CN105437655A - 一种铝复合板及其加工工艺 - Google Patents
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Abstract
本发明公开了一种铝复合板及其加工工艺,包括基板,两块铝板分别采用设置有若干通孔的热熔胶膜作为粘结层复合粘贴于基板的上下两表面。上述铝复合板的加工工艺,工艺步骤为:基板前处理→铝板前处理→铝板与基板的复合粘贴。上述的铝复合板与铝塑板相比,具有如下优点:强度更高、抗风等级更高。
Description
技术领域
本发明涉及装饰板材领域,具体涉及一种能对户外墙面进行装饰的铝复合板及其加工工艺。
背景技术
目前户外墙面通常采用大理石板、幕墙玻璃、铝塑板等材料进行装饰,大理石板和幕墙玻璃的现场安装施工比较繁琐,导致装饰成本比较高;铝塑板由位于中间的基板和粘贴于基板正、反表面的铝板复合粘贴而成,中间的基板通常采用阻燃及防水性能较高的、主要由无机材料制成的阻燃防水无机板,但是这种结构的铝塑板的强度较低、易弯折,抗风等级通常只能达到5~6级。
发明内容
本发明所要解决的技术问题是:将提供一种强度更高、抗风等级更高的铝复合板及其加工工艺。
为了解决上述问题,本发明采用的技术方案为:一种铝复合板,包括基板,其特点是:两块铝板分别采用设置有若干通孔的热熔胶膜作为粘结层复合粘贴于基板的上下两表面。
进一步的,前述的一种铝复合板,其中:基板为阻燃防水无机板。
进一步的,前述的一种铝复合板,其中:每平方厘米热熔胶膜上至少设置有二个通孔。
进一步的,前述的一种铝复合板,其中:基板的上下两表面为粗糙化表面。
进一步的,前述的一种铝复合板,其中:基板的上下两表面上均设置有若干个均匀分布于基板表面并能使基板表面粗糙化的基板凹槽。
进一步的,前述的一种铝复合板,其中:基板上下两表面的每平方厘米上分别至少设置有二个基板凹槽,并且基板凹槽为菱形凹槽。
进一步的,前述的一种铝复合板,其中:铝板上与基板相粘贴的表面为粗糙化表面。
进一步的,前述的一种铝复合板,其中:铝板上与基板相粘贴的表面上设置有若干个均匀分布于铝板表面并能使铝板表面粗糙化的铝板凹槽。
进一步的,前述的一种铝复合板,其中:铝板上与基板相贴合的表面的每平方厘米上至少设置有二个铝板凹槽,并且铝板凹槽为菱形凹槽。
一种铝复合板的加工工艺,其特点是:工艺步骤如下:
(1)基板前处理:对基板的上下两表面分别涂刷环氧树脂胶并干燥使环氧树脂胶固化,环氧树脂胶的要求如下:耐受温度为-50~200℃、耐水性指标中的软化系数不小于0.85、粘结力不小于6N/mm;
(2)铝板前处理:对两块铝板分别进行酸洗和钝化处理;
(3)铝板与基板的复合粘贴:①在两片热熔胶膜上分别冲若干个通孔,并且每平方厘米热熔胶膜上至少设置有二个通孔,热熔胶膜的要求如下:耐受温度为-50~200℃、耐水性指标中的软化系数不小于0.85、粘结力不小于6N/mm;②两块铝板、两片热熔胶膜、基板依次层叠后形成层叠件,层叠件由下至上依次为:铝板、热熔胶膜、基板、热熔胶膜、铝板;③使用两块温度为100~200℃的压板对压在层叠件的上下两侧,对层叠件进行热层压,使铝板通过热熔胶膜与基板相复合粘贴形成复合件;④热层压结束后,立即使用两块温度为-10~60℃的压板对压在复合件的上下两侧,对复合件进行冷层压,从而使铝板牢固地粘贴于基板表面。
进一步的,前述的一种铝复合板的生产工艺,其中:在步骤(1)中,基板涂刷环氧树脂胶前对基板的上下两表面分别进行粗糙化处理,粗糙化处理的过程为:利用压花辊对基板的上下两表面进行滚压压花,经过压花辊滚压后在基板上下两表面分别形成均匀分布的若干基板凹槽,从而形成粗糙化表面,其中基板上下两表面的每平方厘米上分别至少设置有二个基板凹槽。
进一步的,前述的一种铝复合板的生产工艺,其中:在步骤(3)中,层叠前对铝板上与基板相粘贴的表面进行粗糙化处理,粗糙化处理的过程为:利用压花辊对铝板上与基板相粘贴的表面进行滚压压花,经过压花辊滚压后在铝板上形成均匀分布的若干铝板凹槽,从而形成粗糙化表面,其中铝板上与基板相贴合的表面的每平方厘米上至少设置有二个铝板凹槽。
进一步的,前述的一种铝复合板的生产工艺,其中:在步骤(3)中,热层压的时间为1~20min,压力为100~300t;冷层压的时间为1~20min,压力为100~300t。
本发明的优点为:本发明所述的铝复合板与铝塑板相比,具有如下优点:强度更高、抗风等级更高;所述铝复合板的加工工艺能快速、高效地制得质量优越的铝复合板。
附图说明
图1为本发明所述铝复合板的结构示意图。
图2为图1中所示基板的结构示意图。
图3为图1中所示铝板的结构示意图。
图4为图1中所示热熔胶膜的结构示意图。
具体实施方式
下面结合具体实施例和附图对本发明作进一步的详细描述。
一种铝复合板,如图1、图2、图3、图4所示,包括基板1,在本实施例中,基板1为阻燃防水无机板,如:珍珠岩无机板、镁质水泥无机板、硅酸铝无机板等,两块铝板3分别通过热熔胶膜2作为粘结层复合粘贴于基板1的上下两表面,在两块热熔胶膜2上分别设置有若干个均匀分布的通孔21,并且每平方厘米热熔胶膜2上至少设置有二个通孔21。
在本实施例中,基板1的上下两表面上均设置有若干个均匀分布于基板1表面并能使基板1表面粗糙化的基板凹槽11,其中基板1上下两表面的每平方厘米上分别至少设置有二个基板凹槽11,并且基板凹槽11为菱形凹槽,均匀分布于基板1表面的基板凹槽11,一方面能大大提高基板1的抗弯强度,另一方面能增加基板1表面粘贴时的附着力。铝板3上与基板1相粘贴的表面上设置有若干个均匀分布于铝板3表面并能使铝板3表面粗糙化的铝板凹槽31,其中铝板3上与基板1相贴合的表面的每平方厘米上至少设置有二个铝板凹槽31,并且铝板凹槽31为菱形凹槽,均匀分布于铝板3表面的铝板凹槽31,一方面能大大提高铝板3的抗弯强度,另一方面能增加铝板3表面粘贴时的附着力。
上述铝复合板的加工工艺,工艺步骤如下:
(1)基板前处理:首先对基板1的上下两表面分别进行粗糙化处理,粗糙化处理的过程为:利用压花辊对基板1的上下两表面进行滚压压花,经过压花辊滚压后在基板1上下两表面分别形成均匀分布的若干基板凹槽11,从而形成粗糙化表面,其中基板1上下两表面的每平方厘米上分别至少设置有二个基板凹槽11,并且基板凹槽11为菱形凹槽,然后对基板1的上下两表面分别涂刷环氧树脂胶并干燥使环氧树脂胶固化,环氧树脂胶的要求如下:耐受温度为-50~200℃、耐水性指标中的软化系数不小于0.85、粘结力不小于6N/mm,环氧树脂胶的涂刷要求为每平方米涂刷30~50克;本步骤中的环氧树脂胶为道康宁公司生产的型号为DC989SL的自流平硅酮胶;
(2)铝板前处理:对两块铝板3分别进行酸洗和钝化处理;
(3)铝板与基板的复合粘贴:①在两片热熔胶膜2上分别冲若干个均匀分布的通孔21,并且每平方厘米热熔胶膜2上至少设置有二个通孔21,热熔胶膜2的要求如下:耐受温度为-50~200℃、耐水性指标中的软化系数不小于0.85、粘结力不小于6N/mm,在本实施例中,热熔胶膜为湿气固化反应型聚氨酯热熔胶膜,简称PUR热熔胶膜;②两块铝板3、两片热熔胶膜2、基板1按照一定的顺序层叠后形成层叠件,层叠件由下至上依次为:铝板3、热熔胶膜2、基板1、热熔胶膜2、铝板3;层叠前对铝板3上与基板1相互粘贴的表面进行粗糙化处理,粗糙化处理的过程为:利用压花辊对铝板3上与基板1相粘贴的表面进行滚压压花,经过压花辊滚压后在铝板3上形成均匀分布的若干铝板凹槽31,从而形成粗糙化表面,其中铝板3上与基板1相贴合的表面的每平方厘米上至少设置有二个铝板凹槽31,并且铝板凹槽31为菱形凹槽;③使用两块温度为100~200℃的压板对压在层叠件的上下两侧,对层叠件进行热层压,时间为1~20min,压力为100~300t,使铝板3与基板1相复合粘贴形成复合件;④热层压结束后,立即使用两块温度为-10~60℃的压板对压在复合件的上下两侧,对复合件进行冷层压,时间为1~20min,压力为100~300t,从而使铝板3牢固地粘贴于基板1表面;由于预先在基板上涂刷有环氧树脂胶,这样能使铝板3和基板1更加牢固地粘结在一起。
本发明的有益效果为:本发明所述的铝复合板以设置有若干个通孔的热熔胶膜作为粘结层,使两铝板分别复合粘贴于基板的上下两表面,铝板和基板在加热复合时会挤出热熔胶膜上若干通孔中的空气,这样在冷却后会使若干通孔中产生负压,从而能使铝板更牢固的粘贴于基板表面,使基板和铝板相互牵制不易变形,并且热熔胶膜也能起到限制铝板和基板变形的作用,从而大大增强了铝复合板的强度,铝复合板与铝塑板相比具有更高的强度和抗风等级。
Claims (13)
1.一种铝复合板,包括基板,其特征在于:两块铝板分别采用设置有若干通孔的热熔胶膜作为粘结层复合粘贴于基板的上下两表面。
2.根据权利要求1所述的一种铝复合板,其特征在于:基板为阻燃防水无机板。
3.根据权利要求1或2所述的一种铝复合板,其特征在于:每平方厘米热熔胶膜上至少设置有二个通孔。
4.根据权利要求1或2所述的一种铝复合板,其特征在于:基板的上下两表面为粗糙化表面。
5.根据权利要求4所述的一种铝复合板,其特征在于:基板的上下两表面上均设置有若干个均匀分布于基板表面并能使基板表面粗糙化的基板凹槽。
6.根据权利要求5所述的一种铝复合板,其特征在于:基板上下两表面的每平方厘米上分别至少设置有二个基板凹槽,并且基板凹槽为菱形凹槽。
7.根据权利要求1或2所述的一种铝复合板,其特征在于:铝板上与基板相粘贴的表面为粗糙化表面。
8.根据权利要求7所述的一种铝复合板,其特征在于:铝板上与基板相粘贴的表面上设置有若干个均匀分布于铝板表面并能使铝板表面粗糙化的铝板凹槽。
9.根据权利要求8所述的一种铝复合板,其特征在于:铝板上与基板相贴合的表面的每平方厘米上至少设置有二个铝板凹槽,并且铝板凹槽为菱形凹槽。
10.一种如权利要求1或2所述的铝复合板的加工工艺,其特征在于:工艺步骤如下:
(1)基板前处理:对基板的上下两表面分别涂刷环氧树脂胶并干燥使环氧树脂胶固化,环氧树脂胶的要求如下:耐受温度为-50~200℃、耐水性指标中的软化系数不小于0.85、粘结力不小于6N/mm;
(2)铝板前处理:对两块铝板分别进行酸洗和钝化处理;
(3)铝板与基板的复合粘贴:①在两片热熔胶膜上分别冲若干个通孔,并且每平方厘米热熔胶膜上至少设置有二个通孔,热熔胶膜的要求如下:耐受温度为-50~200℃、耐水性指标中的软化系数不小于0.85、粘结力不小于6N/mm;②两块铝板、两片热熔胶膜、基板依次层叠后形成层叠件,层叠件由下至上依次为:铝板、热熔胶膜、基板、热熔胶膜、铝板;③使用两块温度为100~200℃的压板对压在层叠件的上下两侧,对层叠件进行热层压,使铝板通过热熔胶膜与基板相复合粘贴形成复合件;④热层压结束后,立即使用两块温度为-10~60℃的压板对压在复合件的上下两侧,对复合件进行冷层压,从而使铝板牢固地粘贴于基板表面。
11.根据权利要求10所述的一种铝复合板的加工工艺,其特征在于:在步骤(1)中,基板涂刷环氧树脂胶前对基板的上下两表面分别进行粗糙化处理,粗糙化处理的过程为:利用压花辊对基板的上下两表面进行滚压压花,经过压花辊滚压后在基板上下两表面分别形成均匀分布的若干基板凹槽,从而形成粗糙化表面,其中基板上下两表面的每平方厘米上分别至少设置有二个基板凹槽。
12.根据权利要求10或11所述的一种铝复合板的加工工艺,其特征在于:在步骤(3)中,层叠前对铝板上与基板相粘贴的表面进行粗糙化处理,粗糙化处理的过程为:利用压花辊对铝板上与基板相粘贴的表面进行滚压压花,经过压花辊滚压后在铝板上形成均匀分布的若干铝板凹槽,从而形成粗糙化表面,其中铝板上与基板相贴合的表面的每平方厘米上至少设置有二个铝板凹槽。
13.根据权利要求10或11所述的一种铝复合板的加工工艺,其特征在于:在步骤(3)中,热层压的时间为1~20min,压力为100~300t;冷层压的时间为1~20min,压力为100~300t。
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