On April 28, 2020, two new precision casting production lines based on RHEOMETAL AB Semi-solid metal casting / Rapid Slurry Forming (RSF) technology invested by FJJR Light Alloy Technology Co., Ltd., a global leading leading light alloy precision casting manufacturer in China, were successfully put into production .
So far, the company has a total of 8 such casting lines.
After the release of China's new infrastructure strategy, orders for 5G communications equipment hardware have skyrocketed. With the rapid addition of the newly added 4000-ton die-casting production line, the company effectively seized market opportunities. However, as of the end of April, the company had 8 production lines in production.
FJJR Light Alloy Technology Co., Ltd., established in 2013, is now an excellent supplier of Chinese communications equipment giants such as ZTE and Huawei. The company has achieved sales of more than 100 million in just 3 years. Now customers are often Invite FJJR's technical team to carry out simultaneous engineering.
FJJR is of irreplaceable importance in the field of high-end precision die-casting products in the communications field, and the weight that made him rise quickly is the Rapid Slurry Forming (RSF) technology of semi-solid die-casting. He used 5 years of research and development of semi-solid technology and accumulated a lot of knowledge before realizing large-scale production. He entered the communications field and quickly introduced it to the market. He was favored by ZTE and Huawei. This year, he also introduced the international advanced 3000T automatic die-casting island The province's largest die-casting production line so far.
Heat dissipation + weight loss leads the communications industry
Since FJJR introduced RSF semi-solid pulping technology from Rheometal AB in Sweden in 2008, it took 5 years and invested a lot of personnel, equipment development, verification, and perfection of aluminum alloy semi-solid die-casting molding technology. Chemical production is the first enterprise in China to realize the large-scale industrial production application of semi-solid molding technology.
There are two main types of semi-solid metal processing technology: rheology and thixotropy. FJJR adopts semi-solid metal rheology technology, and directly casts the slurry after making the slurry. To a certain extent, this not only simplifies the molding process, but also reduces processing costs. Semi-solid castings have won the competition of various manufacturers with good compactness, forming ability and heat conduction effect.
FJJR's semi-solid die-casting Rapid Slurry Forming (RSF) technology is favored by ZTE and Huawei. It uses semi-solid technology to mass-produce filter housings.
Advanced 3000T fully automatic die-casting island
"The advantages of using semi-solid technology to produce communication products are obvious!" Zheng Jiangshui, manager of the FJJR engineering department, said that the ultra-thin wall forming ability of semi-solid technology is very good, and the thickness of the heat dissipation teeth of the product can basically reach 1.2mm or less 0.9mm, which can not only help the product to quickly dissipate heat, but also reduce weight by 30%, because the base stations equipped with filters are mostly built on mountainsides and highlands. For operators, a 30% weight reduction means less materials and Handling costs, and the larger the product, the more prominent the advantages. At the same time, due to a better microstructure, the thermal conductivity of semi-solid products is 50% higher than that of general die castings. It is also a great advantage for products with heat dissipation requirements.
In addition, the semi-solid technology die-casting products have less deformation, and some products do not even require CNC processing, which further saves the operator's processing costs.
Participate in the research and development of ZTE products to accelerate the arrival of the 5G era
Because of the many advantages of semi-solid molding, FJJR has become a stable partner of ZTE and Huawei, and the annual output of these two giant companies reaches 400,000 pieces.
More importantly, as a semi-solid technology supplier, FJJR can directly participate in the development process of ZTE's new generation of products. In recent years, ZTE has actively deployed 5G base stations and related products. Among them, the designed filter housing is more integrated, larger in size, 700 mm long and 400 mm wide. Design, and the middle is disconnected, the heat dissipation chamber is higher, and the internal shape is more complicated.
"We will seriously evaluate whether the product can be molded with semi-solid technology and give our own suggestions," of course, ZTE also put forward higher molding requirements, even if the size is larger, but the weight should still be controlled within a certain range, The wall thickness is also maintained at 2.5mm like small products, and the heat dissipation teeth are only 1.2mm. It is difficult to imagine that such a difficult product that many die-casting experts are afraid of, the trial mold was very successful, and it was quickly put into mass production. The effect is much better than ZTE's imagination, and it has been highly praised.
5G base station filter housing produced by FJJR
Considering that the requirements for product molding will become higher and higher in the future, in addition to selecting higher-level machines, Jinrui Hi-tech has developed the latest generation of semi-solid pulpers, and is also equipped with advanced robotic automatic intelligent production systems, including removal, robot spraying, Product photoelectric detection, slag removal, air cooling, servo sawing, mixed pressure delivery, product transportation, waste chute and other automated equipment realize fully automatic production. The function is more comprehensive and powerful than previous die casting production lines, further ensuring product accuracy and qualification rate.
With the large-scale application of semi-solid technology in the field of communications, FJJR's next goal is to enter the automotive field and design new semi-solid die-casting parts with the OEM R & D team of automobile manufacturers. At present, he has started research and development with some new energy automobile manufacturers ,Exchange and cooperation.