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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

Active Publication Date: 2018-01-12
PANGANG GROUP TITANIUM INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the stickiness of the iron block, the iron block cannot completely fall off when it reaches the head of the cast iron machine, which affects the work of the cast iron machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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

carboxymethyl cellulose

Sodium bentonite

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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Abstract

The invention relates to the technical field of ironmaking agents, in particular to a mold release agent. The mold release agent is prepared by mixing and stirring a dry material and water, the dry material comprises, by weight, 0.5-1.5% of carboxymethylcellulose, 10.0-15% of sodium bentonite, 50-60% of low carbon coal slurry, 15-20% of aluminum-magnesium refractory mortar, 10-15% of coal powder and the balance water, wherein the weight of the water is 9-11 times of the total weight of the dry material. The preparation method comprises the steps that when being poured, the mold release agent forms a sintered layer of 1-2 mm under the high temperature of molten iron, an isolation layer can be effectively formed between the molten iron and a cast iron mold, a cast iron block can smoothly fall off from the cast iron mold, the mold release performance of the mold release agent is good, the mold release rate is up to 100%, the cast iron mold can be protected and is not easily deformed, theservice life of the cast iron mold can be remarkably prolonged, the low carbon coal slurry is generally thrown away as waste, the low carbon coal slurry is used as the main component of the mold release agent, and waste using is achieved, so that the cost of the release agent is low, and popularization is facilitated.

Description

technical field [0001] The invention relates to the technical field of reagents for ironmaking, in particular to a release agent; in addition, the invention also relates to a processing method for reagents for ironmaking, in particular to a preparation method for a release agent. Background technique [0002] Iron casting machine is the equipment that continuously casts molten iron into iron blocks. The working process of the iron casting machine is as follows: the semi-steel molten iron smelted in the electric furnace, after desulfurization, carbon addition, and temperature adjustment, the crane will lift the ladle containing the molten iron from the refining furnace to the pouring flat car, and transfer it to the steel pouring position. The mechanism pulls the lower plate of the ladle, and the molten iron flows out through the ladle outlet, and then flows into the cast iron mold of the cast iron machine through the molten iron chute. The cast iron mold filled with molten i...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 吴相权陈小勇胡松张峰叶良军白南军李腾川刘敏马勇王丽萍
Owner PANGANG GROUP TITANIUM INDAL
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