On December 26, 2010, the China Federation of Industry held the appraisal meeting of “Heavy-duty diesel engine key technology and WP10/12 series engine†project appraisal in Weifang, and Weichai “Key technology of heavy-duty diesel engine and WP10/12 series engine†project successfully passed. Identification.
Accompanied by Sun Shaojun, Executive Director of Weichai Power, Vice President and Director of Technical Center Miao Dehui, 10 experts including Ma Jingkun, Director of the China Federation of Machinery Industry and Jin Donghan, Academician of the Chinese Academy of Engineering, visited the Weichai Power Foundry Industrial Park and the High-tech Zone machining. Industrial parks, science and technology pavilions, and the new experimental center of the technology center under construction.
Sun Shaojun, on behalf of Chairman Tan Xuguang, welcomed and thanked the appraisal committee leaders and experts for visiting Weichai, and detailedly described the measures taken by Weichai in research and development, talent management and application, and product R&D capacity building in recent years. Achievements. The technical staff of the project team reported the progress of the WP10/12 series engine project and answered the questions of the experts one by one.
The experts of the appraisal committee carefully listened to the report of the project team, reviewed the relevant technical documents, and passed on-site examinations and inquiries, and finally agreed that the power, economy, reliability, and safety of the WP10/12 series Lanqing heavy-duty diesel engine. Emission performance and vibration noise performance meet or exceed the international advanced level, with dozens of patents, significant economic and social benefits, good response after users use, the appraisal committee unanimously passed the technical appraisal, and proposed to further expand the product power range to meet the market demand.
The plastic bumper is made of plastics, mainly polyester and polypropylene, which are made by injection molding. For example, the bumper of Peugeot 405 car is made of polyester and made by reaction injection molding. Volkswagen audi 100 Golf Shanghai Santana Tianjin xiali model car bumpers, adopted polypropylene materials made from injection molding in Abroad have a called polyethylene carbon ester plastic, seeping into alloy composition, using the method of metal injection molding processing of bumper not only has high strength, rigid, also has the advantages of can welding and coating performance is good, in the amount of cars more and more.
Bumper has safety protection decoration vehicle and improve the aerodynamic characteristics of the vehicle and other functions from the safety point of view, the car can play a buffer role in low-speed collision accident, protect the front and rear body; In the event of an accident with pedestrians, it can play a certain role in protecting pedestrians. From the appearance, it is decorative and becomes an important part to decorate the appearance of cars. At the same time, the car bumper has a certain aerodynamic effect at the same time, in order to reduce the car side collision accident on the occupant of the injury, in the car is usually installed with a door bumper, in order to enhance the door impact force of the collision this method is practical and simple, the body structure of the little change, has been widely used As early as 1993, Honda Accord at the Shenzhen International Automobile Exhibition cut a part of the door to expose the bumper to show the audience, to show its good safety performance The installation of the door bumper is a number of high-strength steel beams horizontally or diagonally placed in the door panel of each door, playing the role of the front and rear bumper, so that the whole car has bumper protection around the front and rear, forming a copper wall and iron wall, so that the car occupant has a maximum safety area Of course, the installation of such door bumpers will undoubtedly increase some costs for car manufacturers, but for car occupants, safety and security will increase a lot.
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