Authors: Yu Ling Yao, Bao Jun Wang, Hai Hong Xin
Abstract: Product is divided into four types which are hardware, software, processing material and service. Processing material is one typical kind of product among them. The hardware produced in several steps could be divided into single independent unit which is called “working process”. However, the flow is continual and there is no independent “working procedure” during the production of processing material. So how to evaluate and improve process achievement in the manufacture process of processing material becomes the study goal of this paper. This paper aims to explore the method for the process capacity evaluating of processing material as well as improving by researching a case on super-higher molecular weight polyethylene porous plastic. Statistical technology and knowledge are used together to improve the comprehensive ability of process.
685
Authors: Qiu Zhong Zhou, Hao Yu Zha
Abstract: To deeply promote the digital enterprise construction, it’s necessary to provide an assembly process data organization model which meet all the requirements of product design and production management. Assembly process data requirement was analyzed on the basis of reference the foreign and internal research achievement. Then an idea of multi-level assembly process flow was proposed by analyzing the procedure of product design and production. At the same time, Multi-level BOP based assembly process data model which fit all the requirement of assembly procedure was constructed through the analyzing of material flow and assembly resource relationship among each unit of assembly flow. In addition, data endorsement and application of this model in the work of product design, production plan and production prepare was expounded. Accordingly, the bridge and bond function resulted by this model between product design and production was certified.
292
Authors: Yong Chao Gao, Bai Tong Zhao, Wen Xiu Gao
Abstract: In this paper, we should analyze the characteristic of the solar grade poly-silicon up-graded by physical process and make comparison with silicon made by Siemens process in wafer and solar cell, also we make a analysis for the degradation of the solar cell module. From the result we find that the silicon block have no obvious drawback such as crack detected by GT infrared and the average minority carrier lifetime is 3.86μs, the minority lifetime and resistivity of the wafer is better than the standard, solar cell prepared using the solar grade silicon wafer by physical process has an average conversion efficiency of 15.78% which is 0.12% higher than the Siemens wafer mainly due to high open circuit voltage. Efficiency degradation of the solar cell made by physical process is less than 3% after half an year which met the international standard. So we come to the conclusion that solar grade silicon prepared by physical process is a promising alternative material for PV industry and become main solar grade poly-silicon in the future.
119
Authors: Cheng Qiu, Wei Yi Sun, Chao Long Wang, Shi Jun Su
Abstract: Circular economy promotes the establishment of recycling-oriented society and recycling-based businesses. Circular economy is characterized by eco-efficiency improvement and materials recycle, furthermore, it also has provided a practical and feasible way for the sustainable development of human society. Materials flow analysis (MFA) has provided a new and simple way to study the development of circular economy. MFA is based on materials inputs and outputs, and then creates materials inputs and outputs account to manage materials flow. The process using pyrolusite for FGD produces manganese, high-purified manganese carbonates and slag used for cement production as byproducts. Electrolytic manganese production process, high-sulfur coal combustion process and cement production process are studied in the research. Materials flows of these processes are studied. The new production patterns are compared with the traditional ones basing on MFA. The results show that these processes are more environment-friendly and resource-saving in the comparison. To evaluate the circular economy efficiency of the complementary system, the evaluation index system of the circular economy construction is created.
3162
Authors: Wei Zeng Gao, Yue Sheng Gu, Yan Li Zhu
Abstract: In refrigerator industry, takt time becomes shorter with the growth of refrigerator production, product configurations become more diverse with the increase of customizing requirements, traditional data acquisition methods and manufacturing resource identification methods cannot meet the need of manufacturing execution system (MES) in job shop scheduling, work in process (WIP) tracking, rapid response of process control and so on. As an automatic identification technology, Radio Frequency Identification (RFID) can be applied to bridge the gap between physical flow of product/part and information flow in enterprise application system due to its characteristics such as automatic identification, long-distance reading, and non-line-of sight. Based on this characteristic, this paper design a real-time MES (RT-MES) for refrigerator production and successfully implements this system based on the actual situation of JAC.
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