Formulasi separuh-logam untuk bahan geseran. Ciri -ciri utama: 1. Kos rendah. 2. Kekonduksian terma yang tinggi. 3. Rintangan haus yang baik. 4. Sesuai untuk keadaan brek tugas berat.

Masalah pertama bahan geseran:

3. Kandungan logam yang tinggi menjadikan suhu rendah dan kekurangan kekerasan yang rendah, yang hanya menyebabkan keletihan pedal.

Jumlah peratusan adalah unit yang sangat betul untuk mengukur bahan geseran. 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. Sekarang, menurut pemahaman pengeluar pad brek kereta, kebanyakan ujian reka bentuk formula adalah berdasarkan nisbah komponen. 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.