476results about How to "Suitable for mass industrial production" patented technology

The invention discloses a blackening method for a lithium tantalite crystal substrate. According to the method, a fluoride material and the to-be-treated lithium tantalite crystal substrate are contacted sufficiently, and the lithium tantalite crystal substrate is subjected to reductive heat treatment at the temperature of 450-600 DEG C in non-oxidative reducing atmosphere for 5-24 h. The volume resistivity of the lithium tantalite crystal substrate after blackening is 10<9>-10<12> omega cm. The method has the advantages that the method is simple, reliable and easy to operate, and the obtained lithium tantalite crystal substrate has good resistivity repeatability and low cost and is applicable to batch production.

The invention relates to the field of Ti-based composite materials, in particular to a preparing method for an in-situ synthesis TiC-Ti5Si3 particle reinforcement Ti-based composite material. The preparing method includes the specific steps that firstly, materials are weighed; secondly, mixed powder of Ti powder and SiC powder is prepared; thirdly, loading is conducted; and fourthly, vacuum induction melting is conducted, and the in-situ synthesis TiC-Ti5Si3 particle reinforcement Ti-based composite material is obtained after cooling. According to the preparing method, the in-situ synthesis Ti-based composite material high in performance can be prepared by adjusting the content of reinforcement phases and components of a titanium alloy base body, and secondary molding can also be conducted with the combination of the technology of hot forging, hot rolling, hot extruding and the like. The preparing method has the advantages that the technology is simple, cost is low, and industrial production is easy to achieve.

The invention discloses a preparation method of a high-permeability mica tape. The high-permeability mica tape comprises: a mica paper layer (1) and a reinforcement material layer (4). The high-permeability mica tape is characterized in that: an adhesive layer (2) is sprayed between the mica paper layer (1) and the reinforcement material layer (4); the mica paper layer (1) is mica paper possessing the high permeability; the adhesive layer (2) is a solventless powdered resin which forms point distribution and a large amount of pore channels (3) exist between the pointlike resin. The method comprises the following steps: (1) respectively rewinding the mica paper and the reinforcement material and spraying the solventless adhesive resin powder on the mica paper; (2) after the mica paper sprayed with the adhesive resin powder is preheated, performing hot pressing and compositing, winding and cutting to the mica paper and the reinforcement material so as to obtain the high-permeability mica tape. The prepared mica tape possesses the high permeability. Adhesive contents are small. Flexibility is good. A caking property of the reinforcement material and the mica paper is good. The mica tape can be stored for a long time, can not harden and can not be crisp. A winding technology is good and the mica tape has many other advantages. The mica tape is suitable for insulation processing of various kinds of motors or electric appliance products and especially suitable for a large high-voltage generator set, whose voltage range is 13.8-27Kv. The mica tape is suitable for a main insulation VPI processing technology of a coil (stator bar) with a unilateral insulation thickness of 4-8mm. Soakage time can be shortened.

The invention discloses a preparation method of a high-tap density lithium iron phosphate material. The method comprises the following steps: mechanically mixing iron orthophosphate, a lithium source and a composite carbon source, transferring to a wet stirring ball milling device, adding a certain amount of deionized water and dispersant to form uniform suspension liquid, carrying out nano-ball milling on the obtained suspension liquid, spray-drying to obtain a precursor, and firing and crushing the obtained precursor to obtain the high-tap density lithium iron phosphate material. The lithium iron phosphate material prepared by the method disclosed by the invention has the characteristics of good processability, excellent electrochemical properties and the like when being used as a positive pole material of a lithium ion battery, and the preparation method is low in production cost, free of exhaust pollution, and convenient for commercial mass production.

The invention discloses a method for preparing a Fe-Mn-Si shape memory alloy coating via laser cladding. The Fe-Mn-Si shape memory alloy coating comprises raw materials including pure iron powder, nickel power, manganese powder, silicon powder, chromium powder, vanadium powder, terrae rare, quartz, wood flour, starch and the like, via the laser cladding way, the Fe-Mn-Si shape memory alloy coating prepared by the method has an excellent mechanical property, and particularly has the characteristics of good abrasion resistance, low stress residue, high fatigue strength. The self-designed cladding power preparation process is simple and suitable for industrial mass production, the cladding process is simple and easy to implement, and the obtained functional coating has greater market application prospects.

The invention discloses a variable-frequency speed-reducing clutch of bionic hand rubbing of a washing machine. The clutch provided by the invention comprises a lower shell and an input shaft which are matched; the lower shell is equipped with a stator of a direct-current brushless motor and the end part of the input shaft is connected with an external rotor of the direct-current brushless motor;the stator of the direct-current brushless motor is located at an inner cavity of the external rotor of the direct-current brushless motor and the input shaft is assembled with a sliding clutch mechanism composed of a shaft sleeve, a clutch shaft, a clutch sliding block and a clutch spring; the shaft sleeve covers the input shaft and the clutch shaft is located above the shaft sleeve to rotatablycover the input shaft; the shaft sleeve and the clutch shaft are all provided with peripheral splines; guiding splines on the inner periphery of the clutch sliding block are slidingly matched with the peripheral spline of the clutch shaft; the clutch spring is pressed on an annular lug boss on the periphery of the clutch sliding block and the clutch sliding block is connected with a clutch control mechanism. The clutch provided by the invention realizes the variable-frequency washing of the bionic hand rubbing of the washing machine; and the clutch enriches the washing function and has the advantages of low noise, energy source conversation, good safety performance and the like.

The invention relates to a method for preparing an import intermediate of a tapentadol hydrochloride analgesic, which is (2S)-1-dimethylamino-3-(3-methoxyphenyl)-2-methylpentyl-3-ol hydrochloride. The (2S)-1-dimethylamino-3-(3-methoxyphenyl)-2-methylpentyl-3-ol hydrochloride with optical activity is obtained by the Grignard reaction of a compound II with optical activity and a compound III with optical activity. The Grignard reaction is performed by mixing magneson solution of the compound III and the tetrahydrofuran solution of the compound II at 5 to 10 DEG C and standing the mixed solution at room temperature overnight. The molar ratio of the compound II to the compound III is 0.8-1:1.0-1.5. The preparation method of the invention is not limited by a chiral column split instrument, solves the problem of processing enantiomers as waste chemicals, reduces production cost and is more suitable for large-batch industrial production.

The present invention relates to the preparation process of ferric oxide red powder. Unlike available technology, which has the demerits of high production cost and low product purity of processed ferrous permanganate, the present invention uses ferrous sulfate as the side product of titanium white powder production as material and produces high purity ferric oxide red powder via purification to eliminate impurity, precipitation to eliminate manganese, water washing, spray burning and other steps. The ferric oxide red powder has impurity content of Si, Al, Ca, Mg, etc. less than 80 ppm, Mn content lower than 0.2 wt% and Fe2O3 content over 99.5 wt%, and is used as soft magnetic material. The present invention has simple technological process, low production cost and high product quality, and may be used in industrial production.

The invention provides a treatment method for an all-vanadium redox flow battery electrode. The method comprises the following steps: with carbon electrode materials of a graphite felt, a carbon felt and the like as raw materials, drying the raw materials after fully soaking in an alkali liquor; carrying out high-temperature activation under protection of an inert gas; and washing and drying the product to prepare the activated carbon electrode materials. The treatment method has the advantages of being simple, simple and convenient to operate and low in cost; the surfaces of the treated carbon electrode materials are etched; the effective reaction area of vanadium ion electron pairs on the electrode surface is increased; the charge transfer impedance of an all-vanadium redox flow battery in a charge-discharge process is greatly reduced, so that the voltage efficiency and the energy efficiency of the all-vanadium redox flow battery under high current density are greatly improved.

The invention discloses a steam eye patch and a making method thereof. Low-temperature steam at 40-50 DEG C can be generated, heating time can last for 20-40min, and the low-temperature steam can heatperiocular skin, accelerate blood circulation and improve cell activity, so that the steam eye patch has effects of relieving eye fatigue, moisten eyes and removing black eyes and eye bags; diatomitein a heating piece has adsorption performance, thereby being capable of effectively cleaning the periocular skin to enable steam to better permeate skin. The heating piece also contains macromolecular setting fiber, thereby having good setting effect; when in use, the steam eye patch can be adjusted timely according to eye shape of different users to better fit eyes; a healthcare skin lotion coated on the surface of inner-layer nonwoven cloth has good healthcare and skincare effects on human bodies, so that compared with conventional steam eye patches, the steam eye patch is richer in function. The making method is simple in process, mild in condition and suitable for mass industrial production of the steam eye patch.