18results about How to "Solve liquidity problems" patented technology

The invention relates to the technical field of composite materials, in particular to a long glass fiber reinforced plastic preparation process autonomous regulation and control method based on image vision, which comprises the following steps: judging the color difference interval of glass fiber and a standard sample, and judging whether floating fiber exists in colloidal particles or not according to the color difference interval; judging whether the floating fiber condition is in a first floating fiber degree or a second floating fiber degree according to the floating fiber ratio; in the first fiber floating degree, judging that the fiber floating reason is insufficient and non-uniform impregnation according to the diameter difference between the material diameters; judging whether the equipment parameters are in a preset range, and adjusting the equipment parameters; in the second floating fiber degree, the deviation condition is judged according to the diameter difference value of the materials; and judging whether the offset degree is a first category or a second category according to the offset, analyzing the offset trend, and adjusting the proportion or traction force of the polypropylene resin. By performing image view analysis on the colloidal particles prepared from the long glass fiber reinforced plastic, the reason of fiber floating is judged, and the preparation process is correspondingly regulated and controlled.

The embodiment of the invention discloses a residual current monitoring method and device. The method comprises the following steps: acquiring current data of a to-be-monitored area; according to the difference between the current data and a first preset condition, determining an abnormal current and marking a first moment of the abnormal current; according to the first moment, determining a first preset time period after the first moment and a second preset time period before the first moment; according to the abnormal current, determining a current change value of the abnormal current and a first weight value corresponding to the current type of the abnormal current in a first preset time period; acquiring historical current data in a second preset time period, and determining a second weight value of the historical current data; and determining a current variation value according to the current variation value, the first weight value and the second weight value, and predicting the residual current level of the to-be-monitored area according to the current variation value. According to the scheme, the real-time evaluation of the safety of the power system is realized, and the problem that the traditional monitoring technology cannot capture the dynamic change of the current in time is solved.

The invention discloses a leakproof composite phase change material and application of the leakproof composite phase change material in wide temperature range operation of a lithium battery, and belongs to the technical field of battery thermal management. Boron nitride nanosheet modified ceramic fibers are used as an internal supporting framework to enhance thermal conductivity and provide capillary constraint, and a core material is a phase change medium such as paraffin or n-octadecane; the invention further discloses a preparation method of the composite material and application of the composite material in lithium battery thermal management, the composite material solves the problems that a traditional phase change material is prone to leakage, poor in heat conduction and single in function, the battery can be rapidly heated at low temperature, heat can be efficiently absorbed and diffused at high temperature / normal temperature and high rate, and the service life of the battery is prolonged. The safe, efficient and stable operation of the lithium battery in a wide temperature range is realized, the leak-proof performance is high, the cycling stability is good, the preparation cost is controllable, and the application prospect is wide.

The utility model provides a fuel cell runner structure which comprises a plurality of runner bodies arranged in parallel, and a runner ridge is arranged between every two adjacent runner bodies; each runner ridge at least comprises a first runner ridge and a second runner ridge which are integrally arranged; the first runner ridge is arranged close to an inlet of the runner body; an included angle formed by the intersection of the first runner ridge and the second runner ridge on the same runner ridge is an obtuse angle; at least one first notch is formed in each first runner ridge; at least one second notch is formed in each second runner ridge; and the first notches and the second notches are communicated with the adjacent runner bodies. The first notches and the second notches are formed in the runner ridge, so that cooling liquid can be more uniformly distributed in the runner body, the flow distribution is uniform, each polar plate can be ensured to be good in heat dissipation, and the purpose of effectively cooling the fuel cell stack is achieved.

The application discloses a salt-resistant water-non-dispersible material for oil well cement and a preparation method thereof. The salt-resistant water-non-dispersible material for oil well cement comprises the following components in the form of weight parts: 100 parts of N,N-dimethyl acrylamide, 3-6 parts of acrylic acid, 10-20 parts of 2-acrylamide-2-methylpropanesulfonic acid, 5-15 parts of a cyclic monomer, 0.1-0.4 parts of a branching agent, 5-15 parts of a cationic monomer, 0.3-3 parts of a crosslinking agent and 400-500 parts of water. The salt-resistant water-non-dispersible material prepared by the application has good salt resistance, can significantly improve the anti-dispersion performance of the cement slurry when used in a salt water and sea water cement slurry system with a NaCl content of 18 wt% or less, and has excellent rheological performance.

The invention discloses a method for forging a lower fork arm of a front shock absorber for an automobile air suspension, which comprises the following steps of: carrying out roll forging on an initial blank by adopting a roll forging machine to obtain a roll forging blank; pre-forging to obtain a pre-forged blank; reheating to the temperature of 480 to 520 DEG C; a die forging machine is adopted for conducting finish forging on the prefabricated blank, and a finish forging blank is obtained; sequentially carrying out water cooling, corrosive washing, acid pickling and shot blasting treatment on the final forging blank to obtain a forging with work hardening and residual stress on the surface; wherein in the pre-forging process and the finish-forging process, the temperature of a pre-forging die is the same as that of a finish-forging blank; the invention further discloses a device for forging the lower fork arm of the front shock absorber for the automobile air suspension. According to the invention, the automatic adjustment of the height and the angle during reciprocating heating and multi-stage forging of the blank among the roll forging machine, the pre-forging die, the heating furnace and the finish forging die is realized, the operation steps of multi-time isothermal forging are simplified, the operation steps are simple, and the metal flowability during forging and the simplicity of the forging steps are both considered.

This application discloses a vibration damping device for spinning drums in textile machinery, relating to the field of vibration damping technology in spinning machinery. The device includes a rod sleeve, lubricating oil, a threaded rod, a threaded rod buffer tube, a vibration damping spring assembly, and an oil lifting assembly. The vibration damping spring assembly adopts a variable pitch hollow spring body structure with a denser upper section and a sparser lower section. It has multiple oil control sections evenly arranged along the spiral direction of the variable pitch spring body. Each oil control section has an oil inlet hole and a movable membrane fixed outside the oil inlet hole. The movable membrane uses magnetic attraction to open and close the oil inlet hole and adjust the actual opening area of ​​the oil inlet hole during rebound, achieving real-time adaptive control of the oil flow. This enables improved response speed for adaptive oil flow control, enhanced vibration damping consistency due to temperature adaptation, strengthened damping effect for unidirectional flow, effective suppression of simple harmonic motion to improve equipment stability, and optimized cooling efficiency to extend service life.

The invention relates to the technical field of concrete, and particularly discloses a cement-based reinforcing thickener for dry-mixed mortar. The cement-based reinforced thickening agent for the dry-mixed mortar is prepared from the following raw materials in percentage by mass: 60 to 75 percent of Portland cement, 15 to 25 percent of fine aggregate, 5 to 10 percent of composite thickening agent, 3 to 4 percent of composite fiber and 1 to 2 percent of retarder, the composite thickening agent comprises a polycarboxylic acid type water reducing agent and modified cellulose ether, and the mass ratio of the polycarboxylic acid type water reducing agent to the modified cellulose ether is (1-1.5): 2. The cement-based reinforcing thickening agent for the dry-mixed mortar has the advantage of realizing collaborative optimization of multiple functions such as water reduction and reinforcement, thickening and water retention, crack resistance and shrinkage resistance in the dry-mixed mortar.

The invention discloses an on-site mixed emulsion explosive for an underground mine upward hole and a preparation method of the on-site mixed emulsion explosive. The emulsion explosive comprises nitric acid, sodium nitrate or urea, water, a compound oil phase, a sensitizer, an accelerant, modified chitosan and sodium carboxymethyl cellulose. The preparation method of the emulsion explosive comprises the following steps: S1, uniformly mixing ammonium nitrate, sodium nitrate, water and a compound oil phase, and emulsifying to obtain an emulsion matrix; s2, preparation of sensitizer liquid: S21, mixing sodium nitrite with water to obtain a first mixed solution; s22, uniformly mixing the modified chitosan with the first mixed solution to obtain a second mixed solution; s23, uniformly mixing sodium carboxymethyl cellulose with the second mixed solution to obtain a sensitizer solution; and S3, separately conveying the accelerant liquid and the sensitizer liquid, and mixing the accelerant liquid and the sensitizer liquid with the emulsion matrix to prepare the emulsion explosive. According to the invention, the problem that the produced emulsion matrix is high in viscosity and difficult to convey due to the pursuit of high viscosity of the on-site mixed emulsion explosive in the use process is solved.

The utility model discloses a lithium battery module liquid temperature control device and a lithium battery cabinet, the lithium battery module liquid temperature control device comprises a liquid inlet pipe, a battery cell module and an oil storage tank, and the battery cell module comprises a battery cell cabin and a transfer cabin which are communicated with each other; the battery cell module is arranged above the oil storage tank, the oil storage tank is communicated with a battery cell cabin of the battery cell module from bottom to top through a liquid inlet pipe, and a transfer cabin of the battery cell module is communicated with the oil storage tank from top to bottom through a reflux inlet; liquid in the oil storage tank sequentially flows to the battery cell cabin and the transfer cabin and then flows to the oil storage tank from top to bottom through the reflux inlet; and the priority of the liquid in the battery cell cabin passing through the liquid drainage port is greater than the priority of the liquid passing through the overflow dam port. According to the lithium ion battery module, the flowing efficiency of the liquid can be improved, reasonable flowing of the liquid required by cell temperature control can be independently completed in one lithium battery module, forward circulation or reverse circulation of the liquid can be completed, and then the spontaneous combustion risk of the lithium ion battery is remarkably reduced.

The present invention relates to the technical field of production process of traditional Chinese medicine composition, and discloses a stomach-relieving and analgesic composition capsule and a large-scale preparation method thereof, wherein the medicinal raw materials include 80-120 parts of coptis root, 50-70 parts of amomum villosum, 80-120 parts of bupleurum, 80-120 parts of dandelion, 80-120 parts of corydalis, 40-60 parts of evodia rutaecarpa, 80-120 parts of rhubarb, 80-120 parts of costusroot and 25-35 parts of clove. The present invention adopts acidic conditions percolation extraction, cyclodextrin inclusion of volatile oil, alkali precipitation and filtrate drying in sequence, and fills the capsules after mixing the inclusion compound and powder. In the whole process, no large-scale energy consumption is required, which reduces the production cost and greatly improves the production efficiency; it also solves the technical problems of low yield of berberine in the existing extraction of coptis root, and reducing the berberine content in the product and the utilization rate of coptis root due to the compatibility reaction of berberine with other components, effectively improving the content of berberine in the medicine, and improving the quality and efficacy of the medicine.

The invention relates to the technical field of tin wire welding of photovoltaic junction boxes, and discloses a special tin wire for a photovoltaic junction box and a manufacturing process of the special tin wire. The alloy layer comprises tin, lead, aluminum, antimony, arsenic, bismuth, copper, iron, zinc, cadmium and sulfur; the soldering flux layer is composed of rosin, tetrahydrofurfuryl alcohol, propylene glycol monomethyl ether, succinic acid, glutaric acid, dibromo butylene glycol, dimethylamine hydrochloride and a fluorocarbon surfactant; the softening agent is added into the raw materials in the soldering flux layer, the viscosity of the soldering flux layer is increased, the tin wire composed of the soldering flux layer and the alloy layer can be well attached to a welding spot after welding, residues of the tin wire after welding are transparent, the tin wire is not brittle, not prone to powdering and not sticky, the problem that production lines and products are polluted by rosin after welding is solved, meanwhile, the activity of the tin wire is excellent, and the service life of the tin wire is prolonged. According to the tin wire, the different proportions of the softening agent in the soldering flux layer are changed, so that the manufactured tin wire can be suitable for different temperature conditions.

A sludge drying system with steam fluidization heating comprises a bubbling bed sludge dryer, a cyclone purifier and a steam regenerator connected in sequence, wherein the bubbling bed sludge dryer is divided into at least two spaces connected at the top from the inlet to the outlet, and an air distribution chamber is arranged below each space, and the slag discharge pipe of the cyclone purifier is inserted below the bed material layer of the first space, and the steam regenerator comprises a main working room, a drain tank and an auxiliary water tank, wherein the drain tank and the auxiliary water tank are located on both sides of the main working room, and a plurality of heat exchange surfaces are arranged from top to bottom in the main working room, and the main working room is connected to each air distribution chamber through a pipeline. The present invention effectively solves the problems of flow, heating and drying of garbage, sludge and other materials with high humidity, strong viscosity and difficult flow, and has the advantages of simple system, high heat exchange coefficient, high material drying degree and low equipment energy consumption, thus creating favorable conditions for further resource utilization of garbage and sludge.

The present invention relates to the technical field of composite materials, and in particular to an autonomous control method for the preparation process of long glass fiber reinforced plastics based on image vision, including judging the color difference interval of glass fiber and standard sample, judging whether there is floating fiber in the colloid according to the color difference interval; judging whether the floating fiber situation is at the first floating fiber level or the second floating fiber level according to the floating fiber ratio; when the first floating fiber level is reached, judging the cause of the floating fiber as insufficient and uneven impregnation according to the diameter difference between the material diameters; judging whether the equipment parameters are within a preset range and adjusting the equipment parameters; when the second floating fiber level is reached, judging the offset according to the diameter difference of the material; judging the offset degree as the first category or the second category according to the offset amount, analyzing the offset trend, and adjusting the ratio or traction strength of the polypropylene resin. The present invention judges the cause of the floating fiber and controls the preparation process accordingly by performing image view analysis on the colloid prepared by long glass fiber reinforced plastics.

This utility model discloses an improved iron separator device in the field of chemical equipment technology, including a housing; a housing cover that fits over the top opening of the housing; multiple magnetic rods arranged in a staggered pattern along the material flow direction inside the housing, with the upper end of each magnetic rod rotatably mounted on the housing cover and the lower end suspended inside the housing; an adjusting frame spanning the upper end of the housing cover and connected to the upper end of each magnetic rod for synchronously driving the multiple magnetic rods to rotate around its axis, thereby switching the material-facing side and the material-repelling side of the magnetic rods; and multiple guide plates, each fixedly positioned downstream of each magnetic rod, with the guide plates having a V-shaped structure. This device achieves periodic switching between the material-facing and material-repelling sides of the magnetic rods by rotating the magnetic rods with the adjusting frame, ensuring that all surfaces of the magnetic rods participate uniformly in the adsorption process. The use of a multi-row staggered magnetic rod array, with a corresponding V-shaped guide plate behind each magnetic rod, synergistically enhances the adsorption effect.

This invention discloses a recycled polyamide composition for replacing steel with plastic and its preparation method. The composition is prepared from the following components in parts by weight: 21.2-23.1 parts recycled polyamide resin, 75 parts reinforcing agent, 0.2-0.3 parts antioxidant, 0.5-1 part lubricant, 1-2 parts organic black masterbatch, and 0.2-0.5 parts flowability improver. The polyamide composition of this invention uses recycled polyamide resin as the main raw material, which is modified with a flowability improver and an organic black masterbatch, and reinforced with glass fiber. The addition of the flowability improver and organic black masterbatch lowers the crystallization temperature of the polyamide material, improves the material's flowability, and solves the problems of appearance and flowability of highly glass fiber reinforced recycled polyamide materials.

The invention relates to an amorphous NADP solvate and a preparation method thereof. The amorphous NADP solvate disclosed by the invention is an NADP diethanol solvate or an NADP diisopropanol solvate. The preparation method comprises the following steps: adding an NADP aqueous solution with specific concentration and pH into an alcohol solvent with specific temperature, stirring, crystallizing, carrying out suction filtration, and carrying out vacuum drying to obtain the amorphous NADP solvate. The amorphous NADP solvate disclosed by the invention solves the problems of stability and fluidity, and meanwhile, the method is simple to operate, the process is easy to control, and the method is suitable for industrialization.

This invention discloses a low-shrinkage, high-strength fluidized solidified soil for solidified clay. The raw materials include: a curing agent, an activator, waste mud, pre-wetted lightweight aggregate, and water. The curing agent has a mass fraction of 5-20%, the activator has a mass fraction of 0.6%-1.8%, and the mass ratio of waste mud to pre-wetted lightweight aggregate and water is 5-7:3-5:2.5-4.5. The pre-wetted lightweight aggregate is a pre-wetted spherical porous lightweight aggregate, comprising: 10%-30% Bayer red mud, 30%-50% fly ash, 10% metakaolin, 15% quartz powder, 10% guiguang talc, and 1.5%-3% pore-forming agent. This invention utilizes the internal curing effect of the pre-wetted lightweight aggregate to solve the fluidity problem of fluidized solidified soil under low water-to-solid ratio conditions. Combined with a lower water-to-solid ratio to reduce drying shrinkage and the arching effect of the spherical lightweight aggregate to improve strength, it achieves the goal of preparing low-shrinkage, high-strength, crack-resistant fluidized solidified soil.