14 results about "Aluminized steel" patented technology

The utility model relates to the technical field of aluminized steel pipes, in particular to a stable aluminized steel pipe. According to the technical scheme, the device comprises a cylindrical first steel pipe body structure with a center shaft in the left-right direction, the left side of the first steel pipe body structure is connected with a second steel pipe body structure in a wrapping mode, and a center conveying channel penetrating through the left side of the whole is formed in the center of the right side of the first steel pipe body structure; the connecting structure is characterized in that a cylindrical combined stable connection matching groove is formed in the left side of the second steel pipe main body structure, and first welding matching grooves with rightward openings are formed in the position, close to the right side, of the outer cylindrical surface of the second steel pipe main body structure and are circumferentially and uniformly distributed. The utility model has the advantages that the connecting and combining precision during later welding is higher, the welding precision of the welding position is higher, the stability during welding is better, the matching strength during welding is improved, and the connecting strength during welding is firmer.

A high-surface-quality aluminum-clad laminate / strip steel suitable for nitriding and its production method are disclosed. The steel's chemical composition (by weight percentage) is as follows: C 0.01–0.07%, 0 < Si ≤ 0.005%, Mn 0.4–1.2%, P 0.008–0.020%, S ≤ 0.008%, 0 < Al ≤ 0.005%, Cr 0.03–0.60%, N 0.011–0.030%, 0 < O ≤ 0.01%, Cu 0.01–0.15%, Ca 0.001–0.004%, with optional addition of Ti 0.01–0.06%, Nb 0.01–0.03%, and V. One or more of the following components are present in the range of 0.01% to 0.03%, with the balance including Fe and unavoidable impurities; and simultaneously satisfying the following conditions: 0.5C + 3.83N + O + 0.05Cu + 0.047Cr - 0.89Al - 1.15Si ≥ 0.085; 150(C - 0.01) + 60P + 300N + 5Mn + 3Cr ≥ 12.0. The obtained steel plate has high strength, excellent plasticity and aluminizing properties, and eliminates defects such as surface peeling and slag inclusions. Aluminized steel sheets and strips produced from this steel have excellent surface quality and high strength, and can meet the requirements of subsequent high-temperature nitriding processes. They are mainly used for the production of aluminized steel sheets and strips for woks or other applications requiring high strength.

A coated steel sheet includes a steel strip and an aluminum-based coating. In some versions, the steel sheet includes, in percent weight: carbon: less than 0.020%, manganese: less than 0.40%, aluminum: less than 0.015%, nitrogen: less than 0.008%, and the balance including iron and impurities. The steel strip includes a free nitrogen concentration of greater than 40 parts per million (PPM). The aluminum-based coating is disposed on at least one surface of the steel strip.

The application provides an annealing method of an aluminized steel plate, and belongs to the technical field of heat treatment of metal composite materials. A trace amount of hydrogen is used to maintain a surface reduction state and prevent oxidation; high-concentration nitrogen is chemically adsorbed on the surface of the steel and diffused into the surface layer to form an extremely thin controllable nitriding layer; by controlling the temperature and time of annealing, the diffusion depth and concentration of nitrogen atoms are precisely controlled, only a solid-solution nitrogen or a dispersedly-distributed nitride strengthening layer is formed, and the generation of a brittle phase is avoided, so that the synergistic effect of surface hardening and matrix toughness maintenance is realized.

Preparation of coated steel comprising the steps of hot or cold rolling, slurry blasting and coating. A hot or cold rolling step in which a steel ingot is rolled to form a steel strip. A slurry blasting step comprising slurry blasting at least one side of the steel strip. A coating step following slurry blasting comprising coating the steel strip with an aluminum based coating.

The application discloses a kind of plating adhesion detection system and detection method, belong to metal material surface plating detection technical field.Detection system includes deformation mould, flat mould and hydraulic press, deformation mould includes bi-convex upper die and bi-concave lower die, respectively installed on hydraulic press for sample stamping deformation;Flat mould can be detachably installed on hydraulic press, for flattening after sample deformation.Detection method includes: sample is placed on bi-concave lower die, and hydraulic press drives bi-convex upper die to go down and carries out simulation stamping deformation;After sample deformation, it is placed into flat mould and flattened;Paste adhesive tape in flattening area and tear, observe whether to take out plating fragment to judge adhesion.The application truly simulates the composite stress under the condition of stamping R angle or flanging by bi-convex upper die and bi-concave lower die cooperation, combined with flat tape detection, with the advantages of simple structure, low cost, convenient operation, high detection accuracy, suitable for galvanizing, aluminizing steel coil production line on-site rapid off-line detection.

The utility model discloses a compression-resistant aluminized steel pipe which comprises a steel pipe body, sliding grooves are formed in the surface of the steel pipe body, reinforcing ribs are connected to the surface of the steel pipe body in a sliding mode through the sliding grooves, and connecting flanges are arranged at the two ends of the steel pipe body. A tensioning mechanism used for adjusting the tightness of the reinforcing ribs is arranged between the reinforcing ribs and the connecting flange and comprises a connecting cylinder, the connecting cylinder is slidably connected with the surface of the steel pipe body, the surface of the connecting cylinder is in threaded connection with an adjusting cylinder, and the end, away from the connecting cylinder, of the adjusting cylinder is fixedly connected with the connecting flange. The utility model relates to the technical field of steel pipes. According to the compression-resistant aluminized steel pipe, the tensioning mechanism is arranged, the adjusting cylinder is rotated, the adjusting cylinder rotates to drive the connecting cylinder to slide along the surface of the steel pipe body, the connecting cylinder slides to tighten the reinforcing ribs through the connecting blocks, the reinforcing ribs tighten to reinforce the steel pipe body, and the compression resistance of the steel pipe body is effectively improved.

The present invention relates to an aluminized steel sheet for automobiles and the like and a method for manufacturing the same.

Preparing a coated steel including the steps of hot rolling or cold rolling, slurry blasting, and coating. The step of hot rolling or cold rolling including rolling a steel ingot to form a steel strip. The step of slurry blasting including slurry blasting at least one side of the steel strip. The step of coating being performed after slurry blasting and including coating the steel strip with an aluminum-based coating.

Preparing a coated steel including the steps of hot rolling or cold rolling, slurry blasting, and coating. The step of hot rolling or cold rolling including rolling a steel ingot to form a steel strip. The step of slurry blasting including slurry blasting at least one side of the steel strip. The step of coating being performed after slurry blasting and including coating the steel strip with an aluminum-based coating.

The invention relates to an aluminized steel plate and a preparation method and application thereof, and belongs to the technical field of aluminized steel plates. The steel plate comprises a base plate, an aluminum-containing coating and a zinc-containing layer, the aluminum-containing coating is attached to the base plate, the zinc-containing layer is attached to the side, away from the base plate, of the aluminum-containing coating, and the zinc-containing layer comprises a zinc-containing alloy layer and / or a zinc-containing oxide layer; the zinc-containing layer formed by the zinc-containing alloy layer and / or the zinc-containing oxide layer is arranged on the aluminum-containing plating layer, so that the friction coefficient can be reduced in the hot stamping process, and the problem that galling or die damage is easily caused in the hot stamping forming process of an aluminum-plated steel plate at present can be solved; meanwhile, the phosphating performance can be improved, so that the subsequent electrophoresis corrosion resistance and adhesion performance are facilitated, and the adhesion of a paint surface is facilitated.

The utility model relates to the technical field of aluminized steel pipe machining, in particular to an aluminized steel pipe heat preservation placing frame. According to the technical scheme, the device comprises a cylindrical main body placement matching seat, a cylindrical placement supporting stabilizing groove with the same center axis is formed in the upper end of the main body placement matching seat, and a conical limiting supporting matching column with the same center axis is arranged in the center of the placement supporting stabilizing groove; overall avoiding safety grooves which are circumferentially and uniformly distributed and completely penetrate through the overall outer side are formed in the outer side of the placement supporting and stabilizing groove, and a limiting fastening combination hole which completely penetrates through the overall outer side is formed in the position, located between every two adjacent overall avoiding safety grooves, in the placement supporting and stabilizing groove. The utility model has the advantages that the heat preservation effect of the end part of the steel pipe can be ensured to be better, the quality of the end part of a steel pipe product is more reliable, the safety is higher and the durability is stronger during later use, the efficiency is higher during heat preservation processing of the steel pipe, and the overall occupied space is smaller.

The present invention relates to an aluminized steel sheet for automobiles and the like, a hot-formed member manufactured using the aluminized steel sheet, and methods for manufacturing the aluminized steel sheet and the hot-formed member.

The present invention relates to a hot-formed part used for automobile parts and the like and relates to a hot-formed part manufactured by hot-forming an aluminized steel material and a method for manufacturing same.