'I really did not expect that the engines of big companies such as Beiqi, SAIC and Fiat are all equipped with Tianrun products.
'Look, this is a crankshaft made for a Daimler-Benz engine.'
At the China International Foundry Expo 2017, the crankshaft exhibits of Tianrun Crankshaft Co., Ltd. (hereinafter referred to as 'Tianrun Co., Ltd.') attracted the attention of many visitors.In the development of the ductile iron crankshaft, Tianrun Co. took the lead in adopting the QT900- 5 materials, adhere to independent innovation, capture the core technology to fill a number of gaps at home and abroad, as China's crankshaft industry leader, and continued for Weichai, Xichai, Cummins, Caterpillar, Cummins, Daimler and other domestic and foreign Well-known engine plant supporting.
The QT900-5 crankshaft has many advantages such as excellent mechanical properties, low production cost and relatively low quality. Its research and development and application are pioneered at home and abroad, providing a cost-effective option for high-power high-speed supercharged engines and will inevitably lead to A revolution in the heart of a car engine.
Survival ahead of schedule
Crankshafts are the heart of a car, if the engine is compared to the 'heart' of the car. As an important part of an engine that receives impact loads and transmits power, crankshafts are subjected to bending and shear caused by alternating loads during their work Shear stress, fatigue, wear and strength and other performance indicators have very high requirements.
At present, the crankshafts of automotive engines are made of ductile iron and forged steel.Nodular cast iron has good machinability, easy to obtain the ideal structural shape, can be a variety of heat treatment and surface hardening to improve the anti-fatigue strength of the crankshaft, hardness and Abrasion resistance.Early internal combustion engine power density is low, the outburst pressure is almost all below 12MPa, crankshaft bearing less load, making the ductile iron crankshaft due to good performance, low cost has been widely used.In the past decade, the internal combustion engine power density continues to increase , The basic pressure in the explosion 14 ~ 20MPa, the crankshaft to withstand the load increased by 45%, ordinary ductile iron crankshaft can no longer meet the performance requirements forged steel was gradually replaced, which started on ductile iron Tianrun shares caused A lot of pressure on the business.But at the same time, Tianrun shares also soberly aware of the ductile iron has many advantages, the extensive use of the engine on the energy-saving emission reduction and car lightweighting, etc. Therefore, Tianrun Shares in the development of high-performance ductile iron on the road, no regrets to seek more than a decade.
Set wisdom to tackle fear not difficult
The road of struggle has never been flat, but the dream-catching people will not hesitate to retreat.Tianrun shares this 60-year history of the traditional foundry business, has always been to shoulder the important task of the era of Chinese national industry to the world 'as their own business Mission, research and development of ductile iron material and its application in crankshaft of high-power high-speed supercharged engine is a new challenge to the unknown field.In the hard way, Tianrun shares never stop, the direction Always firm.
Tianrun shares research team began in the 90s of last century embarked on a long, tortuous and difficult technical tackling the road.Facing the unprecedented new technology, the domestic few new materials, no reference to the new technology, the beginning of the research, R & D team It was found that the actual difficulty is much larger than expected.Experienced the study, test, failure, and then study, re-test, again failed ... ... cycle back and forth, lasted more than a decade in the test failed hundreds of times, the harvest Finally, Tianrun shares QT900-5 material properties higher than similar international highest level of ductile iron. 'Hardship, Yu Ru Yucheng', Tianrun shares of this sticking finally make the national industry once again shine on the world stage.
Tianrun shares widely used in the community melting of high-quality scrap miscellaneous steel melting, developed QT900-5 ductile iron body tensile strength ≥ 900MPa, elongation ≥ 5%, compared with the same high-strength conventional ductile iron, its Plastic index increased by 150%, toughness increased by about 70%, fatigue limit increased by about 28% .This material, Tianrun shares Weichai developed Steyr series of ductile iron crankshaft, with the original design of 45 # steel and 42CrMo nitride Compared with the traditional ductile iron production, the production of QT900-5 not only saves a lot of steel, but also saves the processing cost of the product, so it can save the cost over 30% ; At the same time, QT900-5 crankshaft without quenching or nitriding, to avoid waste water and exhaust emissions.
Tianrun shares has now formed 40,000 tons / year QT900-5 crankshaft production capacity, the past three years to achieve sales revenue of 1.016 billion yuan, profits of 152 million yuan in the industry, Tianrun shares for the first time realized a high-power high-speed pressurization Engine crankshaft to iron and steel, the OEM purchase price to reduce about 30%, reduce the cost of more than 40 million yuan / year, saving more than 20,000 tons of steel, saving more than 400,000 degrees. In addition, the day run shares autonomy The development and application of 'Tin-Molybdenum High Toughness Ductile Iron Crankshaft Manufacturing System Project' was awarded the first prize of China Machinery Industry Scientific and Technological Progress Award and the project of "Development and Application of Energy-saving and Environment-friendly Ductile Iron Crankshaft Manufacturing Technology" by Shandong Science Technology Invention Award first prize, "micro-tin high toughness ductile iron key technology and power machinery core components of industrialization" won the second prize of national science and technology progress award.
Strong technical R & D and innovation, not only for the company won in the industry an absolute right to speak, but also won the favor of domestic and foreign famous companies, supporting high-end market to achieve the goal.
Innovative drive to start again
Innovation is the eternal motivation of the enterprise, Tianrun shares are not satisfied with the achievement of phased achievements, but increase investment in technology research and development and continue to maintain its technological superiority.
In recent years, Tianrun has set up a number of forging, casting and heat treatment production lines with international advanced crankshafts and connecting rods, and has formed an annual output of more than 180 types of more than 1.8 million high-quality forged steel crankshafts and ductile iron crankshafts and 2.8 million The company has set up the first Crankshaft Engineering Technology Research Center and the National Technology Center in the same industry in the same industry in China with the support of about 100,000 tons of castings and 120,000 tons of forgings. The company has also established 'Postdoctoral Research Station' and 'Academician Workstation' ; Built a domestic first-class physics and chemistry laboratory, equipped with nearly 100 sets (sets) the most advanced precision testing equipment; met with Shandong University, Harbin Institute of Technology, Dalian University of Technology and other institutions of higher learning to establish a long-term cooperative relationship, laid the day Run shares of 'production, study and research' combination of the development of the road. Tianrun shares has also assumed and completed the national 863 / CMS plan, the state's key new products, the state Torch Program and Shandong Provincial Science and Technology Plan and other provincial-level scientific research projects 30 The remaining items, the provincial and ministerial level above science and Technology Award 9, more than 100 national patents, has passed the ISO9002, QS9000, TS16949 international quality system certification, ISO14001 environmental management system certification, CRCC railway product certification and the world's nine major classification societies certification.
Through continuous technical innovation and large-scale introduction of process equipment, Tianrun shares now owns a large number of sophisticated processing equipment imported from developed countries such as the United States, Italy, Britain and Germany. By accelerating the implementation of automation and digital transformation, Tianrun The shares fully realized fully automated production.
Tianrun shares adhering to the road of development combining production, study and research, focusing on improving R & D capability and innovation capability, taking science and technology innovation as an inexhaustible motive force for the rapid development of enterprises, continuously increasing R & D of core technologies, successfully breaking the monopoly of foreign technologies and using Excellent quality and competitive products won the initiative in the fierce market competition.Now, Tianrun shares has formed a complete industrial system with independent intellectual property rights and can independently design, development, trial production, become China's crankshaft industry's leading enterprises Tianrun shares has a perfect marketing network system, the establishment of more than 200 key regional agents and monopolies, products covering 31 provinces and cities nationwide, the dominant product market share of 40%. At the same time, the product with the host sold 20 In some countries and regions, the installed capacity of main machines reaches 60%. Some series of products as well as castings products are directly exported to the United States, Britain, Italy, South Korea, Turkey and other countries, enabling advanced 'made in China' to go out of the country and into the world , And in the international market Hyun-run shares of the 'brand name' crankshaft products.