高性能6063合金电机壳型材生产工艺研究

针对水冷电机壳型材的高性能要求,开展了合金成分配比、在线淬火试验,获得了合理的工艺参数,最终制备出满足客户要求的6063合金水冷电机壳型材。试验结果表明：提高Mg2Si含量,Si稍微过剩,采用高温低速的挤压工艺,在线风冷或风雾冷却的方式,可保证水冷电机壳型材的力学性能满足要求。考虑到工业生产中,气温的变化对淬火效果的影响,夏季建议采用风雾淬火方式。     

主要合金元素对6063铝型材表面质量的影响及控制

6063铝合金作为一种典型的挤压合金,其型材成品被广泛应用于各个领域。介绍了6063铝合金中主要合金元素对型材表面质量产生的影响,如划伤、腐蚀、着色不正等缺陷。针对如何控制6063铝合金中主要合金元素含量问题提出了相应解决方案,为保障6063铝型材表面质量提供理论参考。     

6063铝棒质量提高的措施探讨

6063合金棒属Al—Mg—Si系合金,本文通过介绍Al—Mg—Si系合金的基本特点、合金元素以及熔炼过程中工艺控制,并对其进行探讨分析,提出了6063铝合金棒质量提高的措施。     

6063铝合金生产工艺过程温度控制的探讨

6063铝合金是铝-镁-硅体系中的一种中等强度热处理强化合金,Mg和Si是6063铝合金的主要合金元素。对6063铝合金的生产进行了探索和实践,探讨了6063铝合金生产过程中温度控制的最佳工艺参数。     

稀土对Al-Mg-Si合金氧化着色型材质量的影响

研究了稀土对6063合金(Al-Mg-Si合金)氧化着色型材氧化膜的光泽度、硬度、耐蚀性及膜层组织结构的影响。试验结果表明,加入适量稀土的6063型材氧化着色后,氧化膜的厚度、光泽度、硬度、耐蚀性都有明显增加。合金铸态组织细化且型材力学性能提高。     

汽车轻量化用宽幅薄壁多腔型材挤压工艺研究

通过对模具结构的优化和挤压工艺的调整,解决了6063-T6合金状态宽幅薄壁多腔和大宽厚比型材成型难度高的问题.实验发现,模具三级沉桥设计对断面复杂型材的可成型性具有促进作用;同时调整6063合金成分中Si、Mg元素配比,将铸锭温度控制在470℃～500℃,制品速度设定在4.0m/min～4.5m/min,采用空冷淬火的...     

控制6063合金挤压产品机械性能的有效途径

本文阐述化学成分与热处理工艺对6063合金挤压产品机械性能的影响．提出了可有效控制6063合金挤压产品机械性能的化学成分范围和热处理工艺参数。     

试述Fe在Al-Mg-Si系铝合金中的行为

一、序言 Al-Mg-Si系铝合金中主要是6061和6063合金,用途最广的是6063铝合金。众所周知,6063铝合金是中等强度合金,且易于加工成型,广泛用于建筑装饰行业。其生产过程包括熔炼、铸造、挤压和阳极氧化着色,合金中Fe成为附属组元是不可避免的。研究Fe在Al-Mg-Si系铝合金生产过程中的行为是很有必要的,这样有益于改善该系合金加工性能和型材产品质量。二、Fe的来源 Al-Mg-Si合金中的Mg、Si含量是该合     

6063铝合金挤压型材的快速时效工艺研究

研究了6063铝合金挤压型材在210～250℃下分别时效15～90 min时的快速时效工艺.结果表明:提高时效温度可显著加快6063铝合金挤压型材的时效进程,有利于缩短时效的时间和提高生产效率,但同时也会降低挤压型材的峰值强度.6063铝合金挤压型材较为理想的快速时效工艺为:时效温度210～220℃,时效时间45～90...     

电磁搅拌器对6063合金质量的影响

本文通过常规6063合金的生产与加装电磁搅拌器的生产工艺过程对其参数性能差异的对比，分析采用电磁搅拌器6063合金棒组织性能的影响，结果表明采用电磁搅拌器，生产出的合金棒材的质量在各个方面均优于常规铸造生产的合金棒材质量。     

稀土对6063铝合金导电、导热性能的影响

在实验基础上研究了稀土对6063铝合金导电、导热性能的影响及作用机理。实验研究表明，稀土可改善6063铝合金导电、导热性能，同时，还对镁，硅含量及热处理工艺对6063铝合金性能的影响做了分析和研究。     

Microstructure and fatigue properties of hydroformed aluminum alloys 6063 and 5754

This study investigated the microstructure and fatigue properties of hydroformed sections of the 5754 and 6063 aluminum alloys. The second-phase particles in 6063-T7 are identified as a mixture of Al₁₂Fe₃Si and Al₉Fe₂Si₂, with a slightly higher fraction of the former. The constituent particles in the 5754 alloy are Al₄Mn-type hexagonal compounds, where Mn is partially substituted by various other elements, resulting in Al₄(Fe,Mn,Si,Cr). The results show that despite its lower yield strength, the hydroformed 5754 alloy has higher ultimate tensile strength, ductility, and, more importantly, higher fatigue resistance than the 6063 material. Both crystallographic stage I and noncrystallographic stage II cracking are found in the 6063-T7 samples, but only stage II cracking is observed in the 5754 alloy. This implies that the low fatigue strength of 6063-T7 is related to its relatively large grain size, resulting in rapid stage I crack propagation. The higher fatigue lives of the 5754 alloy compared to the 6063 alloy in both the low- and high-cycle life regimes are due to the increased fatigue-crack-initiation and propagation resistance of the 5754 alloy and its probable cyclic strain-hardening behavior.     

6063铝合金化学成分的合理选择

介绍了6063铝合金化学成分对生产优质铝型材的影响，通过合理选择Mg2Si的含量，来确定Mg和Si合理的化学成分范围。     

控制铝合金挤压板材平面度的方法探究

6063C铝合金板材为苹果ipad后壳的主要原材料,用量大,质量要求高。本文主要分析6063C铝合金板材挤压生产中平面度问题的原因及控制办法,从模具、离线精整和在线精整三个方面进行方法探究,并在该产品的生产实践中,根据离线精整的原理提出了在线精整的理念,并得到了很好的利用。     

A Study on the Combined Treatment of Cryorolling,Short-Annealing,and Aging for the Development of Ultrafine-Grained Al 6063 Alloy with Enhanced Strength and Ductility

High-strength ultrafine-grained (UFG) metals and alloys often show a reduced tensile ductility when compared with their coarse-grained counterparts. The earlier attempts in trying to improve their ductility usually have led to sacrificing its strength. Optimized process conditions are proposed to achieve both high strength and high ductility in the Al 6063 alloy in the current work. It involves solution treatment of the Al 6063 alloy to dissolve the second-phase particles, cryorolling (CR) to produce a high density of dislocations, short annealing (SA) treatment to recrystallize partially the microstructure without affecting the age-hardening effect, and finally aging treatment to generate highly dispersed nano precipitates. The solution treatment prior to CR combined with post-CR SA at 428 K (155 °C) for 5 minutes followed by aging treatment at 398 K (125 °C) for 12 hours are the optimum processing conditions to obtain the UFG microstructure with improved tensile strength (286 MPa) and good tensile ductility (14 pct) in the Al 6063 alloy. It is observed that the accumulation of dislocations and the formation of nanosized precipitates are responsible for improving the strength, whereas both a low dislocation density and a high density of nanosized precipitates contribute to the improvement in ductility of the CR Al 6063 alloy subjected to an optimized treatment of short annealing and aging.     

6063铝合金挤压型材质量影响因素及解决方法

挤压铸锭的质量对铝型材的质量有着举足轻重的影响，高质量的挤压铸锭是获得高质量铝型材的基础。本文分别从铝型材的化学元素成分控制、熔体质量、铸造的工艺参数、铸锭的均匀化处理等方面探讨了提高6063铝合金挤压铸锭质量的技术途径。     

微量Si、Mg元素对细化剂作用效果的影响

研究了6063合金中的微量Si、Mg元素对Al-Ti-C中间合金细化效果的影响，并探讨了其影响机理。试验结果表明，当6063铝合金中同时存在微量的Si、Mg元素时，Al-Ti-C的细化效果会更加显著。     

6063挤压型材的生产工艺分析

对6063挤压型材的生产全过程进行了分析,确定了该合金最佳的成分设计,加工和热处理等工艺。     

Investigating the Effect of WC on the Hardness and Wear Behaviour of Surface Modified AA 6063

The objective of this work is to reinforce Tungsten Carbide (WC) onto the surface of AA 6063 aluminium alloy using Gas Tungsten Arc (GTA) as heat source and investigate the hardness and wear properties. Based on number of trials, optimum GTA heat source parameters are finalized with reference to the proper fusion of base metal. It is found that the hardness is reduced after the application of heat. After the reinforcement of WC, the hardness returns back to the base metal value. In order to further to improve the properties, the reinforced alloy is heat Treated. The Microhardness of the reinforced and aged AA 6063 is increased by 50% with respect to base metal. The wear resistance of the reinforced surface is improved by 52% with respect to base metal. Characterization techniques like SEM, EDX and XRD are done and the presence of WC is confirmed.