High-breathability lost foam coating and preparing method thereof
A technology of lost foam and air permeability, which is applied in coatings, manufacturing tools, casting molding equipment, etc. It can solve problems such as failure to apply lost foam coatings normally, increased particle irregularity, and unsatisfactory air permeability, etc., and achieves good application prospects and promotional value, reduced heat loss, and good high-temperature breathability
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[0037] Example one:
[0038] 100 parts of foundry waste resin sand, 80 parts of M70 mullite, 15 parts of flake graphite, 4 parts of polystyrene resin particles, 2 parts of aluminum powder, 5 parts of ferric oxide, 3 parts of sodium fluoride, 3 parts of carbon fiber, suspension 6 parts of agent, 10 parts of binder, 0.3 parts of surfactant, 1 part of defoamer, 100 parts of water.
[0039] ①Add 100 parts of water, 1 part of defoamer, and 0.3 parts of surfactant to the dispersion kettle, then add 6 parts of suspending agent under high-speed stirring, and disperse for 10 minutes;
[0040] ②Add 4 parts of polystyrene resin particles, 3 parts of carbon fiber, and 10 parts of binder to the dispersion kettle, and disperse for 10 minutes;
[0041] ③Add 100 parts of cast waste resin sand, 80 parts of M70 mullite, and 15 parts of flake graphite to the dispersion kettle, and disperse for 20 minutes;
[0042] ④Add 2 parts of aluminum powder, 5 parts of ferric oxide, and 3 parts of sodium fluoride to...
Example Embodiment
[0043] Embodiment two:
[0044] 100 parts of cast waste resin sand, 60 parts of high alumina bauxite, 25 parts of flake graphite, 5 parts of polystyrene resin particles, 2 parts of aluminum powder, 8 parts of ferroferric oxide, 5 parts of calcium fluoride, 2 parts of carbon fiber, suspension 3 parts of agent, 13 parts of binder, 0.5 parts of surfactant, 1.5 parts of defoamer, 120 parts of water.
[0045] ①Add 100 parts of water, 1.5 parts of defoamer, and 0.5 parts of surfactant to the dispersion kettle, then add 3 parts of suspending agent under high-speed stirring, and disperse for 10 minutes;
[0046] ②Add 5 parts of polystyrene resin particles, 2 parts of carbon fiber, and 13 parts of binder to the dispersion kettle, and disperse for 10 minutes;
[0047] ③Add 100 parts of cast waste resin sand, 60 parts of high alumina bauxite, and 25 parts of flake graphite to the dispersion kettle, and disperse for 20 minutes;
[0048] ④ Add 2 parts of aluminum powder, 8 parts of ferroferric oxid...
Example Embodiment
[0049] Embodiment three:
[0050] 100 parts of cast waste resin sand, 90 parts of brown corundum, 10 parts of flake graphite, 6 parts of polystyrene resin particles, 1 part of aluminum powder, 10 parts of manganese dioxide, 3 parts of sodium fluoroaluminate, 5 parts of carbon fiber, 10 parts of suspending agent Parts, 10 parts binder, 0.3 parts surfactant, 1.5 parts defoamer, 90 parts water.
[0051] ①Add 90 parts of water, 1.5 parts of defoamer, and 0.3 parts of surfactant to the dispersion kettle, then add 10 parts of suspending agent under high-speed stirring, and disperse for 10 minutes;
[0052] ②Add 6 parts of polystyrene resin particles, 5 parts of carbon fiber, and 10 parts of binder to the dispersing kettle, and disperse for 10 minutes;
[0053] ③Add 100 parts of cast waste resin sand, 90 parts of brown corundum, and 10 parts of flake graphite to the dispersion kettle, and disperse for 20 minutes;
[0054] ④ Add 1 part of aluminum powder, 10 parts of manganese dioxide, and 3 p...
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