On September 5, Ningbo Jiangfeng Hot isostatic pressing Technology Co., Ltd. ushered in a heavyweight product – oversize high-temperature nickel base alloy, which was slowly produced under the traction of a crane. This product is 4.1 meters high and weighs 3.5 tons. It is the largest Hot isostatic pressing technology oversize high-temperature nickel base alloy in China, breaking the limit of such products.
The successful production also means that the oversize Hot isostatic pressing equipment of Jiangfeng Electronics can provide support for the development of large-sized superalloys in China and fill the blank in this field.
“A team of 25 people has been researching and developing for 4 months. The whole development process is full of difficulties. Every step of the product from powder briquetting to vacuum pumping to Hot isostatic pressing has encountered various problems and challenges.” Cao Huanhuan, the general manager of the company, said. For example, due to the large size of the product, the conventional product only needs a few hours to be vacuumed, which took a full 10 days. There should be no negligence in this process. Otherwise, it may lead to a decrease in vacuum degree, or the negative pressure may turn into positive pressure when the furnace is discharged for pressure relief, which is more likely to cause product bulging and rupture, causing damage to the furnace body. How to heat up? How to boost pressure? How to improve accuracy?
The R&D team of “Jiangfeng” works almost 24-hour shifts, striving to overcome one problem after another in the shortest possible time. At the moment the product was released, the stone in my heart finally fell to the ground, “Cao Huanhuan said.
Ningbo Jiangfeng Hot isostatic pressing Technology Co., Ltd., a holding subsidiary of Ningbo Jiangfeng Electronic Materials Co., Ltd., is specialized in the R&D and manufacturing of various ultra-high purity Refractory metals targets, special ceramics and other new high-end materials, high-temperature and high-pressure densification treatment of various large structural castings, and large area diffusion welding treatment between dissimilar metals. This technology and product are widely used in industries such as semiconductors, aerospace, energy, automobiles, and biomedicine. The super sized Hot isostatic pressing equipment successfully developed this time can also be used for the production of super sized sputtering targets. Previously, China mostly used multi-stage splicing technology for large-sized targets, and this breakthrough also provided technical support for the company’s development of large-sized sputtering targets, which will effectively promote the continuous optimization of target performance.
(Source: Ningbo Science and Technology Bureau)