Research and Development of Gravitation Electro-Galvanizing Testing Apparatus

2013 ◽  
Vol 734-737 ◽  
pp. 2664-2671
Author(s):  
Xue Rong Zhang ◽  
Kai Yong Yan ◽  
Yan Cai Chen ◽  
Tang Zheng Zhang ◽  
Dao Bing Huan

Putting forward a kind of flexible electroplating method based on the fission type vertical plating bath, A new type of gravitation electro-galvanizing testing apparatus was developed. This paper expatiate the design thought of the testing apparatus, and introduces the design principle and constituent as well as the technological process. Using the device, the author completed various plating of gravity test under different parameters, and verified the integrity and reliability of the device. This testing apparatus consists mainly of zinc dissolving, fluid mixing, electroplating and cleaning. Mechanical configuration of this apparatus is gather together, Control system is credibility, Technologic target is advanced, Work pieces install and remove is convenience. The parameters of solution speed, solution temperature, solution concentration, and the distance of negative and positive node are controllable and adjustable. This apparatus support accurate and reliable method for enterprise in developing new product, diagnosing product defect and optimizing process.

Author(s):  
Zhi-ming Xu ◽  
Ling Chen ◽  
Ying-lun Gao ◽  
Zhong-bin Zhang

The main purpose of this investigation was to study the anti-fouling and heat transfer performance of coated surfaces (ECTFE, FEP, PTFE and PFA). In the present investigation, the heat transfer performance of the coated surfaces was compared to base metal surfaces, and crystallization fouling experiments of coated surfaces were carried out under various operating parameters such as solution temperature, solution concentration and hydrodynamics of the system. The characteristic parameters of the coated surface, such as surface roughness, surface contour, contact angle and surface energy were measured and calculated, which were used to analyze the anti-fouling performances of the coated surface. The results show that compared with the base metal surface, Nusselt number of coated surfaces decrease. But coated surfaces have advantage on anti-fouling ability.


2021 ◽  
Vol 4 (11(112)) ◽  
pp. 6-16
Author(s):  
Ayana Serikbaeva ◽  
Bagimkul Tnymbaeva ◽  
Maryna Mardar ◽  
Nataliіa Tkachenko ◽  
Saniya Ibraimova ◽  
...  

In order to determine the influence of temperature and time of germination of the Bogatyr variety buckwheat on a change in the content of vitamins E, C, and B group, the germination parameters were optimized when developing a new type of seasoning. To optimize the germination parameters, the response surface methodology was used. The maximum total content of B, E, and C group vitamins in the sprouted buckwheat (4.591 mg/100 g) was observed at a temperature of 21.5 °C and the duration of germination of 3 days. The Bogatyr variety buckwheat was sprouted for 4 days. Changes in the nutritional and biological value of the sprouted grains were registered after 24 hours. Based on the comparative chemical analysis, it was established that the content of protein, fiber, vitamins, amino acids increases during the germination of buckwheat in comparison with the control sample. The protein content on day 4 increases by 1.38 times compared to control. At the same time, the mass fraction of carbohydrates on day 4 is reduced by 1.57 times; the mass fraction of fat ‒ by 2 times. It was established that the prototype seasoning that contains 30 % of sprouted buckwheat is characterized by a higher content of protein, vitamins, micro-and macronutrients compared to the control sample (without the addition of sprouted buckwheat). Adding the sprouted buckwheat grain to the seasoning has made it possible to increase by 25 % the antioxidant activity of the finished product compared to the control sample, which is 259.09 and 383.72 mg/100 g, respectively. In terms of safety indicators, the new product fully complies with the requirements for sanitary and hygienic safety. The results reported here give reasons to recommend the production of a new type of seasonings of enhanced nutritional value based on the sprouted Bogatyr variety buckwheat, which could expand and improve the quality of nutrition


2021 ◽  
Vol 1035 ◽  
pp. 89-95
Author(s):  
Chao Tan ◽  
Zi Yong Chen ◽  
Zhi Lei Xiang ◽  
Xiao Zhao Ma ◽  
Zi An Yang

A new type of Ti-Al-Sn-Zr-Mo-Si series high temperature titanium alloy was prepared by a water-cooled copper crucible vacuum induction melting method, and its phase transition point was determined by differential thermal analysis to be Tβ = 1017 °C. The influences of solution temperature on the microstructures and mechanical properties of the as-forged high temperature titanium alloy were studied. XRD results illustrated that the phase composition of the alloy after different heat treatments was mainly α phase and β phase. The microstructures showed that with the increase of the solution temperature, the content of the primary α phase gradually reduced, the β transformation structure increased by degrees, then, the number and size of secondary α phase increased obviously. The tensile results at room temperature (RT) illustrated that as the solution temperature increased, the strength of the alloy gradually increased, and the plasticity decreased slightly. The results of tensile test at 650 °C illustrated that the strength of the alloy enhanced with the increase of solution temperature, the plasticity decreased first and then increased, when the solution temperature increased to 1000 °C, the alloy had the best comprehensive mechanical properties, the tensile strength reached 714.01 MPa and the elongation was 8.48 %. Based on the room temperature and high temperature properties of the alloy, the best heat treatment process is finally determined as: 1000 °C/1 h/AC+650 °C/6 h/AC.


Author(s):  
В.В. ИЛЛАРИОНОВА ◽  
Е.А. ВЕРБИЦКАЯ ◽  
Е.Е. ЗУБАКОВА ◽  
Е.Н. ГУБА ◽  
М.В. ГУСЕВА ◽  
...  

Проведен анализ необходимости выпуска нового вида молочной продукции – творога, обогащенного продуктами функциональной направленности, полученными из плодов облепихи. Для установления привлекательности нового продукта использовали интегральную (качественную) оценку и ее количественную интерпретацию. Оценку проводили методом опроса потребителей в количестве 300 чел. с использованием опросного листа. Проведенные исследования позволили оценить привлекательность нового продукта в 61 балл по 100-балльной шкале. Установлено, что потребительский рынок адаптирован к появлению нового вида молочного продукта (90% респондентов): продукт соответствует возможностям молочных предприятий, не имеет значительного количества конкурентов на потребительском рынке. Оценка успешности усилий по созданию нового вида молочного продукта функционального назначения и его продвижения показала, что проект находится в «Зоне выигрыша» (Win Zone). Проведенный SWOT анализ позволил установить, что планируемый продукт отличается высокими конкурентными преимуществами, позволяющими сформировать направленность товарной стратегии по его продвижению и внедрению на рынок по традиционным каналам. The analysis of the need to produce a new type of dairy product – cottage cheese, enriched with functional products derived from sea buckthorn. To establish the attractiveness of the new product, an integral (qualitative) assessment and its quantitative interpretation were used. The assessment was performed by interviewing 300 people using a questionnaire. Studies have allowed us to estimate the attractiveness of the new product at 61 points on a 100-point scale. It is established that the consumer market is adapted to the emergence of a new type of dairy product (90% of respondents): the product corresponds to the capabilities of dairy enterprises, its production does not require significant re-equipment, has no significant number of competitors in the consumer dairy market. Evaluation of the success of efforts to create a new type of dairy functional product and its promotion showed that the project is in the Win Zone. The SWOT analysis allowed us to establish that the planned product is characterized by high competitive advantages, which will form the direction of the strategy to promote a new type of dairy product and market introduction through traditional channels.


2013 ◽  
Vol 448-453 ◽  
pp. 1093-1098
Author(s):  
Jin Zhong Jiang ◽  
Yan Fen Huang ◽  
Chao Ying Wang ◽  
Cui Juan Ren ◽  
Chang Jiang Qian

Fetus tea was named firstly in the paper; it was a new type of tea made with tea tree seedlings those was growing before their 2 big euphyllas were adult. In the period in which tea seed germinated and 2 big euphyllas grew, tea seedling varied in morphology and ratio between leaves and stem. According to the variation of morphology and ratio between leaves and stem, five production scenarios were formulated, which were fetus crow, fetus pearl, fetus needle, fetus butterfly, white seedling, respectively. The fetus teas produced with the five production scenarios were tasted and analyzed in morphology and biochemical components, the results indicated that fetus needle and white seedling scenario had obviously developmental potential. The theanine content of fetus needle was 8.05% and 1.44 time higher than mean theanine content of tea produced in China. The development of fetus tea opened up a new way by which tea tree seed was transformed to a new product with high additional value.


2014 ◽  
Vol 809-810 ◽  
pp. 578-582
Author(s):  
Ju Mei Zhang ◽  
Hui Cai ◽  
Wan Chang Sun ◽  
Peng Hui Cai

The growth of microarc oxidation (MAO) coatings on aluminum substrates was controlled via changing solution temperature from 10 to 60 °C. The results show that an elevation of the temperature lowers the applied voltage and the coating thickness. The coating formed in low-temperature solution demonstrates large-sized pores and contains lots of elements only originating from solute such as P, W, and V. On the contrary, numerous small-sized pores disperse homogeneously on the coating synthesized in high-temperature solution. It is assumed that the variation of solution temperature affects the dissolving capacity of the alkaline solution and the adsorptive capacity of solute anions, thus dominating the growth behaviors of MAO coating.


Author(s):  
John B. Lee ◽  
Adam Huang

Microelectromechanical systems (MEMS) and nanoelectromechanical systems (NEMS) have produced ideas and techniques for creating new devices at the micro/nano scale. Nano/pico satellites have limited orientation capability partly due to the current state of microthruster devices. Development of a self-contained micro propulsion system would enable dynamic orbital maneuvering of pico- and nano-class satellites. The act of vaporizing a fluid via nanochannels to vacuum has not been studied and the limitations are unknown, but it could provide a novel method of propulsion for small satellites. However, solution properties are transient during vaporization which affects fluid flow. Thus, experiments have been designed to measure solution properties including density, evaporation rate, and vaporization pressure. A setup has been designed monitor the solution mass and volume inside a vacuum chamber. Evaporation of the solution is affected by the vacuum pressure, capillary tubing diameter, solution temperature, and solution concentration. When maintained at the solution vapor pressure, the vaporization rate has ranged from 0.003 to 0.025 grams per minute across the varying concentrations. Preliminary results have indicated some interesting trends regarding solution composition and vaporization rate. The results obtained from preliminary experiments will be used in conjunction with future experiments to determine the viability of nanochannels to be used in the small satellite propulsion system.


2013 ◽  
Vol 316-317 ◽  
pp. 214-218 ◽  
Author(s):  
Yi Zhao ◽  
Fang Ming Xue ◽  
Yuan Shao

A novel wet process has been developed to simultaneously remove NO, SO2 and Hg0 from flue gas. According to the conditions of the bubbling reactor, diperiodatocuprate (Ⅲ) coordination ion solution was prepared with CuSO4•5H2O, KIO4, K2S2O8, and KOH, and the effects of the various influencing factors, such as diperiodatocuprate (Ⅲ) coordination ion solution concentration, reaction temperature, solution pH on removal efficiencies were investigated. The removal efficiencies of 98% for SO2, 90% for Hg0 and 56.8% for NO were obtained, respectively, under the optimal experimental conditions, in which diperiodatocuprate (Ⅲ) coordination ion solution concentration was 6 mmol /L, the reaction temperature was 323 K, and the solution pH was 9.0. That [Cu(OH)2(H3IO6)]- was the main existing form of the absorbent at the optimal experimental conditions was confirmed by calculating the concentration ratios of IO4- and its dissociation products / [IO4-]ex under different pH, and thereby simultaneous removal mechanism for SO2, NO and Hg0 was proposed.


1991 ◽  
Vol 113 (2) ◽  
pp. 221-227 ◽  
Author(s):  
K. Amrane ◽  
M. V. Rane ◽  
R. Radermacher

The performance curves for a single-stage vapor compression heat pump with solution circuit (VCHSC) and for its modified version, the cycle using a subcooler and a preheater, are obtained and are compared for the same total UA value including all heat exchangers. The two cycles are simulated at low and high temperature lifts. The weak solution concentration and flow rate are varied. The parameters studied are the cooling COP, the solution heat exchanger (SHX) effectiveness, the pressure ratio, the solution temperature glides in the absorber and the desorber, the desorber load, and the distribution of the UA value. Changing the weak solution concentration from 20 to 90 wt% ammonia increased the desorber load ten times. The cooling COP improved by as much as 20 percent by incorporating the preheater and the subcooler, for both the low and the high temperature lifts. Compared to the conventional ammonia vapor compression cycle, the modified VCHSC showed a maximum improvement in cooling COP of 88 and 35 percent for the low and high temperature lifts, respectively. The results indicate that VCHSC is a very versatile heat pump and/or refrigeration system suitable for a wide range of applications and changing operating conditions.


2012 ◽  
Vol 468-471 ◽  
pp. 867-870 ◽  
Author(s):  
Yan Hong Yang ◽  
Xiang Qiang Zhong

Hydraulic transmission bicycle is a new type of vehicle. It is crucial for founding an effective method of rapid development for new product. The concept drafting of hydraulic transmission bicycle was drawn, the multiple layer assembly model was built based on parametric feature modeling technique, the skeleton model and total design of hydraulic transmission bicycle was accomplished by top-down method and drawings of relevant parts based on three-dimensional model were created. The result shows that top-down method provides a new idea to improve the rapid design of product’s updates.


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