I-valve castings ithanda ukuvelisa iziphene

1. I-stomata

Lo ngumgodi omncinci owenziwe yigesi ukuba inkqubo yokuqinisa isinyithi ayiphumi ngaphakathi kwintsimbi. Udonga lwayo lwangaphakathi luhamba kakuhle kwaye luqulethe i-gesi, ene-reflection ephezulu kwi-wave ye-ultrasonic, kodwa ngenxa yokuba i-spherical okanye i-ellipsoid ngokusisiseko, i-point defect, echaphazela ukubonakaliswa kwayo kwe-amplitude. Umngxuma womoya kwi-ingot uhlanjululwe kwindawo yesiphene emva kokuqulunqa okanye ukuqengqeleka, okunenzuzo ukufunyanwa ngokufunyanwa kwe-ultrasonic.

2. I-Clip slag

I-slag kwinkqubo yokunyibilikisa okanye i-refractory kumzimba wesithando somlilo ikhupha kwintsimbi engamanzi, kwaye ibandakanyeka kwi-casting okanye i-ingot yensimbi xa igalela, yenza i-clamp clamp defect. I-Slag idla ngokungabikho yodwa, ihlala ixinene okanye isasazeke kubunzulu obahlukeneyo, iyafana neziphene zevolumu kodwa ihlala inomgca othile.

3. Ukwenza iintanda

Ukuqhekeka kokujula kubangelwa ikakhulu kuxinzelelo lokucutheka kokuqiniswa kwesinyithi okupholisa kudlula amandla okugqibela ezinto eziphathekayo, kunxulumene nobume boyilo lokuphosa kunye nenkqubo yokuphosa, kwaye inxulumene novakalelo lokuqhekeka kobunye ukungcola. izinto zetsimbi (ezifana nomxholo ophezulu wesulfure, i-brittleness ebandayo, umxholo ophezulu we-phosphorus, njl.). Kwi-spindle, kuya kubakho iintanda kwi-crystal shaft, kwaye kwi-billet forging elandelayo, iya kuhlala kwi-forging njenge-crack yangaphakathi ye-forging.

4. Guqula ulusu

Oku kukwenziwa kwentsimbi ukusuka kwi-ladle ukuya kwi-ingot yokuphosa ingot, ngenxa yokuphazamiseka okuthululwayo, unqumamo, ugalelwe kumphezulu wetsimbi elulwelo emoyeni opholisa ngokukhawuleza ifilimu ye-oxide, ukugalela okutsha kwisinyithi solwelo kuya kuqhekeza emzimbeni we-ingot kwaye kwenze i-hierarchical. (indawo) iziphene, kwi-ingot billet elandelayo yokubunjwa ayibumbi.

5. I-Anisotropy

Xa i-casting okanye i-ingot ipholile kwaye iqiniswe, isantya sokupholisa ukusuka kumphezulu ukuya embindini siyahluka, ngoko ke i-crystallization izicubu ezahlukeneyo ziya kwenziwa, ezibonisa i-anisotropy yeempawu zoomatshini, kwaye ikhokelela kwi-anisotropy yeempawu ze-acoustic, oko kukuthi. , kukho isantya sesandi esahlukileyo kunye nokunciphisa isandi ukusuka embindini ukuya phezulu. Ubukho bale anisotropy bunokuba nefuthe elibi kubukhulu kunye nesikhundla seziphene ezivavanyiweyo ngexesha lokufunyanwa kwe-ultrasonic.

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