41results about How to "Easy to control appearance" patented technology

The invention provides a zinc-aluminum coating liquid of neodymium-iron-boron magnets and a coating method. The coating method includes the following steps that the surfaces of the neodymium-iron-boron magnets are coated with the zinc-aluminum coating liquid comprising 20-40 parts by weight of zinc, 10-20 parts by weight of aluminum, 0.5-1.0 part by weight of oxide, 1.0-2.0 parts by weight of organic solvents, 1.0-2.0 parts by weight of phytic acid, 1.0-2.0 parts by weight of alkylphenol ethoxylates, 0.3-1.0 part by weight of silane coupling agent and 1.0-5.0 parts by weight of polytetrafluoroethylene, and the coated neodymium-iron-boron magnets are obtained. According to the zinc-aluminum coating liquid coating method of the neodymium-iron-boron magnets, coatings are made to have high adhesive force and salt fog resistance.

The invention relates to porous material preparation, in particular relates to a method for preparing a high fatigue property porous Ti-6Al-4V bulk material, which is used for solving the problem of low fatigue property of the porous Ti-6Al-4V bulk material of the prior art. The method is that an 'electron beam molten metal molding technology' is utilized to prepare the large Ti-6Al-4V bulk material with the porosity of 50%-95% at first, the porous material is then subjected to two steps of thermal treatment of annealing and aging at 400 DEG C and 1000 DEG C, and the Ti-6Al-4V porous material with high fatigue strength, low elasticity modulus of (0.1-20 GPa) and 'the ratio of fatigue strength/compressive strength' of 0.7 is obtained finally. According to the method, the mechanical performance of the porous Ti-6Al-4V pore wall material is controlled through a thermal treatment technology, and thus, a large titanium alloy porous material with excellent fatigue property is obtained and can be widely applied to the fields of aerospace, medical treatment and the like.

The invention discloses a sustained-release oxygen microsphere as well as a preparation method and application thereof. The sustained-release oxygen microsphere is a microsphere using gelatin as a matrix; the interior of the microsphere contains peroxidated inorganic particles, and preferably, the peroxidated inorganic particles are selected from one or multiple of CaO2 (calcium peroxide), MgO2 (magnesium peroxide), NaCO3 (sodium carbonate), SrO2 (strontium peroxide), BaO2 (barium peroxide), K2O2 (potassium peroxide), and Na2O2 (sodium peroxide). The sustained-release oxygen microsphere has the advantages that the size is controllable, the oxygen release time is long and controllable, the sudden release rate is low, the cell toxicity is low, the immunogenicity is low, the preparation process is relatively simple, the industrialized production is easily realized, and the like; the larger application prospect is realized in clinical application of bone defect repair.

The invention discloses a tile leaf type expansion anchor rope/rod. The tile leaf type expansion anchor rope/rod comprises a grouting pipe, an anchor rope, an anchor rope guide steel pipe, a guide cap and a main steel pipe; the anchor rope guide steel pipe is positioned in the main steel pipe; the anchor rope is positioned in the anchor rope guide steel pipe; the guide cap is positioned at the lower end of the main steel pipe; the upper end of the main steel pipe is sleeved with a cylindrical piston; the cylindrical piston is sleeved with a piston outer steel pipe; the piston outer steel pipe and the main steel pipe are both bonded with the upper end of the cylindrical piston; the upper ends of the piston outer steel pipe and the main steel pipe are connected through an upper bearing body; the guide cap and the lower end of the main steel pipe are connected through a lower bearing body; the outer cylindrical surface of the lower end of the cylindrical piston is provided with a step, whose outer diameter is larger than the inner diameter of the piston outer steel pipe; the outer cylindrical surface of the main steel pipe is provided with a limiting ring, whose outer diameter is larger than the inner diameter of the cylindrical piston; slurry starts to enter an expansion cavity in sequence through the main steel pipe until the expansion cavity is fully injected; and the slurry is solidified to become a standard conical anchor expansion body. The conical anchor expansion body is suitable for clay stratum, higher in firmness, convenient to operate and low in cost.

The invention provides a method for rolling and processing tool bits. The method comprises the following steps: (1) selecting hot-rolled iron plate or hot-rolled wire blank as tool body material and high-carbon steel blank as tool edge material, polishing the hot-rolled iron plate or hot-rolled wire blank and the high-carbon steel blank and welding the high-carbon steel blank and the hot-rolled iron plate or hot-rolled wire blank into a raw material blank; (2) heating the raw material blank to a set temperature; (3) obtaining a rough processed blank by taking out and forging the raw material blank heated to the set temperature and inlaying the high-carbon steel blank into the hot-rolled iron plate or hot-rolled wire blank; (4) obtaining a fine processed blank by rolling and shaping the rough processed blank; and (5) obtaining a tool bit by cutting the fine processed blank according to the shape of a to-be-processed tool bit. The invention also provides rolling equipment for realizing the rolling-processing method. The invention provides the method for rolling and processing tool bits, and the rolling equipment thereof, which have the advantages of adopting machining, greatly improving product qualification ratio, reducing processing cost, improving working efficiency, protecting environment and saving energy.

The invention relates to a forging method, in particular to production of various Y-shaped blanks made of plastic forming materials. Through the forging method for manufacturing the Y-shaped blanks, the problems that the Y-shaped blanks are difficult to manufacture, boundary dimensions are inaccurate, the utilization rate of materials is low, macroscopic streamlines do not follow outlines, and energy is wasted are solved. In all links of forging operation, plate blank manufacturing, the lengths of kerfs and the positions of punched holes can be accurately controlled, and thus the outlines and dimensions of the Y-shaped blanks are easily controlled, and mass production is facilitated. The working procedures are simple, the forging heating number is small, and waste of energy for forging heating and consumption caused by self-heating of the materials are reduced. The dimensions of the blanks are easily controlled, and the maximum utilization rate of the materials can be achieved. The obtained Y-shaped blanks can maintain the original forging streamlines, and finally produced forgings can have good anti-fatigue ability.

The invention discloses a sponge sofa and a making method thereof, the sponge sofa comprises a sofa frame, and a sponge layer with sofa backrests and sofa armrests are integrally foamed on the outer surface of the sofa frame. The sponge sofa is prepared as follows: first, making the sofa frame, then placing the sofa frame into a die, and integrally foaming the sponge layer on the outer surface of the sofa frame. The sponge sofa prepared by the method has the advantages of simple manufacture technology, easy controlled appearance, mechanized production and excellent life and the like.

The invention discloses an iron-based alloy reactive armor shell with low collateral damage. The shell comprises a reactive armor housing and a reactive armor chamber shell positioned in the reactive armor housing, and is prepared by iron powder of 70-97 parts by weight, copper powder of 2-30 parts by weight and graphite powder of 0.3-1 part by weight through a powder metallurgy method and a subsequent processing technology. A preparation method adopts the powder metallurgy method, and comprises such processes as powder mixing, compression molding, sintering, shaping, oil containing, cleaning, surface treatment and welding. The reactive armor shell prepared by the method is lower in fragment collateral damage effect after the reactive armor effect, and has such advantages as high strength, low cost, controllable shape and batch production.

The invention relates to the technical field of distribution transformers, in particular to a transformer. The transformer includes an elliptical coil, an upper clamp and a lower clamp. The ellipticalcoil is clamped between the upper clamp and the lower clamp, and the upper clamp and the lower clamp clamp the elliptical coil in the axial direction of the elliptical coil, and the elliptical coil is used for wire winding. The transformer rotates smoothly at the time of wire winding, a coil better fits the surface of the elliptical coil in the winding process, and the wound coil turns are not loose and not easy to deform, and have better short-circuit resistance and excellent safety.

The invention discloses a sponge sofa or sponge stool structure which comprises a low-density sponge foaming forming sofa base or low-density sponge foaming forming stool base with the foaming density of 10-35 kg/m<3>, wherein a high-density sponge cladding layer with the foaming density of 35-60 kg/m<3> is integrally foamed on the outer surface of the base; the hardness of the sponge sofa base or the sponge stool base is Share A 20+; the hardness of the sponge cladding layer is 30-80 Kgf. The sponge sofa structure has the characteristics of simple manufacturing process, shape controllability, high production efficiency and low manufacturing cost. In addition, a low-density sponge of the sponge sofa base or the sponge stool base is relatively low in price and light in weight and has certain supporting strength and supporting toughness. Therefore, the consumption of a high-density sponge can be reduced, and the material cost and weight of a whole sponge sofa or stool can be further reduced. Moreover, the sponge cladding layer is integrally foamed on the outer surface of the sponge sofa base or the sponge stool base, is firmly attached to the surface of the base and is unlikely to loosen, and thus the service life of the sponge sofa or stool is guaranteed.

The invention discloses a preparation method of reactive sealant resin, which comprises the following steps: (1) polymerizing a hydroxyl-containing initiator with an epoxy compound under the action ofan alkali catalyst to obtain polyether polyol; (2) adding an alkoxide reagent and a halogenated end-capping reagent containing double bonds into the polyether polyol obtained in the step (1) to reactso as to obtain a double-bond end-capped polyether crude product, and refining the obtained crude product so as to obtain a modified polyether product; and (3) carrying out silane end-capping reaction on the modified polyether and hydrogen-containing silane under the action of a hydrosilylation catalyst to obtain the target product reactive sealant resin. The resin is excellent in property, and has good adhesion and finishing property.

The embodiment of the invention provides an anisotropic conductive adhesive and a pasting method. The anisotropic conductive adhesive comprises a liquid optical transparent adhesive and a plurality of conductive particles mixed in the liquid optical transparent adhesive, wherein each conductive particle comprises a conductive ball and an insulating layer wrapping the conductive ball.

The invention relates to a preparation method for carbon black, specifically to a preparation method for a size-controllable amorphous carbon array. According to the invention, the characteristic that carbon black is simple and easy to prepare is utilized, and carbon black is very uniform and fine (40 nm) and is allowed to enter a template material to prepare a carbon black array; and the characteristics of a magnet switch are skillfully utilized, so the prepared array is not destroyed. The size-controllable amorphous carbon array prepared in the invention can be applied to the fields of gas-solid reactions, computer-simulated calculation and verification, etc.; and the array is simple and easy to operate.

The invention relates to the field of composite material preparation, in particular to a preparation method of a light, high-strength and high-energy-absorption composite material, which is suitable for preparing a titanium alloy-polyurea composite material with a three-dimensional interpenetrating characteristic. The method comprises the following steps: preparing an alloy porous material; modifying the surface of the alloy porous material; infiltrating polyurea into the alloy porous material, and carrying out heat treatment; the composite material is formed by compounding a titanium alloy porous material and a polyurea reinforced phase, wherein the porosity of the titanium alloy porous material is 60-80%, and the titanium alloy porous material and the polyurea reinforced phase are printed through an additive manufacturing technology; the two groups of phases are communicated with each other and interspersed in a three-dimensional space; when the density is 2.0-3.5 g/cm < 3 >, the tensile strength of the composite material reaches 200MPa, the compressive strength reaches 600MPa, the recoverable strain reaches 25%, and the absorption energy reaches 50KJ/cm < 3 >. The method is simple in process step and low in production cost, and has good application prospects in the fields of national defense, aerospace, automobiles, energy and the like.