CN105363653A - 一种管件内圆热喷涂工程塑料的装置及工艺 - Google Patents
一种管件内圆热喷涂工程塑料的装置及工艺 Download PDFInfo
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Abstract
本发明公开了一种管件内圆热喷涂工程塑料的装置及工艺，其装置包括支架、通过导轨副设于支架上的安装板、固设于安装板上的减速电机，减速电机通过联轴器与管件相连，在管件内侧间隙的固设一支柱，在支柱上固设有感应加热线圈，在感应加热线圈下方的支柱上固设有数个喷枪，在感应加热线圈上方固设有控制油缸，控制油缸包括固定的缸筒、设于缸筒内的两活塞、设于缸筒中部的伸出油口及位于缸筒两端的两缩回油口，两活塞均联有各自的活塞杆，两活塞杆均固联一弧形压板，两弧形压板位于管件的内侧。本发明能有效保证喷涂层厚度和致密度的均匀性，并提高表面光洁度，大幅提高喷涂质量，降低产品成本，且生产效率较高。
Description
技术领域
本发明涉及一种用于管件内圆热喷涂工程塑料的装置及工艺。
背景技术
目前，用于石油、化工、电力等行业的管件，为改变其内表面特性，普遍采用工程塑料如聚苯硫醚、聚醚醚酮、聚酰亚胺及液晶聚合物，对其内圆进行热喷涂；现有管件内圆的热喷涂工艺，多采用将管件加热、离心式喷涂工程塑料粉末、炉内加热重融、冷却至室温的方式，该工艺的缺点为：1）与喷涂合金粉末不同，工程塑料粉末较轻，喷涂时与工件的附着力较差，导致喷涂层的厚度、致密度无法准确控制，加上加热重融时喷涂层有一定的流动性，这都导致喷涂层的厚度、致密度不均匀，表面粗糙度也无法控制，严重影响喷涂质量，甚至导致大量的废品，增加了产品成本，且加工周期长，生产效率较低。
发明内容
本发明的目的是针对现有技术存在的上述不足，提供一种管件内圆热喷涂工程塑料的装置及工艺，它能有效保证喷涂层厚度和致密度的均匀性，并提高表面光洁度，大幅提高喷涂质量，降低产品成本，且生产效率较高。
为达到上述目的，本发明的一种管件内圆热喷涂工程塑料的装置，包括支架、通过导轨副设于支架上的安装板、固设于安装板上的减速电机，其特征在于减速电机通过联轴器与管件相连，在管件内侧间隙的固设一支柱，在支柱上固设有感应加热线圈，在感应加热线圈下方的支柱上固设有数个喷枪，在感应加热线圈上方固设有控制油缸，控制油缸包括固定的缸筒、设于缸筒内的两活塞、设于缸筒中部的伸出油口及位于缸筒两端的两缩回油口，两活塞均联有各自的活塞杆，两活塞杆均固联一弧形压板，两弧形压板位于管件的内侧；
适用于上述管件内圆热喷涂工程塑料装置的工艺，所述以下步骤：A）对管件内圆除油；B）对管件内圆喷砂；C）将管件上端与联轴器连接，感应加热线圈、两弧形压板、数个喷枪置于管件内侧，减速电机与起吊装置相连；D）起吊装置将减速电机下放，减速电机及安装板沿导轨副下行，同时减速电机转动、感应加热线圈通电，管件先经过感应加热线圈加热、再由下方的喷枪将工程塑料粉末喷于所需的管件内圆上，使得工程塑料粉末粘附于受热的所需管件内圆上，起吊装置停止下放；E)起吊装置将减速电机上提，同时减速电机转动、感应加热线圈通电及对控制油缸的伸出油口供油、两活塞杆伸出，先对工程塑料粉末加热至熔融温度，再由两弧形压板对旋转管件内圆上的熔融工程塑料实行挤压；
本发明通过减速电机带动管件旋转可保证加热、喷涂及挤压的均匀性；通过控制两活塞杆伸出的预定位置，使得两弧形压板与管件保持相同的径向间隙，即使在喷涂时涂层的厚度、致密度不一致，在挤压时可对熔融的工程塑料重新塑形，有效保证喷涂层厚度和致密度的均匀性，并提高致密度，不仅可消除熔融工程塑料的流动性对涂层质量的影响，并提高表面光洁度，大幅提高喷涂质量，减少废品率，降低产品成本；且管件在上下行一次往复过程中完成加工，为即时加热、自然冷却，加工周期短，生产效率较高；
作为本发明的进一步改进，所述管件外侧设有回收管，回收管与收集箱相连；可将喷涂时散落的工程塑料粉末回收、利用；
作为本发明的进一步改进，在管件外固设有导向套；在管件上下移动时防止其摆动；
作为本发明的进一步改进，所述管件上端通过一段过渡工装与联轴器相连；可对整个管件内圆实施热喷涂；
综上所述，本发明能有效保证喷涂层厚度和致密度的均匀性，并提高表面光洁度，大幅提高喷涂质量，降低产品成本，且生产效率较高。
附图说明
图1为本发明的管件内圆热喷涂工程塑料装置的主视图。
图2为图1中控制油缸的放大图。
具体实施方式
下面结合附图对本发明作进一步详细的说明。
如图1、图2所示，本发明的管件内圆热喷涂工程塑料的装置，包括支架1、通过导轨副2设于支架1上的安装板3、固设于安装板3上的减速电机4，减速电机4与联轴器5相连，一管件6上端通过一段过渡工装7与联轴器5相连，过渡工装7的内径大于管件6的内径并与管件6焊接，所述管件6外侧设有回收管19，回收管19与收集箱20相连；在管件6外固设有导向套21；在管件6内侧间隙的固设一支柱8，支柱8与回收管19相连，在支柱8上固设有感应加热线圈9，在感应加热线圈9下方的支柱8上固设有数个喷枪10，在感应加热线圈9上方通过绝缘支架11固设有控制油缸12，控制油缸12包括通过绝缘支架11固定的缸筒13、设于缸筒13内的两活塞14、设于缸筒13中部的伸出油口15及位于缸筒两端的两缩回油口16，两活塞14均联有各自的活塞杆17，两活塞杆17均固联各自的弧形压板18，两弧形压板18对称位于管件6的内侧；过渡工装7的高度大于感应加热线圈9加控制油缸12的高度；
本发明适用于上述管件内圆热喷涂工程塑料装置的工艺，所述以下步骤：A）对管件6内圆除油；B）对管件6内圆喷砂；C）将管件6上端通过过渡工装7与联轴器5连接，感应加热线圈9、两弧形压板18、数个喷枪10置于管件6内侧，减速电机4与起吊装置（如行车，未示出）相连；D）起吊装置将减速电机4下放，减速电机4及安装板3沿导轨副2下行，同时减速电机4转动、感应加热线圈9通电，管件6先经过感应加热线圈9加热、再由下方的喷枪10将工程塑料粉末（如聚苯硫醚、聚醚醚酮、聚酰亚胺等）喷于整个管件6内圆上，使得工程塑料粉末粘附于受热的管件6内圆上，起吊装置停止下放；E)起吊装置将减速电机4上提，同时减速电机4转动、感应加热线圈通电9及对控制油缸12的伸出油口15供油、两活塞杆17伸出，先由被感应加热的管件6内壁对工程塑料粉末加热至熔融温度，再由两弧形压板18对旋转管件6内圆上的熔融工程塑料实行挤压；
本发明通过减速电机4带动管件6旋转可保证加热、喷涂及挤压的均匀性，且通过感应加热可快速达到热喷涂的温度（均低于300℃）；通过两活塞杆17的最大行程控制其伸出到预定位置，使得两弧形压板18与管件6保持相同的径向间隙，即使在喷涂时涂层的厚度、致密度不一致，在挤压时可对熔融的工程塑料重新塑形，有效保证喷涂层厚度和致密度的均匀性，并提高致密度，不仅可消除熔融工程塑料的流动性对涂层质量的影响，并提高表面光洁度，大幅提高喷涂质量，减少废品率，降低产品成本；且管件6在上下行一次往复过程中完成加工，为即时加热、自然冷却，加工周期短，生产效率较高；
本发明不限于上述实施方式，但只要采用本申请权利要求1或5所述的技术方案，均落入本发明的保护范围。
Claims (8)
1.一种管件内圆热喷涂工程塑料的装置，包括支架、通过导轨副设于支架上的安装板、固设于安装板上的减速电机，其特征在于减速电机通过联轴器与管件相连，在管件内侧间隙的固设一支柱，在支柱上固设有感应加热线圈，在感应加热线圈下方的支柱上固设有数个喷枪，在感应加热线圈上方固设有控制油缸，控制油缸包括固定的缸筒、设于缸筒内的两活塞、设于缸筒中部的伸出油口及位于缸筒两端的两缩回油口，两活塞均联有各自的活塞杆，两活塞杆均固联一弧形压板，两弧形压板位于管件的内侧。
2.如权利要求1所述的一种管件外圆热喷涂工程塑料的装置，其特征在于所述管件外侧设有回收管，回收管与收集箱相连。
3.如权利要求1或2所述的一种管件外圆热喷涂工程塑料的装置，其特征在于在管件外固设有导向套。
4.如权利要求3所述的一种管件外圆热喷涂工程塑料的装置，其特征在于所述管件上端通过一段过渡工装与联轴器相连。
5.用于如权利要求1所述一种管件内圆热喷涂工程塑料装置的工艺，包括以下步骤：A）对管件内圆除油；B）对管件内圆喷砂；C）将管件上端与联轴器连接，感应加热线圈、两弧形压板、数个喷枪置于管件内侧，减速电机与起吊装置相连；其特征在于还包括：D）起吊装置将减速电机下放，减速电机及安装板沿导轨副下行，同时减速电机转动、感应加热线圈通电，管件先经过感应加热线圈加热、再由下方的喷枪将工程塑料粉末喷于所需的管件内圆上，使得工程塑料粉末粘附于受热的所需管件内圆上，起吊装置停止下放；E)起吊装置将减速电机上提，同时减速电机转动、感应加热线圈通电及对控制油缸的伸出油口供油、两活塞杆伸出，先对工程塑料粉末加热至熔融温度，再由两弧形压板对旋转管件内圆上的熔融工程塑料实行挤压。
6.如权利要求5所述的一种管件外圆热喷涂工程塑料的工艺，其特征在于在所述管件外侧设置回收管，将回收管与收集箱相连，将喷涂时散落的工程塑料粉末回收、利用。
7.如权利要求5或6所述的一种管件外圆热喷涂工程塑料的工艺，其特征在于在管件外固定设置导向套，在管件上下移动时防止其摆动。
8.如权利要求7所述的一种管件外圆热喷涂工程塑料的工艺，其特征在于将所述管件上端通过一段过渡工装与联轴器连接，可对整个管件内圆实施热喷涂及挤压。
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| CN114798308A (zh) * | 2022-05-21 | 2022-07-29 | 南通辉森胶粘科技有限公司 | 一种玻璃纤维自粘胶带生产用热熔胶涂覆工艺 |
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| CN105363653B (zh) | 2017-11-10 |
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