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2020/03/10

摩擦材料的摩擦性能检测设备及试验方法

摩擦材料的摩擦性能检测设备及试验方法

摩擦性能的检测设备为摩擦试验机，用它可以检测摩擦材料在不同工况条件（不同温度、速度、压力）下的摩擦系数、制动力矩和磨损性能。摩擦试验机分为以下几种类型：（1）小样摩擦试验机   这种试验机是对从摩擦片成品（刹车片或离合器面片）按规定要求取下的样品（试样）进行摩擦系数和磨损性能试验，例如：我国目前执行GB5763-2008和GB5764-2008标准的定速式摩擦试验机，北美执行SAEJ661试验规范

摩擦材料的摩擦性能检测设备及试验方法

2020/03/11

摩擦材料热压后制品的后加工处理

摩擦材料热压后制品的后加工处理

1、热处理   经过热压后的摩擦材料制品，在相当或稍高于热压温度下经过若干小时的常压热烘，成为热处理。热处理的目的如下：（1）使摩擦材料成分中的粘结剂能彻底固化，从而使制品摩擦性能，尤其是热摩擦性能稳定。（2）消除热压后摩擦材料制品中的热应力，以防止制品出现翘曲变形。（3）对人为的热压时间不够加以补足，以提高压机的生产效率。（4）减少热压制品的热膨胀。2、磨削加工   压制好的制品，它的几何形状是

摩擦材料热压后制品的后加工处理

2020/03/13

摩擦材料热压固化成型工艺

摩擦材料热压固化成型工艺

在摩擦材料制品的生产过程中一般最常用的成型方法，是将压塑料在压力和加热条件下进行成型和固化，才能获得具有规定形状、一定密度、硬度和机械强度的摩擦片制品。也有极少产品系在常压下与较低温度下成型。最常用的摩擦材料的成型固化工艺方法，包括热压成型（热模压）、辊压法成型固化和冷压法成型固化等工艺。这些工艺方法个有其特点，有些工艺系加热加压在同一设备中进行，有的工艺系加热和加压在不同设备中分开进行。  1、

摩擦材料热压固化成型工艺
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