Dalilai da Ingantacciyar Kwaswar Kogon Ciki na Bayanan Bayanan Rago.

1 Bayanin abubuwan al'ajabi

Lokacin fitar da bayanan kogo, kai koyaushe ana zazzage shi, kuma ƙarancin ƙarancin ya kusan 100%. Siffar lahani ta al'ada na bayanin martaba shine kamar haka:

2 Binciken farko

2.1 Yin la'akari daga wurin da lahani yake da kuma siffar aibi, shi ne delamination da bawo.

2.2 Dalili: Saboda fatar sandar simintin da ta gabata ta kasance tana birgima a cikin ramin ƙura, rashin daidaituwa, bawo, da ruɓaɓɓen abu sun bayyana a kan extrusion na sandar simintin na gaba.

3 Ganewa da bincike

Na'urar microscope na lantarki na ƙananan haɓakawa, haɓakawa mai girma da lahani na sassan simintin an gudanar da su bi da bi.

3.1 Simintin gyare-gyare ƙananan haɓaka

11 inch 6060 simintin simintin gyare-gyare ƙananan girman girman girman saman 6.08mm

3.2 Fitar da sandar girma

Kusa da epidermis Segregation Layer raba layin wuri

Simintin gyaran kafa 1/2 matsayi

3.3 Electron microscope duban lahani

Ƙara girman wurin lahani sau 200

Zane-zanen makamashi

EDS bangaren bincike

4 Takaitaccen bayanin sakamakon bincike

4.1 Layer 6mm mai kauri mai kauri yana bayyana akan ƙaramin girman girman sandar simintin. Rarraba wani eutectic ne mai ƙarancin narkewa, wanda ya haifar da rashin sanyi na simintin gyaran kafa. Siffar macroscopic fari ne mai haske, kuma iyaka tare da matrix a bayyane yake;

4.2 Babban girma yana nuna cewa akwai pores a gefen sandar simintin gyare-gyare, yana nuna cewa ƙarfin sanyaya ya yi yawa kuma ruwan aluminum bai isa ba. A mahaɗin da ke tsakanin Layer Layer da matrix, kashi na biyu yana da wuyar gaske kuma yana katsewa, wanda shine yanki mara kyau. Diamita na sandar simintin 1/2 Kasancewar dendrites a wurin da rashin daidaituwa na rarraba abubuwan da aka gyara yana kara nuna rarrabuwa na farfajiyar saman da yanayin yanayin girma na dendrites;

4.3 Hoton lahani na ɓangarori na 200x na hangen nesa na na'urar microscope na lantarki ya nuna cewa saman yana da ƙaƙƙarfan inda fata ke barewa, kuma saman yana da santsi inda fata ba ta bashe ba. Bayan nazarin abun da ke ciki na EDS, maki 1, 2, 3, da 6 sune wuraren lahani, kuma abun da ke ciki ya ƙunshi C1, K, da Na abubuwa ne guda uku, wanda ke nuna cewa akwai wani sashi na wakili mai tsaftacewa a cikin abun da ke ciki;

4.4 Abubuwan C da 0 a cikin abubuwan da ke cikin maki 1, 2, da 6 sun fi girma, kuma abubuwan Mg, Si, Cu, da Fe a aya na 2 sun fi waɗanda suke a maki 1 da 6, suna nuna cewa abubuwan da ke tattare da su. wurin lahani bai yi daidai ba kuma akwai ƙazanta na saman da ke ciki;

4.5 An gudanar da bincike akan abubuwan 2 da 3 kuma an gano cewa abubuwan da aka gyara sun ƙunshi Ca element, yana nuna cewa talcum foda na iya kasancewa a cikin saman sandar aluminum yayin aikin simintin.

5 Takaitawa

Bayan binciken da ke sama, ana iya ganin cewa saboda kasancewar rarrabuwa, wakili mai tacewa, talcum foda da abubuwan da aka haɗa a saman sandar aluminum, abun da ke ciki bai dace ba, kuma ana birgima fata a cikin rami na mold yayin extrusion. haifar da lahani na bawo a kai. Ta hanyar rage zafin sandar simintin gyare-gyare da kauri da sauran kauri, za a iya rage matsalolin bawo da murkushewa ko ma a warware su; ma'auni mafi inganci shine ƙara injin peeling don bawo da extrusion.

May Jiang ta gyara daga MAT Aluminum