A kind of ceramic spherical material for 3D printing and its preparation method and application
A 3D printing, spherical technology, applied in the direction of additive processing, etc., to achieve a high spheroidization rate and the effect of sintering that is conducive to densification
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Embodiment 1
[0027] A method for preparing ceramic spherical materials for 3D printing, the steps are as follows:
[0028] Step 1: Weigh a certain amount of SiO to be spheroidized 2 Ceramic powder, according to the mass ratio of material: ball: water=1:2:3, ball milled for 12h;
[0029] Step 2: SiO to be spheroidized 2 The ceramic powder is ground out and placed in an oven to dry to constant weight;
[0030] Step 3: Sieving: pass the dried ceramic powder through a 45-mesh sieve;
[0031] Step 4: Radio frequency plasma spheroidization: add the sieved ceramic powder to the radio frequency plasma spheroidization milling equipment, adjust the equipment parameters: working air flow rate 25L / min, side air flow rate 110L / min, feeding rate 20g / min, System pressure 80kPa, plasma power 80kW.
[0032] Step 5: Collection of ceramic spherical materials, and testing of particle size and nodularization rate.
[0033] Such as figure 1 As shown, the prepared SiO 2 The particle size of the ceramic sp...
Embodiment 2
[0035] A method for preparing ceramic spherical materials for 3D printing, the steps are as follows:
[0036] Step 1: Weigh a certain amount of Al to be spheroidized 2 o 3 Ceramic powder, according to the mass ratio of material: ball: water=1:2:3, ball milling 10h;
[0037] Step 2: Al to be spheroidized 2 o 3 The ceramic powder is ground out and placed in an oven to dry to constant weight;
[0038] Step 3: Sieving: pass the dried ceramic powder through a 50-mesh sieve;
[0039] Step 4: Radio frequency plasma spheroidization: add the sieved ceramic powder to the radio frequency plasma spheroidization milling equipment, adjust the equipment parameters: working air flow rate 20L / min, edge air flow rate 100L / min, feeding rate 15g / min, The system pressure is 70kPa, and the plasma power is 85kW.
[0040] Step 5: Collection of ceramic spherical materials, and testing of particle size and nodularization rate.
[0041] Such as figure 2 As shown, the prepared Al 2 o 3 The par...
Embodiment 3
[0043] A method for preparing ceramic spherical materials for 3D printing, the steps are as follows:
[0044] Step 1: Weigh a certain amount of ZrO to be spheroidized 2 Ceramic powder, according to the mass ratio of material: ball: water = 1:3:3, ball milled for 14h;
[0045] Step 2: the ZrO to be spheroidized 2 The ceramic powder is ground out and placed in an oven to dry to constant weight;
[0046] Step 3: Sieving: pass the dried ceramic powder through a 60-mesh sieve;
[0047] Step 4: Radio frequency plasma spheroidization: add the sieved ceramic powder to the radio frequency plasma spheroidization milling equipment, adjust the equipment parameters: working air flow rate 30L / min, side air flow rate 100L / min, feeding rate 15g / min, The system pressure is 85kPa, and the plasma power is 90kW.
[0048] Step 5: Collection of ceramic spherical materials, and testing of particle size and nodularization rate.
[0049] Such as image 3 As shown, the prepared ZrO 2 The particl...
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