1585results about How to "Improve storage effect" patented technology

The invention relates ton a variable-distribution porous end mechanical sealing structure, comprising a movable ring and a stable ring which are mechanically sealed, to form an annular sealing end. One side of the sealing end is high pressure side as ascending, while another end is low pressure side as descending, at least one sealing end is disposed with porous structure in different sizes symmetry distributed on the sealed end. Compared with present screw or groove mechanical sealing structure, the invention has better pressure resistance, abrasion resistance and better dynamic pressure effect on fluid membrane, to improve the carrier ability of fluid membrane.

Suction is gathered up into a suction hole by arranging a driveable belt with small suction holes opened thereon in the suction nozzle, and output of the suction device can be largely reduced by reducing the suction air volume while maintaining strong suction force. A sucking place is also varied by moving the suction holes by driving the belt, and the whole air filter area is cleaned by performing sweeping operation on the air filter in response to operation of the suction nozzle.

Disclosed is a polycrystal high-nickel positive electrode material used for a lithium ion battery. The polycrystal high-nickel positive electrode material comprises a base material with a layered structure and a coating layer which is arranged outside the base material and has a spinel structure; the general formula of the base material is LiNi<1-x-y>Co<x>M<y>O<2>, wherein M is at least one kind of Mn and Al; the coating layer is lithium manganese oxide; the mass percentage of the total impurity lithium on the surface of the base material is less than 0.085% based on the total mass percentage of the base material; the preparation method for the positive electrode material comprises the following steps of weighing Ni<1-x-y>Co<x>M<y>(OH)<2>, and mixing with a lithium source, then carrying out thermal treatment, cooling, crushing and sieving to obtain the base material; measuring the content of the residual impurity Li<2>CO<3> and LiOH on the surface of the base material, adding into the metal Mn compound according to the measurement result, and carrying out low-temperature thermal treatment in an oxygen atmosphere to obtain the polycrystal high-nickel positive electrode material used for the lithium ion battery. The polycrystal high-nickel positive electrode material provided by the invention has the advantages of low material alkalinity, low inflatable degree, excellent processing property and cycling performance, and the like.

The present invention belongs to the field of adhesive technology, and provides one kind of starch-base timber adhesive with excellent water resistance and its preparation process and application. The starch-base timber adhesive with excellent water resistance has wide material source, no environmental pollution and high adhesion strength, and may be used widely in timber adhesion.

The invention discloses a polar monomer graft-modified amorphous poly-alpha-olefin and a preparation method thereof. The polar monomer graft-modified amorphous poly-alpha-olefin is prepared by carrying out grafting reaction on amorphous poly-alpha-olefin, a peroxide initiator, a polar monomer and an auxiliary grafting agent under molten or dissolved conditions. The polar monomer graft-modified amorphous poly-alpha-olefin is prepared from the following raw materials: 100 parts of amorphous poly-alpha-olefin, peroxide initiator accounting for 0.1-1 wt% of the amorphous poly-alpha-olefin, polar monomer accounting for 0.5-10 wt% of the amorphous poly-alpha-olefin, auxiliary grafting agent accounting for 0.1-5 wt% of the amorphous poly-alpha-olefin, solvent accounting for 0-300 wt% of the amorphous poly-alpha-olefin, and antioxidant accounting for 0.05-2 wt% of the amorphous poly-alpha-olefin. The amorphous poly-alpha-olefin has the characteristics of high grafting ratio, light color, high polarity, favorable flowability, favorable storage capability and no risk in moisture crosslinking.

The present invention discloses a filling device and filling process, wherein the filling device includes: a deep cone thickener used for storing and concentrating tailing paste; a cementing material storehouse used for store cementing material; a stirring device used to receive concentrated tailing paste and cementing material from the deep cone thickener and the cementing material storehouse to mix them and stir to obtain filling paste; and a conveyer used for receiving filling paste from the stirring device and conveying the filling paste to mine goaf. By using deep cone thickener, the filling device through the invention has better concentrating efficiency, higher concentrating degree without using a filter for moisture abstraction operation to concentrated tail paste, hence the device is simple and cost low.

The invention discloses an ion liquid electrolytic solution and a secondary lithium battery containing the electrolytic solution. The ion liquid electrolytic solution is characterized in that a lithium secondary battery non-water electrolytic solution comprises an ion liquid containing electrolyte salt and a nitrile group functional group, a hydrogen fluorine ether, a non-water organic solvent and an addition agent; the ion liquid of the nitrile group functional group used by the electrolytic solution is beneficial to improving the security of the lithium secondary battery, the content of the ion liquid is more than 40%, and the electrolytic solution has the obvious flame retardant effect; the hydrogen fluorine ether is contributed to improving the wettability of the electrolytic solution containing the ion liquid on an electrode material and a diaphragm, and meanwhile, electrochemistry properties such as a cycle property, a high temperature keeping property of the lithium secondary battery are obviously improved; and an electrolytic solution system uses the ion liquid of the nitrile group functional group and the hydrogen fluorine ether in a composite manner, the combination properties such as the cycle property, the safety property and high temperature characteristics of the lithium secondary battery are obviously improved.

The invention discloses a refrigerator with a humidity chamber. The refrigerator with the humidity chamber comprises a box body; a refrigerating chamber and a freezing chamber are arranged at intervals in the box body; the humidity chamber, which is of a sealing structure relative to the refrigerating chamber, is arranged in the refrigerating chamber; the humidity chamber can adjust the humidity according to different demands, so as to form a drying chamber with the drying function or a humidity maintaining chamber with the humidity maintaining function; the drying chamber and the humidity maintaining chamber can be switched; when drying, the humidity chamber is in air communication with the freezing chamber, and thus the humidity chamber serves as the drying chamber with the drying function; when maintaining the humidity, the humidity chamber serves as the humidity maintaining chamber with the humidity maintaining function. With the adoption of the refrigerator with the humidity chamber, the humidity maintaining environment is provided for keeping foods like vegetables and fruits fresh and storing the foods; in addition, the low-humidity drying environment which is beneficial for the storage of tea, cigarette and other dry goods can also be provided, and as a result, the active demand of a consumer can be met.

The invention discloses a lithium ion battery composite negative electrode material and a preparation method thereof. The surface of nanometer silicon is subjected to oxidization treatment to obtain nanometer silicon coated with silicon dioxide on the surface; the nanometer silicon coated with silicon dioxide on the surface is mixed with a lithium source uniformly to obtain a precursor; and the obtained precursor is placed into inert gas to be heated to obtain a nanometer silicon material coated with lithium silicate, and the product is subjected to washing, centrifugal separating and drying to obtain the lithium ion battery composite negative electrode material. By taking a uniform primary oxide layer on the surface of the nanometer silicon material as the substrate, an in-situ chemical reaction is performed to realize uniform coating of lithium silicate, so that stability between nanometer silicon and air or an electrolyte interface is improved effectively, thereby greatly improvingelectrochemical performance of the nanometer silicon material.

The invention discloses heat-conducting flame-retardant room temperature vulcanized silicone rubber. The silicone rubber consists of the following components in parts by weight: 100 parts of alpha, omega-triethoxy polydimethylsiloxane, 400-1500 parts of an inorganic heat conducting filler, 0.5-5 parts of a filler treating agent, 1-10 parts of titanium dioxide prepared by a vapor phase method, 0.5-15 parts of a cross-linking agent, 0.1-5 parts of a flame-retardant agent, 0-10 parts of a catalyst and 0-5 parts of a silane coupling agent. The silicone rubber and the preparation method use the alpha, omega-triethoxy polydimethylsiloxane so as to improve the processing property and the storing property of a composition system. Compared with the prior art, through the use of the silicone rubber and the preparation method, the compatibility, the storing property and the extrudability of the filler and the silicon rubber are improved, the flame retardance in a UL94-V0 level is realized, and the situation that because a large amount of the inorganic flame-retardant filler is used, the heat-conducting property of the system is influenced is avoided; silicon dioxide prepared by a vapor phase method is added, the thixotropy of the composition is regulated, and besides the heat-conducting property is not influenced; the silicone rubber has good system compatibility, a good regulable heat-conducting property and a good flame-retardant property and can be suitable for a glue point asking for a high heat dissipation property and a high flame-retardant property.

The invention discloses a preparation method of a lithium ion battery anode material. The method is characterized in that the outer surface of the existing lithium ion battery anode material is sequentially coated with an aluminum oxide layer and a carbon layer, wherein the coating condition is liquid-phase coating, in the coating process of the aluminum oxide, the addition sequence of the existing lithium ion battery anode material and aluminum salt is adjusted, and the coating substance organic aluminum salt is added under the continuously stirring condition, so that a hydrolytic product is uniformly adsorbed onto the surface of an active substance. The carbon coating is carried out through a spray drying and rapid sintering way in the inert gas atmosphere, so that the problems that the metal is reduced due to the high-temperature carbon coating and the organic carbon source is difficultly carbonized in low temperature can be avoided. The invention also discloses a lithium ion battery anode material prepared through the method. The energy density and power density of the battery can be remarkably improved, and the cycling performance, the capacity retention rate and the safety performance of the battery can be improved.

The invention provides a partition refrigeration control method and a partition refrigeration control device of a refrigerator refrigerating chamber. The refrigerator refrigerating chamber is divided into a plurality of storage spaces, and volume detection devices for sensing using volumes in the storage spaces respectively are arranged in the refrigerating chamber; and a refrigerator is provided with a branching air supply device. The partition refrigeration control method comprises the steps that the volume detection devices are utilized for detecting the using volumes of the storage spaces; according to the using volume of each storage space; rapid refrigeration running time needed by each storage space is determined according to the using volume of each storage space; a cold source is driven to run in a rapid refrigeration manner; and according to the rapid refrigeration running time, a refrigeration state mark of each storage space is set, and the branching air supply device is driven to run to the refrigeration state mark so as to provide the refrigerating air flow state for the started storage space. By means of the scheme, electric energy waste is avoided, and the storage effect of the refrigerator refrigerating chamber is improved.

An adjustable steering column for a steer-by-wire steering device may include an actuating unit that comprises a steering spindle mounted rotatably about a longitudinal axis in a casing unit. The casing unit may have a first casing tube in which a second casing tube is arranged in a rotationally fixed manner with respect to the longitudinal axis and is mounted so as to be movable axially in a telescopic fashion. An actuating drive is connected to the first casing tube and the second casing tube and can move the second casing tube relative to the first casing tube. The actuating drive may comprise a spindle drive with a threaded spindle that is parallel to the longitudinal axis, rotatably drivable by a servomotor, supported on and extending within the first casing tube, and screwed into a spindle nut attached in a rotationally fixed manner to the second casing tube.

The invention provides a preparation method of a lithium ion battery cathode material. The prepared lithium ion battery cathode material has good pseudo-single crystal form by utilizing pressure-boiling crystal at certain temperature. The preparation method is simple in technology and easy in control. The general formula of the lithium ion battery cathode material prepared by the preparation method is expressed as Li (NixCo1-x-yMny) O2, wherein x is more than or equal to 0.34 and is less than or equal to 0.68, y is more than or equal to 0.15 and is less than or equal to 0.31, x +y is more than 0 and is less than 1. The invention also provides a lithium ion battery containing the lithium ion battery cathode material.

The invention belongs to the field of inorganic nonmetallic materials and relates to a surface modification technology of a cathode material for a lithium ion battery. The surface modification technology comprises the following steps: the cathode material for the lithium ion battery, mainly including ternary materials of lithium cobalt oxide, lithium manganese oxide, lithium nickel-cobalt-manganese oxide, nickel and cobalt aluminate, layered rich lithium high manganese and other solid solution materials, is sintered at a high temperature, and put into an organic solvent to be fully stirred; then a solid-liquid mixture is filtered; a filter cake is heated to obtain a final product. The surface modification technology of the anode material for the lithium ion battery has the benefits that through the cathode material for the lithium ion battery modified by the surface modification technology, the pH value and the impurity lithium content of the material can be effectively reduced, and the high temperature cycle and the storage performance of the material can be improved, so that the material has excellent cycle performance and high-temperature performance; the surface modification technology can be widely used in the cathode material for the lithium ion battery and particularly is applied to a power type lithium ion battery.

The invention provides an electromagnetic shielding film and a preparation method thereof. The electromagnetic shielding film provided by the invention comprises a carrier layer, a release layer, an insulation layer, a metal layer, a conduction adhesive layer and a protective film layer, which are in contact in sequence, wherein the metal layer comprises a metal bottom layer, a metal function layer and a metal protection layer that are in contact with one another in sequence; the metal bottom layer is in contact with the insulation layer; the metal protection layer is in contact with the conduction adhesive layer; and the metal function layer is formed by one or more of copper, aluminum, silver and tin. The electromagnetic shielding film provided by the invention has an excellent shielding effect for an ultrahigh frequency electromagnetic signal and has high reliability and heat resistance, high temperature resistance tin drift can be realized, the fatal problems of plate cracking and the like are not caused, and the flexibility of the electromagnetic shielding film is comparatively high; in addition, the electromagnetic shielding film provided by the invention is high in storage performance and can be stored at normal temperature, and the storage period can reach above 6 months.

An ordinary-temp biologic antistaling agent for green tea is prepared from chitosan, green tea extract and VC in the weight ratio of (2.0-3.5): (0.5-0.9): (0.1-0.4). It is applied through dissolving it in cooled boiled water or distilled water and spraying it onto green tea.

The invention relates to a method for preparing microencapsulation glucose oxidase, which belongs to the technical field of food processing. The invention aims at improving the quality of flour to researche a method for preparing new flour modifying agent, namely, the microencapsulation glucose oxidase, chitose-calcium alginate-glucose oxidase microcapsule which is obtained through the method is copolymer hydrogel which is obtained through double cross-linking, both amidogen and carboxyl group are fixed, and the whole system is a reticular formation. The method controls the catalytic speed of the microencapsulation glucose oxidase through adjusting the molecular weight and the degree of deacetylation of microcapsule exine chitose, thereby the method is beneficial for oxidation-linking of gluten protein and for increasing the quality of the flour and flour products, simultaneously, the glucose oxidase after microencapsulation avoids the contact between enzyme and the flour and improves storage and the stability, and the microencapsulation glucose oxidase is excellent flour modifying agent and accords with practical production and application. The process of the method is simple, safe and convenient, and accords with the requirements of environmental protection and utility.

The invention discloses a dragon fruit jam and a preparation method thereof. The dragon fruit jam is prepared from the following materials in parts by weight: 100 parts of dragon fruit with peel, 60-65 parts of water, 5-15 parts of a sweetening agent, and 0.3-0.7 parts of a thickening agent. The preparation method comprises the following steps: removing thorns from the dragon fruit with peel, cleaning, slicing, grinding and stirring the dragon fruit to obtain dragon fruit pulp, completely dissolving the sweetening agent and the thickening agent, adding the dragon fruit pulp, uniformly stirring the pulp, conducting high temperature instant sterilization, cooling the sterilized pulp, then conducting fermentation treatment, and conducting microwave concentration, filling and ultrahigh pressure sterilization so as to obtain the dragon fruit jam. The dragon fruit jam disclosed by the invention is of a natural edible value and a natural medicinal value of the dragon fruit, is low in sugar content, and can keep the natural nutrition and the flavor in the raw material well by the adoption of the microwave concentration technology and the ultrahigh pressure technology.

The invention provides a refrigerator temperature control method based on food materials and a computer storage medium. The refrigerator temperature control method based on the food materials comprises the steps that after placement of the food materials is detected, the priority distribution mode of the placed food materials is obtained; whether the priority distribution mode of the placed food materials is a weight priority mode or not is judged; if yes, when the obtained weight of the placed food materials is larger than the obtained maximum weight of original food materials in a storage chamber where the placed food materials are located, the target temperature of the storage chamber where the placed food materials are located is determined at least according to the optimal storage temperature, and if not, when the obtained priority of the chamber of the placed food materials is the same as the chamber priority of the storage chamber where the placed food materials are located, a refrigerator automatically enters a weight priority mode; and a refrigeration system is driven to work according to the target temperature. According to the scheme, the temperature of the storage chamber can be more suitable for storage of the food materials, the operation of the user is reduced, the time and the energy of the user are saved, and the use experience is improved.

A two-photon recording method is provided and includes: a first step of effecting two-photon absorption to form a latent image in a two-photon absorption recording material; a second step of subjecting the two-photon absorption recording material to heat treatment by which refractive index, absorptivity or luminescence intensity is modulated according to the latent image to effect recording; and a third step of irradiating the two-photon absorption recording material thus heat-treated with light on the entire surface thereof to fix the recording thus formed. The recording can be reproduced without being erased.

The invention discloses a masking tape containing a printing layer and a preparation method thereof. The masking tape comprises a substrate, wherein one side of the substrate is provided with an adhesive layer, and the other side of the substrate is sequentially provided with a printing layer and a release layer; the substrate is masking tape base paper impregnated by a hydroxy butadiene-styrene emulsion; the printing layer is a water-based ink; the adhesive layer is a water-based acrylate pressure-sensitive adhesive; and the release layer is a water-based release agent. All the raw materials are water-based materials, and thus, the production technique is environment-friendly; and the product has the advantages of stable performance, long shelf life, low production cost and high added value.