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发明公开
CN110360253A 一种摩擦制动片成分及其制备方法 无效 - 驳回

一种摩擦制动片成分及其制备方法
摘要：
本发明涉及直升机制动领域，尤其涉及一种摩擦制动片成分及其制备方法。通常牺牲磨损率，以获得较高的摩擦系数。本发明提供一种摩擦制动片成分及其制备方法，成分按重量比例包括：海泡石纤维50～52、腰果壳粉34～37、酚醛超细树脂37～38、长石粉20～25、磷片石墨22～26、氧化铁黑23～25、短切玻璃纤维21～26、丁氰橡胶粉21～26、氧化铝20～21、硬脂酸锌20～21和硫酸钡30～34。该摩擦制动材料的磨损率低于0.18×10-7cm3/Nm，高温摩擦系数高于0.42，材料密度小于1.9g/cm3，工艺环保，可显著降低直升机摩擦制动片的更换频率。
摘要（英）：

The invention relates to the field of helicopter braking, in particular to components and preparation method of a friction brake pad, and aims to solve the problem that the higher friction coefficientis usually obtained by increasing the wear rate. The friction brake pad comprises the following components of, by weight: sepiolite fiber: 50-52%, cashew nut shell powder: 34-37%, phenolic superfineresin: 37-38%, feldspar powder: 20-25%, phosphorus flake graphite: 22-26%, iron oxide black: 23-25%, chopped glass fiber: 21-26%, nitrile rubber powder: 21-26%, aluminum oxide: 20-21%, zinc stearate:20-21% and barium sulfate: 30-34%. The wear rate of the friction brake material is less than 0.18*10<-7> cm<3>/Nm, the high-temperature friction coefficient is higher than 0.42, the material density is less than 1.9 g/cm<3>, the process is environmentally friendly, and the replacement frequency of the friction brake pad of a helicopter can be obviously reduced.

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