Aerospace Seiko develops high-strength gear slot bolts to fill domestic gaps

Recently, the high-strength gear groove 120° countersunk bolt and gear groove 150° countersunk bolt standard parts developed by Aerospace Seiko Guizhou Company passed the assessment of AVIC experts. The high-strength gear slot bolts reviewed in this review are designed with the new material PH13-8Mo, which has a tensile strength of 1515 MPa. The Guizhou company adopted a new process technology for the new materials. After two months, it solved the technical difficulties and solidified the process, which made the production of the products successful in a short time. It is currently used for the first time on domestic aircraft models. Through the quality and installation review, the project not only satisfies the overall R&D progress requirements of China's new fighter models, but also contributes to the model product support, and at the same time marks the level of product development of Aerospace Seiko to a certain height, filling the gap of domestic related products. It also laid a solid technical foundation for Aerospace Seiko to expand the high-end product market.
In this review, 26 experts from AVIC 301, 611, Chengfei, Aerospace Henan, Guizhou and the military representative offices of Chengfei Company formed a review team to review the products. (Text / Xie Renjun)

Aerospace Seiko Enterprise News:

Xu Xiaofei, deputy general manager of Shanghai Aircraft Manufacturing Co., Ltd. visited the Aerospace Precision Industry Henan Company

Xu Xiaofei, deputy general manager of COMAC Shanghai Aircraft Manufacturing Co., Ltd. visited the Aerospace Seiko Henan Company. Xu Xiaofei, deputy general manager, listened to the introduction of Aerospace Seiko Henan Company on the ARJ21 aircraft fasteners supporting project, for Aerospace Seiko Henan Company The various work carried out in the previous period were fully affirmed and indicated that they would establish a healthy, harmonious and stable cooperative relationship with Aerospace Seiko. The two parties also held preliminary consultations on the signing of the ARJ21 aircraft fastener supporting framework agreement between Aerospace Seiko and Shanghai Aircraft Manufacturing Co., Ltd. It is reported that the aerospace fine work as a potential supplier of fasteners for the ARJ21 and C919 projects has been included in the QPL list of civil machine standard parts. (Text / Zhao Keshu)

1. Technical standard: BS EN 10202, DIN EN 10203, GB/T2520 , JIS G3303
2. Steel type: MR, SPCC
3. Thickness: 0.115 - 0.50 mm
4. Roll width:  600 - 1050 mm
Tin Coating: ordinary 2.8 or 2.8g and 5.6g or 5.6g, we can produce according to customer's requests
Widely apply to industrial packagings and food packagings.

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