Ucingo lokuwelda oluqinileyo
Uhlulo ngokwezinto ezisetyenzisiweyo kunye noBume bazo
1. Iingcingo zokuWelda ezisekelwe kwi-iron-based Hardfacing
Iingcingo zokuwelda ezisekelwe kwintsimbi zezona zinto zisetyenziswa kakhulu kwi-hardfacing, ezahlulwe zibe zezi zilandelayo:
Iingcingo eziqinileyo zentsimbi yePearlitic: Isetyenziswa kakhulu kwiindawo zokulungisa izinto ezisetyenziswayo phantsi koxinzelelo oluphantsi, njengeeshafti kunye neegiya. Ubunzima be-overlay buqala kwi-20 ukuya kwi-40 HRC. Isebenza kakuhle kwaye inobunzima obugqwesileyo.
Iingcingo eziqinileyo zentsimbi yeMartensitic: I-overlay yenza isakhiwo se-martensitic emva kokucima, enobunzima obuyi-40 ukuya kwi-60 HRC. Inika ukumelana okuhle kokuguguleka kwaye ifanelekile kwiindawo zokusebenza phantsi kweemeko zokuguguleka eziphakathi neziphezulu, kubandakanya amaqokobhe e-crusher roll kunye namazinyo e-excavator bucket.
Iingcingo zentsimbi eqinileyo ezine-chromium ephezulu: Yenziwe ngentsimbi exutyiweyo ene-alloy ephezulu enomxholo we-chromium oyi-15% ukuya kwi-30%. Inani elikhulu lee-hard chromium carbide phases ziyawa kwi-overlay, zinika ubunzima obuyi-55 ukuya kwi-65 HRC. Olu hlobo lunokumelana nokuguguleka okugqwesileyo kunye nokumelana nokugqwala okuthile, kwaye lolona cingo luqinileyo olusetyenziswa kakhulu kumashishini emigodi kunye ne-metallurgy.
2. Iingcingo zokuWelda ezisekelwe kwiNickel
Njengoko i-nickel ifana ne-matrix kunye ne-chromium, i-molybdenum, i-boron kunye nezinye izinto zokudibanisa, i-overlay yeengcingo eziqinileyo ezisekelwe kwi-nickel inokumelana nokugqwala okugqwesileyo kunye nokumelana nobushushu obuphezulu. Ubunzima bayo ngokubanzi buyi-30 ukuya kwi-50 HRC, kwaye ukuqina kwayo kungcono kunoko kwe-overlay yesinyithi esine-chromium ephezulu. Isetyenziswa kakhulu kwi-hardfacing yeenxalenye ezifuna ukumelana nokugqwala kunye nokugqwala kobushushu obuphezulu, njengeendawo zokutywina iivalvu, izikhongozeli zeekhemikhali kunye neeblade ze-turbine zomphunga. Ixabiso layo liphezulu kakhulu kuneleengcingo ezisekelwe kwisinyithi.
3. Iingcingo zokuWelda ezisekelwe kwiCobalt
Xa zithathwa njenge-cobalt njengeyona nto iphambili kwi-alloy, ezi ntambo zinobunzima obuphezulu bokushisa, ukumelana nokugqwala kunye nokumelana nokudinwa kubushushu. Zingasebenza ngokuqhubekayo kwi-600℃ ukuya kwi-800℃. Zisetyenziswa kakhulu kwiimeko zokusebenza eziphezulu ezifana neevalvu zobushushu obuphezulu, ii-hot forging dies kunye nee-turbine blades. Ngenxa yeendleko eziphezulu, umda wokusetyenziswa kwazo ulinganiselwe.
4. Iingcingo zokuWelda zeTungsten Carbide eziqinileyo
Iinxalenye ze-tungsten carbide zisebenza njengezigaba eziqinileyo kwaye zidityaniswe ne-metal matrix. I-overlay ifikelela kubunzima obuyi-60 ukuya kwi-70 HRC, kwaye ukumelana kwayo nokuguguleka kuphindwe kabini ukuya kathathu kune-high-chromium cast iron overlays eqhelekileyo. Isetyenziswa kakhulu kwiindawo ezinengxaki yokuguguleka okuncinci, njengee-shield machine cutterheads, ii-dredge cutters kunye nee-coal chutes. Ingxaki yayo ephambili kukuguguleka okuphezulu kunye nokungaxhathisi kakuhle.
Uhlulo ngokweNkqubo yoMveliso kunye neFomu
1. Iingcingo zokuWelda eziqinileyo
Zenziwe ngokunyibilikisa i-alloy kunye nomzobo weengcingo, iingcingo eziqinileyo zinokwakheka okufanayo nokuzinzileyo, inkqubo yokuvelisa elula kunye nexabiso eliphantsi. Zisetyenziswa kakhulu ekudibaniseni ngegesi kunye nokudibanisela i-arc engaphantsi komhlaba.
2. Iingcingo zokuWelda zeFlux-cored Hardfacing
Olu hlobo lwentambo lune-sheath yangaphandle yentsimbi ethambileyo egcwele umgubo we-alloy, iziqinisi ze-arc, i-deoxidizers kunye nezinye izinto. Ukusebenza kwe-overlay kunokulungiswa ngokulula ngokutshintsha ifomula yepowder. Isebenza kakuhle kakhulu, i-arc ye-welding ezinzileyo kunye nembonakalo ye-weld egudileyo. Njengemveliso ekhula ngokukhawuleza kushishino lwe-hardfacing kwiminyaka yakutshanje, isabelo sayo semarike siye sadlula kancinci eso seentambo eziqinileyo.
Uhlu ngokwendlela yokuWelding
Zahlulwe zibe ziintambo eziqinileyo ezikhuselwe yigesi, iintambo eziqinileyo ezifakwe kwi-arc engaphantsi komhlaba, iintambo eziqinileyo ezikhuselweyo kunye neentambo eziqinileyo ezifakwe kwi-arc yegesi ye-tungsten. Phakathi kwazo, iintambo eziqinileyo ezikhuselweyo azifuni gesi yokukhusela yangaphandle, nto leyo eyenza ukuba zilungele ukwakhiwa ngaphandle kwindawo kwaye zisetyenziswe kakhulu ekulungiseni izinto ezinkulu ezisetyenziswa entsimini.
Imigaqo yoKhetho lweeNtambo zokuWelda eziqinileyo
Ukukhethwa kweentambo zokuwelda ezifasazela nzima kuya kuthathela ingqalelo izinto ezintathu eziphambili: iimeko zokusebenza, uhlahlo lwabiwo-mali lweendleko kunye neemfuno emva kokulungiswa.
Ukukhetha kusekelwe kuhlobo lokunxiba kunye neemeko zenkonzo
Ukuguguleka okuncinci okurhabaxa: Beka phambili iingcingo zesinyithi ezifakwe i-chromium ephezulu okanye iingcingo ze-tungsten carbide, ezifana ne-LZ60 kunye ne-D60.
Ukuguga okuphakathi nokuxinezeleka kakhulu: Khetha iingcingo zentsimbi ze-martensitic ezilungelelanisa ukuqina kunye nokumelana nokuguguleka, ezifana ne-D50 kunye ne-414N.
Inkonzo edlakazelayo neyobushushu obuphezulu: Khetha iingcingo ezisekelwe kwi-nickel okanye kwi-cobalt, kuquka i-ERNiCrMo-4 kunye neStellite 6.
Ukubuyiselwa kwee-shafts kunye neegiya ngokwemilinganiselo: Sebenzisa iingcingo zentsimbi ze-pearlitic-martensitic ukuqinisekisa ukuba zisebenza kakuhle.
Ukukhetha ngokusekelwe kuhlahlo lwabiwo-mali lweendleko
Iintambo ezisekelwe kwisinyithi zihlala zixabisa i-10~50 RMB ngekhilogram, iingcingo ezisekelwe kwi-nickel kwi-100~300 RMB ngekhilogram, kunye neengcingo ezisekelwe kwi-cobalt ezingaphezu kwe-500 RMB ngekhilogram. Ngenxa yokuhlangabezana neemfuno zokusebenza, iintambo ezisekelwe kwisinyithi zikhethwa ukunciphisa iindleko.
Ukukhetha ngokusekelwe kwiimfuno zasemva kokucubungula
Ukuba kufuneka i-machining emva kokufakelwa i-hardfacing, sebenzisa iingcingo ze-pearlitic okanye ze-martensitic ezinobunzima obungaphantsi kwe-45 HRC. Ukuba i-workpiece ingafakwa kwinkonzo ethe ngqo ngaphandle kokuqhubekeka nokucubungula, kuyacetyiswa ukuba iingcingo ezinobunzima obuphezulu kunye nokumelana nokuguguleka okuphezulu.
IV. Amanqaku malunga nokusetyenziswa kweengcingo zokuwelda eziqinileyo
Unyango lwangaphambi komsebenzi
Susa iileya zeoyile, umhlwa kunye nokudinwa kumphezulu wezinto zokusebenza ngaphambi kokuba ufake izinto eziqinileyo ukuze kuthintelwe iziphene ezifana nokuqhekeka, ukufakwa kwe-slag kunye nokuqhekeka kwe-overlay. Kwizinto zokusebenza ezisetyenzisiweyo eziqhekekileyo, zonke iintanda kufuneka zisuswe ngokupheleleyo ngaphambi kokuba zifakwe kwi-welding.
Ukufudumeza kunye nokupholisa kancinci
Xa usebenzisa iingcingo ezinobunzima obuphezulu kwizinto zokusebenza ezingqindilili ngaphezu kwe-20 mm, fudumeza i-workpiece ukuya kwi-150℃ ~ 300℃. Faka i-thermal insulation ukuze upholise kancinci emva kokuwelda ukuze uphephe ukuqhekeka kwi-overlay. Olu vavanyo lubaluleke kakhulu kwi-martensitic kunye ne-high-chromium cast iron overlayers ezinobunzima obuphezulu.
Ulawulo lweeparamitha ze-hardfacing
Lungisa umsinga we-welding kunye ne-voltage ngokwe-wire diameter. Kwi-wire ene-flux-core enobubanzi obuyi-1.2 mm esetyenziswa kwi-gas shielded welding, umsinga uhlala usetwa kwi-200~300 A kunye ne-voltage kwi-25~30 V. Umsinga ophezulu kakhulu uya kutshisa izinto ze-alloy kwaye uphazamise ukusebenza kwe-overlay.
Ulawulo lwezinga lokuxuba
Sebenzisa ubushushu obuphantsi ngexesha lokufakelwa kwentsimbi eqinileyo ukuze unciphise ukungena kwesinyithi esisisiseko kwaye unciphise ukunyibilika, ukuze ugcine ukwakheka kwe-alloy ye-overlay kuhambelana nemigangatho yoyilo. Ngokubanzi, ii-overlay passes ezi-2 ukuya kwezi-3 zanele ukuhlangabezana neemfuno zokusebenza.
Ukhuseleko lokhuseleko
Umsi wokuwelda kunye nemitha ye-arc ziyaveliswa ngexesha lokufakelwa kwe-hardfacing. Abaqhubi kufuneka banxibe iimaski zothuli kunye nezigcina-ntloko zokuwelda, kwaye baqinisekise ukuba umoya ungena ngokwaneleyo kwindawo yokusebenza.
V. Iindlela zoPhuhliso lweShishini leeNtambo eziqinileyo
Iingcingo ezine-Flux-core ezithatha indawo yeengcingo eziqinileyo
Njengoko zinokulungiswa okuguquguqukayo kokwakheka, ukusebenza kakuhle kokufakwa kwe-diposition kunye nokwenziwa kakuhle kwe-weld, iingcingo eziqinileyo ezine-flux-core ziya zithatha indawo yeengcingo eziqinileyo zemveli kancinci kancinci, kwaye isabelo sazo semarike sikhula kancinci kancinci.
Uphuhliso olujolise ekusebenzeni kakuhle
Imfuno yeengcingo ezikhethekileyo eziqinileyo ezinokumelana nokuguguleka okuphezulu, ukumelana nokugqwala kunye nokumelana nobushushu obuphezulu kwiimeko zokusebenza ezinzima iyaqhubeka isanda. Iingcingo eziqinileyo ze-tungsten carbide eziqinisiweyo kunye neziqinisiweyo ze-nano-reinforced ziye zasetyenziswa kancinci kancinci kwimizi-mveliso.
Uphuhliso olunobuhlobo nokusingqongileyo
Iingcingo eziqinileyo ezisebenzisa umsi omncinci kunye nezingenatyhefu kangako ziyaphuhliswa ukuze kuncitshiswe izinto ezinobungozi kwimsi yokuwelda kunye nokuthobela imithetho yokusingqongileyo.
Ukudibanisa iitekhnoloji ezikrelekrele
Iintambo ezikhethekileyo eziqinileyo ezenzelwe imveliso ezenzekelayo zenzelwe ukusebenzisana nezixhobo eziqinileyo ezizenzekelayo kunye neerobhothi zokuwelda, ukuze kuphuculwe ukusebenza kakuhle kwemveliso kunye nozinzo lomgangatho.
Intshayelelo yeNkampani
I-Tangshan Runxing Machinery Co., Ltd., umenzi ochwephesha okwiTangshan, kwiPhondo laseHebei ogxile kwi-R&D, imveliso kunye nenkonzo yokwakha kwindawo yeemveliso zesinyithi ezinganyangekiyo ezihlala ziqinile, yasekwa ngo-2010.
Iimveliso zethu eziphambili ziquka iipleyiti zokunxiba ze-chromium carbide overlay (CCO), ii-wear liners ezenziwe ngokwezifiso, iipayipi ezinganyangekiyo kunye nezixhobo zepayipi, iintambo zokuwelda ezine-hardfacing flux-core, oomatshini bokuwelda be-hardfacing abazenzekelayo, kunye nenkonzo yobuchwephesha yokulungisa i-roller surface. Silandela ingcamango yeshishini ethi "Ingqibelelo, Umgangatho oPhezulu, Ubuchule kunye noPhuhliso oluZinzileyo" kunye netekhnoloji yethu yokulungisa i-metal surface hardfacing evuthiweyo.
Sinikezela ngezisombululo ezenzelwe wena ezikwaziyo ukumelana nokuguguleka kwimizi-mveliso yesamente, intsimbi, imigodi, izibuko kunye nokwakha izinto ezimdaka kwihlabathi liphela, kwaye sifumene udumo oluhle kwimarike eRashiya naseAsia Ephakathi.
Lonke ishishini lokuthumela ngaphandle ligunyazisiwe kwaye liphathwa yiHebei Yuwan International Trade Co., Ltd. Le nkampani yorhwebo igqibezela yonke imisebenzi yokuthumela ngaphandle kuquka ukucocwa kwempahla, ukuthunyelwa, amaxwebhu kunye nokuqokelelwa kwentlawulo. Umzi-mveliso wethu ugxile kuphuhliso lwemveliso kunye nemveliso ukuqinisekisa umgangatho ozinzileyo wemveliso kunye nokuhanjiswa ngexesha.
I-Runxing Machinery inethemba elinyanisekileyo lokuseka intsebenziswano yexesha elide kunye nokufezekisa inzuzo efanayo nawe!
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