chemical cracking 中文意思是什麼
chemical cracking
解釋
化學裂解-
The results of experiment on the relationship between tensile strength, shrinkage, self - desiccation shrinkage and flat restraint cracking show that sra ' s physical shrinkage - reducing effect and ea ' s chemical expansion effect greatly enhance the volume stability of concrete and reduce the probability of early - cracking
對減縮劑與膨脹劑抗拉強度、干縮、自乾燥收縮及平板約束開裂的試驗結果表明： sra的物理減縮作用及膨脹劑的化學膨脹作用，大大提高了混凝土早期的體積穩定性，降低了早期開裂的概率。 -
Inorganic anti - cracking reinforced chemical additive, called wj, generates some tittle expansive crystals in hydration process in concrete to reduce the porosity and improve the distribution of pore size. the expansive power is process in common to tumefaction that petty crystalloid aft suck water and pressure to concrete pores that aft crystal gather volume. its adding weight was 8 % - - 12 % in cement, its restrained expansive ratio was about 0. 02 % - - 0. 06 %, and relevantil brought self - stress 0. 2mpa ?. 6mpa
無機增強抗裂材料wj摻入普通混凝土中，在水化硬化過程中生成一定量的微膨脹結晶體，降低空隙率，改善混凝土中孔結構分佈。其膨脹驅動力是凝膠尺寸的晶體鈣礬石吸水腫脹和結晶狀鈣礬石對孔隙產生膨脹壓的共同作用。當wj摻量為8一12兒在鋼筋和鄰位的限制下，使混凝土產生0 -
It is installed with various production equipment for the atmospheric distillation, catalytic cracking of heavy oil, delayed cocking, hydrogenated white oil, anti - corrosion additives, alkane - purpose chemical reagent and special oils
中國石化集團杭州煉油廠現有常減壓蒸餾、重油催化裂化、延遲焦化、加氫白油、防銹添加劑、烷烴化學試劑和特種油品等生產裝置。 -
Cracking involves the chemical breakdown of higher, less volatile hydrocarbons into smaller molecules.
裂化是使較重的低揮發性的碳氫化合物分裂成較小分子的化學分裂。 -
The catalyzer for heavy oil catalytic cracking manufactured by jingtai company is a chemical product. traditionally, service plays an auxiliary role in the marketing of chemical products, and usually after service is paid more attention
本文通過對重油催化裂化催化劑市場的需求和催化劑生產廠家的調研和分析，結合京泰公司重油催化裂化催化劑項目的swot分析，確定了京泰公司催化劑營銷以服務為重點的對策。 -
A new kind of multiple anti - cracking additive composed of multiple organic and inorganic ingredient is developed. lt improves anti - cracking and impermeability property of concrete. and can meet the demands of compressive strength and workability of fresh concrete. at the same time, we offer the integrity manufacture method of anti - cracking hpc. we discussed the relationship among compositions, construction and properties, studied the chemical reactions of phases, made the mechanism of reinforced and crack - resistance of concrete clear, and made concrete designed according to properties and engineering demand
通過系統深入的理論分析，運用多種現代分析測試手段，從材料各組份間的物理化學作用入手，系統研究材料中各組分與結構性能之間的關系，各相之間化學反應和各相分佈狀態，在已知的化學反應動力學和反應機理的基礎上，探明材料增強和抗裂原理，胡建勤：高性能混凝土抗裂性能及其機理的研究實現材料性能可設計的目的。 -
The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels
實驗結果顯示：鋼渣摻合料能顯著減緩水泥漿體水化速率，降低砂漿的水化溫升並延遲最高溫升時間；補償混凝土收縮，提高混凝土密實度，加強纖維與水泥石的界面粘結，增強混凝土力學性能，但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應，增韌鋼渣防滲抗裂混凝土；增加混凝土的破壞極限能，極大提高混凝土抗彎曲能力和韌性指數，改善混凝土脆性。 -
On the basis of above experiments, the chemical kinetic model inwhich organic matter of source rock of deep - formation in the north of songliao basin primarily crack into oil or gas is established, which set up a basis for evaluating oil - generating amount, gas - generating amount of source rock of deep formation in different periods ; set up the chemical kinetic model inwhich different qualities of oil and family constituents in oil secondarily cracked into gas, which provide theoretical foundation and practical methods for dynamic evaluation of gas - generating amount and oil - consuming amount in process of oil cracking. the geochemical features of source rocks in deep - formation of basins are systematically evaluated
在上述實驗基礎上，建立了松遼盆地北部深層源巖有機質初次裂解成油、成氣的化學動力學模型，為評價深層源巖于不同時期的生油量、生氣量奠定了基礎；建立了不同性質原油及原油中各族組分二次裂解成氣的化學動力學模型，為動態評價油裂解過程的成氣量和耗油量提供了理論依據和實用方法；對盆地深層源巖的地化特徵進行了系統評價；考慮到深層源巖的成熟度較高，實測地化指標（殘余有機碳、氫指數等）不能客觀反映源巖有機質的原始豐度和原始生烴潛力。 -
Uses : as the catalyst for petroleum cracking, and raw materials of re products, also widely used in chemical industry, metallurgical, light textile and agriculture industry etc
用途：做石油裂化劑及各種希土鹽的原料，還廣泛用於化工，冶金輕紡，農業等領域。 -
This paper analyses the problem of concrete cracking and leakage, and set up the model of the middle or low - strength steel slag anti - cracking and impermeable concrete ( acic ) on the base of the analysis. the four principles of water permeable resistance character, volume stability character, toughness and anti - chemical corroded character have been put forward for raw materials selection and durability design of acic, acic is designed by the theory of composite material and the theory of fiber - reinforced, and two series of acic, such as fly ash series and steel slag series, have been manufactured by means of mineral admixture, hybrid fiber and chemical admixture. hydrating heat, macro - mechanics quality, durability and microstructure of the acic have been researched
本文對中低標號大體積混凝土滲透開裂問題進行了研究，從混凝土自身結構形成與經濟角度指出大摻量粉煤灰與膨脹劑復合配製大體積混凝土的問題所在，提出採用鋼渣微細礦粉配製中低標號防滲抗裂混凝土的思路，運用復合材料理論設計中低標號防滲抗裂混凝土，提出了低水化熱、抗滲性能、體積穩定性、韌性和抗沖磨性能是中低標號防滲抗裂混凝土材料選擇和耐久性設計的主要原則，採用鋼渣微細粉復合混雜纖維、化學外加劑的技術路線，配製了適合於深水等特殊環境中的大體積中低標號鋼渣系列防滲抗裂混凝土，對其進行水化特性、宏觀物理力學性能、耐久性和微觀結構研究。 -
Following the development of catalytic cracking technology and the increase of refining temperature, this factory cooperates with china petrochemical ( beijing ) design institute to develop a series of refractories with high intensity, good insulation ability and small reheating linear change and good wearproof ability, whose physical and chemical property reaches or surpasses the level of the foreign product of the same kind
催化裂化在煉油裝置中地位舉足輕重，近年來公司為適應催化、裂化技術的不斷發展，設計研製了一系列強度高、隔熱性能好、重燒線變化小、耐磨性能高的煉油裝置用隔熱耐磨襯里，產品理化性能國內領先，甚至達到或超過國外同類產品的指標。 -
Too high temperature of the operating temperature or chemical gas in the operating ambience will cause hoses cracking
工作環境溫度過高或工作空間有化學氣體，可能會導致軟管龜裂。 -
On the base of studying the compatible of chemical admixture and mineral admixture with cement, according to heat of hydration, chemical shrinkage and environment condition in the course of concreting and restrained cracking sensitivity indicates different quantity of mineral admixtures lead to different effect to the stability of concrete, such as 30 % fly ash and 40 % ~ 60 % micro - slag can improve the stability, but silica fume deteriorates the stability
在研究了化學外加劑、礦物摻合料與水泥兼容匹配關系的基礎上，指出不同礦物摻合料對混凝土的體積穩定性（熱穩定性、化學收縮、干縮、開裂敏感性）的影響不同，粉煤灰摻量達到30 ，礦粉在40 60改善體積穩定性，硅灰惡化了體積穩定性。
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