Umkhiqizi Wensimbi

Umuzwa Wokukhiqiza Weminyaka eyi-15
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Imiqondo eminingana evamile yokwelapha ukushisa

1. Ukwenza kube ngokwejwayelekile:
Inqubo yokwelapha ukushisa lapho izingxenye zensimbi noma zensimbi zishiselwa ezingeni lokushisa elifanele ngaphezu kwephuzu elibalulekile elingu-AC3 noma i-ACM, eligcinwe isikhathi esithile, bese lipholiswa emoyeni ukuze kutholwe isakhiwo esifana ne-pearlite.

2. Ukugcwalisa:
Inqubo yokwelapha ukushisa lapho izingcezu zensimbi ze-hypoeutectoid zishiselwa zibe ngama-degree angu-20-40 ngaphezu kwe-AC3, zigcinwe zifudumele isikhathi esithile, bese zipholiswa kancane esithandweni (noma zigqitshwe esihlabathini noma zipholiswe kumcako) zibe ngaphansi kwama-degree angu-500 esithandweni. umoya.

3. Ukwelashwa kokushisa kwesisombululo esiqinile:
Inqubo yokwelapha ukushisa lapho i-alloy ishiswa khona ekushiseni okuphezulu futhi igcinwe ekushiseni okungaguquki esifundeni sesigaba esisodwa ukuze ichithe ngokugcwele isigaba esidlulele esixazululweni esiqinile, bese ipholiswa ngokushesha ukuze ithole isisombululo esiqinile esine-supersaturated.

4. Ukuguga:
Ngemva kokuba ingxubevange ithole ukwelashwa okuqinile kokushisa okuqinile noma ukuguqulwa kwepulasitiki okubandayo, izakhiwo zayo zishintsha ngokuhamba kwesikhathi lapho ibekwe ekamelweni lokushisa noma ngaphezudlwana kwegumbi lokushisa.

5. Ukwelashwa kwesixazululo esiqinile:
chaza ngokugcwele izigaba ezihlukahlukene ku-alloy, uqinise isixazululo esiqinile futhi uthuthukise ukuqina nokumelana nokugqwala, uqede ukucindezeleka nokuthambisa, ukuze uqhubeke nokucubungula nokwenza.

6. Ukwelashwa kokuguga:
Ukushisa nokubamba ezingeni lokushisa lapho isigaba sokuqinisa sikhuphuka, ukuze isigaba sokuqinisa sikhuphuke futhi sibe lukhuni, sithuthukisa amandla.

7. Ukuqeda:
Inqubo yokwelapha ukushisa lapho insimbi iqinisekiswa khona bese ipholiswa ngenani elifanele lokupholisa ukuze ucezu lomsebenzi lwenze uguquko lwesakhiwo olungazinzile olufana ne-martensite kukho konke noma ngaphakathi kwebanga elithile lesigaba esiphambanayo.

8. Ukushisa:
Inqubo yokwelapha ukushisa lapho i-workpiece ecishiwe ishiselwa ekushiseni okufanelekile ngaphansi kwephuzu elibalulekile AC1 isikhathi esithile, bese ipholiswa kusetshenziswa indlela ehlangabezana nezidingo zokuthola isakhiwo nezakhiwo ezidingekayo.

9. I-Carbonitriding yensimbi:
I-Carbonitriding inqubo yokufaka kanyekanye ikhabhoni ne-nitrogen ongqimbeni olungaphezulu lwensimbi. Ngokwesiko, i-carbonitriding ibizwa nangokuthi i-cyanidation. Njengamanje, i-carbonitriding yegesi esezingeni eliphakathi nendawo ne-low-temperature carbonitriding (okungukuthi, i-gas soft nitriding) isetshenziswa kabanzi. Inhloso eyinhloko yokushisa okuphakathi kwegesi carbonitriding ukuthuthukisa ubulukhuni, ukumelana nokugqoka kanye namandla okukhathala kwensimbi. I-carbonitriding yegesi esezingeni eliphansi ngokuyinhloko i-nitriding, futhi inhloso yayo eyinhloko ukuthuthukisa ukumelana nokugqoka nokumelana nokubanjwa kwensimbi.

10. Ukunciphisa kanye nokunciphisa:
Ngokuvamile kuyisiko ukuhlanganisa ukucisha kanye nezinga lokushisa eliphezulu njengokwelashwa kokushisa okubizwa ngokuthi ukucisha kanye nokushisa. Ukwelashwa kokucisha nokushisa kusetshenziswa kakhulu ezingxenyeni ezibalulekile zesakhiwo, ikakhulukazi lezo zinduku zokuxhuma, amabhawodi, amagiya namashafu asebenza ngaphansi kwemithwalo eshintshanayo. Ngemuva kokucisha kanye nokwelashwa kokushisa, isakhiwo se-sorbite esiphundu sitholakala, futhi izakhiwo zayo zemishini zingcono kunezo zesakhiwo se-sorbite esijwayelekile esinobunzima obufanayo. Ukuqina kwayo kuncike ezingeni lokushisa eliphezulu lokushisa futhi kuhlobene nokuzinza kwensimbi kanye nosayizi wezingxenye eziphambanayo zocezu lokusebenza, ngokuvamile phakathi kwe-HB200-350.

11. Ukugqama:
Inqubo yokwelapha ukushisa esebenzisa okokusebenza kokubhula ukuhlanganisa ama-workpiece amabili ndawonye.


Isikhathi sokuthumela: Apr-11-2024