275results about How to "No change in performance" patented technology

The invention discloses a common low-carbon steel anti-oxidizing paint under high temperature, which comprises the following steps: grinding ore powder with Al2O3, SiO2, Fe2O3, metallurgical waste, reducer with carbon and inorganic binder to below 100 orders separately; blending evenly; stirring the powder with water evenly; adjusting the quantity of added water to the density of paint slurry to 1100-1500kg/m3; spraying the steel blank (below 1000 deg. c) before heat by rolling furnace directly; forming continuous protective layer to avoid oxidizing and damaging in the soaking course; saving the cost.

The invention relates to a preparation process of continuous casting slab high-temperature oxidation resistant coatings, which is characterized in that less than 120 meshes of powder, reductant containing carbon, inorganic binders, surfactants, suspending agents and the like with the compositions such as 25-55 wt% SiO2, 10-20 wt% Al203, 11-23 wt% MgO and the like are respectively grinded and mixed evenly, then water is used to be mixed and stirred sufficiently evenly, and finally the density of the coatings are adjusted within 1200-1500 kg/m3. The coatings can not only be sprayed onto continuous casting slabs at normal temperature, but also be sprayed onto high-temperature casting slabs, form continuous whole protective coating layers under the action of high temperature, effectively reduce temperature drop of the casting slabs and oxidation burning loss in even heating process of a heating furnace without changing original performance of matrixes, and effectively decrease dilution of alloying elements on the surfaces of the casting slabs. After the casting slabs are out of the heating furnace, natural spalling capability of the coating layers is strong, and oxidation matrixes of the casting slabs are smooth. Raw materials of the oxidation resistant coatings are easy to be obtained, and the coatings have low cost and simple preparation process and are adaptable to oxidation resistance for various steels when being heated at 700-1300 DEG C/ 2-8 hours.

The invention discloses a mint-releasing cigarette filter tip and a production technique thereof, relating to a cigarette filter tip and the production technique thereof. The mint-releasing cigarette filter tip contains tow material in which cotton thread infused with mint essence solution is wrapped; film-forming material solution is adsorbed at the outer layer of the cotton thread infused with mint essence solution; mint essence is added in the film-forming material solution; and the film-forming material includes natural macromolecular material and synthetic macromolecular material. The mint-releasing cigarette filter tip has the advantages that: 1, adopting membrane technology, mint is low in volatility at room temperature, so the mint can be effectively released when taking the cigarette;2, the production technique is simple; 3, the mint-releasing cigarette filter tip is not changed in performance; 4, the mint-releasing cigarette filter tip can be preserved for more than one year at room temperature; 5, the mint-releasing cigarette filter tip is low in cost.

The invention provides a self-adhesive polymer modified bituminous polyester fiber waterproof sheet material and preparation technology thereof. The waterproof sheet material comprises polyester cloths, an immersion oil coating layer and a film-mulching layer. The immersion oil comprises the following materials in parts by mass: 37-47 parts of bitumen, 8-18 parts of machine oil, 5-10 parts of SBSrubber, 2-12 parts of SBR rubber, 2-12 parts of EPDM rubber powder, 2-7 parts of butyl rubber powder, 25-35 parts of talc powder and 1-10 parts of petroleum resins. The bitumen is 90# one. The invention has the effects as follows: the waterproof sheet material uses the EPDM modified bitumen as the base material and polyester cloths as the matrices; the back of the adhesive side is covered by the reinforced self-adhesive waterproof sheet material of abherent, thus achieving the effect of sticking while adhering and improving the construction efficiency; the waterproof sheet material is characterized by solvent-free construction, safety and no scald; the waterproof sheet material has shining surface and good elasticity, and the properties of the waterproof sheet material are not obviously changed after aging through laboratory test.

The invention discloses a transparent flexible electrochemical device based on a planar comb-shaped electrode structure, and a preparation method thereof. The planar electrode includes an anode and an A electrode (that is, a cathode or a counter electrode) arranged on the same transparent flexible substrate. Each of the anode and the A electrode includes a collection electrode and comb-shaped electrodes arrayed in parallel on the collection electrode. The comb-shaped electrodes of the anode and the A electrode are arrayed alternatively. The teeth widths in the comb-shaped electrodes and distances between adjacent teeth in the comb-shaped electrodes which are arranged alternatively are all between 10 micrometers and 100 micrometers. The planar comb-shaped structure is widely applicable to the field of electrochemical devices and the field of transparent flexible electronic products.

The related digital copyright management method based on flow media technology enciphers the menu played as flow media, and the client can obtain deciphering key from server after success identification to decipher data and obtain the normal video data. This invention is benefit to provide more safe ordering service in network by the provider.

The invention discloses a preparation method for wear-resistant steel and carbon structural steel composite plates. The method includes the steps: processing a groove on each carbon structural steel plate according to the size of each wear-resistant steel plate, and cleaning the surfaces of the grooves and the wear-resistant steel plates; placing the wear-resistant steel plates into the grooves correspondingly, placing the wear-resistant steel plates and the carbon structural steel plates into a vacuum chamber in a clamping manner, performing seal welding for the bonding positions of the peripheries of the grooves with the wear-resistant steel plates to form wear-resistant steel plate blanks, and spraying high-temperature anti-adhesion coating on the bottom surfaces of the carbon structural steel plates; stacking the bottom surfaces of the carbon structural steel plates sprayed with the high-temperature anti-adhesion coating in two composite plate blank groups in a relative bonding manner, placing into the vacuum chamber in a clamping manner, and performing seal welding for the peripheries of the bonding surfaces of the two composite plate blank groups to form a combined blank; placing the combined blank into a heating furnace for heating prior to rolling; and conveying the rolled combined blank onto a roller type quenching machine for quenching prior to trimming so that the two wear-resistant steel and carbon structural steel composite plates are obtained. The method is capable of decreasing probability of welding defects and improving interfacial strength of the composite plates without changing performances of base plate layers, and is high in production efficiency.

The invention relates to a camellia extract composition with spicy fragrance and application of the composition serving as a cigarette additive to cigarettes. The camellia extract composition is prepared from camellia extract and spice. After the camellia extract composition with the spicy fragrance is added into the cigarettes, fragrance of the cigarettes is harmonious, unique fragrance of the cigarettes is enhanced, the spicy fragrance is enhanced, cigarette flavor is enabled to be richer and more natural, richness, sense of thickness and mellowness of the cigarette fragrance are improved, smokers smoking the cigarettes can feel nature and relaxed, offensive odor and stimulation are reduced, and overall smoking quality is improved.

The invention provides a power transmission unit for an automobile hybrid driving system, which is characterized in that a clutch is connected with an output shaft of an integrated starter-generator and one end of an output shaft of a master drive motor respectively, the other end of the output shaft of the master drive motor is provided with an epicyclic reduction gear unit, main reduction gears are respectively arranged on the output shaft of the master drive motor as well as between the epicyclic reduction gear unit and the clutch, and the clutch cover assembly of the clutch is arranged in a mode of facing to one side of the integrated starter-generator. In the invention, the power transmission unit adopts a compact design, is manufactured by an integration process and can be matched with the inner structure of an electrically driven unit, thus greatly simplifying the manufacture process and the assembly process of hybrid vehicles, making full use of the space between the inner clutch of the electrically driven unit and the integrated starter-generator under the premise of not changing the clutch performance of the clutch and enabling the inner structure of the electrically driven unit to be more compact.

The invention discloses a thin-film isolation gauge pressure sensor with a built-in balance chamber. By the aid of the thin-film isolation gauge pressure sensor, constantly unsolved major difficult problems of damage to sensors and influence on normal use of the sensors with open atmospheric reference pressure ends can be solved. The technical scheme includes that the atmospheric pressure automatic compensation balance chamber with a thin isolation film is arranged in a cavity which is arranged between the upper portion of a shell of a force sensing element and a connecting seat of an externally connected circuit board and is communicated with an atmospheric reference pressure end, the lower portion of a cavity body which is isolated by the thin isolation film is communicated with a pressure guide cavity body on the lower portion of the shell of the force sensing element to form a closed pressure guide cavity, and the upper portion of the cavity body is communicated with the atmospheric reference pressure end. The thin-film isolation gauge pressure sensor has the advantages that the thin-film isolation gauge pressure sensor is compact in structure, reasonable in design, easy to manufacture and safe and reliable in operation and can be isolated from external environments, atmospheric pressures can be automatically balanced, the sensor can be effectively prevented from being damaged by moisture condensation, corrosion and the like, accordingly, the stability of the sensor can be improved, the protection grade and the explosion-proof grade of the sensor can be upgraded, normal use of the sensor can be guaranteed, and the service life of the sensor can be prolonged.

The invention relates to a flexible stretchable sensor, belongs to the technical field of sensors, and solves the problems that the existing flexible stretchable sensor is easy to be damaged, the detection result is inaccurate, and the circuit design is unreasonable. The flexible stretchable sensor disclosed in the invention comprises an M x N array formed by arranging M x N detecting units. Eachof the detecting units comprises a stretchable portion and a non-stretchable portion. A sensing module of each detecting unit is arranged in the non-stretchable portion, and is connected to the sensing modules of the adjacent detecting units by wires arranged on the stretchable portion. When the flexible stretchable sensor is used, a macroscopic stretching function is achieved by the stretchable portion without affecting the detecting function of the non-stretchable portion. According to the structural design of the non-stretchable portion, the electrical performance deterioration caused by stretching the sensing module can be avoided, and the value read by the sensor is stable and reliable. Moreover, the overall system structure size is small, the control circuit is simple, and the cost is low according to the array design.

The invention provides a spraying elastic methacrylate coating, which consists of three components A, B and C, wherein the component A consists of 20 to 80 weight percent of methyl methacrylate, 10 to 50 weight percent of elastic macromolecular modifier and 5 to 30 weight percent of acrylate monomer; the component B consists of 20 to 80 weight percent of methyl methacrylate, 5 to 50 weight percent of elastic macromolecular modifier, 5 to 30 weight percent of acrylate monomer, 1 to 10 weight percent of filler and 0.5 to 3 weight percent of promoter; and the component C is an initiator which accounts for 1 to 6 percent of the total mass of the coating.

The invention discloses a preparation process for a composite continuous ceramic fiber. The process is characterized in that a reinforcing material is added into precursor sol of a ceramic fiber, the reinforcing material and the precursor sol are fully mixed under stirring, an obtained composite solution is condensed to obtain spinnable precursor composite sol, the technique of plastic extrusion spinning is employed to process the condensed composite sol so as to obtain continuous fiber ceramic protofilament containing the reinforcing material and finally the protofilament is dried and sintered so as to obtain the composite continuous ceramic fiber. The ceramic fiber prepared in the invention is applicable to the fields of aerospace, automobiles, stationary and sports goods and can be used as reinforcement of a composite material.

Provided is a double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control. The method is suitable for welding of titanium-steel clad plates. The double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control is provided in order to solve the problems that in the existing titanium-steel clad plate welding process, operation is complex, accumulated heat input is large, welding stress deformation is large, and the welding efficiency is low. The method comprises following steps that 1, semi-elliptical groove is prepared along a titanium-steel clad plate interface; 2, a welding area is cleaned; 3, a transition layer is prepared, wherein the transition layer is prepared by mixing a certain proportion of metal powder to be uniform; 4, laser welding is conducted on both sides, wherein after assembling and clamping are conducted, the titanium-steel clad plate is preheated to 100 DEG C to 120 DEG C, synchronous welding is conducted on the two sides with laser, and when welding is conducted, metal on the two sides is merged uniformly by controlling the linear energy. According to the double-sided laser titanium-steel clad plate full penetration welding method based on transition layer control, by means of control of the transition layer, the mechanical property of a welded joint of the titanium-steel clad plate is improved, an existing welding technology is simplified, and high-quality and high-efficiency welding is achieved.

The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.

The invention discloses a production method of a high-finish steel tube. A 38*3mm round billet used in the production method is made of 20# steel. The production method comprises the following steps: heating billet: heating the round billet (phi 50mm) which passes the inspection in an annular heating furnace at 1200 DEG C+/-10 DEG C, holding the temperature for 50+/-5min and tapping; punching: selecting a mandrel plug (phi 50mm) and an ejector rod ((phi 38mm), adjusting the distance of a roller of a puncher to be 40mm, the spacing of guide plates to be 48mm, the extend distance of the mandrel plug to be 31mm and rolling reduction to be 16% and adjusting other parameters, then punching, wherein the punched capillaries have the specification of phi 52*4mm. The production method has the advantages that the surface quality of the steel tube is guaranteed; the surface of the produced steel tube is smooth and high in finish and is identical to the surface of a bright steel tube without being subjected to oxidization thermal treatment and moreover the property of the steel tube is not affected; in addition, the production cost is reduced greatly.

A preparation method of strengthened inorganic polymer base composite material of continuous fiber relates to a preparation method of inorganic polymer base composite material. The invention solves the problems that inorganic polymer base composite material prepared by the existing method has bad heat resistance, members with complicated shapes are not easy to be manufactured by the exiting preparation method of fiber strengthened inorganic polymer base composite material, the preparation technology is complicated, and the cost is high. The preparation method is as follows: firstly, metakaolin is prepared; secondly, inorganic polymer batch is prepared; thirdly, prepreg is prepared; fourthly, the prepreg is paved in a mould; fifthly, high-temperature processing is carried out; therefore, the strengthened inorganic polymer base composite material of continuous fiber is prepared. The preparation in the invention has simple technology and low cost, can manufacture members with complicated shapes, has good heat resistance, and can be stably used at the temperature of 1000 DEG C.

The invention discloses a permanent magnet starting power generation system with an open-circuit fault-tolerant capability and a control method thereof. A permanent magnet starter generator is a high-impedance permanent magnet synchronous motor, and a bidirectional bridge converter has a redundant bridge arm to continuously detect the motor winding current when the generator starts and a system outputs stable direct current voltage, so as to realize vector control and fault detection. When an open circuit fault of a switching tube is detected, a driving signal of the bridge arm where a faultyswitch tube is located is blocked, a corresponding bidirectional thyristor is turned on, and the redundant bridge arm replaces the faulty bridge arm to work; when a motor winding open fault is detected, a driving signal of bridge arm connected to the winding is blocked, the corresponding bidirectional thyristor is turned on, a neutral point of the motor winding is connected to a midpoint of the redundant bridge arm, and the stable output of a torque or direct-current side voltage of the motor can be realized through a certain current compensation algorithm. According to the permanent magnet starting power generation system with the open-circuit fault-tolerant capability and the control method thereof provided by the invention, the starting torque is stable, and the power generation controlis simple; and the permanent magnet starting power generation system can operate stably under the open circuit state of the switching tube or the open circuit state of the motor winding, the fault-tolerant capability is high, and the reliability is high.

The invention provides a preparation method of Monostroma nitidum crude polysaccharide and an application thereof in a cigarette. The invention is characterized in that the preparation method of the Monostroma nitidum crude polysaccharide comprises the following steps: taking Monostroma nitidum, inactivating enzyme at high temperature, washing to remove impurities, drying and grinding, adding water to extract, performing solid-liquid separation, concentrating under reduced pressure, precipitating with ethanol, and washing and drying to obtain the crude polysaccharide. The application of the crude polysaccharide is as follows: the Monostroma nitidum crude polysaccharide is dissolved in water to prepare material solutions of different concentrations; and the material solutions are sprayed to cut tobacco evenly. The sensory evaluating result shows that after the Monostroma nitidum crude polysaccharide is added in the cigarette, the smoke of the cigarette has no peculiar smell, the quality of aroma is improved, the non-subject odor and irritation are reduced, the remaining aroma is sweet and refreshing, and the overall smoking quality is increased. In the preparation method, the original performances of the cigarette are not changed, the original processing technology is not changed, the aroma quality of the cigarette is improved, and the sensory comfort level of the cigarette is increased, thus the method has higher meaning and value in actual production.

An equipment for preparing the prefabricated optical-fibre rod by plasma technique is composed of plasma resonance cavity, coaxial line and rectangular microwave waveguide. A microwave energy transmission converter with doorknob contact type coaxial waveguide conversion structure is also used, which features reliable contact during regulation and good heat dissipation. The water cooling and anti-leakage apparatus is also designed.

The invention relates to an RS-485 interface polarity detecting method and system based on an electric energy meter communication protocol. The method comprises the steps: (1) storing signals received by an RS-485 receiver in a register, (2) judging stored data, (3) switching a polarity switch, and (4) finishing the detection and starting to receive following data. The system comprises phase inverters, a receiver unit, a transmitter unit and a polarity detecting unit. The polarity detecting unit comprises a clock circuit, a polarity detecting circuit and the shifting register. A signal input pin of the transmitter unit is connected with one phase inverter. A signal input pin of the receiver unit is connected with the other phase inverter. When networking of an RS-485 module is performed, A and B polarities can be changed at random; a pull-up resistor and a pull-down resistor are only additionally arranged on a concentrator or a collector, and the networking is easy and reliable.

The invention provides green emitting phosphor for a plasma display panel. The concrete chemical formula of the green emitting phosphor is as follows: M (1plus x) M' (1 minus 2x) BP208: Tbx, wherein x is more than 0 and less than or equal to 0.3, M is one or several of Li, Na and K, and the M' is one or several of Ca, Sr and Ba. The invention also provides a method for preparing the green emitting phosphor, comprising the following steps: firstly, weighing corresponding raw materials according to the weight ratio expressed in the chemical formula; secondly, carrying out high-temperature roasting on the raw materials and rinsing coasted materials; and thirdly, carrying out separation, filtration, size grading and drying on the rinsed materials to obtain the vacuum ultraviolet induced greenemitting phosphor having stable chemical property, short after time and excellent luminance.

The invention discloses a method for modifying the surface of high molecular weight polyethylene powder through interfacial polycondensation. The method comprises the following steps of: soaking ultra-high molecular weight polyethylene (UHMWPE) powder in a reaction monomer solution containing two or more than two acyl chloride groups or isocyanate groups; and adding into a reaction monomer solution containing two or more than two amino groups and hydroxyl groups, stirring and dispersing, and obtaining a layer of polyurea and/or polyurethane and/or polyamide film on the surface of the ultra-high molecular weight polyethylene powder through the interfacial polycondensation, so that the compatibility and adhesion of the surface of the UHMWPE powder are effectively improved and the performance of the UHMWPE powder is not changed. In addition, the method for modifying the surface of the UHMWPE powder is easy to implement, high in treatment speed and good in treatment effect, has low requirement on equipment, and is suitable for industrial production.

The invention discloses a continuous casting crystallizer function protection material special for high-oxygen enamel steel and relates to metallurgical auxiliary materials. The continuous casting crystallizer function protection material comprises, by weight, 55.0%-62.5% of pre-molten materials, 4%-6% of lithium carbonate, 4%-6% of light-burned white alkali, 1%-3% of bentonite, 8%-10% of high fluorite powder, 1%-4% of high alumina, 4%-6% of cryolite, 3%-5% of sodium fluoride, 2%-4% of albite, 2%-4% of fine glass powder, 0-2% of imported carbon black and 0-2% of graphite, and the sum of the content of all the raw materials is 100%. The continuous casting crystallizer function protection material is special for the high-oxygen enamel steel and can be appropriately spread in a crystallizer, and no sintering and caking phenomenon occurs; melting is uniform, and a stable three-layer structure is achieved; the thickness of a liquid slag layer is 8-12 mm; the steel slag consumption quantity is 0.3-0.5 Kg/ton; and the surface quality, the subsurface quality and the inner quality of a casting blank are good.