国产亚洲精品久久精品69-国产亚洲精品久久精品6-国产亚洲精品久久播放-国产亚洲精品久久7777777-亚洲 日本 欧美 中文字幕-亚洲 欧洲 国产 日产 综合

×

PPS + 3D Printing

Time:2021-08-18

Carbon neutrality, plastic reduction, green ...... These concepts have become a consensus in society. Manufacturing companies are in action, exploring the possibilities on the path of sustainable development. 3D printing, which has played an active role in lowering energy consumption and reducing carbon emission has risen to prominence.

 

What is 3D Printing?

3D printing, also referred to as additive manufacturing, is an advanced manufacturing technology originated in the 1980s that integrates computers, machinery, CNC and materials.

 

Compared to traditional subtractive manufacturing (e.g. cutting) and equivalent manufacturing (e.g. forging), this mode of production barely has any material waste, resulting in both cost savings and environmental benefits. It can even localize the production and reduce transportation. After paying for the ‘drawings’, customers are able to print the required products locally, thus reducing the need of line-haul and the greenhouse gas emission that comes with it.

 

Limitations of Traditional Printing Materials

At present, 3D printing mainly uses resin and plastics as the materials. The most rapidly developing plastic material, polypropylene (PP), has great potential for application in the field of 3D printing due to its low density, high strength, good heat resistance and insulation, chemical stability and low price.

 

However, the process of melt crystallization causes great shrinkage in PP, which makes it prone to warping and deformation during 3D printing. The final product may therefore be less accurate than desired. In addition, the printed product is of low toughness and high loss, often ending up of having no actual use.

 

New Materials Driving the Development of 3D Printing Technology

NHU’s new material research team has dived headfirst into the emerging field of 3D printing since 2019 and has successfully developed polyphenylene sulfide (PPS), boosting the development of 3D printing technologies.

 

 

PPS is a thermoplastic material with excellent performance in heat resistance, chemical resistance, flame retardancy and electrical properties. It has a heat deflection temperature of 260°C and a long-term service temperature of over 200°C. In addition, its chemical resistance is second only to fluorine resins, and it has a V-0 flame rating. When ground into powder, it has high fluidity; when spread out,the powder bed is leveled and smooth, resulting in high accuracy for 3D printing.

 

According to the R & D staff, the particle size of the material has been one of the key factors affecting the structure and performance of 3D printed parts. PPS micro powder effectively addresses the limitations of the particle size of the material, promoting its application in 3D printing. With excellent thermal stability, PPS micro powder can be recycled multiple times, greatly reducing the cost of printing. This backs up the argument of the pollution-free benefit of 3D printing.

 

The new PPS material developed by NHU has been widely used for areas of low-carbon emission and environmental protection. For example, PPS filter-bag made of PPS resin has been installed in dust collectors in domestic coal-fired power plants, reducing the smoke emissions of the plants; NEV parts made of PPS materials reduce the weight of the vehicle and its battery and increase the mileage and energy utilization, contributing to sustain

Back To List

Learn more

主站蜘蛛池模板: 四虎永久在线精品免费A | 97成人精品视频在线播放 | 在线中文字幕视频 | 狠狠躁日日躁人人爽 | 男人j进女人j一进一出 | 久久久国产精品免费A片蜜芽广 | 成人在线观看国产 | 美女叉腿掰阴大胆艺术照 | chinese东北夫妻video | 尿了么app | caoporn 在线视频 | 国产亚洲精品久久久久小 | 四川老师边上网课边被啪视频 | 添加一点爱与你电视剧免费观看 | 天美麻豆成人AV精品视频 | yellow日本动漫免费观看 | 久久久97丨国产人妻熟女 | 国产精品99久久久久久AV下载 | 鲁大师影院在线视频在线观看 | 精品AV亚洲乱码一区二区 | 在线精品一卡乱码免费 | 再插深点嗯好大好爽 | 国产成人亚洲精品午夜国产馆 | 中国拍三a级的明星女 | free18sex性自拍裸舞 | 欧美在线亚洲综合国产人 | 国产乱人偷精品视频A人人澡 | 国产99视频在线观看 | 日本国产成人精品无码区在线网站 | 欧美 亚洲 日韩 在线综合 | 久久高清内射无套 | 先锋影音 av | 色欲精品国产AV久久久 | 国模孕妇模特季玥之粉红 | 恋夜直播午夜秀场最新 | 强行撕开衣服捏胸黄文 | 无人在线观看免费高清视频播放 | 欧美人妇无码精品久久 | 免费精品国偷自产在线在线 | 欧美写真视频一区 | 成人a毛片久久免费播放 |