42 results about "Mould removal" patented technology

The invention discloses a formula of a ceramic aggregate aerated concrete brick and a method for making the concrete brick. The compositions in portion by weight of the concrete brick are: 12 to 26 portions of cement, 26 to 46 portions of fly ash, 16 to 28 portions of ceramic aggregate, 2 to 6 portions of slag, 2 to 6 portions of cinder, 16 to 26 portions of water and 2 portions of addition agent, wherein the concrete matters in percentage by weight of the addition agent are: 10 to 18 percent of aluminum powder (a foaming agent), 20 to 45 percent of polycarboxylate (a water reducing agent), 15 to 35 percent of 1122 fly ash excitant and 20 to 50 percent of coagulant hardening accelerator in which calcium chloride and sodium sulfate compounds respectively occupies 50 percent. The concrete steps for making the ceramic aggregate aerated concrete brick are as follows: raw materials are weighed; the weighed raw materials are placed in a stirring machine to carry out stirring and mixing in advance; an addition agent is added in the stirring machine to carry out full stirring; a brick die is prepared, and stirred raw materials are cast in the brick die; initial set and forming are carried out; stripping is carried out; a water-proofing agent is sprinkled on a stripped brick; and natural curing is carried out. Moreover, the obtained brick has light dead weight, low density, high strength, low water absorption rate and excellent sound insulation performance and heat-shielding performance.

The invention discloses a method for maintaining high-performance concrete under a severe environment, comprising the following steps of: after concrete pouring is completed, immediately covering a rubber and plastic plate or a geotextile or reserving a space on the top end of a template after the top surface of the concrete or the surface of concrete exposed to the air is closed, and watering in the space for maintenance; when the strength of the poured concrete achieves the requirements for mould removal and the central temperature of the concrete starts to be reduced, carrying out the mould removal; packing heat-preserving and moisture-preserving materials for the maintenance during the mould removal; and maintaining in the way of double packing with a heat-preserving and moisture-preserving material in the maintaining process.

The invention discloses an adsorbing and sterilizing material, and particularly discloses an adsorbing material for air purification. The adsorbing and sterilizing material contains the following ingredients: zinc oxide, montmorillonite and activated carbon. According to the material for air purification, a composition formed by mixing the montmorillonite, the zinc oxide and the activated carbon has a large porosity, moreover, the three ingredients respectively have pertinence adsorption performance for toxic and harmful substances, and the respective selective adsorption characteristics of the three ingredients are utilized to mutually enhance the adsorption effect so that the toxic and harmful substances can be hidden nowhere. More importantly, after the montmorillonite, the zinc oxide and the activated carbon are mixed, the bulk density is decreased, the weight of adsorption material with the monomer size is relatively light, the weight of the air purifier is greatly reduced, and the air purifier is more conveniently used. The specific surface area of the activated carbon, the montmorillonite and the zinc oxide is large, the absorbability to harmful gas, bacteria and mould is good, and the sterilization, mould removal and detoxification effect is good.

The invention provides a moulded plastic connector in which the mould is not weakened, and in which terminal fittings are not exposed. Portions of a side of a retainer attachment hole 13, which are opposite an insertion hole 14 for a retainer 20, are open to form mould removing holes 15, the remaining portion being covered by a wall 16. This wall 16 reduces the degree to which terminal fittings 19 are exposed from the interior of a housing 10. When a connector C is to be moulded, anterior ends of a first mould 30 (which is removed from the housing 10 via the insertion hole 14) and a second mould 40 (which is removed via the mould removing holes 15) fit together within the retainer attachment hole 13 in a doubled-over manner in a direction which intersects with the direction of mould removal. Consequently, the strength of the moulds 30 and 40 is not decreased.

The invention discloses a hollow floor construction method using an opening composite core mold. The composite core mold consists of a latticed framework, a face layer and at least three foot supporters, wherein the face layer and the framework jointly define a geometric body; the geometric body is hollow; an opening is formed in the bottom of the geometric body; and the foot supporters are positioned at the lower side of the opening and are exposed out of the face layer. The method has the critical steps that after the opening composite core mold is put in a gap position between ribs according to design requirements, concrete is cast for the first time to reach the opening position of the opening composite core mold, and vibration maintenance is performed; and then, the concrete is cast for the second time until the whole of the latticed ribs and cavity components is covered, and then, maintenance and mould removal are performed to form a cast-in-place concrete hollow floor. Compared with a conventional cavity construction process with the defects of complicated process and great construction difficulty, the hollow floor construction method provided by the invention has the advantages that the construction period can be effectively shortened; the construction difficulty is reduced; the labor cost is greatly reduced; and the transportation and storage of products are convenient.

The invention discloses a method for cutting a foaming cement board by means of a wet process. The method comprises the following steps: (1) mixing and stirring cement, pulverized fuel ash, reinforced fibers and an additive with water according to the proportion and performing mould pouring, foaming and standing to prepare the foaming cement board; (2) maintaining the foaming cement board for 20-30 minutes, performing mould removal and cutting the foaming cement board into required foaming cement boards with various specifications through a cutting device; and (3) performing surface treatment, package and film coating maintenance of the cut foaming cement boards for 14 days. When the strength of the foaming cement boards is low, the wet process cutting is performed, the amount of dust produced in the cutting process is reduced, the cutting efficiency is improved, and the product quality is improved greatly. The problems that large amount of hydration heat is produced in the foaming process of the foaming cement boards, caused cracks do not easily disperse, cutting size deviation is large when the strength of the foaming cement boards is high, and the like are solved. Accordingly, phenomena including leakage, cracks and the like of a foaming cement board outer wall external thermal insulation system caused by self size deviation, the cracks and other problems of the foaming cement boards are avoided.

The invention discloses a thermal insulation antibacterial coating for an external wall, which is prepared by stirring the following raw materials by weight ratio: 45 to 60 parts of acrylic ester resin, 15 to 25 parts of polyvinyl alcohol, 44 parts of nanometer titanium dioxide, 25 parts of nanometer copper powder, 6 parts of leveling agent, 15 parts of nanometer silicon dioxide, 6 to 9 parts of silica acid aluminum powder, 12 to 15 parts of ethylene glycol, 10 parts of nanometer silicon dioxide, 8 parts of mildew-proof agent, 5 parts of calcium carbonate, 6 parts of cementing agent, 3 parts of antifoaming agent, 3 parts of modifier and 35 to 45 parts of water. The product has low heat conductivity and has the characteristics of good water-proof heat preservation, no-forming, no-cracking, good adhesive force, contamination resistance, cracking resistance and effectively mould removal.

The invention relates to a pipe gallery pipe horizontal sliding transportation device. An underground comprehensive pipe gallery top plate template is installed; a straight thread sleeve pre-buried position line is given out according to a monorail crane burying piece position map designed in advance; a straight thread sleeve is pre-buried on a bottom board according to the straight thread sleeve pre-buried position line; the lower end of the straight thread sleeve is sealed and blocked; the end portion of the outer end of the straight thread sleeve is glued to the upper surface of the top plate template; concrete is poured, and the top plate template is detached after the concrete reaches mould removal strength; a monorail crane rail is installed through a bolt; and the monorail crane rail is provided with a monorail crane. According to a pipe gallery pipe horizontal sliding transportation method, the thread sleeve is pre-buried to fabricate the detachable sliding rail for transporting pipes; the thread sleeve is pre-buried in a floor, then the bolt for the rail is installed on a top plate, and next the electric monorail crane is adopted for pipe transportation, so that a great amount of manpower is saved, personnel health is guaranteed, pipe transportation and installation efficiency is improved, and the construction coat is lowered.

The invention discloses a manufacture method for a random micro-fissure rock mass physical model, and belongs to the technical field of geotechnical engineering. The manufacture method comprises the following steps that: firstly, preparing first mortar and a plastic film, and manufacturing a test block containing a micro-fissure; then, dipping the test block containing the micro-fissure; preparingsecond mortar which has the same mix proportion with the test block containing the micro-fissure; thirdly, evenly stirring the test block containing the micro-fissure and the second mortar, and putting mixture in a mould for forming; and finally, after initial set is carried out, carrying out mould removal, curing in a constant-temperature constant-humidity curing box, and carrying out random micro-fissure rock mass physical model forming. By use of the manufacture method, through the first mortar and the plastic film, the test block containing the micro-fissure is firstly manufactured, then,the first mortar and the second mortar with the same proportion are mixed, and therefore, the problem of uneven fissure distribution is solved since the first mortar and the second mortar are almostthe same. The amount and the geometrical shape of the fissures in the random micro-fissure rock mass are the same with the practical rock mass which needs to be simulated so as to be convenient in regulating the amount and the geometrical shape of the fissures to more conform to the fissure distribution of the practical engineering rock mass.

The invention discloses a mould removal processing method for alcoholizing expired mouldy tobacco leaves; the method comprises the following steps: filling sealed tobacco stacks with nitrogen and keeping a low-oxygen environment, wherein by filling the nitrogen, oxygen concentration in the sealed tobacco stacks finally drops to 2% and below and is kept at the level; and filling the sealed tobaccostacks with ozone to process moulding, wherein ozone concentration is 20-500ppm, and frequency of filling the ozone is gradually reduced from the first stage to the third stage, wherein the first stage is implemented at 7-10 days, the second stage lasts from the 11 day to the 20 day, and the third stage is implemented after the second stage. With the application of the method, suchproblems that wind mould appears on the surfaces of tobacco leaves in a storage and care process of the tobacco leaves and the like can be effectively solved, and flavor and smoking taste of mouldy tobacco leaves can be guaranteed; the tobacco leaves, which become to be yellow from brown, are presented in ideal color; and therefore, a using rate of the mouldy tobacco leaves is increased, and tobacco loss and economic loss, which are caused by the mouldy tobacco leaves, are reduced.

The invention discloses a low-loss nanometer touch film, which comprises the following steps of 1: dipping a base material into alcoholic solution, cleaning with distilled water after ultrasonic cleaning is carried out, and carrying out airing; 2: coating the surface of the base material with transparent indium tin oxide liquid to obtain a transparent indium tin oxide film; 3: arranging a wire mould on the upper end of the transparent indium tin oxide film, and then, pouring mixed silver paste solution to obtain a conductive network of a nanometer structure; 4: adding micro-solidification to the conductive network in the step 3 to form a conductive filament network; 5: after mould removal is carried out, carrying out heating, pressurization and repairing reaction on the conductive filament network to form a fine conductive filament network; and 6: carrying out protective film solidification on a fine conductive filament, and carrying out heating solidification to obtain the product nanometer touch film. The preparation method is simple, the problems of low flatness and evenness, big defect, high roughness and the like of the material are solved, and the low-loss nanometer touch film is prospective and has the advantage of low cost which is unsurpassable for an existing industry technology.

The invention discloses a spraying device for casting demold cleaning. The spraying device comprises a support seat, a demolding agent storage box, a base A and a base B, the base A and the base B arepositioned on left and right sides of the demolding agent storage box, a hydraulic cylinder C is connected to the upper end of the support seat, a support plate is connected with the upper end of a piston rod C of the hydraulic cylinder C, a stand column is connected with the upper end of the support plate, a connection rod is connected with an upper portion of a right side of the stand column, acasting mold is connected with the lower end of the connection rod, a feeding pump is arranged in the middle in the demolding agent storage box, a liquid inlet tube is connected with an outlet end ofthe feeding pump, an air inlet tube C is connected with one side of a middle portion of the liquid inlet tube, a high-pressure air tank C is connected with the other end of the air inlet tube C, a liquid dispenser is connected with the upper end of the liquid inlet tube, and spraying nozzles are connected onto front, rear, left, right and upper end faces of the liquid dispenser. The spraying device has the advantages that the device is reasonable in structural design and simple and convenient to operate, uniformity in spraying and thoroughness in cleaning are realized, redundant demolding agent can be collected and recycled, production cost is saved, higher spraying and curing efficiency is realized, a cleaning period is shortened, and large-scale production is benefited.

The invention discloses an assembled flame-retardant heat-insulation wall body unit for a cold storage warehouse. The assembled flame-retardant heat-insulation wall body unit for the cold storage warehouse comprises a core layer, a surface layer and support frames, wherein the surface layer covers four side surfaces of the square core layer; the two support frames are respectively embedded into the surface layer from the upper and lower bottom surfaces of the core layer and are fixed with the surface layer; the core layer is formed by inorganic fiber filling materials and inorganic fiber spray coating bonding agents through matched synchronous spray coating filling; the surface layer is jointly defined by a wall face plate and a semi-enclosure metal frame; the metal frame comprises a metal face plate, a first connecting plate and a second connecting plate; the first connecting plate and the second connecting plate are respectively arranged at the two ends of the metal face plate; and the metal frame is used for the splicing joint of adjacent wall body units for the cold storage warehouse. The invention also discloses a production method of the wall body unit. The production method has the major steps of splicing a box-shaped structure; fixing a mold; performing spray coating filling; and forming shaping and mould removal. The invention relates to the field of building, and provides the assembled flame-retardant heat-insulation wall body unit for the cold storage warehouse and a mould pressing spray coating filling production method thereof. The assembled flame-retardant heat-insulation wall body unit for the cold storage warehouse has the advantages of high integral intensity, high heat insulation performance and obviously enhanced flame-retardant performance.

A method for forming solar cells includes providing a crystalline silicon substrate which can be mono-, multi-, or poly-crystalline, the substrate being defined by a first thickness, the substrate including a first surface and a second surface, the first surface on an opposite side of the second surface. The method also includes forming a separation region within the first thickness, the separation region including hydrogen species, the separating region being substantially parallel to the first surface, the separation region defining a first portion and a second portion within the thickness. Additionally, the method includes providing a mould structure defining a support region on the first surface in which a layer of ceramic material is formed, followed by mould removal. Additionally, the method includes forming electrical devices on the first portion and packaging formed solar cells, including interconnections for solar tile applications.

The invention relates to the technical field of concrete mould, in particular to a mould structure for a precast concrete column. The mould structure for the precast concrete column is characterized in that the mould structure for the precast concrete column includes a support frame (1), top mold templates (2), side templates (6), base templates (7), middle templates (8) and base mold templates (9); and the base templates (7) are arranged on the support frame (1) side by side, the middle templates (8) is installed between each two base templates (7), the side templates (6) are installed on thebase templates (7) which are located on the edges of two sides of the support frame (1), the top mold templates (2) and the base mold templates (9) are installed at two ends of the support frame (1).The mould structure for the precast concrete column has the characteristics of rapid assembly, convenient and quick mould removal, convenient demoulding, and firm structure of the precast concrete column.

The invention provides a casting demolding cleaning and spraying device. The casting demolding cleaning and spraying device comprises an installing block. A liquid buffering cavity is designed in the installing block. A clean water connector and a demoulding liquid connector which communicate with the liquid buffering cavity are designed at the upper portion of the installing block. Liquid spraying pipes horizontally stretching out are assembled on the front face and the back face of the installing block and communicate with the liquid buffering cavity. A gas buffering cavity is designed in the lower portion of the liquid buffering cavity. An airflow connector communicating with the gas buffering cavity is further designed in the upper portion of the installing block. An air spraying pipe horizontally stretching out is further assembled on the front face and the back face of the installing block. The liquid spraying pipes and the air spraying pipe are right opposite to the inner wall of a forming cavity in a casting die. When the device works, the casting die can be rapidly cooled, a uniform film can be formed in the forming cavity through the demoling liquid, and the casting defective rate is greatly reduced. Meanwhile, the usage amount of the demolding liquid is reduced, and the production cost is reduced.

The invention relates to a co-extrusion mould capable of replacing an identification strip online, and belongs to the technical field of plastic processing. The co-extrusion mould capable of replacing the identification strip online comprises a pipe machine head body, a flow distribution shuttle, an internal mould, a mouth mould assembly, a core mould, an identification strip machine head body and the like; the right end of the pipe machine head body is fixedly connected with the mouth mould assembly; the flow distribution shuttle and the internal mould are mounted in the cavity of the mouth mould assembly in sequence from left to right; the right end of the internal mould is fixedly connected with the core mould; an identification strip rib plate (a) and an identification strip rib plate (b) of different types are embedded into the mouth mould assembly; a connecting nozzle (a) with a check valve (a) and a connecting nozzle (b) with a check valve (b) are mounted at the upper part of the mouth mould assembly; the identification machine head body is mounted at the upper parts of the connecting nozzle (a) and the connecting nozzle (b). According to the co-extrusion mould capable of replacing the identification strip online, the types of pipe identification strips can be replaced online by only opening and closing the check valves; moreover, the structure is simple; the operation is convenient; compared with original artificial mould removal, the rejection rate is reduced by 80 percent; the labour intensity is low; the production efficiency is high. The existing problems of waste of time and artificial energy consumption caused by stopping a machine and removing the mould when the identification strip is replaced are effectively solved.

The invention relates to a prefabricated part mould convenient to remove and hoist and a construction method thereof. The mould comprises a base, a mould box and a plurality of balance pins, wherein the two opposite ends of the mould box are hinged to the base through adjusting pieces, a pouring space is formed in the mould box, the mould box comprises an openable side mould located on the side, the balance pins are detachably inserted to the base, and the mould box is poured, the balance pins are inserted into the two opposite ends of the base and supported on the bottom of the mould box to limit the mould box. Before mould removal and hoisting, the plurality of balance pins are removed, the adjusting pieces are adjusted to turn the mould box around the adjusting pieces till the side mould is upward, and the prefabricated part is prevented from being damaged due to collision in the process. The mould box is directly rotated by the adjusting pieces, and the problems that in the prior art, the mould is overturned by erecting oil pressure equipment, the mould needs to be moved to the oil pressure equipment every time, and operation procedures are multiple are solved.

The invention discloses a mould segment ring (well wall) prefabrication device and a mould segment ring (well wall) prefabrication method, and belongs to the technical field of simulation experimentsof segment rings and well casings. The mould segment ring (well wall) prefabrication device is divided into a pouring device and a mould removal device; and the mould segment ring (well wall) prefabrication device has the removability integrally, and is convenient to operate. The device adopts a low-speed rotating coring method, so that the integrity and the strength of a test sample are protectedto the greatest extent. A mould segment ring (well wall) adopts the prefabrication method, prepared materials are poured into the device for pouring, after natural curing reaches the design strength,mould removal is carried out, and finally the formed segment ring (well wall) is obtained. The device is placed into a similar material of surrounding rock (a soil body), and a novel approach is provided for researching deformation, a broken mechanical mechanism and a structural mechanical characteristic of the segment ring (well wall), and an interactive relationship between the segment ring (well wall) and the surrounding rock (the soil body) in a small similar simulation experiment.

The invention relates to a jolting-compacting isolation forming mould for a building composite plate. The jolting-compacting isolation forming mould for the building composite plate comprises transverse partition plates, a forming base frame, a left vertical frame, a longitudinal vertical plate and jolting separation devices. The longitudinal vertical plate is installed at the top of the right endof the forming base frame, and the transverse partition plates are distributed on the front and rear sides of the left end of the longitudinal vertical plate correspondingly. The transverse partitionplates are matched with the longitudinal vertical plate in a sliding friction mode, and the left vertical plate is matched with the left ends of the transverse partition plates in a friction mode. The left vertical plate is mounted at the top of the left end of the forming base frame, and the jolting separation devices are mounted on the transverse partition plates. The jolting separation devicescomprise isolation plates, isolation multistage push rods, sliding connecting columns, sliding supporting columns, jolting mechanisms, separation mechanisms, position push rods and position connecting plates. The jolting-compacting isolation forming mould for the building composite plate can solve the existing problems that a partition plate mould needs to be assembled manually, the mould is difficult to assemble and disassemble, a partition plate mixture needs to be jolted and compacted manually, and after the partition plate is hardened, damage can be caused to the partition plate due to mould removal in the production of an existing polyphenyl granule partition plate.

The invention belongs to the technical field of buildings, and particularly relates to an RRP template for a building and a manufacturing method thereof. The FRP template for the building is formed bysplicing a plurality of FRP flat plates or splicing FRP flat plates and part of auxiliary materials; each FRP flat plate is formed by taking 4800TEX twistless roving with mass content being 35-45% and an alkali-free glass fiber felt with specification being 300-900g/m<2> as reinforcing materials and taking unsaturated polyester resin with viscosity being 350-750 mPa.s as a base body through a pultrusion process, wherein a forming process is mainly a pultrusion forming process and also can be other FRP forming processes such as mould-pressing forming, vacuum guide forming, hand lay-up formingand the like; and any end of each FRP flat plate is fixedly equipped with a connecting tube for connecting the adjacent FRP flat plate. The FRP template has comprehensive advantages of light mass, high strength, convenient splicing, convenient mould removal, high use and transfer time number and low cost.