Sagger for calcining battery material and preparation method thereof
A battery material, roasting technology, applied in the direction of charge, lighting and heating equipment, charging processing types, etc., can solve the problems of corrosion resistance and energy saving not reaching the foreign level, and meet the fully automatic assembly line production mode, the overall strength is high. , good effect
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Embodiment 1
[0024] (1) Mixing of ingredients
[0025] First, take 10 parts of 200-mesh cordierite fine powder, 15 parts of 325-mesh fused magnesia-aluminum spinel fine powder, 5 parts of sintering-promoting micropowder A, and 20 parts of clay into a double-cone mixer, and put zirconia Balls for fine powder pre-mixing. Then take 30 parts of cordierite with a particle size of 2-1, and 20 parts of cordierite with a particle size of 1-0, put them into the wheel mill and mix them for 3-5 minutes, add 3 parts of water, and knead again for 5 minutes, then Add about 1 part of pre-mixed fine powder and organic binder, and finally knead for about 25 minutes, then put it into a stainless steel bucket for aging.
[0026] Among them, in the sintering-promoting micropowder A, the particle size is 325 mesh spodumene powder and the particle size is 200 mesh lithium feldspar powder mass ratio is 4:6, add dispersant, put into polyurethane ball mill, add zirconia balls, according to the ball-to-material ra...
Embodiment 2
[0031] The steps are basically the same as in Example 1, the difference being:
[0032] 20 parts of cordierite with a particle size of 2-1, 25 parts of cordierite with a particle size of 1-0, 15 parts of cordierite fine powder of 200 mesh, 18 parts of fused magnesium aluminum spinel fine powder of 325 mesh, and sintering-promoting fine powder A 2 parts, the mass ratio of spodumene powder with a particle size of 325 mesh to lithium petalite powder with a particle size of 200 mesh in the sintering-promoting micropowder A is 1:1, and the maximum firing temperature is 1380°C.
Embodiment 3
[0034] The steps are basically the same as in Example 1, the difference being:
[0035] 25 parts of cordierite with a particle size of 2-1, 25 parts of cordierite with a particle size of 1-0, 12 parts of cordierite fine powder of 200 mesh, 15 parts of fused magnesia aluminum spinel fine powder of 325 mesh, and sintering-promoting fine powder A 3 parts, the mass ratio of spodumene powder with a particle size of 325 mesh to lithium petalite powder with a particle size of 200 mesh in the sintering-promoting micropowder A is 3:7, the molding pressure is 80MPA, and the maximum firing temperature is 1400°C.
[0036] The comparison of the setter physical properties obtained by the above examples is shown in Table 1:
[0037] Table 1 Physical performance test table of setter plate
[0038]
[0039] The present invention uses a lithium sintering agent, which mainly consists of two lithium micropowders. The low melting point of the micropowder is used to reduce the sintering tempera...
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