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31 results about "Normal appearance" patented technology

System for detecting solder joint reliability of circuit board by using infrared multipoint temperature measuring heat resistance method

The invention relates to a system for detecting the solder joint reliability of a circuit board by using an infrared multipoint temperature measuring heat resistance method, which belongs to the technical field of cold solder joint detection and solving the problems that according to the conventional detection technology, cold solder joints which have normal appearance and are electrically connected can not be identified. An XY rotatable object stage is arranged on a system platform, an optical microscope camera and an infrared thermal imager are positioned above the XY rotatable object stage; an infrared laser is positioned at the side upper part of the XY rotatable object stage; a displacement signal output end of an object stage driving controller is connected with a displacement signal input end of the XY rotatable object stage; a control signal input end of an infrared laser is connected with a control signal output end of a laser controller; an image signal output end of the optical microscope camera is connected to an image signal input end of a computer; and a collection signal output end of the infrared thermal imager is connected with a thermal imager signal input end of the computer. The system is used for detecting the solder joint reliability of circuit boards.
Owner:HARBIN INST OF TECH

System for detecting solder joint reliability of circuit board by using infrared multipoint temperature measuring heat resistance method

The invention relates to a system for detecting the solder joint reliability of a circuit board by using an infrared multipoint temperature measuring heat resistance method, which belongs to the technical field of cold solder joint detection and solving the problems that according to the conventional detection technology, cold solder joints which have normal appearance and are electrically connected can not be identified. An XY rotatable object stage is arranged on a system platform, an optical microscope camera and an infrared thermal imager are positioned above the XY rotatable object stage; an infrared laser is positioned at the side upper part of the XY rotatable object stage; a displacement signal output end of an object stage driving controller is connected with a displacement signal input end of the XY rotatable object stage; a control signal input end of an infrared laser is connected with a control signal output end of a laser controller; an image signal output end of the optical microscope camera is connected to an image signal input end of a computer; and a collection signal output end of the infrared thermal imager is connected with a thermal imager signal input end ofthe computer. The system is used for detecting the solder joint reliability of circuit boards.
Owner:HARBIN INST OF TECH

Method for preparing nano-level active calcium carbonate for rubber and plastic

The invention belongs to the technical field of the preparation method of calcium carbonate, and particularly relates to a method for preparing nano-level active calcium carbonate for rubber and plastic. The method comprises the following steps of: a, introducing calcium oxide and water into a paddle-type slaker in proportion, leading a calcium hydroxide suspension into a rough pulp chest after sieving, keeping the slurry standing still in the rough pulp chest and carrying out secondary rotary fluid separation on the rough slurry standing still and then entering a size mixing tank; b, leadingthe measured calcium hydroxide slurry into a measuring tank for measurement; c, infusing crystallization guiding agent to a carbonizer according to the concentration of the calcium hydroxide slurry, stirring and entering the carbonizer; d, carbonizing in early stage; e, closing carbon dioxide and introducing the slurry in a boiled size tank; f, introducing the slurry in the boiled size tank in a three-level mixed-flow pump after combining by using a metering pump and a surface active agent metering pump, then entering a static-state mixer and finally entering a homogenizing tank; and g, filtering, drying, grinding and screening the slurry in the homogenizing tank. The nano-level active calcium carbonate for rubber and plastic refers to a cubic particle, and has normal appearance and good dispersibility.
Owner:CHANGZHOU CALCIUM CARBONATE

Special plate making method for anti-copying

InactiveCN108725005ATo achieve the effect of anti-copyingSimple anti-counterfeiting meansPattern printingGraphicsNormal appearance
The invention discloses a special plate making method for anti-copying. The special plate making method for anti-copying comprises the following steps of (1), graphic and text processing, (2), pre-printing network line adjusting, (3), graphics and text merging, (4), plate making, and (5), printing on a copier; anti-copy paper is prepared by mainly using the Kodak Printing Energy Jet pre-printing software, different network lines are added onto the normal appearance graphics and anti-counterfeiting shading in pre-printing network line adjusting, and then merged into the same page, so that a prepared PS board reflects various network line formats in the same printing surface; and the prepared PS is put on a machine for printing to paint the special printing ink (special blue ink), the prepared anti-copy paper can make the normal appearance graphics and text appear after copying of a copier, meanwhile, dimly visible shading can be eliminated before the original copying, and the effect ofanti-copying is achieved. The anti-copy paper prepared by the special plate making method can be used in the technical field of print anti-counterfeiting technologies, and the special plate making method has the remarkable advantages of being simple in anti-counterfeiting method, low in preparation cost and convenient to prepare through the ability to prevent copying and verify the authenticity.
Owner:溧阳市鑫宇印刷有限公司

Positive deviation control method for reverberation room flat and straight acoustic spectrum

The invention discloses a positive deviation control method for reverberation room flat and straight acoustic spectrum. The method comprises the following steps that 1, the acoustic spectrum control condition specified by a testing schedule is analyzed, and whether the acoustic spectrum control condition specified by the testing schedule belongs to the first type nor not is judged; 2, if the acoustic spectrum control condition specified by the testing schedule belongs to the first type, during the system debugging before the test, the positive deviation control method is adopted for improving the nominal value of the acoustic spectrum control condition specified by a testing schedule; 3, the upper and lower allowed difference is reduced, and the controlled sound pressure level is not changed; 4, air supply pressure is provided by using a high-frequency electric appliance transducer, in addition, the deviation value is continuously modified, and until the empty room debugging, the sound pressure level of the high-frequency section is more than 2dB higher than the control lower line. The method provided by the invention has the advantages that under the condition that the existing configuration of hardware including a laboratory electric transducer, a loudspeaker, a control system and the like is not changed, the satisfactory test results are obtained at lower cost, supplementary checking on satellite high-frequency band applicability through supplementary operation of other tests or the test invalidity caused by ground checking insufficiency are avoided, and the normal appearance of a satellite is ensured.
Owner:SHANGHAI INST OF SATELLITE EQUIP

Method for preparing nano-level active calcium carbonate for rubber and plastic

The invention belongs to the technical field of the preparation method of calcium carbonate, and particularly relates to a method for preparing nano-level active calcium carbonate for rubber and plastic. The method comprises the following steps of: a, introducing calcium oxide and water into a paddle-type slaker in proportion, leading a calcium hydroxide suspension into a rough pulp chest after sieving, keeping the slurry standing still in the rough pulp chest and carrying out secondary rotary fluid separation on the rough slurry standing still and then entering a size mixing tank; b, leadingthe measured calcium hydroxide slurry into a measuring tank for measurement; c, infusing crystallization guiding agent to a carbonizer according to the concentration of the calcium hydroxide slurry, stirring and entering the carbonizer; d, carbonizing in early stage; e, closing carbon dioxide and introducing the slurry in a boiled size tank; f, introducing the slurry in the boiled size tank in a three-level mixed-flow pump after combining by using a metering pump and a surface active agent metering pump, then entering a static-state mixer and finally entering a homogenizing tank; and g, filtering, drying, grinding and screening the slurry in the homogenizing tank. The nano-level active calcium carbonate for rubber and plastic refers to a cubic particle, and has normal appearance and good dispersibility.
Owner:CHANGZHOU CALCIUM CARBONATE

Method for quickly judging whether retired battery can be subjected to cascading utilization

InactiveCN108598611AEffective judgmentJudging whether the decommissioned batteries with normal appearance can be reused quickly and efficientlySecondary cells testingWaste accumulators reclaimingCyclic testNormal appearance
The invention discloses a method for quickly judging whether a retired battery can be subjected to cascading utilization. The method includes the following steps: step S1, cycling a battery core to betested at a first multiplying rate for one period at normal temperature, and ensuring that the discharge capacity is a capacity 1; step S2, after standing at the normal temperature for a period of time, cycling the battery core at a second multiplying rate for one period, and ensuring that the discharge capacity is a capacity 2; step S3, after standing at the normal temperature for a period of time, cycling the battery core at a third multiplying rate for one period, and ensuring that the discharge capacity is a capacity 3, wherein the second multiplying rate is greater than the third multiplying rate and less than the first multiplying rate; and step S4, if judging that the capacity 1 is less than the capacity 2 and the capacity 2 is less than the capacity 3, determining that the batterycore is suitable for cascading utilization, and otherwise, determining that the battery core is not suitable for cascading utilization. According to the scheme of the invention, whether the retired battery with a normal appearance can be subjected to cascading utilization is judged through cyclic tests with three different multiplying rates, whether the battery can be subjected to cascading utilization can be quickly and efficiently judged without disassembling the battery, the operation is quick and convenient, the waste can be reduced, and resources can be saved.
Owner:桑顿新能源科技(长沙)有限公司

Production process of high-coverage synthetic paper

The invention provides a production process of high-coverage synthetic paper and belongs to the field of production processes of paper products. The production process of the high-coverage synthetic paper specifically includes the steps of finishing raw materials, synthesizing a base film by using an acrylic adhesive layer, conducting aluminizing on the synthesized base film, conducting fitting onthe base film after aluminizing, conducting double-sided coating on the base film after fitting and conducting finishing and storage. Great printing performance is achieved during ink printing, and the production process has the advantage that the synthetic paper is resistant to bending and water; at the same time, an aluminizing layer fitting the interior of the synthetic paper improves the fitting strength, high coverage performance of a material is achieved with the lowest cost, and the optical density can reach 4.2 or above. The production process adopting a material aluminizing mode forimproving the coverage performance of the material is a simplest and most effective method for improving the coverage performance, the coverage performance of the material can be improved to the greatest extent by using an aluminizing material for opposite fitting, the aluminizing material fits the interior of the synthetic paper, the chromatic aberration of a surface material is not changed a lot, and therefore the normal appearance of the synthetic paper can be ensured.
Owner:无锡和烁丰新材料有限公司

Dialysate filling device

The invention belongs to the technical field of medical equipment, and particularly relates to a dialysate filling device. The dialysate filling device comprises a supporting base, a transport mechanism arranged on the supporting base for transferring a dialysate barrel, an extruding mechanism used for extruding the dialysate barrel and a filling mechanism which is arranged above the supporting base and corresponds to the dialysate barrel in position; the extruding mechanism comprises a bracket arranged above the supporting base and extruding plates which are arranged at the two sides of the dialysate barrel for extruding the dialysate barrel; the two ends of each extruding plate are fixedly arranged on the bracket; a slide slot for allowing the extruding plates to move in a direction of extruding or releasing the dialysate barrel is formed in the bracket; and puller bolts used for fixing the extruding plates are arranged above the bracket. According to the dialysate filling device, the extruding plates used for extruding the dialysate barrel are used for extruding the dialysate barrel to control a reserved space in the dialysate barrel, so that a proper space is reserved for decomposed gas; and gas released in a dialysate storage process has the effect of enabling the dialysate barrel to recover normal appearance.
Owner:TIANJIN TAISHIKANG PHARMA SCI TECHNIC

Zinc Nickel Secondary Cylindrical Alkaline Battery Cap

A zinc-nickel secondary cylindrical alkaline battery cap, which is characterized in that: the chassis is a stainless steel chassis or a nickel-plated chassis, the surface of the contact cap is plated with a nickel layer, the stainless steel chassis or a nickel-plated chassis and a nickel-plated The contact cap is spot welded and fixed; there is a connecting piece on the lower surface of the stainless steel chassis or the nickel-plated chassis; the stainless steel chassis or the nickel-plated chassis and the connecting piece are strip hot-pressed composites; The connecting piece is spot welded and fixed; the connecting piece is made of copper. Stainless steel or nickel-plated chassis, the nickel-plated contact cap is stable to alkaline electrolytes, there is no quality problem of corrosion and blackening, and the appearance quality and normal performance of the battery can be guaranteed; due to the contact cap with the negative electrode of the battery The connecting piece is made of copper, which has no poisonous effect on the negative electrode and can ensure the excellent performance of the battery. It is suitable for use on a series of zinc-nickel secondary cylindrical alkaline batteries; it has the advantages of reasonable structure, excellent electrical performance, good quality, and long service life. .
Owner:JILIN ZHUOER TECH
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