CN109251658A - 一种紧固螺栓的防磨处理工艺 - Google Patents
一种紧固螺栓的防磨处理工艺 Download PDFInfo
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Abstract
本发明公开了一种紧固螺栓的防磨处理工艺，在螺栓表面喷涂第一层防磨涂料和第二层防磨涂料，第一层防磨涂料包括以下按重量份计的各组分：环氧树脂35~43份、碳化钛颗粒21~26份、WC颗粒17~23份、氧化镍11~18份和硬化剂13~16份，第二层防磨涂料包括以下按重量份计的各组分：耐磨陶瓷颗粒22~34份、聚苯硫醚树脂21~25份、聚四氟乙烯18~27份、纳米氧化钙13~17份、氧化锌11~16份、固化剂8~10份、分散剂2~9份和滑石粉3~6份。本发明使用两层防磨涂料，可大大提高螺栓的耐磨性、防腐蚀性，且提高了螺栓的使用寿命。
Description
技术领域
本发明属于螺栓技术领域，具体涉及一种紧固螺栓的防磨处理工艺。
背景技术
螺栓是配用螺母的圆柱形带螺纹的紧固件，由头部和螺杆两部分组成的一类紧固件，需与螺母配合，用于紧固连接两个带有通孔的零件，这种连接形式称螺栓连接。安装在工件上的螺栓在使用过程中下必不可免会被磨损，长时间的磨损会使螺栓松动，影响工件的正常工作，减少了螺栓的使用寿命，鉴于此，有必要对传统的紧固螺栓用防磨涂料做出改进。
发明内容
为解决现有技术的不足，本发明的目的在于提供一种可大大提高螺栓的耐磨性、防腐蚀性，且提高了螺栓的使用寿命的紧固螺栓的防磨处理工艺。
为了实现上述目标，本发明采用如下的技术方案：
一种紧固螺栓的防磨处理工艺，在螺栓表面喷涂第一层防磨涂料和第二层防磨涂料，第一层防磨涂料包括以下按重量份计的各组分：环氧树脂35~43份、碳化钛颗粒21~26份、WC颗粒17~23份、氧化镍11~18份和硬化剂13~16份，第二层防磨涂料包括以下按重量份计的各组分：耐磨陶瓷颗粒22~34份、聚苯硫醚树脂21~25份、聚四氟乙烯18~27份、纳米氧化钙13~17份、氧化锌11~16份、固化剂8~10份、分散剂2~9份和滑石粉3~6份。
优选地，前述硬化剂包括以下按重量份计的各组分：二异氰酸酯13~27份、甲基丙烯酸15~19份和氧化铝9~16份。
再优选地，前述分散剂为丙烯酸酯类分散剂或马来酸酯类分散剂。
更优选地，前述固化剂为聚酰胺固化剂或间苯二胺固化剂。
进一步优选地，前述的一种紧固螺栓的防磨处理工艺，包括如下处理步骤：
S1、预处理：用钢丝或喷砂将螺栓表面清洗干净，并用溶剂擦去油脂，再用清水洗净、烘干后备用；
S2、制备硬化剂：将二异氰酸酯、甲基丙烯酸和氧化铝依次投入反应釜中，升高反应温度，持续搅拌，制得硬化剂；
S3、制备第一层防磨涂料：将环氧树脂、碳化钛颗粒和WC颗粒依次投入反应釜中，升高反应温度，持续搅拌，边搅拌边缓慢加入硬化剂，制得第一层防磨涂料；
S4、制备第二层防磨涂料：称量好各材料，将耐磨陶瓷颗粒、聚苯硫醚树脂、聚四氟乙烯、分散剂和滑石粉投入反应釜中，升高反应釜温度，并持续搅拌15~20min，再依次加入纳米氧化钙、氧化锌和固化剂，继续搅拌1~1.5h，得到第二层防磨涂料；
S5、涂覆：将螺栓放入预热炉中进行预热，然后在螺栓表面涂覆第一层防磨涂料，干燥后再涂覆第二层防磨涂料，烘干后即得防磨螺栓产品。
优选地，前述步骤S2中，反应温度为55~70℃，搅拌速度为200~350r/min，搅拌时间为25~35min。
再优选地，前述步骤S3中，反应温度为85~110℃，搅拌速度为500~750r/min，搅拌时间为1.5~2.5h。
更优选地，前述步骤S4中，反应温度为70~90℃，搅拌速度为400~650r/min。
本发明的有益之处在于：
（1）第一层防腐涂料中的氧化镍可以使碳化钛颗粒和WC颗粒更好的被包在环氧树脂内，与由二异氰酸酯、甲基丙烯酸和氧化铝制备的硬化剂混合后制得的防磨涂料具有优异的耐磨性，且黏度高、固化收缩率低；
（2）第二层防腐涂料可有效提高螺栓的耐磨性能，且具有一定的化学惰性，在酸性环境下不易被腐蚀，可以很好的保护螺栓；
（3）两层防磨涂料的联合使用，可大大提高螺栓的耐磨性、防腐蚀性，且提高了螺栓的使用寿命。
具体实施方式
以下结合具体实施例对本发明作具体的介绍。
实施例1
一种紧固螺栓的防磨处理工艺，在螺栓表面喷涂第一层防磨涂料和第二层防磨涂料，第一层防磨涂料包括以下按重量份计的各组分：环氧树脂35份、碳化钛颗粒21份、WC颗粒17份、氧化镍11份和硬化剂13份，硬化剂包括以下按重量份计的各组分：二异氰酸酯13份、甲基丙烯酸15份和氧化铝9份。
第二层防磨涂料包括以下按重量份计的各组分：耐磨陶瓷颗粒22份、聚苯硫醚树脂21份、聚四氟乙烯18份、纳米氧化钙13份、氧化锌11份、聚酰胺固化剂8份、丙烯酸酯类分散剂2份和滑石粉3份。
一种紧固螺栓的防磨处理工艺，包括如下处理步骤：
S1、预处理：用钢丝或喷砂将螺栓表面清洗干净，并用溶剂擦去油脂，再用清水洗净、烘干后备用；
S2、制备硬化剂：将二异氰酸酯、甲基丙烯酸和氧化铝依次投入反应釜中，升高反应温度为55℃，持续搅拌，搅拌速度为200r/min，搅拌时间为25min，制得硬化剂；
S3、制备第一层防磨涂料：将环氧树脂、碳化钛颗粒和WC颗粒依次投入反应釜中，升高反应温度为85℃，持续搅拌，边搅拌边缓慢加入硬化剂，搅拌速度为500r/min，搅拌时间为1.5h，制得第一层防磨涂料；
S4、制备第二层防磨涂料：称量好各材料，将耐磨陶瓷颗粒、聚苯硫醚树脂、聚四氟乙烯、分散剂和滑石粉投入反应釜中，升高反应釜温度为70℃，并持续搅拌15min，搅拌速度为400r/min，再依次加入纳米氧化钙、氧化锌和固化剂，继续搅拌1h，得到第二层防磨涂料；
S5、涂覆：将螺栓放入预热炉中进行预热，然后在螺栓表面涂覆第一层防磨涂料，干燥后再涂覆第二层防磨涂料，烘干后即得防磨螺栓产品。
实施例2
一种紧固螺栓的防磨处理工艺，在螺栓表面喷涂第一层防磨涂料和第二层防磨涂料，第一层防磨涂料包括以下按重量份计的各组分：环氧树脂43份、碳化钛颗粒26份、WC颗粒23份、氧化镍18份和硬化剂16份，硬化剂包括以下按重量份计的各组分：二异氰酸酯27份、甲基丙烯酸19份和氧化铝16份。
第二层防磨涂料包括以下按重量份计的各组分：耐磨陶瓷颗粒34份、聚苯硫醚树脂25份、聚四氟乙烯27份、纳米氧化钙17份、氧化锌16份、间苯二胺固化剂10份、马来酸酯类分散剂9份和滑石粉6份。
一种紧固螺栓的防磨处理工艺，包括如下处理步骤：
一种紧固螺栓的防磨处理工艺，包括如下处理步骤：
S1、预处理：用钢丝或喷砂将螺栓表面清洗干净，并用溶剂擦去油脂，再用清水洗净、烘干后备用；
S2、制备硬化剂：将二异氰酸酯、甲基丙烯酸和氧化铝依次投入反应釜中，升高反应温度为70℃，持续搅拌，搅拌速度为350r/min，搅拌时间为35min，制得硬化剂；
S3、制备第一层防磨涂料：将环氧树脂、碳化钛颗粒和WC颗粒依次投入反应釜中，升高反应温度为110℃，持续搅拌，边搅拌边缓慢加入硬化剂，搅拌速度为750r/min，搅拌时间为2.5h，制得第一层防磨涂料；
S4、制备第二层防磨涂料：称量好各材料，将耐磨陶瓷颗粒、聚苯硫醚树脂、聚四氟乙烯、分散剂和滑石粉投入反应釜中，升高反应釜温度为90℃，并持续搅拌20min，搅拌速度为650r/min，再依次加入纳米氧化钙、氧化锌和固化剂，继续搅拌1.5h，得到第二层防磨涂料；
S5、涂覆：将螺栓放入预热炉中进行预热，然后在螺栓表面涂覆第一层防磨涂料，干燥后再涂覆第二层防磨涂料，烘干后即得防磨螺栓产品。
实施例3
一种紧固螺栓的防磨处理工艺，在螺栓表面喷涂第一层防磨涂料和第二层防磨涂料，第一层防磨涂料包括以下按重量份计的各组分：环氧树脂39份、碳化钛颗粒23份、WC颗粒20份、氧化镍15份和硬化剂15份，硬化剂包括以下按重量份计的各组分：二异氰酸酯20份、甲基丙烯酸18份和氧化铝12份。
第二层防磨涂料包括以下按重量份计的各组分：耐磨陶瓷颗粒28份、聚苯硫醚树脂23份、聚四氟乙烯22份、纳米氧化钙15份、氧化锌13份、间苯二胺固化剂9份、丙烯酸酯类分散剂5份和滑石粉5份。
一种紧固螺栓的防磨处理工艺，包括如下处理步骤：
S1、预处理：用钢丝或喷砂将螺栓表面清洗干净，并用溶剂擦去油脂，再用清水洗净、烘干后备用；
S2、制备硬化剂：将二异氰酸酯、甲基丙烯酸和氧化铝依次投入反应釜中，升高反应温度为60℃，持续搅拌，搅拌速度为300r/min，搅拌时间为30min，制得硬化剂；
S3、制备第一层防磨涂料：将环氧树脂、碳化钛颗粒和WC颗粒依次投入反应釜中，升高反应温度为100℃，持续搅拌，边搅拌边缓慢加入硬化剂，搅拌速度为600r/min，搅拌时间为2h，制得第一层防磨涂料；
S4、制备第二层防磨涂料：称量好各材料，将耐磨陶瓷颗粒、聚苯硫醚树脂、聚四氟乙烯、分散剂和滑石粉投入反应釜中，升高反应釜温度为80℃，并持续搅拌18min，搅拌速度为500r/min，再依次加入纳米氧化钙、氧化锌和固化剂，继续搅拌1.2h，得到第二层防磨涂料；
S5、涂覆：将螺栓放入预热炉中进行预热，然后在螺栓表面涂覆第一层防磨涂料，干燥后再涂覆第二层防磨涂料，烘干后即得防磨螺栓产品。
通过实验对比可知，本发明处理过的螺栓具有优异的耐磨性、防腐蚀性和使用强度。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，上述实施例不以任何形式限制本发明，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本发明的保护范围内。
Claims (8)
1.一种紧固螺栓的防磨处理工艺，其特征在于，在螺栓表面喷涂第一层防磨涂料和第二层防磨涂料，所述第一层防磨涂料包括以下按重量份计的各组分：环氧树脂35~43份、碳化钛颗粒21~26份、WC颗粒17~23份、氧化镍11~18份和硬化剂13~16份，所述第二层防磨涂料包括以下按重量份计的各组分：耐磨陶瓷颗粒22~34份、聚苯硫醚树脂21~25份、聚四氟乙烯18~27份、纳米氧化钙13~17份、氧化锌11~16份、固化剂8~10份、分散剂2~9份和滑石粉3~6份。
2.根据权利要求1所述的一种紧固螺栓的防磨处理工艺，其特征在于，所述硬化剂包括以下按重量份计的各组分：二异氰酸酯13~27份、甲基丙烯酸15~19份和氧化铝9~16份。
3.根据权利要求1所述的一种紧固螺栓的防磨处理工艺，其特征在于，所述分散剂为丙烯酸酯类分散剂或马来酸酯类分散剂。
4.根据权利要求1所述的一种紧固螺栓的防磨处理工艺，其特征在于，所述固化剂为聚酰胺固化剂或间苯二胺固化剂。
5.根据权利要求2所述的一种紧固螺栓的防磨处理工艺，其特征在于，包括如下处理步骤：
S1、预处理：用钢丝或喷砂将螺栓表面清洗干净，并用溶剂擦去油脂，再用清水洗净、烘干后备用；
S2、制备硬化剂：将二异氰酸酯、甲基丙烯酸和氧化铝依次投入反应釜中，升高反应温度，持续搅拌，制得硬化剂；
S3、制备第一层防磨涂料：将环氧树脂、碳化钛颗粒和WC颗粒依次投入反应釜中，升高反应温度，持续搅拌，边搅拌边缓慢加入硬化剂，制得第一层防磨涂料；
S4、制备第二层防磨涂料：称量好各材料，将耐磨陶瓷颗粒、聚苯硫醚树脂、聚四氟乙烯、分散剂和滑石粉投入反应釜中，升高反应釜温度，并持续搅拌15~20min，再依次加入纳米氧化钙、氧化锌和固化剂，继续搅拌1~1.5h，得到第二层防磨涂料；
S5、涂覆：将螺栓放入预热炉中进行预热，然后在螺栓表面涂覆第一层防磨涂料，干燥后再涂覆第二层防磨涂料，烘干后即得防磨螺栓产品。
6.根据权利要求5所述的一种紧固螺栓的防磨处理工艺，其特征在于，所述步骤S2中，反应温度为55~70℃，搅拌速度为200~350r/min，搅拌时间为25~35min。
7.根据权利要求5所述的一种紧固螺栓的防磨处理工艺，其特征在于，所述步骤S3中，反应温度为85~110℃，搅拌速度为500~750r/min，搅拌时间为1.5~2.5h。
8.根据权利要求5所述的一种紧固螺栓的防磨处理工艺，其特征在于，所述步骤S4中，反应温度为70~90℃，搅拌速度为400~650r/min。
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