Babban Kayayyakin Injini na Nickel - tushen Alloys

Lokacin amfani da kayan gami na nickel{0}, dole ne mu fara fahimtar kayan aikinsu don sanin ko sun cika wasu buƙatun masana'antu. Waɗannan kaddarorin injinan sun haɗa da: ƙarfin ƙarfi (TS), ƙarfin yawan amfanin ƙasa (YS), ƙimar elongation, da taurin, da sauransu.

 

Don samun waɗannan bayanan, ana buƙatar gwajin juzu'i. Ana amfani da gwajin ƙwanƙwasa don ƙayyade halin kayan aiki lokacin da aka yi amfani da kayan aiki na axial. Kayan aikin da aka yi amfani da su don gwajin ƙwanƙwasa ana kiransa na'ura mai ɗaukar nauyi na duniya.

 

 

Ƙarfin ɗaure (TS): Matsakaicin danniya da kayan zai iya jurewa kafin watsewa, shine mahimmin ƙimar da ƙarfen ke canzawa daga nakasar filastik iri ɗaya zuwa nakasar filastik ta zahiri, kuma shine mafi girman nauyin ɗaukar ƙarfen a ƙarƙashin yanayin juzu'i. Alamar ita ce Rm (tsohuwar ma'aunin GB/T 228-1987 ta nuna cewa alamar ƙarfin ƙarfi shine σb), kuma sashin shine MPa.

 

Ƙarfin Haɓaka (YS): Ƙimar damuwa mai mahimmanci don abin da zai haifar. Ƙarfin da aka samu shine iyakar abin da ƙarfe ke samarwa lokacin da ya sami al'amuran yawan amfanin ƙasa, wato, damuwa da ke tsayayya da ƙananan nakasar filastik. Don karafa ba tare da bayyanannun abin al'ajabi ba, ƙimar damuwa da ke haifar da nakasar saura 0.2% an ayyana shi azaman iyakar yawan amfanin sa, wanda ake kira iyakar yawan amfanin ƙasa ko ƙarfin yawan amfanin ƙasa. Lokacin da ƙarfin da ya fi wannan iyaka ya yi aiki da shi, ɓangaren zai sami nakasu na dindindin; in kasa da haka, bangaren zai koma yadda yake.

 

Ƙimar haɓakawa: Adadin jimillar nakasar ΔL na samfurin bayan karaya mai ƙarfi zuwa ainihin tsayin ma'auni L: δ=ΔL/L × 100%. Matsakaicin tsayi ko ƙananan haɓaka yana nuna ikon kayan aiki don ɗaukar makamashi yayin aiwatar da aikace-aikacen ƙarfi da ƙarfin lalata filastik na kayan. Mafi girman girman tsayin daka, mafi girman nakasar dindindin wanda abu zai iya jurewa yayin aiwatar da aikace-aikacen karfi, yana nuna mafi kyawun nakasar filastik, wanda ya dace da yanayin aikin injiniya da ke buƙatar ƙarfin ƙarfi; yayin da kayan da ke da ƙananan elongation rate nuna brittleness kuma suna da wuya ga karaya kwatsam.

 

Gwajin taurin: Tauri shine ikon abu don tsayayya da shigar gida akan saman sa. Hanyoyin gwajin taurin gama gari sun haɗa da Brinell hardness (HB), hardness Rockwell (HR), da Vickers hardness (HC). Taurin Brinell ya dace da kayan filastik, taurin Rockwell ya dace da kayan ƙarfe na gabaɗaya, kuma taurin Vickers ya dace da kayan sirara ko ƙananan gwaje-gwajen yanki-. Za'a iya yin kwatancen kwatance a tsakanin su bisa kwarewa da yanayin gwaji.