32results about How to "Guaranteed anti-corrosion" patented technology

The invention discloses a backfilling process for a large ultra-deep circulating water pipe, comprising the steps of: (1) constructing a sand bedding layer, wherein the sand bedding layer is 1000-1500 mm in thickness and is made of moderate-coarse sand and coarse sand; (2) covering the pipe by using concrete, wherein the concrete layer is 4000-5500 mm in thickness; and putting a circulating waterpipe on the sand bedding layer; (3) backfilling: paving a stone chip layer on the concrete layer, wherein each backfilling layer is less than or equal to 500 mm in thickness, the compactedness is more than 90%, and the total thickness of the stone chip layer is 3000-4500 mm; paving a macadam layer on the stone chip layer, wherein the maximum grain size of the macadam is not more than 100 mm, eachbackfilling layer is less than or equal to 500 mm in thickness, the compactedness is more than 85%, and the macadam layer is 4000-6000 mm in thickness. By use of the backfilling process, the anticorrosion performance of the large ultra-deep circulating water pipe can be improved so that the pipe can be effectively prevented from corrosion for the service life of 60 years.

The invention relates to a corrosion inhibitor film coating pipe cleaning device for a high-sulfur-containing moisture gathering and transportation pipeline. The pipe cleaning device mainly comprises a corrosion inhibitor storage and spray coating cavity, a chemical reagent storage and release cavity and circular corrosion inhibitor film coating brushes. The multiple functions of corrosion inhibitor atomization first-stage spray coating, circular brush rotating second-stage film coating, removal of solid impurities at the front end of the pipe cleaning device and the like are integrated, all-dimensional multi-angle corrosion inhibitor film coating of the inner wall of the pipe is achieved, and the film coating quality is improved. The corrosion inhibitor storage and spray coating cavity is designed, the high-pressure natural gas drives a piston to move, corrosion inhibitor in the cavity is extruded, is sprayed out of small holes in a mist mode and then adheres to the inner wall of the pipe, and therefore the first-stage corrosion inhibitor film coating is achieved. The circular corrosion inhibitor film coating brushes are designed, the high-pressure natural gas drives the circular brushes to rotate, and therefore the corrosion inhibitor which is deposited in the pipe can be uniformly dispersed on the inner wall of the pipeline, and the corrosion inhibitor second-stage film coating is achieved. The chemical reagent storage and release cavity is designed, the solid impurities at the front end of the pipe cleaning device are dissolved by a chemical reagent, and therefore the situation that the pipe cleaning ball collection operation is safe and stable is guaranteed.

The invention discloses a liquid metal battery anti-corrosion sealing structure and an assembly method thereof, comprising a liquid metal battery sealing electrode, a cover plate with a liquid sealing wall and a liquid sealing bowl holder; the liquid metal battery sealing electrode includes an electrode core , the electrode core is provided with an upper transition piece and a lower transition piece, and an insulating piece is arranged between the upper transition piece and the lower transition piece; Fluid connection; the cover plate with liquid seal wall is set on the upper transition piece, and the liquid seal wall extends downwards in the upper groove of the liquid seal bowl holder; the liquid seal bowl holder and the cover plate with liquid seal wall are filled with heat-cured Liquid salt. This structure solves the technical problems of anti-corrosion and sealing of the liquid metal battery working at room temperature and high temperature for a long time, optimizes the space utilization of the battery, and reduces the cost of battery preparation.

The invention discloses a production method of a bright stainless steel pot. The production method comprises the steps that firstly, material selecting and cogging are conducted, and a stainless steel billet material with the thickness being 0.5-1.0 mm is obtained; secondly, stretching oil is smeared on the stainless steel billet material, the stainless steel billet material is covered with a PE protective film and then placed into a first stretching mould to be stabilized and positioned, and a first-time material pressing machine is started to conduct first-time stretching; thirdly, a stainless steel semi-finished product is taken, the PE protective film on the surface of the stainless steel semi-finished product is removed, the stretching oil on the surface is wiped out, and the stainless steel semi-finished product is sent into a hearth of a bright annealing furnace with the temperature being 1000 DEG C-1150 DEG C, and the heat preservation time is 18-25 minutes; and fourthly, the stainless steel semi-finished product is coated with stretching oil and placed in a second stretching mould, frame erecting and positioning are conducted, a layer of tensile film is sealed, and a second-time material pressing machine is started to conduct second-time stretching. According to the production method of the bright stainless steel pot, the tensile depth of the stainless steel pot is deepened, and the bright effect and the anticorrosion property of the surface of the stainless steel pot are effectively guaranteed.

The invention relates to the technical field of fresh corn processing, and particularly discloses corn fresh-keeping equipment which comprises a material distributing hopper, a material distributing plate, a material guiding plate, a conveying belt, a baffle assembly, a conveying roller way, a first fan, a second fan, a beard stripping device with a first beard stripping disc and a second beard stripping disc, a spraying device and an ultraviolet device. The invention further discloses a corn fresh-keeping method implemented by using the corn fresh-keeping device. By arranging the first fan, impurities on the periphery of corn can be blown away, corn stigma on the surface of the corn can be further stripped and the impurities can be further brushed away through the stigma stripping device, and the production efficiency is improved; ultraviolet sterilization can be carried out on the outer surface of the corn through the ultraviolet device, so that the sterile packaging condition is ensured; an antioxidant can be uniformly sprayed on the outer surface of the corn through the spraying device, and the antioxidant can be moderately blow-dried through the second fan, so that uniform corrosion prevention can be realized, and the dosage of the antioxidant can be ensured not to exceed the standard.