The Application Characteristics of Disc Brake Disc

Disc brake relative to the brake shoe brake has the following advantages: the brake is smooth, there is no wheel tread brake in the vibration; no tread wear; wheel tread from heat damage; reliability and safety performance. On the brake disc material to ensure that the friction between the brake disc and the brake plate characteristics of stability, and wear to prevent the brake disc to produce cracks. The material of the brake disc includes cast iron, cast steel, metal cladding and special forged steel. Often cast iron is the most commonly used material for brake discs. It has the advantages of good friction performance, wear resistance, heat resistance, crack resistance, resistance to deformation and good casting performance. The factors that affect the strength characteristics of the brake disc are the structure of the brake disc, the shape of the brake pad, and their material. Structural factors include stiffness, heat capacity and cooling methods, which are interrelated and affect the strength characteristics of the brake disc. In order to improve the strength of the brake disc, mainly in the material and structure of two aspects of research. To improve the strength of the brake disc must improve the cooling effect. In the development and improvement of brake discs, the requirements for brake discs are becoming more stringent due to the high speed and the need to reduce weight, which also poses a higher challenge to brake discs.

                            盘式制动盘的应用特点

盘式制动相对于闸瓦制动有以下优点：制动作用平稳，没有在车轮踏面制动中发生的振动；无踏面磨耗；车轮踏面免遭热损伤；可靠性和安全性能高等。关于制动盘的材质要保证制动盘与闸片之间的摩擦特性稳定，同时要耐磨，以防止制动盘产生裂纹。制动盘的材质包括铸铁、铸钢、金属包层式及特殊锻钢。通常铸铁作为制动盘最常用的材质。它具有摩擦性能好、耐磨、耐热、抗裂纹、抗变形以及可铸造性能好等优点。影响制动盘强度特性的因素是制动盘的结构、闸片的形状以及它们的材质等。结构因素包括刚度、热容量及散热方式等，这些因素互相关联并影响制动盘的强度特性。为了提高制动盘的强度，主要在材料和结构两个方面做研究。要提高制动盘的强度就必须提高散热效果。在制动盘的研制和改进方面，由于速度高和减轻重量的需要，对制动盘的要求越来越严格了，这也对制动盘提出了更高的挑战。