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506 results about "Chemical Ingredients" patented technology

Ingredient labels for food and other products we use every day, like toothpaste or soap, often include unfamiliar chemical names – even basic ingredients like salt, water and baking soda are often identified on a product label by technical names: sodium chloride, aqua and sodium hydrogen carbonate.

Transparent lead-free fritted glaze with low expansion coefficient and preparation method thereof

ActiveCN101717276ADelicate and bright glazeHigh transparencyStrontium carbonateCalcium borate
The invention relates to a transparent lead-free fritted glaze with low expansion coefficient and a preparation method thereof. The fritted glaze comprises the following chemical ingredients of: 59 to 66 percent of SiO2, 10 to 15 percent of Al2O3, 5 to 10 percent of B2O3, 3 to 6 percent of CaO, 4 to 8 percent of MgO, 0 to 3 percent of K2O, 0 to 2 percent of Na2O, 0 to 1 percent of Li2O, 1 to 5 percent of ZnO and 0 to 2 percent of SrO; and the fritted glaze comprises the raw materials of: 10 to 25 percent of kaolin, 15 to 30 percent of quartz, 10 to 25 percent of potassium feldspar, 0 to 8 percent of dolomite, 2 to 6 percent of grammite, 10 to 20 percent of roasted talc, 1 to 6 percent of zinc oxide, 2 to 8 percent of boric acid, 5 to 15 percent of calcium borate, 1 to 5 percent of alumina, 0 to 2 percent of lithium carbonate and 0 to 3 percent of strontium carbonate. The expansion coefficient of the fritted glaze is 3.7-4.5*10-6/DEG C (RT to 500 DEG C), the melted temperature is 1400 DEG C to 1500 DEG C, the glaze firing temperature is 1130 DEG C to 1230 DEG C; and the transparent lead-free fritted glaze has fine and bright glaze surface, high transparency, low expansion coefficient as well as no lead precipitation and is particularly suitable for double-fired hard porcelain body with lower expansion coefficient.
Owner:JINGDEZHEN CERAMIC INSTITUTE

Hardening and tempering high-strength steel plate for wood based panel equipment and production method of tempering high-strength steel plate

InactiveCN102181794AFine tissue structureGood welding performanceImpurityDecarburization
The invention relates to a hardening and tempering high-strength steel plate for wood based panel equipment and a production method of the steel plate, and belongs to the field of manufacturing low-alloy high-strength structural steel. The steel plate consists of the following chemical components in percentage by weight: 0.18 to 0.24 percent of C, 0.20 to 0.50 percent of Si, 0.80 to 1.20 percent of Mn, more than or equal to 0.02 percent of P, more than or equal to 0.01 percent of S, 0.20 to 0.50 percent of Mo, 0.20 to 0.50 percent of Ni, 0.70 to 1.00 percent of Cr, more than or equal to 0.003percent of B, 0.017 to 0.030 percent of Nb, 0.040 to 0.050 percent of V, 0.017 to 0.026 percent of Ti, and the balance of Fe and inevitable impurities. The production method of the steel plate comprises the following steps of: electric furnace smelting, vacuum decarburization /vacuum arc decarburization (VD/VOD) furnace vacuum decarburization, ladle furnace (LF) furnace refining, continuous casting (die casting), billet steel (ingot) clearing, heating, plate rolling, hardening and tempering, steel plate checking and polishing, tempering, sampling inspection, and warehousing. The hardening andtempering high-strength steel plate for the wood based panel equipment adopts Cr-Ni-Mo-B system micro-alloy elements for composite strengthening, and acquires good obdurability matching through a reasonable heat treatment process, and simultaneously the welding performance of a thick plate is not reduced.
Owner:WUYANG IRON & STEEL +1

New mean production control type threshing and redrying method

The invention discloses a new mean production control type threshing and redrying method, which comprises a raw material preparation process, a threshing process, a redrying process and a packaging process. A process for the near infrared online detection of chemical ingredient contents of tobacco leaves is added before the threshing and redrying and after the threshing and redrying respectively, and the online detection of a near infrared spectrometer cooperates with a computer control system before redrying and links with threshing and redrying equipment to form closed-loop control. In the invention, the addition of the near infrared online detection process before leaf redrying realizes the mean management of threshing and redrying line, eliminates the defect of the past threshing and redrying technique that the control indexes of inner quality are short, thus laying a good foundation for threshing and redrying enterprises to improve processing level and satisfying the requirements of cigarette processing enterprises. The addition of the near infrared online detection after redrying ensures that each box of products have labels of chemical ingredient content data, thus providing powerful data reference for tobacco alcoholization and cigarette prescription, and leading all jobs to have relatively accurate chemical index data as basis.
Owner:BAOFENG REDRYING FACTORY OF TIANCHANG INT TOBACCO CO LTD

Low-alloy high-strength steel with yttrium-based rare earth and manufacturing method thereof

The invention discloses low-alloy high-strength steel with yttrium-based rare earth. The low-alloy high-strength steel with the yttrium-based rare earth comprises the following chemical ingredients in percentage by mass: 0.08-0.19% of C, 0.15-0.55% of Si, 1.20-1.70% of Mn, not greater than 0.040% of P, not greater than 0.040% of S, not greater than 0.040% of Nb, not greater than 0.18% of V, not greater than 0.020% of Ti, not greater than 0.40% of Ni, not greater than 0.30% of Cr, not greater than 0.30% of Cu, not greater than 0.08% of Mo, not greater than 0.050% of Alt, not greater than 0.012% of N, 0.002-0.003% of O, and balance iron Fe, rare earth and inevitable impurities, wherein the rare earth is the yttrium-based rare earth; the steel comprises the following dissolved solid matters: 0.004-0.010% of Y, and 0.014-0.025% of Ce, and the residues exist in the form of combining Y and Ce with O, Mg, Al and S in the steel to form small dispersed compound inclusions; the compound inclusion component contains, in percentage by mass, 25.40-70.10% of Y, and 3.25-19.15% of Ce; and a matrix structure of the steel is a fine ferrite and perlite structure. The low-alloy high-strength steel disclosed by the invention is improved by utilizing the yttrium-based rare earth for exerting the effects of purification, modification, microalloying and oxide metallurgy in the steel.
Owner:JIANGXI UNIV OF SCI & TECH +1

Ferrite stainless steel cold-rolled steel band and manufacturing method thereof

The invention relates to a ferrite stainless steel cold-rolled steel band and a manufacturing method thereof. The ferrite stainless steel cold-rolled steel band comprises the following chemical ingredients in percentage by weight: 0.02%-0.04% of C, 0.10%-0.50% of Si, 0.10%-1.00% of Mn, 14.0%-19.0% of Cr, less than or equal to 0.030% of P, less than or equal to 0.010% of S, more than 0% while lessthan or equal to 0.030% of N, more than 0% while less than or equal to 0.60% of Ni, and the balance of Fe and unavoidable impurities. The manufacturing method comprises the following steps: (1) smelting, i.e. smelting liquid steel according to the requirement of the steel band; (2) continuous casting, i.e. casting into a continuous casting billet; (3) casting billet hot rolling, i.e. rolling the casting billet into a hot rolled coil; (4) hot coiling annealing, i.e. preserving the temperature at 800 DEG C-880 DEG C for the temperature preserving time of 10-13 hours, freely reducing the temperature to 600 DEG C after the temperature preservation is completed; (5) cold rolling, i.e. adopting once cold rolling or twice cold rolling among cold rolled finished products; and (6) cold coiling annealing, i.e. controlling annealing temperature at 860+/-20 DEG C, and controlling annealing time according to 2-5 minutes/mm. The ferrite stainless steel cold-rolled steel band has good cold processingforming property and excellent crinkling and breaking resistance.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

High-nitrogen non-magnetic austenitic stainless steel and manufacturing method thereof

The invention relates to high-nitrogen non-magnetic austenitic stainless steel. The high-nitrogen non-magnetic austenitic stainless steel comprises following chemical components including, by weight percent, 0.01% to 0.10% of C, not larger than 1.0% of Si, 17.0% to 24.0% of Mn, not larger than 0.035% of P, not larger than 0.015% of S, 1.0% to 4.0% of Ni, 17.0% to 24.0% of Cr, not larger than 1.0%of Mo, 0.50% to 0.80% of N and the balance Fe and inevitable impurities. The manufacturing method comprises the steps that the electric furnace+AOD+LF manner is adopted for smelting, continuous casting or die casting is adopted for making a slab ingot, and during continuous casting, the superheat degree is controlled to be smaller than 50 DEG C; a continuous casting blank or die casting slab ingotis put into a stepping type heating furnace to be heated, hot rolling on a rolling machine is carried out to form a board of the needed specification, the final rolling temperature ranges from 800 DEG to 950 DEG C, the hot-rolled board is subject to acid pickling, and the high-nitrogen non-magnetic austenitic stainless steel hot-rolled board finished product is obtained. The product has high yield strength, good ductility and toughness, corrosion resistance and wide application field and has no magnetism.
Owner:宝武特种冶金有限公司

Titanium carbide ceramic-enhanced visible arc self-shielded flux-cored wire for high-chromium cast iron

The invention discloses a titanium carbide ceramic-enhanced visible arc self-shielded flux-cored wire for high-chromium cast iron, and the flux-cored wire provided by the invention comprises the following chemical components in percentage by weight (wt%): 60 to 70% of high-carbon ferrochrome, 1 to 2% of high-carbon ferromanganese, 1 to 3% of ferrosilicon, 1 to 3% of ferrovanadium, 1 to 3% of ferromolybdenum, 2 to 8% of TiC, 15 to 25% of graphite, and 1 to 2% of aluminum/magnesium powders; and the flux-cored wire has a low-carbon steel strip serving as an outer wrapper. The flux-cored wire is made by use of flux-cored wire production equipment which has a flux powder filling rate of 37%to 45%, and drawn by a wire drawing machine 2 to 5 times until the outside diameter of the flux-cored wire reaches the level F4. The flux-cored wire disclosed by the invention can be applied to overlay-welding under the conditions of no preheating before welding and no heat treatment after welding, and is very convenient in on-site use. By virtue of overlay-welding using the flux-cored wire disclosed by the invention, deposited metals have a high hardness up to HRC63-67 and better wear resistance andare not liable to stripping, and the service lives of large-sized high-chromium cast iron wear-resistant parts are 2 to 4 times those of integrally-machined parts.
Owner:YANSHAN UNIV

Method capable of improving quality of large-section peritectic steel continuous casting billet

InactiveCN107838390AAvoid Low Level CastingUniform solidificationAlkalinityAlloy
The invention discloses a method capable of improving the quality of a large-section peritectic steel continuous casting billet. The method comprises control over the following processing steps that (1) the chemical ingredients of low-alloy peritectic steel are optimized; (2), after VD treatment, a fed calcium line is controlled to perform final deoxidation and inclusion modification treatment, and soft blowing is performed before casting; (3), full package operation is adopted for a tundish, the tonnage is controlled, and low-liquid-level casting is avoided; (4), the superheat degree of the tundish is controlled in the continuous-casting throwing process, and meanwhile the temperature difference of molten steel between two furnaces is controlled; (5), the fed-water temperature of a crystallizer and the temperature difference between fed water and discharged water are controlled, meanwhile, the narrow edge taper of the crystallizer is increased, and the shrinkage quantity of the peritectic steel is compensated; (6), casting powder special for the peritectic steel is selected, wherein the casting powder is high in alkalinity, low in viscosity and high in melting rate; (7), after thecontinuous casting billet is controlled to enter a secondary cooling zone by 12 meters, electromagnetic stirring is applied, and meanwhile the secondary cooling water amount is lowered. The surface quality and the internal quality of the large-section peritectic steel continuous casting billet cast through the method are both improved to a great extent.
Owner:WUYANG IRON & STEEL

Method for electric-arc additive manufacturing of aluminum alloy multi-layer single-pass closed structural member

ActiveCN106392270AGood metallurgical bonding performanceImprove bindingArc welding apparatusClosed loopMechanical property
The invention provides a method for electric-arc additive manufacturing of an aluminum alloy multi-layer single-pass closed structural member. The method includes the following steps that an aluminum alloy metal wire is used as a forming material, and a welding electric arc is used as a heat source to melt the aluminum alloy metal wire; and a welding device is driven by a driver to move in a predetermined forming path to form a layer of single-pass closed piece on a base plate in an accumulating mode, then the welding device is lifted by a predetermined height for accumulation of the next layer, and the aluminum alloy multi-layer single-pass closed structural member is formed by repeating the action. The predetermined forming path is a closed loop which is provided with at least two arcing points, and every two adjacent accumulated layers are different in arcing point and opposite in direction. According to the method, equipment is simple, the material utilization rate can reach 100%, the production cost is lowered, and the production cycle is shortened; and a formed part is composed of all-weld metal, and is high in density, good in metallurgical bonding performance and uniform in chemical ingredient, and the mechanical property of the formed part can reach or exceed that of a same-ingredient casting.
Owner:BEIJING HANGXING MACHINERY MFG CO LTD

Inclusion control method of Si-Mn-killed non-oriented silicon steel

The invention provides an inclusion control method of an Si-Mn-killed non-oriented silicon steel, and belongs to the technical field of steel smelting. The non-oriented silicon steel comprises the following chemical components: not greater than 0.005% of C, 0.4-1.0% of Si, 0.20-0.80% of Mn, not greater than 0.04% of P, not greater than 0.005% of S, not greater than 0.005% of Als, and the balance Fe and inevitable impurities. The method comprises the processes of smelting through a converter, refining under RH and vacuum, and continuously casting; the slag amount of the steel from the converteris strictly controlled; lime, synthetic slag and calcium carbide are added to adjust the slag; the refining under HR and vacuum is that a deep decarbonization mode is carried out; after decarbonization, metallic aluminum is added to realize preliminary dexidation, and SiC is added to the ladle slag surface at the same time in order to deoxidize and modify the slag; the operation is circulated for1-3min; then low-carbon low-titanium ferrosilicon is added to realize Low carbon, low titanium ferrosilicon; the operation is circulated for 3-6min, then manganese metal, ferrophosphorus and the likeare added to alloy, and the net circulating time is beyond 8min after alloying. With the adoption of the method, the composition of nonmetal inclusions in the steel can be improved, so that the performances of the non-oriented silicon steel can be improved, and the foundation is supplied to develop high-performance non-oriented silicon steels.
Owner:INST OF RES OF IRON & STEEL JIANGSU PROVINCE +2

Method for extracting cinnamon oil

The invention relates to a method for extracting cinnamon oil from dry branches and leaves of cinnamon. By the method, the extraction time can be shortened, oil yield can be improved, energy consumption can be reduced, and the production cost can be reduced. according to the method, a surfactant is used as a leaching adjuvant in a water vapor distillation method, the water-wetting of surfaces of the branches and leaves of the cinnamon is accelerated under the action of wetting, permeation and solubilization of the surfactant, and the water permeates through plant cells, so that essential oil inside the plant cells is carried away from the cells; and the essential oil is subjected to exchange by heat energy in a system, so that the essential oil is azeotropic with water vapor to be distilled with the water vapor, and the distilled essential oil is condensed, cooled and subjected to centrifugal sedimentation to obtain the cinnamon oil. According to the method, the distillation time is short, so the change of heat sensitive chemical ingredients in the essential oil due to long-term heating is avoided, and the influence on aroma of the essential oil due to the coking of plant raw materials caused by overheating is also avoided. The cinnamon oil is light in color and pure in aroma, and does not have the smell of scorching.
Owner:GUANGXI SANPOTEL HEALTH IND CO LTD

High-damp-heat-resistant marine atmosphere high-strength weathering resistant steel

The invention provides high-damp-heat-resistant marine atmosphere high-strength weathering-resistant steel and belongs to the technical field of weathering-resistant steel. The weathering resistant steel comprises chemical ingredients of, in percentage by weight, 0.01-0.03 wt% of C, 0.30-0.50 wt% of Si, less than or equal to 0.01 wt% of P, less than or equal to 0.007 wt% of S, 0.30-0.50 wt% of Mn, 0.80-1.00 wt% of Cu, 2.90-3.10 wt% of Ni, 0.10-0.30 wt% of Mo, 0.20-0.30 wt% of Sn, 0.05-0.10 wt% of Sb, 0.40-0.60 wt% of Cr, less than or equal to 0.02 wt% of Nb, 0.01-0.03% of RE and the balance Fe and other inevitable impurity elements. Ultra-low carbon is adopted for ingredient design, the Sn, Sb and RE corrosion-inhibition alloy elements are added on the basis of a Cu-Ni-Cr-Mo alloy system in a compounded manner, and a great number of thin and small needle-shaped ferrite tissues are obtained supplemented by the microalloyed element Nb. The high-damp-heat-resistant marine atmosphere high-strength weathering resistant steel has the advantages that the steel has excellent weathering resistance and is particularly resistant to the high-damp-heat-resistant marine atmosphere environment, and corrosion resistance of the steel is increased by about three times that of plain carbon steel Q345 and is increased by about two times that of traditional weathering resistant steel Q450NQR1; and meanwhile, the steel has strength of 700 MPa level, the yield strength ratio is less than or equal to 0.80, and the extension rate is larger than or equal to 15%.
Owner:CENT IRON & STEEL RES INST

Hot-forming component with tensile strength being above 1800MPa grade and excellent cold bending performance, and preparation method thereof

ActiveCN110423953AExpand phase areaLowering temperatureChemical IngredientsCrystallite
The invention discloses a hot-forming component with the tensile strength being above 1800MPa grade and an excellent cold bending performance, and a preparation method thereof. The hot-forming component is prepared from the following chemical components in percentage by weight: 0.29 to 0.35 percent of C, less than or equal to 0.5 percent of Si, 0.5 to 1.5 percent of Mn, less than or equal to 0.020percent of P, less than or equal to 0.010 percent of S, less than or equal to 0.50 percent of Cr, 0.01 to 0.06 percent of Al, 0.01 to 0.06 percent of Nb, 0.01 to 0.06 percent of V, less than or equalto 0.5 percent of Mo, and the balance Fe and inevitable impurities. A surface layer of the hot-forming component is a soft-phase ferritic structure, an inner layer of the hot-forming component is a martensitic structure, and the grain size is less than or equal to 10 mum. By adopting the component designs with low Si, low Mn, low Cr, zero Ti, zero B, and Mo, and combining thermal mechanical control processing (TMCP), continuous annealing and hot forming processes, the high-toughness hot-forming steel with the tensile strength being larger than or equal to1800MPa grade and well-closed formation is obtained; and in the preparation process, through the control of a preparation technology, a decarburized layer with the thickness ranging from 15 to 25 mum is obtained after hot rolling, so thatthe cold bending performance of the hot-forming component is improved.
Owner:MAANSHAN IRON & STEEL CO LTD

Water-tolerant and mould-proof putty powder for internal wall and use method of water-tolerant and mould-proof putty powder

InactiveCN105385219AEasy to fillGood leveling performance ImpermeabilityAntifouling/underwater paintsCovering/liningsBasementCellulose
The invention relates to water-tolerant and mould-proof putty powder for an internal wall and a use method of the water-tolerant and mould-proof putty powder. The water-tolerant and mould-proof putty powder for the internal wall is prepared from, by weight, 100-200 parts of Albo white cement, 200-300 parts of ash calcium, 3-8 parts of mildew preventive, 3-8 parts of cellulose, 15-30 parts of Wacker rubber powder, 600-800 parts of coarse whiting, 1-5 parts of antifoaming agent, 1-5 parts of starch ether, 1-5 parts of retarder and 5-10 parts of lubricant. The water-tolerant and mould-proof putty powder for the internal wall has good filling and leveling performance and impermeability, the water tolerating and alkali resisting performance is good and exceeds the national standard, environment friendliness is achieved, no pollutional chemical ingredient exists, the performance is stable, no harm is caused to the human body after the water-tolerant and mould-proof powder is solid and dry, meanwhile, the growth and development of mould can be restrained, the high sterilization and mould preventing function is achieved, and the putty powder is especially used for coating damp faces of bathrooms, basements and the like.
Owner:JINAN LONGPO NEW BUILDING MATERIALS TECH CO LTD
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