Applied Mechanics and Materials Vols. 608-609

Abstract: Through the Gleeble-1500D thermal simulator, the paper were carried out hot compression and tensile experiments on the 1Cr13 martensitic stainless steel, and get the different deformation curve under the conditions of stress strain. At the same time, we get the constitutive equations and Z parameters, which provide necessary material model for numerical simulation of the stainless steel forging process. The compression and tensile tests were simulated with DEFORM-3D simulation software, respectively; get the material value of the fracture damage ductile fracture critical damage and material void initiation damage, it will reasonable provide reference in production process and prevention crack in the process of forging.

Abstract: This article described the technical progress of the wall insulation organic materials and analyzed other relevant factors in recent years about the insulation materials policies changes and market changes. Through the above description and analysis, we presented new ideas of the future direction of development of organic insulation materials. Background In recent years, big fire moments remind the importance of fire safety all the time. The CCTV Building Fire in 2009, Shanghai Jiaozhou Road Fire in 2010 and Shijingshan Fire in 2013, let the public turn pale at the mention of a word about fire. These fires are all related to the wall insulation organic materials. In fact, it should be said that unqualified exterior wall thermal insulation materials and the lack of supervision measures led to a variety of fire accidents which can be avoided. Therefore, good flame retardant wall insulation organic materials and thermal insulation system are very important to reduce and prevent fire, and they are also fundamentally important ways to block and reduce the fire risk. At present, there are three kinds of wall insulation materials. The first type are the inorganic heat preservation materials, such as rock wool, glass wool, mineral slurry, etc., These materials belong to no combustible materials (class A fire), and there is no fire safety problems. The second type of wall insulation materials are composite materials, such as phenolic foam insulation materials, reaching flame retardant materials B1 level (fire). The third kind are the organic polymer insulation materials, such as molding benzene board (EPS), foaming benzene board (XPS), polyurethane (PU) . They belong to the combustible materials (B2 fire). This kind of material have the danger of fire. In our country the most widely used of wall insulation materials are the third class. Especially the EPS and XPS have good heat preservation performance, low price. And They are light and durable. But, this kind of materials have obvious disadvantages that they are so easy to burn, and release diffuse toxic or harmful gas in the combustion. Therefore, we should focus on hot spots about organic fire situation of wall insulation organic materials. Fire prevention progress of common wall insulation organic materials Polyurethane (PU) :

Abstract: Inductively coupled plasma optical emission spectrometric approach (ICP-OES) is used to determine the titanium content as principal component in pyrotechnic compositions used for fireworks and firecrackers. Element of titanium is commonly found in titanium powder in pyrotechnic compositions in fireworks and firecrackers. Statistical analysis shows that titanium content in pyrotechnics is between 3% to 25%. Concept of this method: considering the weight of the sample is 400mg,constant volume is 1L and the concentration of titanium is between 1 mg/L to 100 mg/L in sample solution, the determination scope of the method for the titanium content would be between 0.25% to 25%.Further experiments proved that the fitting correlation coefficient of titanium calibration curve is 0.9996 or higher, recovery is 100.06%‒105.30%.The allowable differential value is 0.4% between two single tests under repeatable conditions. This method can completely satisfy the requirements of the fireworks and firecrackers industry with high accuracy and good precision.

Abstract: This paper introduces the definition and types of plasticizers, mainly may contain species of plasticizer in food, detection methods of plasticizer in food, research on phthalic acid esters migrate in food packaging material as well as the causes and Countermeasures of food plasticizer that exceed the standard system to introduced, providing a reference for the further research and related researchers.

Abstract: The fiber is a reinforced material which has relatively light texture, high strength, is durable and wear-resistant, and widely used in the mixture of asphalt pavement. Adding different types of fibers in the construction, has a good effect in preventing cracks in the road, the performance of the road will also enhance. After the appropriate amount of fiber added to the asphalt mixture, fiber molecules will continuously and uniformly spread out, this time it will increase the anti-destructive of mixture, and will play an important role in protecting the road, preventing the road fracture. Related practices abroad show that adding fiber in asphalt mixture, every performance of the mixture will increase in different degrees. The diameter and density of different types of fibers will be different, of course, the reinforcing effect are not the same. This article describes application of a synthetic fibre in asphalt mixture, which is polyacrylonitrile fiber.

Abstract: Indium tin oxide (ITO) as a transparent conductive film (TCO) is a kind of oxide film of the most widely used which is the N type semiconductor material In2O3 doped with Sn, which has many excellent properties based on: conductivity, optical property, processing property and chemical stability etc.In recent years, which has attracted widespread attention, and it is widely used in all aspects of life such as transportation, aerospace, defense, building, solar energy and high-tech fields. Therefore, it is an inevitable trend of social development in the future understanding and improving basic properties and preparation methods of the ITO thin film. This paper summarized the present research situation of ITO transparent conductive film current from the two aspects of characteristics and manufacturing process of ITO films; then reviewed the application status of ITO transparent conductive films in recent years; finally, the future development trend of Ito transparent conductive made a brand-new outlook by analyzing the current situation of the above.

Abstract: with the economic development, the three-kettle condensation process is more and more widely applied. This paper introduces three-kettle condensation and its features and advantages. Comparing the changes of steam consumption and solvent residue in rubber before and after the modification of the cis-1,4-polybutadiene rubber condensation system, the obtained result shows that compared with the two-kettle condensation, the three-kettle condensation system can steam by 25%, and also can reduce 50% of the solvent residual liquid in rubber. The results after the process optimization on three-kettle condensation system show that the bottom temperature of No.1 kettle is 85 °C, and the top pressure is 48 kPa; the bottom temperature of No. 2 kettle is 102 °C, and the top pressure is 90 kPa; and the top pressure of No. 3 kettle is 10 kPa. In addition, here points out the differences in optimization, and gives suggestions to the optimization.

Abstract: Rare earth elements are able to improve the tenacity of materials and the nucleation rate of alloys in crystallization. Meanwhile, it can make the grain boundary purified and improve the strong tenacity of the interface. Therefore, the reduction of cladding layer’s tearing tendency and the increase of cladding layer’s strong tenacity were realized by adding rare earth elements in this paper. The result of the experiment showed that rare earth elements could be added into the cladding layer under the technological conditions of strictly controlling arc power density and shortening the retention of cladding materials in electric arc, and also could make grains refined and play a role in reducing the cracking tendency

Abstract: The low carbon economy development mode refers to the use of a low carbon economy related theoretical knowledge, organization economy and social activity, the traditional economic development mode is transformed into a new low carbon economy development mode. With the economic development of Hebei Province, a low carbon economy development as the guidance, and Hebei Province low carbon economy development planning as the purpose, to establish Hebei Province low carbon economy development mode structure. At the same time, the economic development of Hebei Province is carried out investigation and analysis, the original data of Hebei Province economic development uses standard data method and normal distribution, to carry out standard processing. According to the analytic hierarchy process, the combination of Hebei Province low carbon economy evaluation and index hierarchy analysis method, to carry out system evaluation for the overall carbon economy development.

Abstract: Industrial cluster has developed into an international economic status, this has received extensive concern. In the current world the economy is gradually transformed from industrialization to information technology, and gradually moves towards low-carbon road. Under the background of the current development of low carbon industry, which will directly affect China’s industrial road, at the same time the development of low carbon industrial cluster will also generate a very important influence on China's economy. The article is based on the theory of low carbon industrial cluster, combining with KAYA model, make a thorough inquiry of the approach and pattern of low carbon industry cluster development, put forward the analysis of the necessity and the feasibility of low carbon industry cluster development, and accordingly put forward path model of achieving the low carbon industrial cluster, in order to provide the powerful guidance for development of low carbon industry, realize the rapid development of Chinese economy, and low carbon development of Chinese industry.