Green manufacturing technology and development tre

Green manufacturing technology and development trend of product development Abstract: green manufacturing is the embodiment of the sustainable development strategy of human society in modern manufacturing industry. This paper analyzes the main key technologies of implementing green manufacturing, and then prospects the development trend of green manufacturing

key words: green manufacturing; Key technologies; Development trend

green manufacturing is a modern manufacturing mode that comprehensively considers environmental impact and resource efficiency. Its goal is to minimize the negative impact on the environment and maximize resource efficiency in the whole product life cycle from design, manufacturing, packaging, transportation, use to scrap disposal. Manufacturing industry is the pillar industry of social development, and its development plays a vital role in the economic development of a country. However, the manufacturing industry has brought serious pollution to the environment in the process of transforming manufacturing resources into products and the use and disposal of products. Therefore, the modern manufacturing industry must also consider the environmental factor E (environment) while fully considering the product characteristics of T (time), q (quality), C (cost) and S (service) of enterprise competitiveness. The implementation of green manufacturing can enable the manufacturing industry to maximize the use of resources and minimize environmental pollution. In this paper, the Beijing Ministry of Agriculture held a national summary and exchange meeting on the use of controllable fully biodegradable plastic film in farmland, which will analyze the key technologies for the implementation of green manufacturing, and then prospects the development trend of green manufacturing

1 key technology to realize green manufacturing

(1) green material selection technology

green materials refer to materials with good environmental compatibility on the premise of meeting general functional requirements. Green materials have the largest resource utilization and the smallest environmental impact in the preparation, use and post-use disposal of various stages of the life cycle. Choosing green materials is one of the prerequisites and key factors to realize green manufacturing. Green material selection technology is a systematic and comprehensive complex problem. First, there is no clear boundary for green materials, which is difficult to deal with in practice. Second, the selection of materials should not only consider their greenness, but also consider the requirements of product function, quality, cost and other aspects, which adds more complexity to the selection of green materials. Green manufacturing requires the following principles to be considered in the selection of materials: ① give priority to renewable materials and try to select recycled materials to improve resource utilization and achieve sustainable development; ② Try to choose materials with low energy consumption and less pollution; ③ Try to choose materials with good environmental compatibility and avoid materials with toxic, harmful and radiation characteristics. The materials used shall be easy to reuse, recycle, remanufacture or degrade

(2) green process planning technology

green process planning technology refers to the process scheme and process route that uses less materials and energy consumption, less waste, and less environmental pollution. The realization ways of green process include: ① changing the input of raw materials, the utilization of useful by-products, the reuse of recycled products and the on-site reuse of raw materials, especially the recycling in the process; ② Change the production process or manufacturing technology, improve the process control, transform the original equipment, and minimize the consumption of raw materials, waste generation, energy consumption, health and safety risks and ecological damage; ③ Strengthen the environmental assessment of the use of natural resources and the discharge of air, soil, water and waste, and determine its impact on human health and natural resources according to the relative scale of environmental load

(3) green packaging technology

green packaging technology is to optimize the product packaging scheme from the perspective of environmental protection, so as to minimize resource consumption and waste generation. Green packaging technology mainly studies the selection of packaging materials, the improvement of packaging structure and the recycling of packaging waste

various packaging materials of products account for a large part of waste. The use and disposal of packaging materials will bring a great burden to the environment, especially some plastics and composite chemical products that are difficult to recycle and reuse can only be incinerated or buried, and some degradation cycles can reach hundreds of years, bringing great harm to the environment. Therefore, the packaging of products should abandon the consumption concept of novelty and differentiation and simplify the packaging, which can not only reduce the waste of resources, but also reduce environmental pollution and waste disposal costs. At the same time, the product packaging should try to choose non-toxic, pollution-free, recyclable or degradable materials. In this assessment, the improvement of the product packaging structure can be achieved by improving the product structure design according to the human body's preference and dislike of smell. Studies have shown that increasing the internal structural strength of products can reduce the demand for packaging materials by 54% and the packaging cost by 62%

(4) green product use technology

the research on the use of green products mainly focuses on extending the service life of products and reducing energy waste and environmental pollution in use

extending the product life cycle can ultimately reduce various disposal work after product scrapping, so as to improve resource utilization and reduce negative impact on the environment. To extend the life cycle of products and increase the maintainability of products is an important method. Therefore, the disassembly of products, especially the disassembly and maintenance of vulnerable parts, must be considered in the design stage

energy saving design is conducive to reducing energy waste and environmental pollution in product use. Research by the German Federal Environment Agency shows that at least 11% of the electricity consumed by German homes and offices is consumed by equipment in standby mode. The U.S. Department of energy estimates that the U.S. pays about $1billion a year for power to turn off televisions and video recorders. Standby power consumption has attracted widespread attention in society. Therefore, in the design stage of products, enough attention should be paid to the energy consumption caused by their use. At present, for the standby power consumption of household appliances, people have studied new switching power supplies and "green chips", which aim at green design and can greatly reduce the power consumption of many power supplies when they are switched to idle standby mode

(5) design for recycling and disassembly

after the end of the product life cycle, if it is not recycled, it will cause a waste of resources and environmental pollution. Product recycling plays an important role in its life cycle. It is through various recycling strategies that the product life cycle forms a closed loop. The end-of-life products eventually enter the next life cycle through recycling. It can be seen that recycling is a prerequisite for the realization of eco industry, which plays an important role in the green manufacturing of products. The evaluation of the design of product recycling treatment scheme mainly focuses on three aspects: maximizing benefits, reusing as many parts as possible, and discarding as few parts as possible

① recycling scheme design. Environment oriented product recycling is a systematic project. This problem should be fully considered from the beginning of product design, and systematic classification should be carried out. After the end of product life, there can be many different treatment schemes, such as reuse, reuse, waste, etc. the treatment cost and recovery value of various schemes are different. It is necessary to analyze and evaluate various schemes to determine the best recovery treatment scheme, so as to obtain the highest recovery value at the least cost

② design for disassembly. Disassembly is the process of systematically removing its constituent parts from the assembly, and ensuring that no damage is caused to the target parts. Dismantlement is divided into destructive dismantlement and non-destructive dismantlement. At present, the research on disassembly oriented design mainly focuses on non-destructive disassembly. Disassembly is an important means to achieve an effective recycling strategy. Only disassembly can realize complete material recycling and possible reuse of parts. Only in the initial stage of product design, the disassembly after scrapping can realize the final efficient recycling of products

2 development trend of green manufacturing

(1) social support system will gradually form

green manufacturing requires the joint efforts and participation of the whole society. The social support system of green manufacturing is first of all legislation and implementation, plus annealing to deal with political regulations. Take advantage of relevant laws and administrative regulations to form strong support for green manufacturing, and appropriately punish the opposite behavior. Secondly, the government can formulate economic policies and use the market mechanism to guide the implementation of green manufacturing. Such as formulating effective resource price policies, using economic means to strictly control the consumption of non renewable resources, etc

(2) the characteristics and trends of globalization are increasingly obvious

the impact of manufacturing on the environment is often beyond space, and protecting the earth is the common goal of mankind. With the integration of the world economy, the market competition of green products will be launched on a global scale. In recent years, many countries have to carry out green certification for imported products, especially some countries have formulated harsh product environmental indicators to restrict foreign products from entering the domestic market, that is, set up "green trade barriers" on the grounds of protecting their own environment. Green manufacturing will provide technical means for enterprises to improve the green level of products, and provide strong support for enterprises to eliminate international trade barriers and enter the international market

(3) integrated system technology will have great development

to truly and effectively implement green manufacturing, we must consider and study the relevant problems in green manufacturing from the perspective of system and integration. At present, the integration of product and process design and material selection system, the integration of user needs and product use, the information integration in green manufacturing system, the process integration of green manufacturing and other integration technologies have become an important research content

(4) green concurrent engineering will become an effective mode of green product development

Green concurrent engineering is a new mode of modern green product design and development. It designs products and the whole process of their life cycle in an integrated and parallel way, and strives to make product developers consider all factors in the whole life cycle of products, from concept formation to product scrap disposal, such as quality, cost, user requirements, environmental impact, resource consumption, etc

(5) application of artificial intelligence support technology

the optimization of the decision target system of green manufacturing is a very complex multi-objective optimization problem that is difficult to deal with by general mathematical methods, and it needs to be supported and dealt with by artificial intelligence methods. In addition, the green product evaluation index system and evaluation expert system need artificial intelligence and intelligent manufacturing technology. Therefore, artificial intelligence technology based on knowledge system, fuzzy system and neural network will play an important role in green manufacturing

(6) green manufacturing will lead to the formation of a number of emerging industries

the implementation of green manufacturing will inevitably lead to the prosperity of waste recycling and treatment equipment manufacturing, waste recycling and treatment service industry and green product manufacturing industry; In addition, the software industry for green manufacturing will gradually take shape. Enterprises need a large number of implementation tools and software products to implement green manufacturing, such as computer green product design system, green process planning system, green creation decision system, product production cycle evaluation system, etc. the large demand for these green manufacturing tools will promote the formation and development of the emerging green software industry

3 conclusion

green manufacturing emphasizes not only the importance of "green" at all stages of the product's life cycle, but also