News | Magnetic Drive Pumps,Fluorine Lined Centrifugal Pump

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Semiconductor Industry | Delivery of High-Purity Chemical Reagents

February 06, 2025

Semiconductor Manufacturing In semiconductor manufacturing, even extremely minute amounts of metal ions, particulate impurities, or organic contaminants can lead to catastrophic consequences. These impurities may alter the electron transport paths inside the chip, increase resistance, cause severe heating of the chip, and degrade its performance. Impurities may also trigger issues such as short circuits, preventing the chip from functioning properly. Relevant studies have shown that during the chip manufacturing process, the loss of yield due to the purity of chemical reagents can reach 20%- 30%. This is undoubtedly a huge challenge for the semiconductor industry, which pursues high precision and high yield. The Key Role of Magnetic Pumps Throughout the entire semiconductor manufacturing process, magnetic pumps ensure the continuity of chemical reagent delivery. They work continuously and stably, enabling the timely supply of chemical reagents required for different stages and avoiding production stoppages caused by interruptions in reagent supply. Take the thin film deposition stage as an example. Specific gases and liquid chemical reagents need to be continuously supplied to the reaction chamber. The stable operation of the chemical pump ensures the continuity of the deposition process, allowing the film to grow uniformly and guaranteeing the electrical performance and reliability of the chip. As a highly favored type of chemical pump in the semiconductor industry, the most notable feature of magnetic pumps is their unique design without mechanical seals. They use magnetic couplings to transmit power. The pump shaft and motor shaft interact through magnetic force, eliminating the need for traditional mechanical seal devices. This fully sealed design is like putting on a solid "protective armor" for the chemical reagents, fundamentally eliminating the possibility of medium leakage. In the semiconductor manufacturing process, even the tiniest leakage can cause serious pollution problems, and the emergence of magnetic pumps perfectly solves this hidden danger. During the delivery of photoresist, magnetic pumps can ensure the stable flow of photoresist within closed pipes without any leakage, thus guaranteeing the high purity of the photoresist. In the delivery of high-purity electronic grade hydrofluoric acid, the fully sealed characteristic of magnetic pumps effectively prevents the contact between hydrofluoric acid and the external air, preventing the volatilization of hydrofluoric acid due to leakage and the resulting harm to the environment and personnel. At the same time, it also ensures that the purity of hydrofluoric acid is not affected, providing a reliable guarantee for the subsequent etching process. Selection Points 1.When selecting a chemical pump for delivering high-purity chemical reagents in the semiconductor industry, many key factors need to be carefully considered. Flow rate is one of the primary factors. Th...

Chemical Pump Selection, Installation and Maintenance

January 21, 2025

Chemical pumps, as key equipment for material conveying in chemical production, operate based on different physical mechanisms. Among them, the most common type is the centrifugal pump, which relies on centrifugal force to transport materials. 1. Selection: Choosing the Right "Capable Assistant" Selection is the crucial first step to ensure the efficient operation of chemical pumps. When selecting a pump, multiple factors need to be considered comprehensively. Medium Characteristics: Different chemical media have distinct properties such as corrosiveness, viscosity, and density. For highly corrosive media like sulfuric acid and hydrochloric acid, pumps made of corrosion-resistant materials, such as fluorine-lined pumps and stainless steel pumps, should be chosen. For high-viscosity media, positive displacement pumps like screw pumps and rotary pumps may be more suitable. Flow Rate and Head: These are also important considerations. The required flow rate and head should be accurately calculated according to actual production needs to ensure that the pump's performance meets the production requirements. Other Parameters and Conditions: In addition, parameters such as the pump's working pressure, temperature, and cavitation allowance, as well as the installation environment and operating conditions, need to be taken into account. During the selection process, product samples and technical parameters provided by manufacturers can be referred to. Analysis and comparison should be carried out in combination with actual working conditions. If necessary, professional advice should be sought to ensure the selection of the most appropriate pump type. 2. Installation: Laying a "Solid Foundation" Proper installation is the foundation for the stable operation of chemical pumps. Pre-installation Inspection: Before installation, a comprehensive inspection of the pump and motor should be carried out to ensure that all parts are intact without any looseness or deformation. Ensuring Levelness and Concentricity: During installation, the levelness and concentricity of the pump must be ensured, as they directly affect the running stability and service life of the pump. Tools such as spirit levels can be used to adjust the pump base so that the longitudinal and transverse levelness deviations are within the specified range. At the same time, the concentricity of the pump and motor should be ensured by adjusting the clearance and position of the coupling to align the centerlines of the two shafts, reducing vibration and noise caused by misalignment. Pay Attention to Piping Connection: During the installation process, attention should also be paid to the connection of pipelines to ensure that there are no leaks and that no additional stress is applied to the pump body. Trial Operation: After installation, a trial run should be carried out to check the running condition of the pump and promptly identify and solve any problems. 3. Mainte...

Working principle of chemical centrifugal pump

January 13, 2025

The working principle of a chemical centrifugal pump involves the conversion of mechanical energy into kinetic energy to move fluids. Here's a brief overview: 1. Impeller Rotation: The pump's impeller, driven by a motor, rotates at high speed. As it spins, it imparts kinetic energy to the fluid. 2. Centrifugal Force: The rotation creates centrifugal force, which pushes the fluid outward from the center of the impeller to the edges. 3. Fluid Movement: The fluid is then directed into the pump's volute casing, where its velocity decreases, and its pressure increases. 4. Discharge: The high-pressure fluid is discharged through the pump's outlet, allowing it to be transported through the piping system. 5. Suction: As the fluid is discharged, a low-pressure area is created at the impeller's center, drawing more fluid into the pump through the inlet. This continuous process enables the efficient movement of fluids, making centrifugal pumps essential in various chemical processing applications.

Working principle of axial flow pump

January 17, 2025

The working principle of an axial flow pump involves the movement of fluid parallel to the pump shaft, utilizing propeller-like blades to generate flow. Here's a brief overview: 1. Propeller Rotation: The pump's propeller, driven by a motor, rotates within the pump casing. As it spins, the blades impart kinetic energy to the fluid. 2. Axial Flow: Unlike centrifugal pumps, axial flow pumps move fluid parallel to the shaft. The rotating blades push the fluid in a straight line along the axis of the pump. 3. Fluid Acceleration: The blades accelerate the fluid, increasing its velocity and creating a flow that moves directly through the pump. 4. Pressure Increase: While the primary function is to move large volumes of fluid, the design also generates a moderate increase in pressure as the fluid passes through the blades. 5. Discharge: The fluid exits the pump through the discharge outlet, continuing its path through the piping system. Axial flow pumps are particularly effective for applications requiring high flow rates with relatively low pressure, such as in irrigation, flood control, and large-scale water circulation systems.

Chemical Pump Application

January 10, 2025

Chemical Pump Application Chemical pumps are essential components in numerous industrial processes where the transfer of chemicals is required. These specialized pumps are designed to handle a wide range of chemicals, including acids, bases, and other corrosive or toxic substances, ensuring safety, reliability, and efficiency. In the pharmaceutical industry, chemical pumps are used to transport chemicals during the manufacturing of medications. Their precision and accuracy are vital to maintain the integrity of the substances being processed. In the agriculture sector, chemical pumps are employed for the distribution of fertilizers and pesticides, enabling farmers to apply these substances evenly and efficiently, thereby enhancing crop yield. Chemical plants rely heavily on these pumps for the transfer of various chemicals within the facility, ensuring a continuous flow for production processes. They are also indispensable in waste treatment facilities, where they help manage and transport hazardous waste materials. Moreover, chemical pumps are used in the oil and gas industry for the transfer of sour gas and other corrosive fluids. Their robust construction and specialized materials make them suitable for extreme conditions found in oil refineries and offshore platforms. In conclusion, chemical pumps are indispensable tools in modern industries, providing reliable solutions for the safe and efficient transfer of chemicals. Their application spans across multiple sectors, contributing to the smooth operation of critical processes.

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