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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 6. Отображено 6.
27-11-2013 дата публикации

Alkali-free and chlorine-free concrete admixture activity activator

Номер: CN103408237A
Автор: Huang Hai, Wang Zhiyong, Chen Qianbao
Принадлежит:

The present invention relates to an alkali-free and chlorine-free concrete admixture activity activator, which is prepared through compounding a component A, a component B, a component C and a component D, wherein the component A is industrial calcium formate, the component B is industrial ferric sulfate, the component C is industrial ferric nitrate, and the component D is a self-made embryo. According to the present invention, the four industrial products are uniformly mixed and compounded, potassium ions, sodium ions and chloride ions do not exist, alkali-aggregate reaction potential hazard does not exist, and reinforcing steel bar corrosion can not be caused; activity indexes of mineral powder can be significantly improved, wherein activity index of S75 mineral powder can be increased to S95, and activity index of S95 mineral powder can be increased to S105; an early strength of the concrete added with the admixture can be significantly improved, a 28 d strength is improved, and a long-term ...

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Номер записи: 1
14-08-2013 дата публикации

Quasi-crystal abrasive paste applicable to surface mechanical finishing of soft metals

Номер: CN103242803A
Автор: Qiang Jianbing, Chen Qianbao, Dong Chuang, Wang Yingmin, Wang Qing
Принадлежит:

The invention discloses a quasi-crystal abrasive paste applicable to the surface mechanical finishing of soft metals, and the adopted abrasive material thereof is a quasi-crystal alloy powder material. The quasi-crystal abrasive paste comprises a quasi-crystal alloy and related phase materials; the granularity of a powdered abrasive material is less than or equal to 50mu m; the mass percentage of the quasi-crystal powdered abrasive material in the abrasive paste is 1-90%, and the balance of the abrasive paste refers to abradant auxiliary materials such as oil-soluble or water-soluble pastes and the like. According to the invention, based on the unique grinding behavior and mechanism, the abrasive paste has an efficient mechanical finishing and defect repair capacity to the surfaces of soft metals/alloy specimens or workpieces; and compared with traditional abrasive materials, a surface finishing effect required by workpieces can be achieved efficiently, and the erosion amount is low, therefore ...

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Номер записи: 2
18-07-2012 дата публикации

Preparation method of special high-elasticity high-impregnation room temperature curing two-component interpentration polyurethane patching material for ballastless track boss resin patching

Номер: CN102585164A
Автор: Wang Yufeng, Huang Hai, Huang Yuhua, Wang Zhiyong, Chen Qianbao
Принадлежит:

The invention discloses a preparation method of special high-elasticity high-impregnation room temperature curing two-component interpentration polyurethane patching material for ballastless track boss resin patching, which comprises the following three steps: preparing a modified interpentration polyether elastomer, synthesizing linear block MDI (diphenylmethane diisocyanate) prepolymer and curing two-component interpentration polyurethane. The patching material prepared using the method disclosed by the invention has the characteristics of proper viscosity, good permeability with boss resin, good compatibility, completely controllable curing time and strong interface adhesiveness, and has wide application prospects.

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Номер записи: 3
19-10-2011 дата публикации

Method for preparing novel low-alkaline liquid setting accelerator

Номер: CN102219423A
Автор: Huang Yuhua, Huang Hai, Wang Zhiyong, Chen Qianbao, Chen Juan, Wang Liang, Li Shuang, Li Long
Принадлежит:

The invention relates to the field of building materials, in particular to a method for preparing a novel low-alkaline liquid setting accelerator. The novel low-alkaline liquid setting accelerator is prepared by the following steps: adding sodium hydroxide, potassium hydroxide and aluminum hydroxide into water according to proportion, and reacting for 2-3h under the temperature being 95-120 DEG C, thereby obtaining aluminate mother liquor; dissolving sodium fluoride in water, and adding silicate into the water solution under a certain temperature, thereby obtaining a modifier; and finally, dropping the modifier into the aluminate composite mother liquor, and reacting fully, thereby obtaining the novel low-alkaline liquid setting accelerator. The setting accelerator has the properties of short setting time, low alkali content and good cement adaptability.

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Номер записи: 4
27-11-2013 дата публикации

Concrete mold release agent and preparation method thereof

Номер: CN103409218A
Автор: Huang Hai, Wang Zhiyong, Chen Qianbao
Принадлежит:

The present invention discloses a concrete mold release agent and a preparation method thereof. The raw material formula of the mold release agent is that: the amount of water is 80-95% of the total mass, a mass ratio of lard to rosin is 5:1, and other materials comprise, by the total amount of the lard and the rosin, 10-26% of sodium hydroxide, 10-30% of an emulsifying agent, 0.1-1% of tributyl phosphate, 0.2-1.5% of formaldehyde, 0.3-2.2% of dodecyl betaine, and an appropriate amount of organic montmorillonite. The preparation method comprises: carrying out a saponification reaction of lard, rosin and sodium hydroxide at a temperature of 95-105 DEG C under a mechanical stirring condition, and then adding other additives to obtain the finished product. Compared with other types of mold release agents, the mold release agent of the present invention has advantages of stable quality, longe product storage period, low use concentration, long service life, repeated use after one spraying, ...

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Номер записи: 5
27-11-2013 дата публикации

Special high performance environmental-protection type polyurethane waterproof coating material for railway roads and bridges, and preparation method thereof

Номер: CN103409055A
Автор: Huang Hai, Wang Zhiyong, Chen Qianbao
Принадлежит:

The present invention relates to a special high performance environmental-protection type polyurethane waterproof coating material for railway roads and bridges. The polyurethane waterproof coating material is a double component polyurethane waterproof coating material comprising a component A and a component B, wherein the component A comprises liquefied diphenylmethane-diisocyanate, polyether glycol, polyether triol and the like, and the component B comprises a curing agent, a modified filler, a pigment, a liquid filler, a composite additive and the like. According to the present invention, the liquefied diphenylmethane-diisocyanate, the liquid curing agent and other novel raw materials are adopted so as to avoid introduction of harmful substances and potential carcinogen substances, such that production and use of polyurethane waterproof coating materials are safe and environmentally friendly; and due to introduction of the modified filler, the prepared polyurethane waterproof coating ...

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Номер записи: 6