The development of industrial printing technology in China is in full swing. It is understood that the traditional 3D printing is constantly being researched throughout the country and continues to break through. Recently, we have seen that the 3D printing industry has made great achievements in speed, precision and molding size, which indicates that China's 3D printing industry is on the right path step by step.

The reporter learned from the 3D Printing Innovation Institute of Nansha, Guangzhou on the 30th that the new 3D printer developed by the institute over a year is in the debugging stage and will be officially launched. It is understood that the printing speed of the product will be increased by several times, and the use of materials will be greatly expanded. Ceramic materials and metal filling materials can be applied to them, and can be applied to the fields of porcelain printing in the future.

On the morning of the 30th, when the reporter came to the Nansha 3D Printing Innovation Institute, the director of the institute, Xu Xiaowei, and the technical team were debugging the new machine. Xu Xiaoyu told reporters that this new 3D printer is actually a breakthrough and innovation of the traditional SLA (ie laser rapid prototyping technology, a branch of 3D printing technology) printer.

3D printing, the essence of which is additive manufacturing. The working principle of SLA is the technology of layer-by-layer curing of photosensitive resin and other materials by laser technology. After each layer is solidified in the trough, the workbench drops the height of a sheet, and the cured resin sheet is A layer of new liquid resin is covered for a second layer of laser scanning curing, and the newly cured layer is firmly bonded to the previous layer, which is repeated until the entire product is formed.

According to reports, there are three main problems with traditional SLA printers. First of all, the material has high fluidity requirements and can only be made with relatively thin materials, such as resins, plastics, etc., and has to discard high-viscosity materials. Secondly, after the workpiece is formed, it needs to be scraped with a scraper. In this process, the workpiece will have shearing force. The strong and precise support structure must be designed to fix the product. The final product will also have the support structure removed after printing, which will affect the workpiece. Such as causing spots, etc., and the process of supporting the product after completion is complicated, and the material is wasted, and the cost is also increased. Third, slow molding speed is another bottleneck in SLA printers. The paving process takes a long time, and it takes more than 10 seconds for each layer to be laid, and a workpiece often involves tens of thousands of layers, and more than 100,000 layers, which takes a very long time.

Xu Xiaoyu said that the 3D printer of the extrusion molding technology that the institute is debugging will solve the current problem. A major breakthrough in extrusion is the wider use of materials. Using high-pressure technology to spray materials, the viscosity of the available materials can be increased by 5-6 times, and the application range of materials can be expanded to produce ceramics, biomaterials, metal filling and other types of products.

Due to the increased viscosity of the material used, the material is separated from the molding process, there is no contact, the support requirement is reduced, the support structure is simplified to 10%-20%, and the cost is reduced, which is the second advantage of extrusion molding.

There has also been a big breakthrough in the layup time of the material. Extrusion molding takes only about 1 second for each layer of paving material, which is equivalent to 1/10 of the original. The paving material occupies 50% of the 3D printing process, so the overall printing speed has also doubled.

Xu Xiaoyu said that the surface size of the product can be 800×400mm, and the precision of the products produced can be made better. In the future, ceramics, biomaterials or metal-filled materials can be used to print porcelain teeth or Metal cutters. Taking porcelain teeth as an example, it is traditionally required for skilled workers to cut and wash materials on a grinding machine, which takes a long time, has large tool loss, and requires high labor. Fully automated production can be achieved with extrusion molding technology, and the cost will be greatly reduced.

Suitable use range:
      Banana, Mango, Tomato, Citrus, Melons......

  Product components and features:
      This product function components in Ethylene gas, in line with the national standard 
      GB9830-88 "fruit and vegetable cold storage after ripening" requirements, safety, no residue.

Ripener

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