21 results about "Eco Pickled Surface" patented technology

The invention discloses an N06625 nickel-based alloy hot continuous rolling plate coil and an acid pickling surface treatment process thereof. The specific process steps are as follows: 1) heating; 2) rough rolling; (3) finish rolling; (4) coiling; (5) uncoiling and welding; 6) annealing; (7) phosphorus breaking; (8) acid pickling treatment; (9) coiling; treatment equipment in the step (8) comprises an acid pickling box, a cleaning box, a water removal device and an acid liquor treatment device; a water outlet I is formed in one side of the pickling box, a pair of connecting plates I and a pair of connecting plates II are symmetrically fixed in the pickling box, one ends of the rotating rollers I are rotationally connected with the pickling box, and the other ends of the rotating rollers I are rotationally connected with the connecting plates I and the connecting plates II correspondingly; a dewatering device is arranged on one side of the cleaning box, and the other side of the cleaning box is fixedly connected with the outlet end of the pickling box; and the acid liquor treatment device is arranged in the pickling box. The pickling solution is treated in real time through the acid solution treatment device, and the chemical activity of the pickling solution is stably maintained; and meanwhile, water remaining on the N06625 nickel-based alloy plate can be rapidly removed through the water removal device.

The utility model discloses a high formability economical duplex stainless steel plate pickling surface treatment device which comprises a pickling tank, a plurality of roll shafts and scraping mechanisms are arranged in the pickling tank, the roll shafts are used for changing the trend of a stainless steel plate, and the high formability economical duplex stainless steel plate pickling surface treatment device is characterized in that a pair of scraping mechanisms are symmetrically arranged on the upper side and the lower side of the stainless steel plate; the scraping mechanism comprises a fixing rod and a scraping plate, the scraping plate is hollow, a spring and a push plate are arranged in the scraping plate, the spring abuts against the push plate, a plurality of guide shafts are arranged on one side of the push plate and slidably connected with the side wall of the scraping plate, and one end of each guide shaft is fixedly connected with the fixing rod. According to the pickling device, the stainless steel plate can obtain enough time and sufficient pickling solution to fully react and eliminate oxidizing slag through a method of soaking and conveying the stainless steel plate in the pickling tank, and furthermore, oxide skin and the oxidizing slag can be cleaned more efficiently through mutual cooperation of the scraping mechanism, the flushing mechanism and the adsorption mechanism.

The invention discloses an N10276 nickel-based alloy hot continuous rolling plate coil and a pickling surface treatment process. The N10276 nickel-based alloy hot continuous rolling plate coil is characterized in that a nickel-based alloy plate comprises the following chemical components in percentage by weight: 15.0% < = Mo < = 17.0%, 14.50% < = Cr < = 16.50%, 4.0% < = Fe < = 7.0%, 3.0% < = W < = 4.50%, 2.50% < = Co, 1.0% < = Mn, 0.35% < = V, 0.08% < = Si and 0.04% < = P; s is less than or equal to 0.03%, and C is less than or equal to 0.01%. The process comprises the following steps: 1) preparing materials and heating; 2) rough rolling; (3) descaling; 4) finish rolling; (5) coiling; (6) uncoiling and welding; 7) annealing; 8) pickling; (9) cleaning, sucking and drying; (10) coiling; a drying device in the step 9 comprises a box body, a feeding port, a discharging port, a blowing mechanism, a water absorption mechanism, a drying mechanism, a pinch roll, a conveying roll and a partition plate. The feeding port and the discharging port are located in the two ends of the box body, and the partition plate is fixed in the box body and divides the box body into a blowing area and a drying area. The nickel-based alloy plate cleaning device prevents cleaning water from remaining on the surface of the nickel-based alloy plate and corroding the nickel-based alloy plate.

The invention relates to a countercurrent pickling regeneration oxidation recycling device and method, and belongs to the technical field of stainless steel production. In the countercurrent pickling regeneration oxidation cyclic utilization device, an outlet of a first pickling tank is connected with an inlet of a regeneration kettle through a fluid delivery pump; an outlet of the regeneration kettle is connected with an inlet of the oxidation kettle through a fluid delivery pump; an outlet of the oxidation kettle is connected with an inlet of the (n + 1) th pickling tank through a fluid conveying pump; and the pickling tanks are reversely communicated through pipelines: the outlet of the (n + 1) th pickling tank, the inlet of the nth pickling tank,..., the outlet of the second pickling tank and the inlet of the first pickling tank. Pickling fluid in the first pickling tank firstly passes through the regeneration kettle, then passes through the oxidation kettle, then enters the (n + 1) th pickling tank, then sequentially flows through the nth pickling tank and the (n-1) th pickling tank until the pickling fluid flows back to the first pickling tank and finally flows back to the regeneration kettle, so that a countercurrent pickling regeneration oxidation recycling system is formed, the acid mud amount and the pickling cost can be comprehensively reduced, and the pickling surface quality is improved; and harmful gas is avoided.

The utility model discloses a pickling surface treatment device for a hot-rolled ferritic stainless steel medium plate strip. The pickling surface treatment device comprises a pickling box, a cleaning device I and a cleaning device II, the cleaning device I is arranged in the pickling box, and the cleaning device II is fixedly connected to one end of the pickling box; the strip firstly penetrates through the cleaning device II to be subjected to surface impurity cleaning and then enters the pickling box to be subjected to pickling, the cleaning device I is controlled to continuously operate in the strip pickling process, and impurities falling into pickling liquid are removed out of the pickling box. Impurities such as oxide skin attached to the surface of a strip are cleaned through the cleaning device II, impurities entering a pickling solution are reduced, meanwhile, the impurities such as the oxide skin entering the pickling solution are cleaned in real time through the cleaning device I, the impurities are prevented from remaining in the pickling box for a long time to react with the pickling solution, and the pickling quality is improved. The concentration of the pickling solution is reduced.

The invention discloses an iron-chromium-aluminum electrothermal alloy cold-rolled steel strip pickling method which comprises the following steps: performing molten salt pretreatment on an annealed iron-chromium-aluminum electrothermal alloy cold-rolled steel strip to obtain an iron-chromium-aluminum electrothermal alloy cold-rolled steel strip with loose surface oxide skin, and controlling the temperature to be 400-500 DEG C and the control time to be 30-120 S; the iron-chromium-aluminum electrothermal alloy cold-rolled steel strip with the loose surface is subjected to water cooling and cleaning, and the iron-chromium-aluminum electrothermal alloy cold-rolled steel strip with part of loose oxide skin removed is obtained; the iron-chromium-aluminum electrothermal alloy cold-rolled steel strip with part of oxide skin removed is obtained through hydrochloric acid pre-pickling, in the hydrochloric acid pre-pickling process, the hydrochloric acid concentration is controlled to range from 200 g / L to 350 g / L, the temperature is controlled to range from 40 DEG C to 70 DEG C, and the pickling time is controlled to range from 50 s to 120 s; the method comprises the steps that acid pickling passivation is conducted through a mixed solution of hydrochloric acid and H2O2, the iron-chromium-aluminum electrothermal alloy cold-rolled steel strip with the oxide skin thoroughly removed is obtained, the acid pickling temperature is controlled to be 30-50 DEG C in the acid pickling process of the mixed solution of hydrochloric acid and H2O2, and the acid pickling time is controlled to be 50-120 s. The acid pickling surface which is smooth and clean and free of oxide skin residues can be obtained through the method.

The invention discloses an N08926 iron-nickel base alloy hot continuous rolling plate coil and an acid pickling surface treatment process. The process comprises the following specific steps that (1) a steel billet is prepared and put into a heating furnace to be heated; (2) high-pressure water descaling is conducted, specifically, oxide skin on the surface of the heated steel billet is removed through a high-pressure water spraying mechanism; (3) rough rolling is conducted, specifically, the heated steel billet is conveyed to a rough rolling machine through a conveying roller; 4) finish rolling; (5) coiling; (6) uncoiling and welding; (7) annealing is conducted, specifically, annealing treatment is conducted on the iron-nickel-based alloy hot-rolled plate through annealing equipment; (8) phosphorus breaking and shot blasting; (9) acid pickling is conducted, specifically, the iron-nickel-based alloy hot-rolled plate is subjected to acid pickling through acid pickling equipment to remove oxide skin; according to the acid pickling process, in the wringing treatment section in the acid pickling process, the brushing part and the wiping part can be controlled through the cleaning assembly to conduct impurity cleaning and acid liquor cleaning on the surface of the wringing roller in sequence, cleaning is relatively comprehensive, labor division is clear, and mutual interference is avoided.

The application discloses a pickling surface color difference control method for hot-rolled hot-formed steel, which is realized based on a thin slab short process production and comprises the following steps: S1, reducing the crown of the strip steel in the finishing rolling stage, so as to reduce the scale structure and grain boundary oxidation difference between the edge and the middle of the strip steel; S2, destroying the integrity of the scale structure in the tempering stage, so as to provide an artificial pickling core for the pickling process; and S3, selecting a corresponding pickling scheme according to the equipment conditions of the pickling unit process in the pickling stage. Through the control of the crown of the strip steel in the finishing rolling stage, the destruction of the scale structure in the tempering stage and the control of different pickling unit processes in the pickling stage, the width of the whitening area of the pickling surface of the hot-rolled hot-formed steel can be effectively reduced, the whiteness value difference between the edge and the middle of the strip steel can be reduced, and the whiteness uniformity of the pickling surface is improved.

The application discloses a kind of manufacturing methods of thin gauge hot forming pickling steel, including the following steps: hot metal desulphurization, converter smelting, refining, thin slab continuous casting, rotary descaling, soaking furnace heating, finishing rolling, coiling, cooling, flattening, straightening, pickling, rust-proof coating.The thin gauge hot forming pickling steel manufactured by the application has good structure and performance, and also has good pickling surface quality, that is, the surface iron oxide scale indentation defect of the thin gauge hot forming pickling steel is ≤2 places / 1000 m; the surface plate width middle portion whiteness value of the thin gauge hot forming pickling steel is ≥70%, and the difference between surface plate width edge portion whiteness value and middle portion whiteness value is ≤5%; the surface black and white stripe color difference defect number of the thin gauge hot forming pickling steel is ≤5 strips / 1000 m, solving the unique surface quality problem in the thin gauge hot forming pickling steel thin slab continuous casting and rolling production process.

The invention discloses a beta-type TB8 titanium alloy hot continuous rolling plate coil and an acid pickling surface treatment process. The treatment process comprises the steps that (1) a plate blank is fed to a heating furnace to be heated; (2) rough rolling; (3) steam descaling; 4) finish rolling; (5) coiling; (6) uncoiling and welding; 7) annealing; (8) shot blasting; 9) pickling; 10) cleaning after pickling; 11) cleaning the wringing roller; the device comprises a fixing frame, an adjusting mechanism, a flushing mechanism, a wringing roller and a cleaning mechanism. The adjusting mechanism is installed on the fixing frame, the two sets of washing mechanisms and the two sets of wringing rollers are correspondingly arranged and installed on the fixing frame, and the cleaning mechanism is installed on one side of the wringing rollers. By means of the cleaning mechanism, the cleaning procedure and the titanium alloy hot continuous rolling plate coil treatment process are conducted synchronously, production interruption caused by shutdown cleaning in a traditional technology is avoided, and secondary pollution caused by the fact that waste water flows back to the surface of the titanium alloy hot continuous rolling plate coil can be prevented.

The application discloses a high-hole-expanding-performance pickling steel plate and a production method thereof, and belongs to the technical field of automobile part manufacturing. The production method of the pickling steel plate comprises the following steps: A, pickling the steel plate; B, placing the pickled steel plate in an oxygen-free environment and heat treating at 650-750 DEG C, wherein a continuous bundle-shaped force is applied during the heat treating process. The application promotes the closure of the pickling surface micro-concave holes through high-temperature plastic deformation, effectively compensates for the surface defects caused by the pickling process, and improves the hole-expanding rate of the steel plate.

The application provides a chemical plating Ni-Co-P alloy process method suitable for high-strength steel, and comprises the following steps: surface finishing; degreasing treatment; pickling; surface adjustment; chemical plating of Ni-Co-P alloy; recovery; secondary countercurrent rinsing; water blowing, drying or hydrogen removal treatment on the plated workpiece; and closed treatment. The application solves the problems of poor self-catalytic ability of high-strength alloy steel for equipment, difficulty in plating, poor wear resistance of the chemical plating nickel-cobalt-phosphorus alloy layer and other problems. Meanwhile, the application solves the problems of high porosity and easy blistering of the commonly used alloy steel chemical plating nickel-cobalt-phosphorus layer. The application has the advantages of low plating temperature, fast deposition speed, strong plating solution stability, long plating solution service cycle, uniform, fine and bright plating layer, no lead and cadmium heavy metal ions in the plating solution, simple wastewater treatment, reduced environmental pollution risk, excellent comprehensive performance index of the plating layer, and meeting the requirements of corrosion resistance and wear resistance under long storage and severe conditions of equipment.

The utility model discloses a mixed acid pickling surface treatment device for a kovar alloy hot-rolled plate coil. The mixed acid pickling surface treatment device comprises a treatment bin, a conveying mechanism, a cleaning mechanism and a spraying mechanism, two groups of partition plates are arranged in the treatment bin, the inner sides of the two groups of partition plates are cleaning areas, the outer sides of the two groups of partition plates are pickling areas and rinsing areas respectively, one end of the pickling area of the treatment bin is provided with a feed port, and one end of the rinsing area of the treatment bin is provided with a discharge port; a plurality of groups of conveying mechanisms are arranged and are distributed in the pickling area and the rinsing area of the treatment bin, the cleaning mechanism is mounted in the cleaning area of the treatment bin, and the spraying mechanism is mounted in the rinsing area of the treatment bin. According to the utility model, the cleaning mechanism is used for carrying out follow-up treatment on oxide skin and pickling solution which are remained on the surface of the Kovar alloy hot-rolled plate coil; while the cleaning effect of the cleaning mechanism is guaranteed, the cleaning quality and the follow-up treatment effect of the hot-rolled plate coil are guaranteed.

The invention discloses an N04400 nickel-copper alloy hot continuous rolling plate coil and an acid pickling surface treatment technology. The technology comprises the following specific steps that (1) a steel billet is prepared and put into a heating furnace to be heated; 2) descaling with high-pressure water; (3) rough rolling is conducted, specifically, the heated steel billet is conveyed to a rough rolling machine through a conveying roller; 4) finish rolling: conveying into a finish rolling mechanism, wherein the finish rolling adopts accelerated rolling; 5) coiling: after finish rolling, feeding into a coiling mechanism for coiling; (6) uncoiling and welding; (7) annealing is conducted, specifically, the nickel-copper alloy hot-rolled plate is subjected to annealing treatment through an annealing mechanism, and then cooling is conducted; (8) phosphorus breaking and shot blasting; the annealed nickel-copper alloy hot-rolled plate is subjected to shot blasting treatment through a shot blasting machine; (9) acid pickling is conducted, specifically, the nickel-copper alloy hot-rolled plate is subjected to acid pickling through an acid pickling mechanism to remove oxide skin; and 10) cleaning and drying. Acid liquor mixed with oxide skin and other impurities on the upper surface layer of the hot-rolled plate can be transferred in the pickling process section, and a large amount of acid liquor is prevented from being deposited on the surface layer of the hot-rolled plate.

The invention provides a GCr15 steel bearing surface manganese phosphate conversion coating strengthening treatment method, which comprises: carrying out degreasing, acetone cleaning, water washing, acid washing, surface adjustment and phosphorization on a GCr15 steel bearing to obtain a phosphorized GCr15 steel bearing, carrying out refining bath treatment, water washing and blow-drying, carrying out oil bath treatment for 5-10 min at a temperature of 20-30 DEG C, carrying out treatment for 10 h at a temperature of 60 DEG C in a nitrogen atmosphere, and naturally cooling to a room temperature to obtain the GCr15 steel bearing surface manganese phosphate conversion coating. The manganese phosphate coating bearing is obtained. According to the method, the fatigue limit of the GCr15 steel bearing is increased, the service life of the GCr15 steel bearing is prolonged, the strengthening treatment efficiency of the bearing is improved, the cost is reduced, and the method is suitable for industrial production and has good application prospects.

The invention discloses an N02200 pure nickel plate hot continuous rolling plate coil and acid pickling surface treatment device and process. The specific process is as follows: S1, heating; s2, hot rolling; s3, shot blasting; s4, mixed acid pickling; s5, cleaning and scraping; s6, extruding and cleaning; an N02200 pure nickel plate hot continuous rolling plate coil and acid pickling surface treatment device comprises a box body, a partition plate, a spraying pipe, an upper cover plate, an access hole, a scraping mechanism and a cleaning mechanism. An upper cover plate is arranged at the upper part of the box body, an access hole is formed in the upper cover plate, a partition plate is arranged in the middle in the box body, strip steel is subjected to acid pickling operation at the front end of the partition plate, a plurality of groups of spraying pipes are arranged behind the partition plate, a scraping mechanism is arranged behind the spraying pipes, and a cleaning mechanism is arranged behind the scraping mechanism; the strip steel passing through the scraping mechanism is tensioned in the scraping mechanism, and residual liquid and impurities on the surface of the strip steel are scraped; the cleaning mechanism is used for scrubbing the surface of the strip steel while extruding the surface of the strip steel; and the scrubbing extrusion roller can be quickly disassembled and is convenient to maintain.

The invention discloses 500MPa-grade hot-rolled high-strength steel free of surface chromatic aberration and a preparation method thereof.The surface chromatic aberration of 500MPa-grade hot-rolled strip steel is controlled by controlling a hot rolling process and an acid pickling process, and the preparation method specifically comprises the following steps that a continuous casting steel billet is subjected to hot rolling and finish rolling, then a dispersed cooling mode is adopted, coiling is conducted, and a hot rolled steel coil is obtained; the hot rolled steel coil is subjected to acid pickling, oxide scale is removed through shallow slot turbulent flow acid pickling, the withdrawal and straightening elongation is controlled according to different thicknesses, the insertion amount of a working roller is set according to the withdrawal and straightening elongation, then three-stage acid pickling is conducted through an acid pickling tank, five-stage rinsing is conducted through a rinsing tank, and the hot-rolled high-strength steel is obtained. According to the method disclosed by the invention, the limitation that the surface quality is controlled by depending on a single process traditionally is broken through by carrying out optimization design on the process technical parameters of the whole process and multiple processes, a control thought of multi-process coupling type design is provided, and effective control on the color difference of the acid-pickled surface of the 500MPa-grade hot-rolled strip steel is realized.

The application provides a continuous acid flat line pickling flow calculation method, system, device and medium, and the method comprises the following steps: acquiring the strip steel pickling speed of the current pickling unit in real time, and determining the pickling flow of the main spray beam of the acid flat line; acquiring the real-time temperature of the acid liquid in the pickling tank, and determining the pickling flow temperature coefficient; acquiring the specification parameters of the strip steel to be pickled, and determining the pickling flow pressure coefficient; acquiring the hot rolling coiling temperature, and determining the hot rolling coiling temperature influence coefficient based on a preset temperature influence coefficient table; and calculating the pickling flow of the side spray beam of the acid flat line based on the strip steel pickling speed of the current pickling unit, the pickling flow temperature coefficient, the pickling flow pressure coefficient and the hot rolling coiling temperature influence coefficient. According to different pickling speeds and different steel grades, the application can calculate the corresponding pickling circulation flow, and then control the pickling circulation flow, accurately control the concentration and spraying pressure of the acid liquid in the acid tank, and ensure the stability of the pickling surface quality and iron loss of the hot rolled strip steel.

The invention discloses a 4J42 Kovar alloy hot continuous rolling plate coil and a pickling surface treatment process. The 4J42 Kovar alloy hot continuous rolling plate coil is characterized in that a Kovar alloy plate comprises the following chemical components in percentage by weight: not less than 40% and not more than 43% of Ni, not more than 1.0% of Co, not more than 0.05% of C, not more than 0.8% of Mn, not more than 0.3% of Si and not more than 0.02% of P; s is less than or equal to 0.02%; the process comprises the following steps: 1) preparing materials and heating; 2) rough rolling; (3) descaling; 4) finish rolling; 5) laminar cooling; (6) coiling; (7) uncoiling and welding; 8) annealing; 9) pickling; 10) cleaning and drying; the laminar cooling device comprises a rack and a cooling mechanism; the rack is fixed on the ground; the cooling mechanism is mounted on the rack; the pickling device comprises a box body, a feeding hole and a discharging hole; the box body is fixed to the ground, and the feeding port and the discharging port are located in the two ends of the box body respectively. The laminar flow pipe below the kovar alloy plate is prevented from being blocked; the oxide skin can be prevented from being accumulated on the two sides of the chain plate, and the accumulated oxide skin can be prevented from scratching the side wall of the kovar alloy plate.

The utility model discloses a pickling surface treatment device for a beta-type titanium alloy hot continuous rolling plate coil. The pickling surface treatment device comprises a pickling tank, a cleaning device and a collecting device, two groups of upper carrier rollers and two groups of lower carrier rollers are arranged in the pickling tank; a water outlet is formed in the bottom of the pickling tank; cleaning openings are formed in two ends of the pickling tank; a vent hole is formed in the top of the pickling tank; the cleaning device is arranged at one end of the pickling tank; the collecting device is connected with the pickling tank and the filter tank. The cleaning device is used for cleaning oxide skin on the surface of the titanium alloy plate, so that impurities such as the oxide skin entering a pickling solution are effectively reduced; meanwhile, the collecting device cleans impurities entering the pickling solution, and the situation that the impurities continuously react with the pickling solution, and consequently the concentration of the pickling solution is reduced is avoided.

The application adopts a three-time electric annealing process, comprises a new electric annealing process, heats the workpiece through resistance heat, and monitors the temperature through high-temperature infrared temperature measurement, realizes excellent surface quality and performance requirements of the material, effectively solves the problem of excessive oxidation of the surface of the high-temperature alloy hexagonal bar in the cold drawing process, prevents the surface roughness pit, realizes the surface quality of the hexagonal bar with qualified performance, excellent surface quality and excellent size control.