9results about How to "Fast printing" patented technology

The invention discloses SiBCN ceramic slurry for direct-writing type 3D printing as well as a preparation method and a printing method of the SiBCN ceramic slurry, and belongs to the field of ceramic additive manufacturing. The invention aims to solve the problem of non-uniform selection and dispersion of SiBCN precursor filler in existing direct writing printing. And the slurry is prepared from cured polyborosilazane (PBSZ) powder, an inorganic rheological additive, a rheological synergist and a polyborosilazane (PBSZ) liquid. The preparation method comprises the following steps: 1, curing polyborosilazane (PBSZ); 2, ball-milling and crushing; (3) weighing; and 4, preparing slurry. The printing method comprises the steps of 1, printing a primary blank; and 2, curing and sintering. The SiBCN ceramic slurry for direct-writing type 3D printing and the preparation and printing thereof are provided by the invention.

This invention belongs to the field of electromagnetic shielding, and relates to an electromagnetic shielding material with a macroscopic conical hole structure, its preparation method, and its application. The preparation method includes: S1. Adding graphene nanosheets and polylactic acid particles to dichloromethane to obtain a graphene composite dispersion; S2. Drying the graphene composite dispersion at room temperature in a fume hood to obtain a graphene / polylactic acid composite material; S3. Chopping the obtained graphene / polylactic acid composite material and feeding it into a benchtop extruder, extruding composite filaments for 3D printing via melt spinning; S4. Creating a 3D printing model on a computer, feeding the composite filaments into a 3D printer, and processing the material with a macroscopic conical hole array structure using computer-controlled 3D printing. This electromagnetic shielding material exhibits excellent electromagnetic shielding performance, has a simple processing technology, low equipment parameter requirements, and is suitable for industrial production.

The invention discloses a blue zirconia ceramic and a preparation method thereof, and the preparation method comprises the following steps: powder mixing modification: mixing zirconia powder, alumina powder and cobalt oxide powder with an alcohol solvent, carrying out ball milling to uniformly mix the powder, adding a surface modifier to modify a ball milling suspension, and drying at 50-80 DEG C for 24-36 hours to obtain the blue zirconia ceramic. The dried powder is sieved, and lipophilic hydrophobic powder is formed; preparing a printing paste material: respectively adding a dispersing agent, a photoinitiator and light-cured resin into the lipophilic hydrophobic powder, and mixing to obtain the printing paste material; printing: printing the printing paste by adopting an SLA-3D printing technology to obtain a ceramic blank; soaking and washing; degreasing and sintering: degreasing and sintering the air-dried ligand in nitrogen; sintering in an oxygen environment to obtain a product; the invention has the advantages of uniform color distribution, stable material, long preservation time, high production efficiency and low cost.

The present invention provides an antibacterial light-curing 3D printing material, which comprises the following components in parts by weight: 100 parts by weight of a biocompatible oligomer / monomer, 0.05-55 parts by weight of a supramolecular photoinitiator system, 5-30 parts by weight of an antibacterial agent, and 1-20 parts by weight of an auxiliary agent, wherein the supramolecular photoinitiator system is a supramolecular compound active under light radiation in the visible light band.

The invention discloses a black and white printing paper code point identification method for an intelligent paper pen, and the method comprises the steps: carrying out the preprocessing of the homework content, and obtaining a homework printing file containing code point information; carrying out black and white printing on the job printing file to obtain a paper piece containing code point information; recording code point information and handwriting of a specified area on the paper in real time through the intelligent pen to obtain handwriting data; code points on the handwriting data are decoded through the intelligent pen, a local writing image is obtained after correction and restoration, and finally the local writing image is transmitted to the server; and the server summarizes the local writing images according to the position relationship corresponding to the code points to obtain the overall writing content. A common black and white printer can be adopted for printing operation, the printing cost is lower, the printing speed is higher, and the requirement for equipment is lower; meanwhile, the influence of damage of answer lines and local code points or unclear printing is avoided, and the automatic error correction capability is high; and meanwhile, the writing state and the pen holding state can be effectively monitored, and whether the pen is broken or not is monitored.

The present invention relates to the field of printing technology, and discloses a multi-channel coaxial nozzle of a 3D printer, comprising a first feed pipe, a plurality of nozzles installed at the bottom of the first feed pipe and connected to the first feed pipe, a second feed pipe installed at the bottom of the nozzle, a plurality of nozzle holes provided in the second feed pipe, and a material injection port provided on one side of the top of the second feed pipe, and also comprising a cleaning unit installed at the bottom of the second feed pipe; the cleaning unit comprises a cover plate rotatably connected to the bottom of the second feed pipe, a driving component installed at the bottom of the cover plate, and a cleaning component installed at the bottom of the driving component. After printing is completed, the bottom of the second feed pipe is covered by the cover plate to prevent dust, dirt and grease from entering the interior of the nozzle, shorten the maintenance time between each printing, increase the printing speed, save time and cost, and improve the printing efficiency.

The invention relates to the technical field of metal laser 3D printing manufacturing, in particular to a rapid printing method based on self-adaptive honeycomb zoning, which comprises the following steps: analyzing a printed part finished product through stress simulation software to obtain a stress distribution diagram of a to-be-printed area; honeycomb partitions with the same honeycomb unit size are constructed in the same printing coordinate system to cover the to-be-printed area; based on the stress distribution diagram of the to-be-printed area, honeycomb unit size self-adaptive adjustment is carried out on honeycomb subareas with the same honeycomb unit size of the printing area; and obtaining a printed piece based on the self-adaptive honeycomb partition as a printing track. According to the method, the sizes of the honeycomb units of the honeycomb subareas are adaptively adjusted, so that the stress of a large stress area is reduced, and the stress of each area of a workpiece is relatively average; meanwhile, the number of honeycomb partitions in a low-stress area is reduced, and the defect that the printing speed is low in traditional chessboard scanning or honeycomb scanning is overcome.

The application discloses a multi-station positioning device and a positioning method, which comprises a first conveying device and a second conveying device arranged in front of and behind each other and conveying glass in the same direction, a feeding area for placing glass is arranged on the first conveying device, a positioning swing piece mechanism for conveying glass along the width direction of the first conveying device is further arranged on the first conveying device, a positioning printing mechanism for printing glass is arranged on the second conveying device, and the first conveying device, the second conveying device, the positioning swing piece mechanism and the positioning printing mechanism are electrically connected with a controller. The application can simultaneously print multiple glasses in multiple stations, and can accurately position each glass, so that the printing effect is good.

An apparatus includes a carrier, an aperture, and a motion platform. The carrier is configured to secure a substrate. The orifice is configured to emit an aerosol jet. The motion platform is configured to move the carrier relative to the orifice with the orifice emitting a continuous aerosol jet to print a plurality of electrodes on the first major surface and edge surface of the substrate.