72 results about "Surface layer" patented technology

The invention relates to a portable water quality sampler, which mainly comprises a water quality sampling probe, a telescopic pole, a sampling pipeline automatic winding and unwinding reel and a handheld terminal. The water quality sampling probe comprises a deep detection sensor and a sampling pump; the telescopic pole comprises a plurality of telescopic rods, a pulley block, a hook and a suspension seat; the sampling pipeline automatic winding and unwinding reel comprises a reeling disk, a winding motor, a counterweight, a cable, a sample conveying tube, a suspension balance frame and a reel bracket, and the handheld terminal comprises a LCD screen and keys. The whole system has the advantages of light quality, disassemble components and convenient carrying; the telescopic pole structure can be used to collect intermediate water samples in rivers, ditches and reservoir banks, the winding motor controls the reeling disk to adjust the putting-in depth of the probe for water quality sampling of different water depths, the deep detection sensor can be used for real-time detecting of the water depth of the probe so as to ensure the sampling pump can accurately acquire a surface layer, middle layer and bottom layer water sample, and the handheld terminal can be used for sampling horizon setting and sampling motor control.

The invention provides an asphalt modified thermoplastic polyolefin water-proof coiled material and a preparation method thereof; the coiled material is characterized by consisting of an upper surface layer, a main body layer and a reinforcing layer; the upper surface layer is made from white or colored thermoplastic polyolefin with excellent ultraviolet radiation resistance, the main body layer is made from black asphalt modified thermoplastic polyolefin, and the reinforcing layer consists of a middle reinforcing layer and a surface lining layer which are arranged as required. The asphalt modified thermoplastic polyolefin water-proof coiled material has the advantages of good processing property, excellent mechanical property, high tension strength, good dimensional stability, strong puncture resistance, good ultraviolet radiation resistance, small specific gravity, capacity of realizing convenient seam suturing welding of the main body and recoverable tailing and excessive materials, and the like.

The invention provides an aluminum and aluminum alloy matrix aluminum nitride reinforced gradient composite surface layer. In the surface layer, aluminum and an aluminum alloy matrix are melted by nitrogen arc with a simple process to ensure that Al and N elements in a melting bath to perform nitridation reaction, namely Al reacts with N to generate AlN, so as to obtain the 'AlN reinforced gradient composite surface layer'. Compared with a thin surface nitridated (AlN) layer prepared by reactive sputtering, chemical vapor deposition, ion injection, plasma nitridation and other methods, the surface layer has large thickness (0.13-0.3mm), has the microstructural characteristic of surface gradient composites, and has remarkably improved microhardness and abrasion resistance compared with the aluminum and the aluminum alloy matrix.

A laminated board comprising an intermediate layer and two surface layers formed thereon, in which board the intermediate layer comprises a central layer made of a nonwoven glass fiber fabric impregnated with a resin composition containing a thermosetting resin and an inorganic filler and upper and lower layers formed on the central layer, each being made of said resin composition containing a thermosetting resin and an inorganic filler, and the two surface layers formed on the intermediate layer are made of a thermosetting resin-impregnated fiber substrate; and a process for production of the laminated board.

The invention provides plant growth type porous concrete suitable for plant growth. The concrete comprises a porous concrete body with thickness and mixed fine loam covering the surface layer of the porous concrete body. The porous concrete body comprises components by volume density as follows: 150-325 kg/m<3> of cement, 1,495-1,550 kg/m<3> of ceramsite, 40-86 kg/m<3> of fly ash, 10-12 kg/m<3> oflimestone powder, 100-120 kg/m<3> of fine loam, 2-3 kg/m<3> of plant ash, 15-30 kg/m<3> of rice husk charcoal, 2.5-4 kg/m<3> of a water reducing agent, 10-20 kg/m<3> of EVA latex powder, 17-40 kg/m<3> of butadiene-styrene rubber powder, 13-23 kg/m<3> of a polyacrylate emulsion, 20-30 kg/m<3> of organic compost, 15-20 kg/m<3> of vermiculite, 2-3 kg/m<3> of seaweed meal, 0.5-0.7 kg/m<3> of tea seedmeal, 2-3 kg/m<3> of neem cakes, 0.7-1.2 kg/m<3> of polyacrylamide, 0.5-1 kg/m<3> of ferrous sulfate, 3-4 kg/m<3> of modified loofah fiber, 0.8-1 kg/m<3> of an organic silicon defoamer and 60-90 kg/m<3> of water.

The invention relates to an interlayer thermal-insulated plastic composite tube. Wherein, the producing method comprises: compressing the plastic to form two sheathes and synchronously compress at least one positioning support between them, form a tube with hollow interlayer. The inner wall of the inner tube is compounded with the tube in other material; the outer wall of outer tube can be compounded with the tube with other material; the space between the inner and outer tubes can be compounded with other thermal-insulated material; the surface of outer layer is compounded with reflective film, which is compounded with thermal-insulated tube, whose outer surface is plated with a reflective film with a surface layer which can be plated with reflective film. The invention has simple structure and easy operation, with better thermal-insulated efficiency.

Provided is a microporous polyolefin membrane which has excellent oxidation resistance and electrolyte injection performance and further has excellent permeability and strength balance. The multilayer, microporous polyolefin membrane has a first microporous layer containing polypropylene. The electrolyte injection performance is 20 seconds or less, at least one surface layer is the first microporous layer, and the PP distribution in the first microporous layer is uniform in the in-plane direction.

The invention provides a ceramic floor tile with diatom mud and a method for manufacturing the ceramic floor tile. The ceramic floor tile comprises a base layer, a surface layer and an adhesion layer. The adhesion layer is arranged between the base layer and the surface layer, and the base layer is made of the diatom mud, feldspar, kaolin, quartz, clay, porcelain clay, moire stone, marble, broken iron, polystyrene and polyacrylate; the surface layer is made of the diatom mud, Kunshan stone, carborundum disc stone, colorants, pebble, glass cloth, plastic particles, polyurethane, ethylene-ethylic acid ethylene copolymers, silicon dioxide and aluminum oxide. The ceramic floor tile and the method have the advantages that the ceramic floor tile is made of nontoxic and pollution-free raw materials, and the diatom mud which is a main material is easy to obtain, is natural and pollution-free and has diversified sterilization, disinfection and waterproof merits; the ceramic floor tile is made of the easily available materials, processing and manufacturing processes are simple, and the ceramic floor tile manufactured by the aid of the method is high in smoothness and quality.

Provided is a sintered bearing (1), including 3 to 12% by mass of aluminum, 0.05 to 0.5% by mass of phosphorus, and the balance including copper as a main component, and inevitable impurities, the sintered bearing (1) having a structure in which an aluminum-copper alloy is sintered with a sintering aid added to raw material powder, a pore (db, do) in a surface layer portion of the sintered bearing (1) being formed smaller than an internal pore (di).

The invention provides an infrared stealth textile coating fabric which comprises a printing layer, a surface layer, a thermal-insulating layer, a bonding layer and a base cloth layer which are laminated sequentially, wherein the printing layer comprises one-component polyurethane A, a solvent A, a dilution A, infrared reflection color paste, white paste and a defoaming agent A; the surface layer comprises one-component polyurethane B, a solvent B, a dilution B, aluminum oxide or iron oxide, a defoaming agent B and a flatting agent B; the thermal-insulating layer comprises two-component polyurethane C, a solvent C, a dilution C, aluminum powder, a foaming agent, a cross-linking agent C and a cross-linking accelerator C; the base cloth layer is nylon or dacron. According to the fabric provided by the invention, defects of the prior art are overcome, the fabric has the softness of textiles, can prevent rain and corrosion, can be used both on sunny days and slushy days, and has stealth and warmth retention effects.

A method of forming a corundum surface layer on a metal part has the steps of providing an electrolytic bath, immersing a metal part in the electrolytic bath as an anode, providing a cathode, and passing a wave electric current with a gradual increase of voltage between the cathode and the anode to 1000-1800 V.

The invention provides a medical sterilization packaging bag comprising a surface layer and a bottom layer which are mutually connected to form a closed cavity; the surface layer is made of spun-bonded/melt-blown/melt-blown/spun-bonded composite non-woven fabric; and the bottom layer is made of a polypropylene and polyester composite film. According to the medical sterilization packaging bag, all inherent technical parameters meet the requirements of the national industrial standard YY/T0698, can be applied by various sterilization modes, the packaging bacterium resistance rate is improved, the sterilization shelf life is no less than 6 months, the use safety is ensured, and meanwhile the cost is reduced.

To provide a hydrogen storage alloy for an alkaline storage battery that improves output power by pulverization of the alloy in the initial stage of partial charge and discharge cycles and that maintains its surface condition to improve the amount of lifetime work (Wh), and an alkaline storage battery and battery system. A hydrogen storage alloy for an alkaline storage battery includes a composition expressed by La_xRe_yMg_1-x-yNi_n-m-vAl_mT_v (Re; rare earth element(s) including Y; T: Co, Mn, Zn; 0.17≦x≦0.64, 3.5≦n≦3.8, 0.06≦m≦0.22, v≧0), and a main phase of an A₅B₁₉ type crystal structure. A ratio of X/Y of the concentration ratio X of Al to Ni in a surface layer and the concentration ratio Y of Al to Ni in a bulk layer is 0.36≦X/Y≦0.85. An alkaline storage battery includes the hydrogen storage alloy in its negative electrode. An alkaline storage battery system performs partial charge and discharge control.

The invention relates to a novel separation membrane with high performance and a preparation method thereof. The membrane is prepared from high-flux directionally-arranged carbon nanotubes serving as a substrate, and a ZIF (Zeolitic Imidazolate Framework) type metal-organic framework material with high selectivity serving as a separation layer. The preparation method comprises the following steps: (1) preparing a directionally-arranged carbon nanotube substrate on a microfiltration membrane through a vacuum filtration method; (2) growing a ZIF type metal-organic framework material surface layer on the carbon nanotube substrate through an interface method. In conjunction with high transmission properties of inner channels and tube gaps of carbon nanotube material tubes and the three-dimensional micro-pore structure of the ZIF type metal-organic framework material, the prepared novel metal-organic framework material separation membrane based on the carbon nanotube substrate has high permeability and high selectivity in a membrane separation process. The novel separation membrane shows superior separating performance in a nano-filtration process, and a basis is laid for the design and preparation of a large-flow efficient separation membrane.

The invention discloses a midsole of a high-elasticity shoe with an elastic support sheet, which is arranged in the shoe and used for supporting the foot sole of a wearer. The midsole comprises a soft surface layer and the elastic support sheet which is of an elastic sheet-shaped structure; the soft surface layer is attached to the elastic support sheet; the length of the elastic support sheet at least extends to the foot palm part of the soft surface layer from the foot heel part of the soft surface layer; and the width of the elastic support sheet is matched with the width of the foot sole. Therefore, the midsole of the high-elasticity shoe with the elastic support sheet disclosed by the invention can automatically adjust the part contacted with the foot sole of the wearer according to the weight of the wearer, so as to increase the contact area therebetween and then reduce the pressure suffered by the foot sole in a unit area; and the midsole of the high-elasticity shoe with the elastic support sheet disclosed by the invention is lighter and has a flexible buffering effect, thus having the advantages of being light in weight, simple in structure and better in wearing comfort. Additionally, the invention further discloses a high-heeled shoe with the midsole of the high-elasticity shoe.

It is an object of the present invention to provide a silicon carbide semiconductor device that reduces a channel resistance and increases reliability of a gate insulating film. The present invention includes a trench partially formed in a surface layer of an epitaxial layer, a well layer formed along side surfaces and a bottom surface of the trench, a source region formed in a surface layer of the well layer on the bottom surface of the trench, a gate insulating film, and a gate electrode. The gate insulating film is formed along the side surfaces of the trench and has one end formed so as to reach the source region. The gate electrode is formed along the side surfaces of the trench and formed on the gate insulating film.

The invention discloses a method for making a coated filter cloth through a wet process. A technical scheme adopted in the invention is characterized in that the method comprises the following steps: calendering the coated surface of a filter cloth, coating or dip-coating the calendered surface of the filter cloth with a coating agent of an organic polymer material having the advantages of high porosity, smooth surface, good elasticity and good wear resistance through a coating or dipping device, immersing the coating agent coated filter cloth in a coagulation bath, controlling and adjusting the temperature of the coagulation bath and the detention time in order to realize required porosity and film layer thickness, washing with water, and drying. The obtained coated filter cloth changes deep filtration to surface layer filtration, so a filtered material does not aggregate in the apertures between yarns of the filter cloth, the obstruction of the filtered material in the apertures of the filter cloth is avoided, the possibility of the obstruction of the filter cloth by the filtered material is greatly reduced, the filtering efficiency is improved, the energy consumption of a filtering system is reduced, the filter cloth obstruction is reduced, the service life of the filter cloth is prolonged, and the production cost is reduced.

The invention provides an automobile trim material combined with a non-woven fabric and a woven fabric The automobile trim material is prepared by virtue of the following steps: 1, cutting ramie into 70mm fibers, putting the fibers into a stainless steel vessel, adding a sodium bicarbonate solution and stirring for 60 minutes; 2, cleaning jute fibers and drying the jute fibers; 3, adding warm water at a temperature of 30 DEG C, performing constant-temperature bath for 60 minutes, adding 1% constant temperature bath and 0.1% ceric ammonium nitrate, cleaning, and then drying; 4, putting the jute fibers on fur machine equipment, and performing shredding mixing on the jute fibers and polypropylene fibers; 5, carding the fibers into a net shape by use of a carding machine; 6, paving the fibers to form a multilayer net body with weight per square meter of 1500g; 7, paving polypropylene fabrics on both sides as surface layers, and performing reciprocating reinforcement by use of a needling machine; and 8, pressing to prepare an automobile trim material sectional material by use of die pressing equipment. The automobile trim material produced by the method is low in price, is capable of adsorbing sound and insulating heat, is high in rigidity, durable in use, simple in technological process and free from environmental pollution.

The present invention provides a fine grain surface layer steel part having a high proof strength ratio equal to or higher than that of conventional quenched and tempered materials, that is, a fine grain surface layer steel part containing, by mass %, C: 0.45% to 0.70%, Nb: 0.01% to 0.60%, Si: 0.10% to 1.50%, Mn: 0.40% to 2.0%, P: 0.10% or less, S: 0.001% to 0.15%, and N: 0.003% to 0.025% and having a balance of Fe and unavoidable impurities, where the surface layer and inside at all or part of the part have structures of different average particle sizes of ferrite crystal grains surrounded by high angle grain boundaries of a misorientation angle of 15 degrees or more and a method of production of that part comprising warm forging locations where strength is required to a predetermined shape at 1000° C. to 800° C. during which working so as to give an equivalent strain of 1.5 or more.

The invention discloses a quartz rod cutting process. The quartz rod cutting process includes the following steps that firstly, pretreatment is conducted, specifically, a quartz rod is soaked in hydrofluoric acid with the concentration being 5% and then taken out to be rinsed through pure water; secondly, a swelling binder is coated on a surface layer of the quartz rod; thirdly, the quartz rod isplaced in a wax sticking groove, an adhesion agent is poured into the wax sticking groove, and the adhesion agent wraps the quartz rod; fourthly, the quartz rod wrapped with the adhesion agent is subjected to still standing, solidification and forming at the room temperature; fifthly, the solidified and formed adhesion agent and quartz rod are taken out, and the adhesion agent and the quartz rod are integrally cut through a cutting machine; and sixthly, the cut adhesion agent and quartz rod are placed in a boiling pot to be subjected to boiling andadhesion agent removal treatment, and the cutquartz rod is obtained. According to the quartz rod cutting process, the adhesion agent wraps the quartz rod, the quartz rod is integrally fixed through the solidified and formed adhesion agent, the adhesion agent and the quartz rod are integrally cut through the cutting machine, and thus the quartz rod cannot deform after being cut.

The invention relates to an increasing insole with massage convex points. The increasing insole with the massage convex points comprises an insole body (1). The insole body (1) is made of silica gel. The increasing insole with the massage convex points is characterized in that the insole body (1) is provided with a plurality of vent holes (2), and the two side faces of each vent hole (2) are communicated; the upper surface of the insole body (1) is provided with the massage convex points (3); the insole body (1) comprises a pure cotton surface layer, an activated carbon middle layer and a PU bottom layer. Since the insole body is provided with the vent holes and the massage convex points, the foot of a user can feel comfortable, the breathable effect is good, no odor will be generated after the insole is used for a long time, and the increasing insole is not prone to slipping.

The invention relates to the field of chip attack resistance, is mainly applied to an occasion of chip attack resistance, and discloses a safe packaging structure used for an anti-attack chip, and a packaging integrity detection method, for the purposes of monitoring integrity of a metal network in real time, monitoring packaging integrity and guaranteeing information security of an integrated circuit chip. The technical scheme employed by the invention is as follows: the safe packaging structure used for the anti-attack chip is composed of a base Z1 and a cover plate Z2, wherein the base Z1 is prepared by use of an LTCC (low temperature co-fired ceramic) technology, has a convex cavity oriented downwards and thus has a three-layer surface, i.e., an upper-surface layer Z5, a metal pressure PAD layer Z4 and a chip layer Z3; and the cover plate Z2 is prepared by use of the LTCC technology and is a thin rectangular plate with a metal lead wire embedded therein, the upper surface of the cover plate does not comprise any metal lead wires, and a metal lead wire used for forming a closed metal network is embedded into the lower surface of the cover plate.

The invention relates to a preparation method of pearlescent anti-crease waterproof moisture-permeable polyurethane synthetic leather. The preparation method comprises the steps: weighing raw materials of a surface layer, mixing activated carbon, nitrocellulose, a dried color material, a pearl powder and colored plastic particles, then grinding, adding a proper amount of an acetic acid solution and polyurethane, adjusting the pH to be neutral, carrying out freeze drying, then grinding, adding the remaining raw materials, and stirring, to obtain a surface layer slurry; evenly coating release paper with the surface layer slurry, and drying to form a surface layer; weighing raw materials of a middle layer, mixing expanded graphite, quartz sand, magnesium oxide and aluminum hydroxide, then calcining the mixture, adding a stripping agent BYK-325, then treating for 1-2 h, cooling, then adding boric acid and wood powder, grinding, adding the remaining raw materials, and stirring to obtain a foaming layer slurry; mechanically foaming the prepared foaming layer slurry, then evenly coating the surface layer with the foamed foaming layer slurry, and drying; coating the foaming layer with a water-based polyurethane adhesive slurry, bonding with a base cloth layer, and then drying; and peeling off the release paper, trimming, rolling, and thus obtaining the synthetic leather finished product.