Technical R&D Capability

As a national high-tech enterprise, NHI has national technology center, state key laboratory of full-section tunneling machine. NHI cooperates with the academicians and post doctors in research and exploration, who has a complete design, process, manufacturing system and the talent team, with decades of major product development experience, for the tunnel engineering, metallurgy, mining, coal, electric power, building material, port, chemical and other industries to provide tunnel excavation, sand and gravel aggregate, crushing grinding, mineral dressing, sintering pellets, metal rolling and dressing shearing, bulk material transporting and handling, synthetic excavating and other major technology and equipment research and development, design and turnkey project services.

As a hundred years of history of China's top 100 machinery industry enterprises, NHI has obtained more than 300 patents, including more than 140 valid patents up to now, developed 180 sets of new products to fill the national gap, undertook 8 major national projects, and won more than 200 national, provincial and municipal science and technology awards. The tunnel boring machine, ball mill, coal mill, cement vertical roller mill, large bulk material handling and conveying equipment and other 12 categories of products won the Chinese famous brand, Liaoning famous brand, Shenyang famous product title etc.

TESTING CENTER

The Testing Center of Northern Heavy Industries Group Co., Ltd.(NHI) (hereinafter referred to as the Laboratory) was accredited and evaluated by the China National Accreditation Service for Conformity Assessment (CNAS) in January 2023, with 15 testing capabilities in 3 categories and 6 calibration and measurement capabilities. It is a metal material testing and calibration laboratory that integrates physical and chemical inspection, non-destructive testing, metrological calibration, and measurement. There are currently 19 measurement standards authorized by the Market Supervision Administration of Tiexi District, Shenyang City, covering measurement majors such as length, thermodynamics, mechanics, and electricity.

The Laboratory has three departments: Physical and Chemical Department, Ultrasonic Testing Department, and Metrology Department. The Physical and Chemical Department is mainly engaged in mechanical property testing of various ferrous metal and non-ferrous metals, metallographic structure inspection, chemical composition analysis, and oil and grease analysis; The Ultrasonic Testing Department is mainly engaged in ultrasonic, magnetic particle, and penetrant non-destructive testing of castings, forgings, welded parts, and plates; The Metrology Department is mainly engaged in geometric measurement, calibration and verification of measuring instruments, pressure gauges, thermal and electrical instruments.

The Laboratory has strong technical strength. 21% of the personnel hold senior technical titles and possess qualifications as Level 3 non-destructive testing personnel for ultrasonic, magnetic particle, and penetrant testing, as well as qualification of Level 1 and Level 2 registered metrologists. All technical personnel are authorized as testing personnel by institutions such as the State Administration for Market Regulation, Liaoning Provincial Administration for Market Regulation, and Shenyang Machinery Industry Physical and Chemical Management Association.

The Laboratory equipment is advanced. We have advanced instruments and equipment at home and abroad, including Carl Zeiss 6-meter length measuring machine, API laser tracker, Optiv performance662 composite image measuring instrument, microcomputer controlled electronic universal testing machine, microcomputer controlled electro-hydraulic servo universal testing machine, microcomputer controlled pendulum impact testing machine, Olympus metallographic microscope, PDA-7000 photoelectric spark spectrometer from Shimadzu Corporation in Japan, iCAP6300 inductively coupled plasma emission spectrometer from Thermo Electron Corporation in the United States, AA700 atomic absorption spectrometer from PerkinElmer Corporation in the United States, and USN60 ultrasonic flaw detector from GE.

The Laboratory will adhere to the principles of "scientific rigor, standardized accuracy, professional efficiency, integrity innovation ", adhere to modern scientific management concepts, continuously improve technical level, enhance service quality, and strive to build the Testing Center of NHI into a metal material testing and calibration laboratory with industry influence and credibility.

TEST & RESEARCH BASE

A test &research base of high level is a must to ensure the in-house development of an enterprise.NHI has established a test & research center covering an area of 10000 square meters. To satisfy the test and research requirement on NHI’s major equipment, total 5 laboratories are established respectively for mining washing, cement, belt conveyor, full-section tunnel boring machines and electrical equipment. Among them, national, provincial and municipal level test platforms are:

The State Key Laboratory of full-section tunnel boring machines is a state-level key laboratory set up by NHI with the approval of the Ministry of Science and Technology in 2011. The total area of the laboratory is over 6000 square meters. It has a variety of different types of laboratory equipment such as “Full-section tunneling machine comprehensive test bench”, “Φ3. 2m Multi-function full-section tunneling test machine”, “hob rock broken and wear-resisting test bench” , etc. According to the requirements of tunnel construction development, a number of core technology research such as cutter head, cutter, drive, seal, control, measurement from product design, equipment manufacturing, assembly commissioning and other aspects.

Large complete set of mineral milling equipment specialized technical innovation center of Liaoning province, mainly carries out experimental research on related fields of Sand and gravel aggregate, mining grinding. Now the center has a total area of 2062m2, including pilot test laboratory of 1500m2, small test laboratory of 586m2, and a total of 175 sets of equipment. The center not only provides a key test platform for NHI, but also provides paid technical support and technical services for industry users.