11 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.

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 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 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.