Thread Content
The support frame for chain plate conveyors serves primarily to provide a running track for the conveyor roller chain, as well as to offer a solid supporting structure for the fixed chain plates. There are three types of support frame designs for chain plate conveyors: (1) The support frame of the chain plate conveyor uses rails as the guiding tracks for both forward and return movement ; (2) The support framework for the chain plate conveyor is a combination of Type A and Type B; the carrying track is made of steel rails, while the return track is made of negative steel. (3) The support frame for chain plate conveyors provides a path for the carrying chain as well as the return chain; this path is made of steel, and it is usually fitted with wear-resistant steel rods ; The various types of structures mentioned above generally consist of a steel frame with tracks, along with tie rods and angle iron crossbeams. For long-distance transportation, truss support is required. When selecting the thickness of the chain plates for chain conveyor systems, several factors need to be taken into account: each chain plate must be able to bear the total weight of the material being transported, and its deflection must be kept to a minimum in order to prevent bending at the joints between the chain plates ; The impact of the falling bulk material during loading can cause deformation of the chain plates ; Abrasiveness of the material being conveyed ; Corrosivity and chemical resistance ; Expected service life ; Constraints due to economic costs (construction expenses). If the material being transported is corrosive or capable of undergoing chemical reactions, a protective coating can be applied to the surface of the metal chain plates. If the material to be transported is sensitive to contamination by the metal chain plates, then chain plates made of metal alloys can be used. The raw material for stainless steel chain plates is 304, a general-purpose stainless steel that is widely used in manufacturing equipment and components that require excellent overall properties (corrosion resistance and formability). 304L is a variant of 304 stainless steel with a lower alloy content, used in applications that require welding. The lower carbon content minimizes the formation of carbides in the heat-affected zone near the weld, and the formation of carbides can lead to intergranular corrosion (weld corrosion) in stainless steel under certain conditions. The various raw materials for carbon steel chain plates, as well as 316 and 317 stainless steels, contain aluminum; therefore, their resistance to pitting corrosion in marine and chemical industry environments is significantly better than that of 304 stainless steel. Among them, type 316 stainless steel has variants including low-carbon stainless steel 316L, high-strength nitrogen-containing stainless steel 316N, and easily machinable stainless steel 316F with a higher sulfur content. The various raw materials for carbon steel chain plates include 904L (00Cr20Ni25Mo4.5Cu), which is a low-carbon, high-nickel, molybdenum-containing austenitic stainless acid-resistant steel. It possesses excellent activation–passivation capability, as well as very good corrosion resistance. It shows good resistance to non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, and phosphoric acid, and it has excellent pitting resistance in neutral chloride-containing media. Additionally, it offers outstanding resistance to crevice corrosion and stress corrosion. It is suitable for sulfuric acids of various concentrations at temperatures below 70°C, and it also exhibits excellent corrosion resistance in acetic acid and formic acid of any concentration and at any temperature, as well as in mixtures of acetic acid and formic acid, under normal pressure. We know that to make better use of carbon steel chain plates, it is necessary to have a thorough understanding of the relevant knowledge. When cleaning carbon steel chain plates, it is quite simple: either rinsing them with water or soaking them in water will suffice, and both methods meet the hygiene standards required by the food and beverage industry. Carbon steel chain plate conveyors feature a smooth and flat conveying surface, resulting in low friction; this enables smooth transportation of materials along the production line. They are particularly convenient for transporting various types of glass bottles, PET bottles, and aluminum cans, as well as various kinds of boxes and bags. Carbon steel chain plates can achieve horizontal, inclined, and curved conveying in one go; the equipment layout is flexible and convenient. The carbon steel chain plate structure is simple, operation is stable, and maintenance is easy. As those who use chain plate conveyors are likely already aware, carbon steel chain plate conveyors, which are widely used today, possess the advantage of withstanding high temperatures; they are more widely applied than belt conveyors and have a longer service life. Generally, the raw materials used for carbon steel chain plates include a wide range of standard materials such as stainless steel, carbon steel, and engineering plastics. These can be selected based on the materials to be transported and the requirements of the manufacturing process, thereby meeting the needs of various users in different industries.