I-crystallizer iwumgogodla womshini wokuphonsa oqhubekayo. Iwumshini ofaka insimbi encibilikisiwe kuwo, futhi ngemva kokupholisa, ungqimba olungaphandle lwensimbi encibilikisiwe lwakha igobolondo eliqinile eliqhubekayo ukuze lakhe i-cast slab, futhi i-cast slab ikhishwa kancane kancane. Amapuleti ethusi ku-crystallizer athambekele ekuqhekekeni okushisayo, ukuguga, nokugqwala ngenxa yezimo zokusebenza asetshenziswayo. Ukuthuthukisa ubulukhuni bezinga lokushisa eliphezulu, ukumelana nokugqokwa, nokumelana nokukhathala okushisayo, nokwelula impilo yesevisi ye-crystallizer copper plate surface kuyisihloko socwaningo esibaluleke kakhulu embonini yamanje ye-metallurgical.

Ingemuva lekristalu le-Copperplate

I-crystallizer iwumgogodla womshini wokuphonsa oqhubekayo. Iwumshini ofaka insimbi encibilikisiwe kuwo, futhi ngemva kokupholisa, ungqimba olungaphandle lwensimbi encibilikisiwe lwakha igobolondo eliqinile eliqhubekayo ukuze lakhe i-cast slab, futhi i-cast slab ikhishwa kancane kancane. Amapuleti ethusi ku-crystallizer athambekele ekuqhekekeni okushisayo, ukuguga, nokugqwala ngenxa yezimo zokusebenza asetshenziswayo. Ukuthuthukisa ubulukhuni bezinga lokushisa eliphezulu, ukumelana nokugqokwa, nokumelana nokukhathala okushisayo, nokwelula impilo yesevisi ye-crystallizer copper plate surface kuyisihloko socwaningo esibaluleke kakhulu embonini yamanje ye-metallurgical.

Njengamanje, izigayo ezinkulu zensimbi ezifuywayo kanye nezikhungo zocwaningo zilungiselela ukugqokwa okungagugi ebusweni bamapuleti ethusi esikhunta ngokusebenzisa izindlela zokwelapha ezingaphezulu njenge-electroplating kanye nokufutha okushisayo ukuze kuthuthukiswe ukumelana kwazo nokugqokwa. Nakuba lezi zindlela zenqubo zinezindleko eziphansi uma kuqhathaniswa, ukumboza kanye ne-substrate kuhlanganiswe ngomshini, amandla okubopha abuthakathaka, ukushuba kokumboza kulinganiselwe, futhi amaphutha anjengokuxebuka kanye nokuqhekeka kujwayele ukwenzeka ngesikhathi sokusetshenziswa, nokuqinisa ubuso. umphumela awulungile. Ubuchwepheshe be-laser cladding bungasetshenziswa ukulungisa i-coating engagugi ehlanganiswe nge-metallurgically nepuleti lethusi. I-coating inamandla okubopha aqinile, ukujiya okulawulekayo, impilo ende yesevisi, futhi akukho ukungcoliswa kwemvelo. Ngakho-ke, ubuchwepheshe be-laser cladding busetshenziselwa ukucwebezela ukugqoka. Ukuqiniswa kwendawo yamapuleti ethusi kunezinzuzo ezinhle.

Inqubo yokuvala i-Laser

1. Izinkinga zobuchwepheshe

• I-Copper ine-thermal conductivity enhle kakhulu, futhi kunzima ukwenza ichibi elincibilikisiwe noma ngabe i-welding evamile noma i-laser cladding.
• Izinto zokwakha zethusi, ikakhulukazi izinto zethusi ezibomvu, zibonakala kakhulu kuma-lasers, ngokubonakala okungaphezu kuka-80% kuma-lasers amaza ajwayelekile.
• Izinto zokugqoka zinzima ukuhlangabezana ngokugcwele nezidingo zobuchwepheshe zomsebenzi wepuleti yethusi.
• Ukulawula ukuqhekeka kwe-coating kunzima.

I-cladding powder yi-HR-Ni-S14 (Ni60), futhi izithako ziboniswa kuThebula 1.

I-Copperplate: ipuleti lethusi le-chromium zirconium.

Izisetshenziswa: imishini ye-fiber laser, i-nozzle enamaphuzu amathathu, indawo engu-3-5mm, izinga lokusebenzisa impushana 65-75%.

Imingcele yenqubo ikhonjisiwe kuThebula 3.

2. Imiphumela yokuhlolwa

1) Ukwakhiwa komhlaba:
I-cladding yenziwa epuleti lethusi, futhi umphumela wokwakheka kwe-cladding uboniswa kuMfanekiso 3.27. Indawo yokumboza yakheke kahle, futhi isicaba, nokuguquguquka okuncane, akukho ukungcoliswa kwempushana okusobala, nokumanzisa okuhle, futhi azikho iziphambeko ezifana nokuqhekeka endaweni ethola amaphutha anombala.

2) Ukuhlolwa kwe-Metallographic:
Ngemva kokumboza, sika isampula ende engu-25mm endizeni eqondane nendawo yokuhlolwa kwe-metallographic, njengoba kukhonjisiwe kuMfanekiso 3.28. Kusukela ekuqaphelisweni kwe-macroscopic, ukuhlehla okungaphezulu kuncane, ungqimba olubambekayo lunogqinsi oluthile, isixhumi esibonakalayo esicwebezelayo sicacile futhi sinamagagasi, futhi ukujula kokungena kukhona, okuwubufakazi benhlanganisela ye-metallurgical ye-cladding layer kanye ne-copper plate. . Kusukela ekubonweni kwe-microscopic, isendlalelo sokuvala sihlanganiswe kahle nesisekelo, futhi isixhumi esibonakalayo sifiphalisiwe. Izinto ezimbili zifakwe futhi zincibilike komunye nomunye ngezinga elithile, okuyinhlanganisela enhle ye-metallurgical. Isendlalelo sokuvala siminyene futhi asinasici, sinogqinsi luka-0.5-0.7mm.

3) Ukuhlolwa kokuqina okuncane:
Sebenzisa isihloli sokuqina sokuqina kwe-Vickers esinomthwalo ongu-0.2kg ukuze uthole ukuqina kwezinto eziyisisekelo kanye nongqimba oluhlanganisiwe, njengoba kuboniswe kuMfanekiso 3.10. Isamba samaphuzu angu-8 ahlolwe kusukela kusisekelo kuya endaweni ethinteke ukushisa kanye nosendlalelo sokuvala. Imiphumela yokuhlolwa ikhonjiswe kuThebula lesi-4.

4) Ukuhlolwa kokushaqeka okushisayo

Ukuhlolwa kokushaqeka okushisayo kwenziwa ngokwezinga likazwelonke le-GB/T 5270-2005/ISO2819:1980, nezindlela ezimbili zokupholisa zasetshenziswa ekuhlolweni. Indlela yokuqala iwukushisa ku-250 ° C bese uyigcina imizuzu engu-10, bese ucwilisa uhlangothi lwesampula ngaphandle kwesendlalelo se-cladding emanzini, kodwa hhayi ku-cladding layer, linda kuze kube yilapho selipholile ngokuphelele ekushiseni kwamanzi, bese. yikhiphe bese uyishisa kabusha, phinda izikhathi ezingu-10 sezizonke. Ngemva kokuqedwa, enye indlela yokupholisa iyenziwa. Umehluko kusukela ezikhathini zangaphambilini ezingu-10 ukuthi ngemva kokuba isampula ishisiwe, isampula yonke ehlanganisa isendlalelo se-cladding sicwiliswa emanzini futhi sicinywe. Ngemva kokuqedwa, indlela yokuthola amaphutha ombala isetshenziselwa ukuthola ukuthi ingabe kukhona imifantu phezulu.

Imiphumela yokuhlonza amaphutha mihle, ayinakho ukuqhekeka, ukuxebuka nokunye ukukhubazeka.

I-3. Isicelo

Ukusetshenziswa kobuchwepheshe be-laser cladding ukukhiqiza izimbotshana ezingagugi zamapuleti ethusi e-crystallizer kuwubuchwepheshe obuqinisayo obuvelayo. Uma kuqhathaniswa nezinye izindlela zokuqinisa, kunezinzuzo ezinkulu ekusebenzeni kokumboza, isikhathi sokuphila, ukuvikelwa kwemvelo, izimo zenqubo, ukukhethwa kwezinto ezibonakalayo, njll. Ingakwazi ukuthuthukisa izakhiwo ezingaphezulu zesikhunta ngezinga elikhulu, futhi ifinyelele inhloso yokuthuthukisa ikhwalithi ama-billet eqhubekayo okusakaza, ukwelula impilo yesikhunta, nokunciphisa izindleko zokukhiqiza.