CN112046103B - 一种高耐磨玻璃钢夹砂管及其制造方法 - Google Patents
一种高耐磨玻璃钢夹砂管及其制造方法 Download PDFInfo
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Abstract
本发明公开了一种高耐磨玻璃钢夹砂管,包括内衬层、增强层和外防护层,内衬层、增强层和外防护层从内至外依次设置,内衬层包括内表面层和次内层,内表面层由若干层芳纶纤维组成,增强层由热固性树脂和石英砂混合制成,外防护层由热固性树脂与玻璃纤维混合制成,本发明还公开了一种高耐磨玻璃钢夹砂管的制造方法,包括制造内衬层;制备增强层;制备外防护层,在现有技术的基础上,改进玻璃钢夹砂管的结构,让芳纶纤维以特定的角度缠绕,有效提高玻璃钢夹砂管的轴向作用力,可以有效提高玻璃钢夹砂管对内部压力的承受能力,又将芳纶纤维多层重叠,从而更进一步的提升玻璃钢夹砂管的内部承受能力。
Description
技术领域
本发明属于玻璃钢管道技术领域,尤其涉及一种高耐磨玻璃钢夹砂管及其制造方法。
背景技术
现有的缠绕玻璃钢管道为管端承插接口并管体结构为螺旋交叉往复缠绕和环向缠绕加夹砂的结构,螺旋交叉缠绕提供管道的轴向和环向强度,环向缠绕只提供环向强度,对于管道本身的在长度方向的强度并无任何增益,而现有的玻璃钢夹砂管与其他管道连通时,通常需要承受来自内部的作用力,导致现有的玻璃钢夹砂管因压力过大而发生环向变形,进而进一步导致管道破裂,因此,迫切的需要一种高耐磨玻璃钢夹砂管来避免管道压力过大导致的膨胀破裂。
发明内容
为解决现有技术中玻璃钢夹砂管容易因内部压力而发生变形破裂的问题,本发明提出一种高耐磨玻璃钢夹砂管及其制造方法。
一种高耐磨玻璃钢夹砂管,包括内衬层、增强层和外防护层,所述内衬层、所述增强层和所述外防护层从内至外依次设置,所述内衬层包括内表面层和次内层,所述内表面层由若干层芳纶纤维组成,所述芳纶纤维按照预设缠绕角度盘绕设置于所述次内层的外周侧,且相邻的所述芳纶纤维的缠绕方向相反,所述增强层由热固性树脂和石英砂混合制成,所述热固性树脂与所述石英砂的质量比为:16~22:78~84,所述外防护层由所述热固性树脂与玻璃纤维混合制成,所述玻璃纤维沿所述外防护层的长度延伸方向环向设置于所述外防护层的外周侧。
其中,所述次内层为包括树脂层和内管层,所述树脂层位于所述内管层的外周侧,且所述树脂层的外周侧设置有缠绕轨道,所述缠绕轨道与所述芳纶纤维相契合,所述芳纶纤维设置于所述缠绕轨道的内部,所述树脂层采用热固性树脂制成。
其中,所述热固性树脂由丙烯酸树脂、消泡剂、固化剂按照60~80:2~10:18~30的质量比均匀混合制成。
其中,所述内管层采用防腐耐水树脂和聚乙烯管制成,所述防腐耐水树脂位于所述聚乙烯管的内部,并与所述聚乙烯管无缝粘连,所述聚乙烯管则位于所述树脂层的内部。
其中,所述固化剂为异氰酸酯、吡啶、氨基树脂、带环氧基团树脂、四异丙氧基钛中的一种,所述消泡剂为BX-70和NP-10中的一种。
其中,所述防腐耐水树脂为环氧树脂、不饱和聚酯树脂、呋喃树脂、酚醛树脂中的一种。
本发明还提出一种高耐磨玻璃钢夹砂管的制造方法,包括所述的一种高耐磨玻璃钢夹砂管,还包括如下步骤:
制造内衬层,配置所述防腐耐水树脂,在所述聚乙烯管的内部均匀涂上所述防腐耐水树脂,利用内部设有与所述缠绕轨道契合的第一模具,让所述热固性树脂流至并浸透所述聚乙烯管的外周侧,直至完全,将所述第一模具送至固化机,待所述树脂层固化,且自然冷却后,打开第一模具,将被所述树脂层包覆的所述聚乙烯管送至缠绕机,利用缠绕机将单层所述芳纶纤维缠绕于所述缠绕轨道中,调换所述聚乙烯管的方向,再次进行缠绕,若干次缠绕完成后,所述内衬层制备完成;
制备增强层,将所述热固性树脂与所述石英砂混合均匀,并在所述聚乙烯管的外周侧套设保护膜和第二模具,将混有所述石英砂的所述热固性树脂送入所述第二模具中,并经固化机固化,再将第二模具脱除,即可完成带有所述增强层的所述聚乙烯管的制作;
制备外防护层,将带有所述增强层的所述聚乙烯管送至缠绕机,并将所述玻璃纤维以垂直所述聚乙烯管的角度环形缠绕于所述聚乙烯管的外周侧,并套设第三模具,将所述热固性树脂倒入,待所述热固性树脂完全浸润所述玻璃纤维后,将所述第三模具送至固化机,待固化完成并自然冷却后,将所述第三模具脱除,即完成高耐磨玻璃钢夹砂管的制造。
其中,所述第一模具为圆形筒状结构,且内部有凸出的并与所述缠绕轨道相契合的凸形条,所述第一模具的半径等于所述聚乙烯管的半径加上所述树脂层的宽度和所述内表面层的宽度之和。
其中,所述第二模具为圆筒形结构,所述第二模具的半径等于所述第一模具的半径与所述增强层的宽度之和,所述第三模具也为圆筒形结构,其半径等于所述第二模具的半径与所述外防护层的宽度之和。
本发明的有益效果为:在现有技术的基础上,改进玻璃钢夹砂管的结构,让所述芳纶纤维以特定的角度缠绕,有效提高玻璃钢夹砂管的轴向作用力,可以有效提高玻璃钢夹砂管对内部压力的承受能力,又将所述芳纶纤维多层重叠,从而更进一步的提升玻璃钢夹砂管的内部承受能力。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明一种高耐磨玻璃钢夹砂管及其制造方法的剖视结构示意图。
图2是本发明一种高耐磨玻璃钢夹砂管及其制造方法的内衬层的主视结构示意图。
图3是本发明一种高耐磨玻璃钢夹砂管及其制造方法的制造方法流程结构示意图。
10-内衬层、20-增强层、30-外防护层、11-内表面层、12-次内层、111-芳纶纤维、121-树脂层、122-内管层、123-缠绕轨道、124-聚乙烯管、125-防腐耐水树脂。
具体实施方式
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。
在本发明的描述中,需要理解的是,术语“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,在本发明的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
请参阅图1至图3,本发明提供一种技术方案:
具体实施例1:
S101制造内衬层10,配置所述防腐耐水树脂125,在所述聚乙烯管124的内部均匀涂上所述防腐耐水树脂125,利用内部设有与所述缠绕轨道123契合的第一模具,让所述热固性树脂流至并浸透所述聚乙烯管124的外周侧,直至完全,将所述第一模具送至固化机,待所述树脂层121固化,且自然冷却后,打开第一模具,将被所述树脂层121包覆的所述聚乙烯管124送至缠绕机,利用缠绕机将单层所述芳纶纤维111缠绕于所述缠绕轨道123中,调换所述聚乙烯管124的方向,再次进行缠绕,若干次缠绕完成后,所述内衬层10制备完成;
本实施例中,所述防腐耐水树脂125选用不饱和聚酯树脂,用刷子将所述防腐耐水树脂125均匀刷在所述聚乙烯管124的内部,所述防腐耐水树脂125在所述聚乙烯管124的内部的厚度为5mm,按照所述丙烯酸树脂:所述消泡剂:所述固化剂=70:5:25的比例配置所述热固性树脂,所述消泡剂用以消除固化过程中搜索丙烯酸树脂产生的气泡,提高所述丙烯酸树脂的抗压能力,所述固化剂则用以固化所述丙烯酸树脂,然后将所述热固性树脂倒入所述第一模具中,所述预设缠绕角度的范围为33~36°,本实施例中,所述第一模具中的凸条与所述热固性树脂的夹角设为34°,并将所述树脂层121的厚度控制在30mm,待浸润完全后,送至固化机固化,并打开所述第一模具,取出被所述树脂层121包覆的所述聚乙烯管124,再将所述聚乙烯管124送至缠绕机,让缠绕机上的所述芳纶纤维111以34°的角度缠绕于所述聚乙烯管124的外周侧,单层所述芳纶纤维111缠绕完成后,调换所述聚乙烯管124的方向,使得所述芳纶纤维111能反向缠绕在所述聚乙烯管124的外周侧,以此提升聚乙烯管124的抗压能力,多次重复,待所述芳纶纤维111缠绕完成后,即完成对所述内衬层10的制备。
S102制备增强层20,将所述热固性树脂与所述石英砂混合均匀,并在所述聚乙烯管124的外周侧套设保护膜和第二模具,将混有所述石英砂的所述热固性树脂送入所述第二模具中,并经固化机固化,再将第二模具脱除,即可完成带有所述增强层20的所述聚乙烯管124的制作;
将所述热固性树脂与所述石英砂按20:80的质量比混合,在将所述内衬层10送至所述第二模具之前,在所述内衬层10的外周侧包覆一层保护膜,保护膜采用聚酯薄膜制成,将所述热固性树脂与所述石英砂的混合物倒入所述第二模具后,保护膜会与所述热固性树脂和所述内衬层10连接,从而使得所述内衬层10与所述热固性树脂无缝粘连,再一次经过固化剂固化及脱模后,即可完成所述增强层20制造。
S103制备外防护层30,将带有所述增强层20的所述聚乙烯管124送至缠绕机,并将所述玻璃纤维以垂直所述聚乙烯管124的角度环形缠绕于所述聚乙烯管124的外周侧,并套设第三模具,将所述热固性树脂倒入,待所述热固性树脂完全浸润所述玻璃纤维后,将所述第三模具送至固化机,待固化完成并自然冷却后,将所述第三模具脱除,即完成高耐磨玻璃钢夹砂管的制造。
将套有增强层20的内衬层10送至缠绕机中,将所述玻璃纤维按从左向右连续环向缠绕设置的方式,均匀设置于所述增强层20的外周侧,在缠绕完成后,将缠绕有所述玻璃纤维的增强层20送至第三模具,再一次倒入所述热固性树脂,所述热固性树脂与所述玻璃纤维浸润均匀后,再次经过固化和脱模,从而完成对玻璃钢夹砂管的制造,所述玻璃纤维与所述热固性树脂混合后,可以有效提升所述热固性树脂的稳定性,以提高对外界传来压力的承受能力,同时也能对内部提供一层保护,即使所述外防护层30受力破碎,也不会影响内部的所述内衬层10,使得所述内衬层10可以正常使用,有效提高玻璃钢夹砂管的适用性。
本发明在现有技术的基础上,改进芳纶纤维111的预设缠绕角度与缠绕方式,有效提高玻璃钢夹砂管对于内部压力的抗压能力,又对热固性树脂的组分提出改进,增设消泡剂来减少热固性树脂固化过程中的气泡,使得热固性树脂的稳定性能更好,本发明还提出一种玻璃钢夹砂管的制造方法,通过各种模具的配合,在保证玻璃钢夹砂管质量的前提下以实现制造过程的快捷。
以上所揭露的仅为本发明一种较佳实施例而已,当然不能以此来限定本发明之权利范围,本领域普通技术人员可以理解实现上述实施例的全部或部分流程,并依本发明权利要求所作的等同变化,仍属于发明所涵盖的范围。
Claims (2)
1.一种高耐磨玻璃钢夹砂管,其特征在于,包括内衬层、增强层和外防护层,所述内衬层、所述增强层和所述外防护层从内至外依次设置,所述内衬层包括内表面层和次内层,所述内表面层由若干层芳纶纤维组成,所述芳纶纤维按照预设缠绕角度盘绕设置于所述次内层的外周侧,且相邻的所述芳纶纤维的缠绕方向相反,所述增强层由热固性树脂和石英砂混合制成,所述热固性树脂与所述石英砂的质量比为:16~22:78~84,所述外防护层由所述热固性树脂与玻璃纤维混合制成,所述玻璃纤维沿所述外防护层的长度延伸方向环向设置于所述外防护层的外周侧;所述次内层为包括树脂层和内管层,所述树脂层位于所述内管层的外周侧,且所述树脂层的外周侧设置有缠绕轨道,所述缠绕轨道与所述芳纶纤维相契合,所述芳纶纤维设置于所述缠绕轨道的内部,所述树脂层采用热固性树脂制成;
所述热固性树脂由丙烯酸树脂、消泡剂、固化剂按照60~80:2~10:18~30的质量比均匀混合制成;
所述内管层采用防腐耐水树脂和聚乙烯管制成,所述防腐耐水树脂位于所述聚乙烯管的内部,并与所述聚乙烯管无缝粘连,所述聚乙烯管则位于所述树脂层的内部;
所述固化剂为异氰酸酯、吡啶、氨基树脂、带环氧基团树脂、四异丙氧基钛中的一种,所述消泡剂为BX-70和NP-10中的一种;
所述防腐耐水树脂为环氧树脂、不饱和聚酯树脂、呋喃树脂、酚醛树脂中的一种。
2.一种高耐磨玻璃钢夹砂管的制造方法,包括如权利要求1所述的一种高耐磨玻璃钢夹砂管,其特征在于,还包括如下步骤:
制造内衬层,配置所述防腐耐水树脂,在所述聚乙烯管的内部均匀涂上所述防腐耐水树脂,利用内部设有与所述缠绕轨道契合的第一模具,让所述热固性树脂流至并浸透所述聚乙烯管的外周侧,直至完全,将所述第一模具送至固化机,待所述树脂层固化,且自然冷却后,打开第一模具,将被所述树脂层包覆的所述聚乙烯管送至缠绕机,利用缠绕机将单层所述芳纶纤维缠绕于所述缠绕轨道中,调换所述聚乙烯管的方向,再次进行缠绕,若干次缠绕完成后,所述内衬层制备完成;
制备增强层,将所述热固性树脂与所述石英砂混合均匀,并在所述聚乙烯管的外周侧套设用聚酯薄膜制成的保护膜和第二模具,将混有所述石英砂的所述热固性树脂送入所述第二模具中,并经固化机固化,再将第二模具脱除,即可完成带有所述增强层的所述聚乙烯管的制作;
制备外防护层,将带有所述增强层的所述聚乙烯管送至缠绕机,并将所述玻璃纤维以垂直所述聚乙烯管的角度环形缠绕于所述聚乙烯管的外周侧,并套设第三模具,将所述热固性树脂倒入,待所述热固性树脂完全浸润所述玻璃纤维后,将所述第三模具送至固化机,待固化完成并自然冷却后,将所述第三模具脱除,即完成高耐磨玻璃钢夹砂管的制造;
所述第一模具为圆形筒状结构,且内部有凸出的并与所述缠绕轨道相契合的凸形条,所述第一模具的半径等于所述聚乙烯管的半径加上所述树脂层的宽度和所述内表面层的宽度之和;
所述第二模具为圆筒形结构,所述第二模具的半径等于所述第一模具的半径与所述增强层的宽度之和,所述第三模具也为圆筒形结构,其半径等于所述第二模具的半径与所述外防护层的宽度之和。
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