42 results about "Density of solids" patented technology

This hot rolled steel contains, in terms of mass %, C: 0.01 to 0.1%, Si: 0.01 to 0.1%, Mn: 0.1 to 3%, P: not more than 0.1%, S: not more than 0.03%, Al: 0.001 to 1%, N: not more than 0.01%, Nb: 0.005 to 0.08%, and Ti: 0.001 to 0.2%, with a remainder being iron and unavoidable impurities, wherein a formula: [Nb]×[C]≦4.34×10⁻³ is satisfied, a grain boundary density of solid solution C is not less than 1 atom/nm² and not more than 4.5 atoms/nm², and a grain size of cementite grains precipitated at grain boundaries within the steel sheet is not more than 1 um. This method for manufacturing a hot rolled steel sheet includes: heating a steel slab having the same composition as the above hot rolled steel sheet at a temperature that is not less than a temperature of SRTmin (° C.) and not more than 1,170° C.; performing rough rolling at a finishing temperature of not less than 1,080° C. and not more than 1,150° C.; subsequently starting finish rolling within not less than 30 seconds and not more than 150 seconds at a temperature of not less than 1,000° C. but less than 1,080° C.; completing the finish rolling within a temperature range from not less than an Ar₃ transformation point temperature to not more than 950° C. so as to achieve a final pass reduction ratio of not less than 3% and not more than 15%; and conducting cooling at a cooling rate exceeding 15° C./sec from a cooling start temperature to a temperature within a range from not less than 450° C. to not more than 550° C., and then coiling the steel sheet.

A uniform phase-distributing apparatus in the liquid-contained multi-phase fluidizing system where the density of solid phase is higher than that of liquid phase features that the material feeding inlet is arranged on the bottom of case, the sleeve pipe structure consisting of at least two nested pipes is arranged on the top of case, and the predistributor and master distributor are used. Its advantage is stable fluidizing state.

The invention relates to a measurement method for the density of a solid material, which is mainly applied to experiment teaching of universities and technical secondary schools. The method comprises the following steps of: measuring the mass m3 of a solid material sample to be detected by an electronic scale; placing a container containing water with the density of Rho0 on the electronic scale, and immersing a special sample container into the water, wherein the special sample container does not contact the container for containing the water, and the reading of the electronic scale is m2; placing the solid material sample to be detected into the special sample container and immersing the sample and the sample container into the water, wherein the sample does not contact the sample container, and the reading of the electronic scale at the moment is m4; and solving the density of the sample to be detected. The method disclosed by the invention is simple, convenient, rapid and high in measurement precision and is applicable to solid material samples with different densities and different shapes.

The present invention discloses a method for detecting the dielectric constant of an irregularly-shaped aggregate. The method comprises the following steps that: after being weighed, the irregularly-shaped aggregate is mixed with liquid paraffin, and the mixture of the irregularly-shaped aggregate and the liquid paraffin is poured into a mold, after the mixture is cooled, so that a regularly-shaped paraffin and aggregate two-phase mixture can be obtained; a pure paraffin sample is prepared with the same mold; the sample is weighed, and the volume of the sample is calculated, so that the density of solid paraffin is obtained, and the volume ratio of the paraffin to the aggregate in the paraffin and aggregate two-phase mixture is obtained; the dielectric constants of the pure paraffin sample and the two-phase mixture are measured through a dielectric constant test system; and a composite material linear model is inferred, so that the dielectric constant calculation formula of the aggregate can be obtained. The test method used in the invention is simple and convenient, can measure the dielectric constant of the irregularly-shaped aggregate and is of great significance for the research of the dielectric properties of asphalt mixtures and the improvement of the detection precision and applicability of ground penetrating radars. The test method can meet actual requirements from the aspects of the rationality of test schemes and the convenience of test operation.

The present invention provides a method of online analysis of mineral waste content of a slurry in a mineral separation process, said method including the steps of: measuring the density of said slurry (10); measuring the concentration of solids in said slurry (12); calculating the density of solids in said slurry from said slurry density and said solids concentration (20); and calculating said mineral waste content from said solids density (22). The present invention also provides an online analyser for mineral waste content of a slurry in a mineral separation process.

Apparatus and methods for the continuous measurement of specific gravity or density of solids in a fluid medium are disclosed. A system for continuous measurement of density of a flowing medium comprises a cartridge connected in series to an inflow pipe and an outflow pipe, a displacement sensing device adapted to monitor displacement changes of the cartridge when a medium flows through the cartridge, a base configured to provide a support for the displacement sensing device, a pressure sensor, a temperature sensor, and a processor configured to calculate density of the flowing media based on measured displacement change, temperature and pressure.

The invention relates to a method and apparatus for determining apparent density of a pervasive solid substance. A specific gravity bottle or Webster balance can be used for determining the density of insoluble solid, the density of soluble solid can be determined by utilizing a gas specific gravity method, but the requirement for the instrument manufacturing precision is high, and the economic performance and convenience are poor. The method is characterized in that solid fluid is adopted as a volume replacement medium; the volume of a to-be-detected substance is determined by utilizing a special volume determination apparatus; the mass of the to-be-detected substance is determined by utilizing an analytic balance; the determination of the apparent density is realized by virtue of calculation of a special formula. The apparatus consists of a lower bottle body, a middle bottle body, an upper bottle body, a measuring range tube and charged solid fluid. The apparatus is simple in structure, practical and economical; the solid fluid can be reutilized and is environment-friendly; the solid fluid is charged in one step, the to-be-detected substance is separated from the solid fluid by utilizing a fixed screen in the process for inverting the apparatus, and the operation is very convenient; the apparatus is suitable for determining the apparent density of all solid substances, and the difficulty for determining the apparent density of soluble or wettable solid substances with irregular shape can be solved.

The invention relates to a preparation process for improving the density of a solid electrolyte to enhance the conductivity of lithium ion. The main component of an additive is lithium aluminum silicate, and the content of the lithium aluminum silicate is 0.5-4 wt%. The preparation process comprises the following steps of: adding lithium aluminum silicate into presintered tantalum doped lithium lanthanum zirconium oxide, performing ball-milling, adding a binder for ball-milling again, performing tabletting, performing sintering at a low temperature to remove the binder, and performing burning in the mother powder to obtain a final electrolyte. The density of the obtained electrolyte sheet reaches 91.5%, and the lithium ion conductivity can reach 5.14*10<-4>S/cm (298K) at a normal temperature.

Systems and methods for gasifying a feedstock are provided. The method can include combining one or more feedstocks and one or more solid components in a treatment zone to provide a treated feedstock. At least a portion of the treated feedstock can be introduced to a reaction zone of a gasifier. The one or more solid components can have an average density and an average cross-sectional size that adjusts at least one of an average density of solids within a solids bed of the gasifier and an average cross-sectional size of the solids within the solids bed of the gasifier.

The invention discloses a measuring method for the heat flux density of a solid metal. The method comprises the following steps: (A) determining a heat conductivity coefficient 1 (W/m. DEG C) of a to-be-measured object; (B) processing measuring holes; (C) respectively installing temperature measuring devices in the measuring holes; (D) respectively measuring temperatures at a point A and a point B by using the temperature measuring devices respectively located at the point A and the point B so as to obtain the temperature TA of the point A and the temperature TB of the point B; and (E) calculating heat flux density of the to-be-measured object in the direction from point A and point B according to a formula. According to the invention, existence of the measuring holes poses little influence on a to-be-measured solid, heat flux density between measured points in a metal solid can be accurately measured in real time, and a measuring apparatus used in the invention has the advantages of a simple structure, easily realizable manufacturing process, a wide measurement range of heat flux density, capacity of realizing high precision measurement of heat flux density in a range of 1 kW/m<2> to 10 MW/m<2> , high stability, good anti-interference capability, etc.

The invention discloses a method for rapidly measuring the density of a solid insusceptible to absorbing water, comprising the following steps of: during the measurement of the density of the solid, firstly, enabling the temperature of deionized water in a container holding the deionized water to be consistent with the room temperature, measuring the temperature T of the deionized water by using a thermoelectric couple, transmitting the temperature T to a computer by using a temperature acquisition system, acquiring the density rho0 of the water by the computer, wherein the fluctuation of the temperature and the volume of the deionized water is avoided during the measurement; and secondly, sequentially measuring the mass M of the solid to be measured, the mass M1 of the container after a rustproof metal wire suspending mesh bag is immersed into the deionized water and the mass M2 of the container after the solid to be measured is immersed into the deionized water by adopting the rustproof metal wire suspending mesh bag through using an electronic balance, and directly obtaining the density rho of the solid after inputting to the computer . The invention has the advantages of instantaneousness, accuracy, standard and more reasonable operation process. By using the method, the densities of various solids insusceptible to absorbing water can be rapidly and conveniently measured.

The invention discloses a device for rapidly measuring the density of solid and liquid. The water pump is installed on the left side of the base, and the water pump is provided with a water pipe and an intermediate relay. The pneumatic device is installed in the middle of the base. The water pool and The measuring cylinder is installed on the right side of the abutment, and guide rails, item tables, liquid level sensors and drainage pipes are installed in the pool, a vacuum generator is arranged between the guide rails and the pneumatic device, and the end of the drainage pipe is connected to the measuring cylinder , the operating table is fixed on the side of the abutment, and operation buttons are arranged on the operating table. The object table of the device for quickly measuring solid-liquid density can be fixed to place solids and liquids, and calculate the density of the object through the volume difference between the volume of the object floating and completely immersed in the water discharged from the pool to the volume of the measuring cylinder, when the water in the pool is lower than the liquid level When the sensor is activated, the water pump draws water to the pool to ensure the next measurement.

Process for reducing the density of solid detergent ingredients by forming said ingredients into hollow-core particles. The density of ingredients such as sodium citrate, sodium carbonate and/or sodium silicate, when formed into such hollow-core particles, allows them to be stably incorporated into non-aqueous liquid laundry detergents.

The invention discloses a porosity measuring method, device, equipment and system. The porosity measuring method comprises the following steps: acquiring dry weight and volume of a to-be-measured object; obtaining the buoyancy weight of the to-be-measured object in the solid density meter after the to-be-measured object is fully infiltrated; obtaining the to-be-measured object by completely immersing the to-be-measured object in the infiltration type solution under a vacuumizing condition after the to-be-measured object is fully infiltrated, wherein the liquid in the solid density meter is the infiltration type solution, and the to-be-measured object is the same as the to-be-measured object in volume after the to-be-measured object is fully infiltrated; and determining the porosity of the to-be-measured object according to the dry weight, the buoyancy weight, the volume and the density of the infiltrating type solution at normal temperature. The to-be-measured object is completely immersed in the infiltration type solution and vacuumized, it can be guaranteed that the to-be-measured object is fully infiltrated, the speed of infiltrating the to-be-measured object can be increased, the fully infiltrated to-be-measured object is placed in the solid density meter to obtain the buoyancy weight, and the volume of the fully infiltrated to-be-measured object is the same as that of the to-be-measured object. The infiltrating type solution does not influence the volume of the object to be measured, so that the porosity measurement precision is ensured.

The invention provides a water-soluble organic salt weighting agent for drilling fluid for oilfields as well as a preparation method and application thereof. The method comprises the steps of preparing an organic acid mixture containing chlorine atoms, wherein the organic acid mixture comprises C1-C6 organic acids; adding composite alkali containing NaOH, KOH, ammonia water, N(CH3)3 and epoxy chloropropane to the organic acid mixture, stirring the materials to react, and evaporating water until the product is pasty or half-dry, wherein the mass ratio of composite alkali to organic acids is (0.2-2):1; drying the product at 80-120 DEG C for 6-24 hours, and grinding the dried product, thus obtaining the granular product. The weighting agent Weigh2 can not only improve the density of solid-free water-based drilling fluid base fluid but also improve the inhibitive capacity of the drilling fluid.

The invention relates to a portable specific gravity instrument based on air pressure measurement and a specific gravity measurement method. The portable specific gravity instrument comprises a firstsealed space, a second sealed space, a temperature sensor, a pressure sensor and a controller, wherein the first sealed space is used for placing a measured object, and the first sealed space is internally provided with a gravity sensor and an air release valve; the connection between the second sealed space and the first sealed space is controlled by an electromagnetic valve, and the second sealed space is internally provided with an air pump so as to inflate the second sealed space; the temperature sensor is arranged in the second sealed space and used for measuring the temperature before and after the pressure intensity changes; the pressure sensor is arranged in the second sealed space and used for measuring the pressure intensity; and the controller is used for controlling the measurement time sequence, receiving the temperature, pressure intensity and gravity data and processing the data. The portable specific gravity instrument completes the accurate measurement of the density of solid and liquid substances to the greatest extent through measuring the pressure intensity change in the same sealed container and calculating the relevant formula, and completes the energy-saving,environment-friendly and non-loss efficient measurement.

The invention provides a sustained-release agent for in-situ remediation of chlorohydrocarbon-contaminated groundwater in a deep mine. The sustained-release agent is prepared from, by weight, 10-40% of peroxide, 5-30% of iron tourmaline, 20-50% of persulfate, 1-5% of a surfactant and 5-20% of a binder. According to the provided sustained-release agent for the in-situ remediation of the chlorohydrocarbon-contaminated groundwater in the deep mine, the density of solid particles is large, the sustained-release agent can enter the bottom layer of underground contaminated water by using the sedimentation action of the gravity when injected into the groundwater in the deep mine, a double oxidation system is formed after the sustained-release agent is dissolved in the water, chlorohydrocarbon contaminants sunk at the water bottom are degraded, the degradation efficiency is obviously improved, and the pH value of an aqueous solution can also be adjusted, so that the aqueous solution tends to be neutral.

The invention discloses a method used for measuring the density of solid, comprising the steps as follows: the article is hung on a lever; the other force arm of the lever is acted on an electronic balance; the suspension point of the article is adjusted so as to lead the reading of the electronic balance to be 1; subsequently, the article is submerged in water; therefore, the obtained result is the ratio of the weight of the article in water and the weight of the article in air; the detection result is compared with the ratio of the weight of various materials in water and weight thereof in air calculated in advance, thus obtaining the density value of the article; as the weight of the article to be measured in air is not measured, the measurement is simpler; and a strain sensor is used for measuring the value by lever adjustment, thus having good linearity.

The invention relates to the field of environmental protection, and particularly discloses a solid waste screening and separating treatment system. The solid waste screening and separating treatment system comprises a plurality of separation tanks communicated in sequence, separating liquid is filled in each separating box, and the density of the separating liquid is reduced in sequence; the separating box comprises a box body, and the interior of the box body is divided into a sedimentation cavity and a material lifting cavity; a material stirring mechanism capable of ascending and descendingin the vertical direction is arranged in the sedimentation cavity, and the upper end of the material stirring mechanism is fixedly connected to an air pressure lifting device; and the outer end of afeeding hole is covered with a collecting cover, and the outer end of a discharging hole is in communication with a sealing cover matched with the collecting cover. According to the solid waste screening and separating treatment system, a plurality of separation tanks are arranged, separation liquid with different densities is filled in each separation tank, separation is carried out according tothe density of solid wastes, solid wastes with different densities are separated, and collection is facilitated, and manual sorting is not needed; the multiple separation boxes are in communication with each other, so that the separation treatment is continuously carried out, and the treatment efficiency is improved; the solid waste screening and separating treatment system can select different numbers according to the types of solid wastes, and is flexible to use and wide in application range.

The invention relates to a method for measuring the density of an object. The method comprises the following steps of preparing fine particles with uniform texture and a container with known mass (m)and volume (V1) in advance; firstly, filling the container with fine particles; weighing to obtain the total mass m1; obtaining the density rho particulate matters of the fine particulate matters according to the formula rho particulate matters = (m1-m)/v1, weighing and recording the mass m of the measured object; transferring part of fine particles out of the container for storage; reserving a small amount of fine particles at the bottom of the container; putting a solid substance to be measured into the container; and filling the container with the fine particles transferred from the container, weighing and recording the mass m2 of the remaining fine particles taken out from the container, calculating the volume of the remaining fine particles according to the equation v measured object=m2/rho particulate matters to obtain v measured object, and calculating the density of the measured object according to the v measured object. According to the invention, the volume and density measurement problem of the solid object with a complex shape is solved, and the measurement precision is relatively higher.

The invention provides a water-soluble organic salt weighting agent for drilling fluid for oilfields as well as a preparation method and application thereof. The method comprises the steps of preparing an organic acid mixture containing chlorine atoms and bromine atoms, wherein the organic acid mixture comprises C1-C6 organic acids; adding composite alkali containing NaOH, KOH, ammonia water, N(CH3)3 and epoxy chloropropane to the organic acid mixture, stirring the materials to react, and evaporating water until the product is pasty or half-dry, wherein the mass ratio of composite alkali to organic acids is (0.2-1.8):1; drying the product at 80-120 DEG C for 6-24 hours, and grinding the dried product, thus obtaining the granular product. The weighting agent Weigh3 can not only improve the density of solid-free water-based drilling fluid base fluid but also improve the inhibitive capacity of the drilling fluid.

The invention disclose water-base type printing ink for spray ink printing, which comprises the following components in percentage by weight: 3-5 percent of dye, 0.65-2 percent of surfactant, 0.2-2 percent of polymer, 0.5-0.8 percent of additive and the balance of solvent, and the sum of the mass percent of the components is 100 percent. The water-base type printing ink for spray ink printing has the advantages of good fluency, better storage stability, no sediment, high printing color density of solid color lump, bright color, high saturation, no corrosion for blocking a spray head, water resistance, low price, simple preparation method and no harm to human body because water accounts for 60 percent of the components of the printing ink. By adopting the water-base dye type printing ink for spray ink printing, printed pictures and characters are clear, and the phenomena of splashing and water bleeding staining can be avoided.