Additive for removing old foundry sand inert film and method for removing old foundry sand inert film
An inert film and additive technology, applied in the field of materials, can solve problems such as difficulty in regenerating old sand, and achieve the effect of avoiding solidification and agglomeration
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0109] This embodiment provides an additive for removing the inert film of old foundry sand, and a kind of foundry sand.
[0110] The additives for removing the inert film of foundry old sand include alumina, magnesium carbonate, and magnesium oxide in a mass ratio of 2:2:1.
[0111] The foundry sand is prepared by the following method through the old foundry sand and the additive for removing the inert film of the old foundry sand provided in this embodiment:
[0112] The old foundry sand is crushed into particles; then mixed with the additive for removing the inert film of the old foundry sand provided in this example to obtain a mixture; the mass of the additive for removing the inert film of the old foundry sand is 10% of the mass of the old foundry sand.
[0113] The mixture was put into a roasting furnace and roasted at 800°C for 8 hours.
[0114] The roasted foundry sand enters the mechanical grinder at 400°C, where the sand grains collide and rub, and are regenerated ...
Embodiment 2
[0116] This embodiment provides an additive for removing the inert film of old foundry sand, and a kind of foundry sand.
[0117] The additives for removing the inert film of foundry old sand include calcium oxide, calcium carbonate and potassium carbonate in a mass ratio of 1:2:2.
[0118] The foundry sand is prepared by the following method through the old foundry sand and the additive for removing the inert film of the old foundry sand provided in this embodiment:
[0119] The used foundry sand is mixed with the additive for removing the inert film of the used foundry sand provided in this embodiment to obtain a mixture; the mass of the additive for removing the inert film of the used foundry sand is 10% of the mass of the used foundry sand.
[0120] The mixture was put into a roasting furnace and roasted at 800°C for 8 hours.
[0121] The roasted foundry sand enters the mechanical grinder at 400°C, where the sand grains collide and rub, and are regenerated by thermal meth...
Embodiment 3
[0123] This embodiment provides an additive for removing the inert film of old foundry sand, and a kind of foundry sand.
[0124] The additives for removing the inert film of foundry old sand include aluminum oxide, magnesium oxide, magnesium carbonate, calcium oxide, calcium carbonate and potassium carbonate in a mass ratio of 2:2:3:2:3:3.
[0125] The foundry sand is prepared by the following method through the old foundry sand and the additive for removing the inert film of the old foundry sand provided in this embodiment:
[0126] The used foundry sand is mixed with the additive for removing the inert film of the used foundry sand provided in this embodiment to obtain a mixture; the mass of the additive for removing the inert film of the used foundry sand is 10% of the mass of the used foundry sand.
[0127] The mixture was put into a roasting furnace and roasted at 800°C for 8 hours.
[0128] The roasted foundry sand enters the mechanical grinder at 400°C, where the sand...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More