642results about How to "Avoid affecting product quality" patented technology

The invention relates to environmental-friendly pigment bismuth yellow and a production method thereof. The production method is characterized by comprising the steps of: firstly placing solid bismuth into a mixed acid solution made of nitric acid and hydrochloric acid for soaking, then taking out for reacting with a nitric acid solution to obtain a bismuth nitrate solution; keeping the nitric acid in an excessive state, then mixing and dissolving ammonium metavanadate or ammonium metavanadate and ammonium molybdate into ammonia water to obtain a vanadium-containing or vanadium and molybdenum-containing ammonia water mixed solution; under the condition of continuously stirring, simultaneously adding the bismuth nitrate solution and the mixed solution into a reactor containing a dispersing agent and a bottom fluid to obtain a light yellow sediment; and washing, drying and pulverizing according to a conventional method, finally, calcining and sieving to obtain the environmental-friendly pigment bismuth yellow with uniform granularity. The invention has the advantages of easy control of process conditions, good product dispersity, fine and uniform granularity, good powder activity, wide source and high utilization ratio of raw materials and better economic feasibility.

The invention relates to a purification method of ultra-pure aluminum, comprising the following steps: cleaning and drying raw refined aluminum, wherein the purity of the selected refined aluminum is at least 4N6, Mg is less than 6ppm, Ti is less than 0.2ppm and Zr is less than 0.2ppm; loading the selected raw refined aluminum into a purification furnace, sealing and vacuumizing the furnace, and heating to 680-750 DEG C by using a gas furnace to melt the solid raw refined aluminum to form liquid; moving the purification furnace heated to 680-750 DEG C to a crystal growing furnace which is kept at 660 DEG C inside by a crystal growing furnace heater, rotating the aluminum liquid of the purification furnace in the crystal growing furnace heater, and enabling the aluminum liquid inside the purification furnace to self-keep the crystallization speed at 5-10 cm/h by controlling the heat dissipating capacity of the crystal growing furnace and finishing the crystallization after 4-6 hours; cooling the crystallized purification furnace, taking out a crystallization ingot, removing 25-35 percent relative to the mass of the crystallization from the tail part of the crystallization ingot and obtaining a first purified aluminum ingot; placing the first purified aluminum ingot into the purification furnace again, and repeating purification until the aluminum ingot reaching the required precision is obtained.

The invention discloses a cylindrical backwash purifying device comprising a body and a plunger which is arranged in the body and can be connected in an axially sliding manner. The body is provided with a feeding passage and a discharge passage which are connected with a through hole. An outer circle at the front part of the plunger is recessed inwards, and together with the inner wall of the through hole, forms an annular empty cavity which is connected with the feeding passage. The plunger is axially provided with an L-shaped hole, which is connected with the discharge passage, in a direction from the front to the back. A recessed peripheral surface of the plunger is radially provided with a filter hole connected with the annular empty cavity and the L-shaped hole. The recessed peripheral surface of the plunger is connected with a detachable filter screen. A separating bar contacted with the inner wall of the through hole is axially arranged on the plunger and in the annular empty cavity. Semicircular grooves are arranged on the outer surface of the plunger and at two sides of the discharge passage. The cylindrical backwash purifying device has the advantages of reasonable design, simple structure, small volume, large effective filter area, good filter effect, no need of halt during cleaning or filter screen replacement, long continuous work time, high work efficiency and high product quality.

The invention discloses a curing kiln of a light aggregate concrete hollow partition board. A kiln body is formed by tightly connecting a rear kiln wall, a kiln top, a kiln door and a heat-prevention partition, wherein the kiln top is in a'herringbone'-shaped structure; a kiln top heat-prevention heat-insulating layer covers the kiln top; an in-kiln heat-prevention and heat-insulating layer is arranged at the kiln top rightly above the heat-prevention partition; a slide groove is arranged at the front end of a stand column of the kiln door; kiln door guide wheels which are matched with the slide groove to work are symmetrically arranged on two sides of the kiln door; and a kiln door bottom sealing strip is arranged at the bottom of the kiln door. The kiln body of the curing kiln adopts a full-sealing design and a heat-prevention and heat-insulating material so that the stability of a temperature in the kiln is guaranteed and'running, emitting and leaking' phenomena of heat in the kiln are avoided; and an inclined type kiln top structure is adopted to prevent the situation that the quality of products is influenced as water mist generated in a curing process is condensed into water drops on the kiln top to fall on the surface of the partition board.

The invention discloses a six-shaft joint mechanical hand and relates to the industry mechanical hand technology. The six-shaft joint mechanical hand comprises a mechanical hand body and a control system; the mechanical hand body is connected with the control system through a data line; the mechanical hand body comprises a base, a first shaft servo motor and a speed reducer thereof, a first shaft rotary shaft, a second shaft base, a lower hand servo cylinder, a lower arm, an upper arm servo cylinder, an upper arm, a fourth shaft rotary shaft, a fifth shaft servo motor and a speed reducer thereof, a fifth shaft rotary base, a sixth shaft rotary shaft and a sixth shaft servo motor and a speed reducer thereof; the control system comprises a programmable controller, a movement control module, a servo driver, an alarming device, a hand box, a touch screen, a limit switch and a sensor. The six-shaft joint mechanical hand has the advantages of achieving six-shaft joint control through the control system, being simple in structure, achieving domestic production, reducing products, shortening the purchasing cycle, being suitable for small and medium businesses to use and high in positioning accuracy, improving the production quality and the production efficiency and having a good application prospect in the industry mechanical hand technology field.

The invention relates to a preparation method of an ABO/RhD blood group antigen detection reagent card. Eight microcolumn gel tubes are arranged on the detection reagent card, wherein two gel tubes contain gel and anti-A monoclonal antibodies with an immunoglobulin m (IgM) property, two gel tubes contain gel and anti-B monoclonal antibodies with the IgM property, two gel tubes contain gel and anti-D monoclonal antibodies of RhD blood type with the IgM property, and two gel tubes contain a gel suspending medium buffer solution and gel.

The invention discloses a brushing device for a metal bar. The brushing device for the metal bar is small in radial load of planet gear and long in service life. The brushing device for the metal bar comprises a machine base, a revolution seat, a hollow shaft and a belt wheel. A sun gear, a main connecting rod and a revolution head are arranged on the hollow shaft above the revolution seat in a sleeved mode in sequence, the revolution head is fixedly connected to the revolution seat, the revolution head is provided with two sliding seats which slide relatively in the radial direction of the revolution head, transition gears meshed with the sun gear through transition gear shafts are arranged on the main connecting rod and on the two sides of the sun gear, planet gear shafts are arranged in the sliding seats in a penetrating mode, one end of each planet gear shaft is provided with a planet gear meshed with the corresponding transition gear in a sleeved mode, the other ends, penetrating through the sliding seats, of the planet gear shafts are provided with brushing wheels, the position, close to the main connecting rod, between the transition gear shafts and the planet gear shafts is provided with an auxiliary connecting rod in a movable sleeved mode, the ends, close to the revolution seat, of the transition gear shafts are provided with connecting plates in a rotating sleeved mode, and the other ends of the connecting plates are arranged at the corresponding positions of the planet gear shafts in a sleeved mode.

The invention relates to the technical field of food processing, and in particular relates to small crispy pork slices and a preparation method thereof. The small crispy pork slices are prepared by coating the surfaces of pickled pork bars with a sizing agent and frying the pickled pork bars with oil, wherein the pickled pork bars are prepared from the following raw materials: edible livestock pork, eggs, edible salt, sodium tripolyphosphate, sodium bicarbonate, citric acid, seed powder of Chinese prickly ash, fennel powder, tsaoko cardamon powder, nutmeg powder, cassia powder, white pepper powder and water; the sizing agent is prepared from the following raw materials: water, sweet potato starch, wheat flour, plant oil, polyglycerin ricinoleate, sucrose fatty acid ester, D-sodium ascorbate, dyestuff and eggs. Compared with conventional small crispy pork slices, the small crispy pork slices provided by the invention are golden and attractive in color, loosened and soft and smooth and tender in taste and applicable to industrial large-scale production, so that traditional delicious food of China can be inherited.

The invention relates to a Method for decoloration when crude sodium pyrophosphate is purified to produce a sodium pyrophosphate product. In the process of purifying the crude sodium pyrophosphate to produce the sodium pyrophosphate product, oxidizing agent is adopted for processing, other micro-soluble aluminum phosphate (pyrophosphate), ferrous phosphate (pyrophosphate), calcium phosphate (pyrophosphate) and the like are prevented from separating out to influence product quality, the problem that the sodium pyrophosphate product is reddish or becomes reddish in storage and application is solved; the introduction of phosphate (pyrophosphate) impurities into the sodium pyrophosphate product to influence crystallization morphology is reduced; product quality is improved; and the difficulty of filtration in production is overcome.

The invention provides a vertical boxing machine and rotary box-sucking mechanism thereof, and belongs to the mechanical devices or equipment of packing objects or materials. The vertical boxing machine comprises a paper box storeroom (1) and a paper box delivery and convey chain mechanism (2) which comprises a convey chain assembly (3), a tongue driving mechanism (4) and a tongue inserting mechanism (5). The vertical paper boxing machine is characterized in that the rotary box-sucking mechanism (20) is arranged between the paper box storeroom (1) and the convey chain mechanism (2) and is matched with the same; the rotary box-sucking mechanism comprises a turntable (6) connected with a power device in a transmission manner. A radial reciprocating-moving box-sucking unit assembly is arranged on the turntable (6) and mainly comprises a sucking head (7) connected with an air source; and the vertical boxing machine capable of completing material vertically boxing and sucking and releasing the paper boxes successfully without additional paper box opening mechanisms.

The invention discloses a technique for extracting rice bran protein; the prior art used for extracting rice bran protein comprises the following methods: a base-dissolving and acid-precipitation method and an enzymatic method, and the defects are that the quality of the extracted protein is poor and the technique is complex, meanwhile, other natural product nutrient ingredients such as Gamma-oryzanol, etc. are eliminated as impurities; the technique of the invention adopts thin protein pulp as a solvent to extract the protein and other natural product nutrient ingredients with simple technique and low cost; the product (the rice bran protein pulp and the dried rice bran protein pulp product) contains vegetable protein and other natural product nutrient ingredients with rich nutrient ingredients, can be used for production of food, drinks and health products, thus improving the added value of the rice bran, and having important significance for the comprehensive application of the rice bran and environmental protection.

The invention discloses a high-corrosion resistance hub bearing unit. The high-corrosion resistance hub bearing unit comprises a flange plate; the flange plate includes an annular flange, and a cylindrical part arranged on the front side of the annular flange and provided with an outer ring and an inner ring; a riveting section for fixedly and rotationally riveting the inner ring is arranged at the head end of the cylindrical part; zinc nickel plating layers are arranged on the outer surfaces of the flange plate and the outer ring; and the flange plate is provided with a zinc nickel plating layer blank area corresponding to the riveting section. The invention further provides a machining process of the high-corrosion resistance hub bearing unit, wherein the design parameters of a rotary riveting cavity of the riveting pressure head are as follows: alpha=gamma=40 degrees, beta=5 degrees, R1=1.5 mm, R2=5 mm, and R3=3 mm. All outer surface, besides the rotary riveting part of the flange plate, of the hub bearing unit is plated with the black environment-friendly zinc nickel plating layers, so that the oxidation resistance and the corrosion resistance of metal surfaces are improved, and the service life of the bearing is prolonged.

The invention discloses a preparation method for natural astaxanthin egg yolk oil. The preparation method comprises the following operation steps of separation, detection, drying, screening, extraction, filtering, detection, packaging and warehousing. According to the preparation method provided by the invention, by taking a whole egg produced by a chick fed with haematococcus pluvialis as a production raw material, through biotransformation, astaxanthin in the haematococcus pluvialis exists in egg yolk in an esterification state and is more easily absorbed by a digestive system and skin of ahuman body, and astaxanthin-rich egg yolk oil is obtained through a low-temperature drying and extraction technology, so that the extraction efficiency is high, and the bioactivity of the astaxanthinis high.

The invention discloses a calendar on-line thickness-measuring device, which overcomes the disadvantages of wasting time and energy and poor accuracy in prior measuring methods by a dial test indicator and a micrometer in site. In the invention, optical measurement-control principle is applied to extract parallel light of second derivative action circuit on the imaging edge of CCD photosurface; narrow square signal output is converted to obtain the thickness of the calendered goods to be measured through computer processing; any on-line thickness measurement of calendered goods to be measured can be implemented. The device consists of a bearing, calendered goods to be measured, a guild roll, a sensor device, a guild way, a slide rod, a ball screw, an actuating motor and a variable-frequency motor. The device provided by the invention has the beneficial effects of stable performance, high measuring efficiency, reducing labor intensity and accurate measurement, moreover, the accuracy difference is below 5mum, thus realizing automation and integration of measurement systems.

The invention relates to a process for producing cathode copper by low-grade anode plates. Low-grade high-nickel tin black copper is used as raw materials for direct electrolysis refining to prepare qualified cathode copper; through such modes as adjustment of process conditions, selection of reasonable current density, flow and temperature, adjustment of the additive ratio and adding of modifiedpolyacrylamide, the obtained cathode copper is higher in grade, smooth in surface, clear and compact in grain, uniform in thickness and beautiful; meanwhile, the purification and replacement period ofelectrolyte is prolonged, so that the production cost is greatly reduced when the recovery rate is increased; anode mud is treated by adopting ethyl acetate and phenolic resins, so that the problem of difficult gold and silver separation of the anode mud due to adding of polyacrylamide is solved, and the daily treatment quantity of the anode mud is increased; and copper sulfate crystal seeds areintroduced to accelerate separation of copper sulfate crystals, so that the recycling rate of metal copper and nickel is improved.

The invention relates to a hydraulic press control system, and a method for machining automotive interiors by the hydraulic press control system. A servo pump comprises a low-pressure high-flow pump and a high-pressure low-flow pump, and an outlet of the low-pressure pump is connected to an inlet of a first check valve; an outlet of the high-pressure pump is connected to an outlet of the first check valve in parallel, and the outlet of the first check valve is connected to inlets of a second cartridge valve, a third cartridge valve and a fourth cartridge valve; the outlet of the third cartridge valve is connected to an inlet of a second check valve, and an outlet of the second check valve is connected to an upper cavity of a master cylinder; the outlet of the fourth cartridge valve is connected to a lower cavity of the master cylinder; and the lower cavity of the master cylinder is connected to the inlet of the first cartridge valve, and the outlets of the first cartridge valve and thesecond cartridge valve are connected to a main oil tank. The method for machining the automotive interiors comprises the following steps of quick descending, feeding, compression, pressure maintaining and decompression of the master cylinder, draft and slow return, ejection and return of a ramming cylinder, and back stroke of the master cylinder in sequence. The automotive interiors machined by the hydraulic press are high in yield rate and low in energy consumption.

The invention discloses a gluing thickness online detection device in a gluing production line. The device comprises a gluing thickness detection mechanism, a driving mechanism, and a control mechanism. The gluing thickness detection mechanism is used to detect gluing thickness of a glued material in real time and synchronously capture width of the glued material. The driving mechanism is used to drive the gluing thickness detection mechanism to move along the width direction of the glued material. The control mechanism is used to receive width signals and gluing thickness signals of the glued material, the signals being sent by the gluing thickness detection mechanism, and according to the width signals of the glued material, controls the driving mechanism to drive the gluing thickness detection mechanism to move along the width direction of the glued material, and meanwhile the gluing thickness signals of the glued material is converted to gluing thickness data and is displayed. The gluing thickness online detection device can full-automatically detect thickness of the glued material online in a gluing production line, providing convenience for operating personnel to adjust a production technology, ensuring quality of a product, and saving cost.

The invention provides a forming device of rapid heating and cooling separation type continuous carbon fiber thermoplastic U-shaped part. The forming device comprises an upper driving mechanism, a lower driving mechanism, a vertical guide mechanism, an upper base, an upper mold, a lower mold and a lower base, wherein the upper base, the upper mold, the lower mold and the lower base are sequentially arranged from top to bottom; a lower heating plate is arranged at the top of the lower base, a cooling mechanism is embedded in each of the upper mold and the lower mold, the upper driving mechanismdrives the upper mold to ascend and descend along the vertical guide mechanism, the lower mold is installed on the vertical guide mechanism and can ascend and descend along the vertical guide mechanism, and the vertical guide mechanism is provided with a lowest limiting mechanism corresponding to the lower mold; and the lower driving mechanism drives the lower base to ascend and descend along thevertical guide mechanism. The invention further provides a forming process of the continuous carbon fiber thermoplastic U-shaped part. The forming device of the rapid heating and cooling separation type continuous carbon fiber thermoplastic U-shaped part and the process have the advantages of being scientific in design, high in production efficiency, low in energy consumption, good in product quality, economical and applicable.