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71results about How to "Reduce integrity" patented technology

Apparatus and method for rapid reliable electrothermal tissue fusion and simultaneous cutting

Pieces of tissue are fused together and simultaneously cut by compressing the pieces together at an interface, delivering an impulse of electrical power which is converted into sufficient thermal energy to fuse the pieces together at the interface and simultaneously cut the fused tissue pieces along a well-defined linear path. The impulse, and the fusion and the simultaneous cutting, occur within a preferable time of 1.5-2.0 seconds but no greater than 4.0 seconds. The temperature of the thermal energy is regulated between 220° C.-320° C. The force applied on the tissue pieces is sufficient to fuse the tissue at the interface followed by further compression to cut the fused tissue along the linear path as a result of the thermal energy and a zero distance gap between jaws which compress the tissue pieces. The jaws have smooth working surfaces with an Ra of 0.15 or less microns up to 0.40 microns.
Owner:CONMED CORP

Treatment of carpal tunnel syndrome by injection of the flexor retinaculum

An apparatus and method for identifying the flexor retinaculum of the carpal tunnel, injecting an effective amount of an agent into at least a portion of flexor retinaculum or tissue adjacent thereto, wherein the agent is configured to weaken the flexor retinaculum. The system may further include means for increasing the tensile stress in the flexor retinaculum post-injection using hand exercises, thereby weakening its structural integrity and decreasing the pressure within the carpal tunnel that impairs median nerve function.
Owner:JOHN M AGEE & KAREN K AGEE TRUSTEES OF THE JOHN M AGEE TRUST

Multilayer composite armour

The invention relates to the area of armor and in particular to multilayer armor having a composite layer containing a first material made of a metal or an alloy and a second material where the second material is porous and in that the metal or metal alloy is infiltrated into some or all of the pores of the second material and characterized in that a cage made of plates having openings contains the first and second materials and in that the cage is itself coated, at least partly, with the infiltration metal or alloy, the melting point of the cage material being higher than that of the infiltration metal or alloy.
Owner:ARC LEICHTMETALLKOMPETENZ ZENT RANSHOFEN GMBH +1

Coal bed hydraulic fracturing and water pressure blasting coupling permeability increase method and device

PendingCN110306967AFine and even cracksWeakened integrityFluid removalGas removalINCREASED EFFECTCoal
The invention belongs to the technical field of coal bed permeability increase, and particularly relates to a coal bed hydraulic fracturing and water pressure blasting coupling permeability increase method and device. Firstly, high-pressure fracturing water is injected in a coal hole to conduct first-time fracturing so that the coal bed can generate wide and deep fractures; then, second-time fracturing is conducted through a blasting device, multiple times of disturbance are achieved for the coal bed by adopting multi-stage blasting interval staged millisecond blasting, the completion degree of the coal bed is weakened multiple times, the fractures of the coal bed can be more fine and uniform, and the loose degree of the coal bed is increased; and finally, third-time fracturing is conducted through the high-pressure fracturing water, the fine fractures generated by blasting can further become wide and deep, the coal bed fractures can be large in density, large in depth and large in fracture width due to the adoption of the water pressure blasting coupling effect, the coal bed permeability increase effect is greatly enhanced, and the discharge efficiency of gas and other gas in thecoal bed is enhanced. By means of the coal bed hydraulic fracturing and water pressure blasting coupling permeability increase method and device, the long time period of the chemical agent effect in the prior art is avoided, and the coal bed exploitation efficiency is greatly improved.
Owner:HENAN POLYTECHNIC UNIV

Fabricated integrated large plate

The invention provides a fabricated integrated large plate and belongs to the field of fabricated buildings. The fabricated integrated large plate comprises a plurality of vertical precast slabs whichare vertically arranged, and every two adjacent precast slabs are connected through reinforcement. Compared with the prior art, the fabricated integrated large plate is more reasonable, better in intensity rigidity and waterproof effect and more convenient and efficient to manufacture, more materials are saved, and the cost is lower. According to the fabricated integrated large plate, battens arespliced in the vertical direction, for a residence and other buildings with the consistent floor height, a few of battens are used in specification, the production efficiency is high, and the cost islow. A fabricated integrated outer plate spliced through the fabricated integrated large plates can be flat in surface, plastering can be omitted, and therefore materials are saved, the constructionefficiency is high, and the cost is reduced. Further, the fabricated integrated large plates are hoisted together after outer wall decoration is completed in advance in a factory, the construction efficiency and the construction quality can be improved, and the cost is saved.
Owner:赵东昕

Intelligent household lock with cleaning device

InactiveCN108787517ALess impact on aestheticsEasy dirtCleaning using toolsElectric permutation locksEngineeringFingerprint
The invention discloses an intelligent household lock with a cleaning device, and belongs to the technical field of intelligent household locks. The intelligent household lock comprises a main body, acleaning mechanism arranged on the top surface of the main body and a protective mechanism arranged on the front surface, wherein the cleaning mechanism comprises a connecting rod; the upper surfaceof the connecting rod is fixedly connected with a first handle; the bottom surface of the connecting head is fixedly connected with first cleaning cotton; the bottoms at the two sides of the connecting rod are equipped with fixed blocks; the two sides of the connecting rod are fixedly connected with sleeves; inner sides of the two sleeves are fixedly connected with springs; the inner sides of thesprings are fixedly connected with fixed rods; the upper surfaces of the two fixed blocks are fixedly connected with two guide columns; and the inner sides of the two ends of the connecting rod are equipped with two guide holes. Through the connecting rod positioned on the top of the main body and the like, fingerprints and dirt on a touch pad are conveniently cleaned, so that the elegant appearance of the lock body is prevented from being affected; and a slide cover is designed, so that the problem that common household lock cannot timely clear dust on the surface of a fingerprint identification panel is solved.
Owner:孝感市裕美家居创意设计有限公司

Bamboo plywood beam structure

The invention discloses a bamboo plywood beam structure, which comprises an upper flange board, a web board and a lower flange board which are made of bamboo plywood and sequentially connected, wherein the upper flange board is formed by connecting an upper flange outer board and an upper flange inner board positioned on the lower side of the upper flange outer board; the lower flange board is formed by connecting a lower flange outer board and a lower flange inner board positioned on the upper side of the lower flange outer board; the web board comprises a plurality of superposed single web boards; and tenons arranged at intervals are arranged on the surface of each single web board opposite to the inner boards, the tenons on two adjacent single web boards are staggered, the upper flange inner board and the lower flange inner board are provided with mortises matched with the size and the distribution position of the tenons, and the tenons are embedded into the mortises. The bamboo plywood beam structure has large anti-shearing bearing capacity, and is simple in structure and easy to manufacture; the number of the composing unit boards can be adjusted according to the magnitude of the shearing force borne by a beam; and the integrity of the transverse H-shaped beam can be improved.
Owner:SOUTHEAST UNIV

Nitrogen-self-generating storage system

The invention relates to a nitrogen-self-generating storage system. The nitrogen-self-generating storage system comprises a storage space and is characterized in that the nitrogen-self-generating storage system further comprises an electronic sieve oxygen generation module; the electronic sieve oxygen generation module comprises an oxygen generation membrane and a gas outlet channel; the interiorof the storage space communicates with the oxygen generation membrane so as to adsorb oxygen in air in the storage space, and thus nitrogen in the air is left in the storage space; the electronic sieve oxygen generation module has the characteristics of adsorbing and collecting the oxygen in the air, and when being combined with any object with a storage space, the electronic sieve oxygen generation module can rapidly absorb and collect oxygen in the storage space and reserves nitrogen in the storage space for refreshment and preservation of food, valuables and the like; and the system can bewidely used for transportation and logistics, cultural relic storage, refrigerator preservation, food refreshment and quality preservation and the like.
Owner:FOSHAN SHUNDE GELINMEI ELECTRONIC PROD CO LTD

Steel stair formwork and constructing method for once pouring forming of building staircase

The invention discloses a steel stair formwork for once pouring forming of a building staircase and belongs to the field of building construction. The steel stair formwork comprises two inclined beams and a plurality of step side moulds, wherein the two inclined beams can be erected between an upper-layer stair landing and a lower-layer stair landing which are adjacent to each other. The two inclined beams can be arranged in parallel at interval, the two corresponding ends of the two inclined beams are fixedly connected through horizontal beams to form a formwork body, and height adjusting devices are arranged at the two ends of the formwork body. The step side moulds are sequentially fixed under the formwork body at intervals from top to bottom, the length of one step side mould is larger than the width of the formwork body, the same sides of the step side moulds are fully sealed through steel plates, and winged edges perpendicular to the steel plates are arranged at the tops of the steel plates. The steel stair formwork is convenient to install, simple to construct, easy to operate, capable of achieving simultaneous pouring of stairs and wall bodies of the staircase, capable of avoiding secondary embedded reinforcing steel bars, capable of guaranteeing the integrity of the staircase and capable of achieving tooled and standardized operation of staircase structure construction. The invention further discloses a constructing method for once pouring forming of the building staircase.
Owner:LONGXIN CONSTR GRP

Active control method for rockburst of hard-rock tunnel

The invention discloses an active control method for a rockburst of a hard-rock tunnel, relates to the technical field of stress of surrounding rock at rockburst release sections in underground construction, and aims to solve the problems that a conventional method for actively controlling rockburst through blasting can judge neither the accurate position or the range of a high in-situ stress region nor the accurate position of a surrounding rock structural face, is poor in blasting accuracy and low in efficiency, and cannot guarantee the construction safety. The adopted technical scheme is that by use of tunnel advanced geological prediction, construction prestress release blastholes, borehole TVs, surrounding rock structural face tandem delayed presplitting blasting and in-hole high-pressure water injection, the opening degree of the surrounding rock structural face is increased by targeted comprehensive application of the method according to the characteristics of the tunnel surrounding rock structural face; meanwhile, the extension length of the structural face is increased, and the integrity degree of surrounding rock is reduced, so that the high ground stress of surrounding rock is released, the rockburst energy is reduced or eliminated, the rockburst prevention accuracy and efficiency are improved, and the construction safety is ensured.
Owner:CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE

Escalator for ship

ActiveCN103848327AMeet the requirements of normal useGuaranteed integrityEscalatorsMarine engineeringSprocket
The invention relates to an escalator for a ship. The escalator is characterized in that an underlying machine room is adopted, a drive tractor is fixedly arranged on the lower part of an upper horizontal section of a truss, and a main drive chain of a drive system is provided with a tension deviation prevention device; a transverse profile of the truss is provided with an emergency guide rail, two guide rail supporting plates are respectively provided with a return-side auxiliary wheel press rail and a return-side main wheel press rail; an electrical system is provided with an inclination angle sensor, an automatic heating loop and an automatic air exhaust loop, so that the escalator for the ship can satisfy the application characteristics on the ship. Not only can the normal running of a transmission chain be guaranteed, but also the danger of the transmission chain in a shaking environment can be prevented; meanwhile, the running range of a stepped chain wheel and a stepped auxiliary wheel can be limited, and the salt corrosion problem of the escalator when used on a large-sized ship can be solved.
Owner:DONGNAN ELEVATOR

Binding system for concrete hollow building block wall piece in agglomeration building and binding method thereof

The invention provides a binding system for a concrete hollow building block wall piece in an agglomeration building and a binding method thereof and relates to a binding system and a binding method. According to the binding system for the concrete hollow building block wall piece in the agglomeration building and the binding method thereof, the problem that lifting of the hollow building block wall piece cannot be achieved by an existing two-lifting-point lifting method, and thus inconvenience is brought to site construction is solved. According to the binding system for the concrete hollow building block wall piece in the agglomeration building, a binding beam is bound on the wall piece through a plurality of binding parts, a balance beam is located above the binding beam, and the balance beam and the binding beam are connected through lifting ropes. One end of each lifting rope is connected to one side of the binding beam, the other end of each lifting rope is connected to the other side of the binding beam, and the joints of the lifting ropes and the binding beam are slidingly connected through sliding blocks. The binding method comprises the following steps that the binding beam is connected; the sliding blocks are slidingly arranged on the binding beam; the binding beam and the concrete hollow building block wall piece are bound together through the binding parts; the balance beam and the binding beam are connected; and the lifting ropes are installed, and lifting is conducted. The binding system for the concrete hollow building block wall piece in the agglomeration building and the binding method thereof are applied to the construction industry.
Owner:HARBIN DACHENG GREEN BUILDING TECH DEV

Polyphenyl sandwich light architectural material and its production method

A polybenzene sandwich building material with light weight is prepared from magnesium oxide, plant ash, powdered coal ash, assistant (efficient water-decreasing agent NB, penetrant OS15, emulsifier OP-10 and melamine), and solution of magnesium chloride (or sulfate). Its advantages are light weight, and low cost.
Owner:谢涛

Frost-damage-preventing light-introduced-decomposition-type planting method for overwintering crops

The invention discloses a frost-damage-preventing light-introduced-decomposition-type planting method for overwintering crops and belongs to the technical field of agricultural production. According to the frost-damage-preventing light-introduced-decomposition-type planting method for the overwintering crops, light-introducing heat conducting sticks can be pre-buried at adjacent positions of the overwintering crops to introduce outside light to deep places of soil, photodecomposition coatings on photodecomposition antifrost spheres gradually decompose and liberate oxygen in case of being exposed to light, the oxygen enters multiple sections of internal-arranged heat-release control tubes and then be in contact with a self-heating material so as to trigger heating actions, meanwhile, innercores of fertilizers are assisted to independently disintegrate from outside to inside and provide nutrients for roots of the crops, thus, the light-introducing heat conducting sticks can introduce the light and then trigger heating action and feeding action of the photodecomposition antifrost spheres at a low temperature stage, the soil is heated up, an appropriate growth temperature for the crops is maintained, meanwhile, the nutrients and oxygen essential to growth are provided, the traditional passive defense mode is changed into an active light introducing mode, and the yield of the overwintering crops can be greatly increased while frost damage is effectively prevented.
Owner:王维

Agricultural product cleaning and transferring integrated equipment

The invention relates to the technical field of cleaning equipment, in particular to agricultural product cleaning and transferring integrated equipment. The agricultural product cleaning and transferring integrated equipment comprises a supporting rod and a switch, wherein the front side of the left end of the switch is fixedly connected with the switch; a feeding mechanism is arranged on the left side of the top end of the supporting rod; a cleaning mechanism is arranged on the right side of the top end of the supporting rod; a box feeding mechanism is arranged in front of the right side of the cleaning mechanism; a movable abutting mechanism is arranged behind the box feeding mechanism; the right end of the cleaning mechanism is fixedly connected with a second fixing plate; and a placing mechanism is arranged behind the movable abutting mechanism. According to the agricultural product cleaning and transferring integrated equipment, replacement of cleaned crops can be automatically completed, manual operation of people is not needed, the labor amount of people is greatly reduced, the whole device has certain consistency and integrity, cleaning and boxing are integrated, the whole device is reasonable in design, people can use the device conveniently and rapidly, the practicability of the device is greatly improved, and the cleaning efficiency of the crops is also improved.
Owner:鲁天庆

Asphalt concrete using alkaline slag regeneration micro powder as filling materials and preparation method thereof

The invention relates to asphalt concrete using alkaline slag regeneration micro powder as filling materials and a preparation method thereof. The asphalt concrete is formed by mixing the following ingredients in percentage by weight: 8 to 12 percent of alkaline slag, 0 to 2 percent of mineral powder, 50 to 54 percent of clastic rock, 10 to 12 percent of stone chips, 21 to 23 percent of sand and 4 to 6 percent of asphalt, and the total percent is 100 percent. The method comprises the steps of material pretreatment, material preparation, material stirring and asphalt concrete forming. The industrial alkaline slag micro powder is used as asphalt concrete regeneration filling materials; the bonding force of the asphalt concrete can be effectively improved, so that the intensity of the asphalt concrete can be improved; the anti-peeling performance is improved; the stability flowing value is superior to that of ordinary asphalt concrete; the stability degree of the asphalt concrete can be greatly improved; the resource utilization of the industrial solid waste slag can be realized.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY +1

Reinforcing method for loose coal pillar body corrosion-resistant interchange roadway

The invention discloses a reinforcing method for a loose coal pillar body anti-corrosion interchange roadway. The method comprises the following steps of arranging an I-shaped steel beam support on a top plate of a lower roadway, hoisting by using three anchor cables, and lifting the I-shaped steel beam support by using an I-shaped steel shed at the same time, wherein the length of the portion, positioned on the I-shaped steel beam support of the lower roadway, of each anchor cable is greater than the thickness of a coal pillar to be protected; spouting on the top plate of the lower roadway; and constructing an upper roadway, specifically, when passing through an interchange area, installing an I-shaped steel beam support on an exposed portion of each anchor cable, using an iron drainage pipe to replace a cement ditch, laying a waterproof material on the upper part of the I-shaped steel beam support, and pouring. The method is suitable for supporting when an extra-thick coal seam mine roadway which is deeply buried 800 m or more below the underground and exceeds 9 m passes through an interchange; and two sides of a coal pillar body are protected through the upper and lower roadways, and meanwhile, through pouring, closure and the like, the upper portion effectively prevents waste water on a working face from flowing into a coal pillar, so that the stability and the integrity of the coal pillar body are effectively ensured.
Owner:SHANDONG XINJULONG ENERGY

Preparation method of battery zinc negative electrode material

The invention relates to the field of batteries, particularly to a preparation method of a battery zinc negative electrode material. The method comprises the following steps: (1) loading carbon and silicon on the surface of nano-zinc oxide, (2) shaping the nano-zinc oxide, (3) cementing a zinc material at normal temperature, (4) carrying out surface modification to aggregate metal ions, and (5) molding the material. According to the invention, generation of dendrites in electrode work can be slowed down, dendrites on the surface of the zinc negative electrode can fall off easily, aggregation of the dendrites is prevented from reducing the electric energy conversion efficiency of the battery, and the battery made of the zinc negative electrode material is stable in discharge and high in current conversion efficiency.
Owner:ZHEJIANG WELLY ENERGY CORP

Repairing method for surface cavitation damage of hydropower station water retaining dam sand washing bottom hole working gate

InactiveCN104790357AFlat surfaceWhole body intactBarrages/weirsFlood seasonEngineering
The invention discloses a repairing method for surface cavitation damage of a hydropower station water retaining dam sand washing bottom hole working gate. A material A made of epoxy resin and a curing agent and a material B made of NE-II type granulated sand are involved, the cavitation damage portion of a gate leaf is coated with the material A and then coated with the material B after being baked, and after the steps are completed, and the treated cavitation damage portion is naturally cured until a coating is thoroughly cured. The method is tried out on a steel lining of a hydropower station sand washing bottom hole side wall, after being subjected to high-speed silt-carrying water flow scour during the flood season for three years, the surface of the coating is still flat, and the coating is high in integrity and high in degree of adhesion to the surface of a metal structure and effectively prevent cavitation damage to the surface of the metal structure in a hydropower station. Compared with the prior art, the repairing method is low in technical requirement, simple in process, low in cost and worthy of popularization, and time consumption is reduced.
Owner:CHN ENERGY DADU RIVER REPAIR & INSTALLATION CO LTD

Cutting-free waterproof type rapid splitter and implementation method thereof

The invention relates to a cutting-free waterproof type rapid splitter for cable splitting. A conductor is placed on a lower mould; a main cable cutting hole and at least one branch cable conductor are lapped in a U-shaped cable clamping hole in the upper end of the conductor; two right-angled hooks I of a locking piece are respectively in butt joint with any one of two saw-tooth shaped hooks II of the lower mould; a middle bugle of the locking piece tightly contacts the conductor part in the main cable cutting hole in the U-shaped cable clamping hole of the conductor and the branch cable conductor with skin stripped off; an upper cover is in threaded connection with outer threads of the lower mould by inner threads, so that a circular sheet body of the lower mould is sunken into the upper cover to form a sunken part; finally, the sunken part is filled with insulating waterproof glue. The cutting-free waterproof type rapid splitter disclosed by the invention has the effects that cable splitting can be realized without cutting a main cable, so that the cable length consumption can be lowered while the cable integrity is guaranteed and no fault points exist; a completely independent sealed space is formed, so that intrusion of moisture, water, oil and corrosive liquid can be inhibited; the cutting-free waterproof type rapid splitter for cable splitting is quick to install, so that working hours are effectively saved.
Owner:王东

Treatment of carpal tunnel syndrome by injection of the flexor retinaculum

InactiveUS20140193394A1Altered stiffnessReduce pressureOrganic active ingredientsPeptide/protein ingredientsFlexor digitorum brevis muscleCTS - Carpal tunnel syndrome
An apparatus and method for identifying the flexor retinaculum of the carpal tunnel, injecting an effective amount of an agent into at least a portion of flexor retinaculum or tissue adjacent thereto, wherein the agent is configured to weaken the flexor retinaculum. The system may further include means for increasing the tensile stress in the flexor retinaculum post-injection using hand exercises, thereby weakening its structural integrity and decreasing the pressure within the carpal tunnel that impairs median nerve function.
Owner:JOHN M AGEE & KAREN K AGEE TRUSTEES OF THE JOHN M AGEE TRUST

Preparation method of anti-static silicone rubber O-shaped ring

The invention provides a preparation method of an anti-static silicone rubber O-shaped ring. The method sequentially comprises the following steps: S1, mixing, namely adding 100 parts by mass of methyl vinyl silicone rubber, 3-10 parts by mass of conductive carbon black, 10-15 parts by mass of wear-resistant carbon black, 5-8 parts by mass of iron oxide powder and 2-4 parts by mass of antistatic non-woven fabric fragments into an internal mixer, and mixing for 30 minutes at the temperature of 50-80 DEG C to obtain a rubber compound; and s2, performing forming vulcanization. Two conductive fillers of the conductive carbon black and the iron oxide powder are added into raw materials of a traditional silicone rubber O-shaped ring; and the filling amount of the filler reaches a threshold value, and the volume resistivity and the surface resistivity of the polymer are rapidly reduced, so that the O-shaped ring can simultaneously depend on volume conduction and surface conduction to carry out electrostatic dissipation, and an anti-static effect is achieved.
Owner:宁国天运橡塑制品有限公司

System for shell fabric printing and dyeing

The invention belongs to the technical field of printing and dyeing system, and particularly relates to a system for shell fabric printing and dyeing. The system for shell fabric printing and dyeing includes a detecting module, an analyzing module, an executive module and a logging module. The detecting module includes a shell fabric detecting unit, the shell fabric detecting unit includes a breakage detecting unit, and the breakage detecting unit includes an infrared scanning element and a tension sensing element; the analyzing module includes a cloth material analyzing assembly, and the cloth material analyzing assembly includes a breakage analyzing assembly, a material texture analyzing assembly and a marking assembly; and the executive module includes a shell fabric printing and dyeingunit and a recycling unit, and the shell fabric printing and dyeing unit includes a mark skipping assembly, a printing and dyeing assembly and an intercepting assembly. According to the system for shell fabric printing and dyeing, printing and dyeing on marked positions are skipped through the mark skipping assembly, intercepted shell fabrics are sent to the recycling unit to be recycled, thus recycle of waste materials is achieved, the production cost is lowered, and wasting of resources is reduced.
Owner:山东圣梵尼服饰股份有限公司

Method for correcting overall torsional deformation of beam section of steel box girder

The invention discloses a method for correcting overall torsional deformation of a steel box girder beam section, which comprises the following steps that: a, the plane and elevation arrangement of a fixed support are determined, the beam section is placed and a fixed end and a correction end are determined; b, a bridge deck slab and a U-shaped rib are cut from the midpoint of the first section in the transverse direction; c, a web is cut in the vertical direction, and welding seams of the web and the bottom plate are cut in the longitudinal direction; and d, the fixed end is restrained, forced displacement is applied to the correction end, the maximum distance between the web and the bottom plate at the cut position and whether the correction end supporting point makes contact with the fixed support or not are observed, and the steps b to d are repeated at the next section till the correction end supporting point makes contact with the fixed support. According to the method, the problem that torsional deformation of the large-span steel box girder bridge is difficult to correct is effectively solved, residual strain generated by deformation correction is reduced, re-machining and re-manufacturing are avoided, the construction period is shortened, and the cost is reduced.
Owner:四川一宇钢结构工程有限公司 +1

Anti-puncture anti-explosion special tire

The invention discloses an anti-puncture anti-explosion special tire. The anti-puncture anti-explosion special tire comprises a tread layer, a tread primer layer, a belted layer, a metal chain plate strip layer and a tire body, which are sequentially connected from a crown to the tire body in the radial direction of the tire; the center in the width direction of the metal chain plate strip layer is superposed with the center in the width direction of the crown, the metal chain plate strip layer is 30-60mm narrower than the crown, and the tread primer layer extends downwards to be under a tire shoulder and axially extends inwards from two sides of the tire shoulder to be connected with the belted layer so that the metal chain plate strip layer is embedded between the belted layer and the tire body. According to the anti-puncture anti-explosion special tire, as the metal chain plate strip layer is embedded between the belted layer and the tire body, the tread primer layer and the belted layer can well bind the metal chain plate strip layer, so that the belted layer, the tire body and the metal chain plate strip layer have good integrity, the possibility of displacement of the metal chain plate strip layer is reduced and the heating amount is low; and besides, the anti-puncture performance of the tire is effectively improved, the probability of tire burst is reduced, and the service life, the safety and the reliability of the tire are improved.
Owner:HUNAN ZHONGMAN TIRE TECH CO LTD

Concrete filled steel tubular column, H-shaped steel beam, steel support and pi type connecting piece combined center column bottom joint and making method

The invention discloses a concrete filled steel tubular column, H-shaped steel beam, steel support and pi type connecting piece combined center column bottom joint and a making method. The joint mainly comprises a light square steel tube recycled concrete column, H-shaped steel beams, a pi type connecting piece, web connecting plates, high-strength bolts, steel supports, I-shaped bench binding steel bars, slab column binding steel bars and a prefabricated recycled concrete floor. Compared with the prior art, the joint is simple in structure and convenient to construct, and has a clear force transferring route and two seismic fortification lines. The novel structures such as the pi type connecting piece, the bench binding steel bars and the slab column binding steel bars are creatively proposed, and integrality of slab-column-joint domain is enhanced; bending resistance, pressure resistance and stability of the joint are effectively improved; reliability of the steel support and the pitype joint connecting structure is further ensured; and the joint is firm in beam-column-support-floor connection, high in integrality and excellent in seismic performance and the key technological support is provided for engineering design of a prefabricated green housing light steel combined structure.
Owner:BEIJING UNIV OF TECH

Plastic mechanical sealing and cutting equipment

The invention discloses plastic mechanical sealing and cutting equipment, in particular to the technical field of mechanical sealing and cutting. The plastic mechanical sealing and cutting equipment comprises a first side plate and a second side plate. The second side plate is arranged on one side of the first side plate. A cross beam is arranged between the first side plate and the second side plate in the horizontal direction. According to the plastic mechanical sealing and cutting equipment, due to the arrangement of a sawtooth-shaped tooth groove, a first extrusion assembly and a second extrusion assembly, the sawtooth-shaped tooth groove is formed in a cutter, a plastic film is cut by the sawtooth-shaped tooth groove on the cutter, and an original cutter form is abandoned. An action spring on a fixed block presses a pressing plate downwards, so that the plastic film is extruded and does not run during the sealing and cutting process. A specific tooth cutter form is adopted for replacement, the cutter does not need to be heated, and the energy consumption of a machine is reduced. Meanwhile, when a point contact cutting form is adopted, the abrasion amount of the cutter is smaller, and the service life of the cutter is effectively prolonged. A tooth opening of the cutter is small. A notch is flat. Compared with that of the prior art, the design is better.
Owner:南安建成机械有限公司

Prefabricated bottom plate with removable ribs and production method of laminated plate

The invention relates to a prefabricated bottom plate with removable ribs and a production method of a laminated slab. The prefabricated bottom plate comprises a concrete slab and at least two removable ribs fixed on the concrete slab, each removable rib comprises a square steel pipe filled with high-strength mortar, an embedded part and a fixing part, the square steel pipe is arranged on the surface of the concrete slab, the embedded part is anchored in the concrete slab, and the fixing part penetrates through the square steel pipe and is connected with the embedded part; and a reinforcing mesh is pre-buried in the concrete slab. The laminated slab comprises the prefabricated bottom plate and a cast-in-place layer. The production method of the laminated slab comprises the steps that S1, a side mold is arranged; S2, a reinforcing mesh and removable ribs are placed; S3, concrete is poured; S4, the prefabricated bottom plate is transported and positioned; and S5, dismantling is conducted. The prefabricated bottom plate is provided with the removable ribs, it can be effectively guaranteed that the concrete slab cannot crack or deform due to insufficient rigidity in the demolding, hoisting and transporting stages, and the prefabricated bottom plate can be detached and reused in the later stage. The production method of the laminated slab is simple in step and high in construction efficiency.
Owner:筑友智造建设科技集团有限公司
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