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41results about How to "Will not enrich" patented technology

Continuous Casting Process of Steel for High Titanium Alloy Welding Rod

The invention relates to a continuous casting process of the metallurgy field and discloses a continuous casting process of steel for high titanium alloy welding rods. Full protection pouring is used during continuous casting, and long nozzle argon sealing protection pouring is used from a steel ladle to an intermediate ladle. The whole built-in submersed nozzle protection pouring is used from the intermediate ladle to a crystallizer. A covering agent is used by molten steel in the intermediate ladle. The electromagnetic stirring is used in the process of continuous casting and pouring. Full automation liquid level detection is carried out on the liquid level of the crystallizer. The continuous casting pulling speed is controlled automatically according to the degree of superheat of the intermediate ladle. The degree of superheat of the intermediate ladle in a first continuous casting and pouring furnace is controlled at 30-40 degrees centigrade. The pouring pulling speed is controlled in a range of 1.8-2.4 m/min. The protection slag is composed of the following components measured in percentage by weight: 0.80 +/- 0.15% of R, 35.0 +/- 3.5% of SiO2, 28.0 +/- 3.5% of CaO, less thanor equal to 5.0% of Al2O3, less than or equal to 4.0% of Fe2O3, less than or equal to 5.0% of MgO, 4.5 +/- 1.5% of F<->, 5.0 +/- 2.0% of K2O + Na2O and 12.0 +/- 2.5% of solid C. According to the continuous casting process, the molten steel is prevented from second oxidization in the process of pouring effectively; the stability of titanium in the molten steel is ensured; protection slag is prevented from denaturing; and the quality of the surface of a casting blank is enhanced.
Owner:NANJING IRON & STEEL CO LTD

Method for manufacturing spar cap for wind turbine blade

The invention discloses a method for manufacturing a beam cap for a wind turbine blade, and relates to the technical field of wind turbine manufacturing. The method comprises the following steps thata plurality of fiber plates are provided, each fiber plate is provided with a first side part and a second side part which are arranged opposite to each other and extend in the longitudinal direction,the first side part comprise a first arc-shaped surface and a second arc-shaped surface, and the second side part comprise another first arc-shaped surface and another second arc-shaped surface; theplurality of fiber plates are stacked in a mold in the vertical direction; the outer surface of the stacked fiber plates is coated with a layer of vacuum film, and after coating is finished, vacuum areas are formed among the fiber plates; a vacuum pump is used for vacuumizing; resin is supplied; and all the fiber plates are combined together by curing the resin. According to the method for manufacturing the beam cap of the wind turbine blade, in the width direction of the plate, the two sides are processed into round corners, so that the resin cannot be gathered and can sufficiently flow, so that the purpose of full infiltration is achieved, and the bonding strength among the plates is improved.
Owner:上伟(江苏)碳纤复合材料有限公司

Continuous casting process of steel for high titanium alloy welding rods

The invention relates to a continuous casting process of the metallurgy field and discloses a continuous casting process of steel for high titanium alloy welding rods. Full protection pouring is used during continuous casting, and long nozzle argon sealing protection pouring is used from a steel ladle to an intermediate ladle. The whole built-in submersed nozzle protection pouring is used from the intermediate ladle to a crystallizer. A covering agent is used by molten steel in the intermediate ladle. The electromagnetic stirring is used in the process of continuous casting and pouring. Full automation liquid level detection is carried out on the liquid level of the crystallizer. The continuous casting pulling speed is controlled automatically according to the degree of superheat of the intermediate ladle. The degree of superheat of the intermediate ladle in a first continuous casting and pouring furnace is controlled at 30-40 degrees centigrade. The pouring pulling speed is controlled in a range of 1.8-2.4 m / min. The protection slag is composed of the following components measured in percentage by weight: 0.80 + / - 0.15% of R, 35.0 + / - 3.5% of SiO2, 28.0 + / - 3.5% of CaO, less thanor equal to 5.0% of Al2O3, less than or equal to 4.0% of Fe2O3, less than or equal to 5.0% of MgO, 4.5 + / - 1.5% of F<->, 5.0 + / - 2.0% of K2O + Na2O and 12.0 + / - 2.5% of solid C. According to the continuous casting process, the molten steel is prevented from second oxidization in the process of pouring effectively; the stability of titanium in the molten steel is ensured; protection slag is prevented from denaturing; and the quality of the surface of a casting blank is enhanced.
Owner:NANJING IRON & STEEL CO LTD

Special dace feed as well as preparation method and application thereof

The invention discloses a special dace feed as well as a preparation method and application thereof. The special dace feed comprises the following raw materials in parts by weight: 5-12 parts of cuttlefish internal organ paste, 1-5 parts of fish oil, 18-26 parts of fish meal, 11-19 parts of areca peel and 23-31 parts of hibiscus mutabilis. The raw materials used for the special dace feed are environmental-friendly, free from toxic and harmful effects, broad in sources, low in price and easy to obtain; the preparation method is simple and is easy in industrialized production; when the special dace feed is used for raising parent daces, the effects of being free form residues, free from enrichment and free from pollution to breeding water bodies are achieved. In addition, the special dace feed also has the functions of promoting growth and enhancing immunity, and has higher social benefits and higher economic benefits. The special dace feed disclosed by the invention can strengthen the combination of sex hormones with target organs, so that the propagation capacity of parent daces is improved, the egg diameter and the sexual gland index of the parent daces can be enlarged, and the fertilization rate and the fry emergence rate of the parent daces can be substantially increased.
Owner:福州海汇生物科技实业有限公司

Special plant source insecticide for rice and preparation method for special plant source insecticide for rice

The invention relates to a special plant source insecticide for rice and a preparation method for the special plant source insecticide for rice. The preparation method for the special plant source insecticide for rice comprises a preparation process of master batch and a preventive insecticide and an emergent insecticide, a synthetic method for the preventive insecticide and a synthetic method for the emergent insecticide. By virtue of alkalization of raw materials and three-stage crushing, an alkaloid pure product is no longer deliberately extracted. According to the technical scheme, zero emission on the whole course is realized by virtue of simple and cheap treatment equipment without any waste residue discharge and any exhaust gas and wastewater, so that the preparation method is environmental-friendly and obvious in economical benefit. The raw materials of the plant source insecticide are natural plants, and the effective components of the plant source insecticide are natural substances, have a smooth degradation path in nature and are not enriched and are free of residues; the insecticide prepared by taking veratrum nigrum as the raw material has the advantages of being strong in selectivity and low in toxicity to human, livestock and enemies. The technical scheme provided by the invention is of universality, and a fresh veratrum nigrum product, a fresh euphorbia fischeriana product and a fresh artemisia capillaris product can be used for implementing the insecticide according to the technical scheme provided by the invention.
Owner:黑龙江东北亚林产品有限公司

Titanium containing slurry titanium tetrachloride recycling system and recycling method

The invention discloses a titanium containing slurry titanium tetrachloride recycling system, and a recycling method. The titanium containing slurry titanium tetrachloride recycling system comprises acharging assembly, a high position tank, a molten salt chlorination furnace, and a dust collecting chamber; the charging assembly is communicated with the high position tank; the dust collecting chamber is communicated with the molten salt chlorination furnace; the high position tank is arranged above the dust collecting chamber, and is communicated with the dust collecting chamber. The titaniumcontaining slurry titanium tetrachloride recycling system is used for extracting residual high solid impurity content titanium containing slurry from equipment used for producing titanium tetrachloride, stirring the titanium containing slurry, conveying the titanium containing slurry into the molten salt chlorination furnace, generating titanium tetrachloride high temperature smoke with waste heat, realizing waste residue separation and collection, realizing stable and high efficiency recycling of titanium tetrachloride from the titanium containing slurry, and avoiding enrichment of impuritiesin the slurry in subsequent dust collecting condensation system at the same time. Flexible selection of a recycling back to the dust collecting chamber mode or an intermittent type recycling to the dust collecting chamber mode is realized, flexible matching with the temperature in the dust collecting chamber is realized through controlling on slurry spraying flow amount, so that titanium tetrachloride recycling rate and efficiency can be increased effectively.
Owner:CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD

Compound acaricide for greening plants and preparation method of compound acaricide

The invention relates to the technical field of acaricide compounding and discloses a compound acaricide for greening plants and a preparation method of the compound acaricide. The acaricide is mainly prepared from active ingredients as follows: aconite, radix salviae miltiorrhizae, artemisia argyi, flos lonicerae, rhizoma chuanxiong, bauhinia variegate, radix stellerae chamaejasmes, photinia serratifolia, rhizoma dryopteridis crassirhizomatis, an organic solvent, a penetrant, a lubricant and and water. The preparation method of the compound acaricide comprises main steps of cleaning, decoction, concentration and the like. Compared with a traditional compound acaricide, the acaricide has the following characteristics: 1, common green plant Chinese herbal medicines are taken as main raw materials and are not prone to accumulating on plants and are safe and friendly to the ecological environment; 2, the preparation method is simple and feasible, low in cost and suitable for large-scale popularization in urban greening projects; 3, the raw materials are unique in mixing action mechanism and can play a synergistic efficiency to improve the control rate of pest mites, in particular to tetranychus cinnabarinus, tetranychus urticae, tetranychus viennensis zacher and other common pest mites of green plants.
Owner:南宁马瑞娜装饰工程有限公司
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