CN105732062A - 一种纤维增强复合承压保温板及其制备方法 - Google Patents
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Abstract
本发明涉及一种纤维增强复合承压保温板及其制备方法,通过将浇注料、添加剂、粘结剂、氧化铝纤维和碳纤维充分搅拌后浇注成复合承压保温板的受热一侧,将浇注料、添加剂、粘结剂、氧化铝纤维、碳纤维和钢纤维充分搅拌后浇注成复合承压保温板的冷却一侧,并将受热一侧及冷却一侧浇注成整体结构,从而实现梯度热导率设计,既可满足承压保温功能要求,又避免了目前加热板、隔热板两件组合使用中因结合面不平整或变形造成的开裂报废,提高了保温板的使用寿命。
Description
技术领域
本发明涉及无机非金属材料领域,具体的说是一种纤维增强复合承压保温板及其制备方法。
背景技术
钛合金、铝锂合金等高强钢、耐热合金在目前具有广泛的应用,采用超塑性高温热压进行上述材料异型板材模压成型具有提高材料塑性、减小变形阻力、消除残余应力、稳定材料组织等诸多优点。高温热压成型采用的设备一般为四柱液压机,所述纤维增强梯度复合承压保温板位于压机工作台和成型模具之间,承担着加热模具、传递压力,同时又要尽量降低热量向压机工作平台的传递,保证压机正常工作。
目前超塑性高温热压成型机的承压保温陶瓷板的材质一般为普通耐火材料,强度低,在使用中容易发生开裂等损坏,使用寿命短。同时两部分组合设计如果两件接触面平面度加工不良,非常容易在加压中直接断裂;即使接触面加工平面度良好,两工件在使用中经过频繁的升降温及交变压力发生不匹配翘曲等变形,也非常容易发生断裂。承压保温陶瓷板的断裂损坏不仅造成自身消耗量增加,同时会造成正在热压加工的工件、模具、压机工作平台损坏,同时导致设备停工、维修造成影响工作周期,造成生产成本浪费,严重限制超塑性热压加工行业的发展。
发明内容
针对上述现有技术中普通耐火材料材质的加热板、隔热板两件组合使用结构中存在的强度低、易开裂、寿命短等问题,本发明提供一种纤维增强复合承压保温板及其制备方法。
为解决上述技术问题,本发明采用的技术方案为:
一种纤维增强复合承压保温板,该复合承压保温板为整体式结构,采用高铝质浇注料、添加剂、粘结剂及增强纤维材料经过一系列工艺制作而成,所述高铝质浇注料中氧化铝含量为50~95%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为水泥或者硅酸铝,在受热一侧50%厚度范围内的复合承压保温板中添加有氧化铝纤维和碳纤维,在冷却一侧50%厚度范围内的复合承压保温板中添加有氧化铝纤维、碳纤维和钢纤维,复合承压保温板受热一侧区域内设有与板面方向平行的加热元件孔。
所述受热一侧的复合承压保温板中各组分所占重量份数为:浇注料70~95份、添加剂0.1~6份、粘结剂0.1~5份、氧化铝纤维0.1~10份和碳纤维0.1~10份。
所述冷却一侧的复合承压保温板中各组分所占重量份数为:浇注料70~95份、添加剂0.1~6份、粘结剂0.1~5份、氧化铝纤维0.1~10份和碳纤维0.1~10份和钢纤维0.1~10份。
所述复合承压保温板沿厚度方向设有安装固定孔。
一种如上所述的纤维增强复合承压保温板的制备方法,包括以下步骤:
步骤一:将浇注料、添加剂、粘结剂、氧化铝纤维和碳纤维充分搅拌后,得混合浇注料放进模具内,用振动机震动所得浇注料,并在此浇注料内沿水平方向平行排列圆棒;
步骤二:再将浇注料、添加剂、粘结剂、氧化铝纤维、碳纤维和钢纤维充分搅拌后,继续铺在模具内上层部分,再次用振动机震动上层浇注料;
步骤三:经过30分钟加压,使料块充分结合,抽出圆棒,得带加热元件安装固定孔的生坯;
步骤四:将所得生坯经过干燥、烧结、多温区保温养护得烧结坯;
步骤五:再将烧结坯经过修边、磨平、表面固化处理、检验,即得纤维增强复合承压保温板。
本发明的有益效果:
本发明提供的纤维增强复合承压保温板,通过梯度热导率设计,既可满足承压保温功能要求,又避免了目前加热板、隔热板两件组合使用中因结合面不平整或变形造成的开裂报废,提高了使用寿命,且安装使用方便;
本发明提供的纤维增强复合承压保温板的制备方法,通过将浇注料、添加剂、粘结剂、氧化铝纤维和碳纤维充分搅拌后浇注成复合承压保温板的受热一侧,将浇注料、添加剂、粘结剂、氧化铝纤维、碳纤维和钢纤维充分搅拌后浇注成复合承压保温板的冷却一侧,并将受热一侧及冷却一侧浇注成整体结构,从而实现梯度热导率设计,既可满足承压保温功能要求,又避免了目前加热板、隔热板两件组合使用中因结合面不平整或变形造成的开裂报废,提高了保温板的使用寿命。
附图说明
图1本发明复合承压保温板的结构示意图;
附图标记:1、氧化铝纤维与碳纤维混合层,2、氧化铝纤维与碳纤维及钢纤维混合层,3、加热元件孔,4、安装固定孔。
具体实施方式
下面结合具体实施方式对本发明做进一步的阐述。
如图所示:一种纤维增强复合承压保温板,该复合承压保温板为整体式结构,采用高铝质浇注料、添加剂、粘结剂及增强纤维材料经过一系列工艺制作而成,所述高铝质浇注料中氧化铝含量为50~95%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为水泥或者硅酸铝,在受热一侧50%厚度范围内的复合承压保温板中添加有氧化铝纤维和碳纤维,在冷却一侧50%厚度范围内的复合承压保温板中添加有氧化铝纤维、碳纤维和钢纤维,复合承压保温板受热一侧区域内设有与板面方向平行的加热元件孔,所述复合承压保温板沿厚度方向设有安装固定孔。
实施例1
一种纤维增强复合承压保温板的制备方法,包括以下步骤:
步骤一:按照重量份数比,取浇注料70份、添加剂6份、粘结剂5份、氧化铝纤维10份和碳纤维0.1份,充分搅拌后,得混合浇注料放进模具内,用振动机震动所得浇注料,并在此浇注料内沿水平方向平行排列圆棒;所述浇注料中氧化铝含量为95%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为水泥;
步骤二:再按照重量份数比,取浇注料70份、添加剂6份、粘结剂5份、氧化铝纤维10份和碳纤维0.1份和钢纤维10份,充分搅拌后,继续铺在模具内上层部分,再次用振动机震动上层浇注料;所述浇注料中氧化铝含量为95%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为水泥;
步骤三:经过30分钟加压,使料块充分结合,抽出圆棒,得带加热元件安装固定孔的生坯;
步骤四:将所得生坯经过干燥、烧结、多温区保温养护得烧结坯;
步骤五:再将烧结坯经过修边、磨平、表面固化处理、检验,即得纤维增强复合承压保温板。
实施例2
一种纤维增强复合承压保温板的制备方法,包括以下步骤:
步骤一:按照重量份数比,取浇注料95份、添加剂0.1份、粘结剂5份、氧化铝纤维0.1份和碳纤维10份,充分搅拌后,得混合浇注料放进模具内,用振动机震动所得浇注料,并在此浇注料内沿水平方向平行排列圆棒;所述浇注料中氧化铝含量为50%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为硅酸铝;
步骤二:再按照重量份数比,取浇注料95份、添加剂0.1份、粘结剂5份、氧化铝纤维0.1份和碳纤维10份和钢纤维0.1份,充分搅拌后,继续铺在模具内上层部分,再次用振动机震动上层浇注料;所述浇注料中氧化铝含量为50%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为水泥;
步骤三:经过30分钟加压,使料块充分结合,抽出圆棒,得带加热元件安装固定孔的生坯;
步骤四:将所得生坯经过干燥、烧结、多温区保温养护得烧结坯;
步骤五:再将烧结坯经过修边、磨平、表面固化处理、检验,即得纤维增强复合承压保温板。
实施例3
一种纤维增强复合承压保温板的制备方法,包括以下步骤:
步骤一:按照重量份数比,取浇注料85份、添加剂3份、粘结剂2份、氧化铝纤维5份和碳纤维5份,充分搅拌后,得混合浇注料放进模具内,用振动机震动所得浇注料,并在此浇注料内沿水平方向平行排列圆棒;所述浇注料中氧化铝含量为75%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为硅酸铝;
步骤二:再按照重量份数比,取浇注料85份、添加剂3份、粘结剂2份、氧化铝纤维5份和碳纤维5份和钢纤维5份,充分搅拌后,继续铺在模具内上层部分,再次用振动机震动上层浇注料;所述浇注料中氧化铝含量为75%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为水泥;
步骤三:经过30分钟加压,使料块充分结合,抽出圆棒,得带加热元件安装固定孔的生坯;
步骤四:将所得生坯经过干燥、烧结、多温区保温养护得烧结坯;
步骤五:再将烧结坯经过修边、磨平、表面固化处理、检验,即得纤维增强复合承压保温板。
本发明通过梯度热导率设计,既可满足承压保温功能要求,又避免了目前加热板、隔热板两件组合使用中因结合面不平整或变形造成的开裂报废,提高了使用寿命,且安装使用方便;
本发明通过将浇注料、添加剂、粘结剂、氧化铝纤维和碳纤维充分搅拌后浇注成复合承压保温板的受热一侧,将浇注料、添加剂、粘结剂、氧化铝纤维、碳纤维和钢纤维充分搅拌后浇注成复合承压保温板的冷却一侧,并将受热一侧及冷却一侧浇注成整体结构,从而实现梯度热导率设计,既可满足承压保温功能要求,又避免了目前加热板、隔热板两件组合使用中因结合面不平整或变形造成的开裂报废,提高了保温板的使用寿命。
Claims (5)
1.一种纤维增强复合承压保温板,其特征在于:该复合承压保温板为整体式结构,采用高铝质浇注料、添加剂、粘结剂及增强纤维材料经过一系列工艺制作而成,所述高铝质浇注料中氧化铝含量为50~95%,添加剂主要成分为活性氧化硅超微粉,粘结剂主要成分为水泥或者硅酸铝,在受热一侧50%厚度范围内的复合承压保温板中添加有氧化铝纤维和碳纤维,在冷却一侧50%厚度范围内的复合承压保温板中添加有氧化铝纤维、碳纤维和钢纤维,复合承压保温板受热一侧区域内设有与板面方向平行的加热元件孔。
2.如权利要求1所述的纤维增强复合承压保温板,其特征在于:所述受热一侧的复合承压保温板中各组分所占重量份数为:浇注料70~95份、添加剂0.1~6份、粘结剂0.1~5份、氧化铝纤维0.1~10份和碳纤维0.1~10份。
3.如权利要求1所述的纤维增强复合承压保温板,其特征在于:所述冷却一侧的复合承压保温板中各组分所占重量份数为:浇注料70~95份、添加剂0.1~6份、粘结剂0.1~5份、氧化铝纤维0.1~10份和碳纤维0.1~10份和钢纤维0.1~10份。
4.如权利要求1所述的纤维增强复合承压保温板,其特征在于:所述复合承压保温板沿厚度方向设有安装固定孔。
5.一种如权利要求1所述的纤维增强复合承压保温板的制备方法,其特征在于,包括以下步骤:
步骤一:将浇注料、添加剂、粘结剂、氧化铝纤维和碳纤维充分搅拌后,得混合浇注料放进模具内,用振动机震动所得浇注料,并在此浇注料内沿水平方向平行排列圆棒;
步骤二:再将浇注料、添加剂、粘结剂、氧化铝纤维、碳纤维和钢纤维充分搅拌后,继续铺在模具内上层部分,再次用振动机震动上层浇注料;
步骤三:经过30分钟加压,使料块充分结合,抽出圆棒,得带加热元件安装固定孔的生坯;
步骤四:将所得生坯经过干燥、烧结、多温区保温养护得烧结坯;
步骤五:再将烧结坯经过修边、磨平、表面固化处理、检验,即得纤维增强复合承压保温板。
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