Manufacturing Process of Closed Die Forging Trencher Tooth

The first step in producing high-performance shovel teeth is to select the right raw materials. Ningbo Hansheng Machinery Parts Co., Ltd. offers a variety of material options for its Closed Die Forging Trencher Tooth, including carbon steel, stainless steel, alloy steel, duplex steel, etc. These materials not only have excellent mechanical properties, but also provide sufficient wear resistance and corrosion resistance in harsh working environments. Carbon steel is often used in medium-load applications, providing good hardness and toughness; stainless steel performs well in humid or chemically corrosive environments and has strong corrosion resistance; while alloy steel and duplex steel are suitable for more demanding high-strength and high-wear resistance requirements, providing additional strength, fatigue resistance and high temperature resistance.
The use of closed-die forging process is the core of Ningbo Hansheng Machinery Parts Co., Ltd.'s production of this shovel tooth. Closed-die forging technology heats the metal material to a high temperature and then applies pressure in a specific die to cause the metal material to undergo plastic deformation to obtain the desired shape and size. In this process, the metal's grain structure is optimized, ensuring the uniformity and density of the material, and significantly improving the tensile strength, impact resistance and wear resistance of the shovel teeth. Compared with traditional casting processes, forged teeth have better mechanical properties, especially in environments with high impact and high friction, and are more stable and durable.
After closed die forging, the teeth will undergo a series of heat treatment processes to further improve their hardness and wear resistance. During the heat treatment process, the teeth will be heated to a specific temperature and maintained for a certain period of time, and then quickly cooled (quenched). Through this process, the internal structure of the teeth will be adjusted to have higher hardness, strength and wear resistance. In some cases, the teeth will also be tempered to reduce the brittleness that may be generated after heat treatment and increase its toughness. In addition, the teeth will undergo fine machining after heat treatment, including grinding, cutting and fine polishing, to ensure that the dimensional accuracy, shape and surface finish of each tooth meet the design requirements.
In order to further improve the service life and performance of the teeth, the surface treatment process is crucial. Ningbo Hansheng Machinery Parts Co., Ltd. provides a variety of surface treatment options for teeth, such as galvanizing, anodizing, hard anodizing, electroplating chrome, electroplating nickel plating (ENP), etc. The galvanizing process can effectively prevent the rusting of the shovel teeth in wet or corrosive environments; anodizing and hard anodizing not only increase the hardness of the shovel tooth surface, but also improve the corrosion resistance, which is especially suitable for use in extreme conditions, such as high temperature or chemical corrosion environments; electroplating chrome and electroplated nickel plating (ENP) can form a solid protective layer on the surface of the shovel teeth, enhancing wear resistance and oxidation resistance. In addition, powder coating and painting are also often used to enhance the appearance of the shovel teeth and provide additional protection, reducing the wear of the shovel tooth surface by the external environment.
At the same time, to ensure that each shovel tooth can meet strict quality standards, Ningbo Hansheng Machinery Parts Co., Ltd. implements a number of quality control measures throughout the production process. All shovel teeth undergo material composition analysis, dimensional accuracy inspection, hardness testing, and surface quality inspection. In addition, the company also uses advanced testing equipment, such as three-coordinate measuring machines, to conduct comprehensive inspections on the geometry and dimensional accuracy of the shovel teeth. All qualified shovel teeth will be subjected to performance tests before leaving the factory to ensure that they meet or exceed the customer's requirements.