Bututun ƙarfe da aka zana sanyiTsawaitawa da rage yanki

Cold zana kayan aiki ne na kayan aiki, don kayan ƙarfe, yana nufin zane don cimma wani nau'i da wasu kayan aikin injiniya, kayan yana ƙarƙashin yanayin zafin jiki don zane.Cold zana kayayyakin idan aka kwatanta da thermoforming: high girma daidaito da kuma kyau surface gama abũbuwan amfãni.

Zana manyan diamita karfe bututu Elongation (σ), a cikin gwajin ƙwanƙwasa, Tsawon samfurin bayan ɗaukar hoto ya karu a matsayin kashi na ainihin tsawon ma'aunin da ake kira elongation.Tare daσ bayyana a cikin raka'a na%.Ma'anar ita ce: inda: L1 - samfurin da ya karye tsawon ma'auni, mm;L0 - tsawon ma'aunin samfurin asali, mm.

Zana babban diamita sashen bututu shrinkage (ψ) a cikin gwajin ƙwanƙwasa, samfurin mafi girman raguwa a cikin adadin asalin yanki na ɓangaren giciye na yanki a cikin wuyan wuyansa, wanda aka sani da raguwar sashe.Zuwaψ bayyana a cikin raka'a na%.An ƙididdige shi kamar haka: inda: S0 - ainihin samfurin yanki na giciye, mm2;S1 - samfurin da ya karye aƙalla yanki na yanki, mm2.

Samfurin gwajin tensile cikin wuyan aikin nakasar filastik.Sa'an nan kuma elongation na samfurin ya nuna wani nau'i mai mahimmanci tare da sashin wuyansa na samfurin ya ci gaba da fadadawa, har sai duk samfurin ya zama yanayin wuyansa.Rage raguwa a cikin wuyansa ya faru a matakin damuwa na yawan amfanin ƙasa.Lokacin da zafin zane na karfe a maki a cikin zanen da ke ƙasa da zafin jiki na recrystallization na zane, a cikin zanen da ke sama da zafin jiki na recrystallization yana da zafi a zafin jiki fiye da zafin jiki a ƙasa da zafin jiki na recrystallization na zane.Zana waya ta ƙarfe, samar da waya zana hanyar da aka fi sani.Thermal jan waya don dumama kafin shigar da die orifice, refractory karfe ne yafi amfani da zane, kamar tungsten, molybdenum da sauran karfe waya.Lokacin da zafin jiki ya ja waya buƙatar kawai za a jawo shi zuwa cikin ramin mutuwa ta mai dumama zuwa kewayon zafin jiki na musamman, musamman don wayar zinc, waya yana da wahalar nakasa kamar ƙarfe mai sauri, mai ɗaukar ƙarfe zane.