Stainless Steel: JIS SCS1, SCS2, SCS13, SCS13L, SCS14, SCS14L/ DIN G-X7Cr13, G-X20Cr14, G-X6CrNi18 9, G-X6CrNiMo18 10, 1.3955, 1.4308, 1.4408, 1.4581 / ASTM/AISI CA-15, CA-40, CF-3/304L, CF-3M/316L, CF-8/304, CF-8M/316, etc Carbon Steel: JIS SC450, SCC5 / DIN GS-45, GS-60 / ASTM WCB, 450-240, 80-40, etc Alloy Steel: JIS SCW480, SCSiMn2, SCCrMn3 / DIN GS-20Mn5, GS-37MnSi5, GS-34CrMo4, etc Heat Resistance Steel: JIS SCH13, SCH21, SCH24/ DIN G-X15CrNiSi25 20 1.4840,G-X45CrNiSi35 25 1.4857 / ASTM HN, HK30, HK, HK40, HHM HP, HT Bronze or Copper: JIS BC6, ALBC6, etc Other materials Carbon Steel, Alloy Steel, Hight Manganese Steel, Tool steel, Heat-resistant Steel, Al-Si Alloy, etc also available according to customer’s request.
- Required documents for offer to be provided by customer:
Drawings with formats of IGS (3D), DWG or DXF (Auto CAD 2D), PDF, JPG
Standard of material (Preferable to provide Element Percentage of C, Si, Mn, P, S, etc and Physical/Machanical Properties of the material)
Unit Weight of Rough Casting
Production technology: Lost-wax casting/investment casting
- Main production equipment:
Sand glueing tanks
Intermediate frequency electrical induction furnaces
Shot blast machines
Heat treatment furnaces
Heat treatment water tank
Acid solution and water cleaning tank
Buffing / polishing machines / Electrical polishing
- Unit weight: 1.2g~80,000g per piece
- Other details:
Taper hole, deep hole, bent hole D>Ø2mm L=1D
Minimum outside radius R0.3mm, minimum inside radius R0.5mm
Minimum thickness of 1.5mm, some parts with minimum thickness of 0.8mm
- Tolerance of dimension for cast:
Dimension Range (mm) Common Tolerance Special Tolerance < 25 +/- 0.25 mm +/- 0.13 mm 25 ~ 50 +/- 0.40 mm +/- 0.25 mm 50 ~ 100 +/- 0.80 mm +/- 0.50 mm > 100 +/- 1 % +/- 0.5 %
- Minimum order: No limit
- Delivery: Within 30 working days after signing of contract and confirmation of samples by client
- Technological process:
- Some Products:
- Testing equipments:
- Company information:
Flange Couplings in Corrosive or Harsh Environments
Flange couplings can be used in a wide range of environments, including corrosive or harsh conditions, depending on the material and coating used in their construction. The choice of material is a critical factor in determining the suitability of a flange coupling for such environments.
Stainless steel flange couplings are commonly used in corrosive environments due to their high resistance to rust and corrosion. Stainless steel contains chromium, which forms a protective oxide layer on the surface, preventing the underlying metal from being exposed to corrosive elements.
In particularly aggressive or chemically harsh environments, super alloys or specialty materials like Hastelloy or Inconel may be used for flange couplings, providing even higher corrosion resistance and chemical stability.
In addition to material selection, certain coatings can further enhance the resistance of flange couplings to corrosive environments. For example, coatings like zinc plating or epoxy coatings can add an extra layer of protection against corrosion.
Sealing and Protection:
Flange couplings used in harsh environments may also incorporate specialized sealing elements to prevent the ingress of contaminants, moisture, or corrosive substances. Proper sealing can significantly extend the service life of the coupling and the connected equipment.
While flange couplings designed for harsh environments are built to withstand corrosive elements, regular maintenance is essential to ensure their optimal performance. Regular inspections, cleaning, and lubrication, as well as prompt replacement of any damaged components, are vital to maintaining the integrity and functionality of the coupling.
When using flange couplings in corrosive or harsh environments, it is essential to consider the specific requirements of the application. Factors such as the type and concentration of corrosive substances, temperature variations, and mechanical loads should be carefully assessed to select the most suitable flange coupling for the given environment.
Flange couplings can be engineered to withstand corrosive and harsh environments by using appropriate materials, coatings, and sealing techniques. With proper selection, installation, and maintenance, flange couplings can provide reliable and durable performance in challenging industrial settings.
Flange Couplings and Variable Operating Conditions
Flange couplings are designed to accommodate a wide range of operating conditions and loads, making them versatile and suitable for various applications. The key factors that enable flange couplings to handle variable operating conditions and loads include:
- Flexible Design: Some flange couplings, such as flexible flange couplings or disc couplings, are designed to have some degree of flexibility. This flexibility allows them to compensate for misalignment between shafts, which is often encountered in real-world applications.
- Material Selection: Flange couplings are available in different materials to suit specific operating conditions. For example, stainless steel flange couplings are ideal for corrosive environments, while high-strength steel couplings are suitable for heavy-duty applications.
- Customization: Many flange coupling manufacturers offer customization options to tailor the coupling’s design to meet specific requirements. This may include modifying the coupling’s size, material, or torque capacity.
- Load Distribution: Flange couplings are designed to distribute loads evenly between the connected shafts. This even distribution of load helps prevent premature wear and reduces stress on the shafts and other connected equipment.
- High Torque Capacity: Flange couplings are available in various designs, including those suitable for high torque applications. This allows them to handle varying levels of torque without compromising performance.
- Temperature and Environmental Resistance: Flange couplings made from appropriate materials can withstand a wide range of temperatures and environmental conditions, making them suitable for both indoor and outdoor applications.
It is essential to consider the specific requirements of your application and the potential variations in operating conditions and loads when selecting a flange coupling. This ensures that the chosen coupling can reliably and efficiently transmit power while accommodating any changes in the operating environment.
What is a flange coupling and how does it work?
A flange coupling is a type of rigid coupling used to connect two shafts together in a mechanical system. It consists of two flanges, one on each shaft, which are bolted together to form a solid and robust connection. Flange couplings are widely used in applications where precise alignment, high torque transmission, and zero backlash are critical.
The key components of a flange coupling include:
- Flanges: The flanges are circular discs with holes around the perimeter for bolting them to the respective shaft ends. The flanges are made from materials such as steel, cast iron, or aluminum, depending on the application requirements.
- Fasteners: High-strength bolts or studs with nuts are used to fasten the flanges together securely. The number and size of the bolts depend on the size and torque capacity of the coupling.
- Gaskets: In some cases, gaskets or spacers are used between the flanges to provide insulation, prevent corrosion, or compensate for any slight misalignments between the shafts.
How a flange coupling works:
- The two shafts that need to be connected are brought together with their respective flanges facing each other.
- The flanges are aligned precisely to ensure that both shafts are in perfect axial alignment. Proper alignment is essential to prevent excessive loads on the bearings and to ensure efficient torque transmission.
- Once the flanges are aligned, high-strength bolts or studs are inserted through the holes in the flanges, and nuts are fastened tightly to hold the flanges together securely.
- The tight connection between the flanges creates a rigid joint between the shafts, allowing torque to be transmitted from one shaft to the other with minimal losses.
- Flange couplings are designed to have zero backlash, meaning there is no play or free movement between the shafts when the direction of rotation changes. This feature ensures precise and immediate power transmission between the connected shafts.
Flange couplings are commonly used in various industrial applications, including heavy machinery, pumps, compressors, and marine propulsion systems. They are preferred when a reliable, high-torque transmission with precise alignment is required. However, they do not offer flexibility to accommodate misalignment, which is a limitation compared to flexible couplings. Therefore, proper alignment during installation is critical to avoid premature wear and failure of the coupling and connected equipment.
editor by CX 2023-08-18