94results about How to "No physical damage" patented technology

The invention provides an expansion-type rotatable tail pipe hanger and belongs to the field of oil gas well fixation. The expansion-type rotatable tail pipe hanger comprises a hanger body and a feeding tool system, wherein the hanger body is an expandable metal tubing, a group of triangle-shaped annular protrusions are formed on the outer surface of an expansion section of the hanger body, annular rubber sections are vulcanized between every two adjacent triangle-shaped annular protrusions, and the diameter of each annular rubber section is larger than the outer diameter of top portion of each triangle-shaped annular protrusion. Rotation of a tail pipe can be realized, tripping-in capability and cement slurry displacement efficiency of the tail pipe are improved, sit-hanging and seal-separating functions of the hanger are realized via a hydraulic expansion hanger body. By the aid of the expansion-type rotatable tail pipe hanger, construction requirements on tail pipe cementation of an oil gas well can be met, and the technical difficulties like complex structure, many potential construction safety hazards and hardness in guaranteeing well cementation quality of a slip-type hanger are overcome. Operation process is simplified, tail pipe cementation quality is improved, risk is reduced, and cost is saved.

The invention discloses an activating agent for flotation of copper-nickel sulfide ores.The activating agent is prepared from a component A and a component B, wherein the component A is copper salt or nickel salt, and the component B is amine, ammonia or ammonium salt.Compared with an existing activating agent for flotation of copper-nickel sulfide ores, the activating agent for flotation of the copper-nickel sulfide ores can remarkably improve the flotation and recovery rate and grade of the nickel-copper the copper-nickel sulfide ores, a good flotation effect can be obtained within the ore pulp pH value range of 7-11, the activating agent adapts to the complicated and volatile ore pulp conditions of industrial flotation, raw materials are cheap and easy to obtain, no harmful gas nor volatile substance is discharged after the activating agent is added into a flotation system, and the activating agent is green, is environmentally friendly, is harmless to the body of an operator and does not corrode flotation equipment.

The invention relates to a method for preparing an infrared cut-off filter, specifically comprising the steps of cutting, shaping, slicing, chamfering, grinding, double-sided chemical polishing, coating, and the like. An infrared cut-off filter prepared by the method has high quality. The rejection rate is low. The production efficiency is high.

The invention relates to the technical field of construction machinery, in particular to a novel building material template cleaning device, which comprises a conveying table, a forward rotation cleaning mechanism, a reverse rotation cleaning mechanism, an upper surface flushing mechanism and a lower surface flushing mechanism, wherein the forward rotation cleaning mechanism and the reverse rotation cleaning mechanism are arranged on the conveying table; a building material template is conveyed through the conveying table; the upper surface flushing mechanism is arranged above the building material template; the lower surface flushing mechanism is arranged below the building material template; a sticky matter on the building material template can be effectively cleaned, and a physical means is used for cleaning, so that the chemical pollution is avoided, the cleaning efficiency is improved, and the production cost is reduced.

The invention relates to a method for cleaning a laser film. The method specifically comprises the steps that a cotton swab dipped with acetone is used for slightly wiping the surface of the laser film, the wiped laser film is put in a first cleaning tank, alkaline solution is filled into the first cleaning tank to clean a sample, and the solution temperature is the room temperature; the volume ratio of the alkaline solution is that NH4OH: H2O2: H2O equals to 1: 10: 50; the obtained solution is respectively subjected to ultrasound for 2-4 minutes at the frequencies of 120 kilohertz-180 kilohertz and 200 kilohertz-300 kilohertz; the obtained sample is put in a second cleaning tank and is rinsed through deionized water, and the temperature of the deionized water is the room temperature; the sample is put in a third cleaning tank 3, the deionized water is added into the third cleaning tank, and the sample is respectively subjected to ultrasound for 3-6 minutes at the frequencies of 120 kilohertz-180 kilohertz and 200 kilohertz-300 kilohertz; and the sample is taken out, repeatedly cleaned and dried to obtains the required product. The method has the advantages that the high cleaning efficiency is realized, organic pollutants and contamination particles on the surface are effectively removed, meanwhile, the laser film cannot be physically damaged, the film is prevented from being eroded and damaged due to the particles which are absorbed to the surface of the film when the film is used in a high-power laser system, and the laser film is enabled to have high damage threshold when being used in the high-power laser system.

The invention relates to a manufacturing method for a sapphire fingerprint recognition panel. The manufacturing method comprises the specific steps of crystal growth, crystal bar drawing, crystal cutting, laser wafer taking, grinding, chamfering, annealing, double-face polishing, film plating, ink smearing, hot drying and the like. According to the manufacturing method for the sapphire fingerprint recognition panel, the quality of finished wafers is high, the rejection rate is low, and the production efficiency is high.

The invention relates to a preservative, in particular to a traditional Chinese medicine preservative for a fish stripping specimen and a preparation method of the traditional Chinese medicine preservative. The method comprises the following steps: cleaning five traditional Chinese medicinal materials, namely rhubarb, coptis chinensis, astragalus membranaceus, falangal and fructus forsythiae; baking at 55-65 DEG C for 45-50 hours, and crushing until the granularity is below 40mesh; weighing all traditional Chinese medicines, putting the weighed traditional Chinese medicines into water, heating in a water bath at 55-65 DEG C for 10-14 hours, and then adding alums; or weighing all traditional Chinese medicines, putting the weighed traditional Chinese medicines into water, decocting into a paste with a slow fire, and then adding the alums; and adding p-nitrophenol to 95wt% ethyl alcohol, pouring the mixture into the medicinal materials in the step (2), stirring into a paste and sealing. The traditional Chinese medicine preservative for the fish stripping specimen has a good broad-spectrum bactericidal effect, is slow to release, nontoxic, healthy, and free of harm to bodies of preparation staff and users, and is capable of ensuring the preservative effect of the specimen for a long period of time; and the preparation method is simple and convenient, low in cost, relatively few in required equipment, and easy to popularize.

A probe (40) includes a shaft (52) on which an ultrasound element (42) is mounted. An outer sheath (64) and an acoustic membrane (66) surround the shaft and the ultrasound element such that the shaft and ultrasound element are rotatable therein. Passages (56) supply a cooling and acoustic coupling fluid to an inlet and outlet (48) adjacent the acoustic element to cool the acoustic element and fill a volume between the acoustic element and the acoustic sheath with the fluid. A balloon (90) mounted on the probe is selectively inflated in order to fix a position of the probe. A drain (94, 98) drains urine and other bodily fluids through the probe.

The invention provides a method for removing red spots on the surface of a pure gold product. The method especially aims at recovery of the color changing part of the surface of the pure gold craft, mainly removal of red spots. The method comprises the steps that firstly, a washing solution is prepared, then the pure gold product with the color changed is put into the washing solution till the red spots disappear, and then the pure gold product is taken out, washed with deionized water and dried. The method has the advantages that the process is simple, the time for removing the red spots on the surface is short, and the surface of the pure gold product has no physical damage; and medium acid is nitric acid, the pure gold is not damaged, and the washing solution is recyclable and easy to wash away after the red spots are removed.

The invention belongs to the technical field of welding, and particularly relates to an aluminium alloy electron beam welding method based on laser cleaning treatment. A machining method is adopted, the to-be-welded face of an aluminum alloy to-be-welded test piece is machined, and the surface quality of the to-be-welded face is improved; a laser cleaning device is adopted for carrying out laser cleaning treatment on the to-be-welded face of the to-be-welded test piece, and oil contamination and non-metallic impurities of the surface of the test piece are removed; a welding clamp and a tool are used for assembling the to-be-welded test piece, and it is ensured that the welding face of the to-be-welded test piece is aligned, clamped and fixed; and an electron beam welding machine is used for welding the to-be-welded test piece. Laser cleaning is used for carrying out before-welding treatment on the material, a workpiece cannot be physically damaged, physical contact is not needed, operation is easy and convenient, and production efficiency is high. After welding, the welding line is good in forming, the welding line surface is free of defects of cracks, air holes, sinking, undercut,weld beading and the like, and welding inner quality and the normal-temperature mechanical property can meet the standard need.

The invention provides a wireless wide area network card and a network accessing method of the same. The wireless wide area network card comprises a chip; a modem module and a USIM (universal subscriber identity module) card are arranged in the chip; the modem module is communicated with the USIM card mutually; and the USIM card is arranged in the chip in a software way. According to the wireless wide area network card and the network accessing method provided by the invention, no entity USIM card exists in the wireless wide area network card, thus, no physical damage of the USIM card exists in the process of adopting the wireless wide area network card to perform network accessing test, and the cost for test can be effectively reduced. Moreover, no additional processes such as packaging, and replacing USIM card exist in the network accessing test process of the wireless wide area network card, thus, the test efficiency can be effectively improved.

The invention belongs to the technical field of welding, and particularly relates to a titanium alloy electron beam welding method based on laser cleaning treatment. The titanium alloy electron beam welding method based on laser cleaning treatment comprises the steps that a machining method is adopted, the faces, to be welded, of titanium alloy test parts to be welded are processed, and the surface quality of the faces to be welded is improved; a laser cleaning facility is adopted to conduct laser cleaning treatment on the faces, to be welded, of the test parts to be welded, and oil stains andnon-metallic impurities on the surfaces of the test parts are removed; welding clamps and tools are utilized to assemble the test parts to be welded, and the situation that the welded faces of the test parts to be welded align and are clamped and fixed is guaranteed; and an electron beam welding machine is utilized to weld the test parts to be welded. According to the titanium alloy electron beamwelding method based on laser cleaning treatment, the laser cleaning is utilized to conduct pre-welding treatment on materials, no physical damage to workpieces can be caused, the physical contact isnot required, the operation is easy and convenient, and the production efficiency is high. A weld joint is well formed after welding is accomplished, the surface of the weld joint is free of the defects such as cracks, pores, pits, undercutting and overlap, and the welding interior quality and the normal temperature mechanical properties can meet the standard requirements.

The invention provides a dip-coating technology for a transverse stabilizer rod, and aims at solving the problem of environment pollution caused by the prior art. A first technical scheme is as follows: the dip-coating technology for the transverse stabilizer rod is characterized in that a treatment method of the transverse stabilizer rod sequentially comprises the following steps of: carrying out shot blasting, cleaning, carrying out epoxy water based paint dip-coating, leveling and carrying out surface drying, baking, and cooling into be up to room temperature. The epoxy water property has the advantages of being environment-friendly, free from environment pollution, non-toxic, and free from burning, and has an integrated bottom surface; and paint is high in use ratio, and simple and feasible to construct. The dip-coating technology is free from injury to human bodies of constructors, and convenient to construct, the yield can be easily improved, the time spent on a salt fog test of the dip-coating technology is longer than that spent on the existing coating level, the hardness of the paint is higher than that of the existing paint by two stages, and the impact resistance can be enhanced.

The invention provides a spray gun of an intensive spraying massager and the intensive spraying massager. The spray gun includes a housing, and a pressurizing mechanism, a liquid inlet mechanism, a liquid outlet mechanism and a flapping mechanism are arranged in the housing; the liquid inlet mechanism is positioned in the middle of the housing and communicated with the liquid outlet mechanism; thepressurizing mechanism is positioned at the end of the housing and communicated with the liquid outlet mechanism; the flapping mechanism is positioned at the other end of the housing and used for flapping the face and stretches back and forth outside the housing. According to the spray gun, through pressurization of a high-pressure air pump, a cosmetic solution and the like are sprayed out through intensive spraying holes and directly sprayed into pores of the skin, the absorption rate of skin care products is ensured, and physical damage of the surface of the skin cannot be caused; through arrangement of flapping silica gel, flapping is conducted on the skin when the skin care products permeate into the skin, and adsorption of the skin care products is facilitated; through arrangement ofa heating sheet, the pores of the skin can be opened under moderate temperature. The intensive spraying massager is provided with a control panel, and adjustment of the temperature, the flapping frequency and the strength of intensive spraying is achieved; the intensive spraying massager is small in size and applicable to families.

The celery harvester includes frame, driving source, walking unit, cutting unit, holding and conveying unit and handle. The driving unit and the driving source are connected together and fixed successively on the bottom of the frame in the moving direction of the harvester, the walking unit is fixed below the frame, the holding and conveying unit is fixed in the front of the frame, the driving source provides the walking unit and the holding and conveying unit with driving force, the cutting unit is fixed on the frame, and the handle is connected to the cutting unit to control the height of the cutting unit. The present invention is simple, and high in work efficiency in harvesting celery.

The invention discloses a shockproof hard disk that includes hard disk identity, supporting frame, and aluminum shell. The feature is that shockproof structure is set between the frame and hard disk identity. When the hard disk is shocked, the shockproof structure would have buffer and damping effect to proof hard disk identity.

The invention discloses a flexible mechanical claw for a teaching mechanical arm, and belongs to the field of mechanical claws. A main body part comprises a fin-shaped flexible claw head, a claw head mounting base, a transverse moving module, a longitudinal moving module and a synchronous driving module. The fin-shaped flexible claw head is of a fin-shaped flexible structure, the whole mechanical claw can be driven by a motor to move in the transverse direction and the longitudinal direction, the functions of tightening and loosening of the mechanical claws in each group at the same time are achieved through a sliding gear, passive adaptive rotation is conducted through a torsion spring, and therefore self-adaptive grabbing of various types of objects can be achieved. According to the whole structure, the structural characteristics of the fin-shaped effect are fully exerted, and the flexible mechanical claw has the advantages of being high in adaptability, good in object enveloping effect, free of damage to grabbed objects and the like, and high in practicability.

The invention relates to a microelectrode biosensing technology, and particularly discloses a microelectrode biosensor for online detection of IAA (auxin) in a living plant. The microelectrode biosensor is characterized in that the specific recognition on the IAA is performed through an IAA-modified antibody on a gold (or platinum) working electrode, and the highly sensitive detection of the IAA is performed through AuNPs (gold nanoparticles) and modified IAA-AuNPs compounds deposited on the electrode. The microelectrode biosensor disclosed by the invention has the advantages that dynamic change information of the IAA in a plant body is mastered in situ and in real time by means of continuously monitoring the IAA in the living plant online, the metabolic process of the IAA is understood, and a theoretical basis is provided for understanding the participation of the IAA in the regulation mechanism of a plant living system; the IAA in the living plant can be continuously monitored online by utilization of the microelectrode biosensor disclosed by the invention, and a to-be-detected specimen is prevented from being essentially damaged; an obtained data result can dynamically reflect the IAA content change in the plant body in real time, and the actual application operation is simple and convenient and is easy to master.

The invention relates to a preparation method of a sapphire fingerprint identification panel, which specifically comprises the working procedures of crystal growth, crystal extracting, crystal cutting, laser slice taking, grinding, chamfering, annealing, double-sided polishing, film coating, ink printing, baking and the like. The preparation method of the sapphire fingerprint identification panel is high in slice forming quality, low in rejection rate and high in production efficiency.

The invention provides an aviation wire harness end laser processing equipment, and relates to the field of aviation wire harness processing. The equipment comprises a bottom plate, a wire clamping mechanism, a rotating mechanism, a laser mechanism and an optical system arranged in the rotating mechanism, wherein the wire clamping mechanism, the rotating mechanism, and the laser mechanism are arranged on the bottom plate in sequence. Laser is adopted for machining the aviation wire harness end, an optical system is driven by a rotating mechanism to surround a machined aviation wire harness byone circle mainly based on a nanosecond short-pulse laser with the wavelength of 405 nm, and high-precision and high-efficiency aviation wire harness end machining serves as the target. And the processing of wire stripping, windowing, longitudinal cutting, regional evaporation ablation and the like of the aviation wire harness end is realized. According to the invention, the wire taking PTFE and PVC as insulating materials is taken as a processed material, the processing time is less than 5s, the fixed-length precision is not more than 0.2 mm, the processing length is 3-30mm, and the wire coreV is physically damaged, so that the equipment is compact in structure, reliable in processing quality, high in processing efficiency, high in processing precision, small in occupied space and convenient to move.