Professional engineering fastener manufacturer: long product chain, wide standard coverage, variety of materials, complex application environment
 
Shaoxing Shan Nai High Voltage Fastener Co., Ltd. is a professional engineering fastener manufacturer integrating design, production, testing, and self-operated import and export. It was established in October 2004 with a registered capital of 30 million yuan and a production room of 16500 square meters. The number of employees is 140, including 35 professional and technical personnel. The main products are M3-M150;1/16 "-6" high-pressure, high-temperature, corrosion-resistant high-strength bolts, studs, nuts, gaskets. Product standards cover national standards (GB); American standards (ANSI/ASTM); German standards (DIN); Japanese standards (JIS); Nuclear power standards (RCC-M, ASMENQA-1-1994); Petroleum industry standards (SH, SHJ); Chemical standards (HG, H); Electric power standards (GD); Mechanical standards (JB) and non-standard provided by customers. Since its establishment, the company has been focusing on manufacturing fasteners with high precision, high strength and strong corrosion resistance, serving nuclear power, petroleum, chemical, electric power, pressure vessels, machinery and military industries with high engineering safety factors.
 
Professional ERP production software, full traceability of products to ensure adaptation to different quality assurance systems
 
Quality is the survival of the company. The company has passed the ISO9001:2008 quality management system certification, environmental management system certification, occupational health and safety management system certification, measurement system management certificate and the national bureau of quality and technical supervision of the pressure pipeline components manufacturing unit safety registration certification. And passed the Xingyuan Certification Center certification of China National Nuclear Corporation qualified supplier certificate. The company has established a quality assurance program based on HAF003, ASME NQA-1, NCA-3800, the company according to the nuclear grade fastener quality assurance program has been running for more than 10 years, the system construction is basically mature. In view of the characteristics of nuclear and non-nuclear grade fasteners of nuclear power projects, such as miscellaneous varieties, many specifications, wide materials and high requirements, the whole process traceability control is carried out in strict accordance with the raw material smelting furnace number and heat treatment batch number in the process of preparing raw materials, manufacturing, inspection, marking, packaging and completion documents.
 
 
Participate in the development of international standards, the industry's outstanding special APS lean production management software
 
The company participated in the formulation of ISO/TC2 (fasteners) international standards in Sydney, Australia in 2012 and Paris, France in 2013 as a member of the delegation of the Chinese National Standardization Committee. It has participated in the revision of international standards and national standards for 6 consecutive years. The company was recognized as a science and technology enterprise in Zhejiang Province by the Department of Science and Technology of Zhejiang Province in December 2009. In order to further improve product quality and production management level, the company and Zhejiang University jointly developed a special software for fastener production-Shaoxing Shannai Production Lean System Project, which was appraised and accepted by Shaoxing County Science and Technology Bureau on April 30, 2010. In order to better serve the nuclear power field, the company, as the main drafting unit, officially issued the "Made in Zhejiang" standard "Nuclear Grade Bolts and Studs for PWR Nuclear Power Plants" on November 15, 2018.
 
 
Complete production equipment, complete testing means, sufficient inventory support to ensure a flexible production system
 
The company is equipped with a complete set of fastener production equipment, which can complete a complete set of testing equipment such as bolt, nut forging, thread forming, product heat treatment, product chemical element analysis, physical structure metallographic analysis, mechanical performance testing (high temperature tensile at 350 ℃, low temperature impact at -110 ℃), magnetic particle testing, penetrant testing, ultrasonic testing, visual testing, etc. In particular, it has excellent domestic fastener red punch forging technology and equipment, which can meet the forging of hexagonal bolts from M3-M150 mm to 6-6000mm in length. As a professional manufacturer of engineering fasteners, the company's flexible production system can timely cope with the different requirements of delivery speed at different stages of the project and the different complex requirements of different devices and different use environments in the project, especially the late additions and design changes of large nuclear power and chemical projects. The company's warehouse is equipped with nearly 1,000 tons of various specifications of carbon steel, alloy steel, stainless steel, heat-resistant steel, and various rare raw materials and finished products to ensure various needs of customers.
 
Excellent nuclear power supply performance, excellent delivery quality
 
At present, the main customers supplying nuclear power fasteners are: National Nuclear Power Engineering Co., Ltd. (AP1000), China Nuclear Power Engineering Corporation, Fujian Fuqing Nuclear Power Plant, Shandong Nuclear Power Equipment Manufacturing Co., Ltd., Dongfang Electric (Guangzhou) Heavy Machinery Co., Ltd. and other nuclear power supporting enterprises. It can fully adapt to the characteristics of nuclear power fastener materials, high quality index, product traceability and data traceability. In the process of cooperation with nuclear power supporting enterprises, the quality of delivery, delivery documents and delivery time are well received by the owners. In particular, it has been subject to a major inspection of nuclear power fasteners for 4 months since July 2015, and all quality documents and original records from the supply in 2008 to the 7 years since 2015 have been checked. At the same time, each nuclear power customer unit has passed the evaluation of the company's quality assurance system, personnel qualification and production capacity. At present, the nuclear power projects undertaken by the company include: the pipeline system and equipment fasteners of Fuqing units 1, 2, 3, 4, 5 and 6 of China Nuclear Power Engineering Co., Ltd., and the pipeline system and equipment fasteners of Tianwan units 5 and 6. Pipeline system and equipment fasteners, CAP1400 personnel gate and equipment gate fasteners of AP1000 project of CNNC Engineering Co., Ltd. March 2019 Zhongbiao National Nuclear Engineering Co., Ltd. demonstration project nuclear-grade fastener project. The company takes the development of nuclear power fasteners as an important development direction of the company. With a rich variety of products, flexible production system, complete production testing equipment and continuous improvement of quality assurance system, it focuses on packaging fasteners for large domestic and foreign petroleum and petrochemical enterprises, electric power, nuclear power installation, pressure vessels and other high-end engineering companies. service.
 
Continuously improve the quality management system, fine product quality, product quality, quality assurance documents traceability closed-loop management, to meet customer needs is the company's pursuit. All our efforts are committed to creating the brand of Shannai engineering fasteners.