I-Laser cladding luhlobo olutsha lobugcisa bokugquma. Bubuchwephesha obuphezulu obubandakanya ukukhanya, oomatshini, umbane, imathiriyeli, ubhaqo kunye nolawulo. Bubuchwephesha obubalulekileyo obuxhasayo kwitekhnoloji yokuvelisa i-laser ephezulu kwaye inokusombulula iingxaki ezinokuthi iindlela zokuvelisa zemveli zingakwazi ukuzigqiba. Bubuchwephesha obuphezulu obuxhaswa kwaye bukhuthazwa ngurhulumente. Okwangoku, itekhnoloji yokugquma i-laser iye yaba yenye yeendlela ezibalulekileyo zokulungiselela izixhobo ezitsha, ukwenziwa ngokukhawuleza nangokuthe ngqo kwamalungu esinyithi, kunye nokuveliswa ngokutsha okuluhlaza kwamalungu esinyithi angaphumeleliyo. Isetyenziswe ngokubanzi kwinqwelomoya, i-petroleum, iimoto, ukwenziwa koomatshini, ukwakhiwa kweenqanawa, kunye nokuveliswa kokungunda. kunye namanye amashishini. Ukuze kukhuthazwe ushishino lwetekhnoloji ye-laser cladding, abaphandi abavela kwihlabathi liphela baye benza uphando olucwangcisiweyo kwiitekhnoloji eziphambili ezibandakanyekayo kwi-laser cladding kwaye benze inkqubela ebonakalayo. Kukho inani elikhulu lophando, amaphepha enkomfa, kunye namalungelo awodwa omenzi wechiza ekhaya nakwamanye amazwe azisa itekhnoloji ye-laser cladding kunye nokusetyenziswa kwayo okutsha: kubandakanywa izixhobo zokuvala i-laser, izixhobo, iinkqubo, ukubeka iliso kunye nokulawula, ukuhlolwa komgangatho, ukulinganisa inkqubo kunye nokulinganisa, njl. Ukuza kuthi ga ngoku, itekhnoloji yokugquma i-laser ayinakusetyenziswa kwimizi-mveliso kwinqanaba elikhulu. Ukuhlalutya izizathu, kukho izinto ezinje ngezinto ezijolise kurhulumente, imida ekuvuthweni kobuchwepheshe bokugquma ngelaser ngokwayo, kunye nenqanaba lokuqatshelwa kobuchwepheshe bokugquma ngelaser ngawo onke amacandelo oluntu. Ke ngoko, ukuze sifezekise usetyenziso olubanzi lwemizi-mveliso yetekhnoloji yokugquma i-laser, kufuneka sandise upapasho, sikhokelwe yimfuno yentengiso, sigxile ekwaphuleni izinto eziphambili ezithintela uphuhliso, kunye nokusombulula ubuchwephesha obuphambili obubandakanyekayo kwizicelo zobunjineli. Ndiyakholelwa ukuba kwixesha elizayo elingekude, Iinkalo zesicelo kunye nokuqina kobuchwepheshe be-laser cladding buya kuqhubeka nokwandisa.

Nantsi imizekelo embalwa yokusetyenziswa kwe-laser cladding: ugxininiso lwamandla ogxininiso lwe-laser beam inokufikelela kwi-1010 ~ 12W / cm2, kwaye izinga lokupholisa lezinto eziphathekayo linokuba liphezulu njenge-1012K / s. Olu phawu lubanzi aluboneleli kuphela ngamathuba okukhula kwamacandelo amatsha kwisayensi yezinto. Inika isiseko esomeleleyo kunye nesixhobo esingazange sibonwe ngaphambili sokufezekiswa kwezixhobo ezintsha okanye iindawo ezintsha zokusebenza. Ukunyibilika okudalwe yi-laser cladding kukude kwimo elinganayo yeemeko zokupholisa ngokukhawuleza phantsi kobushushu obuphezulu, okukhokelela ekwenziweni kwenani elikhulu lezisombululo eziqinileyo ezingaphezulu kwe-supersaturated, izigaba ezinometastable, kunye nezigaba ezitsha kulwakhiwo lokuqina, oluye lwabangela ukunyibilika okuthe kratya. iqinisekisiwe linani elikhulu lezifundo. Ibonelela ngeemeko ezintsha ze-thermodynamic kunye ne-kinetic yokwenza imigangatho esebenzayo ye-in-situ ye-autogenous-reinforced composite layers. Ngelo xesha, ukulungiswa kwezinto ezintsha ngeteknoloji ye-laser cladding sisiseko esibalulekileyo sokulungiswa kunye nokuveliswa kwakhona kweendawo ezingaphumelelanga phantsi kweemeko ezinzima kunye nokuveliswa ngokuthe ngqo kweengxenye zetsimbi. Ifumene ingqwalasela enkulu kunye nophando olunamacandelo amaninzi oluvela kuluntu lwezenzululwazi kunye namashishini kwihlabathi jikelele. Okwangoku, iteknoloji ye-laser cladding ingasetyenziselwa ukulungiselela i-iron-based, i-nickel-based, i-cobalt-based, i-aluminium-based, i-titanium-based, i-magnesium-based, kunye nezinye izinto ze-metal matrix composite. Ukuhlelwa ngokusebenza: iingubo ezinomsebenzi omnye okanye ezininzi zinokulungiswa, ezifana nokuxhatshazwa kokugqoka, ukuxhathisa kwe-corrosion, ukumelana nokushisa okuphezulu, njl., kunye neengubo ezikhethekileyo ezisebenzayo. Ukususela kumbono wenkqubo yezinto ezenza i-coating, iphuhliswe kwi-binary alloy system ukuya kwi-multi-component system. Uyilo lokubunjwa kwe-alloy kunye nokusebenza kwezinto ezininzi kwiinkqubo zamacandelo amaninzi zikhokelo zophuhliso ezibalulekileyo zokulungiswa kwezinto ezintsha nge-laser cladding kwixesha elizayo. Uphando olutsha lubonisa ukuba izinto zentsimbi ezisekwe kwintsimbi zilawula usetyenziso lobunjineli belizwe lam. Ngelo xesha, ukungaphumeleli kwezinto zetsimbi (ezifana nokugqwala, ukugqoka, ukukhathala, njl.) Uninzi lwenzeka kwindawo yokusebenza yamacandelo, kwaye umphezulu kufuneka uqiniswe. Ukuze uhlangabezane neemeko zenkonzo ye-workpiece, usebenzisa iziqwenga ezinkulu ze-in-situ-self-generated particle-reinforced steel-reinforced steel-based composite materials aziyi kuchitha nje izinto eziphathekayo kodwa zibiza kakhulu. Ngakolunye uhlangothi, xa uhlola i-biomaterials yendalo ngokwembono ye-bionics, ukubunjwa kwabo kuxinene ngaphandle kwaye kunqabile ngaphakathi, kwaye iipropati zabo zinzima ngaphandle kwaye zinzima ngaphakathi. Ngaphezu koko, ukuxinana-okuncinci, ukuqina kobunzima buguquka kwi-gradient ukusuka ngaphandle ukuya ngaphakathi. Iimpawu zezinto eziphilayo zendalo Isakhiwo esikhethekileyo senza ukuba sibe nokusebenza kakuhle kakhulu.

Ngokweemeko ezikhethekileyo zenkonzo kunye neemfuno zokusebenza kwemathiriyeli yobunjineli, kukho imfuneko engxamisekileyo yokuphuhlisa imathiriyeli yentsimbi yomphezulu edibeneyo yentsimbi enemidibaniso eyomeleleyo nenzima kunye nokusebenza kwegradient. Ke ngoko, ukusebenzisa i-laser cladding ukulungisa i-gradient esebenzayo kwi-situ-eyenziwe yodwa i-metal matrix composites edityaniswe ngesinyithi kwi-substrate ayisosidingo esingxamisekileyo sokwenza ubunjineli kodwa yinto engenakuthintelwa kuphuhliso lwetekhnoloji yokuguqulwa komphezulu we-laser. . Itekhnoloji yokugquma i-Laser kuye kwaxelwa ukuba ilungiselele i-in-situ ye-autogenous ye-autogenous ye-metal matrix composites kunye nezixhobo ezisebenzayo, kodwa uninzi lwazo luhlala kwinqanaba lolwakhiwo kunye nohlalutyo lokusebenza, ulawulo lweeparamitha zenkqubo, ubungakanani, isithuba, kunye nomlinganiselo wevolumu. isigaba sokuqinisa Ayikafikeleli kwinqanaba elilawulekayo. Umsebenzi we-gradient wenziwe nge-multi-layer coating, kwaye ngokuqinisekileyo kukho ingxaki ye-interface ebuthathaka yokudibanisa phakathi kweeleya. Kusekho indlela ende ekufuneka ihanjwe ngaphambi kokuba isebenze. Ukusebenzisa itekhnoloji yokugquma i-laser ukulungiselela i-metal-based surface composite materials with controllable particle size, ubuninzi, kunye nokusabalalisa, amandla ahambelana ngokufanelekileyo kunye nokuqina, kunye nokudibanisa imisebenzi ye-gradient kunye ne-in-situ-self-generated self-generated particle reinforcement yindlela ebalulekileyo yophuhliso kwixesha elizayo. Umxholo wophando ubandakanya:

1. Itekhnoloji, iindlela kunye nemigaqo yokwakheka kwezinto ezigqunyiweyo, ulwakhiwo kunye noyilo lwentsebenzo kunye nolawulo lwetekhnoloji yokuphunyezwa kwenkqubo.
2. Ukusekwa kwemodeli ye-thermodynamic kunye ne-kinetic yokuqinisa i-particle yokuqinisa i-precipitation yesigaba, ukukhula kunye nokomelezwa kwe-autogenous graded autogenous-reinforced metal matrix composites ezilungiselelwe yi-laser cladding.
3. .I-Particle-reinforced phase morphology, i-structure, umsebenzi kunye noyilo oluhlanganisiweyo lwe-bionic kunye nokulawula iteknoloji yobukhulu, ubuninzi kunye nokusabalalisa.
4. Uphando kwimigaqo, imiba ephambili kunye neendlela zenkqubo yokwakheka kokugquma, ulwakhiwo kunye nolawulo lwemithamo yokusebenza.
5. Uqwalaselo, ulawulo lohlalutyo, kunye nokubonakaliswa kojongano olukhulu kunye noluncinci; ukuhlalutya kunye nokufunyanwa kweempawu eziqhelekileyo zemigangatho esebenzayo kwi-situ-i-particle-reinforced metal matrix composites, kunye nokuziphatha kokugqoka kunye neendlela zokungaphumeleli phantsi kweemeko ezahlukeneyo zokusebenza. Ukuphumelela kule mixholo yophando kunokusombulula ingxaki yokungahambelani ehambelanayo phakathi kokugquma kunye ne-substrate kunye nokuthambekela ekuqhekekeni, kunye nokukhuthaza ukwandiswa kwentsimi yesicelo se-laser cladding technology.