CN102995099A - 轴承保持架的电解抛光方法 - Google Patents
轴承保持架的电解抛光方法 Download PDFInfo
- Publication number
- CN102995099A CN102995099A CN2012104754583A CN201210475458A CN102995099A CN 102995099 A CN102995099 A CN 102995099A CN 2012104754583 A CN2012104754583 A CN 2012104754583A CN 201210475458 A CN201210475458 A CN 201210475458A CN 102995099 A CN102995099 A CN 102995099A
- Authority
- CN
- China
- Prior art keywords
- electrochemical polishing
- workpiece
- cleaning
- electrolytic
- machined
- Prior art date
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 33
- 239000011901 water Substances 0.000 claims abstract description 38
- 229910001868 water Inorganic materials 0.000 claims abstract description 38
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 239000003921 oils Substances 0.000 claims abstract description 9
- 239000003792 electrolytes Substances 0.000 claims abstract description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound 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OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001485 phosphoric acid Substances 0.000 claims abstract description 6
- 229910000122 chromium trioxide Inorganic materials 0.000 claims abstract description 5
- WGLPBDUCMAPZCE-UHFFFAOYSA-N trioxochromium Chemical compound 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Abstract
本发明涉及一种轴承保持架的电解抛光方法，包括准备步骤、电解抛光、搅拌电解液、冷水清洗、钝化、热水清洗、干燥、防锈，电解液采用磷酸、水和铬酐按照体积比8：4：1来配制，电解液温度控制在40℃以下。所述电解抛光步骤的电流密度为35安倍/平方分米，工作电压在8～10伏，电解抛光机的阴极与被加工工件的距离为5～10毫米，电解抛光时间为90秒。所述准备步骤包括：电解液的制备并加入电解容器、铅板置于电解容器中并与电解抛光机的阴极连接、被加工工件的准备，被加工工件的准备步骤包括：被加工工件除油清洗、热水清洗、冷水清洗、上挂具、电解抛光机阳极与被加工工件连接。本发明装夹及上下料方便，占地面积小，成本低，毛刺消除效果好，劳动强度显著降低，省时省力。
Description
轴承保持架的电解抛光方法
技术领域
[0001] 本发明专利涉及一种轴承保持架的电解抛光方法，特别是一种特型短圆柱滚子轴承保持架的电解抛光方法。
背景技术
[0002] 轴承（bearing)是一种应用在转动机构上，用来支撑，减少摩擦以及承受负载的部件。该轴承是特别专门为空调压缩机而设计，由于截面小，承载能力高，变形小，适用高速运行、低振动和静音的场合，同时该产品径向承载荷能力大，滚子与滚道呈线性接触，适用于承受冲击负荷，寿命长。该产品因其结构简单，外形尺寸紧凑，强度大，承载能力较强，额定转速高，精度高，因而广泛应用于空调压缩机。目前该特型产品大多采用进口或一小部分国产，其中国产特型保持架的抛光性能不太稳定而影响轴承质量，存在的缺点是：1.目前使用于空调压缩机的该特型短圆 柱滚子轴承保持架，全部采用传统的机械方法去除毛刺，因此有些较大的毛刺和直角转角处的毛刺难以全部根除，导致保持架的精度不闻。
[0003] 2.目前该特型的轴承保持架，在消除毛刺的过程中由于采用传统的机械方法，导致难以根除的毛刺将严重影响滚动体的旋转精度，并存在划伤滚动体表面的风险，而且工作面的光洁度很不理想，油膜难以形成，不利于轴承的振动和噪音水平，更不足以保证空调压缩机场合所需的低噪音水平和旋转性能。
[0004] 3.目前该特型的保持架机械抛光方法占地面积较大，工人劳动强度很高，成本较高，不易实现经济效益。
[0005] 发明内容
本发明专利所要解决的技术问题是克服现有机械抛光技术中所存在的上述不足，而提供一种新型的轴承保持架的电解抛光方法。
[0006] 本发明专利解决上述技术问题所采用的技术方案是：一种轴承保持架的电解抛光方法，包括依次进行的以下步骤：准备步骤、电解抛光、搅拌电解液、冷水清洗、钝化、热水清洗、干燥、防锈，所述电解抛光的电解液采用磷酸、水和铬酐按照体积比为8 ：4 ：1来配制，电解液温度控制在40°C以下。
[0007] 本发明所述电解抛光步骤的电流密度为35安倍/平方分米，工作电压在8〜10伏，电解抛光机的阴极与被加工工件的距离为5〜10毫米，电解抛光时间为90秒。
[0008] 本发明所述准备步骤包括：电解液的制备并加入电解容器、铅板置于电解容器中并与电解抛光机的阴极连接、被加工工件的准备，其中被加工工件的准备步骤按顺序完成下述步骤：被加工工件除油清洗、热水清洗、冷水清洗、上挂具、电解抛光机的阳极与被加工工件连接。
[0009] 本发明所述冷水清洗时间为60秒；所述钝化采用苯并三氮唑与清水配制的钝化液，钝化液按1. 85 ：10的体积比，钝化时间为60秒；所述热水清洗时间为60秒；所述干燥时间为60秒；所述防锈采用符合GB/T4879规定的，以清水为稀释剂的防锈材料，防锈方法为将工件放入防锈油中60秒，然后从中取出并放入存放箱内即可。
[0010] 本发明电解抛光时控制电流密度、抛光时间、电压等来达到抛光，并通过一系列的工艺流程来达到抛光的目的。该抛光工艺不仅能消除轴承保持架中残留的毛刺，同时轴承保持架的自身润滑性能得到了改善，色差问题也一并消除。本发明装夹及上下料很方便，占地面积小，相比较传统的机械抛光去除毛刺而言，成本降低，轴承保持架中的毛刺一次得到全部消除，特别是一些直角转角处的毛刺都能轻易的消除，且不会产生二次毛刺，达到很好的精准度，且劳动强度显著降低，省时省力。
[0011] 本发明具有以下优点和效果：①轴承保持架的自润滑性能得到大大提高。②轴承保持架光洁度大大提高，从而能保证成套轴承的旋转稳定性和旋转精度。③轴承的噪音水平大大提高；④实现良好均匀润滑，保证低振动和静音。⑤占地面小，降低成本，工人劳动强度大大降低；_轴承保持架无色差。
具体实施方式
[0012] 本发明专利实施轴承保持架的电解抛光方法，采用的设备包括电解抛光机一台、冷却水循环池，以及电解液(主要为磷酸液体）足量、皂化清洗液足量（除油清洗环节)、热水足量(热水清洗环节)、冷水足量(冷水清洗环节)、钝化液足量(钝化环节)、防锈液足 量(防锈环节）等。
[0013] 本发明实施例轴承保持架的电解抛光方法包括以下步骤：准备步骤一电解抛光一搅拌电解液一冷水清洗（60s)—钝化(用体积比为1. 85 ：10的苯并三氮唑与清水配制的钝化液，且钝化时间为60s)—热水清洗（60s)—干燥（60s) —防锈(符合GB/T4879规定的，以清水为稀释剂的防锈材料）（60s)。
[0014] 本实施例所述电解抛光步骤可包括开始电解抛光，设定抛光时间（当需要重新设定抛光时间时需要该步骤，本实施例初始设定抛光时间为90s，按照初始设定抛光时间进行抛光可以不要该步骤)。
[0015] 本实施例所述准备步骤包括：电解液的制备并加入电解容器、铅板置于电解容器中并与电解抛光机的阴极连接、被加工工件的准备，电解液的制备并加入电解容器、铅板置于电解容器中并与电解抛光机的阴极连接、被加工工件的准备这三个步骤在准备步骤中的次序无关紧要，只需在电解抛光步骤之前完成即可。其中被加工工件的准备步骤按顺序完成下述步骤：被加工工件(轴承保持架）除油清洗一热水清洗一冷水清洗一上挂具(被加工工件悬挂在挂具上并使得电解抛光机的阴极(铅板)与被加工工件的距离为5〜10mm)—电解抛光机的阳极与被加工工件连接。
[0016] 本发明实施例制备好的电解液加入电解容器后应保证被加工工件能整体悬挂于电解液中并通常处于液体的中间位置。电解液采用磷酸、水和铬酐进行配比（体积比为8 ：4 :1)。
[0017] 本实施例工作电流、工作电压及温度：电流密度在35A/dm??时的效果为最佳，在380v的工作电压下通过变压后达到8〜IOv的工作电压即可达到最佳效果，工作时的电解液温度控制在40°C以下时效果最好，超过此温度时应打开冷却系统进行冷却，使工作温度始终控制在40°C以下。
[0018] 本实施例被加工的工件为黄铜件，因此电解液按磷酸、水和铬酐的配合比例分别为8 :4 :1来确定。设定好合理的电解工艺(除油清洗一热水清洗一冷水清洗一上挂具一电 解抛光一设定抛光时间一搅拌电解液一冷水清洗一钝化一热水清洗一干燥一防锈，从而将被加工工件中各个面包括转角处的毛刺均去除干净，而且被加工工件工作面的光洁度也得到了提高。为轴承质量的提高奠定了基础，从而实现了轴承的低振动和静音，也节约了成本，体现出了经济效益。
Claims (4)
1. 一种轴承保持架的电解抛光方法，其特征在于包括依次进行的以下步骤：准备步骤、电解抛光、搅拌电解液、冷水清洗、钝化、热水清洗、干燥、防锈，所述电解抛光的电解液采用磷酸、水和铬酐按照体积比为8 :4 :1来配制，电解液温度控制在40°C以下。
2.根据权利要求1所述的电解抛光方法，其特征在于：所述电解抛光步骤的电流密度为35安倍/平方分米，工作电压在8〜10伏，电解抛光机的阴极与被加工工件的距离为5〜10毫米，电解抛光时间为90秒。
3.根据权利要求2所述的电解抛光方法，其特征在于：所述准备步骤包括：电解液的制备并加入电解容器、铅板置于电解容器中并与电解抛光机的阴极连接、被加工工件的准备，其中被加工工件的准备步骤按顺序完成下述步骤：被加工工件除油清洗、热水清洗、冷水清洗、上挂具、电解抛光机的阳极与被加工工件连接。
4.根据权利要求3所述的电解抛光方法，其特征在于：所述冷水清洗时间为60秒；所述钝化采用苯并三氮唑与清水配制的钝化液，钝化液按1. 85 ：10的体积比，钝化时间为60秒；所述热水清洗时间为60秒；所述防锈为将工件放入防锈油中60秒。
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