On-line Preparation Technology for Semi-solid Slurry of Aluminum Alloy Based on LSPSF （Low Shearing Pouring Semi-solid Forming） Method

Liu Xubo1; Yang Xiangjie1; Guo Hongmin2

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On-line Preparation Technology for Semi-solid Slurry of Aluminum Alloy Based on LSPSF （Low Shearing Pouring Semi-solid Forming） Method
Issue 10, Pages: 762-765(2008)
Published： 2008 ，
DOI：

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[1]刘旭波,杨湘杰,郭洪民.铝合金半固态浆料LSPSF法在线制备[J].特种铸造及有色合金,2008(10):762-765+734-735.

Liu Xubo1, Yang Xiangjie1, Guo Hongmin2. On-line Preparation Technology for Semi-solid Slurry of Aluminum Alloy Based on LSPSF （Low Shearing Pouring Semi-solid Forming） Method. [J]. Special Casting & Nonferrous Alloys (10):762-765(2008)
[1]刘旭波,杨湘杰,郭洪民.铝合金半固态浆料LSPSF法在线制备[J].特种铸造及有色合金,2008(10):762-765+734-735. DOI：

Liu Xubo1, Yang Xiangjie1, Guo Hongmin2. On-line Preparation Technology for Semi-solid Slurry of Aluminum Alloy Based on LSPSF （Low Shearing Pouring Semi-solid Forming） Method. [J]. Special Casting & Nonferrous Alloys (10):762-765(2008) DOI：

摘要

利用自主开发的剪切低温浇注式半固态浆料制备（LSPSF）工艺装置

研究了不同浇注温度和输送管转速对A356、A380铝合金半固态浆料组织的影响。结果表明

在输送管倾角为20°、浆料蓄积器温度为500℃、转管转速为90～150r/min、浇注温度在液相线以上（30±10）℃时

可以获得良好的近球形半固态浆料微观组织。经过实际试生产

证明LSPSF工艺效率高、性能稳定

可以实现铝合金半固态浆料的在线制备。

Abstract

Effects of different pouring temperature and rotating velocity of rotating duct on microstructure of A356 aluminum alloy semi-solid slurry were observed based on the self-developed LSPSF technology. It is concluded that the desirable semi-solid slurry with spheroidized structure can be prepared successfully with rotating duct tilting angle of 20°at rotating velocity of 90

50 r/min and slurry reserving container temperature of about 500 ℃ as well as pouring temperature more than （30±10） ℃ above liquidus temperature. The practical production verifies that LSPSF method has the advantages of high processing efficiency and stable performance

which can effectively realize the on-line preparation of A356 aluminum alloy semi-solid slurry.