摘要：對汽車噴油器壓塊受力狀態及產品結構進行分析，用粉末冶金成形、燒結新技術，成功研制出各項性能指標均達到要求的汽車噴油器壓塊。結果顯示對于粉末冶金Fe-Ni-Mo-Cu-C合金材料，提高壓坯密度可以提高產品強度但提高有限，延長燒結時間，提高燒結溫度到1250℃，可以使Ni燒結基本達到均勻合金化，經碳氮共滲熱處理后強度有顯著提升。調整Ni和Cu的配比可以控制產品燒結尺寸變化在所要求范圍，但對Fe-4Ni-Cu-0.5Mo-0.5C合金材料，Cu含量不宜超過2.5%。
Abstract： The stress state and product structure of automobile fuel injector pressure block are analyzed. The automobile fuel injector pressure block with various performance indexes meeting the requirements is successfully developed by using the new technology of powder metallurgy forming and sintering. The results show that for powder metallurgy Fe-Ni-Mo-Cu-C alloy material， increasing the compact density can improve the product strength， but the improvement is limited. Prolonging the sintering time and increasing the sintering temperature to 1250℃ can basically make Ni sintering achieve uniform alloying， and the strength is significantly improved after carbonitriding heat treatment. Adjusting the ratio of Ni and Cu can control the change of sintering
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“粉末冶金新技術生產汽車噴油器壓塊” 該技術專利(論文)所有權利歸屬于技術(論文)所有人。僅供學習研究，如用于商業用途，請聯系該技術所有人。
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編輯：中冶有色網
來源：楊傳芳王士平杜敬
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2025年08月05日 ~ 07日 
