112results about How to "Short removal time" patented technology

The invention discloses a device for removing low-melting-point alloy from the inner cavity of a blade. The device comprises an oil tank; the bottom of the oil tank is connected with a cooling tank through a pipeline with a valve; the cooling tank is connected with a heater with an oil pump through a pipeline; a spraying opening is formed in the side wall of the oil tank; a mounting disc which can lift and rotate is arranged above the oil tank; the mounting disc comprises a mounting ring which is connected through supporting ribs; the mounting ring is provided with a plurality of groups of mounting frames which are used for clamping blades; after the blades are clamped by the mounting frames, the overall height of the mounting ring and the blades thereon is 1/10 of the height of the oil tank. According to the device for removing the low-melting-point alloy from the inner cavity of the blade provided by the invention, on one hand, the low-melting-point alloy removal time is effectively shortened, and on the other hand, no residue on the inner cavity of the blade which is subjected to a removal operation is also effectively guaranteed; in addition, a low-melting-point alloy removing operation can be performed continuously in batches; the work efficiency is greatly improved.

The invention provides a water-soluble salt core type metal powder injection molding technology and relates to the technical field of metal powder injection molding. The technology comprises the steps of mixing, water-soluble salt core preparing, mold core inlaying and mold clamping, injection molding, core-removing drying, degreasing and sintering. According to the technology, a fused and poured water-soluble salt core forms a part cavity and can be dissolved and removed through clean tap water at indoor temperature, the removal time is short, the safety is high, the environmental friendliness is high, and the potential problems of production insecurity, environmental pollution and strength reduction of green bodies caused by polymer core removal can be effectively solved. Part products manufactured through the technology are uniform in internal structure, high in compactness, high in surface smoothness, high in dimensional precision and stable in quality, a great deal of time and cost are saved for volume production of small and precision parts provided with closed or complicated cavity structures and made of various metal materials, the economic benefit is good, and the application prospect is good.

The invention relates to a binder which comprises the following components according to weight percentage: 15 percent to 25 percent of chlorinated polyethylene, 15 percent to 25 percent of polyformaldehyde, 3 percent to 10 percent of rubber, 20 percent to 30 percent of petroleum wax, 15 percent to 25 percent of Brazil wax (palm wax), 1 percent to 5 percent of stearic acid and 1 percent to 5 percent of epoxidized soybean oil. In the forming technique of metal powder, the binder can improve the strength of blank, reduce the damage of the blank and improve the finished yield and the production efficiency.

A liquid detergent consists of aliphatic alcohol polyethenoxy ether sodium sulfate 5-15 proportion, lauryl sodium benzenesulfonate 2-10 proportion, fatty acid diethanolamine 1-8 proportion, hydrogen peroxide 2-6 proportion, ammonia water 0.5-5 proportion and water 40-92 proportion. It spends 30 s-6 mins in eliminating various mechanical and edible stains, blood stain, ball-pen ink, beverage stain and tea stain. It shortens washing time to 4-8 mins and costs 0.5-0.8 yuan/kg and is economical.

The invention relates to a preparation method of titanium foams for cancellous bone. The preparation method comprises the following steps of: (1) mixing raw materials, namely selecting a primary mixture which is obtained by uniformly mixing titanium powder and a pore forming agent in a grinding body, wherein the mass part ratio of the titanium powder to the pore forming agent is (42.8-48.2):(52.8-58.2); (2) carrying out one-direction pressing on the primary mixture by adopting a universal material testing machine to prepare a green pressing body, wherein the one-direction pressure is 200-250MPa, and the pressure holding time is 1 minute; and (3) putting the green pressing body into a vacuum carbon tube furnace, sintering the green pressing body for 2 hours at 1200-1300 DEG C in an argon protective atmosphere to ensure that the pore forming agent is removed, and finally cooling along with the furnace to obtain the titanium foams. According to the titanium foams prepared by using the preparation method, the Young modulus is matched with that of the cancellous bone of the human body, therefore the stress shielding phenomenon is effectively avoided, and an implant can be permanently fixed; and meanwhile, the titanium foams can be prevented from being oxidized as far as possible by adopting the argon protective atmosphere.

The invention discloses a preparation method for a high-efficient photocatalyst-nanometer titanium dioxide water-based colloid. The preparation method comprises the following steps: adopting metal titanium as titanium source; adopting hydrogen peroxide to oxidize nulvalent metal Ti into quadrivalent TiO<2+>; further conducting complexing on the TiO<2+> and the hydrogen peroxide to obtain water-soluble TiO[H2O2]<2+> yellow complex; obtaining yellow complex colloid after evaporating and removing excess hydrogen peroxide and ammonia; conducting hydrothermal reaction by high pressure water of 150-200 DEG C; transporting the TiO[H2O2]<2+> yellow complex into pure white Ti(OH)4 water-based emulsion; adding mineral acid to adjust the pH value of the emulsion to the range of 2-4; conducting temperature control to enable the temperature of water bath to be 60-80 DEG C; continually stirring for 3-6 hours to enable the Ti(OH)4 water-based emulsion to gradually gel into nanometer titanium dioxide water-based colloid. The preparation method uses no organic solvent; no waste water or waste gas generates in the reaction process; particle diameters of colloid granular are less than 10 nanometers; degree of crystallinity is high; high photocatalytic activity is provided; coating property and film forming property on porous base material are extremely good.

The invention discloses a preparation technology of a nano titanium dioxide thin film. The preparation technology comprises the steps of oxidizing metal titanium Ti with zero valent into tetravalent titanium TiO2<+> by using hydrogen peroxide, further complexing TiO2<+> with hydrogen peroxide to form a water-soluble TiO[(H2O2)]<2+> yellow complex, removing excessive hydrogen peroxide and ammonia during evaporation to obtain a yellow complex colloid, then converting the TiO[(H2O2)]<2+> yellow complex into pure white Ti(OH)4 aqueous emulsion by high-pressure hydrothermal reaction under the temperature of 150-200 DEG C, adding inorganic acid to adjust the PH of the emulsion to be in a range from 2 to 4, controlling the temperature of a water bath at 60-80 DEG C, continuously stirring for 3-6 hours to gradually colloidize the Ti(OH)4 aqueous emulsion into a nano titanium dioxide aqueous colloid, spraying the nano titanium dioxide aqueous colloid to the wavy surface of a multihole ceramic plate and the inner wall of a conical hole through a spraying gun, and sintering under the temperature of 400-550 DEG C to form the firm nano titanium dioxide thin film. In a reaction process, production of wastewater and waste gas is avoided, and the crystallizing degree is high; the nano titanium dioxide thin film is extremely high in light catalysis activity and high in film forming performance.

The invention relates to the field of cleaning agents, in particular to a cleaning agent for cleaning calcium sulfate scales, barium sulfate scales and strontium sulfate scales. The cleaning agent comprises the following components in percentage by volume: 5-30 percent of NaOH, 0.5-1.5 percent of ethylenediamine tetraacetic acid, 0.2-0.6 percent of alkylphenol ethoxylate, 0.2-0.4 percent of fatty alcohol-polyoxyethylene ether phosphate and the balance of water. Furthermore, the invention discloses a preparation process and an application of the cleaning agent. The cleaning agent disclosed by the invention has a simple formula; and under the cooperative and synergistic actions of components, descaling capacity is increased effectively.

The invention relates to a preparation method of a lanthanum oxide-based ceramic core. The method comprises the following steps: ball milling and mixing are carried out for lanthanum oxide powder and additive powder, after paraffin melts, the mixed powder is gradually added, mechanical stirring is carried out, and composite ceramic core slurry is obtained; an injection moulding method is used for preparing the lanthanum oxide-based ceramic core of a required shape; a powder embedded sintering process is used for sintering the lanthanum oxide-based ceramic core, and the required ceramic core is obtained; finally, the required lanthanum oxide-based ceramic core is packaged with vacuum or inert atmosphere protection in order to be isolated from air till usage. The preparation technology and method of the lanthanum oxide-based ceramic core is simple and has good operationality; the lanthanum oxide-based ceramic core has high strength and high yield, and can be used with a higher casting temperature; the core is easy to remove during the removing phase of the core, so that efficiency is improved, and production cost is reduced.

The invention discloses a metal surface rubber body removal method, and a metal and a rubber body are bonded through an adhesive, and the method comprises the following steps: (1) a bonding part of the metal and the rubber body is completely submerged in a swelling separation solution until the rubber body is separated from the metal surface; (2) the metal with the rubber body separated is taken out, and an adhesive bonding part of the metal is completely immersed into a separating agent until the adhesive is completely separated. A chemical treatment liquid capable of dissolving the whole rubber body is not used, the swelling separation solution for swelling separation of the rubber body is used, and the used separating agent is also environmentally friendly, so that the pollution is less; the rubber body is removed by swelling of the adhesive rather than the entire dissolution, so that the removal time is shorter; the swelling can be repeatedly used, and the separating agent is environmental protection, so that the degumming wastewater treatment is relatively simple.

The invention discloses a method for removing cadmium off porphyra haitanensis. The method is implemented by putting fresh porphyra haitanensis and de-ionized water in weight volume ratio of 4.5-5.5:25 into a container, moving the container into an ultrasonic extractor, and performing ultrasonic treatment to the porphyra haitanensis in the container in the interval ultrasonic way of using ultrasonic wave for o.3-0.6 seconds and pausing for 0.7-0.4 seconds with ultrasonic wave temperature being 25-45 DEG C and ultrasonic wave frequency being 25kHz; after the ultrasonic treatment with the above way and conditions, the removal rate of cadmium off porphyra haitanensis can reach above 63%, the residual quantity of cadmium in porphyra haitanensis meets the requirement of national standard basically, thus reducing harm to human bodies of people and especially children after eating, not causing contamination to porphyra haitanensis, having little influence on quality of porphyra haitanensis, less removal time, high speed and high removal rate.

The invention discloses a discharging mechanical arm of an injection moulding machine. The discharging mechanical arm comprises a fixing pedestal, wherein a telescopic vertical column is vertically arranged above the fixing pedestal; a rotating plate is arranged on the top of the telescopic vertical column; a top plate is horizontally connected to the upper side of the rotating plate; a first guide rod is vertically arranged below the top plate and in the length direction; a moving block is arranged on the first guide rod; a mounting plate is connected to one end of the bottom of the top platethrough a connecting rod; a second motor is fixed to the mounting plate through screws; a second screw rod is connected to an output shaft of the second motor through a shaft coupler; the second screw rod and the first guide rod are parallel to each other; a moving guide ring is welded to one side of the moving block. The discharging mechanical arm rapidly clamps a workpiece through a movable plate and a fixed plate and clamps the workpiece in an adsorbing manner through sucking discs, so that the workpiece is firmly fixed, removal of the workpiece is facilitated and damage of the workpiece is effectively avoided; in addition, the workpiece removing operation is simple, convenient and fast, the workpiece removing time is short, and thus the production efficiency is effectively improved.

The invention discloses a method for rapidly removing a thermal spraying coating. A sand blasting material adopts alloy sand with diameters being 0.5-5.0 mm, special-shaped alloy sand with the ratio of length to width being 1.0-5.0 as well as 10-50-mesh ceramic sand, wherein the mass ratio of the alloy sand to the special-shaped alloy sand to the ceramic sand is (1-4):(1-4):1; before sand blasting, three raw materials are uniformly poured into an iron barrel simultaneously, mixing of the raw materials is facilitated, the mixed sand in the iron barrel is poured into a sand tank for sand blasting, and the air source pressure for sand blasting is 0.5-0.9 MPa. The sand composition is optimized and improved, the air source pressure is increased, the removal time of an old coating is greatly shortened, and compared with the time for old coating removal through single ceramic sand blasting, the time is shortened by 60%-75%; meanwhile, the production cost is reduced, the old coating is economically and efficiently removed, and the method is suitable for removing various metal coatings, alloy coatings and metal ceramic coatings.

The invention relates to the technical field of an apparatus for removing a photoresist, and discloses an apparatus for removing the photoresist at edge of a substrate. The apparatus for removing the photoresist at edge of the substrate comprises a spray washing apparatus, the spray washing apparatus comprises a liquid nozzle for injecting a photoresist solvent and a gas nozzle for injecting gas, gas injected from the gas nozzle blows the photoresist solvent at the edge of the substrate to the outer side of the substrate, the gas nozzle and the liquid nozzle are respectively the slit-shape gas nozzle and the slit-shape liquid nozzle; the gas injected from the slit-shape gas nozzle is fallen on the surface of the substrate to form a first slit zone, the liquid injected from the slit-shape liquid nozzle is fallen on the surface of the substrate to form a second slit zone, and the first slit zone and the second slit zone are not overlapped. According to the technical scheme, by employing the slit-shape gas nozzle or the slit-shape liquid nozzle, gas or liquid is smoothly injected, sputtering of the photoresist solvent can be avoided, and the generation of the adverse phenomenon of the substrate due to sputtering of the photoresist solvent in the substrate can be avoided.

The invention relates to the technical field of transformer oil and in particular relates to a metal-organic framework material as well as a preparation method and application thereof. The invention provides the preparation method of the metal-organic framework material; the preparation method comprises the following steps: mixing an organic ligand, inorganic salt, ethanol water and dimethylformamide or diethylamide and reacting to obtain a powdery metal-organic framework; then granulating and molding to obtain a granular metal-organic framework. According to the method provided by the invention, the metal-organic framework material is obtained through granulation and molding, so that the metal-organic framework material has a stable shape and has large specific surface area, pore capacityand pore diameter. Compared with other adsorbents with the same use amount, the metal-organic framework material provided by the invention has a high adsorption amount on degraded transformer oil andhas high-efficiency and excellent adsorption performance, so that the dielectric loss reduction rate of the degraded transformer oil can reach 98 percent or more and the volume resistivity rising rate can reach 1919.42 percent at maximum; both the interface tension of the transformer oil and the color of an oil sample are improved.

The invention relates to a system for deeply removing VOC from a polypropylene material and drying the polypropylene material. The system comprises a raw material tank for placing a polypropylene material to be treated; a steam reactor, which comprises an inner shell and an outer shell, wherein a space between the inner shell and the outer shell is an interlayer, a space in the inner shell is an inner container, the inner shell is provided with a material inlet/outlet, a condensate outlet and a vacuum interface, the outer shell is provided with a heating medium inlet/outlet, the material inlet/outlet is communicated with the raw material tank through a feeding pipeline, and the heating medium inlet/outlet is communicated with a steam pipeline; a condensate tank, which is communicated withthe condensate outlet of the steaming reactor through a condensate pipeline; a vacuum pump, which is communicated with the vacuum interface of the steam reactor through a vacuum pipeline, wherein thevacuum interface is also communicated with the steam pipeline; and a product bin, which is used for placing the treated polypropylene material. The invention also relates to a method for deeply removing VOC from a polypropylene material and drying the polypropylene material.

The invention provides an eliminating method for low-melting-point alloy of blade inner cavities. The eliminating method comprises the following steps that (A) a plurality of blades are clamped on a mounting disc through mounting frames according to the same encircling direction, conveyed oil in a cooling tank is sprayed into an oil barrel through a spraying opening after being heated till the temperature is 180 DEG C, and the mounting disc is lowered to enable the blades to be stored in the hot oil of the oil barrel for 5-8 min; and (B) the mounting disc begins to revolve according to the speed being 20-30 RPM, after revolving is conducted for 8-10 min, the mounting disc is lifted to enable the bottom face of the mounting frames to rise to the position above the oil barrel, and thus eliminating of the low-melting-point alloy of the blades is completed. According to the eliminating method for the low-melting-point alloy of the blade inner cavities, on the one hand, the eliminating time of the low-melting-point alloy is effectively reduced; and in addition, the effect that the blade inner cavities after eliminating operation is free of residues is effectively guaranteed, and additionally, low-melting-point alloy eliminating operation can be continuously conducted in batches, so that working efficiency is greatly improved.

A continuous machine (100) for coating substrates (103) comprises a process module (130) and a vacuum lock (110, 150) for introducing the substrates (103) or removing the substrates (103). The vacuum lock (110, 150) comprises a chamber for receiving a substrate carrier (102) with a plurality of substrates (103) and a flow channel arrangement for evacuating and venting the chamber. The flow channel arrangement comprises a first channel for evacuating and venting the chamber and a second channel for evacuating and venting the chamber, wherein the first channel and the second channel are arranged at opposing sides of the chamber.

The invention discloses a processing method for a hard alloy extrusion mould. The processing method comprises the following steps: according to the shape of the hard alloy extrusion mould, designing electroplated diamond grinding wheels with corresponding matched shapes; arranging the electroplated diamond grinding wheels on a milling machine and a processing centre, and driving the electroplateddiamond grinding wheels to grind a semi-finished product of the hard alloy extrusion mould to remove a remaining material of the semi-finished product of the hard alloy extrusion mould; and after theelectroplated diamond grinding wheels finish grinding, trimming the hard alloy extrusion mould by utilizing an electrical discharge machine to complete a preset shape. According to the processing method for the hard alloy extrusion mould, the remaining material of the hard alloy extrusion mould is ground by utilizing the electroplated diamond grinding wheels, so that the remaining material removaltime is shortened; the processing efficiency is improved; and the production cost is reduced.