49results about How to "Simple construction conditions" patented technology

The invention discloses a nano silicon dioxide modified hard wood wax oil and a preparation method thereof. The invention aims to overcome the defects of low drying speed and low hardness in the existing wood wax oil, and to be applied to furniture application instead of common wood wax oil or nitrocellulose paint/polyurethane paint. The product comprises the following raw materials in percentage by weight: 35-45% of modified hard tung oil or linseed oil, 15-25% of carnauba wax of which the softening point is 85-95 DEG C, 15-25% of linseed oil long oil alkyd of which the oil length is 78-80% and the solid content is higher than 98%, 3-5% of nano silicon dioxide of which the particle size is 60-80 nm, 20-30% of decyclized aromatic hydrocarbon of which the distillation range is 160-200 degrees, 1-2% of isooctoate compound drying agent and 0.3-0.5% of methylethylketoxime. The preparation method comprises the following steps: preparing a material A, preparing a material B, and mixing the material A and the material B.

The invention relates to a polyurethane waterproof coating material and a preparation method thereof. The polyurethane waterproof coating material is prepared from the following raw materials in partsby weight: 9.43-10.43 parts of water, 0.01-0.05 part of a PH regulator, 0.06-0.09 part of hydroxyethyl cellulose, 44-48 parts of waterborne polyurethane emulsion, 0.1-0.4 part of a preservative, 0.5-1 part of a wetting dispersant, 0.5-1 part of a defoaming agent, 2-8 parts of titanium dioxide, 2-8 parts of mica powder, 28.21-31.21 parts of barium sulfate, 0.2-0.6 part of a film forming aid, 0.8-1.1 parts of an antifreeze agent and 0.35-0.65 part of a thickener. The polyurethane waterproof coating material has the advantages of high strength and high toughness of the oil-based polyurethane waterproof coating material, simplifies the construction conditions, and has the properties of high strength, high toughness, low VOC, high environmental friendliness, easiness in construction and excellent waterproofness.

The invention relates to a water-coating-sand colorful paint and a preparation method thereof. The paint includes, by weight, 15-20 parts of a resin compound emulsion, 30-45 parts of compound powder, 3-5 parts of an additive, 30-50 parts of color sands, and 20-30 parts of water, wherein the resin compound emulsion is prepared by mixing acrylic pure acrylic emulsion and silicone acrylic emulsion. The additive includes, by weight, 0.3-0.5 parts of dodecanoate, 0.8-1.2 parts of propylene glycol, 0.2-0.4 parts of a wetting agent X-405, 0.2-0.4 parts AMP-95 neutralizing amine, 0.5-0.8 parts of an ammonium salt dispersant, 0.2-0.4 parts of a defoamer, 0.7-1 part of a DR-72 alkali swelling thickener, 1-1.2 parts of aluminum-magnesium silicate, 0.3-0.5 parts of cellulose, and 0.5-1 part of a liquid stabilizer. Compared with the prior art, the paint has good water resistance, extensibility and stain resistance, is low in preparation cost, is good in storage stability, is easy to construct and saves labor hour.

An apparatus is described for foaming a slurry made of sand, water and a hydraulic binding medium by adding a foaming agent with a cylindrical vessel (2) for receiving the slurry and an agitator (7) revolving relative to the vessel about the vessel axis. In order to provide simple constructional conditions it is proposed that the agitator (7) comprises agitating units (10) distributed over the cross section of the vessel, which agitating units each consist of a rotor parallel to the vessel axis with agitator rods (14) between retainers (12, 13) on the face side, which rods are distributed over the circumference, are parallel to the axis and can be driven in an alternating manner in opposite directions.

The invention discloses a method for rapidly adjusting segment positioning in a ship building process. The method comprises the following steps that a segment is hoisted on a supporting part, and thesegment is positioned for the first time by virtue of a crane; a plurality of rib positions are selected on the segment; a first eye plate is fixed to the selected rib position; a second eye plate anda third eye plate are fixed to the ground where the same rib position is located, and the second eye plate and the third eye plate are arranged on the two sides of the first eye plate correspondingly; the first eye plate and the second eye plate are connected in series through a connecting rod and a flower basket pull rod, and the first eye plate and the third eye plate are connected in series through a connecting rod and a flower basket pull rod; and the segment is positioned for the second time by adjusting the length of the flower basket pull rod. The method has the beneficial effects thatthe operation is simple, the using position is flexible, the application range can cover all the bottom segments, the used tool is small in size, and mounting and dismounting are quite convenient.

A structural design is proposed, comprising rear-ventilated cladding elements (1), in particular plates or boards, which can be hung in front of a supporting framework (2), in particular consisting of vertical support elements and horizontal bearing elements, wherein the cladding elements are each assigned a frame (3) which spans a rear-ventilation cross-section (4) and the upper and lower frame leg profiles (5, 6) of which have ventilation openings (8) leading to the front (7) of the cladding. In order to provide advantageous rear-ventilation conditions it is proposed that at least the upper frame leg profile interior (12) is assigned a splash guard (13) which is arranged in the manner of a labyrinth seal, adjoins the frame leg profile below the ventilation openings (8), covers the ventilation openings (8) and preferably faces with the free end thereof towards the front (7) of the cladding.

An apparatus is described for heating service water with a solar collector, comprising a service water tank (7) with a partly cylindrical jacket (8) as an absorber and an enclosure (1) which covers the service water tank (7) and forms a translucent cylindrical jacket (3), the axis of which extends parallel to the axis of the jacket (8) of the service water tank (7). In order to provide advantageous heating conditions, it is proposed that the service water tank (7) is connected in a thermally conductive manner with an absorber plate (4) forming a bottom part of the enclosure (1) and that the absorber plate (4) and the jacket (8) of the service water tank (7) are covered with a wide-meshed, thermally insulating fabric (11).

An apparatus is described for burning organic substances, comprising a horizontal combustion chamber (2) provided in a housing (1) and heat-insulated against said housing (1), and a counter-flow heat exchanger (8) which preheats the combustion air with the help of the hot exhaust gases from the combustion chamber (2) and which forms a flow duct (10) for the combustion air between the combustion chamber (2) and a heat-exchanger wall (9) enclosing the combustion chamber (2), as well as a flow duct (11) for the hot exhaust gases on the side of the heat-exchanger wall (9) averted from the combustion chamber (2). In order to provide advantageous constructional conditions it is proposed that the heat-exchanger wall (9) of the counter-flow heat exchanger (8) is provided on the outside of the heat insulation (3) of the combustion chamber (2) which comprises an upper exhaust outlet (7) opening into the housing (1), that heat exchangers (6) which extend parallel to the combustion chamber (2) are provided for the heating of a heat-transfer medium with the sensible waste heat of the hot exhaust gases in the upper interstices (4) obtained on either side of the cylindrical combustion chamber (2) between the combustion chamber (2) and the substantially prismatic housing (1), and that the exhaust-gas-receiving flow duct (11) of the counter-flow heat exchanger (8) for the exhaust gases originates from the two interstices (4), while the heat-exchanger wall (9) extends with the flow duct (10) for the combustion air into the interstices (4).

A metallic structural part is described which is joined from at least two components (1, 2), of which one component (1) comprises a hub-like nose (3) for receiving the other annular component (2) without play, which is placed on the nose (3) so as to be stopped there and is secured against axial withdrawal by a latching ring which engages in a circular latching recess (8) of one of the two components (1, 2). In order to provide simple constructional conditions it is proposed that the latching ring engaging in the latching recess (8) of the one component (1) consists of a radially projecting ring segment (7) of the other component (2) and that the radial projecting portion (r) of the ring segment (7) corresponds at most to the magnitude of the maximum elastic deformation of the ring segment (7) in the radial direction.

The invention relates to method for straightening a workpiece (1) with a longitudinal axis, wherein the workpiece (1) is bent out of a starting position transversely to the longitudinal axis and bent back again. In order to provide advantageous straightening conditions, it is proposed that the workpiece (1), which is held on the end side in mounting heads (6), is bent out by means of the mounting heads (6) in directions changing at least in predetermined angular ranges, and bent back again.

The invention relates to a combined plastic dam, in particular to an embedded combined plastic dam which belongs to dam structure technical field. The combined plastic dam comprise a plastic combined body and is characterized in that a lug boss and a concave groove matched with each other are respectively arranged in the middle parts of the left and right sides of the plastic combined body, a lug boss and a concave groove for vertical fixation are respectively arranged on the end surfaces on the upper and lower rows of the plastic combined body, the lug bosses and the concave grooves of the end-to-end connected plastic combined bodies are embedded and spliced to realize the transverse connection of the dam, and the lug bosses and the concave grooves of the vertically-connected plastic combined bodies are embedded and spliced to form the vertical connection of the dam. The invention adopts box-type components fabricated by waste plastic, greatly solves the utilization problem of waste plastic, reduces the pollution of waste plastic to environment, has superior waterproof property and durability, and has good anticorrosion and closing performance. The invention has broad raw material source, environmental protection, realizes mass production, requires less production investment and low cost, and is a good project with remarkable popularization value, less investment, quick returns and agriculture, countryside, and peasants supporting effect.

The invention relates to a forging apparatus, comprising forging rams (4) that are guided in the direction of stroke and accommodate forging tools (3), and lifting drives (7) which can be driven by a shaft (10) and which are supported in a non-positive manner on an abutment (12) of the forging rams (4) held under pretension in contact on the lifting drives (7). In order to provide simple constructional conditions it is proposed that the shafts (10) of the lifting drives (7) comprise two drive cams (11) which are angularly offset by 180° in relation to each other, are centrally symmetric with respect to the shaft axis, and cooperate with the abutments (12) of the forging rams (4).

The invention discloses a carbon fiber composite material ball head node and a connecting method thereof. The ball head node comprises a ball head, T-shaped screws and concave nuts; the ball head, the T-shaped screws and the concave nuts are all made of carbon fiber materials, the ball head is of a hollow ball structure, a plurality of long holes are formed in the ball head, the length of each long hole is larger than the width of each long hole, and each long hole is provided with one T-shaped screw and one concave nut and is connected with one pipe fitting. The connecting method comprises the steps that the ball head is slightly clamped by the T-shaped screws and the concave nuts, then the direction of the axis of each T-shaped screw is adjusted to a design value, finally, each concave nut is tightened, and the thread meshing positions and the contact positions of the concave nuts and the ball head are coated with epoxy resin glue and cured. Other structures are not needed for supporting and assisting solidification of the whole truss, the construction condition can be greatly simplified, the construction period is shortened, and the ball head node is of great significance in site construction of a large truss structure.