57results about How to "Good hanging effect" patented technology

The invention discloses an energy-saving and environmental-friendly light partition board and a preparation method thereof and relates to the technical field of partition boards. The partition board comprises the following raw materials in parts by weight: 65-70 parts of Portland cement, 40-50 parts of calcium carbonate, 32-35 parts of calcium oxide, 25-30 parts of a paraffin-kieselguhr compositephase change material, 20-24 parts of a modified carbon fiber, 10-18 parts of activated bentonite, 10-14 parts of a rubber powder, 9-10 parts of a modified loess powder, 9-10 parts of industrial solidwastes, 9-10 parts of modified fiber granules, 4-6 parts of an early strength agent, 4-6 parts of a water reduction agent, 4-6 parts of a foaming agent, 1-3 parts of a rare-earth catalyst and 75-95 parts of water. The energy-saving environmental-friendly light partition board is relatively good in pressure resistance strength, tensile strength, anti-cracking strength and hanging property, and inaddition has sound insulation and heat preservation effects.

The invention discloses light-weight anti-corrosion concrete for a light steel structure wall body and a preparation method thereof, and relates to the technical field of a building material. The light-weight anti-corrosion concrete for the light steel structure wall body is prepared from the following ingredients in parts by weight: 170 to 190 parts of ordinary Portland cement, 114 to 139 parts of fly ash, 35 to 50 parts of expanding agents, 0.5 to 1.0 part of hydroxypropyl methyl cellulose, 0.8 to 1.2 parts of redispersible powder, 8.5 to 9.5 parts of EPS particles, 3.7 to 4 parts of water reducing agents and 135 to 140 parts of water. The concrete provided by the invention has the advantages that the concrete cracking is reduced; the moisture seepage is prevented; the sulphate corrosionresistance is realized.

A pneumoperitoneum-free peritoneoscope abdominal wall suspension device comprises a hollow incision protecting sleeve with a suspension function and a splint, wherein the incision protecting sleeve with the suspension function is formed by a lifting part, a ring sleeve and a fixing part in an integrated mode from bottom to top, the incision protecting sleeve and the splint are fixedly connected through the fixing part, the incision protecting sleeve with the suspension function is made of soft material, and the thickness of the lifting part is larger than that of the ring sleeve. Preferably, the device further comprises a hollow annular supporting ring installed on the inner wall of the ring sleeve in a matched mode, the shape of the supporting ring is consistent with that of the incision protecting sleeve, and the hardness of the supporting ring is larger than that of the incision protecting sleeve; more preferably, the thickness of the portion, close to the center area, of the lifting part of the incision protecting sleeve with the suspension function is smaller than that of the edge area of the lifting part; the abdominal wall below an operation incision can be supported by using the device, not only are unnecessary injuries to the abdominal wall avoided, but also an operation view is good, meanwhile, the pneumoperitoneum-free peritoneoscope abdominal wall suspension device is simple in structure and convenient to operate, pneumoperitoneum-free peritoneoscope surgery is completed by using conventional laparoscopic surgery instruments, and untoward effects caused by pneumoperitoneum are avoided.

Water-based intumescent fireproofing formulations are provided that exhibit excellent fireproofing properties while simultaneously significantly reducing and/or eliminating the potential for VOC release and exhibiting excellent hangability properties. The intumescent fireproofing formulation includes a coalescent that significantly reduces and/or eliminates the potential for VOC release and fiber constituents, e.g., fibers of greater than 0.2 mm in length. Exemplary coalescents have a boiling point of at least 180° C. and include bis(2-ethylhexanoate) triethyleneglycol and 2,2,4-trimethyl-1,3-pentanediolmono(2-methylproponate). Intumescent fireproofing formulations are also provided that include clay to further improve performance.

The invention discloses a special cementing agent for self-curing pervious concrete and application of the special cementing agent. The cementing agent comprises the following components in parts by mass: 1-5 parts of an internal curing agent, 2-6 parts of a water reducing agent, 10-30 parts of a reinforcing agent and 60-85 parts of an expanding agent, wherein the internal curing agent is any oneor more selected from the group consisting of super absorbent polymers (SAP) with particle sizes of 0.075 to 0.2 mm, 0.2 to 0.3 mm, 0.3 to 0.4 mm and 0.4 to 0.5 mm; and the SAP is any one selected from the group consisting of starch super absorbent resin, cellulose super absorbent resin and synthetic polymer super absorbent resin. All the components of the special cementing agent for the perviousconcrete disclosed by the invention have a good synergistic effect; the cementing agent absorbs excess water in the production and transportation stage, weakens a water loss condition before concretehardening, improves the slurry hanging property of slurry in transportation, slowly releases water after hardening, can provide water for a reaction of the expanding agent, achieves the dual effects of internal curing, can reduce the shrinkage of the pervious concrete, and reduces concrete cracks.

The invention discloses a preparation method of a double-faced compound warm-keeping and energy-saving wallboard. The method comprises the following steps of mixing and stirring 50-70% of bottom ash of household garbage after the household garbage is burnt to generate electricity, 5-20% of milling fine sand, 5-15% of lime and 5-20% of water by mass percentage, obtaining hard slurry, injecting the hard slurry into a panel mold, placing a corresponding wire mesh, conducting three rolling procedures, steaming by high pressure, cooling, demolding, obtaining a panel, fixing the prepared panel on the two sides of a mold, mixing and uniformly stirring 30-50% of the bottom ash of the household garbage after the household garbage is burnt to generate the electricity, 10-20% of the lime, 10-25% of the milling fine sand, 10-20% of cement, 2-4% of plaster, 0.01-0.06% of aluminum powder and 5-20% of the water by mass percentage, obtaining slurry, injecting the slurry into a wallboard mold, stewing, steaming by the high pressure, cooling, demolding, and obtaining the wallboard.

The invention relates to a high-performance heat sink based on a directional carbon nanotube thin film and a fabrication method of the heat sink. The heat sink comprises a directional carbon nanotube thin film (4) and a copper plate (5), wherein microgrooves (7) are cut in the copper plate, the directional carbon nanotube thin film (4) is laid on the copper plate (5) along a direction perpendicular to the directions of the microgrooves (7), and the directional carbon nanotube thin film (4) is in close contact with top ends of side walls of the microgrooves (7). Under the same heating power condition, the heat sink has relatively obvious low balancing temperature compared with a general pure copper heat sink.

The invention belongs to the field of building material technology, and especially relates to a lightweight composite solid wallboard and a manufacturing method thereof. The invention aims at overcoming deficiencies in the prior art, and provides the lightweight composite solid wallboard which has the advantages of lightweight, saved energy and resources, shock prevention, flame retardation and heat insulation as well as the manufacturing method thereof. The invention provides a technical scheme as follows: the lightweight composite solid wallboard is characterized in that the wallboard is composed of a first main body and a second main body whose lateral parts are connected together, wherein the first main body and the second main body are separately comprise concrete material sandwich layers which are positioned in the bodies and surface board layers which are pasted on the double sides of the concrete material sandwich layers, and the surface board layers are fiber cement board layers. The invention also provides a method for manufacturing the lightweight composite solid wallboard, and a technical scheme comprises the following steps: (1) aluminium dies are cleaned; (2) liquid for demoulding is sprayed; (3) calcium silicate boards are installed in the aluminium dies; (4) tensioning leading screws are fastened; (5) EPS particles are foamed; (6) stirring materials are added into the assembled dies; (7) moulding speed is accelerated; (8) a die vehicle is transferred to the next process; (9) the leading screw of the die vehicle which reaches the time is loosened; (10) demoulding is carried out; (12) warehousing is carried out.

The invention relates to a magnesium oxide-silicon carbide-carbon porous ceramic filter and a preparation method thereof. The method comprises the following steps: taking modified porous magnesian fine powder, modified coke pitch powder, elemental silicon powder and sodium carboxymethylcellulose as raw materials, adding a water reducing agent, a defoaming agent, aluminum sol and deionized water, and stirring to obtain ceramic slurry with thixotropy; and immersing the silicon carbide preform into the ceramic slurry with thixotropy, taking out, carrying out centrifugal treatment, curing, drying, carrying out heat preservation in a carbon burying atmosphere at 1400-1600 DEG C for 2-6 hours, and cooling to obtain the magnesium oxide-silicon carbide-carbon porous ceramic filter. The filter has the characteristics of excellent filtering effect, high strength and good thermal shock resistance; and the filter is suitable for the field of molten steel purification, and is also suitable for the field of magnesium melt and magnesium alloy melt purification.

The invention belongs to the technical field of hanging tool structures, and particularly relates to a hanging tool for welding. The hanging tool comprises a support and cross beams, and further comprises fixing grooves, compressing units, electromagnetic units and triggering units, wherein the cross beams are arranged on the support and are used for placing workpieces to be welded, the fixing grooves are formed in the upper surfaces of the cross beams and are used for placing the workpieces to be welded, the compressing units are arranged on the fixing grooves and are used for sealing and compressing the workpieces to be welded, the electromagnetic units are arranged in the cross beams and are used for driving the compressing units in a magnetic repulsion mode, and the triggering units are arranged in the cross beams and are used for communicating with the electromagnetic units in an electrified manner in a downward pushing and extruding mode. According to the hanging tool, through amode that the fixing grooves, the compressing units, the electromagnetic units and the triggering units are arranged on the cross beams, the purpose of effectively fixing the workpieces to be welded can be achieved. The hanging tool has the advantages that the compressing effect on the workpieces to be welded is flexible and effective, the hanging and fixing effect on the workpieces to be welded is good, the stability is high, and the picking and placing operation o the workpieces to be welded is convenient.

The invention relates to a height-adjustable thread hanging frame which comprises a base and a support rod. Multiple hanging rods are obliquely arranged on the support rod, the support rod is composed of an upper support rod body and a lower support rod body, the lower support rod body is provided with an outer thread, the upper support rod body is a hollow tube, an internal thread matched with the outer thread of the lower support rod body is formed in the tube of the upper support rod body, the upper support rod body is matched with the outer thread of the lower support rod body through the inner thread, the upper support rod body is connected to the lower support rod body in a screwed mode, and the support rod can be lengthened or shortened integrally through rotation; each hanging rod intersects with the support rod in a 20-45-degree angle mode, and the lower support rod body is welded to the base or fixedly connected with the base in a screwed mode through threads. According to the height-adjustable thread hanging frame, improvements are conducted on an existing thread hanging frame and are mainly characterized in that the support rod is composed of the upper support rod body and the lower support rod body, the upper support rod body is matched with the outer thread of the lower support rod body through the inner thread, the upper support rod body is connected to the lower support rod body in a screwed mode, and the support rod can be lengthened or shortened integrally through rotation.

The invention relates to the technical field of petroleum equipment, in particular to a large-diameter packer capable of hanging a screen pipe, which comprises a letting-in part and a service part detachably mounted in the letting-in part, and the letting-in part comprises a self-sealing structure, a setting mechanism and a hydraulic pushing mechanism; and the service part comprises a lifting and releasing mechanism, a starting protection mechanism and a circulating protection mechanism. According to the invention, the suspension capacity is stable, multiple operations such as seat sealing, suspension, well washing and unlocking recovery can be realized through one set of tool, and in addition, after the pipe column of the service part is lifted out, the pipe column of the well leaving part can provide a larger drift diameter.

The invention provides a post-cast strip plugging structure and a construction method thereof. The post-cast strip plugging structure comprises longitudinal steel bars, fixing steel bars, supporting steel bars, a plugging net, water-stopping steel plates and transverse steel bars; the plugging net is vertically arranged at the interface between the post-cast strip side and the plate side; the water-stopping steel plates are horizontally arranged in the middle of the plugging net and penetrate into a post-cast strip from the interior of the plate side; spaced fixing steel bars are connected tothe water-stopping steel plates perpendicular to the plate surfaces of the water-stopping steel plates; the horizontal longitudinal steel bars and the transverse steel bars are arranged at the upper ends and the lower ends of the fixing steel bars; the longitudinal steel bars and the transverse steel bars are perpendicular to each other; and the fixing steel bars, the plugging net and the water-stopping steel plates form a grid structure on the vertical surface, and one supporting steel bar is arranged between every two opposite fixing steel bars. The construction method is scientific and easyto operate, the overall combination of post-cast strip concrete is effectively improved, the occurrence of obvious cracks is avoided, and the good construction quality can be ensured.

The invention belongs to the technical field of energy, and particularly relates to a preparation method and application of a nickel-mesh-based current collector electrode slice. The preparation method comprises the following steps: (1) sequentially adding and mixing activated carbon, carbon nanotubes, graphene, CMC and SBR, and then treating by a planetary stirrer to achieve the purpose of uniform dispersion of the material, so as to obtain slurry; (2) carrying out forced air drying on the slurry to prepare an active substance precursor; (3) carrying out demulsification and paste mixing on the active substance precursor by taking absolute ethyl alcohol as a solvent to prepare paste; and (4) taking a nickel net as a current collector, putting the nickel net into a template, adding the paste, pressing into a mold, and drying. The nickel-mesh-based current collector electrode plate prepared by the method is used for manufacturing a soft package laminated supercapacitor, and the rate capability of the supercapacitor can be effectively improved.

The invention relates to an air-inflation-type cut protection casing without a pneumoperitoneum laparoscope. The casing comprises a sleeve and a supporting arm arranged on the outer wall of the sleeve. The casing is characterized in that an upper fixing ring and a lower fixing ring sleeve the outer wall of the sleeve, the supporting arm is arranged below the lower fixing ring and is a flexible supporting arm with a hollow interior, and an air inflation tube for conducting air inflation on the supporting arm is arranged on the supporting arm; a lifting and pulling part for upwards lifting and pulling the supporting arm is further arranged on the supporting arm, and the force application end of the lifting and pulling part is located above the upper fixing ring. The cut protection casing issimple in structure, convenient and safe to operate and low in manufacturing cost, after the supporting arm is subjected to air inflation, a certain area of an abdominal wall around a cut can be suspended effectively, the suspension effect of the whole abdominal wall is good, the good visual field is provided for the surgery, a laparoscope surgical instrument enters the abdominal cavity in the cutthrough the central space of the casing, and the injury to the abdominal wall of a patient during surgery is reduced to the greatest limit.

The invention discloses a ground fine sand ceramsite concrete, and belongs to the field of industrial material preparation. According to the formula of the ground fine sand ceramsite concrete, ground fine sand with a specific content is introduced to serve as a filling agent, meanwhile, the calcium-silicon ratio in cement, coal ash and the ground fine sand in the formula is preferably limited, and the strength of the product can be effectively and rapidly improved after calcium oxide and silicon dioxide in the concrete raw materials react; and the formula is low in overall cost and small in volume weight, and the problems that an existing product is large in volume weight, low in strength, easy to break, high in installation difficulty and risk and the like can be solved when the formula is used for preparing the light partition board. The invention further provides a light partition board prepared from the ground fine sand ceramsite concrete. The light partition board is small in volume weight and high in strength, the installation and use cost of the product can be effectively reduced, and the mechanical property of the light partition board is far better than that of an existing product. The invention also provides a preparation method of the ground fine sand ceramsite concrete and a preparation method of the light partition board.

The invention belongs to the technical field of construction materials, and particularly relates to mortar. The mortar comprises the following raw materials in parts by weight: 600-800 parts of sandsin the second zone or sands in the third zone, 180-300 parts of cement and 0.03-0.05 part of cellulose ether. The mortar has stable quality, wide application, has the advantages of sagging resistance,cracking resistance and hollow prevention, has excellent moisture retention, and can be used for reinforcing the synergistic effect.