158results about How to "No burns" patented technology

The invention provides a self-adhesive polymer modified bituminous polyester fiber waterproof sheet material and preparation technology thereof. The waterproof sheet material comprises polyester cloths, an immersion oil coating layer and a film-mulching layer. The immersion oil comprises the following materials in parts by mass: 37-47 parts of bitumen, 8-18 parts of machine oil, 5-10 parts of SBSrubber, 2-12 parts of SBR rubber, 2-12 parts of EPDM rubber powder, 2-7 parts of butyl rubber powder, 25-35 parts of talc powder and 1-10 parts of petroleum resins. The bitumen is 90# one. The invention has the effects as follows: the waterproof sheet material uses the EPDM modified bitumen as the base material and polyester cloths as the matrices; the back of the adhesive side is covered by the reinforced self-adhesive waterproof sheet material of abherent, thus achieving the effect of sticking while adhering and improving the construction efficiency; the waterproof sheet material is characterized by solvent-free construction, safety and no scald; the waterproof sheet material has shining surface and good elasticity, and the properties of the waterproof sheet material are not obviously changed after aging through laboratory test.

The invention discloses a cold plasma discharger. The cold plasma discharger is characterized by comprising a hand-held housing, the housing is provided with a control switch, the inner wall of the housing is provided with a metal shield net layer, the housing is internally provided with a power supply and an electrode (hereafter referred to wrapped electrode for short) wrapped by an insulation medium, the wrapped electrode is installed at one end portion of the housing, and the other end of the housing is provided with a power supply lead wire plug. When human skin approaches or contacts the wrapped electrode at the end portion of the housing, cold plasma discharge is generation between the human skin and the wrapped electrode. The cold plasma discharger has the effects of sterilization and disinfection for human skin surface.

The invention particularly relates to a high-precision blade part efficient and precise grinding microcrystal ceramic corundum grinding wheel and a machining method of the grinding wheel. The grinding wheel comprises a non-grinding layer part and a grinding layer part, and is characterized in that the non-grinding layer part comprises 100 parts of WA No.120, 16-20 parts of binding agents, one to four parts of adhesives and three to six parts of wetting agents; the grinding layer part comprises 50 parts of CA No.60-120, 50 parts of WA No.60-120, 8-14 parts of bonding agents, one to four parts of wetting agents and 6-15 parts of pore-forming agents. The machining method of the grinding wheel is characterized by comprising the following steps of (1), material preparation and mixing, (2), forming, (3), drying and (4), firing. The grinding wheel has the advantages of having the deep cutting performance, large feeding performance, heavy load performance and efficient grinding performance, being high in durability, long in service life, good in self-sharpening performance, free of blocking, low in cost and good in grinding stability and the like.

The present invention relates to abrasive belt, and is especially one kind of powerful zirconia corundum supported abrasive belt comprising cloth base, adhesive and grinding material zirconia corundum adhered onto the cloth base. It features the adhesive comprising thermosetting phonetic resin 28-36 wt%, diphenol propane type epoxy resin 4-8 wt%, melamine resin 1-4 wt%, boron 0.2-0.6 wt%, dispersant 0.1-0.3 wt%, coupling agent 0.1-0.3 wt%, diluent 3-6 wt%, fluoride salt 45-60 wt%, fluoride of inert gas 0.5-1 wt%. The abrasive belt has high heat resistance high adhesion strength at high temperature, capacity of softening metal surface and lowering surface hardness, no damage to metal surface and high grinding efficiency.

The invention belongs to the field of medical instruments and auxiliary devices, and in particular relates to an electrode for nerve electrophysiology monitoring in high field intensity magnetic resonance compatible technology. The electrode comprises a probe electrode and a pin electrode, wherein the probe electrode is a spherical probe electrode, and the pin electrode is a pin-shaped electrode. The spherical probe electrode is composed of a head portion, an electrode rod, a handle, a wire and a plug. The pin type electrode is composed of a pin-shaped head portion, a handle, a wire and a plug. The wire penetrates through the handle to be welded with the head portion through silver, and the other end of the wire is rivet joint with the plug. A high field intensity magnetic field has small influence on the electrode for monitoring, and a heat effect and a displacement effect are small. The electrode for monitoring does not generate extra current and tissue burn, and can be safely applied in a high field intensity environment without interfering magnetic resonance imaging. A recording electrode does not need to be removed when nerve electrophysiology monitoring is performed, image analysis is not influenced, and operation is convenient, simple and standard.

The invention discloses an induction brazing welding method for a metal part. The method utilizes induction brazing welding equipment and then is implemented according to the following steps of: a step 1 of selecting the induction brazing welding equipment and determining related parameters; a step 2 of carrying out weldment surface processing, i.e. roughening the welding surface of a weldment, processing the metal-plated surface of the weldment, carrying out matched selection between the weldment and a soldering flux, a brazing filler metal, a welding temperature and a brazing clearance and selecting each process parameter of induction brazing; a step 3 of assembling and fixing the weldment; and a step 4 of implementing welding. According to the induction brazing welding method disclosed by the invention, the induction welding and the induction brazing welding of structures of different materials, pipe fittings, sheets, tube plates and the like are implemented, the sealing performance of a weld joint is improved, the intensity of the weld joint is reduced, the electrical conductivity is obviously improved, and the weld joint has a reliable quality.

The invention relates to the technical field of grinding wheels and particularly relates to a multifunctional resin grinding wheel and a production method thereof. The grinding wheel comprises the following components in percentage by weight: 20-30% of silicon carbide, 20-30% of white fused alumina, 20-30% of brown fused alumina, 15-20% of a binding agent and 10-15% of cryolite, wherein the binding agent is phenolic resin liquid or powder. The grinding wheel can be used for cutting various materials and has better cutting performance; the grinding wheel has lower unit weight than a conventional product with the same specification, and every grinding wheel can save the molding material by 10-20g; and the grinding wheel is good in sharpness, incapable of generating a burn injury phenomenon when being used for cutting stone, ceramic tiles, iron, aluminum, stainless steel and the like, and meanwhile, the cutting efficiency is also greatly increased.

The invention relates to a stainless steel cleaning passivator and application thereof. The stainless steel cleaning passivator is prepared from the following components of, in percentage by mass, based on the total weight of the stainless steel cleaning passivator, 10%-40% of organic acid, 5%-10% of organic acid salt, 1%-5% of surfactant, 1%-5% of chelating agent, 1%-3% of passivating oxidation auxiliary and the balance water; and the passivating oxidation auxiliary agent is alkali metal salt. Acid of the stainless steel cleaning passivator is organic acid, acid mist and waste acid are not generated in the acid pickling process, and the stainless steel cleaning passivator is suitable for rinsing stainless steel through a microelectrolysis oxidation method subsequently, environment-friendly and high in safety.

The invention relates to a kind of strong acidic phosphorous passive antirust agent for metal surface and the preparation method. The comprised raw material and their weigt proportion are as follows: phosphate 22- 66 uints, additive 8- 12 units, acidc ferric manganese phosphate 15- 45 uints, metal salt such as zinc nitrate, aluminum nitrate, nickel nitrate or nickel sulfate, calcium sulphate or calcium sulphate, silica dioxide, 12- 22 uints, OP or cleaning agent 2- 3 uits, clean water 14- 60 untis. The method comprises following steps: (1) feeding distilled water or soft water into autoclave; (2) adding ferric manganese phosphate into autoclave, stirring and adding zinc nitrate, nickel nitrate or nickel sulfate, silica dioxide and calcium chloride into it, reacting and getting semi- solid pasty; (3) dropping phosphate, adding additive, OP or cleaning agent, getting finished product when the liquid is clear. The invention is characterized in that it is smelless during immersion, spraying and coating below 120 Deg. C or at normal temperature, the binding force is the first grade, saves energy consumption by more than 80%, cost is reduced above 70%, no three waste discharge and non toxic, and the product is widely used.

The invention discloses a heat dissipation type photovoltaic terminal box which comprises a photovoltaic terminal box base and a photovoltaic terminal box upper cover which are covered mutually, wherein the photovoltaic terminal box base is internally provided with terminal assemblies, support pieces and diodes, the support pieces are connected with the terminal assemblies, the terminal assemblies which are connected with the support pieces are arranged in the photovoltaic terminal box base and are connected with the photovoltaic terminal box base through the support pieces, and the diodes are arranged among the terminal assemblies. According to the heat dissipation type photovoltaic terminal box, the terminal assemblies are not directly contacted with the photovoltaic terminal box base, so that the photovoltaic terminal box base can be prevented from being burned by the heat of the terminal assemblies; through holes are arranged at positions of the terminal assemblies, which are close to the installing surface so as to form convection; a U-shaped slot leading to an upper space is arranged at the front part of each terminal assembly so as to form convection; and therefore, the convection space is effectively enlarged, the heat dissipation is fast, the photovoltaic terminal box base cannot be burned, and the reliability is high. In addition, a pasting plate is arranged between each diode and the photovoltaic terminal box upper cover, so that the photovoltaic terminal box upper cover can be prevented from being burned by the heat of the diodes.

The invention belongs to the technical field of ground experiments for liquid propellant rocket engines and discloses an array self-impact type water-mist cooling device with the aim of resolving theproblem in the prior art of incomplete cooling of a cooling device. The device comprises a fire hydrant, a main liquid supply pipeline and a drainage drum. The drainage drum comprises a drum body andannular liquid collection cavities arranged at two ends of the drum body. One end of the main liquid supply pipeline communicates with the fire hydrant and the other end thereof communicates with oneof the annular liquid collection cavities. At least four injection pipes are arranged between the two annular liquid collection cavities and fixed on the inner wall of the drum body along the axial direction and extend from one end of the drum body to the other end thereof. Lines of main injection holes are arranged along the length directions of the injection pipes. The main injection holes are slant hole passages communicating with the injection pipes. The center lines of two adjacent slant hole passages intersect at one point. After the point of intersection departs from the inner wall of the drum body, two main injection holes firstly intersecting with each other become a pair. Center lines of the main injection holes intersect to form an included angle A. The angular bisector of the included angle A is vertical to pipe walls of the injection pipes.

A nitrogen laser cutting machining device for a saw blade base body comprises a laser cutting machine, and a laser beam passes a first copper reflector, a copper polarizer, a second copper reflector and a focus lens to act on a workpiece to be cut. One side of the workpiece to be cut is provided with a nitrogen nozzle which is connected with a nitrogen supplying device. The nitrogen laser cutting machining device has the following advantages that materials are melted completely through the laser energy during nitrogen cutting, the nitrogen blows molten slag in a cutting gap out, and inappropriate chemical reaction is avoided. The temperature of a melting point area is relatively low, and due to the fact that the nitrogen has the functions of cooling and protecting, the thermal deformation is small, the reaction is stable and even, and the cutting quality is high. The fracture surface is fine and smooth, the surface roughness is low, and an oxidation layer does not exist. The precision of the saw blade base body cut by the nitrogen laser is high, an installing hole does not deforme, the tooth part is not burned, the gear grinding allowance before a welding cutting head is small or gear grinding does not exist, and the quality of the base body is obviously improved. A cutter is not abraded in the process of machining, and the consistency of products is high during the batch processing.

The invention relates to the technical field of garment processing affiliated devices, in particular to a fabric ironing device for garment processing. The device has the advantages that the automation degree is high, labor force is saved, labor cost is reduced, the practicability is improved, the working efficiency is improved, production demands are met, potential safety hazards are reduced, andthe using reliability is improved. The device comprises a rack, a box body, a lifting and lowering platform, an air cylinder group, a left supporting plate, a right supporting plate, a driving motor,a sliding plate, two groups of limiting rods, a lead screw, a heating box, a piston rod, a rolling bead bearing and a heating bar, openings are formed in front and rear ends of the box body, the topof the heating box is provided with a water adding port and a gas discharging port, the water adding port and the gas discharging port are provided with a cover plate and a gas discharging valve respectively, two groups of left fixing rods, two groups of right fixing rods, a left spraying pipe, a right spraying pipe, a spraying hole and two groups of steam pipes are included, the two groups of steam pipes are communicated with a placing cavity, and electromagnetic valves are arranged on the two groups of the steam pipes.

The invention relates to an electroplating CBN grinding wheel for efficient and precise gear profile grinding. The electroplating CBN grinding wheel comprises a dish-shaped base body and a material grinding area at the edge of the dish-shaped base body, the mass of the material grinding area is 4%-15% of the total mass of the base body, the cross-section of a material grinding layer on the material grinding area is in an isosceles trapezoid shape, and the upper bottom and the two lateral edges are chamfered. A manufacturing method of the electroplating CBN grinding wheel includes the steps of firstly machining the base body of the grinding wheel, and then sequentially conducting negative and positive pole alternative electrochemistry oil removing, clamp and electrostatic adsorption film insulation assembling, negative and positive pole alternative electrolytic treatment, ballistic method preplating, grinding material assembling, thickening and grinding wheel electroplating on the base body of the grinding wheel. The using linear velocity of the electroplating CBN grinding wheel can achieve 250 m/s, and the grinding feeding amount achieves 4 m/min-10 m/min and is much higher than that of a common grinding wheel. The roughness Ra can achieve 0.4 micrometers, the surface quality requirement of a workpiece can be met, and gear efficient and precise gear profile grinding can be successfully achieved.

The invention relates to a composite chitosan dressing, and belongs to the technical field of hemostatic materials. The composite chitosan dressing is of a layered structure with a functional layer, wherein the functional layer is formed by compounding a chitosan recovery promoting layer and a chitosan hemostasis layer; the functional components of the functional layer contain no other components except for chitosan. The composite dressing plays the role by directly contacting with red blood cells and blood platelets without depending on in-vivo hemostasis mechanisms, moreover no irritability is caused, no heat is released, and the role can come into play under the condition of low body temperature. The composite chitosan dressing provided by the invention is applicable to gynaecology and obstetrics surgery, endoscope minimally invasive surgery, general surgery department surgery, open type wound of orthopaedics departments, plastic and aesthetic surgery, outpatient service and emergency treatment trauma, superficial skin ulcer and the like, and can be applicable to wound fixation, nursing and dressing change of various puncture, conduits and cathetering, and to nursing and dressing change of wound and wound surfaces of individual bruise, contusion, knife wound, small-area burn and the like. The composite chitosan dressing has the effects of hemostasis, heal prompting, analgesia, antibiosis and scar generation prevention.

The invention discloses a hot compress dressing and a preparation method thereof. The hot compress dressing is prepared from the following raw materials in parts by weight: 2-4 parts of vermiculite, 2-3 parts of activated carbon, 1-2 parts of sodium chloride, 45-48 parts of iron powder and 22-28 parts of water. Raw material components and proportion are specifically adjusted, so that heating rateof dressing is higher, heating time is longer and hot compress effect is better. A method for repeatedly adding sodium chloride solution into mixture is adopted for restraining the oxidation reactionrate in dressing, so that the heating time of dressing is longer, the hot compress effect is better, scald caused by high temperature can be avoided and use is safer.

The invention discloses a combined plating CBN grinding wheel for camshaft grinding and a manufacturing method thereof, belonging to the technical field of design and manufacture of abrasive grindingtools. The combined plating CBN grinding wheel for camshaft grinding comprises a camshaft and a combined plating CBN grinding wheel sleeving a main shaft for grinding different parts of the camshaft;one side, far away from the combined plating CBN grinding wheel, of the camshaft is abutted against a guide wheel; the combined plating CBN grinding wheel comprises a grinding wheel for grinding big end excircle and end face, a grinding wheel for grinding big end excircle journal and a plurality of grinding wheels for grinding excircle journal; and the molded surfaces of the grinding wheel for grinding big end excircle and end face and the grinding wheel for grinding big end excircle journal are matched. The invention is suitable for one-time grinding of a plurality of excircle journals of thecamshaft, can process a plurality of journals and big end of the camshaft at a time, improves the processing efficiency and ensures the surface roughness of the processed workpiece being smaller thanRz 10.

The invention discloses a Mongolian medicine Garixi and a preparation method thereof. The Mongolian medicine Garixi is prepared from 250g of dry dung of wild boar, 100g of round cardamom fruit, 50g of ox bile powder, 125g of fructus forsythiae, 50g of fruit cluster of long pepper, 200g of pomegranate fruit, 125g of semen momordicae, 75g of halite, 250g of fructus chebulae, 22.5g of cortex cinnamomi, 50g of radix inulae racemosae, 200g of rhizome of Chinese rhubarb, 100g of rhizoma kaempferiae, 250g of north gypsum rubrum (calcined) and 300g of tronae; the preparation method comprises the steps of weighing the ingredients according to weight proportion, crushing the ingredients into fine powder, screening and mixing, thus obtaining the Mongolian medicine Garixi. The Mongolian medicine Garixi and the preparation method thereof have the advantages that the curative effect on digestive system disease is remarkable, the Mongolian medicine Garixi and the preparation method thereof are economical and reasonable, a technology is simple, and side effects are avoided.

The invention discloses a steel rail grinding wheel allowing less grinding smoke and dust and a production method thereof. According to the production method of the steel rail grinding wheel allowing the less grinding smoke and dust, cyanite powders and wollastonite powders are used to replace the ferrous sulfide mineral powder filler of an original grinding wheel; the cyanite powders and the wollastonite powders are served as the filler to be uniformly combined together to form into the binding agent which guarantees the intensity of grinding wheel; sulfur-containing harmful gases are not generated during the grinding process and the intensity of the grinding wheel is greatly improved due to the fact that the cyanite powders and the wollastonite powders are served as the filler of the grinding wheel; the grinding sharpness of the grinding wheel is remarkably improved, steel rail surface burn caused by grinding is effectively avoided, and the operation of the production method is convenient due to the fact that a small amount of white corundum and fused zirconia alumina are mixed to be used.