CN109531060A - 一种多孔仿真大理石铝单板及其制备方法 - Google Patents

一种多孔仿真大理石铝单板及其制备方法 Download PDF

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CN109531060A
CN109531060A CN201811380227.8A CN201811380227A CN109531060A CN 109531060 A CN109531060 A CN 109531060A CN 201811380227 A CN201811380227 A CN 201811380227A CN 109531060 A CN109531060 A CN 109531060A
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aluminum veneer
scagliola
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姚国平
姚三毛
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Jiaxing Caiman Curtain Wall Material Co Ltd
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Abstract

本发明公开了一种多孔仿真大理石铝单板,其制作方法包括钣金加工和表面涂装加工。所述钣金加工经过剪板下料、划线开角、冲角码孔、折弯成型、烧焊拼接、装加强筋、安装角码、激光打孔、打磨抛光等工序获得了待喷涂的基体铝材,然后进行表面涂装加工,经过工件表面预处理、涂抹封闭剂、喷砂处理、喷底漆、喷彩点、喷耐老化漆等工序,最终获得多孔仿真大理石铝单板。本发明所制备的仿真大理石铝单板具有美观的装饰性能,呈现出仿大理石的立体感,较好的抗老化性能,使得铝单板使用寿命可以保持20年以上,另外还兼具了优异的阻燃性能,满足了高档建筑材料的抗阻燃要求。

Description

一种多孔仿真大理石铝单板及其制备方法
技术领域
本发明属于表面工程领域,具体涉及一种多孔仿真大理石铝单板及其制备方法。
背景技术
大理石作为一种重要的建筑材料,由于其磨光以后呈现立体的质感,美观大方,因此深受人们的青睐,对其需求日渐旺盛,但是真正的大理石制作成本高昂,让人们望而却步,所以仿大理石建筑材料的出现成为建筑行业一颗耀眼的新星。
在建筑材料上喷一层仿大理石油漆可以达到大理石的装饰效果。
另外,近些年来,火灾频频发生,发生的地点主要集中在高档的酒店、购物
等娱乐场所,都是日常人群比较集中的地方,这就对这些地方使用的建筑材料提出了很高的要求—具有优异的阻燃性能,众所周知,火灾经过3分钟后会迅速发生蔓延,如果阻燃材料能够阻止火势蔓延几分钟到十几分钟,就能够挽救更多的生命,所以研发新型抗阻燃性的建筑材料迫在眉睫。在建筑材料中加入纳米材料会增添材料的某些特殊的附加功能比如阻燃性、抗紫外线、杀菌、疏水等性能,可以满足上述建筑材料的要求。
发明内容
本发明的目的是提供一种多孔仿真大理石铝单板,产品具有立体质感很强的仿大理石效果,并且具有优异的阻燃性能。
本发明采用的技术方案是,一种多孔仿真大理石铝单板,具体制作方法步骤如下:
(1)钣金加工;
(a)剪板下料,根据产品设计图纸选择铝板材准备钣金加工,然后利用剪板机将铝板材冲裁成各种形状的料件;
(b)划线开角,针对上述料件划出待加工部分的位置和界线,检查毛坯是否符合要求,合理分配加工余量,按图纸中规定的开角位置、开角形状,调整模具方向及定位,在开角机上开角;
(c)冲角码孔,按照角码起始位置及角码间距在相应磨具上调整好定位或做好标记,再按图纸标出冲孔中心位置,用冲床对角码料进行冲孔;
(d)折弯成型,在折弯机上,根据图纸要求及工件形状,确定折边顺序后进行折弯;
(e)烧焊拼接,利用氩弧焊枪对需要拼接的工件进行焊接;
(f)装加强筋,加强筋使用6063铝合金,其通过螺栓与铝主板相连接;
(g)安装角码,根据铝折边上冲出的角码孔及角码安装高度用抽钉枪安装角码,角码一般安装在板的内边,角码通过拉铆钉与铝折边相连接;
(h)激光打孔,调节激光器的相关工艺参数,控制激光束斑直径对铝主板进行激光打孔,孔的大小与相对位置按照图纸上的工艺要求执行;
(i)打磨抛光,利用打磨砂轮、锉刀、粗砂纸或细砂纸打磨焊缝、表面缺陷、针刺、毛边、边缘齿口部位,准备表面涂装加工;
(2)表面涂装加工;
(a)工件表面预处理,利用粗砂纸先对待喷涂的表面进行打磨,然后用脱脂剂进行除油处理;
(b)涂抹封闭剂,利用辊涂的方式将水溶性封闭剂涂覆在基体铝材上,再用真空干燥箱烘干表面固化成膜;
(c)喷砂处理,利用人工方式将大理石砂砾洒到封闭后的基体铝材上;
(d)喷底漆,底漆选择UV光固化水性仿大理石涂料,按重量份数来计算,成分包括:环氧树脂改性的水性丙烯酸树脂乳液30~50份、硅藻土粉末5~10份、丙二醇丁醚2~5份、纳米氢氧化铝1~10份、KH570硅烷偶联剂10~15份、TPO-L光引发剂1~5份、活性稀释剂1~5份、消泡剂1~5份、萜烯松香树脂1~5份,将底漆和稀释剂(去离子水)按体积比为2~3:1勾兑一起并搅拌均匀,喷涂在表面上,在紫外线发生器产生的紫外线作用下,辐照表面10 min,完成光固化交联反应;
(e)喷彩点,利用空气喷枪对喷砂表面进行喷彩点,涂料使用UV光固化水性仿大理石彩点漆,同样利用紫外线光固化成膜10 min;
(f)喷耐老化漆,将环保型氟碳涂料和稀释剂(去离子水)按体积比为1:0.5~0.8混合并搅拌均匀,涂覆在彩点漆的表面上,放入真空干燥箱固化成膜,形成最终产品。
进一步的,步骤(2)中所述纳米氢氧化铝是阻燃性材料,可用纳米氢氧化镁或三氧化二锑进行替换。
进一步的,所述UV光固化水性仿大理石彩点漆,在UV光固化底漆涂料成分基础上,增添了水性色浆,调配色浆比重可以改变漆膜的颜色。
进一步的,所述铝单板从内向外依次包括基体铝材、封闭底层、砂粒层、底漆层、彩点漆涂层、耐老化涂层。
进一步的,所述的基体铝材包括铝主板、铝折边、角码、加强筋。
进一步的,所述铝主板表面呈现多孔结构,孔的直径为5mm。
采用本发明提供的技术方案,可获得以下有益效果:
本发明所制备的仿真大理石铝单板具有优异的阻燃性能、抗老化性能以及美观的装饰性能,使用寿命可以保持20年以上。
具体实施方式:
下面结合具体实施例对本发明作进一步说明。
实施例1:
一种多孔仿真大理石铝单板,具体制作方法步骤如下:
(1)钣金加工。
(a)剪板下料。根据产品设计图纸选择铝板材准备钣金加工,然后利用剪板机将铝板材冲裁成各种形状的料件。
(b)划线开角。针对上述料件划出待加工部分的位置和界线,检查毛坯是否符合要求,合理分配加工余量,按图纸中规定的开角位置、开角形状,调整模具方向及定位,在开角机上开角。
(c)冲角码孔。按照角码起始位置及角码间距在相应磨具上调整好定位或做好标记,再按图纸标出冲孔中心位置,用冲床对角码料进行冲孔。
(d)折弯成型。在折弯机上,根据图纸要求及工件形状,确定折边顺序后进行折弯。
(e)烧焊拼接。利用氩弧焊枪对需要拼接的工件进行焊接。
(f)装加强筋。加强筋使用6063铝合金,其通过螺栓与铝主板相连接,打孔后加强筋铝角铝槽底部必须保持平整,必须与板面接触良好,不得有冲孔后出现凹凸不平及倒刺现象,以免由于出现凹凸不平及倒刺现象影响加强筋与铝主板吻合的紧密度。
(g)安装角码。根据铝折边上冲出的角码孔及角码安装高度用抽钉枪安装角码,角码一般安装在板的内边,角码通过拉铆钉与铝折边相连接。
(h)激光打孔。调节激光器的相关工艺参数,控制激光束斑直径对铝主板进行激光打孔,孔的大小与相对位置按照图纸上的工艺要求执行,激光器工作电压为27~30KV,能量密度为1~6J/cm2
(i)打磨抛光。利用打磨砂轮、锉刀、粗砂纸或细砂纸打磨焊缝、表面缺陷、针刺、毛边、边缘齿口部位,准备表面涂装加工。
(2)表面涂装加工。
(a)工件表面预处理。利用粗砂纸先对待喷涂的表面进行打磨去除氧化皮,然后用脱脂剂在75~85℃下进行除油处理,接下来用自来水冲洗铝单板表面不挂水珠,视为除油彻底干净。
(b)涂抹封闭剂。利用辊涂的方式将水溶性封闭剂涂覆在基体铝材上,再用真空干燥箱在100~150℃下烘干表面固化成膜。
(c)喷砂处理。利用人工方式将大理石砂砾洒到封闭后的基体铝材上,注意砂砾要分散均匀,厚度要保持一致,否则影响后序涂层覆盖效果。
(d)喷底漆。底漆选择UV光固化水性仿大理石涂料,按重量份数来计算,成分包括:环氧树脂改性的水性丙烯酸树脂乳液30~50份、硅藻土粉末5~10份、丙二醇丁醚2~5份、纳米氢氧化铝1~10份、KH570硅烷偶联剂10~15份、TPO-L光引发剂1~5份、活性稀释剂1~5份、消泡剂1~5份、萜烯松香树脂1~5份,将底漆和稀释剂(去离子水)按体积比为2~3:1勾兑一起并搅拌均匀,喷涂在表面上,在400W紫外线发生器产生的紫外线(波长为365 nm)作用下,辐照表面10 min,完成光固化交联反应。
(e)喷彩点。利用空气喷枪对喷砂表面进行喷彩点,涂料使用UV光固化水性仿大理石彩点漆,同样利用紫外线光固化成膜10 min。
(f)喷耐老化漆。将环保型氟碳涂料和稀释剂(去离子水)按体积比为1:0.5~0.8混合并搅拌均匀,涂覆在彩点漆的表面上,放入真空干燥箱于100~150℃下固化成膜,形成最终产品。
喷涂技术要求:
铝板表面每个涂层厚度要保持在10~15μm之间,喷底漆、喷彩点和喷耐老化漆均可以使用空气喷涂方式进行,具体工作参数如下:涂料供给方式为吸上式,喷涂空气压力为0.28~0.35MPa,喷涂有效距离为20~30cm,涂料喷出量为0.07L/min,涂料喷嘴口径为1.7mm,喷枪重量为0.45Kg。
所述UV光固化水性仿大理石彩点漆,在UV光固化底漆涂料成分基础上,增添了水性色浆,调配色浆比重可以改变漆膜的颜色。
所述铝单板从内向外依次包括基体铝材、封闭底层、砂粒层、底漆层、彩点漆涂层、耐老化涂层。
所述的基体铝材包括铝主板、铝折边、角码、加强筋。
所述的铝主板和铝折边,需要进行烧焊拼接,做成壳状的基体铝材。
所述加强筋通过螺栓与铝主板相连接。
所述角码通过拉铆钉与铝折边相连接。
所述铝主板表面呈现多孔结构,孔的直径为5mm。
实施例2:与实施例1的区别是,纳米氢氧化铝要用纳米氢氧化镁进行替换。
实施例3:与实施例1的区别是,纳米氢氧化铝要用三氧化二锑进行替换。
本发明提供了一种多孔仿真大理石铝单板,所制备的仿真大理石铝单板具有美观的装饰性能,呈现出仿大理石的立体感,较好的抗老化性能,使得铝单板使用寿命可以保持20年以上,另外还兼具了优异的阻燃性能,满足了高档建筑材料的抗阻燃要求。
最后应当说明的是,以上内容仅用以说明本发明的技术方案,而非对本发明保护范围的限制,本领域的普通技术人员对本发明的技术方案进行的简单修改或者等同替换,均不脱离本发明技术方案的实质和范围。

Claims (7)

1.一种多孔仿真大理石铝单板的制备方法,其特征在于,具体制作方法步骤如下:
(1)钣金加工;
(a)剪板下料,根据产品设计图纸选择铝板材准备钣金加工,然后利用剪板机将铝板材冲裁成各种形状的料件;
(b)划线开角,针对上述料件划出待加工部分的位置和界线,检查毛坯是否符合要求,合理分配加工余量,按图纸中规定的开角位置、开角形状,调整模具方向及定位,在开角机上开角;
(c)冲角码孔,按照角码起始位置及角码间距在相应磨具上调整好定位或做好标记,再按图纸标出冲孔中心位置,用冲床对角码料进行冲孔;
(d)折弯成型,在折弯机上,根据图纸要求及工件形状,确定折边顺序后进行折弯;
(e)烧焊拼接,利用氩弧焊枪对需要拼接的工件进行焊接;
(f)装加强筋,加强筋使用6063铝合金,其通过螺栓与铝主板相连接;
(g)安装角码,根据铝折边上冲出的角码孔及角码安装高度用抽钉枪安装角码,角码一般安装在板的内边,角码通过拉铆钉与铝折边相连接;
(h)激光打孔,调节激光器的相关工艺参数,控制激光束斑直径对铝主板进行激光打孔,孔的大小与相对位置按照图纸上的工艺要求执行;
(i)打磨抛光,利用打磨砂轮、锉刀、粗砂纸或细砂纸打磨焊缝、表面缺陷、针刺、毛边、边缘齿口部位,准备表面涂装加工;
(2)表面涂装加工;
(a)工件表面预处理,利用粗砂纸先对待喷涂的表面进行打磨,然后用脱脂剂进行除油处理;
(b)涂抹封闭剂,利用辊涂的方式将水溶性封闭剂涂覆在基体铝材上,再用真空干燥箱烘干表面固化成膜;
(c)喷砂处理,利用人工方式将大理石砂砾洒到封闭后的基体铝材上;
(d)喷底漆,底漆选择UV光固化水性仿大理石涂料,按重量份数来计算,成分包括:环氧树脂改性的水性丙烯酸树脂乳液30~50份、硅藻土粉末5~10份、丙二醇丁醚2~5份、纳米氢氧化铝1~10份、KH570硅烷偶联剂10~15份、TPO-L光引发剂1~5份、活性稀释剂1~5份、消泡剂1~5份、萜烯松香树脂1~5份,将底漆和稀释剂按体积比为2~3:1勾兑一起并搅拌均匀,喷涂在表面上,在紫外线发生器产生的紫外线作用下,辐照表面10 min,完成光固化交联反应;
(e)喷彩点,利用空气喷枪对喷砂表面进行喷彩点,涂料使用UV光固化水性仿大理石彩点漆,同样利用紫外线光固化成膜10 min;
(f)喷耐老化漆,将环保型氟碳涂料和稀释剂按体积比为1:0.5~0.8混合并搅拌均匀,涂覆在彩点漆的表面上,放入真空干燥箱固化成膜,形成最终产品。
2.根据权利要求1所述的多孔仿真大理石铝单板的制备方法,其特征在于,步骤(2)中所述纳米氢氧化铝是阻燃性材料,可用纳米氢氧化镁或三氧化二锑进行替换。
3.根据权利要求1所述的多孔仿真大理石铝单板的制备方法,其特征在于,所述UV光固化水性仿大理石彩点漆,在UV光固化底漆涂料成分基础上,增添了水性色浆,调配色浆比重可以改变漆膜的颜色。
4.一种多孔仿真大理石铝单板,其特征在于,采用权利要求1-3任一项所述的制备方法得到。
5.根据权利要求4所述的多孔仿真大理石铝单板,其特征在于,所述铝单板从内向外依次包括基体铝材、封闭底层、砂粒层、底漆层、彩点漆涂层、耐老化涂层。
6.根据权利要求5所述的多孔仿真大理石铝单板,其特征在于,所述的基体铝材包括铝主板、铝折边、角码、加强筋。
7.根据权利要求6所述的多孔仿真大理石铝单板,其特征在于,所述铝主板表面呈现多孔结构,孔的直径为5mm。
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