共查询到19条相似文献,搜索用时 781 毫秒
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介绍HCC1000型数控高压清洗机工作原理与结构组成。详细介绍了清洗头设计中的难点:密封件的设计、伺服分度结构的设计及旋转喷嘴的设计。实践证明,所设计的清洗头去除毛刺效果较好。 相似文献
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高压清洗是将药剂在一定温度下,以一定的压力作用于工件表面,使工件表面的油污、粘附物及轻微氧化物得以清除,达到涂装前的要求.该技术应用于涂装领域,作为工件的前处理具有经济、实用、高效、节能、环保等特点.实践表明经过高压清洗处理的工件,可以取得令人满意的涂装效果. 相似文献
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结合某钢厂热镀锌机组光整机工作辊清洁装置的改造项目,分析了刷辊和高压水清洗装置的特点,并对高压水清洗装置从设备组成、技术说明、自动控制等几方面进行了详细说明。通过实际生产数据,验证了高压水清洗装置的实用性、可靠性及先进性。 相似文献
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机械零件毛刺去除工艺现状 总被引:1,自引:0,他引:1
介绍机械零件常用去毛刺方法,如电化学去毛刺、热能去毛刺、挤压珩磨去毛刺、磁力研磨去毛刺、水喷射去毛刺、磨料流去毛刺、激光去毛刺、超声波去毛刺、化学去毛刺等方法,介绍了这些方法的原理及特点. 相似文献
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再制造清洗是再制造工艺流程中极为重要的一环。随着再制造向高端装备领域扩展、向绿色制造目标推进,对再制造清洗提出了低污染排放、环境友好、在位无残留清洗等高要求。以高压水射流、冰粒射流、干冰射流等为代表的高能束射流清洗方法,具有低外来物、低污染排放、低加工损伤等特点,满足绿色再制造清洗要求。本文将对3种典型的高能束射流清洗技术,从射流清洗机理、清洗关键技术工艺、典型应用场景等方面,综述3种高能束射流清洗技术的最新技术进展。 相似文献
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再制造清洗是再制造中极为重要的环节,清洗的质量会直接影响再制造产品的质量.油漆是再制造清洗中必不可少的一种污垢类型,相比于其他污垢,具有与基体结合时间长,结合情况复杂,清洗难度大的特点.目前,清洗油漆主要采用传统清洗技术,如酸碱溶液清洗、高温热分解、干喷丸清洗等,而对近几年出现的油漆绿色清洗技术的推广应用不够,并且没有一个系统的整理总结用于指导实际应用.针对这一现状,基于国内外学者对油漆绿色清洗技术的研究成果,首先从油漆的性质方面进行整理,如:油漆与基体的结合情况,油漆表面微观形貌以及主要成分等.然后总结了机械领域常用的绿色油漆清洗技术,如熔盐清洗技术、干冰清洗技术、激光清洗技术、高压水射流清洗技术、湿喷丸清洗技术、超声波清洗技术以及超临界CO2清洗技术,重点阐述了各种清洗技术的油漆清洗机理及优缺点,并以清洗效率为衡量标准,对各种清洗技术进行对比分析,为使用者选择清洗技术提供参考.最后根据现有油漆清洗技术存在的局限性,对清洗技术的发展前景进行了展望,提出了绿色化、复合化和智能化的发展理念,为新型油漆清洗技术的提升以及现有油漆清洗技术改进提供思路,促进清洗技术的进一步发展. 相似文献
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目的 对合金盘条高压磨料水射流除鳞系统进行优化.方法 建立一条合金盘条高压磨料水射流除鳞系统实验装置,研究材质、工作压力、喷嘴数量、移动速度、磨料浓度、靶距等参数对除鳞效果的影响;应用图像处理技术对除鳞效果量化为除净率并加以分析,采用MATLAB软件对系统压力、喷嘴数、移动速度、磨料浓度及靶距对除鳞效果进行拟合分析.结果 设计了年产5000吨合金盘条高压磨料水射流除鳞系统,参数为:额定压力45 MPa、额定流量10 m3/h、最大除鳞速度40 m/min、磨料质量分数35%、靶距20 mm、喷嘴12个.结论 高压磨料水射流除鳞系统能满足合金盘条除鳞的设计要求,应用前景广阔. 相似文献
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J. Foldyna L. Sitek J. Ščučka P. Martinec J. Valíček K. Páleníková 《Journal of Materials Processing Technology》2009,209(20):6174-6180
It is well known that the collision of a high-velocity liquid mass with a solid generates short high-pressure transients which can cause serious damage to the surface and interior of the target material. To take advantage of this fact in the high-speed water jet technology, a special method of the generation of the high-speed pulsating water jet was developed recently and tested extensively under laboratory conditions. The method is based on the generation of acoustic waves by the action of the acoustic transducer on the pressure liquid and their transmission via pressure system to the nozzle. In this paper, results of investigation of the process of interaction of the pulsating jet and the aluminium sample are presented. Aluminium samples were exposed to pulsating jets generated under various operating conditions (such as operating pressure, stand-off distance and excitation amplitude of the acoustic generator). The effects of pulsating water jet impact on the aluminium surface were studied using methods of optical microscopy and image analysis. Topography of the surface created by the action of pulsating jet and characteristics of the surface were measured by the optical surface measuring system. Based on the analysis of obtained results, likely mechanism of the aluminium surface erosion and disintegration by the action of the pulsating water jet is discussed in the paper. 相似文献
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An experimental study of the effect of high-pressure water jet assisted turning (HPWJAT) on the surface integrity 总被引:2,自引:0,他引:2
Malek Habak Jean Lou Lebrun 《International Journal of Machine Tools and Manufacture》2011,51(9):661-669
This study deals with the effect of High-Pressure Water Jet Assisted Turning (HPWJAT) of austenitic stainless steels on chip shape and residual stresses. The machining of the austenitic stainless steels represents several difficulties. Recently, research has shown that the introduction of a high-pressure water jet into the gap between the tool and the chip interface is a very satisfactory method for machining applications. In this article, the effect of a high-pressure water jet, directed into the tool-chip interface, on chip shapes breakage and surface integrity in face turning operations of AISI 316L steel has been investigated. Tests have been carried out with a standard cutting tool. The cutting speeds used were 80 and 150 m/min, with a constant feed rate of 0.1 mm/rev and a constant cutting depth of 1 mm. Three jet pressures were used: 20, 50 and 80 MPa. Residual stress profiles have been analysed using the X-ray diffraction method in both longitudinal and transversal directions. The results show that jet pressure and cutting parameters influence the residual stresses and the chip shapes. Using a high-pressure jet, it is possible to create a well fragmented chip in contrast to the continuous chip formed using dry turning. It is also possible to control the chip shape and increase tool life. When the jet pressure is increased the residual stress at the surface decreases; however it is increased by an increase in cutting speed. It can be concluded that surface residual stresses can be reduced by the introduction of a high-pressure water jet. 相似文献
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为了解决喷嘴的喷孔毛刺去除困难的问题,采用低频振动研磨去毛刺工艺进行去喷孔毛刺实验,由结果可以看出,该工艺方法能显著地去除喷孔的毛刺.且该低频振动研磨系统具有工艺易于实现、成本低且操作简便的特点. 相似文献
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精密零件的微磨料气射流光整加工 总被引:2,自引:0,他引:2
近年来,在非传统去毛刺加工方法中,微磨料气射流去毛刺由于初始成本低、生产效率高、灵活性强、无应力、无热影响区,在精密零件的光整加工中获得了广泛的应用。本文详细介绍了微磨料气射流用于光整加工去毛刺的加工原理、材料去除机理、去毛刺的工艺参数以及对棱边尺寸的影响,并列举了一些微磨料气射流在不同应用领域的加工实例。 相似文献
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水射流冲击压力最佳喷距数值仿真及试验研究 总被引:1,自引:0,他引:1
基于水射流冲击模型,应用Fluent流体分析软件对喷嘴射流冲击力进行数值仿真,得出不同喷距对射流冲击压力的影响。结果表明:在低压连续水射流条件下,出口直径为2 mm的喷嘴在喷距为50 mm时产生的射流冲击压力最大;并通过实验验证射流仿真模型的正确性和有效性。 相似文献