11 results about "Eco Pickled Surface" patented technology

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 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 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 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 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.