On December 26, 2018, it was learned that the three series of standard engine products D, 4.0, 4.5 and 6.7 produced by Dongfeng Cummins passed the auditing section of the Ministry of Industry and Information Technology and announced the storage. The announcement of the engine by the Ministry of Industry and Information Technology is a key part of the vehicle certification. After the announcement is completed, the vehicle manufacturer using these three engines can directly quote the declaration work of the national six vehicle. What is more noteworthy is that the 4.0-displacement and 6.7-displacement engines that were announced for storage are the first domestically-developed engines of the same level to achieve the national six certification. At the same time, Dongfeng Cummins engine products, which are the first to complete the certification, are also self-evident. It will also win valuable time for vehicle OEM partners to seize market opportunities. Now, these two engines that have completed the National Six certification have entered the comprehensive testing phase. In the midwinter season, all the way to the north. Following the successful high-temperature, high-altitude test, the team that took the Dongfeng Cummins Six D4.0 and D4.5 engine cold test missions from Fuyang, crossed over a thousand kilometers and arrived in Heilongjiang Heihe. The test team consists of product engineers, performance engineers and test engineers. The test team on the road matches the engine and the vehicle under different climatic conditions, including engine cold start capability, thermal management system, regeneration of aftertreatment system, and urea thawing. A series of working condition data such as sensor cold calibration are used for detection and monitoring. After arriving in Heihe, the test team began a more rigorous and comprehensive cold test of the engine. The Dongfeng Cummins 6 standard engine is derived from the iterative upgrade of the second generation of Euro 6 technology. It adopts non-EGR design and upgrades the intelligent electronic control system and emission treatment system, which makes the long-term realization of the national six emission standards and improves the reliability of the engine. , power and fuel economy. In addition, thanks to the upgrades and improvements of various systems, the ride comfort of the engine has also been greatly improved. Dongfeng Cummins D series engine, based on the platform developed by Cummins and Dongfeng, has been rooted in China for many years, and has won good user reputation from Guosan, Guosi, and Guowu. The three D-series National Six engines that have been certified this time are based on the new development of China National Sixth Market, which is suitable for light and medium-sized commercial vehicles, serving inter-city and urban transportation. Has the following characteristics: 1. Power is strong, and the torque is outstanding. 2. Highly integrated, significantly reducing the number of parts 3. Lightweight design, significant self-weight advantage 4. Reliability improvement, higher attendance and durability 5. Highly intelligent, more intelligent experience It is understood that Dongfeng Cummins will continue to achieve the national six certification, from 4.0L to 14L, supplemented by the global service capacity of the country, Dongfeng Cummins will provide complete power solutions for OEM customers. Welcome to the country's six winds, Cummins has long been ready and standing at the forefront and has been working hard Cobalt-based alloy powders are commonly used in plasma transfer arc welding (PTAW) due to their excellent high-temperature properties and resistance to wear and corrosion. These alloys are typically composed of cobalt as the base metal, with various alloying elements such as chromium, tungsten, nickel, and carbon added to enhance specific properties. Co Powder,Cobalt 6 Powder,Cobalt 12 Powder,Cobalt 21 Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.xtcmetalpowder.com
Dongfeng Cummins Six Engine 
Engineers perform winter engine maintenance on the road 
Harbin with a temperature of minus 15 °C 
Dongfeng Cummins Sixth Engine conducts full-scale type certification test at Xiangyang Automobile Testing Center
The use of cobalt-based alloy powders in PTAW offers several advantages, including:
1. High-temperature strength: Cobalt-based alloys exhibit excellent strength and resistance to deformation at elevated temperatures, making them suitable for welding applications that involve high heat.
2. Wear resistance: These alloys have a high hardness and resistance to wear, making them ideal for welding applications where the welded parts are subjected to abrasive or erosive conditions.
3. Corrosion resistance: Cobalt-based alloys offer good resistance to corrosion, making them suitable for welding applications in aggressive environments, such as those involving chemicals or saltwater.
4. Thermal conductivity: Cobalt-based alloys have good thermal conductivity, allowing for efficient heat transfer during welding and reducing the risk of heat-affected zone (HAZ) defects.
5. Compatibility with other materials: Cobalt-based alloys can be easily welded to a wide range of base metals, including stainless steels, nickel alloys, and other cobalt-based alloys, providing versatility in welding applications.
To use cobalt-based alloy powders for PTAW, the powder is typically fed into the plasma arc using a powder feeder. The powder is then melted by the high-temperature plasma arc and deposited onto the workpiece, forming a weld bead. The specific welding parameters, such as arc current, travel speed, and powder feed rate, will depend on the specific alloy and application requirements.
It is important to note that the selection of the cobalt-based alloy powder should be based on the specific welding application and the desired properties of the final weld. Different cobalt-based a
Dongfeng Cummins has been at the forefront in the six-party array of the country
From July 1st, 2019, some cities in China will take the lead in implementing the six-emission standard for heavy-duty vehicles. As a well-known power solution provider, Dongfeng Cummins has already comprehensively deployed engine R&D and testing to meet the national standard to ensure the success of the OEM partners. Achieve product emissions upgrades.