Product Description
Product description
| Specification | Precision casting,Lost wax casting, Investment casting |
| Material | Stainless steel,Steel,Brass,Copper,Aluminum,Iron |
| Machining | CNC machining center, CNC lathe |
| Casting tolerance | IT5 – IT7,CT5-7 |
| Machining tolerance | +/- 0.005mm,ISO2768-f,ISO-mk |
| Heat treatment | Solid solution annealed,quench and tempering |
| Weight range | 0.1Kg-120Kg |
| Dimensions | ≤1200mm×800mm×400mm |
| Surface finishment | Ra1.6-Ra3.2 |
| Finish | Polishing,Shoot blasting,Glass bead sand blasting,etc. |
The Investment Casting Process:
Precision casting products:
Our advantage:
* One-Sotp service(from design to mass production)
* OEM /ODM Customized services
* Rapid prototyping & low-volume production
* High quality & low prices
* Highly skilled manufacturing process.
* Strict quality Control System.
Our promise:
* The delivery time and the package can be controled according to the customers’ requirement completely.
* we will produce the products seriously according to the drawings, and make sure all the products is suitable for the custoners.
* We will communicate with the customers all the time about the products, we will send the pictures to the customers, so that they can know the Processing process
Our Policy:
Innovation and developing in Technique
High level of expertise
Outstanding quality
On-time delivery to customer needs
SERVICE:
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| Casting Method: | Thermal Gravity Casting |
|---|---|
| Process: | Precision Casting |
| Molding Technics: | Pressure Casting |
| Application: | Agricultural Machinery Parts |
| Material: | Metal |
| Surface Preparation: | Polishing |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What are the benefits of using plastic gears over traditional materials?
Using plastic gears instead of traditional materials offers several benefits. Here’s a detailed explanation of the advantages of using plastic gears:
- Weight Reduction: Plastic gears are significantly lighter in weight compared to gears made from traditional materials such as metal. This lightweight characteristic is advantageous in applications where weight reduction is important, as it can contribute to energy efficiency, lower inertia, and reduced wear on supporting components.
- Noise and Vibration Reduction: Plastic gears have inherent damping properties that help reduce noise and vibration levels during operation. This makes them suitable for applications where noise reduction is desired, such as in consumer electronics or office equipment. Metal gears, on the other hand, tend to generate more noise and vibration due to their higher stiffness.
- Self-Lubrication: Certain plastic materials used in gears have inherent lubricating properties, allowing for self-lubrication between gear teeth. This reduces friction and wear, eliminating the need for external lubrication and simplifying maintenance requirements. Metal gears, on the other hand, typically require lubrication to reduce friction and wear.
- Corrosion Resistance: Plastic gears can exhibit excellent resistance to corrosion and chemicals, depending on the chosen plastic material. This makes them suitable for applications in corrosive environments where metal gears may suffer from degradation or require additional protective measures.
- Design Flexibility: Plastic gears offer greater design flexibility compared to metal gears. Plastic materials can be easily molded into complex shapes, allowing for the creation of custom gear profiles and tooth geometries. This design flexibility enables gear optimization for specific applications, improving performance, efficiency, and overall machinery design.
- Cost-Effectiveness: Plastic gears are often more cost-effective compared to gears made from traditional materials. Plastic materials are generally less expensive than metals, and the manufacturing processes for plastic gears, such as injection molding, can be more efficient and economical for large-scale production.
- Electrical Insulation: Plastic gears offer electrical insulation properties, which can be advantageous in applications where electrical isolation is required. Metal gears, on the other hand, can conduct electricity and may require additional insulation measures in certain situations.
- Customization and Color Options: Plastic gears can be easily customized in terms of shape, size, color, and surface finish. This allows for branding, aesthetic preferences, or specific identification requirements in various applications. Metal gears, on the other hand, have more limited options for customization.
These benefits make plastic gears attractive alternatives to traditional materials in many applications. However, it’s important to consider the specific requirements and operating conditions of the application when selecting the appropriate gear material.
What is the impact of temperature variations on plastic gears?
Temperature variations can have a significant impact on plastic gears. Here’s a detailed explanation of their effects:
1. Thermal Expansion: Plastic gears can experience thermal expansion or contraction with changes in temperature. Different types of plastics have varying coefficients of thermal expansion, meaning they expand or contract at different rates. This can result in dimensional changes, which may affect the gear’s meshing, clearance, and overall performance. It’s important to consider the thermal expansion characteristics of the specific plastic material used in the gear design.
2. Material Softening or Hardening: Plastic materials can exhibit changes in mechanical properties with temperature variations. In general, as temperature increases, plastic materials tend to soften and become more flexible, while at lower temperatures, they can become stiffer and more brittle. These changes can impact the gear’s load-bearing capacity, wear resistance, and overall durability. It’s crucial to select plastic materials that can maintain their mechanical integrity within the expected temperature range of the application.
3. Dimensional Stability: Plastic gears may experience dimensional changes or warping due to temperature fluctuations. Higher temperatures can cause plastic materials to deform, leading to misalignment, increased backlash, or reduced gear accuracy. Conversely, lower temperatures can cause contraction, resulting in tight clearances, increased friction, or gear binding. Proper design considerations, including material selection and gear geometry, can help mitigate the impact of temperature-induced dimensional changes.
4. Lubrication and Wear: Temperature variations can affect the lubrication properties of plastic gears. Higher temperatures can cause lubricants to degrade or become less effective, leading to increased friction, wear, and potential gear failure. Similarly, low temperatures can cause lubricants to thicken or solidify, hindering proper lubrication and increasing wear. Selecting lubricants suitable for the anticipated temperature range and periodic maintenance can help ensure proper lubrication and minimize wear on plastic gears.
5. Cold Flow and Creep: Some plastic materials, especially those with lower glass transition temperatures, may exhibit cold flow or creep at elevated temperatures. Cold flow refers to the gradual deformation or flow of plastic material under constant stress, while creep refers to the time-dependent deformation under a constant load. These phenomena can cause changes in gear geometry, tooth profile, or tooth engagement over time, potentially affecting gear performance and functionality. Understanding the material’s creep and cold flow characteristics is important when selecting plastic gears for applications exposed to temperature variations.
6. Impact on Lubricants and Seals: Temperature variations can also impact the performance of lubricants and seals used in gear systems. Extreme temperatures can cause lubricants to break down, lose viscosity, or leak from the gear assembly. Seals and gaskets may also be affected, leading to compromised gear housing integrity or increased friction. It’s crucial to consider temperature compatibility and select appropriate lubricants and seals that can withstand the anticipated temperature range.
In summary, temperature variations can significantly impact plastic gears by causing thermal expansion, material softening or hardening, dimensional changes, lubrication issues, cold flow or creep, and effects on lubricants and seals. Proper material selection, design considerations, and understanding the anticipated temperature range are essential to ensure the reliable and optimal performance of plastic gears in various applications.
Can plastic gears replace metal gears in certain applications?
Yes, plastic gears can replace metal gears in certain applications. Here’s a detailed explanation:
Plastic gears offer a range of advantages that make them suitable alternatives to metal gears in specific scenarios. Some of the factors that determine whether plastic gears can replace metal gears include the application requirements, operating conditions, load capacity, and desired performance characteristics.
Advantages of Plastic Gears:
- Lightweight: Plastic gears are significantly lighter than metal gears, making them suitable for applications where weight reduction is important. This can lead to energy efficiency, reduced inertia, and lower wear on supporting components.
- Low Noise and Vibration: Plastic gears have inherent damping properties that help reduce noise and vibration levels during operation. This makes them suitable for applications where noise reduction is desired, such as in consumer electronics or office equipment.
- Corrosion Resistance: Certain plastic materials used in gear manufacturing exhibit excellent resistance to corrosion and chemicals. Plastic gears can be a suitable choice for applications in corrosive environments where metal gears may suffer from degradation.
- Self-Lubrication: Some plastic materials used for gear manufacturing have self-lubricating properties. This reduces friction and wear between gear teeth, eliminating the need for external lubrication and simplifying maintenance requirements.
- Cost-Effective: Plastic gears can be more cost-effective compared to metal gears, especially in large-scale production. Plastic materials are often less expensive than metals, and the manufacturing processes for plastic gears can be more efficient.
- Design Flexibility: Plastic gears offer greater design flexibility compared to metal gears. They can be molded into complex shapes, allowing for custom gear profiles and tooth geometries, resulting in optimized performance and efficiency for specific applications.
Limitations of Plastic Gears:
- High Torque and Load Capacity: Plastic gears may not have the same torque and load capacity as metal gears. In applications requiring high torque or heavy loads, metal gears may be more suitable due to their higher strength and durability.
- High Temperatures: Plastic gears have temperature limitations depending on the chosen material. In applications with high operating temperatures, metal gears that can withstand the heat may be necessary.
- Precision and Positioning: Plastic gears may not offer the same level of precision and positioning accuracy as metal gears. Applications that require tight tolerances and precise gear meshing may still require metal gears.
In summary, plastic gears can replace metal gears in certain applications where their advantages align with the specific requirements and operating conditions. It’s crucial to carefully evaluate the application needs, load capacity, temperature range, and other factors to determine if plastic gears are suitable replacements for metal gears.
editor by CX 2023-12-29