Mold release agent and preparation method thereof
A technology of release agent and dry material, which is applied in the field of release agent, preparation of release agent, and reagent processing for ironmaking. It can solve the problems that iron blocks cannot fall off completely and affect the work of cast iron machines, and achieve low cost and favorable Good promotion and release performance
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preparation example Construction
[0020] The preparation method of release agent, comprises the steps:
[0021] a. Put 10-12 times the weight of carboxymethyl cellulose in hot water in the bucket, the temperature of the hot water is between 80-100°C, and pour the weighed carboxymethyl cellulose into the bucket at a constant speed, And use a stirring stick to stir, after uniformity, let it stand for at least 24 hours;
[0022] b. Put 1.5 times the total weight of dry material in the mixing tank, start the stirring device, add the weighed aluminum-magnesium refractory mud and coal powder in turn, after stirring evenly, then add the weighed sodium-based bentonite until After there is no lump in the mixing tank, add low-carbon coal slime and continue stirring until uniform;
[0023] c. Pour the contents of the barrel in step a into the stirring tank in step b, and the stirring time is at least 20 minutes;
[0024] d. Add water 7.5-9.5 times the total weight of the dry material into the mixing tank, and stir even...
Embodiment 1
[0027] Prepare raw materials (dry materials) according to the mixing ratio in Table 1
[0028] name
low carbon slime
Aluminum magnesium refractory clay
pulverized coal
Proportion
1.5%
13.5%
55%
15%
15%
weight
15g
135g
550g
150g
150g
[0029] Table I
[0030] a. Put 150g of hot water in the bucket, the temperature of the hot water is 80°C, and pour 15g of carboxymethyl cellulose into the bucket at a constant speed, and stir with a stirring rod. After uniformity, the standing time is 24h;
[0031] b. Put 1500g of dry water in the stirring tank, start the stirring device, add 150g of aluminum-magnesium refractory mud and 150g of coal powder in turn, after stirring evenly, add 135g of sodium bentonite until there is no lump in the stirring tank, then add 550g Low-carbon coal slime, continue to stir until uniform;
[0032] c. Pour the contents of the barrel in st...
Embodiment 2
[0036] Prepare raw materials according to the mix ratio in Table 2
[0037] name
carboxymethyl cellulose
Sodium bentonite
low carbon slime
Aluminum magnesium refractory clay
pulverized coal
Proportion
1%
15%
53%
18%
13%
weight
10g
150g
530g
180g
130g
[0038] Table II
[0039] a. Put 110g of hot water in the bucket, the temperature of the hot water is 80°C, and pour 10g of carboxymethyl cellulose into the bucket at a constant speed, and stir with a stirring rod. After uniformity, the standing time is 26h;
[0040] b. Put 1500g of dry water in the mixing tank, start the mixing device, add 180g of aluminum-magnesium refractory mud and 130g of coal powder in turn, after stirring evenly, add 150g of sodium bentonite until there is no lump in the mixing tank, then add 530g Low-carbon coal slime, continue to stir until uniform;
[0041] c. Pour the contents of the barrel in step a into the stirring tank ...
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