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888results about How to "Fully filled" patented technology

Concrete wall and bottom plate water seepage crack repair method

The invention discloses a concrete wall and bottom plate water seepage crack repair method. The method comprises the following steps that wall and bottom plate cracks are found out and marked; the crack of which the width is larger than 0.3 mm is subjected to digging into a V-shaped groove; dust, dirt and loose parts of the surface of concrete in the V-shaped groove area are removed and washed with water; layered dense blocking and maintenance are conducted on the V-shaped groove through a waterproof leaking stoppage part, and meanwhile, a grouting nozzle is implanted; grouting holes are obliquely drilled in the two sides of the crack, and a grouting nozzle is installed; and after final set of the waterproof leaking stoppage part, the grouting holes are circularly subjected to pressure grouting; and after grout is completed solidified, the grouting nozzles are disassembled. According to the method, by obliquely drilling the grouting holes in the two sides of the crack and installing the grouting nozzle, a plurality of channels communicating with the interior of the crack are formed, the water pressure of the interior of the crack can be reduced, grout can be injected into the crackconveniently in the later period, through permeation of the grout, the water seepage crack is sealed after the grout is solidified, and accordingly, the water seepage crack leaking stoppage effect isachieved so that underground construction water seepage accidents can be avoided.
Owner:中铁二十三局集团第四工程有限公司

Gas injection point retreating type coal underground gasification system and process

The invention discloses a gas injection point retreating type coal underground gasification system and process. The gas injection point retreating type coal underground gasification system comprises an airway arranged in a coal layer and multiple coal underground gasification units, wherein the airway is connected to the multiple coal underground gasification units; and the technical steps are sequentially as follows: a step of cold-state testing, a step of ignition on a gasification working surface, a step of debugging of the gasification working surface and a step of gasification normal production process. According to the invention, mud can be prevented from blocking the gas injection point efficiently, and the coal layer can be exploited to the maximum extent, so that possibility of thoroughly cutting off the leakage of a gasification agent to a combustion space area is realized while safe retreating in the coal underground gasification process is realized, filling of the combustion space area is realized, collapse of the ground surface caused by the gasification is removed, stability of the gasification channel structure is guaranteed, problem of the short circuit of the gasification agent caused by a channel which is resulted from collapse of a coal layer plate in the gasification area in the early stage and the gasification channel at the later stage of the underground gasification is solved, the quality of the coal gas is improved, and safe and reliable coal gas production and high gasification rate are achieved.
Owner:HENAN ZHONGKUANG KENENG COAL CHEM

Universal rolling technology for rails

The invention discloses a universal rolling technology for rails, which can prevent the head of a rail-shaped rolled piece from being suspended in a rolling process. The technology comprises the following steps: a billet is cogged in a BD region to form a rail-shaped rolled piece; after the rail-shaped rolled piece is rolled out of a pilot hole of the BD region and before the rail-shaped rolled piece enters a universal region, the waist of the rail-shaped rolled piece is changed into a vertical state through the overturning of a turnover device; then, the rail-shaped rolled piece is conveyed into the universal region for intermediate rolling and fine rolling through a vertical universal mill and a vertical edging mill; in the rolling process of the universal region, the waist of the rail-shaped rolled piece is in the vertical state, the abdominal cavity of the rail-shaped rolled piece is rolled through a left vertical roller and a right vertical roller of the vertical universal mill, and the head of the rail-shaped rolled piece is supported by the left vertical roller and the right vertical roller of the vertical universal mill; and the rail-shaped rolled piece is conveyed into a rail printer for printing, and the rail-shaped rolled piece after printing is conveyed into a cooling bed for cooling. By adopting the technology, the final finished rail has the advantages that the head is fully filled, the abdominal cavity has better processing quality, and the working tread is better filled and has better symmetry.
Owner:PANGANG GROUP VANADIUM TITANIUM & RESOURCES +1

Brazing filler metal for brazing W-Cu composite and Fe-based alloy, method and brazing technique

The invention discloses brazing filler metal for brazing a W-Cu composite and Fe-based alloy, a method and a brazing technique. The brazing filler metal is in a foil piece strip shape. The thickness of the brazing filler metal ranges from 50 micrometers to 100 micrometers. The brazing filler metal comprises, by weight, 6.0%-9.0% of Mn, 3.5%-5% of Co, 0.3%-1.7% of Ni, 2.0%-5.0% of Zr, 1.2%-2.8% of Ti, and the balance Cu. The brazing temperature of the brazing filler metal ranges from 1000 DEG C to 1050 DEG C, the melting temperature of the brazing filler metal is moderate, and the brazing filler metal is uniformly melted; diffusion and the interface reaction of alloy elements in the brazed connection process can be promoted through a brazing filler metal foil piece, and the wetting and spreading capacity of the brazing filler metal on the surfaces of the W-Cu composite and the Fe-based sintered alloy is improved; crystal particles are refined, residual stress is reduced, and the mechanical performance of joints is improved; the brazing technique for connecting the W-Cu composite and the Fe-based sintered alloy through the brazing filler metal is stable and reliable, vacuum brazed connection is used, a component is in a vacuum state in the heating process, the whole component does not deform, the defects such as microscopic cracks, air holes and inclusions are avoided, and the wetting and spreading capacity of the surface of the brazing filler metal is good.
Owner:JIANGSU UNIV OF SCI & TECH

Ultrasonic vibration activation assisted microwave sintering furnace

The invention aims at designing an ultrasonic vibration activation assisted sintering microwave sintering furnace according to the practical needs of new material research and development for the sintering technology and the advantages of the ultrasonic technology. The ultrasonic vibration activation assisted microwave sintering furnace is composed of a microwave source, magnetrons, a waveguide tube, a wave leading crucible or a common high-temperature crucible, an amplitude-change pole, an amplitude-change pole supporting frame, an ultrasonic generator, an ultrasonic transducer and the like. Electric signals generated by the ultrasonic generator are converted into ultrasonic vibration through the ultrasonic transducer, the ultrasonic vibration is transmitted to a sample to be sintered in the wave leading crucible or the common high-temperature crucible through the amplitude-change pole and the crucible, the sample to be sintered is in the ultrasonic vibration state in the microwave sintering process, material particles of the sample to be sintered are vibrated at a high speed under the microwave sintering temperature through the microwave radiation action, crystalline grains of the sample to be sintered are promoted to be quickly and evenly nucleated and grow or part of matter is evenly melted for quickly filling a gap. By means of the ultrasonic vibration activation assisted microwave sintering furnace, the sintered microstructure of a block sample can be more uniform and more compact, and the sample is better in the microstructure.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method for producing wooden floor with platinum crystal surface

InactiveCN101301764ASolve the problem of insufficient adhesionIncrease pressureLiquid surface applicatorsWood treatment detailsPlatinumLacquer
The invention discloses a production method for a platinum crystal face wood floor, which comprises the production steps as follows: drying and curing of floor blank, blank processing, primer and paint painting. The invention adopts a vertical-lubrication penetration roller spraying technique, carries out the pre-heating disposal, drying disposal, balance disposal, humidifying treatment, temperature reduction kiln outgoing and curing to the floor blank, then processes the blank and paints the primer; the paint is then coated by adopting eight-bottom and four-surface so as to gain a finished product. The platinum crystal face wood floor prepared by the invention has the advantages that the paint adhesion of the tree with high grease (oil) content is improved; the floor has ultra-strong adhesion from the interior of the wood to the surface; a production process of eight-bottom and four-surface is adopted to combine an elastic, abration and friction resistance environmental protection paint; therefore, the surface filling of the floor is saturated, clear and natural, the chamfers are smoother and the wood floor is more scraping- resistant and wear-resistant; the one-off qualification rate of the product is improved and achieves 99.5 percent, thus improving the quality of the product.
Owner:浙江上臣家居科技有限公司
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