共查询到19条相似文献,搜索用时 93 毫秒
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浅述厌氧胶螺纹锁固防松工艺孙康(江西拖拉机厂,南昌市.330002)一、前言厌氧胶密封粘接因其工艺简单,适应面广,效果显著而广泛地应用于机械行业。现已成为螺纹锁固和密封的重要手段。厌氧胶固化时,能在螺纹缝隙形成一热固性胶层,使螺纹面啮合率达百分之百而... 相似文献
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螺纹锁固用厌氧胶的评价指标和应用特点 总被引:1,自引:0,他引:1
介绍了螺纹锁固用厌氧胶的密封原理,总结了厌氧胶的常用评价指标(扭矩、固化速率、耐热温度和黏度等)及现有厌氧胶的种类与性能(包括乐泰厌氧胶、GY系列厌氧胶、J系列厌氧胶和其他厌氧胶产品),并讨论了厌氧胶的清除技术(包括螺纹件的拆卸、残余厌氧胶的清除等)。最后展望了厌氧胶的发展方向。 相似文献
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以天山公司螺纹锁固胶可赛新~?系列产品为例,测试了厌氧胶的耐扭转疲劳性能,模拟了厌氧胶实际使用过程中因受到扭转力而导致锁紧失效现象,进而为客户选择合适的胶粘剂提供依据。 相似文献
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中国烟台引进美国LOCTITE厌氧胶技术生产的乐泰厌氧胶,经我们在设备修理中多次使用,收到较好的效果。乐泰厌氧胶种类很多,乐泰(中国)厌氧胶按其作用不同可分为: 1、螺蚊锁固胶,用于螺纹防震防松。 2、密封胶,可以代替纸垫、垫片等起密封作用。 3、机件固持胶,如轴承、轴承磨损,用固持胶填补和固持磨损造成的间隙和松动。 4、粘接和密封其它材料,如各类金属、玻璃、陶瓷、磁铁等。我们首次使用的乐泰厌氧胶是609固持胶。我公司生产车间在检修5吨天车故障时,发现电机轴与滚动轴承配合部位严重磨损, 相似文献
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预涂型厌氧胶在汽车生产中的应用 总被引:1,自引:0,他引:1
1 前言对于螺纹紧固件 ,工程界人士一直都致力于两方面的研究。其一是提高其承载能力 ;其二是防松。在化学锁固与密封技术出现之前 ,人们曾采用多种防松设计方案 ,如止动垫片、开口销、螺纹过盈或过盈变形 ,以及加弹簧垫圈和使用内阻尼螺母等。这些机械方法都是以增加零部件 ,提高加工精度为基础的 ,结果导致成本的增加。况且仍无法从根本上制止松动 ,更无法避免螺纹处的渗漏 ,而化学锁固与密封技术的出现 ,很好地解决了上述难题。2 厌氧胶密封、锁固原理在螺纹连接过程中 ,装配拧紧力矩T由预紧力产生的扭矩T1、螺纹面磨擦扭矩T2 、螺… 相似文献
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汽车用厌氧螺纹锁固胶扭矩的影响因素研究 总被引:1,自引:0,他引:1
介绍了汽车用厌氧型螺纹锁固胶的固化机理,并以天山公司产品为例介绍了厌氧型螺纹锁固胶扭矩的影响因素,包括固化温度、固化时间、螺栓表面状态、螺栓类型、间隙等等,并与国外同类产品做了对比试验, 相似文献
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M.A Martínez M. PantojaJ. Abenojar J.C. Del RealF. Velasco 《International Journal of Adhesion and Adhesives》2011,31(6):429-433
The main aim of this work is to study the influence of the geometry of screws on torsion tests when they are retained with adhesives. The geometry of different types of screw threads has been studied, measuring theoretical and real length values to determine the stress undergone by the thread when tightened and/or retained by anaerobic adhesives. Three kinds of joints are subjected to a torsion test to determine their loosening torque. According to their torque, joint loosening load as well as generated stress can be calculated. When tightened, the real contact area is observed to be lower than the theoretical area, and real stresses are therefore higher than the theoretical ones. The same can be observed when only adhesive is applied; the real bonded area is lower than the theoretical, while higher real stresses than theoretical are observed. When adhesive and tightening are combined, the stress due to the influence of the adhesive is calculated, since the strength ratio attributable to either friction or adhesion remains unknown. These can only be determined through the measurement of real thread dimensions. 相似文献
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耐高温型结构厌氧胶黏剂的研究进展 总被引:2,自引:0,他引:2
本文综述了耐高温厌氧胶的发展状况,根据其单体的特点将耐高温厌氧胶进行分类,并着重阐述了耐高温结构厌氧胶的单体合成及以该单体配制成厌氧胶的性能特点。 相似文献
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Y. Okamoto 《The Journal of Adhesion》1990,32(4):227-235
Anaerobic adhesives are single-component acrylic adhesives which cure rapidly at or below room temperature when air is excluded, but they remain in an uncured stage over a long time when they are exposed to an adequate supply of air. Thus, anaerobic adhesives are widely used in retaining compounds for nuts and bolts, in sealants, and for impregnation. Recently, anaerobic adhesives have also been used in electrical and electronic applications because of their fast room temperature cure capability and their convenience.1 相似文献
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Y. Okamoto 《The Journal of Adhesion》1990,32(4):237-244
Anaerobic adhesives are single-component acrylic adhesives which cure rapidly at or below room temperature when air is excluded, but they remain in an uncured stage over a long time when they are exposed to an adequate supply of air. Thus, anaerobic adhesives are widely used in retaining compounds for nuts and bolts, in sealants, and for impregnation. Recently, anaerobic adhesives have also been used in electrical and electronic applications because of their fast room temperature cure capability and their convenience. 相似文献
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Y. Okamoto 《The Journal of Adhesion》2013,89(4):227-235
Anaerobic adhesives are single-component acrylic adhesives which cure rapidly at or below room temperature when air is excluded, but they remain in an uncured stage over a long time when they are exposed to an adequate supply of air. Thus, anaerobic adhesives are widely used in retaining compounds for nuts and bolts, in sealants, and for impregnation. Recently, anaerobic adhesives have also been used in electrical and electronic applications because of their fast room temperature cure capability and their convenience.1 相似文献