Forged Engineering and Construction Machinery Parts Wenzhou lianggong forging co.,ltd. is located in Wenzhou city of China. The factory was founded in 1985 and is a certified ISO9001:2015 manufacturer, specializing in forging and Machining Parts. The products are mainly used in construction machinery, agricultural machinery, forestry machinery, vehicle and motorcycle, high-speed railway, industrial valve, etc. We could also develop new products according to customer's specific requirements. Forged Machinery Parts,Hot Forging Engineering Machinery Parts,Forging Construction Machinery Parts,Forged Engineering And Construction Machinery Parts Wenzhou Lianggong Forging Co.,Ltd. , https://www.lianggongforging.com
Dr. Zhang Zeng Teng, Deputy Director, Weichai Power R&D Center
We have a mature production process from raw materials to forging, heat treatment, machining, surface treatment, etc. The materials include carbon steel, alloy steel, stainless steel, aluminum and cooper. The main forging press includes 300T, 400T, 630T, 1000T, 1600T and 2500T, which covers product weight from 0.1kg to 100kg. The main machining equipment includes lathe, planer, drilling machine, tapping machine, line cutting, milling machine, CNC machining center, polishing machine etc., ensuring that we can fulfill different machining requirements from our customers.
We have an individual team of well experienced QC staff and many high-educated technical engineers who work throughout the whole manufacturing processes i. e., incoming raw materials, production, and final output, to ensure that our products are of high-quality. The main inspection equipment includes chemical analyzer, hardness tester, tensile-strength tester, magnetic powder flaw detector, metallographic analyzer, etc.
High quality products, reasonable price, prompt delivery, and superior service ensure marketing competitiveness. Our factory has earned high reputation from customers of home and abroad. We are looking forward to cooperating with you to forge a better future!
Zhang Zengteng: State IV national V emission Weichai SCR engine is the mainstream
On March 27, 2012, at the 2012 Asian Diesel Vehicle Emissions Forum, Dr. Zhang Zengteng, Deputy Director of the Weichai Power Research and Development Center, told the China Truck Network reporter that in the future, emissions from diesel engines of State IV and State V diesel engines will be mainstream in the adoption of scr technology. It will be mainly used for heavy vehicles. Weichai also uses the SCR technology route in the national IV and national V emissions. Weichai also said that a variety of technical routes will be implemented in parallel. EGR technology may also be used for vehicles that have special operating conditions.
Dr. Zhang Zengteng told reporters that EGR technology is generally used only under special circumstances. For example, when frequent shutdowns and exhaust gas temperatures are low (below 200 degrees Celsius), the efficiency of the scr post-processing system becomes lower and it does not play a good role in reducing emissions. In addition, in terms of fuel consumption, the use of EGR technology to meet the use of SCR technology to meet the country IV country V emissions will have about 3-5% of the fuel consumption disadvantages, so that SCR technology has become the mainstream of commercial vehicle country IV countries V emissions. Weichai will adopt the combination of two mainstream technologies: SCR+EGR+DPF+DOC only in Europe VI and above.