Stellite 21 vs Stellite 6: Zaɓin Ƙungiyoyin Alloy na Cobalt don Wear da Lalata 

Stellate 6 shine abin da injiniyoyi ke kaiwa na farko lokacin da a cobalt tushen gami part yana buƙatar kariya ta sutura. An ƙididdige shi da kyau, akwai ko'ina, kuma yana aiki da kyau a faɗin faɗuwar yanayin ɓarna da mannewa. Amma "default" ba ɗaya ba ne da "mafi kyau." Lokacin da wani sashi ya gaza daga abrasion amma daga hawan keke mai zafi, galling karfe-zuwa-karfe, ko lalata-taimaka lalacewa, stelite kashi 21 zai iya zama mafi kyawun zaɓi. An rubuta wannan kwatancen don injiniyoyin ƙira da masu saye-sashe waɗanda ke buƙatar fahimta me yasa Alloys biyu sun bambanta, ina kowane nasa ne, kuma abin da za a tabbatar kafin yin wani takamaiman bayani.

Me yasa Stellite 6 shine Tsoho-kuma Lokacin da Stelite 21 shine Mafi kyawun zaɓi

Stellite 6 yana samun matsayinsa na asali ta hanyar haɗin babban abun ciki na carbon da ƙarfafa tushen tushen tungsten. Sakamakon yana da wuya, gami da juriya mai jurewa wanda ke sarrafa barbashi masu ɓarna, yashwa, da lalata injina gabaɗaya a cikin kewayon zafin jiki mai faɗi. Hannun masana'anta da masu taurin kai sun balaga, kuma masaniyar masu samar da kayayyaki ya yi yawa. Don kujerun bawul da yawa, hannayen famfo, da abubuwan sawa gabaɗaya, Stelite 6 shine madaidaicin farawa.

Alamar da za a yi la'akari da Stellate 21 tana bayyana lokacin da babban tsarin gazawar ya canza. Idan sashin yana fashe a ƙarƙashin sake zagayowar thermal, idan abubuwan rufewa suna kamawa yayin zamewar ƙarfe-zuwa-karfe, ko kuma idan yanayin sabis ɗin ya haɗu da lalacewa tare da matsakaicin lalata, mafi girman taurin Stelite 6 bazai magance ainihin matsalar ba. Stellite 21 yana cinikin taurin-ɗaki don tauri, juriya na zafin zafi, da ingantattun halayen lalata a wasu kafofin watsa labarai. Tambayar ba shine abin da alloy ya fi "mafi kyau ba," amma wane alloy yayi daidai da yadda sashin zai gaza.

Yadda Bambance-bambancen Rubuce-rubuce Ke Korar Ayyukan

Tazarar aikin da ke tsakanin waɗannan allunan cobalt biyu ya zo ƙasa zuwa zaɓi biyu na gangan.

Tazarar Abun Carbon: Hardness vs Ductility

Stelite 6 yana ɗaukar kusan 0.9-1.4% carbon, yayin da Stelite 21 yana ɗaukar kusan 0.20-0.35%. Wannan bambance-bambancen yana sarrafa yawan nau'ikan carbide mai ƙarfi a cikin ƙananan ƙwayoyin cuta. Mafi girman carbon a cikin Stellite 6 yana nufin girma mafi girma na chromium-arzikin carbides, wanda ke fassara kai tsaye zuwa mafi girman taurin da mafi kyawun juriya ga lalacewa. Ƙananan carbon a cikin Stellite 21 yana barin ƙarin matrix na cobalt mai ƙarfi mai ƙarfi wanda aka fallasa, wanda ke rage taurin amma yana kiyaye ductility da ikon ɗaukar yanayin zafi ba tare da tsagewa ba.

Ƙimar taurin da aka ruwaito don Stelite 21 yawanci suna faɗuwa a cikin kewayon 27-40 HRC, tare da ƙima mafi girma ta hanyar ƙarfafa aiki (har zuwa kusan 48 HRC). Stelite 6, ta kwatanta, ana yawan ambatonsa a 40-45 HRC a cikin yanayin da aka ajiye. Waɗannan alkalumman nuni ne maimakon tabbatacce: simintin simintin gyare-gyare ko aiwatar da sashi na Stellate 21 na iya samun kaddarori daban-daban fiye da rufin walda, kuma ainihin bayanan gwaji na mai kaya yakamata ya jagoranci ƙayyadaddun bayanai.

Tungsten vs Molybdenum: Mahimmancin Ƙarfafa Ƙarfafa Magani

Stelite 6 yana amfani da tungsten don ƙarfafa ƙarfi mai ƙarfi, yayin da Stellite 21 ya maye gurbin molybdenum. Musanya ba sauƙaƙa ɗaya-da-daya bane. Molybdenum yana da kusan rabin nauyin atomic na tungsten, don haka a kaso ɗaya na nauyi yana ba da gudummawar kusan ninki biyu na atom ɗin zuwa matrix. Wannan bambance-bambancen matakin atomic yana rinjayar yadda gawa ke aiki a yanayin zafi mai tsayi.

Mafi mahimmanci don aikin lalata, ana gane molybdenum gabaɗaya a matsayin mai fa'ida wajen rage mahalli. Wani binciken da aka yi amfani da Laser wanda ya kwatanta allunan biyu ya gano cewa Stellite 21 yadudduka sun nuna mafi kyawun juriya na lalata fiye da yadudduka na Stellite 6 a ƙarƙashin yanayin gwajin da aka yi aiki. Ƙarin molybdenum kuma yana rage yanayin hazo mai tsaka-tsakin tsaka-tsaki a babban zafin jiki, wanda ke goyan bayan daidaitawar yanayin zafi a cikin sabis na keke. Waɗannan fa'idodi ne masu ma'ana, amma zaɓi ne: Stellite 21 ba a duniya ya fi juriya fiye da Stellite 6, kuma takamaiman matsakaici, yanayin zafi, da yanayin iska dole ne a kimanta. A cikin yashwar cavitation, alal misali, Stellite 6 an bayar da rahoton ya zarce Stelite 21 a cikin kwatankwacin karatun weld.

Kwatanta Ayyuka: Tauri, Tauri, Gajiya mai zafi, da Galling

Teburin da ke ƙasa yana taƙaita bambance-bambancen aiki mai amfani. Darajoji maki ne masu nuni, ba takamaiman takamaiman bayani ba. Sharuɗɗan karɓa na ƙarshe yakamata su dogara ne akan auna bayanan mai siyarwa don takamaiman nau'in samfur da hanyar masana'anta.

Nazarin kan Laser-sanda yadudduka An gano cewa Stellite 6 ya ɗan ɗanɗana kusa da saman saman, yayin da Stellite 21 ya nuna juriya mafi girma na zamewa saboda ƙarancin juzu'i - maƙasudi mai ban sha'awa ga tsammanin cewa taurin mafi girma koyaushe yana nufin mafi kyawun aiki. Abin da za a ɗauka shi ne cewa sawa yana da mahimmanci fiye da lamba ɗaya.

Taswirar aikace-aikacen: Daidaita Alloy zuwa Yanayin gazawa

Inda Stellite 6 Ya dace: Kujerun Bawul, Rigar Hannun Rinjaye, Rigar Abrasive

Stellite 6 shine zaɓin da ya dace lokacin da yanayin ɓarna na farko na ɓangaren ya kasance mai lalacewa ko lalacewa daga ɓarna mai wuya, slurry, ko ruwa mai ƙarfi. Kujerun bawul da kujerun ƙofa, fayafai na globe valve, duba bawul flappers, kuma kayan aikin famfo fallasa su abrasive kafofin watsa labarai an kafa aikace-aikace. Babban abun ciki na carbide yana ba da ƙaƙƙarfan shamaki don kawar da kayan aikin injiniya.

Stellite 6 kuma shine mafi aminci tsoho lokacin da hanyar masana'anta ta ƙunshi walda ko taurin fuska a kan ƙaramin ƙarfe kuma mai siyarwa yana da gogewa mai yawa game da tsarin. Halayen walda na gami suna da siffa sosai, kuma ana fahimtar hanyoyin sarrafa dilution.

Gargaɗi ɗaya: idan sabis ɗin abrasive shima ya ƙunshi matsakaici mai lalata, Stellite 6 na iya zama mafi kyawun sa. A cikin wannan yanayin yanayin lalata-lalata, Stellite 21 ya nuna kyakkyawan aiki a cikin kimantawar dakin gwaje-gwaje.

Inda Stellite 21 Ya dace: Kekuna na thermal, Sashe na bakin ciki, Abubuwan Turbine na Gas

Amfanin Stelite 21 yana fitowa a cikin yanayi uku. Na farko, hawan keke na thermal: ƙananan abun ciki na carbon da ƙari na molybdenum yana rage ƙarfin tuƙi don fashe ƙarƙashin maimaita dumama da sanyaya. An yi amfani da Stellite 21 a cikin aikace-aikacen aiki mai zafi kuma azaman madaidaicin buffer inda dole ne a sarrafa rashin daidaituwar haɓakar zafin jiki tsakanin ma'aunin ƙarfe da mai tauri. Na biyu, sassan bakin ciki-bangaye ko rikitattun sassan geometric suna amfana daga mafi girman ƙarfi, wanda ke rage haɗarin fashe yayin aiki ko sabis. Na uku, hatimi mai zamiya da ƙarfe-zuwa-karfe da musaya masu yuwuwa na iya yin aiki mafi kyau tare da Stellite 21, kodayake wannan ya dogara da takamaiman kayan haɗin gwiwa da matsa lamba.

Wani binciken shari'ar da aka buga ya kwatanta gyaran gyare-gyaren laser na manyan injin turbine ta amfani da Stellite 21 foda, tare da gyare-gyaren gyare-gyaren da ke nuna ƙarar ƙarfin ƙarfi da haɓakawa idan aka kwatanta da kayan ƙira na al'ada. Wannan yana misalta rawar gami wajen maido da abubuwan da ke da ƙima inda gajiyar zafin jiki da amincin tsarin ke da mahimmanci.

Iyaka ɗaya ya cancanci a ba da fifiko: Stellite 21 ƙananan ƙaramar carbide yana nufin yana ba da iyakataccen juriya ga yashwar barbashi. Ƙarƙashin yanayi mai tsanani wanda ya haɗa da barbashi masu kaifi cikin sauri, Stellite 6 ya kasance mafi dacewa zaɓi.

Tambayoyi biyar don Tabbatarwa Kafin Kayyade Sashe na 21 Stelite

Lokacin da kuka yanke shawarar cewa a stelite kashi 21 shine hanya madaidaiciya, mataki na gaba shine tabbatar da cewa mai siyarwa zai iya isar da kaddarorin da kuke buƙata. Ƙididdigar allo kawai bai isa ba, saboda kayan aikin injiniya na Stelite 21 sun dogara sosai akan hanyar masana'antu da kuma maganin zafi.

1. Menene hanyar masana'anta?
Jifa, yi, ko taurin fuska? Kowannensu yana samar da nau'in halittar carbide daban-daban, tauri, da tauri. Bangaren simintin gyare-gyare da rufin Laser mai rufi na gawa mara kyau iri ɗaya ba sa canzawa. Tambayi mai kaya ya bayyana hanyar a sarari kuma ya ba da wakilin bayanai na waccan hanyar.

2. Za ku iya ba da rarraba taurin a cikin ɓangaren?
Karatun taurin guda ɗaya akan takardar shaidar gwaji baya tabbatar da abin da ya gama. Nemi bayanan taurin maki mai yawa, musamman don sassan da ke da kauri daban-daban ko martanin maganin zafi.

3. Menene yanayin maganin zafi?
Stellite 21 na iya yin aiki da ƙarfi yayin injina da lalacewa. Halin da aka kawo yana da mahimmanci. Idan an yi gyaran fuska ko damuwa, yakamata a sami bayanan. Idan an yi amfani da ɓangaren a cikin yanayin aiki mai wuyar gaske, girman da daidaituwar ƙarfin aiki ya kamata a rubuta.

4. Shin akwai shaidar da ta dace da yanayin gazawar da aka yi niyya?
Idan dalilin zaɓin Stellite 21 shine juriya na gajiya mai zafi ko juriya, tambaya ko mai siyarwa yana da gogewa ko gwajin bayanan da ke magance wannan takamaiman hanyar. Tabbatattun bayanan alloy na gabaɗaya wuri ne na farawa, ba madadin takamaiman shaida na aikace-aikace ba.

5. Wadanne takardu ne ke tare da sashin?
Takaddun shaida na kayan aiki, ganowa zuwa zafi ko yawa, da bayanan dubawa yakamata a ƙayyade. Don sabis mai mahimmanci, takaddun shaida ya kamata ya gano gami ta lambar UNS (R30021 don Stellate 21) da ƙa'idar da ta dace.

FAQ

Shin Stelite 21 ya fi Stellite 6 jure lalata?

A cikin wasu kafofin watsa labaru, musamman rage ko hadaddun yanayin acidic, Stelite 21 ya nuna mafi kyawun juriya na lalata a cikin nazarin kwatancen. Duk da haka, bai fi kowa ba. Matsakaicin matsakaici, zafin jiki, da yanayin iska suna ƙayyade aiki, kuma kimanta lalata don ainihin sabis yana da kyau. Stelite 6, alal misali, ya nuna mafi kyawun juriya ga yashwar cavitation a cikin nazarin kwatanta weld.

Zan iya musanya Stelite 6 don Stelite 21 ba tare da canza ƙira ba?

Sai kawai idan tsarin gazawar bai dogara da kaddarorin da suka bambanta su ba. Idan ainihin dalilin zaɓin Stellite 21 shine juriya na gajiya mai zafi ko juriya, maye gurbin Stellite 6 bazai magance matsalar ba kuma yana iya ƙara muni. Ya kamata a sake duba zaɓin akan ainihin yanayin rashin nasara.

Shin Stelite 21 yana da wahala don aikace-aikacen sawa?

Taurin kawai shine ma'aunin zaɓi mara kyau. Stellite 21 ya fi Stellite 6 laushi a cikin yanayin da aka ajiye amma yana iya yin aiki da ƙarfi a cikin sabis (har zuwa kusan 48 HRC), kuma aikin sa ya dogara da injin. Don ɓarna mai wuya-barbashi, Stellite 6 an fi son gabaɗaya. Don zamewa lalacewa, galling, ko thermal keken keke, Stelite 21 na iya yin fice duk da ƙananan taurin farko.

Za a iya amfani da allunan biyu ta hanyar hardfacing?

Ee. Stellite 6 shine mafi yawan ma'auni na hardfacing, amma Stellite 21 kuma ana samunsa azaman waya mai walda da foda don rufewa da tafiyar matakai. Siffofin tsari da sarrafa dilution sun bambanta, kuma mai siyarwa yakamata ya sami ingantattun hanyoyin don takamaiman gami da haɗin substrate.

Menene ƙayyadaddun ƙayyadaddun da aka fi watsi da su yayin yin odar sassan Stelite 21?

Hanyar masana'anta da yanayin kula da zafi. Waɗannan abubuwan suna yin tasiri ga kaddarorin ƙarshe fiye da ƙayyadaddun kayan haɗin gwal na Stellite 21, da ƙayyadaddun siyan da ke ba da sunaye kawai ƙimar gami ba a bayyana mahimman masu canji ba.

Nemi Tallafin Zaɓi ko Takaddun Shaida

Idan kuna kimantawa a cobalt alloy part don aikace-aikacen lalacewa ko lalata kuma yana buƙatar sanin ko Stelite 21 ko Stelite 6 shine mafi dacewa, mafi kyawun mataki na gaba shine raba sashin zane da bayanin yanayin rashin nasara da ake tsammani tare da mai siyar da ke aiki tare da duka gami. Ƙayyade zafin sabis, yanayin hawan keke, saman mating, da matsakaici mai lalacewa idan an zartar. Mai kawowa gwaninta da Stellate gami sassa ya kamata su iya yin magana game da cinikin da aka yi a kai a kai tare da samar da takaddun shaida, bayanan taurin, da takaddun hanyar masana'anta don sassan da kuke la'akari.