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35results about How to "Processing technology is easy to control" patented technology

Biodegradable plastic color masterbatch and preparation method thereof

The invention discloses biodegradable plastic color masterbatch and a preparation method thereof. The biodegradable plastic color masterbatch is prepared from, by weight, 60%-85% of biodegradable plastic carriers, 0-15% of filler, 5%-25% of pigment and 2%-9% of auxiliaries, all the components are weighed and added into a mixer, after even mixing is conducted, the mixed components are added into a screw extruder, melt extrusion is conducted, cooling and granulating are conducted, and the biodegradable plastic color masterbatch is obtained, wherein the biodegradable plastic carriers are one or two or more of polylactic acid, poly adipate-butylene terephthalate and poly butylenes succinate, the filler is silicon dioxide and / or calcium carbonate, the pigment is inorganic pigment or organic pigment, and the auxiliaries are composed of a coupling agent, a plasticizer and a lubricating agent. The prepared color masterbatch is excellent in physicochemical property, the situation that nondegradable plastic components are mixed in biodegradable plastics is avoided, and the problems that time and labor of coloring of the biodegradable plastics are consumed, and the pigment affects the biodegradable plastic performance are solved.
Owner:HENAN TIANREN BIOMATERIAL RES INST

Nanometer polyamide composition with metal luster and preparation method of nanometer polyamide composition

The invention discloses a nano-polyamide composition with metallic luster and a preparation method thereof, which comprises the following raw material components in parts by weight: 100 parts of polyamide resin, 5-40 parts of nano-polyamide masterbatch, and 0.3 parts of metallic pigment ~2 parts, 0.05~1 part of dispersing aid, and 0.5~2 part of processing aid; wherein, the nano-polyamide masterbatch is a self-made product, including nanoparticles and dispersing aid, and the total amount contained in the nano-polyamide composition The weight ratio of nanoparticles to the total dispersion aid is 4:1~52:1. The present invention selects self-made nano polyamide masterbatch as reinforcing material, interacts with core-shell type dispersant, compound with polyamide resin, supplemented with corresponding processing aids, obtains a nano polyamide composition with metallic luster, It has good mechanical properties and surface properties, excellent surface rigidity, scratch resistance, oil resistance and adjustable gloss. It can be used in household appliances, automobiles and other non-spraying materials with metallic luster.
Owner:GUANGDONG ALDEX NEW MATERIAL CO LTD

Power MOSFET (metal-oxide-semiconductor field effect transistor) device and manufacturing method thereof

The invention relates to a power MOSFET (metal-oxide-semiconductor field effect transistor) device and a manufacturing method thereof. The power MOSFET device comprises an active region and a terminal protecting region which are arranged on a semiconductor substrate. On the vertical view plane of the power MOSFET device, a scribing slot trench step is arranged in the scribing slot of the outer ring of the terminal protecting region; insulating gate oxidation layers cover the side wall and bottom of the scribing slot trench step, and a conducting polysilicon side wall is deposited on the scribing slot trench step covered with the insulating gate oxidation layers; insulating dielectric layers cover the corresponding insulating gate oxidation layers of the conducting polysilicon side wall and the bottom in the scribing slot trench step, and the insulating dielectric layers are connected with insulating dielectric layers on the terminal protecting region; and a first conducting type trench step injection region is arranged below the bottom of the scribing slot trench step. The power MOSFET device is compact in structure; the manufacturing cost of the MOSFET device is reduced; and the pressure-resistance capacity of the MOSFET device is improved.
Owner:WUXI NCE POWER

Low-shrinkage high-weatherproofness polypropylene composite material for shell of electric tool

The invention discloses a low-shrinkage high-weatherproofness polypropylene composite material for a shell of an electric tool. The polypropylene composite material is prepared from the following components in parts by weight: 45 to 85 parts of co-polypropylene, 10 to 50 parts of enhancer, 1 to 15 parts of flexibilizer, 0.1 to 0.5 part of coupling agent, 0.1 to 0.5 part of antioxidant, 0.1 to 0.5 part of light stabilizer and 0 to 5 parts of other additives. According to the polypropylene composite material disclosed by the invention, the shrinkage rate of a matrix resin is decreased, so that the dimensional stability of the material is improved; meanwhile, the dimensional stability of the material is improved, so that the polypropylene composite material is capable of replacing ASA (Acrylonitrile Styrene Acrylate Copolymer) to be used for producing the shell of the electric tool.
Owner:HEFEI GENIUS NEW MATERIALS

Hemisphere drawing method

The invention discloses a drawing method, in particular an aerospace hemisphere part drawing method, and belongs to the technical field of aerospace. The method comprises positioning of a hemisphere machined part in a drawing mold in pre-high-temperature environment for predrawing and hot drawing. The hemisphere drawing method solves the problems of high scrap rate, easiness in pulling fragmentation and high production cost in the prior art, and adopts twice drawing and setting in high-temperature environment to effectively prevent pulling fragmentation in the hemisphere drawing process; and the drawing method is lower in auxiliary condition requirements and easy to realize, reduces the production cost, further improves the production efficiency, guarantees the product quality, and is high in practicability.
Owner:SICHUAN FUTURE AEROSPACE IND LLC

Nonlinear self-correcting resonance type surface acoustic wave temperature sensor

The invention discloses a nonlinear self-correcting resonance type surface acoustic wave temperature sensor, which comprises a substrate, an interdigital transducer, a first metal reflecting grating array and a second metal reflecting grating array. The acoustic surface wave on the substrate has natural unidirectivity in a phase velocity propagation direction, an energy flow angle PFA exists in agroup velocity propagation direction and the phase velocity propagation direction, and the absolute value of PFA is smaller than or equal to 10 degrees; and the acoustic aperture directions of the interdigital transducer, the first metal reflecting grating array and the second metal reflecting grating array are perpendicular to the phase velocity propagation direction, and the bus bar direction ofthe interdigital transducer is parallel to the energy flow angle PFA direction. The resonance type surface acoustic wave temperature sensor based on the design has a low-frequency resonance peak anda high-frequency resonance peak. According to the invention, low-frequency and high-frequency characteristic resonance peaks are utilized; through a self-difference method, nonlinear self-correction of the sensor is achieved, and the small size of a single device is kept; meanwhile, a problem that when a single resonance peak of an existing single resonator is used, frequency signal demodulation is affected by a wireless path is solved, and calibration avoidance of the sensor in the using process is achieved.
Owner:BEIJING RES INST OF TELEMETRY +1

Process for processing prepared rehmannia root

The invention discloses a process for processing prepared rehmannia root. The method includes: firstly steaming raw rehmannia root with saturated steam and collecting the generated rehmannia root juice, performing cooling to 50-65DEG C, extruding the rehmannia root, then introducing saturated steam to conducting steaming and collecting rehmannia root juice; and drying the well steamed prepared rehmannia root for 8-10h, then adding the rehmannia root juice to conduct stewing for 10-16h, and then further performing drying for 40-50h. The prepared rehmannia root processed by the method provided by the invention has a verbascoside content up to 0.040-0.057%, which is significantly higher than the requirement of 0.02% in 2010 edition ''Pharmacopoeia of the people's republic China'', and the processed prepared rehmannia root has stable quality and high qualified rate.
Owner:山西振东道地药材开发有限公司

Shielding case and manufacturing method thereof

The invention discloses a shielding case and a manufacturing method of the shielding case. The shielding case comprises an insulating case body and a metal conducting layer arranged on the outer side of the insulating case body. The thickness of the metal conducting layer is 0.001mm-0.003mm. The shielding case and the manufacturing method of the shielding case have the advantages that the shielding case is formed by arranging the metal conducting layer on the insulating case body, the structure is light and simple, working procedures are simple, processing efficiency is high, and assembly cost is low.
Owner:领胜科技(苏州)有限公司

Coil forming method and forming mould for electromagnetic metering equipment

The invention relates to a coil forming method and a forming mould for electromagnetic metering equipment. The method comprises the following steps of: (1) mounting a winding former on an automatic winding machine and fixing; (2) winding by the winding machine to obtain a well-wound coil and winding the surface of the coil by using an insulating tape; (3) opening the forming mould and placing insulating layers in the upper mould and the lower mould; putting the coil in the lower mould and closing the mould; pressing the coil by using the upper mould and setting the current intensity of a voltage regulator in a heating mould; heating the coil to 155-165 DEG C and keeping the temperature for 2-6 minutes; and (4) after the coil is cooled to 55-65 DEG C, taking out the coil to obtain a coil for the electromagnetic metering equipment. The invention can guarantee the precision of the coil, has neat and compact coil array, reduces flux leakage in a use process, reduces the magnetic flow discreteness and is suitable for mass industrial production of enterprises.
Owner:CHONGQING CHUANYI AUTOMATION +1

Machining technology of cotton fiber and metal wire blended yarn

The invention discloses a machining technology of cotton fiber and metal wire blended yarn, and relates to the technical field of blended yarn. The technology includes the following steps of firstly, preparing metal wires; secondly, preparing cotton fiber; thirdly, conducting blending; fourthly, conducting softening, drying and sizing. The technology is simple and controllable, strict high temperature and high pressure conditions are not needed, and the prepared blended yarn has beautiful metal color and luster and is excellent in electromagnetic radiation resisting, static electricity resisting and bacteria resisting performance and is comfortable and breathable; by means of softening, drying and sizing, the color fastness and softness of the cotton fiber are improved, the roughness of textile is reduced, and elasticity and strength are rich.
Owner:安徽锦翔纺织服饰有限公司

Method for processing large-diameter figure-eight-shaped hole series

The invention discloses a method for processing a large-diameter figure-eight-shaped hole series. The hole series comprises a first hole and a second hole which are crossed in parallel to form a figure-eight shape and are cut by a boring tool in a vertical boring way, and the range of a cutting edge angle Alpha of the boring tool is not less than 72 DEG and not more than 90 DEG; and the method comprises the steps as follows: 1), placing workpieces onto a vertical boring worktable and enabling the front end surfaces of the workpieces to face up, and enabling the shaft lines of the first hole and the second hole to be in the perpendicular direction and parallel to a vertical boring spindle; 2), aligning the shaft center of the first hole by a dial indicator and enabling the front end surfaces of the workpieces to be perpendicular to the vertical boring spindle, clamping and fixing the workpieces; 3), carrying out pre-boring, semi-fine boring and fine boring on the first hole in sequence, and blowing away cuttings by compressed air; 4), aligning the shaft center of the second hole on the basis of the shaft center of the first hole; 5), carrying out pre-boring, semi-fine boring and fine boring on the second hole in sequence, and blowing away the cuttings by the compressed air; and 6), deburring, chamfering, and finishing the workpieces. According to the method, the processing precision and the working efficiency are improved; and the method is suitable for cutting the large-diameter figure-eight-shaped hole series in large rotary screw rods or other large workpieces.
Owner:CSSC MES DIESEL

Shielding case and preparation method thereof

The invention discloses a shielding case and a preparation method of the shielding case. The shielding case is composed of a supporting layer with certain strength and a conducting layer which is compounded on the outer side of the supporting layer. The supporting layer is non-conducting, and vicat softening temperature of the supporting layer is not lower than 100 DEG C. Metal materials used in a traditional shielding case product and metal stamping forming technology adopted in the process of machining are changed, and ordinary plastic composite metal foil rubber belt materials and plastic die cutting machining technology are adopted. An ordinary cutting die is used for cutting and machining plastic materials and metal foil rubber belt, raw material cost is low, machining technique is easy to control, and die cost and machining cost are low. Obtained products can effectively be shielded from electromagnetism.
Owner:DALIAN SHENGFENG ADHESIVE PROD

Rice seedling substrate

InactiveCN107216204AThe processing technology is simple and easy to controlLow costBio-organic fraction processingBioloigcal waste fertilisersMushroomSeedling
The invention discloses a rice seedling substrate which is prepared from 30%-35% by mass of rice husk, 25%-30% by mass of mushroom residue, 20%-25% by mass of vermiculite and 15%-20% by mass of an organic fertilizer by mixing, a preparation method of the rice seedling substrate comprises the following steps: 1) stacking the rice husk into piles, then adding an appropriate amount of water, and sprinkling zymocyte for fermentation at 35-40 DEG C for 24 hours; 2) evenly mixing the fermented rice husk in the step 1), the mushroom residue, the vermiculite and the organic fertilizer according to the above formula evenly, and then drying to obtain a mixture; and 3) crushing the mixture prepared by the step 2) to obtain the rice seedling substrate. By the way, the processing technique is simple, easy to control, and low in cost, the prepared rice seedling substrate which is rich in a variety of trace elements and active bacteria, and the transplanting survival rate of rice seedlings can be effectively improved.
Owner:TAICANG DONGJING FARM SPECIALIZED COOP

Fuel cell board molding manufacturing device

The invention relates to a fuel cell board molding manufacturing device which comprises a fixed frame, a fixed block, two moving sliders, an upper hydraulic cylinder and a lower hydraulic cylinder. The fixed frame comprises two parallel brackets, the fixing block is fixed on the fixed frame, a guide rail is arranged on the fixed frame, and the moving sliders are slidingly connected to the fixed frame and can slide up and down along the guide rail. The two moving sliders are disposed above and below the fixed block, a lower end surface of the upper hydraulic cylinder abuts against an upper endsurface of the upper moving slider, an upper end surface of the lower hydraulic cylinder abuts against a lower end surface of the lower moving slider, the upper and lower surfaces of the fixed block are provided with a fuel cell female die and a fuel cell male die, and the lower surface of the upper moving slider and the upper surface of the lower moving slider are provided with a fuel cell male die and a fuel cell female die. According to the technical scheme of the invention, a die with one die and one hole and the pressure of a pressing machine are employed, the function of one die and multiple holes is achieved, the multiple requirements of a current industry for the production capacity, precision, consistency and one-time pass rate and the like of a fuse cell electrode board are satisfied, and the mass production of fuel cell boards is facilitated.
Owner:BEIJING NOWOGEN TECH CO LTD

Manufacturing method of mildew-proof height-adjustable round bamboo walking stick

The invention relates to a mildew-proof height-adjustable round bamboo walking stick. A fresh small-diameter round bamboo is quickly heated by high-temperature saturated steam for 8-90 minutes, the round bamboo is taken out, an end part of the round bamboo is bent into a handle, and drying is performed. A bottom end of a bamboo rod is processed and then is plugged into a combined connecting piece.A diameter of an opened circular tube is reduced through rotation of an external locking nut so that an innermost telescopic rod is locked to determine a height. A handle end head of the bamboo rod is sealed and external processing and finishing are performed. The small-diameter round bamboo can be used as a novel bamboo walking stick because a bamboo tube can be ensured to have no crack and havedimensional stability during drying after high-temperature saturated steam treatment so that original optimal structural strength of the round bamboo can be maintained, nutrient substances in the bamboo tube are destroyed, and the bamboo walking stick has mildew-proof and mothproof effects. The novel bamboo walking stick uses unlimited bamboo species, is low in production cost, does not add any chemical reagent, and is sustainable circular economy.
Owner:NANJING FORESTRY UNIV

Container side wall shock wave damage equivalent target and equivalent experiment method

ActiveCN111981913AImprove deformation equivalenceImprove stabilityTargetsEngineeringMechanical engineering
The invention discloses a container side wall shock wave damage equivalent target and equivalent experiment method. The equivalent target is a circular plate equivalent target designed based on geometric parameters, material parameters and structural fundamental frequencies of a container structure. The equivalent experiment method comprises the steps of building a deformation mapping relation between a prototype container side wall and the combined equivalent target by an impact dynamic simulation method based on the equivalent target, and then determining deformation of the original side wall by adopting the mapping relation between the prototype container side wall and the combined equivalent target according to shock wave damage deformation of the equivalent target. The shock wave damage combined equivalent target with similar deformation is designed based on the base frequency of the container side wall, the equivalent target is simple in structure and convenient to use, and the experiment cost is reduced.
Owner:XIAN MODERN CHEM RES INST

Fully-insulated and fully-sealed handcart type high-voltage isolating switch equipment

The invention provides fully-insulated and fully-sealed handcart type high-voltage isolating switch equipment, and belongs to the technical field of electrical equipment. The fully-insulated and fully-sealed handcart type high-voltage isolating switch equipment comprises a cabinet body frame, a solid-sealed polar column type isolation handcart switch, a three-phase integrated current transformer,a fully-sealed lightning arrester, an incoming cable terminal and a branch bus expansion cable terminal. The cabinet body frame comprises a secondary bus chamber, an instrument chamber, an isolation switch chamber, a bus chamber and a reserved compartment. According to the invention, the problems of serious dust pollution, easy condensation and the like due to the fact that the insulation capability is reduced are solved. Meanwhile, the problem that existing solid insulation switch cabinets, gas insulation switch cabinets, incoming switch cabinets or bus connection switch cabinets are weak incurrent carrying capacity can also be solved. Te equipment realizes the ideal unity of full insulation, full sealing, dust prevention, condensation prevention, strong current carrying capacity, handcart type high-voltage isolating switch, convenient operation, less operation and maintenance, or free operation and maintenance.
Owner:国网吉林省电力有限公司长春市双阳区供电公司

Power semiconductor device and manufacturing method of collector regions thereof

The invention relates to the field of semiconductor device manufacturing and particularly relates to a power semiconductor device and a manufacturing method of collector regions thereof. The semiconductor device includes a semiconductor substrate or a semiconductor substrate having an n-type buffer layer formed on a back surface of the semiconductor substrate, a first p-type collector region and asecond p-type collector region. The first p-type collector region is formed by injecting boron into the back surface of the semiconductor substrate, and the second p-type collector region is formed by injecting aluminum into the back surface of the semiconductor substrate. From the back surface of the semiconductor substrate, the peak position of the aluminum injection is shallower than the peakposition of the boron injection. The peak concentration of the aluminum injection is higher than the peak concentration of the boron injection. The first p-type collector region is formed through boron injection, and the second p-type collector region is formed through aluminum injection. The carrier concentration of the collector regions can be effectively increased under the condition that the annealing temperature range is not exceeded. As a result, the hole injection efficiency of an IGBT device and the conductivity modulation effect of a drift region are improved. The lower conduction voltage drop and the lower on-state loss are realized.
Owner:成都森未科技有限公司

A Nonlinear Self-Correcting Resonant Surface Acoustic Wave Temperature Sensor

A nonlinear self-correcting resonant surface acoustic wave temperature sensor includes a substrate, an interdigital transducer, a first metal reflection grid array and a second metal reflection grid array. The surface acoustic wave on the substrate has natural unidirectionality in the direction of phase velocity propagation, and there is a power flow angle PFA between the direction of group velocity propagation and the direction of phase velocity propagation, and |PFA|≤10°; interdigital transducers, first metal reflectors The acoustic aperture direction of the grating array and the second metal reflective grating array is perpendicular to the direction of phase velocity propagation, and the direction of the interdigital transducer bus bar is parallel to the direction of the power flow angle PFA; the resonant surface acoustic wave temperature sensor designed in this way has low frequency and high The present invention utilizes its two characteristic resonant peaks of low frequency and high frequency to realize the non-linear self-correction of the sensor through the self-differentiation method, and maintains the small volume of a single device, while avoiding the existing single resonator When a single resonance peak is used, the demodulation of the frequency signal is affected by the wireless path, which realizes the calibration-free process of the sensor during use.
Owner:BEIJING RES INST OF TELEMETRY +1

A kind of preparation method of crepe fabric

The invention relates to a preparation method of a wrinkled fabric. The crescent-shaped composite fiber is used as a crepe raw material, and the crescent-shaped composite fiber and cotton fiber are used as a crepe weft raw material, which is interwoven into a plain weave and then subjected to relaxation heat treatment to obtain a wrinkled fabric; The twist direction of the warp and crepe weft is opposite; the preparation process of the crescent-shaped composite fiber is as follows: in the process of preparing circular side-by-side composite fibers from PET and PTT according to the FDY process, the spinneret holes on the spinneret plate are changed from circular to Crescent shape, cooled by circular air blowing, and controlling the arrangement of spinneret holes to meet certain conditions, to obtain crescent-shaped composite fibers; when preparing side-by-side composite fibers, PET melt and PTT melt are distributed from the same spinneret The spinneret m and the spinneret n are extruded; the spinneret m and the spinneret n are crescent-shaped spinneret holes; the contact surface of PET melt and PTT melt flows in the guide holes of each spinneret hole parallel to each other. The invention adopts a simple method to prepare a wrinkled fabric with stable quality and easy processing.
Owner:JIANGSU HENGLI CHEM FIBER

High-sensitivity surface plasma resonance sensor

The invention discloses a high-sensitivity surface plasma resonance sensor, which consists of a multi-layer medium layer, a transparent dielectric medium substrate (2) and a metal film layer (5), wherein the multi-layer medium layer is alternatively formed by a low-refractive-index medium thin layer (3) and a high-refractive-index medium thin layer (4), one side of the transparent dielectric medium substrate of the sensor is adjacent to a coupling prism (1), one side of the metal film layer is adjacent to a sample (6) to be tested, the total quantity of the low-refractive-index medium thin layer and the high-refractive-index medium thin layer in the multi-layer medium layer is of an odd number, the thickness of each layer is different from each other, and the low-refractive-index medium thin layer in the multi-layer medium layer is always adjacent to both the transparent dielectric medium substrate and the metal film layer. Compared with the traditional surface plasma resonance sensorbased on the single metal film layer, the sensitivity of the sensor is remarkably improved, at the same time the structure of the multi-layer medium layer is relatively simple, total thickness is smaller, the processing is easy, the cost is reduced, and stronger practical value can be realized.
Owner:BEIHANG UNIV

Polylactic acid carrier color master batch and preparation method thereof

The invention provides a polylactic acid carrier color master batch and a preparation method thereof. The polylactic acid carrier color master batch is formed by twin-screw extrusion. The addition amount of a pigment is 10-40%. A dispersing agent is a mixture of polyethylene wax and nano polystyrene microspheres, and the addition amount of the dispersing agent is 0.6-3.7% (wherein the content of the polyethylene wax is 50-70%, and the content of the nano polystyrene microspheres is 50-30%). Under the addition amount, the filter pressing value of the color master batch is relatively low and is lower than 0.08 MPa / g. According to the method, an excellent effect can be achieved with a small adding amount of the dispersing agent, and the long-period stable operation requirement of the polylactic acid color yarn spinning process can be met.
Owner:CHINA PETROLEUM & CHEM CORP +1

Preparation method of wrinkled fabric

The present invention relates to a preparation method of a wrinkled fabric. Crescent-shaped composite fibers as wrinkled warp raw materials and crescent-shaped composite fibers and cotton fibers as wrinkled weft raw materials are interwoven into plain weaves, and relaxation heat treatment is performed to prepare the wrinkled fabric; and the twisting directions of the wrinkled warps and the wrinkled wefts are opposite. A preparation process of the crescent-shaped composite fibers comprises the steps of in a process of preparing circular parallel composite fibers from PET and PTT according to anFDY process, changing spinneret orifices in a spinneret plate to be in the crescent shape from the circular shape, performing cooling by cross air blow, and controlling the arrangement of the spinneret orifices to meet a certain condition, thereby preparing the crescent-shaped composite fibers. When the parallel composite fibers are prepared, a PET melt and a PTT melt are distributed and then areextruded from the spinneret orifice m and the spinneret orifice n in the same spinneret plate; the spinneret orifice m and the spinneret orifice n are crescent-shaped spinneret orifices; and the contact surfaces of the PET melt and the PTT melt which flow in guide holes of the corresponding spinneret orifices are parallel to each other. The wrinkled fabric stable in quality and easy to process isprepared by adopting the simple method.
Owner:JIANGSU HENGLI CHEM FIBER

Manufacturing method of three-layer packaging substrate and three-layer packaging substrate

The invention discloses a manufacturing method of three-layered packaging substrates and three-layered packaging substrates. First circuit structures are formed on both surfaces of a bearing plate, wherein the bearing plate comprises a first half-solidifying slice and ultra-thin copper foils orderly laminated on both faces of the first half-solidifying slice; a second half-solidifying slice and a second copper foil are pressed on the first circuit structures at low temperature, and the second copper foil is etched to form a second circuit structure; a third half-solidifying slice and a third copper foil are pressed on the second circuit structure at high temperature; and then a third circuit structure is formed on the third half-solidifying slice after first laser drilling, full-page copper-coating, second laser drilling and removal of electro-coppering layer; both faces of the bearing plate are formed with the three-layered circuit structural substrates, after separating, solder resist structures are formed on the three-layered circuit structural substrates, thus two three-layered packaging substrates are formed. The manufacturing method of the three-layered packaging substrates and the three-layered packaging substrates can thicken the thickness of an initial structure of the three-layered packaging substrates, and are good for improving yield and avoiding substrate wrapping phenomenon.
Owner:NAT CENT FOR ADVANCED PACKAGING CO LTD

Maritime work admixture

The invention belongs to the technical field of ocean engineering materials, and particularly relates to a maritime work admixture which comprises the following raw materials in parts by weight: 50-90parts of superfine slag powder and 10-50 parts of coal ash or further comprises 1-10 parts of an excitant, and the maritime work admixture is obtained by compounding the raw materials in proportion and then uniformly stirring. By using the marine admixture disclosed by the invention, the density of a concrete material can be improved, a low-permeability, high-density and low-defect concrete structure is formed, the corrosion resistance of the concrete structure in the ocean is fundamentally improved, and the carbonization resistance, permeation resistance and freezing resistance of concrete are improved; solid waste is used as the main raw material, positive significance is achieved for resource regeneration and environmental protection, meanwhile, the raw materials are easy to obtain, the preparation process is simple, and the process is controllable.
Owner:SHANGHAI BAOTIAN NOVEL BUILDING MATERIALS

High-temperature continuously temperature measuring system and manufacturing method of temperature measurement pipe

The present invention relates to a high temperature continuous temperature measurement system and a manufacture method for a temperature measurement tube. The high temperature continuous temperature measurement system comprises a temperature measurement tube, a light receiving probe and a signal analyzer, and the temperature measurement tube consists of an outer layer and an inner layer sintered together. The temperature measurement tube is produced by the following method: a core rod, a small size rubber die and a large size rubber die are prepared; an inner layer material is filled between the core rod and the small size rubber die; the inner layer material is compacted to be formed, and is processed into an inner layer embryo; the small size rubber die is removed, an outer layer material is filled between the inner layer embryo and the large size rubber die, compacted to be formed, and processed into a temperature measurement tube embryo; the temperature measurement tube embryo is positioned in a 200 to 300 DEG C environment for hardening, and then being sintered in a 800 to 1200 DEG C non oxidizing atmosphere, to gain the temperature measurement tube. The present invention ismainly applied to the molten steel temperature measurement field. The present invention has the advantages of advanced processing craft, accurate temperature measurement, short response time, high stability, low cost, and good operation effect.
Owner:FOCUSED PHOTONICS
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