CN105235311A - 一种通孔蜂窝铝及其生产工艺 - Google Patents
一种通孔蜂窝铝及其生产工艺 Download PDFInfo
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Abstract
本发明涉及一种通过填充物浇注法生产的通孔蜂窝铝及其生产工艺。一种通孔蜂窝铝,包括铝面板、铝底板和通孔蜂窝铝板,通孔蜂窝铝板复合在铝面板和铝底板之间,所述通孔蜂窝铝板的孔洞尺寸均匀,孔洞之间连通。通孔蜂窝铝的生产工艺为制作模具、制备填充料、填充料成型、填充模具、制备铝液、负压浇注、冷却去模具、清理填充料、二次清理、去应力退火、机械加工。该通孔蜂窝铝结构轻盈,具有良好的吸能性、电磁性、吸音降噪等性能;内部孔洞均匀,提高了其机械性能,可进行钻、铣、锯、磨等机械加工,通过该生产工艺生产的通孔蜂窝铝的成型尺寸比物理发泡法生产的尺寸大,生产率高,能满足目前国内高速建设的需要。
Description
技术领域
本发明涉及一种蜂窝铝,具体而言是一种通过填充物浇注法生产的通孔蜂窝铝及其生产工艺。
背景技术
蜂窝铝板是结合航空工业复合蜂窝板技术而开发的金属复合板产品系列。该产品系列具有选材精良、工艺先进和构造合理的优势,不仅在大尺度、平整度有出色的表现,而且在形状、表面处理、色彩、安装系统等方面有众多的选择。因此蜂窝铝在越来越多的领域得到应用。
目前,蜂窝铝的生产制造大多是采用传统的物理发泡法,因此使用这种方法生产的蜂窝铝又称作为“泡沫铝”。但是通过物理发泡法生产的蜂窝铝整体结构都是呈密闭孔,孔洞的尺寸不均匀,严重影响了蜂窝铝的力学性能。
发明内容
本发明的目的是为解决上述技术问题的不足,提供一种结构轻盈、性能优良的通孔蜂窝铝及其生产工艺。
本发明为解决上述技术问题所采用的技术方案是:一种通孔蜂窝铝,包括铝面板、铝底板和通孔蜂窝铝板,通孔蜂窝铝板复合在铝面板和铝底板之间,所述通孔蜂窝铝板的孔洞之间是连通的。
本发明所述通孔蜂窝铝板的孔洞尺寸均匀。
本发明所述通孔蜂窝铝板的孔洞形状不规则。
本发明所述的一种通孔蜂窝铝的生产工艺,包括如下工艺步骤:
步骤一,制作模具:根据所需要的通孔蜂窝铝的密度、孔洞形状及尺寸大小的不同制备相应的模具;
步骤二,制备填充料:按照填充料各原料的配比配成填充料,搅拌均匀,经过烘干、浸涂、再烘干之后备用;
步骤三,填充料成型:将经过步骤二处理后的填充料置于成球机或填充料成型模具中成型为所需要的蜂窝铝孔洞形状和大小的填充料;
步骤四,填充模具:将经过步骤三处理后的填充料加入至步骤一中的模具中,用排气板压紧封口,加热至650~700℃;
步骤五,制备铝液:将铝液熔炼至680~710℃,进行调质处理;
步骤六,浇注:经过步骤四处理后的模具调真空负压至0.03~0.045MPa后,将铝液浇注到步骤四的模具中,浇注速度为铝液5公斤2~4秒完成浇注;
步骤七,冷却去模:待步骤六中的模具及成型通孔蜂窝铝冷却至室温后,脱去模具,取出通孔蜂窝铝;
步骤八,清理填充料:将步骤七中取出的通孔蜂窝铝坯料置于高频振动器中震动,使内部填充料溃散,清理出来;
步骤九,二次清理:将经过步骤八处理后的通孔蜂窝铝坯料置于超声波清洗机中进行二次清洗填充料;
步骤十,退火:将经过步骤九处理后的通孔蜂窝铝坯料置于退火炉中进行180~210℃去应力退火处理,退火时间为2~3小时;
步骤十一,机械加工:将经过步骤十处理后的坯料冷却至室温出炉,按照图纸要求进行机械加工,加工成合格通孔蜂窝铝产品。
本发明所述步骤六中的浇注速度为铝液5公斤3秒完成浇注。
本发明的有益效果是:1、本发明的通孔蜂窝铝结构轻盈,具有良好的吸能性、电磁性、吸音降噪等性能;内部孔洞均匀,提高了其机械性能,可进行钻、铣、锯、磨等机械加工;2、通过本发明的生产工艺生产的通孔蜂窝铝的成型尺寸比物理发泡法生产的尺寸大,生产率高,能满足目前国内高速建设的需要,可以最大尺寸的满足大型设施的需求,如铁路、公路旁的隔离吸音板材,不需要拼接,一次成型,提高安装速度,延长使用寿命,在军工、交通、运输、铁路、公路、建筑等领域具有广泛的应用前景。
附图说明
图1是本发明的结构示意图。
图2是通孔蜂窝铝板的剖面结构示意图。
图中标记:1、铝面板,2、铝底板,3、通孔蜂窝铝板。
具体实施方式
实施例1
如图1所示,一种通孔蜂窝铝,包括铝面板1、铝底板2和通孔蜂窝铝板3,通孔蜂窝铝板3复合在铝面板1和铝底板2之间。通孔蜂窝铝板3的孔洞之间是连通的。通孔蜂窝铝的生产工艺步骤如下:根据所需要的通孔蜂窝铝的密度、孔洞形状及尺寸大小的不同制备相应的模具,按照填充料各原料的配比配成填充料,搅拌均匀,经过烘干、浸涂、在烘干之后备用,处理后的填充料置于成球机或填充料成型模具中成型为所需要的蜂窝铝孔洞形状和大小,成型后的的填充料加入模具中,用排气板压紧封口,加热,同时熔炼铝液,待填充料加热至670℃,铝液熔炼至695℃,将模具调真空负压至0.04MPa后将铝液浇注到模具中,根据铝液5公斤3秒的浇注速度完成浇注,冷却至室温后,去模具,取出通孔蜂窝铝坯料,置于高频振动器中震动,使内部填充料溃散,清理出来,再将坯料置于超声波清洗机中进行二次清洗填充料,之后置于退火炉中进行195℃2.5小时去应力退火处理,冷却至室温出炉后按照图纸要求进行机械加工。
进一步地,所述通孔蜂窝铝板的孔洞形状不规则。
实施例2
如图1所示,一种通孔蜂窝铝,包括铝面板1、铝底板2和通孔蜂窝铝板3,通孔蜂窝铝板3复合在铝面板1和铝底板2之间。通孔蜂窝铝板3的孔洞之间是连通的。通孔蜂窝铝的生产工艺步骤如下:根据所需要的通孔蜂窝铝的密度、孔洞形状及尺寸大小的不同制备相应的模具,按照填充料各原料的配比配成填充料,搅拌均匀,经过烘干、浸涂、在烘干之后备用,处理后的填充料置于成球机或填充料成型模具中成型为所需要的蜂窝铝孔洞形状和大小,成型后的的填充料加入模具中,用排气板压紧封口,加热,同时熔炼铝液,待填充料加热至650℃,铝液熔炼至680℃,将模具调真空负压至0.03MPa后将铝液浇注到模具中,根据铝液5公斤3秒的浇注速度完成浇注,冷却至室温后,去模具,取出通孔蜂窝铝坯料,置于高频振动器中震动,使内部填充料溃散,清理出来,再将坯料置于超声波清洗机中进行二次清洗填充料,之后置于退火炉中进行180℃2.5小时去应力退火处理,冷却至室温后按照图纸要求进行机械加工。
实施例3
如图1所示,一种通孔蜂窝铝,包括铝面板1、铝底板2和通孔蜂窝铝板3,通孔蜂窝铝板3复合在铝面板1和铝底板2之间。通孔蜂窝铝板3的孔洞之间是连通的。通孔蜂窝铝的生产工艺步骤如下:根据所需要的通孔蜂窝铝的密度、孔洞形状及尺寸大小的不同制备相应的模具,按照填充料各原料的配比配成填充料,搅拌均匀,经过烘干、浸涂、在烘干之后备用,处理后的填充料置于成球机或填充料成型模具中成型为所需要的蜂窝铝孔洞形状和大小,成型后的的填充料加入模具中,用排气板压紧封口,加热,同时熔炼铝液,待填充料加热至700℃,铝液熔炼至710℃,将模具调真空负压至0.045MPa后将铝液浇注到模具中,根据铝液5公斤3秒的浇注速度完成浇注,冷却至室温后,去模具,取出通孔蜂窝铝坯料,置于高频振动器中震动,使内部填充料溃散,清理出来,再将坯料置于超声波清洗机中进行二次清洗填充料,之后置于退火炉中进行210℃2.5小时去应力退火处理,冷却至室温后按照图纸要求进行机械加工。
以上所述仅是本发明的优选实施方式,对于本技术领域的普通技术人员来说,在不脱离本本发明技术原理的前提下,还可以做出若干改进和变型,这些也应视为本发明的保护范围。
Claims (5)
1.一种通孔蜂窝铝,包括铝面板(1)、铝底板(2),其特征在于:还包括复合在铝面板(1)和铝底板(2)之间的通孔蜂窝铝板(3),所述通孔蜂窝铝板(3)的孔洞之间是连通的。
2.如权利要求1所述的一种通孔蜂窝铝,其特征在于:所述的通孔蜂窝铝板(3)的孔洞尺寸均匀。
3.如权利要求1或2所述的一种通孔蜂窝铝,其特征在于:所述的通孔蜂窝铝板(3)的孔洞形状不规则。
4.如权利要求1所述的一种通孔蜂窝铝的生产工艺,其特征在于包括如下工艺步骤:
步骤一,制作模具:根据所需要的通孔蜂窝铝的密度、孔洞形状及尺寸大小的不同制备相应的模具;
步骤二,制备填充料:按照填充料各原料的配比配成填充料,搅拌均匀,经过烘干、浸涂、再烘干之后备用;
步骤三,填充料成型:将经过步骤二处理后的填充料置于成球机或填充料成型模具中成型为所需要的蜂窝铝孔洞形状和大小的填充料;
步骤四,填充模具:将经过步骤三处理后的填充料加入至步骤一中的模具中,用排气板压紧封口,加热至650~700℃;
步骤五,制备铝液:将铝液熔炼至680~710℃,进行调质处理;
步骤六,浇注:经过步骤四处理后的模具调真空负压至0.03~0.045MPa后,将铝液浇注到步骤四的模具中,浇注速度为铝液5公斤2~4秒完成浇注;
步骤七,冷却去模:待步骤六中的模具及成型通孔蜂窝铝冷却至室温后,脱去模具,取出通孔蜂窝铝;
步骤八,清理填充料:将步骤七中取出的通孔蜂窝铝坯料,置于高频振动器中震动,使内部填充料溃散,清理出来;
步骤九,二次清理:将经过步骤八处理后的通孔蜂窝铝坯料置于超声波清洗机中进行二次清洗填充料;
步骤十,退火:将经过步骤九处理后的通孔蜂窝铝坯料置于退火炉中进行180~210℃去应力退火处理,退火时间为2~3小时;
步骤十一,机械加工:将经过步骤十处理后的坯料冷却至室温出炉,按照图纸要求进行机械加工,加工成合格通孔蜂窝铝产品。
5.如权利要求4所述的一种通孔蜂窝铝的生产工艺,其特征在于:所述步骤六中的浇注速度为铝液5公斤3秒完成浇注。
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