The specific inspection criteria and methods refer to QB1877-1993 Packaging and Decoration of Tinplate (Chromium-Plated) Printed Products. Main New Technology: CTP Technology 1. Definition Computer To Plate (CTP, offline direct plate making) Computer To Press (on-press direct plate making) Computer To Paper/Print (direct printing) Computer To Proof (direct digital color proofing) Computer-to-Conventional Plate (direct conventional […]
1. High Speed:Currently capable of reaching 10,000 sheets/hour with continuous feeding. 2. Automation ①Automatic ink volume adjustment ②Automatic ink path cleaning ③Automatic cleaning of blanket, plate, and impression roller ④Automatic mounting and changing of printing plates ⑤Automatic registration system ⑥Dual feeding and dual delivery for continuous material supply 3. Multi-color Printing:Figure 3-27 shows a B+K […]
In actual welding machine operation, different machines may vary slightly, but the basic principles are the same. Therefore, every part of the welding machine must be adjusted according to the operation manual, with particular attention to the following key points: Plate specifications, dimensions, squareness, and burrs must meet requirements, and the magazine should be properly […]
Overview Since 1978, with the development of Super-WIMA resistance welding in the canning industry, the overlap of can body weld seams has been reduced to 0.4–0.6 mm. Lead-free tin-plated resistance-welded cans have been widely used for food and beverage cans. This transition has significantly improved the overall quality of can body weld overlaps. To achieve […]
(1) Development History 1970 – Introduced Early 1980s – 10% UV ink / no UV varnish Early 1990s – Slow development of UV inks; interest in UV varnish increased 1996 – Rapid development of UV inks and varnishes 2000 – UV inks and varnishes widely used in metal printing 2004 – Began to replace traditional […]
Resistance Welding Equipment and Technology for Can Body Production Since the late 1980s, China’s can-making industry has made rapid progress in the production technology and processes of three-piece food cans. The key milestone was the abandonment and elimination of soldered can production technology, which had been used for nearly a century, and the introduction of […]
Visual Quality Inspection Inspect with the naked eye the appearance of the can body, double seam, weld seam, print quality, uniformity of internal and external coatings, the structure of the easy-open end and bottom end, integrity of internal and external coatings, sealant completeness, and check for contamination on the lid surface. Record defect types and […]
Learn proper techniques for applying and drying sealing adhesives on can lids. Includes mixing guidelines, equipment setup tips, and drying requirements for durable seals.
Explore the can lid stamping and forming process, from blanking to beading, and discover how die components shape the final product.
The Automatic Food Can Production Line incorporates several key stages in the manufacturing of three-piece food cans, including shearing, welding, seam filling and drying, necking, flanging, beading, seaming, leak detection, internal coating and drying, and packaging. In China, this automated process is composed of a range of machines, such as a can body combination machine, […]