Description

Rubber Seals between EDM & Tray

Rubber Seals Between EDM and Tray: Essential for Precision and Durability

Rubber seals between EDM (Electrical Discharge Machining) and trays are vital components in various manufacturing and processing environments where EDM technology is used. These seals play a crucial role in ensuring precision, protection, and efficiency during the EDM process. Whether in aerospace, automotive, medical, or precision engineering industries, rubber seals help maintain the integrity of the machining process, improve safety, and extend the lifespan of equipment.

What Are Rubber Seals Between EDM and Tray?

Rubber seals between EDM machines and trays are specially designed gaskets or sealing rings made from durable, high-performance rubber materials. They are used to create a tight, leak-proof barrier between the EDM machine's internal components (such as electrical and coolant systems) and the tray that holds the workpiece. These seals help contain fluids, prevent contamination, and maintain optimal operating conditions within the EDM setup.

Key Functions of Rubber Seals in EDM Systems

Prevention of Fluid Leakage One of the main functions of rubber seals in EDM systems is to prevent the leakage of dielectric fluids used in Electrical Discharge Machining. These fluids are essential for cooling the electrode, flushing debris, and maintaining the accuracy of the machining process. A secure seal between the tray and the EDM unit ensures that these fluids remain contained within the system, preventing leaks that could disrupt the operation or cause safety hazards.
Protection Against Contamination Rubber seals act as a barrier to prevent foreign particles, dust, and contaminants from entering the EDM system, which could negatively impact the precision of the machining process. Contaminants can affect the quality of the cut, cause wear to the electrodes, or damage sensitive components within the machine. The rubber seal keeps the workspace clean and free of unwanted debris, ensuring high-quality results and reducing the risk of malfunctions.
Maintaining Optimal Pressure and Flow In EDM processes, it's essential to maintain precise control over fluid pressure and flow. Rubber seals ensure that there is no loss of pressure within the system, which could otherwise affect the machining quality. These seals help to optimize the flow of dielectric fluid to the cutting area, ensuring that the electrical discharge occurs correctly and that the cutting zone remains cooled and free of debris.
Shock Absorption and Vibration Dampening In an EDM setup, various components—including the electrode, tray, and machine housing—are subject to vibrations due to the machining process. Rubber seals provide an extra layer of shock absorption, reducing the effects of vibrations and ensuring that the machine operates smoothly and precisely. This helps minimize wear and tear on components and extends the life of the equipment.
Temperature Resistance EDM processes generate substantial heat, particularly around the electrode and workpiece. Rubber seals used between EDM machines and trays are specifically engineered to withstand high temperatures. Certain types of high-temperature-resistant rubbers, such as EPDM (Ethylene Propylene Diene Monomer) or Viton, are ideal for sealing applications in EDM systems. They ensure that the seal does not degrade due to the heat generated during machining, maintaining the system's overall integrity.
Electrical Insulation Some types of rubber seals also provide electrical insulation, protecting sensitive electrical components from direct exposure to coolant or other conductive liquids. By isolating electrical systems from the dielectric fluid, rubber seals prevent short circuits and other electrical malfunctions, ensuring the safety and reliability of the EDM process.

Types of Rubber Materials for EDM Tray Seals

Different rubber materials offer specific advantages depending on the operational conditions, such as temperature, pressure, and exposure to chemicals. The following are commonly used rubber materials for seals in EDM systems:

EPDM (Ethylene Propylene Diene Monomer): Known for its excellent resistance to heat, ozone, and weathering, EPDM is widely used for sealing applications in EDM systems. It also offers good chemical resistance and is suitable for high-temperature environments.
Viton (Fluoroelastomer): Viton is a high-performance elastomer that offers superior resistance to extreme temperatures, chemicals, and oil. It's perfect for EDM applications that require excellent sealing capabilities under harsh conditions, especially when the fluid temperature rises significantly.
Nitrile Rubber (Buna-N): Nitrile rubber is commonly used in applications where resistance to oils and grease is critical. It is also known for its high tensile strength and abrasion resistance, making it a good choice for sealing applications in environments exposed to heavy mechanical wear.
Silicone Rubber: Silicone offers high flexibility and temperature resistance, making it ideal for high-precision sealing applications. It can operate effectively in a wide range of temperatures, from -60°C to +230°C, and is often used in environments that require flexibility and excellent sealing performance.
Neoprene Rubber: Neoprene is a durable rubber with good resistance to weathering, ozone, and aging. It provides moderate resistance to oils, solvents, and chemicals, making it a reliable choice for sealing applications in EDM systems.

Applications of Rubber Seals in EDM Systems

Electrical Discharge Machining (EDM) Rubber seals are essential in EDM machines, where dielectric fluids are used to facilitate the electrical discharge process. The seals ensure that the dielectric fluid remains in place and prevents leakage, keeping the system running smoothly without contamination.
Trays for Workpieces Trays or workpiece holders in EDM systems often need to be sealed with rubber gaskets to contain dielectric fluid. This ensures that the fluid remains around the electrode and workpiece, promoting better precision and reducing the risk of unwanted discharge or contamination.
Cooling Systems Many EDM machines have integrated cooling systems that require sealing to maintain consistent temperatures during machining. Rubber seals ensure that the cooling fluids do not escape and that temperature regulation is effective.
Tooling and Electrode Mounts In some EDM setups, rubber seals are used to prevent dielectric fluid from spilling around electrode mounts or other tooling components. By keeping fluid levels stable, these seals help optimize performance and electrode life.
Protective Covers for EDM Machines Rubber seals are also used in protective covers for EDM machines to prevent dust and contaminants from entering the machine's sensitive components. This helps maintain a clean working environment and extends the life of the equipment.

Why Choose Julong Rubber for Your EDM Seals?

At Julong Rubber, we specialize in providing high-performance rubber seals designed for precision and durability. Our rubber seals are made from premium materials like EPDM, Viton, and Nitrile to ensure they meet the demanding needs of EDM systems. We offer:

Custom Solutions: We design and manufacture rubber seals tailored to your specific EDM machine requirements, ensuring a perfect fit and optimal performance.
Durability and Reliability: Our seals are built to withstand extreme temperatures, pressures, and chemical exposure, providing long-lasting performance in high-demand applications.
Precision Manufacturing: With state-of-the-art manufacturing techniques, we produce seals with precise dimensions and consistent quality, ensuring that your EDM system functions with maximum efficiency and minimal downtime.
Global Standards Compliance: Our products adhere to international quality standards, making them ideal for industries worldwide, including aerospace, automotive, and precision manufacturing.

Contact Julong Rubber Today

If you are looking for high-quality rubber seals for your EDM machines and trays, Julong Rubber offers the perfect solution. Our seals are designed for long-lasting performance, ensuring leak-proof operation and maintaining the precision of your EDM process. For more information or to request a quote, contact us at info@rubberandseal.com. Let us provide you with the right sealing solution to optimize your EDM equipment!

Additional information

EDM& TRAY Seals	Material: EPDM rubber Part weight: 1g For the tests involved in the technical requirements, the samples should be taken directly from the parts for testing. If the part shape cannot be sampled, the same material as the parts should be used for testing. 1. Dimensions and tolerances The cross-sectional shape, dimensions and tolerances, product length and tolerances of the products shall meet the requirements of the design drawings. 2. Appearance The appearance of the sealing strip is not allowed to have defects that affect the performance and aesthetics of the product; such as impurities, bubbles, cracks, scratches, tears, lack of glue, broken skin, twisted deformation or flattened deformation, etc.; test the sample before the test It must be placed in the standard climate of 23°C and 50% relative humidity specified in 10291 for at least 24 hours. 3. Hardness Delivery state (23±2°C) hardness value: 50± 5 Shore A After heat aging (100℃/96h, ISO188), the hardness change value is within the range of 05 Shore A After heat aging (100C/504h, ISO188), the hardness change value is in the range of 0-5 Shore A The hardness is measured according to "180 7619-1". 4. Tensile strength Supply state (23±2℃) tensile strength: ≥ 9 MPa Tensile strength after heat aging (100℃/96h, 150188): ≥9MPa Tensile strength after heat aging (after completion of 100C/504h, ISD188): ≥ 9MPa Tensile strength is measured according to "Determination of Tensile Stress-Strain Properties of Chemical Rubber or Thermoplastic Rubber No. 37". 5. Elongation at break Elongation at break in supply state (23±2C): ≥250 % Elongation at break after heat aging (after completion of 100°C/96h, ISD188): ≥250% Elongation at break after heat aging (100℃/504h, 150188): ≥ 250% The elongation at break is determined according to "1037 Determination of Tensile Stress-Strain Properties of Vulcanized Rubber or Thermoplastic Rubber". 6. Tear strength Delivery state (23±2℃) tear strength: ≥ 12KN/m. The tear strength is measured according to "ISO34-1". 7. Compression set According to SMTC 5 400 239 Test method for compression permanent deformation of elastomer parts "Test method B-spline uses the standard recommended size, compresses 50%, heats at 100°C for 22 hours, and the compression permanent deformation is less than or equal to 65% of the test compression. 8. Low temperature performance According to Chapter 4.4 of "SMTC 5 320 040", after the spline is stored at -40°C for 22 hours, it is directly bent at 180°, and there is no crack on the surface. 9. Ozone aging resistance According to the "SMTC 3 261 004 Ozone Resistance Test Specification for Elastomer Materials", when the ozone concentration is 2ppm, the test temperature is 23±2°C, and the relative air humidity is 60%, there is no crack after 46 hours of testing. 10. Brittle temperature -40℃ 11. Density≤1.3g/cm3 12. FMVSS302 fire rating, maximum 100 13. The materials must meet the requirements of "SMTC5500001 Prohibited/Pre-used Hazardous Substances in Auto Parts and Materials", and the supplier must submit an ELV test report. 14. Materials must meet the requirements of "SMTC5500002 Guidelines for the Implementation of EU REACH Regulations", and suppliers must submit a REACH test report. Tolerance for all untolerated holes +0.5/-0.5 All chamfers B tolerance: +/-0.5 All Angle Tolerance: +/-10 All Unfilled Profile Tolerance +1.0/-1.0 All unspecified trimming tolerances are +1.0/-1.0 Please refer to the digital model for all dimensions, and the information in the illustration is for reference only. General regulations on product identification of parts and components Geometry: GB/T 3672 GB/T1182 GB/T4249 GB/T13319 GB/T16671 GB/T17851

EDM& TRAY Seals

Material: EPDM rubber
Part weight: 1g For
the tests involved in the technical requirements, the samples should be taken directly from the parts for testing. If the part shape cannot be sampled, the same material as the parts should be used for testing.
1. Dimensions and tolerances
The cross-sectional shape, dimensions and tolerances, product length and tolerances of the products shall meet the requirements of the design drawings.
2. Appearance
The appearance of the sealing strip is not allowed to have defects that affect the performance and aesthetics of the product; such as impurities, bubbles, cracks, scratches, tears, lack of glue, broken skin, twisted deformation or flattened deformation,
etc.; test the sample before the test It must be placed in the standard climate of 23°C and 50% relative humidity specified in 10291 for at least 24 hours.
3. Hardness
Delivery state (23±2°C) hardness value: 50± 5 Shore A
After heat aging (100℃/96h, ISO188), the hardness change value is within the range of 05 Shore A
After heat aging (100C/504h, ISO188), the hardness change value is in the range of 0-5 Shore A
The hardness is measured according to "180 7619-1".
4. Tensile strength
Supply state (23±2℃) tensile strength: ≥ 9 MPa
Tensile strength after heat aging (100℃/96h, 150188): ≥9MPa
Tensile strength after heat aging (after completion of 100C/504h, ISD188): ≥ 9MPa Tensile
strength is measured according to "Determination of Tensile Stress-Strain Properties of Chemical Rubber or Thermoplastic Rubber No. 37".
5. Elongation at break
Elongation at break in supply state (23±2C): ≥250 %
Elongation at break after heat aging (after completion of 100°C/96h, ISD188): ≥250%
Elongation at break after heat aging (100℃/504h, 150188): ≥ 250%
The elongation at break is determined according to "1037 Determination of Tensile Stress-Strain Properties of Vulcanized Rubber or Thermoplastic Rubber".
6. Tear strength
Delivery state (23±2℃) tear strength: ≥ 12KN/m. The tear strength is measured according to "ISO34-1".
7. Compression set
According to SMTC 5 400 239
Test method for compression permanent deformation of elastomer parts "Test method B-spline uses the standard recommended size, compresses 50%, heats at 100°C for 22 hours, and the compression permanent deformation is less than or equal to 65% of the test compression.
8. Low temperature performance
According to Chapter 4.4 of "SMTC 5 320 040", after the spline is stored at -40°C for 22 hours, it is directly bent at 180°, and there is no crack on the surface.
9. Ozone aging resistance
According to the "SMTC 3 261 004 Ozone Resistance Test Specification for Elastomer Materials", when the ozone concentration is 2ppm, the test temperature is 23±2°C, and the relative air humidity is 60%, there is no crack after 46 hours of testing.
10. Brittle temperature -40℃
11. Density≤1.3g/cm3
12. FMVSS302 fire rating, maximum 100
13. The materials must meet the requirements of "SMTC5500001 Prohibited/Pre-used Hazardous Substances in Auto Parts and Materials", and the supplier must submit an ELV test report.
14. Materials must meet the requirements of "SMTC5500002 Guidelines for the Implementation of EU REACH Regulations", and suppliers must submit a REACH test report.
Tolerance for all untolerated holes +0.5/-0.5 All
chamfers B tolerance: +/-0.5
All Angle Tolerance: +/-10
All Unfilled Profile Tolerance +1.0/-1.0
All unspecified trimming tolerances are +1.0/-1.0
Please refer to the digital model for all dimensions, and the information in the illustration is for reference only.
General regulations on product identification of parts and components Geometry: GB/T 3672 GB/T1182 GB/T4249 GB/T13319 GB/T16671 GB/T17851