ugg italia Corrosion of metals in salt water ice a

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Ice salt corrosion and corrosion of metals in

Analysis of material obtained [Fe-c1] complex lq 50 ~ 200. End of CaCI: salt solution we take n = 120,[link widoczny dla zalogowanych], then the 3nCaCl26-Na2Cr20 its molecular weight: 3 × 120 × 111262 if 1Y · l8 · the y one: n0066 per kg of calcium chloride should be added 0.0066kg the Na2Cr20. For the NaCI salt solution,[link widoczny dla zalogowanych], because with the CaCI: ratio of chlorine reduced by half,[link widoczny dla zalogowanych], so desirable n = 60,[link widoczny dla zalogowanych], then 6nNaCl <- a) Na ~ Cr2O7 and its molecular weight: 6 × 60 × 58.5262 if】 z is an o-per kg of NaCI should add 0. Ol2kg the Na2Cr ~ O,. Access is usually produced using the 23 degree crossing the US-lmCaC | solution, density 1.19, the corresponding salt solution is 20. g%, pour point hiding l _-j9.2 \【63 kg) Similarly, 21 Baume degrees lmNaCl solution, density 1.17, the dissolved salt content of the corresponding plant 22.4, a freezing point of 21.2 ℃. Brine temperature of a 15 \. Nao a garlic: 15 (kg) Refrigeration Engineers with the United States recommended the formula 0: A pair of 1000 cubic meters each (28.3m) CaCl solution, adding 100 pounds L45.36kg) of Na2Cr2O · 2HO, which must be added to the NaCI solution 200 pounds (90.72kg) of Na2CrzO · 2H2O. The CaCIz per m plus salt solution I. 6kg, per m of NaC [solution by adding salt 3.2kg of Na2Cr2O7 basic phase with the data we have collected the following table is cold Ningbo transit Na. Cr: O, put the amount of records for reference. Table 3 Ningbo transit cold storage over the years with salt and preservatives scale CaCI: (net 70) (t) Na2Cr2O7 (ks) NaOH (kg) 19792105001301g8l4625068I98260192.154.051983508021.6l984518ll9.66198565.6lO026198738.0l5019885283.282.4619907025.54 IV Conclusion obtained from the survey perceptual phenomenon, comprehensive business experience in Taiwan more than ice and corrosion mechanism analysis, in order to better prevent 19.1. 'LhL or delay the permanent ice in the pool of salt corrosion of metals, should take into account the following aspects of measures. 1. CaCI suitably prepared saline. 2. When salt concentration using CaCl 1.20kg / L or so, compared with NaCl, 1.17kg / L or so. 3. PH value of the brine should be maintained at between 6.5 and 7.5. 4. Brine flow rate preferable 0.5 ~ 0.7rn / s. 5. Production of galvanized steel ice bucket is appropriate. 6. Metal exterior paint with red lead primer and the sea by boat. 7. Ice Pond to minimize contact with air, so the ice pool must be added to wood cover. 8. The use of corrosion inhibitor, the first salt corrosion inhibitor should be added the number of multiple, a purified form a good first film. References 1. Metal corrosion and oxidation ... ... [United Kingdom] HR · Aiwan Si with, Baoding, China translation, Machine Press Du 2. Corrosive and Their Applications ... ... [date] Mamiya Fujio 3. Corrosion Science ... ... Jiangjin Xun et al, National Defence Industry Press 4. Corrosion principle ... a [British] J · C Basescu in the. Nicholls in the translation, China Water Power Press 5. Metal Corrosion Theory and Application ... ... Nanjing Institute of Chemical Technology, Chemical Industry Press 6. Water Treatment Handbook ... ... [law], Barry Raymond Corporation Code, Wang Jun industry, such as translation, China Building Industry Press 7. Corrosion and Corrosion Protection of calcium chloride brine toward the bell ... ... Liu, Corrosion Science and Protection Technology (91) l in three volumes of 8. Small hole corrosion of metallic materials 1. . . ... Of fire, the Lions side, Corrosion and Corrosion Protection (9O) vols 2 Note: The eastern Zhejiang brewery Wu Wei Chu, Beilun refrigeration of plant Xu Quanta, air-conditioning equipment plant Wu Yifan Yuyao, Yuyao Chemical Fiber Factory Li Meifen, Ning Du aquatic transit New cold storage Yong, Zhang Lizhen Beilun refrigerator plant, factory floor, Guo County, refrigeration of the World Jun, Chen Wenbin, Ningbo City, Yu Zhihao, and other comrades installation companies - participated in the topic from the research work. 20 *

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