwakheka kwezinto kanye nokusebenza kwazo: Okuqukethwe kwezinto ezixubayo kuthinta ukuqina nokusebenza kwamaketanga okugoqa. Kumaketanga okugoqayo anokuqukethwe okuphezulu kwezinto ezixubayo, njengezintambo ezixubayo zensimbi ezixubayo, izinga lokushisa lokucima lingakhushulwa ngokufanele ukuze kwandiswe ukuqina nokuqinisekisa ukuthi umongo ungaphinde uthole ubulukhuni namandla amahle. Kumaketanga okugoqayo ensimbi angenakhabhoni ephansi, izinga lokushisa lokucima alikwazi ukuba phezulu kakhulu ukuze kugwenywe ukungcoliswa okukhulu kanye nokungaguquki kwekhabhoni, okuthinta ikhwalithi yobuso.
Ukulawulwa kosayizi wezinhlamvu ze-Austenite: izinhlamvu ze-austenite ezincane zingathola isakhiwo esihle se-martensite ngemva kokucima, ukuze i-roller chain ibe namandla aphezulu nokuqina. Ngakho-ke, izinga lokushisa lokucima kufanele likhethwe ngaphakathi kobubanzi obungathola izinhlamvu ze-austenite ezincane. Ngokuvamile, njengoba izinga lokushisa likhuphuka, izinhlamvu ze-austenite zivame ukukhula, kodwa ukwandisa izinga lokupholisa noma ukwamukela izinyathelo zenqubo yokuhlanza izinhlamvu kungavimbela ukukhula kwezinhlamvu ngezinga elithile.

3. Izici ezinquma isikhathi sokucima

Usayizi kanye nesimo seketanga lama-roller: amaketanga ama-roller amakhulu adinga isikhathi eside sokushisa ukuqinisekisa ukuthi ukushisa kudluliselwe ngokuphelele ngaphakathi futhi yonke ingxenye yesiphambano iqiniswa ngokulinganayo. Isibonelo, kuma-roller chain plates anobubanzi obukhulu, isikhathi sokushisa singandiswa ngokufanele.

Indlela yokulayisha nokufaka isithando somlilo: Ukufaka isithando somlilo esiningi kakhulu noma ukufaka isithando somlilo esiminyene kakhulu kuzobangela ukushisa okungalingani kweketanga lama-roller, okuholela ekungalinganini kokuzinza. Ngakho-ke, lapho kunqunywa isikhathi sokucima, kubalulekile ukucabangela umthelela wokufaka isithando somlilo nendlela yokufaka isithando somlilo ekudlulisweni kokushisa, ukwandisa isikhathi sokubamba ngokufanele, nokuqinisekisa ukuthi iketanga ngalinye lama-roller lingafinyelela umphumela ofanele wokucima.
Ukufana kwezinga lokushisa lesithando kanye nezinga lokushisa: Imishini yokushisa enokulingana okuhle kwezinga lokushisa lesithando ingenza zonke izingxenye zeketanga le-roller zifudumale ngokulinganayo, futhi isikhathi esidingekayo ukuze kufinyelelwe izinga lokushisa elifanayo sifushane, futhi isikhathi sokubamba singancishiswa ngokufanele. Izinga lokushisa lizothinta nezinga le-austenitization. Ukushisa okusheshayo kunganciphisa isikhathi ukuze kufinyelelwe izinga lokushisa lokucima, kodwa isikhathi sokubamba kumele siqinisekise ukuthi i-austenite ihlanganiswe ngokuphelele.

4. Ukushisa kokucima kanye nesikhathi sezinto ezivamile ze-roller chain
Uchungechunge lwe-roller yensimbi yekhabhoni
Insimbi engu-45: Izinga lokushisa lokucima ngokuvamile lingu-800℃-850℃, futhi isikhathi sokubamba sinqunywa ngokosayizi weketanga le-roller kanye nomthwalo wesithando, ngokuvamile cishe imizuzu engama-30-60. Isibonelo, kumaketanga amancane e-roller ensimbi angu-45, izinga lokushisa lokucima lingakhethwa njengo-820℃, kanti isikhathi sokuvala singamaminithi angama-30; kumaketanga amakhulu e-roller, izinga lokushisa lokuvala lingakhushulwa libe ngu-840℃, kanti isikhathi sokuvala singamaminithi angama-60.
Insimbi ye-T8: Izinga lokushisa lokucima licishe libe ngu-780℃-820℃, futhi isikhathi sokushisa ngokuvamile siyimizuzu engama-20-50. Iketanga le-roller lensimbi ye-T8 linobunzima obukhulu ngemva kokucima futhi lingasetshenziswa ngezikhathi zokudlulisela ngemithwalo emikhulu yokushaya.
Uchungechunge lwe-roller yensimbi ye-alloy
Insimbi engu-20CrMnTi: Izinga lokushisa lokucima livame ukuba ngu-860℃-900℃, kanti isikhathi sokushisa siyimizuzu engu-40-70min. Le nto inokuqina okuhle kanye nokumelana nokuguguleka, futhi isetshenziswa kabanzi kumaketanga okugoqa ezimbonini zezimoto, izithuthuthu kanye neminye imboni.
Insimbi engu-40Cr: Izinga lokushisa lokucima lingu-830℃-860℃, kanti isikhathi sokushisa siyimizuzu engama-30-60min. Iketanga le-roller lensimbi elingu-40Cr linamandla aphezulu nokuqina, futhi lisetshenziswa kabanzi emkhakheni wokudlulisa izimboni.
Iketanga lokugoqa lensimbi engagqwali: Uma sibheka insimbi engagqwali engu-304 njengesibonelo, izinga lokushisa lalo lokucima ngokuvamile lingu-1050℃-1150℃, kanti isikhathi sokushisa siyimizuzu engama-30-60. Iketanga lokugoqa lensimbi engagqwali linokumelana okuhle nokugqwala futhi lifanelekela izimboni zamakhemikhali, ukudla kanye nezinye izimboni.

5. Ukulawula inqubo yokucima
Ukulawula inqubo yokushisa: Sebenzisa imishini yokushisa ethuthukisiwe, njengesithando somoya esilawulwayo, ukulawula ngokunembile izinga lokushisa kanye nomoya esithandweni somlilo ukuze unciphise ukushiswa kwegesi kanye nokususwa kwe-carburization. Ngesikhathi senqubo yokushisa, lawula izinga lokushisa ngezigaba ukuze ugweme ukuguquka kwe-roller chain noma ukucindezeleka kokushisa okubangelwa ukwenyuka kwezinga lokushisa okungazelelwe.
Ukukhethwa kwe-quenching medium kanye nokulawula inqubo yokupholisa: Khetha i-quenching medium efanelekile ngokwezinto zokwakha kanye nosayizi we-roller chain, njengamanzi, uwoyela, uketshezi lokucima i-polymer, njll. Amanzi anejubane lokupholisa elisheshayo futhi afaneleka kumaketanga e-roller ensimbi yekhabhoni amancane; uwoyela unejubane lokupholisa elihamba kancane futhi afaneleka kumaketanga e-roller ensimbi amakhulu noma ahlanganisiwe. Ngesikhathi senqubo yokupholisa, lawula izinga lokushisa, ijubane lokuvuselela kanye neminye imingcele ye-quenching medium ukuqinisekisa ukupholisa okufanayo futhi ugweme ukucima imifantu.
Ukwelashwa kokushisa: Iketanga le-roller ngemva kokushisa kufanele lifudumale ngesikhathi ukuze kuqedwe ukucindezeleka kokushisa, kuqiniswe isakhiwo futhi kuthuthukiswe ukuqina. Izinga lokushisa lokushisa ngokuvamile lingu-150℃-300℃, kanti isikhathi sokubamba singu-1h-3h. Ukukhethwa kwezinga lokushisa lokushisa kufanele kunqunywe ngokwezidingo zokusetshenziswa kanye nezidingo zokuqina kweketanga le-roller. Isibonelo, kumaketanga e-roller adinga ubulukhuni obuphezulu, izinga lokushisa lokushisa lingancishiswa ngokufanele.

6. Intuthuko yakamuva yobuchwepheshe bokucima
Inqubo yokucima i-isothermal: Ngokulawula izinga lokushisa le-quenching medium, i-roller chain igcinwa isothermally ebangeni lokushisa lokuguqulwa kwe-austenite kanye ne-bainite ukuze kutholakale isakhiwo se-bainite. Ukucima i-isothermal kunganciphisa ukuguquguquka kokucima, kuthuthukise ukunemba okulinganiselwe kanye nezakhiwo zemishini ze-roller chain, futhi kufanelekile ekukhiqizweni kwamaketanga e-roller anokunemba okuphezulu. Isibonelo, amapharamitha enqubo yokucima i-isothermal yepuleti lensimbi le-C55E angokushisa kokucima okungu-850℃, izinga lokushisa le-isothermal elingu-310℃, isikhathi se-isothermal esingu-25min. Ngemva kokucima, ubulukhuni bepuleti le-chain buhlangabezana nezidingo zobuchwepheshe, futhi amandla, ukukhathala nezinye izakhiwo ze-chain ziseduze nalezo zezinto ze-50CrV eziphathwe ngenqubo efanayo.
Inqubo yokucima okulinganiselwe: Iketanga le-roller liqala lipholiswe endaweni esezingeni lokushisa eliphezulu, bese lipholiswa endaweni esezingeni lokushisa eliphansi, ukuze izakhiwo zangaphakathi nezangaphandle zeketanga le-roller ziguqulwe ngokulinganayo. Ukucima kancane kancane kunganciphisa ngempumelelo ukucindezeleka kokucima, kunciphise amaphutha okucima, futhi kuthuthukise ikhwalithi kanye nokusebenza kweketanga le-roller.
Ubuchwepheshe bokulingisa ikhompyutha nokwenza ngcono: Sebenzisa isofthiwe yokulingisa ikhompyutha, njenge-JMatPro, ukuze ulingise inqubo yokucima uchungechunge lwe-roller, ubikezele izinguquko ekuhleleni nasekusebenzeni, futhi ulungise amapharamitha enqubo yokucima. Ngokusebenzisa ukulingisa, ithonya lamazinga okushisa ahlukene okucima kanye nezikhathi ekusebenzeni kochungechunge lwe-roller lingaqondwa kusengaphambili, inani lokuhlolwa lingancishiswa, futhi ukusebenza kahle komklamo wenqubo kungathuthukiswa.

Ngamafuphi, izinga lokushisa lokucima kanye nesikhathi se-roller chain kuyimingcele ebalulekile yenqubo ethinta ukusebenza kwayo. Ekukhiqizweni kwangempela, kuyadingeka ukukhetha ngokufanele izinga lokushisa lokucima kanye nesikhathi ngokuya ngezinto ezibonakalayo, usayizi, izidingo zokusetshenziswa kanye nezinye izici ze-roller chain, futhi ulawule ngokuqinile inqubo yokucima ukuze uthole imikhiqizo ye-roller chain esezingeni eliphezulu nesebenza kahle. Ngesikhathi esifanayo, ngentuthuko eqhubekayo kanye nokusungula ubuchwepheshe bokucima, njengokucima kwe-isothermal, ukucima okulinganisiwe kanye nokusetshenziswa kobuchwepheshe bokulingisa ikhompyutha, ikhwalithi yokukhiqiza kanye nokusebenza kahle kwe-roller chain kuzothuthukiswa kakhulu ukuze kuhlangatshezwane nesidingo semakethe esikhulayo.