38results about How to "Guaranteed quality uniformity" patented technology

The invention provides an automatic detection and control method of elusion start points and end points during macroporous resin purification of buckeye extract. An aescin macroporous resin purification near-infrared calibration model is built by using total content of aescin as evaluation index, the calibration model is used in online detection of buckeye extract macroporous resin elusion, and accordingly automatic judgment of elusion start points and end points during macroporous resin purification of buckeye extract is achieved, and automatic control of eluant receiving and receiving stopping is achieved. The method is fast, accurate, high in automation level and the like, manual errors are reduced, the problem that products of different batches are poor in quality uniformity is solved, effective component loss and waste can be avoided effectively, and a new technique is provided for automatic control and process quality control during macroporous resin purification of buckeye extract.

The invention discloses a preparation method of a high-performance samarium-cobalt permanent magnetic material. The method at least comprises one of the following steps: raw material preparation, smelting, pulverization, orienting compression, sintering and aging treatment; sintering is that degassing dedusting, pre-sintering, vacuum sintering, protective atmosphere sintering and solution treatment are sequentially carried out on a blank which is obtained by orienting compression; and pre-sintering is pre-sintering at 1050-1180 DEG C for 20-30 minutes. A high-temperature sintering zone is formed by selecting and controlling different vacuum degrees and temperatures in the sintering process of a sintering method in the scheme, a high-vacuum, high-heat and constant-temperature sintering process is formed and a single-phase uniform solid solution samarium-cobalt permanent magnet blank is obtained, so that the quality of a permanent magnet product is improved, the production benefits of a sintering furnace are improved and the yield of the product is improved by 30%.

The invention discloses a sterilization method of a steam sterilizer and the steam sterilizer. The steam sterilizer comprises a sterilization cavity (6), an interlayer (7), and an injector vacuumizing unit, and is characterized by also comprising a sterilization cavity interlayer air inlet unit, a sterilization cavity air return unit, a sterilization cavity drainage unit, a sterilization cavity vacuumizing unit, an interlayer steam inlet unit and an interlayer drainage unit. The sterilization method comprises the specific sterilization steps: 1, preheating; 2, performing positive pulse replacement; 3, performing negative pulse replacement; 4, pulsing; 5, raising the temperature; 6, sterilizing; 7, exhausting; 8, drying; 9, returning air; and 10, ending. According to the sterilization method disclosed by the invention, rapid and high-efficiency sterilization can be realized through the steam sterilizer with a water injector.

The present invention proposes a threaded inner wall extrusion die and a method for improving the degree of fibrosis of a film material rod. The holes are connected, and the inner wall of the cone cavity is provided with threads. The invention can effectively improve the shear friction between the powder particles and the inner wall of the mold during the plunger pushing process of PTFE by providing threads on the inner wall of the cone cavity, so that the degree of fibrosis of the rod can be significantly improved. And due to the guiding effect of the thread, the direction of the shear force is always parallel to the direction of the thread, and the corresponding microfibers will be oriented along the direction of the thread, and the fiberization direction is more accurate, ensuring that the final produced Quality uniformity and mechanical stability of PTFE film, the polytetrafluoroethylene film of general mold production, the CV value of its thickness uniformity is at 30~50%, and adopt the PTFE film prepared by the present invention, the CV value of its thickness uniformity Can reach within 10%.

The invention discloses a carbonitriding heat treatment technique under a new atmosphere. The technique comprises the following steps that (a), a multi-purpose chamber furnace suitable for carburizing treatment is selected; (b), a nitrogen, methyl alcohol, ammonia gas and dimethylmethane carburizing medium is adopted, and an oxygen probe is adopted to control the carbon potential, so that control over the carbon potential of the atmosphere in the furnace is achieved; (c), according to a charging mode, charging layers are chosen according to the heights of workpieces, and gaps are kept between the workpieces of each layer to guarantee the uniformity of infiltration layers; (d), according to technological parameters, the carbonitriding temperature is 815 DEG C-825 DEG C, the carbon potential is 1.20%-1.30%, and strong infiltration is conducted for 3 h-3.5 h; in the diffusion period, the temperature is 815 DEG C-825 DEG C, the carbon potential is 1.10%-1.20%, and diffusion is conducted for 3 h-3.5 h; KR-218 fast bright quenching oil is used for quenching, and cooling is conducted for 8 min-15min; and air cooling is conducted after tempering; and (e), steel foil is used for carbon determination during strong infiltration of each furnace. According to the carbonitriding heat treatment technique under the new atmosphere, a carbonitriding layer with a certain depth can be obtained in a relatively short time, and higher hardness is achieved.

The invention belongs to the field of manufacturing technology, and specifically discloses a device and method for continuous pickling of titanium and titanium alloy oil pipes, which have low safety risks and are beneficial to control the surface quality and size uniformity of oil pipe pickling. The equipment for continuous pickling of titanium and titanium alloy oil pipes includes an equipment box, an actuator, a circulation mechanism and an acid mist collection device. The equipment for continuous pickling of titanium and titanium alloy tubing can fix the tubing on the rotary shaft and drive it to rotate in the equipment box to complete the pickling, neutralization and cleaning steps, which is beneficial to ensure the surface quality and size of the tubing pickling Uniformity; at the same time, the acid liquid, neutralizing liquid and cleaning liquid are pumped separately, which can not only improve the pickling efficiency, but also reduce the labor intensity of workers and reduce the risk of corrosion damage; in addition, during the pickling process, the acid produced The mist can be pumped into the lye tank by the fan through the acid mist discharge hole for neutralization treatment, which avoids the risk of acid mist overflow and meets the environmental protection requirements.

The invention discloses a method for processing a sorghum stalk shaving board. The method includes the steps of preparing a raw material, sieving, flaking, drying, storing, stirring the material, entering a mold, hot pressing, checking, being put in storage and the like. The shaving board processed through the processing method has an excellent mechanical property, the static bending intensity is larger than or equal to 16 MPa, the elasticity modulus is larger than or equal to 2117 MPa, the inner bonding strength is larger than or equal to 0.4 MPa, the thickness swelling rate of water absorption is smaller than 8%, and the method has the advantages of being low in cost, simple and convenient to implement in processing technology, capable of not generating pollutants and capable of not damaging the ecological environment; meanwhile, wood shaving is conduced first after the raw material is sliced, the quality evenness of wood shavings can be guaranteed, and therefore the surface flatness and fineness of the finished shaving board can be improved.

The invention discloses a material channel structure. The material channel structure comprises a liquid flow distribution area whose length direction extends along a first direction and is characterized in that liquid flow distribution area comprises a main shell and a distribution channel arranged in the main shell; at least one side of the width direction of the liquid flow distribution area isprovided with an auriculate bath, each auriculate bath comprises an auriculate bath body and a liquid flow cavity communicated with the distribution channel, and the bottom of the auriculate bath is provided with a drain plate communicated with the liquid flow cavity. The material channel structure has the advantages that molten basalt is distributed by the liquid flow distribution area to enter each auriculate bath, and the liquid flow distribution area is mainly used for distributing the molten basalt; the drain plates are not arranged in the areas of the auriculate baths, so that the lengthof the liquid flow distribution area can be reduced greatly, and the temperature change of the molten basalt in the liquid flow distribution area is reduced; due to the fact that the molten basalt synchronously enters the auriculate baths, the uniformity of the molten basalt in each auriculate bath can be increased effectively, and the quality uniformity of produced basalt fibers is guaranteed.

The invention discloses an automobile paint surface cleaning and repairing agent and a preparation method thereof. The selected components of the cleaning and repairing agent include nonionic surfactant fatty alcohol polyoxyethylene ether, corrosion inhibitor oleic acid diethanolamide borate, excipient Forming agent sodium alginate, wax removing agent xylene, purifying agent dimethylformamide, defoaming agent dimethyl silicone oil, diluent composed of various organic solvents and self-repairing filler developed by ourselves, through mixing and stirring, vacuum removal Prepared by stirring. The cleaning and repairing agent of the present invention is sprayed on the scratches of the car, does not damage the car paint, and is compatible with the varnish on the car surface. After it automatically fills up the scratch pits and forms a film, no obvious stains and scratches can be seen with the naked eye. No scratches, no damage to the car paint, one-time cleaning and repair of the car paint surface, saving the cost of repairing car scratches and construction costs.

The embodiment of the invention provides a die forging press. The die forging press includes a rack and an integrally formed movable girder, wherein multiple housings are parallelly arranged and fixedly connected with one another to form the rack, each housing includes a main cylinder, a column piston of each main cylinder is fixedly connected to the corresponding housing, the cylinder bottom of each main cylinder is connected to the upper surface of the movable girder, and all main cylinders are movable oil cylinders and are linearly distributed. By means of the integrally formed movable girder and the rack formed by parallelly arranging and fixedly connecting the housings, the demanded length of the movable girder for production of long-shaft type components is achieved, and since each main cylinder is the movable oil cylinder, a great guiding effect is ensured, so that the unbalance loading resistance of the die fording press is improved, and the service life is prolonged. Additionally, instead of being distributed in a two-dimensional mode in the traditional sense, the main cylinders are distributed linearly, and therefore the position of each main cylinder can be quickly adjusted to ensure the balance of the movable girder. Thus, inclination of the movable girder and other phenomena caused by unbalanced stress during machining is avoided, and the quality uniformity of forging pieces is guaranteed.

The invention relates to a coating device for improving the interior of blown film equipment and a production process. The coating device comprises a rack, a deviation correcting device, a tension control device, guide rollers, a traction device, a first intaglio coating component, a second intaglio coating component, a third intaglio coating component, a fourth intaglio coating component and a horizontal labyrinth dryer. By adopting the coating device, double surfaces of a wide-size agriculture greenhouse film (other functional films) can be quantitatively coated for two or multiple layers, each unit is independently driven, or the thickness and the content of other effective components of each layer of a functional coating liquid are quantitatively controlled according to the specification of each unit net wire, so that special functions of the agriculture greenhouse film (other functional films) are improved or added, and the continuity and the quality uniformity and stability in production are ensured.

The invention discloses a continuous belt-shaped bamboo strip preparation system and a preparation method thereof, and relates to the technical field of bamboo strip manufacturing. Rolling device, the modulus grading device is used to classify the bamboo strips according to the tensile modulus, and screen out the bamboo strips that meet the standard; the cutting device is used to cut the ends and tails of the bamboo strips; the gluing device is used to separate the adjacent bamboo strips. The tail and end of the bamboo strips are glued to form a continuous strip of bamboo strips; the winding device is used to wind the continuous strip of bamboo strips, and the controller is used to control the modulus classification device, cutting device, gluing device and winding device. action. The continuous strip-shaped bamboo strips preparation system and the preparation method thereof can solve the problems existing in the prior art, ensure the uniformity of the tensile modulus of the bamboo strips, improve the quality of the continuous strip-shaped bamboo strips, and improve the production of the continuous strip-shaped bamboo strips. efficiency.