The main process of food three-piece can production includes shearing, welding, weld seam patching, drying, necking, flanging, beading, sealing, leak detection, coating, and drying, and packaging. Today, we will focus on the coating process: Coating Process Coating is the process of spraying a thin layer of paint on the inner wall of the empty can […]
Although metal cans have been around for nearly 200 years, they remain the most economical, environmentally friendly, and safe packaging option available today. Double seam plays a decisive role in ensuring the sealing of metal cans. Both canning and quality control personnel must undergo rigorous training to ensure the sealing quality of cans. This article […]
(1) Roller Coating Equipment: Inner coating device for weld seams, with a coating box mounted on a coating arm connected to the welding arm. When the tank body is transported to the coating wheel after welding, the coating of the weld seam is performed. This method involves applying liquid coating to the weld seam on […]
In the actual operation of welding machines, although different welding machines may have slight variations, the basic principles are the same. Therefore, it is crucial to adjust each part of the welding machine according to the welding machine manual, with special attention to the following key points: (1) Sheet Metal Specifications and Dimensions, Right Angles, […]
Tinplate printing commonly adopts a continuous heating and drying method, with printing drying ovens typically spanning 24 to 27 meters, and coating solvent content being higher, the drying ovens are generally around 30 meters. These ovens consist mainly of the furnace body, transmission mechanism, heating device, and a heat circulation system. Furnace Body The furnace […]
Tinplate coating equipment is mainly used for internal and external coating and, at times, can be directly attached behind a printing machine for immediate curing. Main Structure of Coating Equipment Adjustment of coating machine 1. Conveying Section: Refer to the adjustment of the printing machine conveying section. 2. Setting Rubber Roller and Coating Roller (Using […]
Tinplate coatings are broadly classified into internal coatings, external primers (base oil coatings), undercoats (white rubber coatings), and topcoats. Internal Coating: (1) Primary Purpose: Prevents the corrosion of the can wall and contamination of the contents, ensuring prolonged storage. (2) Key Characteristics: Corrosion resistance, excellent adhesion, flexibility, non-toxic, and odorless, meeting food safety standards. Must […]
Aluminum cans, also known as two-piece cans, consist of a can body and a can lid, both manufactured on different production lines using various aluminum alloys. In practice, the can lid is composed of two components: the lid body and the pull-tab, both produced with different alloys and thicknesses of aluminum strips on highly automated […]
Currently, the main types of coatings used for canned goods include epoxy phenolic coatings, epoxy amine coatings, organic solvent coatings, ethylene-based coatings, polyester coatings, acrylic coatings, and epoxy ester coatings. Below is a brief introduction to the characteristics of various resins and the performance and applications of coatings made from them. Epoxy Ester Coatings Epoxy […]
Currently, the main types of coatings used for canned goods include epoxy phenolic coatings, epoxy amine coatings, organic solvent coatings, ethylene-based coatings, polyester coatings, acrylic coatings, and epoxy ester coatings. The characteristics of various resins, as well as the performance and applications of coatings produced from them, are briefly outlined below. Epoxy Amine Coatings: Epoxy […]