chidziwitso

Gulu la 5 titaniyamu alloy, yomwe imadziwikanso kuti Ti-6Al-4V, imadziwika chifukwa cha mphamvu zake zolemetsa, kukana dzimbiri, komanso kuyanjana kwachilengedwe. Zikafika pakukana kukankha, machubu amtundu wa 5 titanium alloy nthawi zambiri amawonetsa ntchito yabwino chifukwa cha kuuma kwawo komanso mapangidwe achitetezo cha oxide pamwamba pake. Komabe, chiwopsezo cha kukanda chimasiyana kutengera zinthu monga chithandizo chapamtunda, chilengedwe, komanso momwe zinthu zimalumikizirana nazo. Pamene Grade 5 titaniyamu alloy machubu samva kukandalika poyerekeza ndi zitsulo zina zambiri, sizimatetezedwa ku kuwonongeka kwapamtunda nthawi zina.

Kodi machubu a aloyi a titaniyamu a Gulu 5 ndi chiyani?

Machubu amtundu wa 5 titanium alloy ali ndi kuphatikiza kwapadera komwe kumawapangitsa kukhala ofunikira kwambiri pakugwiritsa ntchito m'mafakitale osiyanasiyana. Aloyiyi, yopangidwa ndi 90% ya titaniyamu, 6% ya aluminiyamu, ndi 4% ya vanadium, imapereka mphamvu yosakanikirana, yopepuka, ndi kukana dzimbiri.

Chimodzi mwazinthu zodziwika bwino za machubu a giredi 5 titaniyamu alloy ndi chiŵerengero chawo champhamvu ndi kulemera kwake. Ndi mphamvu yolimba yochokera ku 895 mpaka 1000 MPa komanso kachulukidwe ka 4.43 g/cm³, machubuwa amapereka kukhulupirika kwadongosolo kwinaku akuchepetsa kulemera kwazinthu zonse. Izi zimawapangitsa kukhala ofunikira kwambiri pazamlengalenga, zamagalimoto, ndi zam'madzi momwe kuchepetsa kulemera ndikofunikira kuti mafuta azigwira ntchito bwino komanso kuti azigwira ntchito bwino.

Kulimbana ndi dzimbiri ndi chinthu china chodziwika bwino cha Grade 5 titaniyamu alloy machubu. Mapangidwe a oxide wosanjikiza wokhazikika pamtunda amapereka chitetezo chabwino kwambiri kumadera osiyanasiyana owononga, kuphatikizapo madzi amchere, ma asidi, ndi mankhwala a mafakitale. Katunduyu amakulitsa moyo wazinthu ndikuchepetsa zofunikira pakukonza, ndikupanga machubu a Grade 5 titanium alloy kukhala chisankho chachuma pakugwiritsa ntchito kwanthawi yayitali m'malo ovuta.

The biocompatibility ya Gulu 5 titaniyamu aloyi machubu ndi ofunika kudziwa. Kusakhazikika kwa zinthuzo komanso kukana madzi am'thupi kumapangitsa kuti ikhale chisankho choyenera pa ma implants azachipatala, zida zopangira opaleshoni, ndi ntchito zina zamankhwala. Chiwopsezo chochepa cha matupi awo sagwirizana ndi zinthu zabwino kwambiri za osseointegration zimakulitsa kuyenera kwake kugwiritsidwa ntchito m'thupi la munthu.

Machubu amtundu wa 5 titanium alloy amawonetsanso kukana kutopa, kusunga mawonekedwe awo amakina pansi pamikhalidwe yodzaza. Mkhalidwewu ndi wofunikira kwambiri pakugwiritsa ntchito kupsinjika kobwerezabwereza, monga zida za ndege kapena zida zamagalimoto zogwira ntchito kwambiri.

Kutentha kwa machubu a Grade 5 titaniyamu alloy nawonso ndi ofunikira. Ndi malo osungunuka a pafupifupi 1650 ° C ndi kutsika kwa kutentha kwa kutentha, machubuwa amatha kupirira kutentha kwakukulu pamene akupereka kutentha kwa kutentha. Izi zimawapangitsa kukhala oyenera kugwiritsidwa ntchito posinthanitsa kutentha, makina otulutsa mpweya, ndi ntchito zina zotentha kwambiri.

Komanso, Grade 5 titaniyamu alloy machubu kupereka weldability kwambiri ndi machinability, kulola njira zosunthika kupanga ndi mapangidwe zovuta. Zinthuzo zimatha kuwotcherera pogwiritsa ntchito njira zosiyanasiyana, kuphatikiza TIG, MIG, ndi kuwotcherera kwa ma elekitironi, osasokoneza mawotchi ake kapena kukana dzimbiri.

Kodi kuuma kwa giredi 5 titaniyamu aloyi poyerekeza ndi zitsulo zina?

Kulimba kwa giredi 5 titaniyamu alloy ndikofunikira kwambiri pakuzindikira kukana kwake komanso kulimba kwake. Poyerekeza kuuma kwa aloyi ya titaniyamu ya Giredi 5 ndi zitsulo zina, ndikofunikira kuganizira masikelo osiyanasiyana owuma komanso momwe angagwiritsire ntchito chinthu chilichonse.

Pa sikelo ya Rockwell C, aloyi ya titaniyamu ya Giredi 5 nthawi zambiri imawonetsa kuuma kosiyanasiyana kwa 36 mpaka 39 HRC. Izi zimayiyika m'gulu lolimba kwambiri pakati pa zitsulo. Poyerekeza, zitsulo zosapanga dzimbiri 316L, zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale ambiri, zimakhala zolimba za 20-25 HRC. Izi zikuwonetsa kuti giredi 5 titaniyamu aloyi nthawi zambiri imakhala yolimba komanso yosagwira kukanda kuposa magiredi ambiri azitsulo zosapanga dzimbiri.

Komabe, poyerekeza ndi zida zina zachitsulo kapena zowuma zowuma, titaniyamu ya Grade 5 ikhoza kukhala yovuta kwambiri. Mwachitsanzo, chitsulo cholimba cha D2 chimatha kufikira kuuma kwa 58-62 HRC, zomwe zimapangitsa kuti zikhale zovuta kwambiri kuposa aloyi ya titaniyamu ya Gulu 5. Ndikofunikira kudziwa kuti kuuma kopitilira muyeso sikuli kofunikira nthawi zonse, chifukwa kumatha kupangitsa kuti brittleness ndi kuchepetsa kulimba.

Sikelo ya Vickers hardness imapereka lingaliro linanso pa kuuma kwa Grade 5 titanium alloy. Miyezo yofananira ya aloyiyi imachokera ku 349 mpaka 372 HV. Izi zikufanizira bwino ndi ma aluminiyamu ambiri, omwe nthawi zambiri amakhala ndi kuuma kwa Vickers pansi pa 150 HV. Kulimba kwapamwamba kwa aloyi a titaniyamu a Giredi 5 kumathandizira kukana kwake kokanda bwino poyerekeza ndi ma aloyi ambiri a aluminiyamu.

Ndizofunikira kudziwa kuti kuuma kwa kalasi ya 5 titaniyamu aloyi kumatha kutengera kutentha ndi njira zopangira. Kuchiza ndi kukalamba kumatha kukulitsa kuuma ndi mphamvu ya alloy, zomwe zimatha kukulitsa kukana kwake. Komabe, njirazi ziyenera kuyang'aniridwa mosamala kuti zinthu zisamayende bwino.

Ngakhale kuuma ndi chinthu chofunikira kwambiri pakukana kukankha, sikuti ndikungoganizira kokha. Mapangidwe a oxide oxide wosanjikiza pamwamba pa Grade 5 titaniyamu alloy chubu amapereka chotchinga china pa kukanda ndi kuvala. Osayidi wosanjikiza uyu, makamaka wopangidwa ndi titaniyamu woipa, ndi woonda kwambiri (nthawi zambiri ma nanometer ochepa) koma okhazikika komanso osamata pamwamba pazitsulo.

Kuphatikizika kwa kuuma kwachilengedwe ndi kusanjikiza kwa okosijeni kumapereka Grade 5 titaniyamu alloy machubu zabwino zonse zikande kukana. Komabe, ndikofunikira kukumbukira kuti palibe zinthu zomwe sizingavumbulutsidwe, ndipo pakakhala zovuta kwambiri kapena mukamakhudzana ndi zida zolimba, ngakhale aloyi ya titaniyamu ya Giredi 5 imatha kukwapula.

Ndi mankhwala amtundu wanji omwe angapangitse kuti machubu a aloyi a titaniyamu a Giredi 5 asakhale bwino?

Ngakhale machubu a titanium alloy a Giredi 5 amapereka kale kukana kukanda bwino chifukwa cha mawonekedwe ake, chithandizo chamankhwala chosiyanasiyana chimatha kupititsa patsogolo kulimba kwawo komanso kukana kuwonongeka kwapamtunda. Mankhwalawa amatha kukhala opindulitsa makamaka pakugwiritsa ntchito komwe machubu amakumana ndi malo ovuta kapena kukhudzana pafupipafupi ndi makina.

Chimodzi mwazinthu zabwino kwambiri zochizira pamwamba pakuwongolera kukana zikande ndi nitriding. Izi zimaphatikizapo kugawanitsa nayitrogeni pamwamba pa titaniyamu pa kutentha kokwera, komwe kumakhala pakati pa 700 ° C ndi 1100 ° C. Zotsatira za titaniyamu nitride wosanjikiza kwambiri kumawonjezera kuuma kwa pamwamba, nthawi zambiri kufika pamtengo wopitilira 1000 HV. Kuwonjezeka kwakukulu kwa kuuma kumeneku kumatanthawuza kukana kukanda bwino kwambiri komanso magwiridwe antchito. Kuphatikiza apo, wosanjikiza wa nitrided umathandizira kukana kwa dzimbiri kwa zinthuzo, ndikuziteteza ku kuwonongeka kwa chilengedwe.

Chinthu chinanso chodziwika bwino chochiza pamwamba ndicho kupaka utoto wa vapor deposition (PVD). Izi zimaphatikizapo kuyika kansalu kakang'ono kolimba ka ceramic pamwamba pa chubu cha titaniyamu. Zovala zodziwika bwino za PVD zama aloyi a titaniyamu zimaphatikizapo titanium nitride (TiN), titanium aluminium nitride (TiAlN), ndi carbon-ngati diamondi (DLC). Zopaka izi zimatha kukulitsa kuuma kwapamtunda kumtengo wopitilira 2000 HV, kumapereka kukana kwapadera. Zopaka za PVD zimaperekanso mwayi wotha kugwiritsa ntchito mitundu yosiyanasiyana, yomwe ingakhale yopindulitsa pazifukwa zokongoletsa kapena zozindikiritsa.

Anodizing ndi mankhwala ena apamwamba omwe amatha kusintha kukana kwamphamvu Grade 5 titaniyamu alloy machubu. Dongosolo la electrochemicalli limakhuthala ndikulimbitsa kusanjika kwachilengedwe kwa oxide pamwamba pa titaniyamu. Ngakhale kuti sizovuta kwambiri ngati zokhala ndi nitrided kapena PVD-zokutidwa, titaniyamu ya anodized imaperekabe kukana kwabwinoko poyerekeza ndi malo osasinthidwa. Anodizing imaperekanso maubwino owonjezera olimbikira kukana dzimbiri komanso kuthekera kopanga malo achikuda kudzera pakuphatikiza ma ion osiyanasiyana panthawiyi.

Laser surface harding ndi njira yomwe ikubwera yomwe ikuwonetsa lonjezo lothandizira kukana kwa machubu a Grade 5 titanium alloy. Njirayi imagwiritsa ntchito laser yamphamvu kwambiri kuti itenthe mofulumira ndikuziziritsa pamwamba pa zinthuzo, kupanga wosanjikiza wouma popanda kukhudza katundu wambiri wa alloy. Zomwe zimapangidwira zimatha kuwonjezereka kwambiri kuuma komanso kukana kuvala.

Plasma electrolytic oxidation (PEO) ndi chithandizo china chapamwamba chomwe chimatha kukulitsa kukana kwa machubu a Grade 5 titanium alloy. Njirayi imapanga chinsalu cha ceramic-ngati oxide pamwamba pa titaniyamu, chomwe chimatsatira kwambiri ndipo chimatha kufika ku makulidwe a ma micrometer 100. Wosanjikiza wa PEO amapereka kuuma kwabwino, kukana kuvala, komanso chitetezo cha dzimbiri.

Ndikofunikira kudziwa kuti ngakhale mankhwala apamtundawa amatha kusintha kwambiri kukana zikande, amathanso kukhudza zina za machubu a Grade 5 titanium alloy. Mwachitsanzo, mankhwala ena amatha kuchepetsa kutopa pang'ono kapena kusintha kulekerera kwa machubu. Choncho, kusankha chithandizo chapamwamba chiyenera kuganiziridwa mosamala potengera zofunikira zomwe zimagwiritsidwa ntchito komanso zofunikira zonse za gawolo.

Pomaliza, machubu a titanium alloy a Giredi 5 amapereka kukana kwabwino kwachilengedwe chifukwa cha kuuma kwawo komanso kusanjikiza kwa oxide. Komabe, pazinthu zomwe zimafuna kukana kwapadera, chithandizo chamankhwala chosiyanasiyana chingagwiritsidwe ntchito kuti chiwongolerochi chiwonjezeke. Chisankho chamankhwala chimadalira zinthu monga zofunikira zogwiritsira ntchito, kulingalira kwa mtengo, ndi kuchuluka kwa katundu. Posankha mosamala ndi kugwiritsa ntchito mankhwala oyenera pamwamba, ntchito yochititsa chidwi ya Grade 5 titaniyamu alloy machubu zitha kusinthidwa, kukulitsa ntchito zawo pamitundu yambiri yamapulogalamu omwe amafunikira.

Ku SHAANXI CXMET TECHNOLOGY CO., LTD, timanyadira zamitundu yathu yayikulu, yomwe imathandizira zosowa zosiyanasiyana zamakasitomala. Kampani yathu ili ndi luso lapadera lopanga ndi kukonza, kuwonetsetsa kuti zinthu zathu ndi zapamwamba komanso zolondola. Ndife odzipereka pazatsopano ndipo timayesetsa mosalekeza kupanga zinthu zatsopano, kutipangitsa kukhala patsogolo pamakampani athu. Ndi luso lotsogola laukadaulo, timatha kusintha ndikusintha msika womwe ukusintha mwachangu. Kuphatikiza apo, timapereka mayankho osinthika kuti akwaniritse zofunikira zamakasitomala athu. Ngati muli ndi chidwi ndi zinthu zathu kapena mukufuna kudziwa zambiri zazomwe timapereka, chonde musazengereze kutilankhula nafe pa sales@cxmet.com. Gulu lathu limakhala lokonzeka nthawi zonse kukuthandizani.

Zothandizira:

1. ASM International. (2015). ASM Handbook, Voliyumu 2: Katundu ndi Kusankhira: Zosakaniza Zopanda Zingwe ndi Zida Zazifukwa Zapadera.

2. Lutjering, G., & Williams, JC (2007). Titaniyamu (2nd ed.). Springer-Verlag Berlin Heidelberg.

3. Donachie, MJ (2000). Titaniyamu: A Technical Guide (2nd ed.). ASM International.

4. Froes, FH (2015). Titaniyamu: Physical Metallurgy, Processing, and Applications. ASM International.

5. Boyer, R., Welsch, G., & Collings, EW (1994). Materials Properties Handbook: Titanium Alloys. ASM International.

6. Mitsuo, N. (2007). Zimango zimatha biomedical titaniyamu aloyi. Zakuthupi Sayansi ndi Umisiri: A, 243 (1-2), 231-236.

7. Pohrelyuk, I., Fedirko, V., Tkachuk, O., & Proskurnyak, R. (2013). Kukana kwa dzimbiri kwa Ti-6Al-4V aloyi yokhala ndi zokutira za nitride mu njira ya Ringer. Corrosion Science, 66, 392-398.

8. Yetim, AF (2010). Kufufuza kwamavalidwe amafilimu a titanium oxide, opangidwa ndi anodic oxidation, pa titaniyamu yoyera yamalonda m'malo opanda vacuum. Pamwamba ndi Zovala Technology, 205 (6), 1757-1763.

9. Bansal, DG, Eryilmaz, OL, & Blau, PJ (2011). Injiniya yapamwamba kuti ipititse patsogolo kulimba komanso kununkhira kwa Ti-6Al-4V alloy. Valani, 271(9-10), 2006-2015.

10. Yerokhin, AL, Nie, X., Leyland, A., Matthews, A., & Dowey, SJ (1999). Electrolysis ya Plasma pa engineering ya pamwamba. Ukadaulo wa Pamwamba ndi Zovala, 122 (2-3), 73-93.