Grain refinement of metals is one of the important means to improve the performance of metallic materials. By refining grains, the strength, hardness, plasticity and toughness of metals can be significantly enhanced, their comprehensive mechanical properties can be improved, processing performance can be optimized, and even positive impacts can be made on the corrosion resistance and thermal stability of materials. This article will introduce in detail several main methods of grain refinement of metals and their principles.

The working principle of a gear pump is that it is a rotary pump that conveys liquids or increases their pressure by the change in the working volume formed between the pump cylinder and the meshing gears. Its working principle is as follows: Suction process: When the driving gear of the gear pump rotates, it drives the driven gear to rotate together. On the suction side, the gears gradually disengage from meshing, the sealed volume increases, and a local vacuum is formed. Under the action of external atmospheric pressure or gravity, the liquid enters the tooth grooves through the pump inlet. Conveying process: As the gears rotate, the liquid in the suction teeth is carried to the other side and enters the discharge chamber. Discharge process: On the discharge side, the gears engage, the sealed volume gradually decreases, and the liquid is squeezed and discharged from the pump outlet. Sealing and isolation: The meshing line of the gears separates the suction chamber from the discharge chamber, preventing liquid backflow and maintaining the pressure difference.

The production and quality control of gears used in forged gear pumps is a complex and meticulous process, involving multiple stages and strict standards. The following is a detailed elaboration of this process:

CNC machining plays a pivotal role in crafting high-quality transmission shafts by delivering precision, consistency, and efficiency. These components, essential for transferring power in machinery, demand tight tolerances and flawless finishes to ensure durability and performance. CNC machining achieves this through advanced automation, minimizing human error and enabling complex geometries. At VIGOR INNO-TECH Limited, with over 18 years of expertise in castings and forgings, we understand the critical nature of transmission shafts. Our team leverages CNC technology to analyze structures, design processes, and control risks, ensuring optimal quality and efficiency. This approach guarantees that every transmission shaft meets global standards for hot working processes, enhancing reliability across industries.

Transmission shafts play a pivotal role in transferring power efficiently within machinery. Choosing the right bar material ensures durability, strength, and performance under demanding conditions. The best high-quality bar materials for transmission shafts include alloy steels like 4340 and 4140, known for their exceptional toughness and fatigue resistance. Stainless steel, such as 17-4 PH, offers corrosion resistance for harsh environments. Additionally, carbon steels like 1045 provide a cost-effective option for less demanding applications. Selecting the ideal material depends on load requirements, environmental factors, and budget constraints. At VIGOR INNO-TECH Limited, we specialize in guiding customers to the optimal material choice for their specific needs.

Design for Manufacturability (DFM) principles streamline the production of motor shafts by emphasizing efficiency and quality from the design stage. By aligning design choices with manufacturing capabilities, DFM reduces material waste, minimizes production errors, and enhances cost-effectiveness. For motor shafts, this means selecting appropriate materials, simplifying geometries, and ensuring compatibility with forging or casting processes. Such an approach mitigates risks like defects or misalignment, which can compromise performance. VIGOR INNO-TECH Limited, with over 18 years of expertise in castings and forgings, excels in applying DFM to deliver robust, customized motor shaft solutions that balance quality, economy, and production efficiency for global specialists in hot working processes.

Universal joint (abbreviated as UJ) is a kind of mechanical transmission component, Vigor produce the die-forged high strength universal joints that widely used in automobiles, construction machinery and other equipment that need to transfer rotational motion and torque. Its function is to connect two shafts and allow them to maintain power transmission even when the angle changes.

Solidification principle: Casting is an important metal forming process, and its core principle lies in the utilization of the property of metals melting into liquid at high temperatures and solidifying back into solid state during the cooling process. Specifically, in the casting process, the raw materials of metals or alloys are first heated above their melting points to completely melt into liquid metals with certain chemical compositions and appropriate temperatures. Then, under the drive of gravity or external pressure, the liquid metal is smoothly poured into the pre-prepared mold cavity. As the temperature gradually decreases, the liquid metal begins to solidify and eventually forms a casting of the desired shape and size within the mold cavity. This process not only involves the physical state change of metals but also accompanies complex chemical and metallurgical reactions.