A kind of preparation method of semi-metal base brake pad
A technology based on brake pads and semi-metals, applied in the field of brake pad preparation, can solve the problems of increased specific gravity and thermal conductivity, easy rust, low-frequency noise, etc., and achieve stable friction coefficient, not easy to rust, and reduce brake noise Effect
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example 1
[0018] First, take 900g of natural zeolite and immerse it into a solution of 10% dodecyltrimethylammonium chloride with a mass concentration 10 times its volume, put it into an ultrasonic oscillator and oscillate with a power of 300W to immerse overnight and then filter to obtain the filter residue. Put it into a beaker and put it in the refrigerator, and freeze it at -15°C for 12 hours; take out the frozen filter residue and put it in a mortar for grinding for 30 minutes, then pass through a 200-mesh sieve, put the filtered filter residue powder into a muffle furnace, and heat Heat up to 300°C and heat-preserve for calcination for 60 minutes. Take it out immediately after the calcination to obtain high-temperature filter residue, and immediately pour it into a solution of 7 times its volume and mass concentration of 15% calcium bicarbonate solution, stir and react for 20 minutes, then transfer it to a Buchner funnel, and successively use Water, ethanol and deionized water were...
example 2
[0020] First, take 800g of natural zeolite and immerse it into a 10% dodecyltrimethylammonium chloride solution with a mass concentration 8 times its volume, put it into an ultrasonic oscillator and oscillate with a power of 200W to impregnate overnight, then filter to obtain the filter residue, and immediately remove the filter residue Put it into a beaker and put it in the refrigerator, and freeze it at -20°C for 10 hours; take out the frozen filter residue, put it in a mortar, grind it for 20 minutes, pass it through a 200-mesh sieve, put the filtered filter residue powder into a muffle furnace, and heat Heat up to 200°C and heat-preserve for calcination for 40 minutes. After the calcination, take it out immediately to obtain a high-temperature filter residue, and immediately pour it into a 15% calcium bicarbonate solution with a mass concentration 5 times its volume. After stirring and reacting for 15 minutes, transfer it to a Buchner funnel, and successively use Water, eth...
example 3
[0022]First take 850g of natural zeolite by weighing and immerse it in a mass concentration of 9 times its volume and be 10% dodecyltrimethylammonium chloride solution, put it into an ultrasonic oscillator and oscillate with a power of 250W and impregnate overnight to obtain a filter residue, and immediately remove the filter residue Put it into a beaker and put it in the refrigerator, and freeze it at -17°C for 11 hours; take out the frozen filter residue, put it in a mortar, grind it for 25 minutes, pass it through a 200-mesh sieve, put the filtered filter residue powder into a muffle furnace, and heat Heat up to 250°C and heat-preserve for 50 minutes. After the calcination, take it out immediately to obtain a high-temperature filter residue, and immediately pour it into a 15% calcium bicarbonate solution with a mass concentration 6 times its volume. After stirring and reacting for 17 minutes, transfer it to a Buchner funnel. Water, ethanol and deionized water were filtered a...
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Abstract
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