A kind of friction material and locomotive brake shoe prepared therefrom
A technology of friction materials and locomotives, applied in friction linings, mechanical equipment, other chemical processes, etc., can solve the problems of low high-temperature friction coefficient, poor impact resistance, and instability of brake shoes, and achieve improved high-temperature friction stability sexual effect
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Embodiment 1
[0026] The friction material described in this embodiment includes the following raw materials in parts by weight:
[0027] 20kg of phenolic resin, 40kg of steel wool fiber, 10kg of glass fiber, 15kg of mineral fiber, 3kg of high-density polyethylene, 8kg of low-density polyethylene, 2kg of medical stone, 3kg of bentonite, 1kg of sulphoaluminate cement, 5kg of cellulose ether, silicon Crystal powder 2kg, fly ash floating beads 3kg.
[0028] The locomotive brake shoe described in this embodiment is made of the above-mentioned friction material, and the preparation method of the locomotive brake shoe includes the following steps:
[0029] (1) Get the selected amount of each raw material and mix to obtain the mixture;
[0030] (2) Place the mixture in a mold, and carry out conventional pressing at 5MPa and 120°C for 10s to obtain a blank;
[0031] (3) Heat and solidify the blank at 200° C. for 24 hours to obtain the desired brake shoe for a locomotive.
Embodiment 2
[0033] The friction material described in this embodiment includes the following raw materials in parts by weight:
[0034] 30kg of phenolic resin, 30kg of steel wool fiber, 20kg of glass fiber, 8kg of mineral fiber, 8kg of high-density polyethylene, 3kg of low-density polyethylene, 6kg of medical stone, 1kg of bentonite, 3kg of cement, 3kg of cellulose ether, 4kg of silicon crystal powder, Fly ash floating beads 1kg.
[0035] The locomotive brake shoe described in this embodiment is made of the above-mentioned friction material, and the preparation method of the locomotive brake shoe includes the following steps:
[0036] (1) Get the selected amount of each raw material and mix to obtain the mixture;
[0037] (2) Place the mixture in a mold, and carry out conventional pressing at 5MPa and 120°C for 10s to obtain a blank;
[0038] (3) Heat and solidify the blank at 200° C. for 24 hours to obtain the desired brake shoe for a locomotive.
Embodiment 3
[0040] The friction material described in this embodiment includes the following raw materials in parts by weight:
[0041] 25kg of phenolic resin, 35kg of steel wool fiber, 15kg of glass fiber, 12kg of mineral fiber, 5kg of high-density polyethylene, 5kg of low-density polyethylene, 4kg of medical stone, 2kg of bentonite, 2kg of cement, 4kg of cellulose ether, 3kg of silicon crystal powder, Fly ash floating beads 2kg.
[0042] The locomotive brake shoe described in this embodiment is made of the above-mentioned friction material, and the preparation method of the locomotive brake shoe includes the following steps:
[0043] (1) Get the selected amount of each raw material and mix to obtain the mixture;
[0044] (2) Place the mixture in a mold, and carry out conventional pressing at 5MPa and 120°C for 10s to obtain a blank;
[0045] (3) Heat and solidify the blank at 200° C. for 24 hours to obtain the desired brake shoe for a locomotive.
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Abstract
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