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Friction materials are often used in our lives, speaking of friction materials we may not be very familiar with, but speaking of clutches and brake pads must not be unfamiliar to everyone, brake pads can be seen everywhere in our lives. Friction material is a kind of application in power machinery, it is widely used in automobile brake pads, motorcycle brake pads, train brakes, etc., we use bicycles, washing machines, etc. as a power transmission or braking deceleration with indispensable materials. The ideal brake pad must have the following properties: sufficient and stable coefficient of friction, high heat resistance and certain toughness, and very little noise in the work, in order to meet these requirements, the premise of the production process to strict requirements of raw materials and production equipment.
Today we will analyze the powder metallurgy brake pads in the mixing process of metal and non-metal is not easy to mix the problem, powder metallurgy industry brake pads mainly to metal powder and non-metal powder materials, powder metallurgy brake pads mainly include steel back, sintered on the side of the steel back at least one metal powder to form a friction block, and this friction block in the production of the joint part is mixing, pressing and sintering, powder metallurgy brake pads in the The mixing process contains a large amount of synthetic carbon (also called non-metal) in the formula, which lies in the metal powder mix, there is a light and heavy powder is not easy to mix the problem. Since the non-metal itself is very light and floats in the metal powder mix, the non-metal carbon material keeps floating inside the mixer and it is difficult to participate in the mix with the metal powder. The result is that the metal and non-metal powder is not uniformly mixed, resulting in later sintering when the individual part of the non-metal does not reach the dispersion distribution uniformly, becoming hard and brittle. If there is no compulsory means, even if they are mixed for a long time, they are still difficult to mix. To solve this problem, it is recommended to consider the multi-power mixing process. By the multi-power mixer barrel and internal blade running at the same time rotation, so that the container and the blade will be wrapped floating barrel above the non-metallic powder into the main body of the metal powder to participate in the mixing, so as to solve the problem of metal and non-metal is not easy to mix, but also can be used to automate the mixing. From dust-free feeding to vacuum feeding system to the automation of equipment on the docking and docking and mixing of automated mixer production line, the whole process to achieve dust-free, improve the working environment of workers and production efficiency.
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