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中文摘要：
分析大型挤压铝型材淬火热处理的必要性,根据典型大型铝型材冷却速度曲线提出大型挤压铝型材淬火的技术要求。结合传热学,推导出大型铝型材快速淬火时冷却介质量的计算公式,建立大型挤压铝型材淬火热处理的理论。介绍几种常用的铝型材快速冷却方式,分析气水雾化联合淬火的技术特点。根据所建立的大型挤压铝型材淬火热处理理论提出大型铝型材气水雾化联合淬火的技术路线。研制出新型高效的气水雾化联合淬火装置,采用所研制的气水雾化联合淬火装置进行试验。试验表明：所建立的大型挤压铝型材淬火热处理理论正确,所提出的技术路线可行。对研制的大型气水雾化联合淬火装置进行推广,能够提高大型挤压铝型材的质量。
英文摘要：
The necessity of cooling quickly large-size aluminum profiles extruded is analyzed. Based on the typical large-size aluminium profiles cooling velocity curve, the technical requirements for the quench process of large size profiled aluminum profiles is put forward. On base of thermal conduction theory, equations to calculate the quantity of cooling medium for large-size aluminium profiles quench are gained. And the corresponding foundation for fast cooling is established.Several fast cooling methods in common use are introduced. The technical characteristics of air-water combined quench are analyzed, On the foundation of large-size aluminium profiles quench theoretic, the technical process route for large-size aluminium profiles air-water combined quench is also put forward. Further the new and effective air-water combined quench equipment is developed. The experiment is carried out on the new quench. Experiment shows that the theoretic foundation for large-size aluminium profiles fast cooling is correct and the technical process route is reliable. The new quench equipments are used in several large-size aluminium extrusion line, which makes it to greatly improve the quality of the large size aluminum profiles.
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