BRM Metal - Shanghai United Metal materials Co ., Ltd

26/06/2025

MIM Small - Module Gears: Revolutionizing Precision Manufacturing

Unleashing the Power of MIM for Small - Module Gears
Metal Injection Molding (MIM) technology has emerged as a transformative force in the manufacturing of precision small - module gears.. Ideal for gears with intricate shapes and stringent accuracy demands, MIM redefines how these critical components are made. Let’s dive into what makes MIM a standout choice for small - gear production.

1. Conquering Complex Geometries Effortlessly
MIM technology enables the one - step injection molding of gears with complex shapes. Unlike traditional machining, which struggles with elaborate designs and incurs high costs, MIM eliminates the need for tedious post - processing. It turns the once - challenging task of manufacturing complex small gears into a streamlined process, opening doors to innovative gear designs.

2. Micron - Level Precision for Perfect Meshing
The core of manufacturing small gears lies in precision, and MIM excels at delivering this. It can achieve micron - level accuracy, making it perfectly suited for gears where tight tolerances are a must - have. Whether used in delicate instruments or high - speed transmission systems, gears produced via MIM ensure seamless and precise meshing, thereby enhancing the overall performance of the system.

3. Superior Material Performance
MIM empowers the creation of small gears with exceptional mechanical properties. Using materials like stainless steel, alloy steel, and even advanced composites, these gears boast outstanding hardness, wear resistance, and strength. They stand up to prolonged use in harsh environments, from industrial machinery to medical devices, without compromising on durability.

4. Scalable Efficiency for Mass Production
For industries relying on large - scale production of small gears, MIM serves as a powerful tool to enhance productivity. Durable molds and rapid injection - molding cycles enable high - speed, consistent production. This not only slashes manufacturing costs but also ensures a steady supply of high - quality gears, a boon for sectors like automotive and consumer electronics.

5. Widely applicable scenarios
Small - module gears find their way into fields demanding extreme size and precision control—think precision actuators, aerospace avionics, smart home devices, and micro - robotics. MIM meets these industries’ exacting standards, with significant demand in automotive transmissions, medical diagnostics, and wearable tech. Its adaptability makes it a cornerstone in cutting - edge product development.

6. Overcoming Technical Hurdles
While MIM offers immense benefits, it isn’t without challenges. Designing molds for tiny gear modules requires ultra - precise engineering, and sintering demands careful control to avoid deformation, shrinkage, or porosity. However, ongoing technological advancements—like computer - aided mold design and advanced sintering techniques—are steadily overcoming these issues, pushing the boundaries of gear precision and reliability.

The Future of Small - Gear Manufacturing with MIM
In essence, MIM technology provides a robust, cost - effective solution for small - gear production, excelling in both complex geometries and high - strength requirements. As industries like automotive, aerospace, medical, and consumer electronics push for smaller, smarter, and more durable components, MIM’s role in shaping the future of precision manufacturing grows ever more pivotal.

25/06/2025

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Cindy Wang

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20/09/2024

🚀 Improving Gear Strength with Full Finishing Techniques 🚀
Did you know? Powder metallurgy gears can be significantly strengthened with advanced processes like full finishing!

🔧 Full Finishing: With no finishing allowance, this technique focuses on improving physical and mechanical properties. It can boost gear density by up to 20%—making them perfect for high-strength applications. 🛠️

During the shaping process, gears are pressed with upper and lower dies, enhancing density and accuracy. Whether it’s bevel gears or spiral gears, this method ensures durability and stability even in demanding conditions.

Want to know more about how we improve gear quality? Comment below! 👇

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20/09/2024

🛠️ Enhancing Gear Accuracy with Powder Metallurgy 🛠️
In powder metallurgy gear production, achieving high accuracy and strength requires more than just sintering. After sintering, parts undergo finishing, shaping, and re-pressing to improve their performance.

✨ Finishing: Refines dimensional tolerance and surface roughness. By applying plastic deformation at room temperature, it corrects size and deformation issues, ensuring gears meet precise standards.

✨ Shaping: A specific surface shape is formed, enhancing local density. This process is vital for complex parts like bevel gears and end-face spiral gears.

✨ Re-pressing: Increases overall density by 5-12%, ensuring the strength required for heavy-duty applications.

These processes ensure powder metallurgy gears are not only strong but also precise and durable. ⚙️

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13/09/2024

🛠️ Powder Metallurgy Processing for Petroleum Perforation Gun Positioning Plates 🛠️
Production Process Overview:

Mold Design & Raw Materials:

Design: Determine mold specifications and select materials.
Materials: Typically FC0205 copper-carbon steel, known for its enhanced toughness and strength due to its alloy properties.
Mold Manufacturing:

Steps: Fabricate the mold to the required specifications.
Raw Material Mixing:

Powders: Use pre-alloy powders like FN0208 (AB alloy) and FN0408 (AE alloy) for high strength and stable composition.
Mold Installation & Machine Debugging:

Setup: Install the mold and calibrate machines for production.
Pressing & Sintering:

Pressing: Create blank parts on a mesh belt furnace.
Sintering: Heat at around 1100°C for optimal alloy bonding. For high-density results, use warm pressing technology, achieving densities up to 7.2.
Deburring:

Process: Remove any burrs for a smooth finish.
Rust Prevention & Oil Immersion:

Treatment: Apply rust prevention methods and immerse in oil to ensure durability.
Inspection & Packaging:

Quality Control: Inspect parts for compliance and package the qualified products.
Material Insights:

FC0205 Copper-Carbon Steel: Melts at 1085°C, sintered at 1100°C to enhance toughness and strength.
Pre-Alloy Powders: FN0208 and FN0408 are mixed for consistent properties, with AE alloy powder offering higher strength for critical applications.
Design Considerations:

Optimization: Experienced designers focus on structural improvements like chamfering to enhance mold life, reduce costs, and ensure high-quality output without compromising performance.
Sintering Tips:

Temperature & Time: Sintering at 1100°C for positioning plates ensures proper alloy properties. Avoid sintering at lower temperatures or for less than 30 minutes to prevent insufficient strength.
In Summary: The production of positioning plates for perforation guns involves meticulous process control and material selection to ensure high-quality, durable components. Professional expertise in design and sintering is crucial for achieving optimal performance.

13/09/2024

🛠️ Understanding Powder Metallurgy: Process and Considerations 🛠️
Powder Metallurgy Process Overview:

Design: Create product and mold designs.
Mixing: Blend powders.
Pressing: Shape the mixture in molds and adjust as needed.
Sintering: Heat to bond particles.
Machining/Finishing: Refine shapes.
Heat Treatment: Strengthen parts.
Polishing & Oil Immersion: Enhance finish and prevent rust.
Quality Inspection & Packaging: Ensure standards and prepare for shipment.
Important Considerations:

Mold Costs 💸
Molds for powder metallurgy can be expensive, starting from a few thousand to tens of thousands of yuan. For small production runs (a few hundred to a thousand pieces), machining might be more cost-effective due to high mold costs.

Order Volume 📦
Powder metallurgy is best suited for large production volumes, often requiring a minimum of tens of thousands of pieces to justify the mold cost and production efficiency.

Tolerance Levels 📐

Before Finishing: Shape tolerance ~0.0035mm; Height tolerance ~0.15mm.
After Sintering and Re-Pressing: Shape tolerance ~0.0025mm; Height tolerance ~0.1mm.
Limits: Outer diameter ~0.02mm; Inner hole ~0.018mm.
Precision Needs: For very precise machining, consider CNC or powder metallurgy before final machining.
Density & Strength ⚖️
Powder metallurgy parts generally have lower density compared to other materials, which may affect strength. If high density and strength are crucial, powder metallurgy might not be the best choice.

Size Limitations 📏
Large parts are not ideal for powder metallurgy due to limitations in forming presses and injection machines.

In Summary: Powder metallurgy is highly efficient for large-scale production and complex shapes but may not be suitable for small quantities or extremely high-precision parts. For smaller runs or parts requiring very high accuracy, machining might be a better option.

09/09/2024

⚙️ Powder Metallurgy Gears vs. Machined Hobbing Gears: A Quick Comparison ⚙️
Minimal Cutting Required ✂️
Powder metallurgy (PM) gears are molded with little to no cutting needed.

High Material Utilization 🌍
PM gears have a utilization rate of over 95%, reducing waste.

Dimensional Accuracy & Consistency 📏
Achieve stable, high-precision parts with excellent consistency.

Mass Production & Cost Efficiency 💰
Perfect for large-scale production, offering high efficiency and lower costs compared to machined gears.

Complex Shapes 🛠️
PM molding can create intricate designs that traditional hobbing can’t match.

Strength Comparison 💪
With optimized molds, the tensile and compressive strength of PM gears rivals machined gears—used even in automotive gearboxes!

Powder metallurgy gears prove to be practical, universal, and cost-effective for high-strength applications.

09/09/2024

⚙️ What Affects the Hardness and Strength of Powder Metallurgy Gears? ⚙️
The hardness and strength of powder metallurgy (PM) gear parts depend on several key factors:

Density & Porosity:

Higher density = greater hardness & strength. Smaller pores improve overall performance.
Material Composition:

High-quality alloys with strong elements lead to better hardness and durability.
Heat Treatment:

Techniques like carburization quenching, carbon-nitrogen co-infiltration, and high-frequency quenching ensure stable hardness levels for long-lasting strength.
By controlling these factors, PM gears can meet various performance needs! ⚙️💪

30/08/2024

⚙️ Permanent Magnet Motor Configuration in Industrial Fans 🛠️
In the industrial fan market, the configuration of permanent magnet motors is primarily categorized into two types: external rotor and internal rotor permanent magnet motors. Understanding the differences can help in choosing the right motor for long-term reliability and performance.

🔄 External Rotor Permanent Magnet Motors:
Magnet Material: Uses adhesive-type neodymium iron magnets.
Risk: If the adhesive ages and fails, the magnets may detach, causing the motor's stator and rotor to get stuck. This could lead to immediate motor failure, resulting in significant losses for users.
🔄 Internal Rotor Permanent Magnet Motors:
Magnet Material: The neodymium iron magnets are embedded and structurally fixed.
Advantage: No risk of adhesive aging or magnet detachment, leading to a longer warranty period compared to external rotor motors.
In summary, internal rotor motors offer greater durability and reliability, making them a preferred choice for industrial applications where long-term performance is crucial.

30/08/2024

🌬️ Workshop Large Industrial Fans: Ventilation & Cooling in One Powerful Machine 💨
Industrial fans are essential for maintaining comfortable and safe environments in large spaces like factories, warehouses, waiting rooms, exhibition halls, stadiums, and supermarkets. Here's why they are so effective:

🔄 Key Benefits of Industrial Fans:
Enhanced Air Circulation:

Industrial fans move a massive amount of air towards the ground, creating a horizontal airflow layer that spreads across the entire space. This leads to effective air circulation, ensuring that fresh air reaches all corners.
Cooling Effect:

The airflow generated by these fans provides a cooling effect, making the space more comfortable for personnel, especially in hot environments.
Comprehensive Coverage:

The fans offer all-round ground coverage, promoting three-dimensional air circulation, which helps in maintaining consistent air quality throughout large spaces.
Dual Purpose:

Besides cooling, these fans also play a crucial role in ventilating the space, keeping the environment fresh and reducing the buildup of heat and humidity.
In summary, large industrial fans are indispensable in workshops and other vast spaces, offering both cooling and ventilation to enhance comfort and air quality.

23/08/2024

🔥 Sintering Technology in Powder Metallurgy Production ⚙️
Sintering is a fundamental process in powder metallurgy, crucial for determining the physical and mechanical properties of the final parts. Here's a breakdown of this key process:

🌡️ What is Sintering?
Definition: Sintering is a high-temperature heat treatment performed below the melting point of the main component of the material. It transforms mechanical bonding between powder particles into stronger grain boundary bonding between atoms, creating a solid and durable structure.
⚙️ Why is Sintering Essential?
Purpose: While the initial compact of powder metallurgy parts may look like a finished product, it lacks the necessary strength and durability. Sintering is what turns these compacts into fully functional parts by enhancing their mechanical and physical properties.
Example: For iron powder compacts, sintering at 1200°C can increase tensile strength from zero to 200 MPa and elongation from zero to 8%.
🔍 Key Factors in Sintering:
Sintering Furnace & Atmosphere: The choice of furnace and the control of the atmosphere are crucial for a successful sintering process.
Temperature & Time: Precise control of these parameters ensures that the parts achieve the desired properties.
Material Knowledge: Understanding the material’s behavior during sintering is vital for optimizing the process.
Training & Expertise: Operators must be well-trained in sintering principles, process control, and troubleshooting to maintain high product quality and cost efficiency.
Sintering is not just a process—it's the heart of powder metallurgy, where raw materials are transformed into high-performance parts.

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23/08/2024

🛠️ Finishing, Shaping, and Re-pressing in Powder Metallurgy Gear Production ⚙️
To enhance the accuracy and strength of powder metallurgy gears, a second pressing is applied after sintering. This process includes finishing, shaping, and re-pressing—each serving a specific purpose:

✨ Finishing: Precision and Surface Quality
Goal: Achieve the required dimensional tolerance and surface roughness.
Method: Re-pressing the sintered parts at room temperature to create plastic deformation, correcting size and deformation. This improves both dimensional accuracy and surface roughness.
🔧 Shaping: Form and Local Density Improvement
Goal: Attain a specific surface shape and improve local density.
Method: Gears are placed in a female mold and pressurized to change their shape, making this ideal for high-strength gears like bevel and spiral gears.
📏 Re-pressing: Density Enhancement
Goal: Increase overall density by 5% - 12%, meeting strength requirements.
Method: Applied after sintering, this step adjusts the gear's shape and boosts density, making them suitable for demanding applications.
This process is vital in ensuring that powder metallurgy gears meet stringent industry standards. With these techniques, gears can achieve higher accuracy, strength, and overall performance.

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