Advanced Materials Research Vols. 328-330

Abstract: Based on the study of characteristics, classification, and propagation principle of equipment manufacturing generic technology, a technological diffusion model of equipment manufacturing generic technology is developed in this paper. Utilizing the established model, the diffusion approach of digital design technology which is one kind of the equipment manufacturing generic technology is analyzed, which is an empirical study of technological diffusion method of equipment manufacturing common technology. The study is meaningful to accelerate the technological diffusion speed of equipment manufacturing and promote the development of equipment manufacturing industry.

Abstract: Just in time (JIT) distribution is an necessary activity for the JIT production system ,which delivers the right parts with the right quality and quantities to the right place at the right time. In this paper we analyze and build a logistics distribution mode of a just-in-time based production system and develop a JIT production logistics information system using RFID technology, XML technology and .NET platform. The information system has four function modules: user management, basic data management, distribution management and interface management. The practice of JIT pull production shows that the rate of material distribution is effectively increased and the inventory is effectively decreased . The developed system and ERP system can control production process and material movement well .

Abstract: With construction of the growing amounts of energy saving buildings, there are defects cracks in external wall insulation because of lack of construction and management experience. The purpose of this study is to find out main causes of cracks of external wall insulation covered by ceramic tile, to conduct construction industry to control engineering quality by paying attention on them. On basis of document study, field investigation to construction workers, supervisors, project managers, both material and construction causes of cracks are studied by investigation and designed questionnaires, including 32 detailed reasons and their harmful levels. Meanwhile, the base data from them is analyzed, and Pareto charts of causes of crack are drawn accordingly. The result shows that grid cloth and plaster mortar are the main material reasons, and that plaster mortar construction, grid cloth laid, detail treatment, configuration of plaster mortar are the main construction reasons.

Abstract: Ergonomically design is very important for younger body growth healthy. According to the anthropometry which include the differences between adults and teenagers, and the motion of normal behavior and daily domain that influence of sitting situation, which designed for teenagers can get special design that fit for the younger in age stage developmental. Using this virtual simulation technique can detect the design of more product modeling whether accord with human body posture virtual scene lumber curvature, thus obtains the more effectiveness about posture of the human body according to Ergonomically design and back support condition. This method will greatly improve the comfortableness with prolonged sitting, and reduce low-back pain caused by poor chair design. Function of the back support system can affect muscles tension and guard against Adolescent idiopathic scoliosis.

Abstract: The high-strength steel blanks with higher yield strength had introduced many challenging formability problems for the stamping process. However, in some situations the multi-stage process is a very effective solution for the stamping of high-strength blanks with a relatively lower formability than that of commonly steel blanks. In the multi-stage process, the change of strain path will be beneficial to the reduction of strain peaks and the utilization of the potential plasticity.

Abstract: The lube oil separator is widely used in lube oil system of merchant vessel. The lube oil separator functions to purify the lube oil to ensure its good working performance. The working condition of the oil separator will greatly influence the normal running of many plants. The lube oil separator used in our laboratory is Mitsubishi SJ700. In the processing of purifying, oil leakage from the water outlet is found. In order to find failure point, the basic structure and the working principle of the separator is introduced. The separator is dismantled according to the procedure. After cleaning some parts found dirty and replacing some sealing elements, the separator is reassembled. When starting the separating process again, the failure remains. Through further analyzing the structure and working principle of the separator, the trouble spot is found out. After removing the failure, the separator finally is repaired. To prevent similar accident occurring again, some suggestions are presented.

Abstract: The research in mainly conducted on the realization mechanism of CAS (Computer Aided System) facing the Industrial Design, though analysis on the discipline characteristics of Industrial Design as well as the design process based on the PCM method, the advantages as well as feasibility of case-based reasoning system as a kind of system building pattern is discussed. Based on the combination of the discipline characteristics of Industrial Design and the theory of case-based reasoning, the research on the comprehensive realization mechanism is conducted on aspects in the form of systematic function module planning, major problems and solutions involved in all links as well as key technology discussions, providing reference for the establishment of the case-based reasoning system together with the construction of similar auxiliary systems facing the Industrial Design.

Abstract: Box-taking mechanism is an important part of automatic cartoner, it also is a “bottleneck” in automatic cartoner. After analyzing the process of box-taking and the key movements for automatic cartoner, designed a new kind of box-taking mechanism with double cam five-bar combined mechanism. Combining five-bar mechanism and cam advantages, the mechanism can be realized the trajectory with the demand of velocity and gesture. The detailed and interchangeable gas circuit also be designed, which reduced the complexity of replacing the seal rings. Practical result shows that the mechanism could execute the box-taking gesture quickly and smoothly.

Abstract: Surface texturing is an important process to enhance light absorption and to improve efficiency of a solar cell. Reactive ion etching (RIE) process is a very effective process and low-cost process, which is applicable during the dry etching processes for thin crystalline silicon solar cells with large areas. In this study, we studied a dry and free mask texturing process on crystalline silicon wafer using SF₆/O₂ plasmas and metal mesh in a RIE system, with special attention to the effect of the metal mesh and RIE conditions on the texture of the silicon surface. In particular, we have found an optimized RIE conditions by increasing the distance between the metal mesh and silicon wafer. We have also found that by increasing the RIE process time, with an optimized SF₆/O₂ ratio, pressure and RF power, it is possible to switch from a random texture, to a nm-size pyramid texture and finally to an um-size pyramid texture. This RIE system textured a crystalline wafer surface that formed about 1~2 μm pyramidal black silicon with 7~10% of reflectivity.

Abstract: This paper research on how hazardous chemicals transportation provider optimal transportation solution supposed transportation risk (i.e. releasing of chlorine) may happen in the process of transportation. If the government attaches much importance to environment protection and pushes severe punishment on environment pollution, the hazardous chemicals transportation provider should consider two goals together: minimizing the individual transportation cost and minimizing the social transportation cost. Then this paper develops a goal programming model which contains two goals for the problem. Which goal is important will affect the objective function of this model. Through discussion on importance compare of two goals, this paper believes that government policy is very important to inspirit hazardous chemicals transportation providers complying with laws and protecting environment.