30results about How to "Manufacturing method science" patented technology

The invention relates to a building material and a method for preparing the same, in particular to a glass fiber reinforced cement board and a method for preparing the same. The glass fiber reinforced cement board comprises the following components in weight portion: 100 portions of Portland cement, 13.6 to 15 portions of high alumina cement, 3.1 to 3.4 portions of fly ash, 5.7 to 6.3 percent of plaster stone powder, 120 to 132 portions of ceramsite, 6.5 to 7.1 percent of foaming agent, 74.5 to 81.3 percent of dispersing agent, 53 to 58.7 portions of pure water and 3.6 to 4 portions of plastic-coated glass fiber grid cloth. The preparation method sequentially comprises the following steps: mixing weighed-up solid materials, adding weighed-up liquid materials in the previous step, cavity forming, roll extruding, vibration, cutting and curing. The invention has the advantages that: the glass fiber reinforced cement board has advantages of light volume weight, high strength, low dry shrinkage wet swelling coefficient, no after expansion and shrinkage, corrosion resistance, sound insulation, heat insulation, fire resistance and non-combustion; the preparation method has the characteristics of scientific and reasonable method, continuous production, high efficiency and low cost, flat board surface, convenient in-site mounting and the like; the glass fiber reinforced cement board is good in water resistance, and particularly applied to the finishing of internal and external walls and ceilings of various buildings in wet environments; moreover, the glass fiber reinforced cement board and a method for preparing the same have the advantages of ensuring the strength and service life of cement due to the adoption of the plastic-coated anti-alkali glass fiber grid cloth, along with reasonable blending ratio and reduced alkalinity.

The invention discloses an aerated concrete building block and a manufacturing method thereof. According to the aerated concrete building block, fly ash and gypsum are taken as main raw materials. The aerated concrete building block contains the following raw materials in parts by weight: 60-75 parts of high-calcium fly ash, 4-15 parts of ordinary fly ash, 5-8 parts of gypsum, 13-16 parts of lime, 10-13 parts of cement, 0.07-0.10 part of aluminum powder and 43-46 parts of water. The manufacturing method of the aerated concrete building block mainly comprises the following steps of: (1) preparing materials; (2) pouring slurry; (3) standing; (4) cutting; and (5) carrying out autoclaved curing. The aerated concrete building block and the manufacturing method of the aerated concrete building block have the beneficial effects that the quality of the aerated concrete building block meets national standards, and the durability, crack resistance and frost resistance are improved; and the manufacturing method is scientific and reasonable, the effective utilization of the high-calcium and ordinary fly ashes is promoted, the production cost is reduced, and the yield is increased.

The invention discloses a floor surface board and a manufacturing method thereof. The manufacturing method is characterized by comprising the following steps: taking a fast-growing wood veneer as a substrate; coating the surface of the substrate with a melamine resin adhesive so as to form a substrate gluing layer; compounding a non-woven fabric or paper with a 0.2-0.4mm sliced thin wood, and dipping the wood in a melamine resin so as to form a decoration layer; taking aluminum oxide (Al2O3) wear-resistant paper as a wear-resistant layer; and molding the substrate with a gluing layer, the impregnated decoration layer and the wear-resistant layer at a time by use of a hot pressing forming machine at a temperature of 130-140 DEG C under the pressure of 1.5-2.0 MPa for 3-5 minutes. The manufacturing method is scientific and reasonable, the formation is easy, the quality is good, and the method has disadvantages of both saving wood resources and reinforcing floor surface board performance.

The present invention relates to building material, and is especially casting material suitable for producing light wall board and other building material. The casting material of the present invention consists of plant stalk powder, saw dust, magnesia, magnesium chloride aqua, and chemical mother liquid. The casting material of the present invention has the advantages of light weight, high mechanical performance, high mechanical strength, being waterproof, fireproof and aseismic.

The invention provides a manufacturing method for a zero-length spring and the zero-length spring, and relates to the field of sea-air gravity meters. The manufacturing method for the zero-length spring comprises the steps that a microstructure of a wire material is adjusted through a solid solution strengthening treating process, wherein the wire material is a constant elastic wire material; molding treatment is conducted on the solid solution wire material; pretension force is applied to a first spring through a reverse rotation mode; and tempering treating is conducted on a second spring. The manufacturing method for the zero-length spring is more systematic and scientific and high in precise so that the zero length error delta l of the zero-length spring is less than or equal to 1 millimeter, the drifting amount delta is less than or equal to 10<2>[mu] per day, the rigidity error k is less than or equal to 0.01 gram force per millimeter, and the difficult problem of physical zero length which cannot be solved by a traditional process is solved.

The invention discloses a stirring device with an aeration function and a manufacturing method thereof. The invention belongs to the technical field of environment-friendly mechanical equipment. On the basis of an impeller-free design, the stirring device is driven to rotate through aerodynamic force, thus stirring materials; an air jet hole has a unique venturi structure, which can effectively reduce the temperature of waste water and waste liquid, so that flocculation and deposition of floccules in waste water and waste liquid are promoted; in order to facilitate smooth processing of the venturi air nozzle structure, the manufacturing method is scientific, not only can the manufacturing efficiency of the stirring device be improved, but also the manufacturing cost is low, and compared with a traditional machining method. The manufacturing method is simple in process, free of rough machining and cutting links, capable of saving a large number of raw materials, capable of achieving batch production and capable of well solving the machining problem of the novel stirring device.

A manufacturing method for a sleeve pipe mounted on a middle planker comprises the following steps: 1, cylinder processing: blanking, large end cutting and small end cutting, small end excircle gear grinding allowance and inner hole cutting, and taper hole gear grinding, bolt hole drilling, heat treatment and fine inner hole grinding; 2, seat processing: casting, scribing, bottom surface peeling, inner hole cutting and fine boring, and threaded hole drilling and tapping; 3, drilling and tapping on the large slide carriage of a lathe by using a motor drill, and fixing a positioning plate; 4, fixing a support in a proper position of the middle planker of the lathe; 5, mounting a set screw at the slotted long cylindrical post end on the support by using a nut for locking, and propping the cylindrical end of the bolt on the positioning plate; 6, fixing the seat onto the middle planker of the lathe so as to enable the axial line of the inner hole of the seat to be basically coaxial with the rotation axis of the main shaft of the lathe; 7, clamping a boring bar onto the main shaft of the lathe, the feeding a cutter into the middle planker and finely boring the inner hole of the seat; 8, grinding the excircle of the small end of the cylinder according to the dimension of the finely bored seat so as to enable the match of the cylinder and the inner hole of the seat to be H7/h6; 9, fixing the cylinder into the inner hole; and 10, fixing a hand wheel onto a lead screw and mounting the lead screw into the screw hole of the cylinder. The manufacturing method is simple, scientific and low in cost, and has high economic benefits.

The present invention relates to a penicillin plant germicide for preventing and curing plant crop diseases, its preparation method and application. Its formula is scientific and reasonable. It is a preparation made up by using penicilling sodium as main raw material, and adding trace elements of zinc and copper, etc. and adjuvant as carrier, not only possesses the strong power for killing bacteria, fungi and virus, but also has the actions of impellieng crops to absorb nutrients, promoting growth of crops and obviously raising yield.

The invention relates to a heat insulation pipe for geothermal exploitation and a manufacturing method thereof, and belongs to the technical field of geothermal exploitation and utilization. The heatinsulation pipe for geothermal exploitation comprises a lining pipe, an outer pipe and a heat insulation material, the two ends of the lining pipe are bent to form outer flanges, the lining pipe is sleeved with the outer pipe, the two ends of the outer pipe abut against the outer flanges at the two ends of the lining pipe respectively, and a cavity between the lining pipe and the outer pipe is filled with the heat insulation material. The heat insulation pipe for geothermal exploitation has the advantages of being good in heat insulation performance, high in threaded connection strength, resistant to corrosion, self-lubricating, resistant to scaling, deep in the depth of entering a well and long in service life; and the manufacturing method of the heat insulation pipe is scientific, reasonable, simple and feasible.

The invention relates to the technical field of concrete conveying pipe manufacturing, in particular to a bi-metal composite pouring bent pipe used for concrete conveying and a manufacturing method. The dual-metal bent pipe comprises an inner container with a wear-resisting corrosion-resisting property and a shell welded with the inner container. The wear-resisting corrosion-resisting inner container is poured, the cooled inner container serves as a mold core for pouring of the shell, and high-temperature metal is used for welding the inner and outer dual-metal bent pipe. The bent pipe is simple in structure, separation falling of the inner and outer bent pipe can be thoroughly eradicated, the use failure rate is reduced, the adopted manufacturing method is simple and practical, productiondifficulty is greatly reduced, production efficiency is improved, the inner container is formed through casting of a high-strength wear-resisting corrosion-resisting material, the quality need is achieved under the condition that the whole bent pipe is thinner, the weight of the bent pipe is reduced, finally, the weight of equipment using the bent pipe is reduced, and safety and stability are improved.