Xican takes the lead in using vermicular iron to improve engine reliability

In today's increasingly environmental-friendly society, the engine is constantly being upgraded, and the explosion pressure is constantly increasing. How the engine cylinder head material adapts to the corresponding increase in the thermal load of the cylinder head becomes the current situation. The industry is in urgent need of solving the problems. Recently, FAW Xichai made significant progress in the manufacturing technology of vermicular iron materials and took the lead in realizing the industrialized application of high-strength vermicular cast iron on the cylinder head, which has been installed in batches into the market and has caused widespread industry insiders. attention.

FAW Xichai Aowei Engine

Break through traditional fearless exploration

Tracking Xichai's success in realizing the industrialized application of the technology of vermicular cylinder head cover material in commercial vehicles, each step is marked with the rigorous and meticulous team of the Xichai Casting Technology Group, dares to break through traditions and dare to challenge the limits of the brand. As early as 2010, Xichai inherited the advantages of vermicular cast research and comprehensively promoted the industrialization of high-strength vermicular cast iron, and finally achieved fruitful results.

As we all know, the difficulty in the casting of vermicular iron is that the stable area of ​​the vermicular iron is too small, and the size and position of the platform in the stable area vary with the product. Magnesium as a vermicularizer needs to be controlled very precisely. In order to solve the problems, the Xichai Foundry Crafts team and Tin Cast have started close cooperation. In 2010, the project team relied on independent technology and adopted the explosive method to produce a creep cylinder head with a creep rate of 60-80% and a tensile strength of the main body test rod of ≥ 380 N/mm2, and a diesel engine with a pressure of 180 bar was passed. 2400 hours of endurance test. On this basis, in order to improve the performance and stability of materials, the project team also developed a vermicular iron material with a tensile strength ≥450N/mm2 and adapted to a higher detonation pressure diesel engine in 2012 with international cooperation. Pearlite content and other key indicators reached a higher level, the process is also more stable. At the same time as the material research and development, the project team also started the research on the casting process of a new machine cylinder head using vermicular material, and solved the double water jacket structure problem. At present, the casting scrap rate has been controlled within a reasonable range, and the batch volume has been fully satisfied. Production requirements. In order to meet the low-cost requirements of some models, in 2014 the project team developed low pearlite vermicular iron materials with tensile strength ≥ 400N/mm2.

Cooperative development leads the industry

Due to the excellent mechanical properties of vermicular cast iron (CGI) and the large amount of desorption during the vermicularization process, the cutting load is increased by 20% to 30% compared to the gray cast iron in the graphite structure, and the cutting performance is drastically reduced. In the initial stage of trial production, in order to overcome a series of problems such as abnormal consumption of a wide range of tools for cylinder head machine tool addition and unstable accuracy, the Xichai project's craft team also established a research route for outreach, with Sandvik, Kennametal, Walter, Guhring, Mapal, etc. A group of world-renowned tool manufacturers have been working closely together. Through the combination of “special sample test + production line verification” in the laboratory, a comprehensive analysis and evaluation was made of the cutting performance, reference parameters, and machine tool fixtures of the vermicular iron materials, resulting in a relatively complete tool processing solution. The problem of the efficiency and cost of the vermicular engine. Since 2013, the creeper cylinder cap has been put into the market in batches. With its high reliability and stability, it has gained market reputation.

The facts prove that with high-strength vermicular cast iron, engine designers can improve engine performance, fuel efficiency and durability while reducing engine weight and noise and emissions. At present, Xichai has directly adopted the creeper cylinder heads on some models of the main platforms of the State V and State IV, and will gradually expand to cylinders and other important parts.

Xichai takes the lead in applying high-strength vermicular iron material technology to domestic commercial vehicle engines. Whether it is improving the reliability and brand reputation of diesel engines or considering energy saving and environmental protection, Xichai has important leadership in the application of new technologies in China's commercial vehicle industry. Sexual significance.

5.0-7.0 Ton LPG&Gasoline Forklift is one kind of Internal Combustion Forklift,the power is LPG or both.LPG & Gasoline combustion fully, improve the life of engine three times.It`s more clean than diesel forklift,and can work longer than Electric Forklift.

Application Area:

1. Warehouse

2. Port

3. Factory

4. Distribution Center

5. Logistics

If you have any other questions,please contact us directly.Our forklift are all with high quality,and you can choose any other engine to equip.It can be produced according to your idea.And we invite you to visit our factory.

5.0-7.0Ton LPG&Gasoline Forklift

7.0 Ton LPG&Gasoline Forklift,Forklift With Double Air Filter,High Standard Forklift,Big Ton Forklift

ZHEJIANG GOODSENSE FORKLIFT CO.,LTD , https://www.goodsenseforklift.com