Yiza ufunde nge-HSS
Intsimbi ehamba ngesantya esiphezulu (i-HSS) sisixhobo sensimbi enobunzima obuphezulu, ukuxhaphaza okuphezulu kunye nokuxhathisa ubushushu, okwaziwa njenge-Steen yentsimbi okanye intsimbi ebukhali, ibukhali. Ibizwa ngokuba yintsimbi emhlophe.
Isantya esiphezulu sensimbi yintsimbi ye-alloy enomgangatho onzima oqukethe izinto ezifana ne-tungsten, i-molybdenum, i-chromium, dadium kunye ne-cobadium. Inani lilonke lezinto zokwababelana ngezinto ezifikelela malunga ne-10 ukuya kwi-25%. Inokugcina ubunzima obukhulu phantsi kobushushu obuphezulu (malunga ne-500 ℃) kwi-SEPE SPART, i-HRC inokuba ngaphezulu kwe-60. Olu lolona phawu lubalulekileyo lwe-HSS-ubunzima obubomvu. Kunye nesixhobo sekharbon intsimbi ngokucima kunye nokuxinana kweqondo lobushushu, nangona ubushushu begumbi ngaphezulu, kodwa xa iqondo lobushushu liye lehlisa isinyithi, esiphelelwa ngumda we-carbon Izixhobo zokusika intsimbi. Kunye nentsimbi ehamba ngesantya esiphezulu ngenxa yobuqili obubomvu, ukwenza iintsilelo ezinqabileyo ze-carbon yentsimbi.
Izixhobo eziphakamileyo zensimbi ikakhulu zisetyenziselwa ukwenza izixhobo ezinqabileyo zensimbi kunye nefuthe lokunganyangeki, kodwa nokwenza amaqondo obushushu obukhulu kunye nokugxothwa kwezixhobo, ii-drives, oomatshini, oomatshini, ukubonwa ngomatshini.
Yiza ufunde ngentsimbi ye-tungsten
Intsimbi ye-Tungsten (i-carbide) inothotho lwezinto ezibalaseleyo ezinjengobunzima obuphakamileyo, zinxibe amandla aphezulu, njl.
Intsimbi ye-tungsten, ezona zinto ziphambili ze-tungsten kunye ne-cobalt, i-99% yazo zonke izinto kunye ne-1% yazo zonke ezinye izinyithi, kwaye zithathwa njengezinyo leshishini lanamhlanje.
Intsimbi ye-Tungsten yindawo ehlanganisiweyo enesihloko esiqulathe ubuncinci be-carbide yentsimbi. I-tungsten carbide, i-cobalt carbide, i-niobium carbide, i-titanium carbide, kunye ne-tenalm carbide zizinto eziqhelekileyo zentsimbi ye-tungsten. Ubungakanani beenkozo zecandelo le-carbide (okanye isigaba) zihlala kuluhlu lwee-microns ze-0.2-16 microns, kunye neengqolowa ze-carble zidityaniswe kunye usebenzisa i-binder yentsimbi. Iinyibiba ze-Brounds ziintsimbi ze-Iron Phlit, ngokuqhelekileyo ye-cobabalt kunye ne-nickel. Yiyo ke loo nto kukho i-tungsten-cobalt alloys, i-tungsten-nickel-nickel
Ukuqunjelwa kwe-tungsten ukwenziwa kukucinezela umgubo ungene kwi-billet, emva koko kwiziko lokutya ukusitshisa kubushushu obuthile (ubushushu obuthile) kwaye uyigcine kangangesixhobo sentsimbi ye-tungsten kunye nepropathi efunekayo.
I-①tungsten kunye ne-cobalt ye-calbide
Elona candelo liphambili yi-tungsten carbide (WC) kunye ne-binder cobalt (CO). Ibakala lidityaniswe "yg" ("i-hard, cobalt" kwi-hanyipin) kunye nepesenti yomxholo ophakathi we-cobalt. Umzekelo, yg8, okuthetha ukuba i-avareji ye-WCO = 8% kwaye ezinye ze-tungsten carbide ye-carbide ye-carbide.
I-②tungsten, i-titanium kunye ne-cobalt ye-carbide
Izinto eziphambili ze-tungsten carbide, i-titanium ye-titanium ye-titanium (iTic) kunye neCobabat. Ibakala lidityaniswe "yt" ("i-hard, titanium" kwi-hanyipin) kunye nomxholo ophakathi we-titanium carbide. Umzekelo, yt15, kuthetha i-TIC ephakathi = I-15%, ukuhlakulela i-tungsten carbide kunye ne-cobalt yomxholo we-tungsten ye-tungste ye-tungste.
I-③tungsten-titanium-tantalum (i-Niobium) ye-carbide
Izinto eziphambili ze-tungsten carbide, i-titanium carbide, i-tenalm carbide (okanye i-niobium ye-carbide) kunye neCobabat. Olu hlobo lwe-carbide lubizwa ngokuba yi-carbide ngokubanzi okanye i-carbide yendalo iphela. Ibanga liquka "yw" ("ubunzima" kunye "nezigidi" kwi-hanyipin) kunye nenani elilandelelana, njenge-YW1.
Intsimbi ye-Tungsten inothotho lwezinto ezibalaseleyo ezinjengobunzima obuphakamileyo, zinxibe amandla aphezulu, ukuxhathisa ubushushu, kwaye kusenokuba nobunzima obuphakathi kwi-1000 ℃. I-carbide ye-caride isetyenziswa ngokubanzi njengezixhobo, ezinjengokujika izixhobo, izixhobo zokulinganisa, izixhobo, izixhobo ezinesithsaba, njl njl.
IXESHA LOKUQALA: NgoFebwe-21 ukuya kwi-2023
