40results about How to "High filling density" patented technology

The present invention provides a conductive paste comprising flake conductive fillers having a 99% cumulative particle size of 25 [mu]m or less and a binder resin as essential components. The flake conductive fillers are metal particles having a silver-copper alloy surface layer. The conductive paste according to the present invention is fused with a part of a copper foil circuit to which the conductive paste is to be connected during connection by heating and pressurization, and has high electrical conductivity and high fill ration in a via hole. Thus, the conductive paste according to the present invention provides a multilayer printed wiring board that has high reliability of connection and excellent interlayer connection.

The invention provides a spare pressure type heptafluoropropane fire extinguishing system. The spare pressure type heptafluoropropane fire extinguishing system comprises a power gas cylinder set, a driving gas cylinder set, a heptafluoropropane storage cylinder, a fire extinguishing agent container valve, a pressure reducing device, a power gas container valve, a driving gas container valve, a first starter, a second starter and an electromagnetic starter. When a fire breaks out, the electromagnetic starter and the gas driving cylinder set act, released gas enters the first starter and the third starter respectively, the power gas container valve and a selection valve are opened, and gas released from the power gas cylinder set constantly enters the heptafluoropropane storage cylinder after being subjected to pressure reduction by virtue of the pressure reducing device and delayed; and when pressure of a fire extinguishing agent in the heptafluoropropane storage cylinder reaches a certain pressure, the fire extinguishing agent enters the second starter by virtue of a connecting pipe, the second starter acts to open the fire extinguishing agent container valve, and the fire extinguishing agent in the heptafluoropropane storage cylinder extinguishes a fire in a specified protection zone by virtue of a pipe network. By applying the spare pressure type heptafluoropropane fire extinguishing system provided by the invention, safety of the fire extinguishing system can be guaranteed, and constant pressure stable output of heptafluoropropane also can be guaranteed.

The invention relates to an open hole well external inclusion expansion packing sand control method. An external inclusion high-expansion packing sand control screen is tripped into a voided space, afree extension external inclusion continuously stretches outwards under the action of high pushing pressure difference of sand-carrying fluid solid particles until the outer wall of the free extensionexternal inclusion is fitted with an open hole well wall, and packing sand control is realized. According to the sand control method, a high-thickness, high-filling-compactness and high-stability packing strip is formed in immediate vicinity of wellbore of a target sand control layer, and a sand barrier is high in overall sand control strength and long in sand control validity period. The overallsand control strength of the sand barrier is improved, the water content of an oil-gas well can be effectively reduced, and the sand control validity period is prolonged.

Provided are a hollow-fiber membrane unit in which the membranes are prevented from decreasing in permeation rate and the membrane area per unit volume has been rendered suitable and which can hence treat water in an increased rate and a hollow-fiber membrane module which is for use in such hollow-fiber membrane unit. The hollow-fiber membrane module comprises either a hollow-fiber membrane sheet composed of hollow-fiber membranes disposed in a sheet arrangement or a stack of such sheets and a box-shaped water collection member which holds the hollow-fiber membrane sheet or stack, wherein one surface of the water collection member has an opening that is filled with a fixing resin (potting resin) and is for fixing the hollow-fiber membrane sheet stack. The water collection member has a thickness of 20 mm or smaller along the out-of-plane direction of the hollow-fiber membrane sheet, and the proportion of the total area of the cross-sections of the hollow-fiber membranes in the one surface having the opening formed therein is at least 45%.

The invention relates to an electrical cable (10), in particular for the energy supply of a vehicle (50), comprising a sheath (16), within which at least two insulated electrical conductors (12) are provided, which are connected to at least one plug connector (18) at at least one first end of the cable (10). According to the invention, the sheath (16) and/or the conductors (12) and/or at least one shaping element (20) preferably provided in the cable (10) is designed in such a way that the cable (10) is held in a resting position by means of a restoring force, in which resting position the cable (10) has the shape of a spiral and is oriented along a flat or curved resting surface.

The invention discloses a method for recycling oxytetracycline hydrochloride from oxytetracycline hydrochloride crystallization mother liquid. The method comprises the following steps: (1) adjusting the pH value of oxytetracycline hydrochloride mother liquid, and filtering to remove insoluble impurities; (2) separating treated filtrate by virtue of an ultrafiltration system so as to obtain a concentrated solution rich in oxytetracycline hydrochloride and an alcohol solution containing a small amount of calcium salt, and recycling methanol from the alcohol solution; (3) carrying out alkalization crystallization on the concentrated solution obtained through ultrafiltration, adding an alkalization reagent during alkalization so as to adjust the pH value, and recycling oxytetracycline, wherein the recycling rate of oxytetracycline reaches 93%-96%; and (4) adding recycled oxytetracycline into absolute methanol which is 5 times of volume dose of oxytetracycline, adding a small amount of calcium chloride to aid dissolving, filtering, adding hydrochloric acid methanol, and crystallizing, so as to obtain oxytetracycline hydrochloride. According to the method, inorganic salt, namely calcium salt, is filtered and separated by virtue of a membrane, the concentrated solution is subjected to alkalization crystallization to generate oxytetracycline, oxytetracycline is refined by virtue of hydrochloric acid ethanol so as to generate oxytetracycline hydrochloride, and the content of obtained oxytetracycline hydrochloride reaches 96%.

The invention relates to a spheral anode material for producing a lithium battery and a preparation method thereof. Existing synthesis of spheral lithium manganese (i.e. Ni-Mn) oxide requires numerous control conditions, long reaction time, complex apparatuses and high production cost. In the preparation method, NaHCO3 is utilized as a coprecipitator to prepare spheral Ni-Mn carbonate, and the process is simple and strongly controllable. A spheral intermediate product is burnt to obtain the spheral Ni-Mn oxide. The spheral intermediate product or the spheral Ni-Mn-O is mixed with Li salt, the mixture is burnt, and then the high-performance spheral Li-Ni-Mn-O anode material for the lithium battery can be prepared. The spheral anode material has high stocking density so that the packing density of the anode of the lithium battery can be improved and the aim of improving the discharge capacity of the lithium battery and assembling the high-performance lithium battery can be achieved. The preparation method has a simple and strongly controllable reaction process, can reduce the number of procedures, the energy consumption and the cost, has low cost and wide application range and is favorable for generalization.

The issue of the invention is 'a method for producing a hybrid magnet and the hybrid magnet produced by the method'. The invention relates to a method for producing a hybrid magnet (20) and the hybrid magnet (20) produced by the method. The hybrid magnet comprises nucleons (15, 15') made of at least two different magnetic materials (12, 13') and an amorphous matrix (21) made of an antimagnetic or paramagnetic material (22). The nucleons (15, 15') are embedded into the matrix (21).

The invention discloses a method for treating phenol-containing wastewater with a polyelectrolyte-surfactant. The method comprises the following steps: mixing sodium polymethylacrylate, cetyltrimethylammonium bromide and phenol-containing wastewater, stirring, standing, and performing ultrafiltration to complete treatment of phenol in the wastewater. The method for treating phenol-containing wastewater with the polyelectrolyte-surfactant has the advantages of high removal rate, low energy consumption, no phase change, no secondary pollution, easy achievement of pollutant recycling and automatic operation and the like, and also has the advantages of a simple technology, convenience in operation, low cost and the like; by the method, the phenol can be effectively removed from the wastewater;and the method has a good application value and a good application prospect.

The invention relates to a textile machine, particularly a false twist crimping machine equipped with a thread transport system (14) for the threads (8) that continuously accrue in the event of a thread breakage or a bobbin change. The invention provides that the negative pressure in the thread transport system (14) is generated by a jet apparatus (20) supplied with a gaseous working substance. The accumulating thread waste is conveyed by the jet apparatus into a collecting receptacle (21), which also serves as a thread store while being detachably attached as an easily exchangeable thread waste bag that, for improving recycling, is made of the same polymer as the thread remnants collected therein.

The invention relates to a switchgear cabinet or rack for accommodating electrical energy stores, in particular batteries, wherein the switchgear cabinet (1) or the rack comprises a plurality of superimposed energy storage inserts (2), characterized in that the energy storage inserts (2) are formed by a plurality of grooves (3), wherein the longitudinal direction and the direction of insertion (x) thereof extend in a depth direction of the switchgear cabinet (1) or rack, wherein a respective pair of the grooves (3) are directed toward one another on opposite sides (4) of the switchgear cabinet (1) or rack on the same vertical height and with their open longitudinal side. The invention further relates to a corresponding switchgear cabinet assembly or rack assembly.

The invention relates to a stator (1) for an electric machine, comprising a laminated core (2), having a plurality of grooves (4), uniformly distributed in the circumferential direction (10) about a longitudinal axis (3) and extending continuously in a longitudinal direction (11) of the laminated core (2), each for receiving at least two electrical conductors (8) having a substantially rectangularcross-section, said electrical conductors (8) being insulated from each other and in respect of the laminated core (2) by means of at least one insulation layer (9), covering in the radial direction(12) and circumferential direction (10), and at least over a stator height (1) of the stator (1) in the longitudinal direction (11). For defect-free insulation, the at least one insulation layer (9) comprises a thermoplastic high-performance polymer, which is continuously closed in the circumferential direction (10) and in the radial direction (12) and moulded directly on the electrical conductor(8), preferably by means of an extrusion process, wherein the insulation layer (9) has a total circumferential thickness (13), at least in the circumferential direction (10), which is at least 1.5 times to 3 times, preferably 1.8 times to 2.2 times a total radial layer thickness (14) in the radial direction (12) of the respective electrical conductor (8).