40results about How to "Material economy" patented technology

A spring mattress with longitudinal strings comprising a plurality of interconnected coil springs (1) enclosed in covers (2) is described, wherein a plurality of such parallel strings are arranged side by side and interconnected by surface attachment between abutting surfaces. Furthermore, a slit is provided between at least two springs located adjacent to one another within the same string, which slit allows an increased interjacent separation distance (SA) to be formed between, said adjacent springs. Also described are a method and a device, respectively, for manufacturing a corresponding mattress.

The invention relates to a passivation solution suitable for processing the aluminum foil of an aluminum-plastic film. The passivation solution comprises, by weight, 100 parts of distilled water, 0.1-5.0 parts of phosphoric acid or phosphate compound, 0.2-8.0 parts of trivalent chromium compound, 0.01-2.0 parts of zirconium compound, 0.01-8.0 parts of fluoride, 0.1-30 parts of acrylic resin, 0.01-6.0 parts of crosslinking agent, 0-1.0 part of auxiliary and a certain amount of pH regulator. 8021 aluminum foil processed by the passivation solution has excellent corrosion resistance, and the processed aluminum foil combined with CPP through modified polyolefin-based glue has excellent binding force, electrolyte resistance and water resistance.

The invention relates to a high cutting slope advanced supporting construction method which is characterized in that: before digging a high cutting slope, an advanced supporting pile is dug and constructed firstly, polystyrene foam carpet material with a certain thickness is arranged above the digging surface of the backing side of the advanced supporting pile, and then a pile body concrete is poured, so as to form a novel structure of the advanced supporting pile with the polystyrene foam material, after the advanced supporting structure has 70 percent of intensity, the high cutting slope is dug; by adopting the self deformation of the polystyrene foam material (EPS), the soil pressure on the advanced supporting pile is reduced and the section size and reinforcing bars of the advanced supporting pile are optimized, thereby greatly reducing the construction investment of the high cutting slope advanced supporting structure and ensuring the whole stability and construction safety of the high cutting slope.

The invention provides an automatic temperature control fan with the thermal expansion and contraction principle. The automatic temperature control fan is composed of a mounting frame, a glass test tube, a moving piston, a positive electrode metal sheet, a negative electrode metal sheet, a small direct-current motor, fan impellers, a rechargeable battery and a solar cell panel, wherein lubricatinggrease coats the moving piston, the positive electrode metal sheet moves up and down along with the piston, the position of a fixed negative electrode metal sheet are fixedly arranged on a negative metal sheet mounting frame, the positive electrode metal sheet and fixed negative electrode metal sheet are used as an automatic switch. According to the fan, the property that gas heat expansion and cold contraction is utilized, the moving piston moves up and down, so that the positive electrode metal sheet and the negative electrode metal sheet are enabled to be combined or separated to realize automatic connection or disconnection of the power supply circuit of the small direct-current motor and the design of the automatic temperature-controlled fan; and the structure is simple and economic,the electric energy supply is green and environment-friendly.

The invention discloses a green environment-friendly comprehensive management method for high-steep loess landslide. The green environment-friendly comprehensive management method comprises the following steps: carrying out step-by-step cutting on the slope side of a high-steep loess landslide body; leveling the steps of each stage and backfilling reinforced soil on the steps of each stage; filling soil and covering after the reinforced soil is backfilled; pumping soil nails into the reinforced soil; driving a pile foundation into the bottom end of the backfilled reinforced soil at the front edge of the bottom of the high-steep loess landslide; then arranging an anti-slip retaining wall on the outer side of the backfilling reinforced soil; arranging vertical drainage pipes in a slope body;arranging horizontal drainage pipes at the top of the slope body, at the steps of each stage and at the bottom of the slope body; screening, fertilizing and shotcreting the slope side. The comprehensive prevention and control method disclosed by the invention has the advantages that the stress in the slope can be well dispersed and plastic failure is avoided; a perfect drainage system ensures thedrainage of the whole side slope and avoids the effect of rainfall infiltration on the stability of the side slope; in addition, the method disclosed by the invention is a green construction method,and has the advantages of economical raw materials, convenience in construction and suitability for wide application in high-steep landslide treatment in loess areas.

The invention discloses a cable for ship hydrophone equipment and a manufacturing method thereof, which belong to the field of cables, wherein a cable core is formed by intertwisting four insulated wire cores in a star shaped disposition, and the pitch diameter ratio for intertwisting is 8 to 10; each insulated wire core comprises a core wire conductor in the center; each core wire conductor is formed by intertwisting 16 tinned copper wire bundles with a diameter of 0.15mm to 0.20mm and a single wire elongation at break of 15% to 20%, and the pitch diameter ratio for intertwisting is 8 to 11; the peripheries of the core wire conductors are wrapped with insulating layers in an extrusion way, and the thickness of each insulating layer is 0.60 to 0.62mm; the insulating layers of two of the insulated wire cores, which are opposite to each other, are wrapped with shielding layers, and each shielding layer is formed by weaving the tinned copper wires with a single wire diameter of 0.12 to 0.14mm, and the weaving density is 90% to 95%; the shielding layers are externally lapped with insulated tape lapped layers, and a packing layer which makes the cable core round and complete is arranged on the periphery of the cable core; and the periphery of the packing layer is wrapped with an outer sheath in an extrusion way, and the outer sheath is made from chlorosulfonated polyethylene with a thickness of 1.2 to 1.4mm. The cable has advantages of fine insulating property, long service life and capability of meeting the operational requirements of the ship hydrophone equipment.

The invention discloses a ship underwater sonar transducer cable of the cable field and a manufacturing method of the cable. A cable core is formed by inter-stranding two shielding insulated cores with a stranding pitch diameter ratio of 10-12. The shielding insulated core includes a core conductor which is arranged in the center of the shielding insulated core. The core conductor is formed by inter-stranding a plurality of tinned copper wire bundles which have a diameter of 0.3 mm-0.35 mm, a single fiber elongation at break of 15%-20%, and a stranding pitch diameter ratio of 8-11. A rubber insulating layer having a thickness of 0.8-0.9 mm is extruded around the core conductor, and the maximum thickness of the same cross section is not larger than 1.25 times the minimum thickness. The rubber insulating layer is peripherally coated with a shielding layer. The cable core is peripherally extruded with an inner sheath and an outer sheath. The cable is good in waterproofness and insulatibity, has a long service lifetime, and is able to work underwater for a long time.

The invention relates to a method for preparing medical cow neck vein valve tube, wherein it uses glutaral composite to be twisted and combined with glutaral. The invention has better organism compatibility and low cost.

The invention relates to a preparation method and application of a novel modified egg white cell culture scaffold material. The method includes: step one, adding genipin into sterile ultrapure water, stirring, oscillating ultrasonically and completely, thoroughly dissolving at 25-40 DEG C, adding 0.2ml of the genipin solution into a reaction vessel containing 2ml of fresh egg white, and well mixing; step two, putting the egg white with the genipin serving as a crosslinking agent into a thermostat to realize complete crosslinking; step three, using a pipette for dripping a modified egg white cell culture scaffold material obtained at the step two into a PBS solution drop by drop to guarantee immersion of materials without overflowing, standing for more than 12 hours to remove surplus genipin molecules, and repeating for several times; step four, putting a modified egg white cell culture scaffold material obtained after reaction on a cell clean bench, and performing ultraviolet radiation for sterilization to obtain the novel modified egg white cell culture scaffold material. The hardness gradient of the novel modified egg white cell culture scaffold material is easy to control, and safety and avoidance of toxic and side effects are realized.

The invention provides a clamping slot type electric flux fixture, and particularly relates to a clamping slot type electric flux fixture developed based on a concrete electric flux experiment. According to the clamping slot type electric flux fixture, the sealing between the fixture and a test piece can be realized more conveniently, and the conditions that the fixture leaks a solution due to poor sealing property can be reduced. The clamping slot type electric flux fixture comprises three parts, namely a fixture main body, a clamping slot and a bolt, wherein the fixture main body comprises a positive electrode jig, a negative electrode jig, a positive electrode, a negative electrode, a copper gauze, an infusion inlet, a rubber ring and a clamping slot port. The clamping slot type electric flux fixture, disclosed by the invention, has the advantages of convenience, quickness and the like, and provides convenience for researching electric flux of concrete; according to the clamping slot type electric flux fixture, the sealing between a test trough and the test piece can be better realized more conveniently, and the difficulty of an electric flux test is reduced.

The invention discloses a reinforced structure for a coupling beam of reinforced concrete, comprising a coupling beam, a steel plate and shear walls at the two ends of the coupling beam, wherein the steel plate is set along the vertical side of the coupling beam and connected with the shear walls by a first fastening connection piece; the reinforced structure further comprises a buckling constraint frame; the vertical side frames a the two sides of the buckling constraint frame are respectively connected with the steel plate located o the shear walls at the two sides of the coupling beam by a second fixing connection piece. The vertical side frame extends the upper and lower ends of the steel plate and connected with the corresponding shear wall by the second fastening connection piece; and the intersection of the buckling constraint frame and the steel plate is levelly provided with circular holes. The steel plate and buckling constraint frame in the invention are designed and processed ahead of time with high prefabricating degree, and the field majors in assembly. The buckling constraint frame is adopted, so that the steel plate can develop the strength effectively and improve the shock resistance of the coupling beam. When bending the constraint steel plate, the rigidity of the increased coupling beam is avoided by setting level long circular hole, and the reinforced structure is beneficial for earthquake resistant design requirement.

The invention provides a self-adhesive and self-heating bag and a preparation method thereof. The self-heating bag consists of contents and a bag body, wherein the bottom layer of the bag body is provided with an airproof plastic composite film layer and a layer of tearable adhesive sticker paper; the surface layer of the bag body is provided with a non-woven fabric composite film with certain air permeability; and the contents are iron powder, activated carbon, aluminum powder, calcium chloride, diatomite, zeolite and water. The temperature of the self-adhesive and self-heating bag can be quickly increased after the adhesive sticker paper is torn, and can be kept between 40 and 50 DEG C. The self-adhesive and self-heating bag has the advantages of over 12 hours heat dissipation time and no toxicity of safe raw materials to human bodies.

The invention discloses a novel composite diaphragm wall structure under the low clearance and a construction method of the novel composite diaphragm wall structure. A diaphragm wall frameworkis assembled and formed by directly connecting fiber reinforced polymer (FRP) bars and ordinary steel bars in a groove of a diaphragm wall, the fiber reinforced polymer (FRP) bars are arranged longitudinallyinto two rows to be used as vertical longitudinal bars along a wall body of the diaphragm wall, and the corresponding row, close to the excavation side of a foundation pit, of the vertical longitudinal bars are fiber reinforced polymer (FRP) prestressed bars; the diaphragm wall framework is directly arranged in the ground of the diaphragm wall after continuous pultrusion molding through the fiberreinforced polymer (FRP) bars, no lifting and splicing is required, and the diaphragm wall framework is not limited by the clearance. According to the novel composite diaphragm wall structure under the low clearance and the construction method of the novel composite diaphragm wall structure, a prestressed technology is applied, the flexural rigidity of the composite diaphragm wall is automaticallyadjusted and lifted while the tensile strength of the flexible fiber reinforced polymer (FRP) bars is fully utilized, and thus load-bearing performance of thediaphragm wall can meet the force suffering requirements under different working conditions; and in addition, the diaphragm wall framework formed by combining the flexible fiber reinforced polymer (FRP) bars and the ordinary steel bars can automatically adapt to the groove size of the diaphragm wall anddeal with the special adverse conditions such as irregular groove walls, the load-bearing capacity is higher, materials are more economical, and construction is more convenient.

The invention discloses acid and alkali corrosion resisting electric adhesive tape and a preparation method thereof. The adhesive tape is composed of a base layer and an adhesive layer. The adhesive layer is prepared from, by weight, 35-40 parts of high styrene rubber, 35-40 parts of polyacrylate rubber, 25-35 parts of styrene-butadiene copolymer, 20-25 parts of benzyl salicylate, 20-25 parts of hexamethylene diisocyanate, 20-25 parts of dioctyl phthalate, 15-25 parts of polyimide, 10-15 parts of activated carbon, 8-10 parts of copper sulfate, 8-10 parts of zeolite powder, 2-5 parts of anthracene oil, 2-5 parts of plasticizer and 1-3 parts of antioxidant. Accordingly, the prepared insulated adhesive tape has the good corrosion resistance. In addition, the invention further discloses the preparation method of the acid and alkali corrosion resisting electric adhesive tape.

The invention discloses hyaluronic acid baicalein iron nanoparticles and a preparation method thereof. According to the hyaluronic acid baicalein iron nanoparticles provided by the invention, baicalein is used as a basic raw material, and a one-pot method is adopted to synthesize the novel active targeting photo-thermal nanoparticles with high drug loading capacity and uniform size. An in-vitro photo-thermal experiment proves that the hyaluronic acid baicalein iron nanoparticles have excellent photo-thermal performance. A cell experiment proves that the hyaluronic acid baicalein iron nanoparticles have a remarkable tumor inhibition effect and are expected to be combined with photothermal therapy and chemotherapy to be used for tumor treatment. The hyaluronic acid baicalein iron nanoparticles are simple in process and high in repeatability, do not use toxic organic reagents and surfactants, and have high operability and wide application prospects.

The invention discloses a long and short yielding anchor rod type combined control method suitable for large deformation of a soft rock tunnel. The method comprises the steps of upper step construction of the soft rock tunnel and lower step construction of the soft rock tunnel. According to the method, after tunnel excavation is completed, guniting treatment is carried out on a surrounding rock in time, the exposure time of the surrounding rock is shortened, then installation of a reinforcing mesh and yielding anchor rods are carried out, the yielding anchor rods are arranged in two times, setting of a primary support steel frame is carried out, and finally a layer of concrete is sprayed again; and releasing can be carried out on the internal energy of the surrounding rock in a deformation mode, firstly, the force acts on the yielding anchor rods, when the supporting force provided by the yielding anchor rods and a steel arch is equal to the deformation force of the surrounding rock, the deformation of the surrounding rock stops, at the moment, a primary supporting system composed of the yielding anchor rods and the steel arch is in a relative balance state, the rigid-flexible combined supporting effect is formed, engineering accidents caused by large deformation are avoided, and the method has the advantages of being good in surrounding rock supporting effect, simple in supporting structure and economical in material consumption.