CN111556934A - 用于制造制动盘的方法、制动盘 - Google Patents
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Abstract
本发明涉及一种用于制造用于机动车的制动盘(1)的方法,其中提供特别是由铸铁或铝制成的基础盘(2),并且该基础盘设有防腐蚀涂层(6)。在此规定,所述防腐蚀涂层(6)通过湿化学法或电镀法施覆。
Description
技术领域
本发明涉及一种用于制造用于机动车的制动盘的方法,其中提供特别是由铸铁或铝制成的基础盘,并且在至少一个表面上设有防腐蚀涂层。
此外,本发明涉及一种用于机动车的制动盘,特别是通过上述方法制造的制动盘,该制动盘具有特别是由铸铁或铝制成的基础盘并且在基础盘的至少一个表面上具有防腐蚀涂层。
背景技术
在传统的制动盘中,尤其是在具有铸铁基础盘的这种制动盘中,为了降低腐蚀倾向,制动盘的表面设有由适合于此的漆构成的防腐蚀涂层。例如,锌粉漆已被证实为有效的漆材料。涂漆通常借助于喷嘴来实施,以便满足对均匀的漆厚度或涂层厚度的要求。在具有冷却通道的通风的制动盘中,由于隔离部和底切部,不能容易地均匀厚地涂层相应的冷却通道中的所有表面。这可能导致,一些位置个别地保持未被上漆。
发明内容
具有权利要求1的特征的根据本发明的方法具有的优点是,通过防腐蚀涂层也可靠地保护冷却通道免受腐蚀倾向。特别地,实现了使该制动盘的有待涂层的表面总体上设有均匀的层厚度。为此,根据本发明规定,防腐蚀涂层通过湿化学法或电镀法施覆。在此,放弃将喷嘴或类似物引入冷却管道中或冷却管道上。相反,制动盘的期望表面总体上被加载以涂层材料,该涂层材料通过在制动盘的至少一个表面上的化学沉积或电镀沉积而均匀地产生期望的防腐蚀涂层。由此以简单且成本低廉的方式方法来确保均匀地制造防腐蚀涂层。
此外优选规定,作为防腐蚀涂层施覆化学的或电镀的镍。镍涂层已经证实为可靠的并且抗磨损的。
替代地,优选作为防腐蚀涂层施覆铬或合金、特别是铬合金。由此,通过化学或电镀涂层法也提供对于制动盘的可靠的防腐蚀保护。
此外优选规定,制动盘设有至少一个冷却通道,并且仅所述至少一个冷却通道设有防腐蚀涂层。由此实现了,制动盘的其他表面,尤其是用作制动面的这种表面,或者例如制动盘的制动盘鼓(Bremsscheibentopf)不被加载或者涂层防腐蚀涂层的所选择的材料。
此外优选地规定,基础盘的至少一个制动面和一个制动鼓或所述至少一个冷却通道在涂层过程之前向外得到密封。由此确保了,在涂层方法期间,基础盘的在至少一个冷却通道之外的其他表面不被加载并且因此也不被涂层。由此以简单的方式和方法实现上述优点。
具有权利要求6的特征的根据本发明的制动盘的特征在于,所述基础盘的至少一个表面具有湿化学或电镀的防腐蚀涂层。由此产生已经提到的优点。其它优点和优选的特征和特征组合尤其从之前的描述以及从权利要求中得出。
附图说明
下面应借助于附图对本发明进行详细解释。为此示出:
图1以简化的图示示出了一种有利的制动盘,并且
图2示出了一种用于制造制动盘的有利的方法。
具体实施方式
图1以简化的部分透视截面图示出了有利的制动盘1。制动盘1具有圆环形的基础盘2,在该基础盘上固定有制动盘鼓3,该制动盘鼓替代地也可以与基础盘2一体式地构造。
基础盘2具有多个集成的冷却通道4,这些冷却通道从制动盘2的内圆周延伸到外圆周。在此,冷却通道4基本上偏离于径向的延伸范围地、尤其是从内向外弯曲地延伸。此外,相邻的冷却通道4在此不同地构造。
基础盘2在本文中由铸铁或铝制成,必要时制造有耐磨层,并且为了避免尤其在冷却通道4的区域中的腐蚀而在冷却通道4的表面5上具有涂层6。特别地,制动盘1的面向冷却通道4的所有表面均设有防腐蚀涂层6。
为了施覆防腐蚀涂层6,使用在图2中简化示出的方法。在第一步骤S1中,提供具有其构成的冷却通道4的基础盘2。在紧随其后的步骤S2中,冷却通道4借助于密封元件向外得到密封。为此,例如在基础盘2的外圆周上安装有如下密封环,该密封环覆盖并且密封冷却通道4的在外圆周上的全部出口。例如在基础盘2的内圆周上进行相应的设置。
接下来,在紧随其后的步骤S3中,通过湿化学法或电镀法为冷却通道4的表面5设有防腐蚀涂层6。为此,首先将液体引入到冷却通道4中,直至所述冷却通道完全地用液体填充。
根据一种替代的实施例,不是冷却通道4对外得到密封并且将液体注入到冷却通道中,而是制动面7和制动盘鼓3得到密封或者用保护层覆盖,使得基础盘2整体上能够浸入到液体中,由此冷却通道4整体上被穿流并且由于保护层而使得制动面7和制动鼓3不与液体接触,使得在最终效果中仅冷却通道4或其表面5被加载并且如期望的那样被涂层。
液体例如是指用于电镀施覆防腐蚀涂层的电解槽或者是指用于湿化学涂层的气体或蒸汽状的介质。对于电镀涂层,例如将镍引入到液体中并且在镍和基础盘之间形成电压,使得镍的金属离子从镍电极上脱离并且积聚在基础盘上。由此,在相应的冷却通道4中的表面5均匀地以镍涂层。代替镍,也可以使用其它在电镀上合适的材料、像比如铬或合金。
为了执行湿化学的涂层方法,例如以化学的方式使用镍。
由于用对于涂层过程所需的化学物质流经冷却通道4,可靠地到达并涂层相应的冷却通道4中的每个位置。由此确保在相应的冷却剂通道4中均匀地涂层表面5。同时确保了,基础盘2的位于外部的表面、像比如制动面7不设有防腐蚀涂层。
在执行相应的涂层方法之后,再次去除密封元件或保护层并且在步骤S4中提供完成的制动盘1。
通过用于防腐蚀涂层的有利的电镀的镍-涂层,在铸造盘-基础盘2上实现了出色的附着性和轮廓精确性。也可以以在数10 µm范围内的层厚度制备没有可识别的孔的厚的层。由于低应力,甚至更大的层厚度也是可能的。在所述防腐蚀涂层的、尤其由镍制成的防腐蚀涂层的表面上,紧接在沉积之后形成所谓的钝化层,所述钝化层作为扩散屏障可靠地防止由于腐蚀作用而引起的进一步变化并且由此可靠地保护所述制动盘1免受腐蚀。通过密封元件,化学物质的流经被限制到相应的冷却通道上,并且因此防止在制动面7上以及也在制动盘鼓3上的不期望的层形成。
即使在对冷却通道4进行化学涂层时,也能够制造直至80 µm的层厚度,由此确保可靠的防腐蚀保护。
通过借助于防腐蚀涂层实现的有利的防腐蚀保护,提高了制动盘1的使用寿命。这尤其在制动盘1相对少地用于制动时也是重要的。这例如在如下的电动车辆或混合动力车辆中是这种情况,所述电动车辆或混合动力车辆通过电驱动机器的回收式运行比如下的机动车磨损更少,所述机动车仅具有传统的内燃机作为用于加速的驱动装置并且仅具有用于使机动车减速的摩擦制动系统。
Claims (6)
1.一种用于制造用于机动车的制动盘(1)的方法,其中提供特别是由铸铁或铝制成的基础盘(2),并且该基础盘设有防腐蚀涂层(6),其特征在于,所述防腐蚀涂层(6)通过湿化学法或电镀法施覆。
2.根据权利要求1所述的方法,其特征在于,作为防腐蚀涂层(6)施覆化学的或电镀的镍。
3.根据权利要求1所述的方法,其特征在于,作为防腐蚀涂层(6)施覆铬或合金。
4.根据前述权利要求中任一项所述的方法,其特征在于,所述基础盘(2)设有至少一个冷却通道(4),并且仅所述至少一个冷却通道(4)设有所述防腐蚀涂层(6)。
5.根据前述权利要求中任一项所述的方法,其特征在于,在涂层过程之前密封至少一个制动面(6)和制动盘鼓(3)。
6.一种用于机动车的制动盘(1),特别是根据权利要求1至5中任一项所述的方法制造的制动盘(1),所述制动盘具有特别是由铸铁或铝制成的基础盘(2)并且在所述基础盘(2)的至少一个表面(5)上具有防腐蚀涂层(6),其特征在于,所述防腐蚀涂层(6)是湿化学涂层或电镀涂层。
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US20200347897A1 (en) | 2020-11-05 |
WO2019138035A1 (de) | 2019-07-18 |
JP7034302B2 (ja) | 2022-03-11 |
EP3737872A1 (de) | 2020-11-18 |
JP2021510409A (ja) | 2021-04-22 |
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