Development of polycarboxylate superplasticizer

According to the different molecular structure, it can be divided into four generations of polycarboxylate series superplasticizer, the first generation is acrylic acid copolymer, the second generation is propylene ether type, the third generation is…

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What problems should we pay attention to in the development of graphite technology?

The purity of carbonaceous raw materials such as petroleum coke and pitch coke is relatively high, and the ash content is usually less than 0.5%, while the purity of natural graphite treated by flotation is relatively low, and the carbon content is u…

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Analysis of wig production and market development for straight lace front wigs

BSF cracks down on human hair smuggling through India-Bangladesh border Kolkata/Krishna Nagar, May 14: In the Krishnagar situation, the number of incidents sent to Bangladeshi smugglers through the multiple points of the Indochina border in the Krish…

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The common problems in the use and maintenance of lithium batteries

The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V…

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Humanity will Re-enter the Ceramic Age from the Steel Age

Ceramic materials refer to a class of inorganic non-metal materials made of natural or synthetic compounds through shaping and high-temperature sintering. It has the advantages of high melting point, high hardness, high wear resistance, and oxidation…

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IN718: The Most Widely Used Superalloy Material in the Field of Additive Manufacturing

The unique alloy composition design of IN718 makes it have good comprehensive properties, namely higher strength, creep resistance and fatigue life, good ductility, excellent oxidation resistance, especially under 650℃, its mechanical properties Has…

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