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1156 results about "Hot stamping" patented technology

Hot stamping or foil stamping is a printing method of relief printing in which pre-dried ink or foils are transferred to a surface at high temperatures. The non-polluting method has diversified since its rise to prominence in the 19th century to include a variety of colors and processes. After 1970s, hot stamping became one of the important methods of decoration on the surface of Plastic Products. Hot Stamping technology for plastic is now using for Electric Components (including TV frame, Audio components, Refrigerators etc.,) cosmetic containers (lipstick, cream, mascara, shampoo bottle etc), automobile parts (interior and exterior materials).

Steel plate for stamping and quenching and thermoforming method of steel plate

The invention discloses a steel plate for stamping and quenching and a thermoforming method of the steel plate. The steel plate comprises the following chemical components in percentage by weight: 0.14-0.28% of C, less than 0.40% of Si, 0.4-2.0% of Mn, less than or equal to 0.010% of P, less than or equal to 0.004% of S, 0.016-0.040% of Al, 0.15-0.8% of Cr, 0.015-0.12% of Ti, 0.0001-0.005% of B, less than or equal to 0.005% of N, and the balance of Fe and inevitable impurities. The thermoforming method comprises the following steps: blanking by shearing the steel plate, and heating at Ac3 to (Ac3+80) DEG C to carry out austenization; after insulating for 5-10 minutes in the heating furnace, immediately transferring the steel plate to a metal mold the inside of which is cooled by introducing water, and stamping at the high temperature of 650-850 DEG C; cooling the formed workpiece in the closed mold, and cooling the mold by water circulation in the mold, wherein the cooling rate is greater than the critical cooling rate when austenite forms martensite, and the temperature of the workpiece leaving the hot stamping production line is below 150 DEG C; and carrying out air-cooling to room temperature. The steel plate has the advantages of simple component system and favorable hardenability; and the substrate tissues, which are ferrite and pearlite, are processed by hot stamping andquenching to obtain the all martensitic structure. The tensile strength of the steel plate can be higher than 1300 N/mm<2>.
Owner:ANGANG STEEL CO LTD

Hot stamping forming method for variable strength distribution strong-strength steel plate part

InactiveCN103028645AImprove efficiencyReasonable intensity distributionShaping toolsPressesHot stampingHeating time
The invention discloses a hot stamping forming method for a variable strength distribution strong-strength steel plate part, relates to a hot-stamping forming method for a strong-strength steel plate part, and aims to solve the problems of difficulty in the effective adjustment of strength of different parts and incapability of obtaining rational strength distribution in a hot stamping forming process of a strong-strength steel plate. The method comprises the following steps of: 1, placing a strong-strength steel plate blank to be formed into a heater, and performing zonal control on first, second and third zones of the heater by correspondingly adopting different or the same heating temperature and different or the same heating time; 2, quickly transferring the heated strong-strength steel plate blank into a forming die within 3 to 5 seconds, quickly closing the forming die, and forming the strong-strength steel plate blank within 1 to 3 seconds; 3, keeping the forming die closed, and introducing cooling water into cooling holes in the forming die to reduce the temperature of the forming die to quench the strong-strength steel plate part; and 4, after the quenching is completed, opening the forming die, and taking out the obtained strong-strength steel plate part. The method is used for the hot forming of the strong-strength steel plate.
Owner:HARBIN INST OF TECH

Preparation method for laser hot stamping foil of metal coin and prepared product

The invention relates to the technology of laser holography anti-counterfeiting hot stamping, in particular to a preparation method for laser hot stamping foil of a metal coin and prepared laser hot stamping foil by using the method, and provides a preparation method for laser hot stamping foil of a metal coin and prepared laser hot stamping foil by using the method, which can adapt to gold stamping on the surface of the metal coin, enrich patterns on the surface of the metal coin, has an anti-counterfeiting function and is suitable for printing after stamping. The preparation method comprises the steps that a metallic nickel plate is manufactured, and a release layer, an imaging layer, a mold pressing layer, an aluminum coated layer and an adhesive layer are coated on a basement membrane strip, so that the metal coin has a brand-new effect, the operation process is simple and rapid, reproducibility of texts is good, large-scale production and durability are realized, the cost is reduced, the adhesion of the laser hot stamping foil is high, after being fastened on the surface of a metal product, the hot stamping foil does not easily fall off and has a smooth surface, through changing the formula of the adhesive layer and coating the adhesive layer for multiple times, a multi-layer bonding layer is formed, so that texts are firmly adhered on the surface of the metal, and wear resistance and weather fastness are realized.
Owner:HUBEI LHTC ANTI COUNTERFEITING TECH CO LTD

Method for machining high-strength steel hot stamping formed parts

The invention discloses a method for machining high-strength steel hot stamping formed parts. The main principle of the machining method is that partial tempering or annealing processing is carried out on the hot stamping formed parts with the uniform performance, gradient changes of the tempering or annealing temperature are achieved through heat conduction of a board, gradient changes of the performance are achieved, and the partial trimming and hole punching performance and the impact performance of the parts are improved on the premise that the high strength is kept on other portions. The method includes the implementation steps of according to three-dimensional structures of a trimming and hole punching region and an impact energy absorption region, designing corresponding high-frequency induction heating coils, partially tempering or annealing the trimming and hole punching region and the impact energy absorption region to enable the trimming and hole punching region and the impact energy absorption region to be at certain temperature, achieving the gradient changes of the tempering or annealing temperature, carrying out air cooling on the partially-tempered or partially-annealed parts to enable the partially-tempered or partially-annealed parts to be at certain temperature, and finally and rapidly moving the air-cooled hot stamping formed parts to a trimming and hole punching mold to carry out mold trimming and hole punching.
Owner:吉林省正轩车架有限公司

Hot stamping die of integrated cooling pipeline

The invention relates to a hot stamping die of an integrated cooling pipeline, belonging to the field of hot stamping and molding. The die comprises the following main parts: a concave die, a convex die, a cooling supporting block of the concave die and the convex die, and the like. By utilizing a water flow cooling mode, the hot stamping die avoids that the flow rate of cooling water close to a straight cooling pipeline has obvious difference from the flow rate of cooling water of a further part by a method that two-stage water flow buffering is adopted at a water inlet. A series of natural shape cooling water channels are formed in the hot stamping die by combining the shape of a molding piece, and the purposes of cooling and quenching of the molding piece are achieved through the direct heat exchange of the cooling water and the die so as to guarantee the uniform structure and the molding quality of the molding piece. The invention can solve the problem that a large-size complicated hog stamping die needs to be segmented during drilling and cooling at present so as to effectively solve the problem of difficult cooling of the hot stamping die at present. The cooling supporting block of the concave die and the convex die is made of non-die steel, and the die cost and the requirement on the die material of the molding piece are reduced through rust-proof treatment.
Owner:ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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