The traditional end set temperature control electric valve way

At present, energy shortage has become a serious problem that restricts China's economic and social development. Building energy conservation, as an important part of the national energy strategy, has drawn more and more attention. At present, China's urban civil buildings consume about 23% of the total electricity generated in China. The impact of building energy consumption on the development of national economy and people's normal working life has become increasingly prominent. China has nearly 500 million square meters of large public buildings using central air conditioning. According to a survey of the energy consumption of nearly 100 large public buildings in Beijing, Shanghai, Guangzhou and Shenzhen, they found that their electricity consumption per unit area is 10 to 20 times that of the average residential building in the city, and more than half of the electricity consumption is for Central air conditioning. The total construction area of ​​less than 5% of China's urban civil construction area of ​​large public buildings, the electricity consumption accounts for about 25% of China's construction electricity consumption. Moreover, with the development of our economy and the acceleration of urbanization, large-scale public buildings are growing rapidly at a rate of 3,000 to 40 million square meters per year. The proportion of large-scale public buildings with high energy consumption in the total urban construction area is also growing , Resulting in the growth rate of construction electricity consumption is higher than the growth rate of the total construction. Therefore, the key technologies to reduce the energy consumption of large-scale public buildings air-conditioning system can not only lead the energy-saving design of HVAC in public buildings in China, promote the research and development of new energy-saving air conditioning products and the formation of the corresponding product industrialization, reduce the level of building energy consumption Actively promote and promote the role; the same time, the research results in the form of demonstration projects to promote, for building energy efficiency and even the country's energy strategy, has a very important significance.

Rear Bumper Injection Mould

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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Taizhou Huangyan Xingtai Plastic Mould Co., Ltd. , https://www.xingtaimould.com