Control method for 3D printing wire forming quality
A 3D printing and control method technology, applied in the field of 3D printing wire forming quality control, can solve the problems of poor material quality, low extrusion temperature, poor extrusion stability, etc., to reduce the high cost of use and improve the extrusion efficiency. , The effect of high extrusion stability
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Embodiment 1
[0021] Embodiment 1, a kind of control method of 3D printing wire material forming quality, comprises the following steps:
[0022] 1) Put the high-melting point extrusion material PEEK pellets in the material tray, then put the material tray into the drying oven to heat and dry, the drying temperature is 150 ° C, and the drying time is 4 hours to remove the moisture existing in the PEEK pellets;
[0023] 2) Place the dried PEEK pellets in a vacuum box to prevent secondary entry of moisture;
[0024] 3) Extrude the wire with a parallel twin-screw extruder:
[0025] 3.1) Add the PEEK pellets to the feeding container of the parallel twin-screw extruder;
[0026] 3.2) Adjust the extrusion process parameters. The extrusion process parameters include: use 7-stage extrusion zone temperature to be set as zone 1: 350°C, zone 2: 345°C, zone 3: 345°C, zone 4: 345°C, zone 5 Zone: 345°C, zone six: 342°C, die extrusion zone: 343°C; feeding speed 4.0r / min, screw extrusion speed 19r / min, a...
Embodiment 2
[0031] Embodiment 2, a method for controlling the molding quality of 3D printing filaments, comprising the following steps:
[0032] 1) Put the high-melting point extrusion material PEI pellets in a tray, then put the tray into a drying oven to heat and dry, the drying temperature is 150°C, and the drying time is 6h to remove the moisture present in the PEI pellets;
[0033] 2) Place the dried PEI pellets in a vacuum box to prevent secondary entry of moisture;
[0034] 3) Extrude the wire with a parallel twin-screw extruder:
[0035] 3.1) Add PEI pellets to the parallel twin-screw extruder feeding container;
[0036] 3.2) Adjust the extrusion process parameters. The extrusion process parameters include: use 7-stage extrusion zone temperature to set respectively as zone 1: 341°C, zone 2: 336°C, zone 3: 330°C, zone 4: 330°C, zone 5 Zone: 322°C, zone six: 336°C, die extrusion zone: 332°C, feeding speed 3.4r / min, screw extrusion speed 20r / min, air cooling flow rate 3L / min, tract...
Embodiment 3
[0040] Embodiment 3, a kind of control method of 3D printing wire material forming quality, comprises the following steps:
[0041] 1) Put the high-melting point extrusion material carbon fiber + PEEK material into the tray with a mass fraction ratio of 1:20, then put the tray into a drying oven to heat and dry, the drying temperature is 150°C, and the drying time is 5h, remove the carbon fiber + PEEK moisture retained in the material,
[0042] 2) Place the dried carbon fiber + PEEK material in a vacuum box to prevent secondary entry of moisture;
[0043] 3) Extrude the wire with a parallel twin-screw extruder:
[0044] 3.1) Add the dried carbon fiber + PEEK material to the V-type mixer for full mixing, set the speed of the V-type mixer to 50r / min, mix for 6 hours, and mix the dried carbon fiber + PEEK material Add to feeding container;
[0045] 3.2) Adjust the extrusion process parameters. The extrusion process parameters include: use the 7-stage extrusion zone temperature...
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