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148results about How to "Eliminate quality issues" patented technology

Construction technology for allowing tunnel to pass through ultra-large karst cave

The invention relates to a construction technology for allowing a tunnel to pass through a karst cave, and in particular relates to a construction technology for allowing a tunnel to pass through an ultra-large karst cave. The technology at least comprises the following steps of: 1) performing simple bridge treatment on the underground part of the karst cave; 2) performing primary support, namelyarranging a support wall at one side of the karst cave; 3) forming parallel guide holes; 4) performing bottom treatment; 5) treating the tunnel hole body at the inlet section of the karst cave; 6) filling C25 early strength sprayed concrete within 1 meter at the top of the support wall, and arranging phi 50 small grouting conduits with the lengths of 3 meters in the concrete, wherein the distancebetween the small conduits is 1.5 meters; 7) supporting the arch part and the side wall surrounding rock of the karst cave by adopting phi 22 cartridge anchor rods arranged in a plum blossom shape and at a distance of 150cm*150cm, hanging phi6 reinforcing meshes at a distance of 15cm*15cm, and spraying C25 early strength concrete with the thickness of 15 centimeters; 8) treating the accumulation of the karst cave; and 9) monitoring and measuring when the tunnel passes through the ultra-large karst cave. The construction technology for allowing the tunnel to pass through the ultra-large karst cave is simple in process, convenient for construction, low in cost, scientific, effective, energy-saving and environmentally-friendly.
Owner:CCCC SHEC DONGMENG ENG CO LTD

Veneering production process for artificial board

The invention relates to a veneering production process for an artificial board. The process comprises the following steps of: (1) treating an artificial board base material and a figured veneer at constant temperature and humidity to adjust water content, so that the water content of the artificial board base material is 6 to 10 percent, the water content of the figured veneer is 8 to 12 percent, and water is uniformly distributed; (2) completely removing a compact hardened layer from the surface of the artificial board base material to avoid warpage deformation or cracking caused by stress unbalance or environmental change in the veneering process of the figured veneer; (3) attaching the figured veneer to the surface, from which the compact hardened layer is removed, of the artificial board base material to form a semi-finished veneered decoration plate; and (4) and curing the semi-finished veneered decoration plate. By the process, the defects of dry shrinkage, bending, deformation, panel cracking and the like after the figured veneer is attached to the artificial board base material are overcome, and the quality of the veneered decoration plate is obviously improved; and compared with the traditional veneering process, the process has the advantage that quality loss is reduced by over 60 percent.
Owner:SHANTOU YIHUA FURNITURE +1

Special mechanism for automatically conveying high-temperature saw bit

The invention discloses a special mechanism for automatically conveying a high-temperature saw bit. The mechanism comprises a base, an upright post and the like, wherein the upright post is fixed on the base, a rotating crossarm is connected with the upright post and can rotate around the upright post, and a slider fixed on a conveyer belt is driven to move on a sliding guide rail by a sliding driving motor which is fixed on the rotating corssarm through pulley transmission; actions of a movable paw of clamping and loosening a high-temperature sheet are realized through the rotation of a clamping driving motor fixed on the slider; and the rotating driving motor is fixed on the base, an output shaft is provided with a pinion which is meshed with a circular arc rack fixed on the rotating crossarm to drive the rotating crossarm to rotate around the upright post, and a positioning pin on the rotating corssarm slides on the rotating guide rail during rotating so as to realize the function of rotatably conveying the high-temperature saw bit. The mechanism can realize the high-speed high-efficiency conveying of the high-temperature saw bit, eliminates adverse influence such as the pressing precision reduction and quality reduction of the saw bit caused by overlarge temperature drop in the conveying process, and has the advantages of high efficiency, high speed, accuracy and reliability.
Owner:NANJING UNIV OF SCI & TECH

Pipeline tapping cutting and butt weld welding working station

The invention relates to the technical field of pipeline machining devices, in particular to a pipeline tapping cutting and butt weld welding working station. The pipeline tapping cutting and butt weld welding working station comprises a mobile manipulator, a displacement sensor, a controller and a displayer. The mobile manipulator comprises a manipulator head, a transverse arm, a stand column, a base, a first drive mechanism, a second drive mechanism and a third drive mechanism; the displacement sensor is mounted on the manipulator head, the displacement sensor is connected with the controller, and the controller is connected with the first drive mechanism, the second drive mechanism, the third drive mechanism and the displayer; the manipulator head is carried with the displacement sensor, and therefore the different opposite positions of the manipulator head and a pipeline are transformed; data are introduced into the controller, various parameters of the pipeline are obtained, and the position of the pipeline is manually or automatically adjusted; and in the cutting and welding process, real-time measuring is achieved, the opposite position of the manipulator head and the pipeline is corrected, the influence of disturbing and jumping of the long pipeline in the rotating process on cutting and welding quality and the forming effect is eliminated, and the beneficial effects of being safe, labor-saving, easy, convenient and efficient are achieved.
Owner:新疆威奥科技股份有限公司

Storage battery automatic slot entering device

A storage battery automatic slot entering device comprises a base, a slot entering lifting mechanism, a battery shell lifting mechanism, a pole group clamp support frame, a machine head and pole group press-mounting modules, wherein a row of columns are fixed on two sides of the base respectively, the machine head is fixed at the upper parts of the columns, and the pole group press-mounting modules are fixed at the lower part of the machine head; a lifting plate is arranged on the slot entering lifting mechanism and can move up and down relative to the base, a battery shell supporting plate is arranged on the battery shell lifting mechanism and located on the lifting plate and can move up and down relative to the lifting plate, the pole group clamp support frame is located on the battery shell supporting plate, and the pole group press-mounting modules correspond to the pole group clamp support frame in the vertical direction. With the adoption of the storage battery automatic slot entering device, a storage battery can enter a slot automatically, heavy physical labor of an operator is relieved, the production efficiency is improved, and the potential safety hazard and the potential quality hazard are eliminated. Different specifications of storage batteries can enter the slot, the device is matched equipment for storage battery assembly lines, and the requirement of large-scale production of the storage batteries can be met.
Owner:FENGFAN

Intermediate-temperature-sensitized emulsion explosive and preparation method thereof

The invention discloses an intermediate-temperature-sensitized emulsion explosive and a preparation method thereof. The emulsion explosive is obtained through sensitization of emulsion matrix and a sensitizer, wherein the weight ratio of the emulsion matrix to the sensitizer is 98-99.6:0.4-2; the emulsion matrix comprises 5-10 percentage by weight of oil phase and 90-95 percentage by weight of aqueous phase; the oil phase comprises 28-40 percentage by weight of an emulsifying agent and 60-72 percentage by weight of an oil phase material; the oil phase material is a compound formed by compounding complex wax with any two of liquid paraffin, mineral wax or microcrystalline wax. The preparation method comprises the following steps: the oil phase and the aqueous phase are pressurized through a screw pump and are then mixed in a static mixer to be subjected to pre-emulsification and fine emulsification, so as to obtain emulsion matrix, the emulsion matrix is cooled to 65-75 DEG C and is then pressurized again through the screw pump to be mixed with the sensitizer in the static mixer, and then the mixture is sensitized at a temperature of 65-75 DEG C, so as to obtain the intermediate-temperature-sensitized emulsion explosive. According to the intermediate-temperature-sensitized emulsion explosive and the preparation method thereof, the emulsion matrix has low viscosity at the temperature of 65-75 DEG C, the technical problem that during high-temperature sensitization, opposite phase of the oil phase material of the emulsion explosive is easily caused is solved, and the technical defect that sensitization bubbles are easily damaged when loading low-temperature-sensitized high-viscosity and high-hardness emulsion matrix is overcome.
Owner:CHANGSHA YICHUAN ELECTROMECHANICAL EQUIP TECH

Machining method of shielding motor rotor

ActiveCN101309034AEliminate the bulge of the shielding sleeveNo longer deformedManufacturing stator/rotor bodiesThermal expansionEngineering
Disclosed is a processing method for shielding a motor rotator. Two shielding plates are covered on the shaft when a rotator is processed by rough machining; then the connection part between the shaft and the shielding plate is processed by argon arc welding; then a stainless steel thread is welded by fusion welding on the base to achieve a sealing function; then the rotator is processed by finish machining and a rotator shield cover is installed; and then the rotator is put into an oven and kept at the temperature of 250 DEG C for 4-5 hours to vaporize the moisture out of the rotator inner cavity from the leakage detecting hole by high temperature; after that, the rotator is taken out and the leakage detecting hole is immediately sealed by argon arc welding; and then the rotator can be moved to following processes. Compared with prior art, firstly, the method solves the problem of leaving moisture in the rotator and effectively avoids the bulge phenomena of the rotator shield cover; secondly, the rotator is sealed after being in 250 DEG C for long time, the shield cover can shrink and closely cling to the outer diameter of the rotator iron core after cooling, making the place thereof gapless; moreover, the shield cover will not distort in the future when the pump works because the shield cover performs a certain of thermal expansion and cooling contraction at the situation above the working status.
Owner:HEFEI XINHU CANNED MOTOR PUMP

Automatic welding device of box-type steel member

The invention discloses an automatic welding device of a box-type steel member. The automatic welding device of the box-type steel member is characterized in that the upper end of a support is connected with the lower end of a cantilever seat in a rotating mode; a movable seat arranged in the middle of the support is longitudinally connected with a welding gun; an outer side support of the welding gun is transversely connected with a walking wheel; an inner side support of the welding gun is transversely connected with a soldering flux stop plate; the support below the soldering flux stop plate is longitudinally connected with a guide wheel; a rotating center of the walking wheel is perpendicular to the center of the welding gun; a rotating center of the guide wheel is parallel to the center of the welding gun. The walking wheel and the guide wheel on the support are driven to correspondingly move on the top face and side faces of the box-type steel member by controlling over the welding device, and meanwhile welding bars in a middle hole of the welding gun are driven to automatically perform even and dense welding along a welding seam in the length direction of the box-type steel member. Soldering flux fluid generated by welding can be blocked stopped by the soldering flux stop plate and be prevented from flowing outwards. The automatic welding device of the box-type steel member obviously improves the working efficiency and machining quality of welding and effectively lowers production and machining costs.
Owner:龙口市正通钢构建设有限公司

Reversed deformation treatment process before welding of H-shaped steel structures

The invention discloses a reversed deformation treatment process before the welding of H-shaped steel structures. An H-shaped steel structure after being assembled by using an upper wing plate, a lower wing plate and a web plate is welded into an H shape. The reversed deformation treatment process comprises the following steps: carrying out feeding and local heat treatment on plates; 2, assembling the plates into an H-shaped steel structure; 3, carrying out submerged-arc welding on the H-shaped steel structure. According to the reversed deformation treatment process before the welding of H-shaped steel structures disclosed by the invention, plates are subjected to preheating treatment in advance, so that the quality problem caused by local deformation in the process of welding is eliminated, and operations of collecting and shaping are not required to be performed after welding, thereby greatly improving the operating efficiency and meeting the practical requirements. Compared with the existing flame heating method, the machining cost of the reversed deformation treatment process is reduced by about 90%, therefore, the reversed deformation treatment process is suitable for wide popularization and application, and has remarkable economic benefits.
Owner:TONGLING FERROUS CONSTR & INSTALLATION STEEL STRUCTURE

Hot-dip galvanizing method for high-strength steel

The invention discloses a hot-dip galvanizing method for high-strength steel, and belongs to the technical field of steel hot-dip galvanizing processing. According to the hot-dip galvanizing method, the following steps are carried out to process the formed high-strength steel, the steps are of high-frequency heating, acid pickling, washing, plating assistant treatment, drying, hot-dip galvanizing,placing the high-strength steel subjected to hot-dip galvanizing at room temperature for air cooling, and arranging and collecting after air cooling. The hot-dip galvanizing method utilizes the skineffect of induced current to heat the surface layer of the formed high-strength steel in a high-frequency heating furnace, so that alloying elements contained on the surface of the high-strength steelare changed, the phase and the structure which are unfavorable to the quality of a zinc coating are eliminated, the property of the whole steel is not influenced, the hot-dip galvanized steel which is excellent in quality, proper in thickness and bright in surface can be manufactured, and the proportion of the brittle phase of the zinc coating is effectively reduced; and meanwhile, the mechanicalproperty of the high-strength steel is obviously improved, and the corrosion resistance property is good.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Novel solid fermentation method for producing Luzhou-flavor liquor

The invention discloses a novel solid fermentation method for producing a Luzhou-flavor liquor, and belongs to the technical field of wine brewing. The technology content comprises steps of raw material crushing, liquefaction and gelatinization, starter addition, wort-dividing fermentation, mixed fermentation and distillation, wherein the wort-separating fermentation comprises dividing a wort added with a starter into two portions according to a ratio, and then performing fermentation; concretely, inoculating a high-ester-yield saccharomyces cerevisiae culture solution to a first wort for fermentation, controlling the inoculation amount to be 1-3%, and performing fermentation culturing at 27-33 DEG C for 20-30 h; inoculating a lactic acid bacteria culture solution to a second wort portion, controlling the inoculation amount to be 0.5-2%, and performing fermentation culturing at 33-39 DEG C for 20-30 h; and then performing mixed fermentation. The advantages comprise that influence of environment factors to the fermentation process is eliminated, automatic and mechanized operation during brewing of the Luzhou-flavor liquor is realized, when the content of a high-flavor substance in the Luzhou-flavor liquor is kept, the raw-material liquor yield is substantially improved and the fermentation period is shortened, and thus the production efficiency of the Luzhou-flavor liquor is substantially improved.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Metallurgical auxiliary material screening type anti-blocking discharging device

InactiveCN105540083AAvoid cloggingContinuous and uniform feedingLarge containersProduction rateDrive shaft
The invention discloses a metallurgical auxiliary material screening type anti-blocking discharging device. The metallurgical auxiliary material screening type anti-blocking discharging device comprises a discharging barrel and an anti-blocking device, wherein a feeding hopper is arranged at the top end of the discharging barrel; a cylindrical discharging outlet is formed in the bottom end of the discharging barrel and located above a ball press machine. The anti-blocking device comprises a motor, a transmission shaft, a screen and an anti-blocking paddle, wherein the motor is located at the top end of the discharging barrel; the transmission shaft is located inside the discharging barrel and connected with the motor; the screen is in a circular ring shape and fixed to the upper portion of the transmission shaft; the outer diameter of the screen is smaller than the inner diameter of the discharging barrel; the anti-blocking paddle is in a spirally ascending shape and fixed to the lower end of the transmission shaft; the lower end of the transmission shaft extends into the discharging outlet. By means of the scheme, the motor, the transmission shaft, the screen and the anti-blocking paddle can effectively prevent metallurgical auxiliary materials from being blocked, caking, forming a hole and the like in the discharging device, continuous and even discharging of the metallurgical auxiliary materials can be ensured, and the harmful effects on the quality and productivity of metallurgical auxiliary material balling due to uneven and untimely discharging are eliminated.
Owner:CHONGQING HAIDE METALLURGY MATERIAL CO LTD

Cigarette bundle filling device of side-opening type molded cigarette box

InactiveCN102616399ARealize mechanized fillingSimple structurePackaging cigaretteEngineeringMechanical engineering
The invention discloses a cigarette bundle filling device of a side-opening type molded cigarette box, comprising a bracket and a half-opening type mould box erected on the bracket, wherein the mould box comprises first and second side plates which are oppositely arranged in parallel, and top plates connected with the upper ends of the first and second side plates; the mould box is provided with a cigarette bundle inlet, and a cigarette bundle outlet is arranged on the bottom surface of the mould box; the outlet is surrounded by packaging paper for bearing a cigarette bundle; clamping mechanisms for clamping the packaging paper are arranged at the outer sides of the first and second side plates; the mould is internally provided with a pressing plate for pressing the cigarette bundle entering the mould box and the packing paper surrounding on the outlet into the side-opening type molded cigarette box below the half-opening type mould box; and the upper part of the half-opening type mould box is provided with a hoisting mechanism for driving the pressing plate to hoist. The cigarette bundle filling device of the side-opening type molded cigarette box, disclosed by the invention, has the advantage of simple structure, realizes the automatic filling of a side-opening type molded box, eliminates the quality problem caused by manual filling, and improves the production efficiency.
Owner:CHINA TOBACCO SHANDONG IND
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