342results about How to "Long effective time" patented technology

The invention relates to a refined crystal grain aluminum alloy and the manufacturing method. It is made up from Si 0.2-7.5wt%, Mn 0.05-1.5wt%, Mg 0,05-6.0wt%, Zn 0.03-8.5wt%, Cu 0.05-7.0wt%, Ni 0.1-2.5wt%, Ti 0.01-0.15wt%, RE 0.01-0.3wt%, B 0.0001-0.10wt%, and the rest is Al. The technology feature is that it adds silicon titanium alumina, borax and or rare earth oxide or rare earth carbonate, or titanium oxide, borax and/or rare earth oxide or rare earth carbonate into aluminum cell. Add the manganese oxide, compound of copper or Ni would be also added. Comparing to traditional technology, the refiner is not added, and the refining effect is enhanced and the perdurability is prolonged. It could be used to produce wire, band, tube, panel, aluminum foil, etc.

The invention discloses a method for controlling intelligent defrosting of an air conditioner. The method comprises the step of detecting indoor environment temperature T1, temperature T2 of an indoor heat exchanger and continuous operation time M of a compressor. When the temperature T2 of the indoor heat exchanger is less than setting temperature T4, a temperature difference delta T between the temperature T2 of the indoor heat exchanger and the indoor environment temperature T1 is less than setting temperature T3, the continuous operation time M of the compressor is greater than or equal to setting time M1, and a drop-out value of the temperature difference delta T is greater than or equal to a setting value TS1 or time t used every time when the temperature difference delta T drops by a setting value TS2 is in a range of setting time, the air conditioner operates to defrost. Due to the fact that the relationship of the temperature of the indoor heat exchanger and the indoor environment temperature is detected, the frosting conditions of an outdoor heat exchanger are judged so that whether defrosting is carried out or not can be selected, accordingly, unnecessary defrosting operation is reduced and heating capacity of the air conditioner is increased.

The invention relates to a microbe dredging agent. A porous zeolite is employed as a carrier; and mixed bacteria of actinomycetes, nitrosomonas eutropha, nitrobacter winogradskyi, paracoccus pantotrophus and bacillus megaterium, in a certain proportion, are used as dredging bacteria. The five specific dredging bacteria form a ''cell family'', which, through mutual conversion metabolism, not only can play a role of water purification in an oxygen-rich water area, but also can play a role of biological decomposition and conversion in a low-oxygen even anoxic environment (e.g. water-bed mud) andsalty water area (e.g. gulf), so as to purify sewage and improve water quality. The invention employs a porous zeolite with a high absorptivity as a fixed carrier of the dredging bacteria, so that the dredging bacteria are more firmly fixed and not easily flushed by water; because the zeolite is apt to sinking, the microbe dredging agent of the invention is especially suitable for water-bed dredging of river and lake, etc. In addition, the preparation method of the microbe dredging agent of the invention has mild conditions, a simple technology and advantages of low production costs and benefit for popularization and application.

The invention discloses a combined modified-asphalt root penetration resistance waterproof roll and a preparation method of the combined modified-asphalt root penetration resistance waterproof roll. The combined modified-asphalt root penetration resistance waterproof roll is compounded by a surface layer, an upper waterproof layer, a padding base layer, a lower waterproof layer and a bottom layer. The upper waterproof layer and the lower waterproof layer comprise, by weight: 20% to 60% of asphalt, 15% to 20% of machine oil, 2% to 15% of polyolefin, 3% to 15% of SBS, 10% to 25% of wollastonite powder, 1% to 5% of silicon carbide whisker powder, 1% to 5% of silicon nitride whisker powder, 1% to 10% of calcium carbonate whisker powder, 0.1% to 6% of nano-zinc oxide and 0.5% to 5.0% of chemical root resistant agent. The combined modified-asphalt root penetration resistance waterproof roll has the advantages of being high in strength, strong in impact resistance, excellent in root penetration resistance performance, heat resistant, ultraviolet-resistant, ageing-resistant, long in service life, and capable of being used for roof planting projects of a roof garden, a building floor, the top slab of the basement and the like.

The invention relates to an electrochemiluminescence immunosensor for detecting beta-amyloid protein and construction of the electrochemiluminescence immunosensor. The sensor comprises a magnetic glassy carbon electrode and Fe3O4-expoxy, a mesoporous carbon @Ru(bpy)32+/beta-amyloid protein antibody composite nanometer composite material, beta-amyloid protein to be detected with different concentrations and a gold nanorod-beta- beta-amyloid protein aptamer nanometer composite material, wherein the Fe3O4-expoxy, the mesoporous carbon @Ru(bpy)32+/beta-amyloid protein antibody composite nanometer composite material, beta-amyloid protein to be detected with different concentrations and the gold nanorod-beta- beta-amyloid protein aptamer nanometer composite material are synthesized on the surface of the magnetic glassy carbon electrode in sequence. Compared with the prior art, the electrochemiluminescence immunosensor has the advantages that the constructing method is simple, detection on Alzheimer's disease markers (beta-amyloid protein and the like) is high in speed, high in sensitivity, high in specificity, low in detection limit, wide in detection range and the like, and the application of the electrochemiluminescence immunosensor provides a new thought for early diagnosis of the Alzheimer's disease and detection of markers of other diseases.

The invention discloses a formula and a preparation technology of a machine tool working solution. The formula of the machine tool working solution is characterized by comprising the following materials: 10-20 parts of dodecenylsuccinic acid, 5-10 parts of petroleum sodium sulfonate, 5-7 parts of alkylphenol ethoxylates, 2-6 parts of edible calcium benzoate, 5-7 parts of polyethylene glycol, 2-7 parts of sodium phosphate, 5-10 parts of barium petroleum sulfonate, 5-8 parts of tricthanolamine, 5-8 parts of sodium dodecyl sulfate, 2-4 parts of ethylenediamine tetraacetic acid, 1-3 parts of rosin, 1-2 parts of defoaming agent and the balance of deionized water. According to the preparation technology of the machine tool working solution, the machine tool working solution is prepared from the materials through three steps. The technical problem to be solved by the invention is to provide the formula and the preparation technology of the machine tool working solution; and the cutting solution provided by the invention does not contain sodium nitride, machine oil or heavy metals, is harmless to hands and does not cause the falling of paint.

The invention relates to a process for stirring type multi-kettle continuous oxidation preparation of trimellitic anhydride with 1,2,3-trimethylbenzene as raw materials, acetic acid as solvent, tetrabromoethane as promoter, and cobalt acetate and manganese acetate as catalyst. Three and four stage cascade oxidation reaction kettles with stirring device are employed, the temperature of kettle is 160C.í½250C. with step type temperature rise among kettles, and pressure is 1.8í½3.2MPa (absolute pressure); Two and three stage cascade anhydride-forming reaction kettles with stirring device are employed with the temperature of kettle of 160C.í½250C. and pressure of 0.08MPaí½0.12Mpa (absolute pressure). Said materials are added separately in proportion in oxidation reaction kettle, and fed into multi-stage cascade reaction kettle with stirring device through pipeline connection by pump power, liquid phase continuous oxidation, anhydride-forming, purification are carried out with stirring to produce trimellitic anhydride. Miulti-kettle continuous production can prevent frequent operation of temperature and pressure control.

The invention belongs to the technical field of cat litter, and provides deodorant plant cat litter and a preparing method thereof. The deodorant plant cat litter is prepared from, by weight, 60-70 parts of soybean fibers, 25-35 parts of corn starch, 10-20 parts of sodium bicarbonate, 5-10 parts of zeolite, 4-6 parts of citric acid, 1-3 parts of sodium phenylpropionic acid, 3-7 parts of active carbon, 2-5 parts of ammonium persulfate, 2-4 parts of guar gum, 1-5 parts of a garlic extract, 1-3 parts of tea residues and 0.5-1 part of polyethyleneimine. By means of the deodorant plant cat litter and the preparing method thereof, the technical problem that cat litter in the prior art is poor in antibacterial deodorant effect is solved.

The invention discloses a defrost control method for air conditioners. The defrost control method includes S1, detecting running time M of compressors in heating modes; S2, detecting indoor temperatures T1 and pipe temperatures T2 of indoor heat exchangers to obtain difference values DeltaT if the running time M is longer than first preset time M1; S3, comparing the difference values DeltaT with one another to obtain the maximum value DeltaT<MAX> of the difference values, judging whether values DeltaH are larger than first preset values TS1 or not, and comparing the difference values DeltaT with second preset values TS2; S4, enabling the air conditioners to enter defrost stages when the values DeltaH are larger than or equal to the first preset values TS1, the difference values DeltaT are smaller than the second preset values TS2 and the running time M is longer than or equal to time M2; S5, completing defrost when defrost time is up. The difference values DeltaT meet an equation of DeltaT=T2-T1. The values DeltaH meet an equation of DeltaH=DeltaT<MAX>-DeltaT. The defrost control method for the air conditioners in an embodiment of the invention has the advantages that frostless defrost states of the air conditioners can be prevented, and heating effects of the air conditioners can be guaranteed.

The disinfectant is one kind of complex containing quaternary ammonium salt cationic surfactant and iodine. It is produced through mixing the quaternary ammonium salt compound and iodine and reacting for 1-2 hr. It is used mainly for disinfection in animal raising and aquiculture, and has high sterilizing and algae-killing efficiency and high safety.

The invention discloses a gas extraction hole-drilling hole-sealing device and a hole-sealing method. The hole-sealing device comprises an extraction pipe body, a grouting channel, an extraction channel and a repair material channel are formed in the extraction pipe body, and a first bag and a second bag fixedly sleeve the extraction pipe body in turn; a first low pressure slurry outlet and a second low pressure slurry outlet are separately formed in the first bag and the second bag by the grouting channel, and a high pressure slurry outlet is formed in the grouting channel between the first bag and the second bag; a slurry returning port is formed in the extraction channel between the first bag and the second bag; a first repair material outlet and a second repair material outlet are formed in the first bag and the second bag separately by the repair material channel; a third repair material outlet is formed in the repair material channel between the first bag and the second bag; andthe gas extraction hole-drilling hole-sealing device further comprises a hole connection plug. According to the gas extraction hole-drilling hole-sealing device and the hole-sealing method, the problems that gas extraction is prone to being blocked, gas leakage frequently occurs, the extraction effective time is short in gas extraction hole-drilling can be effectively solved.

The invention belongs to the technical field of metal joining and particularly relates to an inertial friction welding method based on preheating by friction. The inertial friction welding method comprises the following steps: 1) firstly, fixing workpieces to be welded respectively through a rotary fixture and a mobile fixture, contacting the workpiece at a mobile end with the workpiece at a rotary end, applying a pre-tightening force to the workpieces, driving the rotary end to rotate, and preheating welding surfaces of the workpieces, wherein the pre-tightening force cannot be greater than afriction pressure in the inertial friction welding process; 2) after the rotation speed of the rotary end reaches a set rotation speed, increasing the applied pre-tightening force to the friction pressure, and disconnecting the connection between a spindle and a flywheel to allow the rotary end to continue rotating by the inertia of the rotary end; and 3) after the amounts of shortening, caused by friction, of the workpieces, reach a set value, or after the rotation speed drops to a set value due to friction, increasing the applied friction pressure to a upsetting force, maintaining the pressure, and ending the welding. The inertial friction welding method of the invention widens the parameter window of the inertial friction welding process, effectively utilizes the welding capability offriction welding, and further improves the industrial application value of the friction welding technology.

The invention discloses the structure, the preparation process and the usage of a novel 3-substituted indole compound .The invention is characterized in that carbon 3-position of the indole is introduced with the selenium and is then connected with other substituents, which improves the stronger plant growth regulating function relative to the indole acetic acid. The compound of the invention can also be taken as an enriched selenium agent of the plant.

The invention discloses a driving method and a driving circuit of a liquid crystal panel and a liquid crystal display device. The driving method of the liquid crystal panel comprises a scanning driving process and a data driving process, wherein an overlap region is formed in the middle of switching from driving of an upper row of scan line to driving of a lower row of scan line; and the data diving process comprises a step of outputting a data signal corresponding to the lower row of data line after the data signal corresponding to the upper row of scan line continues to the overlap region. According to the driving method, the wiring of the liquid crystal panel is reduced, the corresponding control signals are reduced, the design difficulty is reduced, and the specification of a required control chip is correspondingly reduced to fulfill the aim of reducing the cost.

The invention provides a biological culture device based on a hemodialyzer. The biological culture device comprises the hemodialyzer, a circulating pump, a swing weighing device, a sample collecting and storing device, a medicine-dosing device and a culture bag. The culture bag comprises a main culture bag and an auxiliary culture bag. The main culture bag is connected with the two ends inside a hemodialyzer main body to form a main circulation loop, and the auxiliary culture bag is connected with the two ends outside the hemodialyzer main body to form an auxiliary circulation loop. The sample collecting and storing device and the medicine-dosing device are connected with a pipe between the main culture bag and the hemodialyzer. The biological culture device is a cell or bacterium culture device which can monitor culture conditions, keep the monitor culture conditions stable, perform automatic liquid adding and sample, can simulate medicine concentration changes and is based on the hemodialyzer.

The invention relates to a disinfectant for a pond water body, comprising the following components in parts by weight: 10-100 parts of potassium ferrate, 100-300 parts of polymeric aluminium, 200-500 parts of polymeric ferric sulphate and 100-700 parts of clinoptilolite. Ferrate used in the invention is taken as a non-chlorine water treatment agent, bacteria, viruses and algaes in water can be rapidly killed, organic matters, inorganic matters and heavy metal ions in the water also can be removed, and the effects of disinfection, decolourization, deodorization and coagulation assistant can be realized. The disinfectant for the pond water body disclosed by the invention has reasonable components and low cost, is simple to prepare and is convenient to use, development and application curative effects are assured, toxic and side effects are small, and application range is wide.