Metal-based powder metallurgy brake lining material and preparation methods thereof
A powder metallurgy and brake pad technology, applied in friction linings, mechanical equipment, etc., can solve the problems of limiting the selection range of ceramic particles, increasing and reducing production costs, and achieving environmental protection, improved service life, and strength. high density effect
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[0067] Example 1
[0068] 1. The content of each component of the brake pad material according to the present invention is: Cu powder: 54%, Sn powder: 6%, graphite: 21%, Fe powder: 3%, Ti powder: 8%, Al 2 O 3 Powder: 6%, Ni powder: 1% and Cr powder: 1%.
[0069] 2. Refer to figure 1 , The weight ratio of Ti powder and graphite is 4:1, that is, 8% Ti powder and 2% graphite are mechanically activated in a horizontal planetary ball mill at a speed of 500 rpm and an activation time of 10 hours. Ti-C mechanically activated powder: 10%. The figure shows the typical X-ray diffraction pattern of the Ti-C mechanically activated powder.
[0070] 3. Refer to figure 2 , The weight ratio of Cu powder and Sn powder is 9:1, ie 54% Cu powder and 6% Sn powder are mechanically alloyed in a horizontal planetary ball mill at a speed of 500 rpm and an activation time of 10 hours , Made into Cu-Sn mechanical alloy powder: 60%. The figure shows the typical X-ray diffraction pattern of the Cu-Sn mechan...
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[0076] Example 2
[0077] 1. The content of each component of the brake pad material according to the present invention is: Cu powder: 54%, Sn powder: 6%, graphite: 21%, Fe powder: 3%, Ti powder: 8%, Al 2 O 3 Powder: 6%, Ni powder: 1% and Cr powder: 1%.
[0078] 2. The weight ratio of Ti powder and graphite is 8:1, that is, 8% Ti powder and 1% graphite are mechanically activated in a horizontal planetary ball mill at a speed of 500 rpm and an activation time of 10 hours. Ti-C mechanically activated powder: 9%.
[0079] 3. The weight ratio of Cu powder and Sn powder is 9:1, ie 54% Cu powder and 6% Sn powder are mechanically alloyed in a horizontal planetary ball mill at a speed of 500 rpm and an activation time of 10 Hours to produce Cu-Sn mechanical alloy powder: 60%.
[0080] After 9% Ti-C mechanically activated powder and 60% Cu-Sn mechanical alloy powder are made, the brake pad material of the present invention is changed into Cu-Sn mechanical alloy powder according to the weig...
Example Embodiment
[0085] Example 3
[0086] 1. The content of each component of the brake pad material according to the present invention is: Cu powder: 54%, Sn powder: 6%, graphite: 21%, Fe powder: 3%, Ti powder: 8%, Al 2 O 3 Powder: 6%, Ni powder: 1% and Cr powder: 1%.
[0087] 2. The weight ratio of Ti powder and graphite is 6:1, that is, 8% Ti powder and 1.33% graphite are mechanically activated in a horizontal planetary ball mill at a speed of 500 rpm and an activation time of 10 hours. Ti-C mechanically activated powder: 9.33%.
[0088] 3. The weight ratio of Cu powder and Sn powder is 9:1, ie 54% Cu powder and 6% Sn powder are mechanically alloyed in a horizontal planetary ball mill at a speed of 500 rpm and an activation time of 10 Hours to produce Cu-Sn mechanical alloy powder: 60%.
[0089] After making 9.33% Ti-C mechanically activated powder and 60% Cu-Sn mechanical alloy powder, the brake pad material of the present invention becomes the following component content by weight percentage...
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