point corrosion 中文意思是什麼

point corrosion 解釋
點蝕
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  • corrosion : n. 腐蝕，侵蝕；【植物；植物學】溶蝕。 corrosion preventive 防腐劑。
  1. All of these aspects need to be improved. considering the disadvantages of the two kinds of the deicers, great amounts of the science data are referred in the research experiment, by developing the main materials and the additives, a new kind of deicer : pal is founded. not only does pal remain the advantages of the traditional deicer such as cheap materials and low freezing point : - 43. 8 c, but it has the character of cma, low corrosion to steel and concrete

    針對上述除冰劑的缺點，本課題收集了國內外大量的相關科技文獻，通過對主體物料和添加劑兩方面的改善，尋找到一種新型除冰劑pal ，它既保留了傳統除冰劑的優點，原料廉價易得，低冰點，可達- 43 . 8 ；又兼有cma的優點，對鋼鐵幾乎無腐蝕，對混凝土無不良影響。
  2. Is a hard, brittle, corrosion - resistant, gray to white metallic element extracted from wolframite, scheelite, and other minerals, having the highest melting point and lowest vapor pressure of any metal

    顏色呈灰色或棕黑色，硬度高，延性強，熔點極高，常溫下不受空氣侵蝕主要用途是製造燈絲和高速切削合金鋼，各種鎢電極，也用於光學儀器，化學儀器方面。
  3. Tooth surface knocked burr or point corrosion on tooth surface or not in tangency

    輪面磕碰，有毛刺或面發生點蝕或接觸不良
  4. Zro2 fibrous cloths are characterized by their high melting point ( 2600 ), high - temperature resistance ( 2200 ), oxidation - corrosion resistance, quick absorbing alkaline, high alkaline absorption, and low heat - conductivity and resistivity, etc. zroi fibrous cloths that can be used as the nickel - hydrogen battery separators were first developed by using precursor process at home

    氧化鋯纖維布具有熔點高（ 2600 ） 、耐高溫（ 2200 ） 、抗氧化、耐腐蝕、熱傳導率低、吸堿速度快、吸堿率高、面電阻小等特點。
  5. Normal heat shrinkable tube is universally applied in insulated protection of wire connector and terminal, soldered point, resistor and capacitor ; in anti - corrosion of metallic pod and as wire distinctive mark etc

    阻燃性熱縮絕緣套管廣泛應用於電線連接終端，電阻和電容的絕緣保護；金屬的防腐防銹；電線的標志等。
  6. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  7. 12 point self - locking flange nuts, in e - z 6 nct 25 corrosion resisting steel. iso thread

    E - z 6 nct 25耐蝕鋼制十二角頭自鎖法蘭面螺母. iso螺紋
  8. Because calculated dew point of gas is about from 85 to 110, so we should consider low temperature corrosion

    計算了陜北天然氣露點為85 ? 110 。因此將排煙溫度降低到60后，考慮了低溫腐蝕的問題。
  9. Abstract : the causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %

    文摘:分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水，蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰，排煙溫度高，煙氣熱量未回收利用以及爐子保溫襯里效果差等問題，提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明，本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題，提高了保溫效果，減少散熱損失1 . 25 % ，排煙溫度降至170左右，裝置的爐效率由83 %左右提高到90 %以上
  10. The causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %

    分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水，蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰，排煙溫度高，煙氣熱量未回收利用以及爐子保溫襯里效果差等問題，提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明，本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題，提高了保溫效果，減少散熱損失1 . 25 % ，排煙溫度降至170左右，裝置的爐效率由83 %左右提高到90 %以上
  11. Analysis and deal with gear ' s point corrosion of 4 m winder gearbox

    絞車減速器齒輪點蝕問題的分析和處理
  12. Acid dew point corrosion

    酸露點腐蝕
  13. The results are follows : chemical composition, tensile strength, yield strength and elongation accord with standard, part corrosion of outside is dew point corrosion, equable corrosion of inside is brought by deoxidized water

    結果表明：其化學成份、抗拉強度、屈服強度、延伸率均符合標準要求，管材外表面局部腐蝕是因露點腐蝕造成，管材內表面受除氧水的作用均勻腐蝕。
  14. Based on practical engineering, the multi - tangential firing technology and the variance perimeter wind technology were introduced in this paper too. from the practical point of view, in this paper, we state the application of multi - tangential firing technology to setting the high temperature corrosion of the water wall tubes of boiler

    本文對鍋爐水冷壁高溫腐蝕有關機理、影響因素以及預防措施作了詳盡的論述，並結合工程實際，詳細介紹多切圓燃燒技術以及變異周界風技術，從實踐角度介紹多切圓燃燒技術在解決鍋爐水冷壁高溫腐蝕中的應用。
  15. Abstract : according to the realities of existing engineering structures, the logostic normal distribution is used to described the common variables in the analysis of structural reliability. the checking point method of simulation logistic normal distribution is proposed. the appliation of the logistic normal distribution is demonstrated by the reliability analysis of durability for corrosion of steel reinforcement

    文摘:根據在役工程結構的實際情況，採用對數正態分佈來描述可靠度分析中常遇到的隨機變量；討論了擬對正態分佈的驗算點法；通過對鋼筋混凝土鋼筋銹蝕的耐久性可靠度分析，說明了擬對數正態分佈法的應用。
  16. Aluminium titanate ( at ) has many excellent properties such as low thermal expansion coefficient, thermal conduction coefficient, high melting point, endured corrosion and thermal resistance, so it is one of the best materials with low thermal expansion coefficient resisting high temperature

    鈦酸鋁由於具有接近於零的熱膨脹系數、低的導熱系數、高熔點、耐腐蝕和抗熱沖擊性能好等特點，是目前低膨脹材料中耐高溫性能最好的一種之一。
  17. Aluminium titanate ( al2tio5, at ) has many excellent properties such as low thermal expansion coefficient, thermal conduction coefficient, high melting point, endured corrosion and thermal resistance, so it is one of the best materials with low thermal expansion coefficient resisting high temperature

    鈦酸鋁（ al _ 2tio _ 5簡稱at ）因其具有接近於零的熱膨脹系數、低的導熱系數、高熔點、耐腐蝕和抗熱沖擊性能好等特點，是目前低熱膨脹材料中耐高溫性能最好的材料之一。
  18. From this point of view, the fluranted polymers have the stronger waterproof function and resistance to acid and alkali corrosion

    研究結果也反映出兩種含氟聚合物不明顯影響文物的透氣性，保持了文物的必要呼吸，起到長效保護的作用。
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