Simintin bawul yana da sauƙin haifar da lahani

1. Ciwon ciki

Wannan ƙaramin rami ne da iskar gas ta samar wanda tsarin ƙarfafa ƙarfe ba ya fita daga cikin ƙarfen. Bangon ciki yana da santsi kuma yana ɗauke da iskar gas, wanda ke da ƙarfin haske ga raƙuman ultrasonic, amma saboda ainihinsa mai siffar ƙwallo ne ko ellipsoid, lahani ne mai ma'ana, wanda ke shafar girman haskensa. Ramin iska a cikin ingot yana kwance zuwa lahani na yanki bayan ƙirƙira ko birgima, wanda yake da amfani a gano shi ta hanyar amfani da ultrasonic detection.

2. Lakabin yanka

Lalacewar da ke cikin aikin narkewar abinci ko kuma mai hana ruwa shiga jikin tanda yana bazuwa cikin ƙarfen ruwa, kuma yana shiga cikin simintin ƙarfe ko ƙarfe lokacin da ake zubawa, wanda hakan ke haifar da lahani ga maƙallin. Lalacewar yawanci ba ta wanzu shi kaɗai ba, sau da yawa tana cikin yanayi mai yawa ko kuma tana warwatse a zurfin daban-daban, tana kama da lahani na girma amma sau da yawa tana da takamaiman layi.

3. Fashewar siminti

Fashewar da ke cikin simintin galibi tana faruwa ne sakamakon matsin lamba na ƙanƙantar da ƙarfen da ke sanyaya ya wuce ƙarfin kayan, yana da alaƙa da siffar ƙirar simintin da tsarin simintin, kuma yana da alaƙa da raunin tsagewar wasu ƙazanta a cikin kayan ƙarfe (kamar yawan sinadarin sulfur, sanyin karyewa, yawan sinadarin phosphorus, da sauransu). A cikin maƙallin, za a kuma sami tsagewa a cikin lu'ulu'u na shaft, kuma a cikin ƙirƙirar billet na gaba, zai kasance a cikin ƙirƙirar azaman tsagewar ciki na ƙirƙirar.

4. Juya fata

Wannan aikin ƙarfe ne daga ladle zuwa ingot simintin ingot, saboda katsewar zuba, dakatarwa, zuba a saman ƙarfe mai ruwa a cikin iska mai saurin sanyaya sigar oxide, sabon zubawa a cikin ƙarfe mai ruwa zai fashe cikin jikin ingot kuma ya samar da lahani na matsayi (yanki), a cikin ingot billet na gaba ba a ƙirƙira shi ba.

5. Anisotropy

Lokacin da aka sanyaya simintin ko ingot kuma aka ƙarfafa shi, saurin sanyaya daga saman zuwa tsakiya ya bambanta, don haka za a samar da kyallen lu'ulu'u daban-daban, wanda ke nuna anisotropy na halayen injiniya, kuma yana haifar da anisotropy na halayen acoustic, wato, akwai bambancin saurin sauti da raguwar sauti daga tsakiya zuwa saman. Kasancewar wannan anisotropy na iya yin mummunan tasiri akan girman da matsayin lahani da aka tantance yayin gano ultrasonic.

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