Kungani amapayipi ensimbi kufanele aphathwe ngokushisa?

Umsebenzi wokwelapha ukushisa ukuthuthukisa izakhiwo zemishini yepayipi yensimbi, ukuqeda ukucindezeleka okusele futhi uthuthukise ukusebenza kwayo kokusika.

Ngokwezinjongo ezahlukene zokwelapha ukushisa, inqubo yokwelapha ukushisa ingahlukaniswa ngezigaba ezimbili: ukwelashwa kokushisa kokuqala kanye nokwelashwa kokushisa kokugcina.

1. Ukwelashwa kokushisa kokuqala

Inhloso yokwelashwa kokushisa kokuqala ukuthuthukisa ukusebenza kahle, ukuqeda ukucindezeleka kwangaphakathi nokulungisa isakhiwo esihle se-metallographic sokwelashwa kokushisa kokugcina. Izinqubo zayo zokwelashwa kokushisa zihlanganisa ukukhishwa kwe-annealing, normalizing, ukuguga, ukucisha kanye nokushisa, njll.

(1) Ukukhipha kanye Nokujwayela

I-Annealing kanye ne-normalization isetshenziselwa izikhala ezishisayo ezisebenzayo. Ngensimbi ye-carbon steel ne-alloy enokuqukethwe kwekhabhoni enkulu kuno-0.5%, ukwelashwa kwe-anneal ngokuvamile kusetshenziselwa ukunciphisa ubulukhuni bayo futhi kulula ukuyisika; Ngensimbi ye-carbon steel ne-alloy enokuqukethwe kwekhabhoni ngaphansi kuka-0.5%, ukwelashwa okujwayelekile kwamukelwa ukuze kugwenywe ukunamathela ithuluzi ngesikhathi sokusika. Ivamise ukuhlelwa ngemuva kokukhiqiza okungenalutho nangaphambi komshini onzima.

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(2) Ukwelashwa kokuguga

Ukwelashwa kokuguga kusetshenziselwa ikakhulukazi ukuqeda ukucindezeleka kwangaphakathi okukhiqizwa ekukhiqizeni okungenalutho kanye nomshini.

Ukuze ugweme umthwalo womsebenzi wokuthutha owedlulele, izingxenye ezinokunemba okuvamile, ukwelashwa kokuguga kungahlelwa ngaphambi kokuqeda. Kodwa-ke, ezingxenyeni ezinezidingo zokunemba okuphezulu, izinqubo ezimbili noma ngaphezulu zokwelashwa kokuguga zizohlelwa. Ukwelashwa kokuguga ngokuvamile akudingekile ezingxenyeni ezilula.

(3) Isimo

Ukucisha kanye nokushisa kubhekisela ekwelapheni izinga lokushisa eliphezulu ngemva kokucisha. Ingathola isakhiwo se-sorbite esilinganayo futhi esihle futhi silungiselele ukunciphisa ukuguqulwa ngesikhathi sokucisha indawo kanye nokwelashwa kwe-nitriding esikhathini esizayo. Ngakho-ke, ukucisha nokushisa kungasetshenziswa njengokwelashwa kokushisa kokuqala.

2. Ukwelashwa kokushisa kokugcina

Inhloso yokwelashwa kokushisa kokugcina ukuthuthukisa izakhiwo zemishini njengokuqina, ukumelana nokugqoka kanye namandla.

(1) Ukucisha

Ukucisha kuhlanganisa ukucisha indawo kanye nokucisha okubalulekile. Phakathi kwazo, ukucisha ingaphezulu kusetshenziswa kakhulu ngenxa ye-deformation yayo encane, i-oxidation kanye ne-decarburization. Ngaphezu kwalokho, ukucisha ingaphezulu nakho kunezinzuzo zamandla aphezulu angaphandle, ukumelana nokugqokwa okuhle, ukuqina okuhle kwangaphakathi kanye nokumelana nomthelela onamandla.

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(2) Ukucinywa kweCarburizing

I-Carburizing kanye nokucisha kusebenza ku-low carbon steel kanye ne-low alloy steel. Okokuqala, khulisa okuqukethwe kwekhabhoni kongqimba olungaphezulu lwezingxenye, futhi uthole ubulukhuni obuphezulu ngemuva kokucisha, kuyilapho umnyombo usagcina amandla athile kanye nokuqina okuphezulu kanye nepulasitiki.

(3) Ukwelashwa kwe-Nitriding

I-Nitriding iyindlela yokwelapha yokwenza ama-athomu e-nitrogen angene endaweni yensimbi ukuze athole ungqimba lwezinhlanganisela eziqukethe i-nitrogen. I-Nitriding layer ingathuthukisa ubulukhuni, ukumelana nokugqoka, amandla okukhathala nokumelana nokugqwala kwezingxenye. Njengoba izinga lokushisa lokwelashwa kwe-nitriding liphansi, ukuguqulwa kuncane, futhi ungqimba lwe-nitriding luncane (ngokuvamile alukho ngaphezu kuka-0.6 ~ 0.7mm), inqubo ye-nitriding kufanele ihlelwe sekwephuzile ngangokunokwenzeka. Ukuze kuncishiswe ukuwohloka ngesikhathi se-nitriding, ukushisa okuphezulu okushisa ukuze kuqedwe ingcindezi ngokuvamile kuyadingeka ngemva kokusika.


Isikhathi sokuthumela: Mar-04-2022
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