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32results about How to "Help with attachment" patented technology

Novel process for producing low carbon gas shielded welding wire

Disclosed is a novel process for producing a low carbon gas shielded welding wire. The novel process for producing the low carbon gas shielded welding wire includes following steps of (1) raw material selection, (2) surface treatment processes, (3) drawing process and (4) copper plating process, wherein the step (1) includes that as for steel wire rod composition, C is equal to 0.06-0.010%, Si is equal to 0.80-1.00%, Mn is equal to 1.40-1.60%, P or S is smaller than or equal to 0.020%, and Ca is smaller than or equal to 0.0015%; the step (2) includes an acid pickling process and a phosphating process, as for the acid pickling process, pickling solution proportion includes that prewash hydrochloric acid concentration is 5-10%, hydrochloric acid concentration for substrate washing is 15-20% and FeC12 is smaller than or equal to 300g/l, acid pickling time is 10-25minutes, washing is performed by high pressure water instantly after acid pickling, and as for the phosphating process, phosphating solution proportion includes that Ta total acidity is 50-110pt and Fa free acidity is 5-20pt, phosphating temperature is 70-80DEG C and phosphating time is 1-3 minutes. By means of the novel process for producing the low carbon gas shielded welding wire, a chemical adsorption film is formed on the surface of a steel wire rod, a thin phosphating film is formed on the surface of the steel wire rod by mid-temperature phosphating process and short phosphating time, adsorption of surface lubricating agents is more uniform and compact, the steel wire rod is directly drawn to form a finished product wire in an unannealed state after surface treatment, costs are reduced by 50-80 yuan/ton compared with those of common processes, the wire breaking rate is decreased by 70%, and the producing efficiency is increased by 40%.
Owner:TIANJIN IRON & STEEL GRP

Air purifier

The invention provides an air purifier which comprises a base and an outer housing, wherein the base is connected with the periphery of the bottom surface of the outer housing in a supporting manner; an air inlet communicated with a hollow inner cavity is formed in the middle of the bottom surface of outer housing; an air outlet is formed in the upper surface of the outer housing; an inlet filter screen, a filter element, a fan, an outlet filter screen and an air outlet plate are sequentially arranged between the air inlet and the air outlet along the bottom-up circulation direction of air; the inlet filter screen is clung to the air inlet; the outlet filter screen is clung to the lower surface of the air outlet plate; the air outlet plate is arranged at the air outlet; a plurality of air flow through holes distributed uniformly are formed in the air outlet plate; and the air flow through holes are hexagonal. The air purifier has the benefits that the air purification efficiency can be improved; the response time between the filter element and the air is sufficient; the air outlet plate to which settling particles are attached is adopted, so that the sterilization efficiency is high; the impurities in the air are removed effectively; manual cleaning is available; and low carbon and environmental protection are facilitated.
Owner:TIANJIN CHENAN AUTOMATION EQUIP

Production process of compound soybean polysaccharide-based conditioning food anti-ageing instant rice

A production process of compound soybean polysaccharide-based conditioning food anti-ageing instant rice particularly comprises the following steps: polishing rice by a baking soda solution to serve as a raw material rice; and compounding water-soluble soybean polysaccharide, guar gum, fructo-oligosaccharide and carrageenan to obtain an anti-ageing agent, taking the anti-ageing agent and sorbitolas water for cooking rice, putting the anti-ageing agent, the sorbitol and the raw material rice jointly into a packaging box and sealing, and cooking the rice by high-temperature steam to obtain non-dehydrated instant rice. The production process has the following advantages: the baking soda is used in the polishing process of the rice, so that impurities on the surfaces of the rice are eliminated and the adhesive rate of the anti-ageing agent on rice grains is increased; the sorbitol is added in the compound anti-ageing solution, so that the anti-ageing agent can be adsorbed on the surfacesof the rice grains well, permeation of the anti-ageing agent into the rice grains is accelerated, the surfaces of the rice grains are prevented from being dried and cracked and the rice is maintainedfresh and soft; and the composite anti-ageing agent is added in the instant rice, so that starch ageing can be inhibited, the edible quality of starch-based staple food can be improved and the shelf life can be prolonged.
Owner:BOHAI UNIV

Fixing glue for cutting silicon crystal as well as preparation method and application thereof

The invention relates to fixing glue for cutting a silicon crystal as well as a preparation method and application thereof. The fixing glue is prepared form anaerobic glue and a surface accelerator, wherein the anaerobic glue is a single-component sealing adhesive prepared by utilizing an oxygen free radical polymerization inhibition principle; the anaerobic glue has the advantages of good curingspeed, storage stability, bonding strength, chemical medium resistance, easy for degumming and the like, so that the anaerobic glue is used for cutting and fixing various gemstones and crystals in recent years; the anaerobic glue prepared in the scheme has high bonding strength, a rapid curing speed and rapid and complete degumming, and damages to cut gemstones and adhesion strength are not easy to cause; the dosage of organic silicon polyether acrylate, linear cycloaliphatic epoxy resin and tert-butyl peroxybenzoate is increased and part of organic silicon groups are introduced, so that the flowability of the anaerobic glue is reduced, rapid degumming is convenient to realize and adhesion between the anaerobic glue and the crystal is reduced; compared with free silicon including silicon dioxide and the like, the organic silicon groups do not easily form other silicon impurities on the surface of the crystal in a curing and adhesion or degumming process.
Owner:江苏乐美新材料科技有限公司

Carbon-coated aluminum foil and preparation method thereof

The invention provides a carbon-coated aluminum foil and a preparation method thereof. The carbon-coated aluminum foil is composed of a carbon layer of the carbon-coated aluminum foil and an aluminum foil which are combined in a mechanical interlocking mode. The invention also relates to a preparation method of the carbon-coated aluminum foil. The preparation method comprises the following steps: step 1, carrying out surface treatment on the surface of the aluminum foil: carrying out physical texturing or chemical etching treatment; 2, spraying a solvent on the surface of the aluminum foil; step 3, uniformly spraying carbon powder on the surface of the aluminum foil, and carrying out first baking and drying; 4, the aluminum foil is subjected to rolling treatment; and 5, baking and drying the aluminum foil for the second time to obtain the carbon-coated aluminum foil. According to the method, rolling treatment is adopted, in order to force the carbon powder and the aluminum foil to be tightly combined and also in order to enable the carbon powder and the aluminum foil to generate irreversible deformation, a mechanical interlocking structure is constructed at the micro pits, the adhesive force of the coating and the aluminum foil is enhanced, and therefore the purposes that the coating is firm and not prone to falling off are achieved.
Owner:SHANGHAI YUYUAN POWER TECH CO LTD

Preparation method of durable self-adhesive label

The invention discloses a preparation method of a durable self-adhesive label, which belongs to the technical field of self-adhesive label processing, and comprises the following steps: (1) surface paper pretreatment; (2) pretreating backing paper; (3) gluing; (4) carrying out ultraviolet-ultrasonic coupling treatment; and (5) preparing a finished product. The surface paper and the bottom paper of the self-adhesive label are pretreated, cold plasma-magnetic field circulation alternating treatment is conducted on the surface paper, the stability of the mechanical property of the surface paper is guaranteed while the surface activity of the surface paper is improved, and the surface is fine and smooth. Corona treatment is carried out on the backing paper, and a low-temperature plasma area is formed on the surface of the backing paper through corona with a certain working voltage, so that the surface characteristics of the backing paper are improved. Then the surface paper and the bottom paper coated with the adhesive sticker layers are subjected to ultraviolet-ultrasonic coupling treatment, the cohesiveness of the surface to ink is further improved through the acoustic streaming effect, the cavitation effect, the heat effect, the ultraviolet effect and other effects of ultrasonic waves, and on the other hand, the durability of a finished product is improved.
Owner:杭州锐创纸品有限公司

A method for preparing composite phosphating film by doping inorganic nanoparticles

The invention discloses a method of preparing a composite phosphating film by doping inorganic nanoparticles. The method comprises the following steps that the components of, by mass 5-8 parts of phosphate, 7-9 parts of zinc, manganese or calcium salt, 0.6-3 parts of phosphoric acid, 0.04-0.4part of boron nitride, 0.1-1 part of a stabilizer, 6-10 parts of a pH buffer agent, 80-100 parts of water are put into a reaction kettle, and the pH value is adjusted to 2-3 by using an alkali solution, then temperature is heated to 20-40 DEG C, and mechanically stirring and discharging kettle are carriedout; and then a prepared phosphating treatment solution is placed into a phosphating tank, the temperature of the phosphating treatment is increased to 20-40 DEG C, then a steel test piece after rustremoval and oil removal is immersed into the phosphating tank, and after the steel test piece is treated, the steel test piece is washed by water and aired. According to the method, the boron nitrideis used as a nucleation adsorption site of crystal during phosphorization, so that crystal adhesion is facilitated, and a composite phosphating film is formed, the boron nitride is a hydrophobic nanomaterial, the dense composite phosphating film can effectively prevent the permeation of the water in air, and corrosion resistance is excellent.
Owner:SOUTH CHINA UNIV OF TECH

Micro-ecology filter bed

The invention discloses a micro-ecology filter bed. The micro-ecology filter bed comprises a water inlet, wherein an overflow groove is formed below the water inlet, an upper end of the overflow groove is connected with a head end of an overflow board, a tail end of the overflow board is connected with a water inlet portion of an aerobic tank, a plurality of MBBR fixing supports and a sludge hopper are arranged in the aerobic tank, MBBR filler is arranged on the MBBR fixing supports, the sludge hopper is located at a tail end of a water flow direction, a water outlet portion of the aerobic tank is connected with a water inlet portion of a water delivery pipe, a valve is arranged on the water delivery pipe, a water outlet portion of the water delivery pipe is located above a filter bed body, a planting matrix layer, an upper layer geotextile layer, an aggregate layer, a low layer geotextile layer and a gravel layer are laid in the filter bed body from top to bottom in sequence, plants are planted on the planting matrix layer, and a water outlet is formed in the bottom of the filter bed body. The micro-ecology filter bed is suitable for a water body with a low pollution degree or low-load sewage treatment, and has the advantages of being high in degradation efficiency, low in energy consumption, low in building cost and convenient to maintain.
Owner:HOHAI UNIV

A production process of low-carbon gas-shielded welding wire

Disclosed is a novel process for producing a low carbon gas shielded welding wire. The novel process for producing the low carbon gas shielded welding wire includes following steps of (1) raw material selection, (2) surface treatment processes, (3) drawing process and (4) copper plating process, wherein the step (1) includes that as for steel wire rod composition, C is equal to 0.06-0.010%, Si is equal to 0.80-1.00%, Mn is equal to 1.40-1.60%, P or S is smaller than or equal to 0.020%, and Ca is smaller than or equal to 0.0015%; the step (2) includes an acid pickling process and a phosphating process, as for the acid pickling process, pickling solution proportion includes that prewash hydrochloric acid concentration is 5-10%, hydrochloric acid concentration for substrate washing is 15-20% and FeC12 is smaller than or equal to 300g / l, acid pickling time is 10-25minutes, washing is performed by high pressure water instantly after acid pickling, and as for the phosphating process, phosphating solution proportion includes that Ta total acidity is 50-110pt and Fa free acidity is 5-20pt, phosphating temperature is 70-80DEG C and phosphating time is 1-3 minutes. By means of the novel process for producing the low carbon gas shielded welding wire, a chemical adsorption film is formed on the surface of a steel wire rod, a thin phosphating film is formed on the surface of the steel wire rod by mid-temperature phosphating process and short phosphating time, adsorption of surface lubricating agents is more uniform and compact, the steel wire rod is directly drawn to form a finished product wire in an unannealed state after surface treatment, costs are reduced by 50-80 yuan / ton compared with those of common processes, the wire breaking rate is decreased by 70%, and the producing efficiency is increased by 40%.
Owner:TIANJIN IRON & STEEL GRP

High-elasticity anti-ultraviolet polyester fabric processing equipment

The invention belongs to the technical field of fabric processing, and provides high-elasticity anti-ultraviolet polyester fabric processing equipment. The high-elasticity anti-ultraviolet polyester fabric processing equipment comprises a machine frame, a winding roller, a liquid spraying unit, a uniform permeation unit and a feeding flattening unit, and the winding roller and the liquid spraying unit are mounted on the machine frame; the uniform permeation unit comprises a fixed plate, a fifth motor, a rotating disc, a pin shaft, a movable plate, a pressing plate and a third spring, the pin shaft is eccentrically and rotatably mounted on the rotating disc, a pin is fixed to the pin shaft, a groove is formed in the groove wall of a movable groove, and a plurality of protruding teeth matched with the pin are fixed to the side, away from the rotary disc, in the groove at intervals; the feeding flattening unit comprises a workbench and a flattening mechanism, and the flattening mechanism comprises a moving plate, a rotating shaft, a mounting sleeve, a connecting rod, a second spring, a sleeve and a first pressing roller; the uniform permeation unit is arranged, so that a chemical agent can be uniformly distributed on the fabric, the chemical agent can better permeate the fabric, and the quality of the fabric is improved; and the feeding flattening unit is arranged, so that the situation that wrinkles are generated after rolling due to the fact that the side edges of the fabric are curled is avoided.
Owner:江苏海富纺织科技有限公司

Chinese-herbal-medicine banana slices and preparation method thereof

The invention relates to Chinese-herbal-medicine banana slices and a preparation method thereof, and belongs to the field of deep processing of bananas. The Chinese-herbal-medicine banana slices are prepared from bananas, agar powder, sucrose, turnip seeds, fructus rosae laevigatae, common selfheal fruit-spike, semen alpiniae katsumadai, cortex eucommiae, kudzuvine roots, poria cocos, caulis akebiae, and cape jasmine roots. The preparation method of the Chinese-herbal-medicine banana slices comprises the following five major steps of baking banana slices, decocting Chinese herbal medicines so as to obtain a juice, carrying out mixing, carrying out freezing, and carrying out coating with syrup. The banana slices and the Chinese herbal medicines are combined according to the preparation method so that the prepared Chinese-herbal-medicine banana slices are rich in nutrition, good in taste, and fine in flavor; moreover, the Chinese-herbal-medicine banana slices also have the health-care effects of clearing the intestines and the stomach, relieving alcoholism, tonifying the liver, improving the eyesight, clearing away heat, detoxifying, lowering blood pressure, reducing blood sugar and blood lipid, and so on. The preparation method is simple in processes, convenient in operations, capable of shortening processing time and improving work efficiency, and easy to popularize.
Owner:浦北县龙腾食品有限公司
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