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Izimiso eziningana zokukhethwa kokuqala okwenziwe ulaka

Ukugqwala kwensimbi kukuyo yonke indawo, ngaso sonke isikhathi

Ukuvikela ukugqwala kwensimbi, indlela ejwayeleke kakhulu ukusebenzisa ukumboza ukuvikela ingaphezulu lemikhiqizo yensimbi. Indawo kumele ihlanzwe ngaphambi kokuvikelwa kokumbozwa. Amakhulu emikhiqizo nezimboni kufaka phakathi imikhumbi, amathangi okugcina, amabhuloho, izakhiwo zensimbi, iziteshi zamandla, izimoto, izitimela, imishini yamasosha, imishini ye-aerospace, njll. Kufanele iphathwe ngaphambi kokumbozwa. I-metal abrasive iyindlela ephumelela kunazo zonke yokuhlanza.

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Ama-abrasives ensimbi

Ngokuvamile, kukhona phonsa isibhamu sensimbi (okusezingeni eliphezulu carbon steel shot futhi ongaphakeme carbon steel shot), insimbi grit, i-iron shot, i-iron grit, insimbi engagqwali cut wire / conditioned shot, insimbi engagqwali gritinsimbi cut wire, ethwele grit yensimbi, njll. Ama-abrasives wensimbi asebenza kahle akulula ukuwaphula, uthuli oluphansi, ukusetshenziswa okuphansi, ukusebenza kahle kokuhlanza, nokusebenza okuhle komkhiqizo jikelele. Inganciphisa kakhulu izinga lokusetshenziswa komsebenzisi wokugcina, ngaleyo ndlela inciphise izindleko futhi inciphise ukukhishwa.

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Ngakho-ke umbuzo uwukuthi, ungakhetha kanjani ama-abrasives ensimbi esezingeni eliphakeme?

Ukuqinisekisa ukuthi umphumela wokwelashwa komhlaba ufinyelela ezingeni eligcwele, izinkomba ezimbili eziyinhloko zezinsimbi zensimbi: ukuhlanza ukusebenza kahle nokusetshenziswa.

Ukungaqondi okuningi ekukhetheni kwesibhamu sensimbi:

Ingabe i-cast iron shot rounder ingcono?

Ngabe usayizi wezinhlayiyana ufana kakhulu, ungcono?

Ukukhanya okukhanyayo, kungcono?

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Ingabe i-cast iron shot rounder ingcono?

Impendulo: Cha.

Enqubeni yokwakha nokulungisa isibhamu sensimbi, insimbi encibilikisiwe ipholile kusuka kuketshezi kuya kokuqinile, futhi iyancipha ngesikhathi senqubo yokupholisa. Lokhu kuncipha kwenziwa esimweni samahhala, futhi akukho riser njengokuthela ukujikijelwa okunezelwa kancane ngensimbi encibilikile lapho ivolumu ngemuva kokuncipha incipha, kuvela izinhlayiya ze-elliptical ezinendawo eguqile. Lolu hlobo lwezinhlayiya luthole ukuncipha okwanele, futhi ukwakheka akulona nxazonke kodwa isakhiwo siminyene. Kodwa-ke, uma isibhamu sensimbi esingavunyelwanga ngokugcwele, isakhiwo asiminyene, kukhona ukukhubazeka kwangaphakathi okufana ne-shrinkage porosity nezimbotshana zokuncipha.

Ukuphonsa amandla E = 1 / 2mv2, uma isakhiwo siminyene, ngevolumu efanayo, ikhwalithi yobuningi obukhulu kakhulu i-M, amandla amakhulu omthelela, futhi akukho lula ukuwaphula. Ngale ndlela, akulungile: insimbi eyindilinga yadubula kangcono.

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Ngabe usayizi wokusanhlamvu wensimbi udutshulwe ngomfaniswano ongaphezulu, kungcono?

Impendulo: Cha.

Emkhakheni wokuhlanza, ubuso bendawo yokusebenza obuzohlanzwa noma ukufuthwa kuzokwakha imigodi endaweni ehlanziwe. Kuphela lapho imigodi nemigodi ihlangana ngokugcwele, yonke indawo ingahlanzwa kahle.

Umfaniswano osayizi wezinhlayiya zensimbi yensimbi, kuthatha isikhathi eside ukufinyelela ukuhlangana okuphelele kwemigodi.Ngokudutshulwa kwensimbi okunesilinganiso esithile sokuxuba usayizi wezinhlayiyana, isibhamu esikhulu sensimbi esisetshenziselwa ukuhlanza, kanye nesibhamu esincane sensimbi izohlanza indawo ephakathi nendawo ephethwe izibhamu zensimbi ezinkulu

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Ukukhanya okukhanyayo, kungcono?

Impendulo: Cha.

Njengamanje kunezinhlobo ezimbili ze- okusezingeni eliphezulu carbon steel shot: ukudubula okukodwa kwensimbi okucimayo nokudubula okwenziwe kabili kwensimbi. Kunzima ukuhlukanisa nokwakheka, ubunzima, nesakhiwo se-metallographic. Kodwa-ke, isibhamu sensimbi esicishiwe kabili sinokusanhlamvu okuhle nokuphila okuphezulu kokukhathala, Izinhlamvu zensimbi eyodwa eqeda ukudubula yensimbi zimangele futhi impilo yokukhathala iphansi.I-shot single quenching steel shot donot icutshungulwa ngokushisa nokucisha, ifilimu i-Fe3O4 oxide eyakhiwe ku ubuso buncane, bubukeka bukhanya kakhulu; ngenkathi insimbi idutshulwa ngemuva kokuphathwa kwesibili kokucisha, ifilimu i-Fe3O4 ebusweni iyajiya, ayibonisi ukukhanya, futhi ayibukeki icwebezela. Ngakho-ke indawo ekhanyayo ayilinganisi imikhiqizo engcono, kepha uma icisha kabili insimbi noma cha inkinga ebaluleke kakhulu.


Isikhathi Iposi: Apr-20-2021