Danas proizvođači automobilskih kočnica razgovaraju o uobičajenim problemima polu-metalnih materijala u kočnicama.
Polu-metalne formulacije za materijale trenja. Main features: 1. Low cost. 2. Visoka toplinska vodljivost. 3. Dobra otpornost na habanje. 4. Prikladno za teške uvjete kočenja.
Prvi problem materijala za trenje:
2. Više prašine (degradacija niske temperature).
Postotak volumena vrlo je ispravna jedinica za mjerenje materijala za trenje. Formulation engineers should take the initiative to understand the fundamental properties of various raw materials (density, particle size, hardness, moisture, chemical composition, elastic modulus), but also should clearly understand the effects of various friction materials on the micro and macro functions of friction materials. Now, according to the understanding of automobile brake pad manufacturers, most formula design tests are based on the component ratio. In order to avoid the lack of fundamental data on the function of the raw material, it is theoretically difficult to express the connection between the number of ingredients in the formula and the conflicting functions in a simple and clear formula, such as mixing time, pressure time, pressure pressure, holding time and degassing time, grinding method, two layers of material, data and other factors can affect the braking function anytime and anywhere during the braking process. As regards the formulation itself, it is not correct to determine the proportions of the various ingredients by theoretical means, nor can we quickly derive direct quantitative links between the formulation and the function, which depend primarily on accumulated experience over a long period of time.
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