Ladle filter sand
A technology of drainage sand and ladle, which is applied in the direction of casting molten material containers, manufacturing tools, metal processing equipment, etc., can solve the problems of automatic pouring rate and poor high temperature resistance of drainage sand, so as to improve the automatic casting rate and avoid Too thick, the effect of increasing the pouring rate
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example 1
[0028] Put the rice husk in an oven, and dry it to a constant weight at a temperature of 110° C. to obtain dried rice husk, crush the dried rice husk and pass through a 160-mesh sieve to obtain rice husk powder, and mix the obtained rice husk powder with After the nano-iron powder is stirred and mixed according to the mass ratio of 100:1, it is moved into the carbonization furnace, and argon gas is introduced into the furnace at a rate of 60 mL / min. ℃, after heat preservation and carbonization for 4 hours, continue to heat up to 1550 ℃ at a rate of 15 ℃ / min, and react at high temperature for 60 minutes. Mix with hydrochloric acid with a mass fraction of 10%, stir and mix with a glass rod for 40 minutes, filter to obtain a filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then transfer the washed filter cake to an oven, Dry to constant weight at a temperature of 110°C to obtain carbonized rice husk material; in parts by weight, add ...
example 2
[0030] Put the rice husk in an oven, and dry it to a constant weight at a temperature of 110° C. to obtain dry rice husk, crush the dried rice husk and pass through a 160-mesh sieve to obtain rice husk powder, and mix the obtained rice husk powder with After the nano-iron powder is stirred and mixed according to the mass ratio of 100:1, it is moved into the carbonization furnace, and argon gas is introduced into the furnace at a rate of 60 mL / min. ℃, after heat preservation and carbonization for 4 hours, continue to heat up to 1550 ℃ at a rate of 15 ℃ / min, and after 60 minutes of high temperature reaction, under the protection of argon, cool down to room temperature with the furnace, discharge the material, and obtain the carbonized material, and the obtained carbonized material Mix with hydrochloric acid with a mass fraction of 10%, stir and mix with a glass rod for 40 minutes, filter to obtain a filter cake, and wash the filter cake with deionized water until the washing liqu...
example 3
[0032]Put the rice husk in an oven, and dry it to a constant weight at a temperature of 110° C. to obtain dried rice husk, crush the dried rice husk and pass through a 160-mesh sieve to obtain rice husk powder, and mix the obtained rice husk powder with After the nano-iron powder is stirred and mixed according to the mass ratio of 100:1, it is moved into the carbonization furnace, and argon gas is introduced into the furnace at a rate of 60 mL / min. ℃, after heat preservation and carbonization for 4 hours, continue to heat up to 1550 ℃ at a rate of 15 ℃ / min, and react at high temperature for 60 minutes. Mix with hydrochloric acid with a mass fraction of 10%, stir and mix with a glass rod for 40 minutes, filter to obtain a filter cake, and wash the filter cake with deionized water until the washing liquid is neutral, then transfer the washed filter cake to an oven, Dry to constant weight at a temperature of 110°C to obtain carbonized rice husk material; in parts by weight, add 2...
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