Custom Mica Sheet For Thermal Insulation , Fire Resistant Mica Gasket For Rocket Engine
Mica Gaskets For Aviation And Aerospace / Fire Resistant Mica Gasket For Rocket Engine
Mica gaskets and mica-ceramic washers are critical components in jet engine applications, providing essential sealing and insulation properties. Here’s a detailed overview of their benefits, features, and specific uses in jet engines.
Benefits
- High Temperature Resistance: Mica gaskets can withstand extreme temperatures found in jet engines, ensuring reliable sealing under harsh conditions.
- Fire Resistance: Mica is non-combustible, providing added safety in environments where fire risk is a concern.
- Chemical Resistance: These gaskets are resistant to various fuels and oils, maintaining integrity in fuel systems.
- Excellent Sealing: Mica gaskets provide reliable sealing, preventing leaks of gases and fluids, which is crucial for engine efficiency.
Applications
- Combustion Chambers: Used to seal components in the combustion chamber to prevent leakage of combustion gases.
- Fuel Systems: Employed in fuel lines and injectors to ensure a tight seal and prevent fuel leaks.
- Exhaust Systems: Used to seal joints in exhaust systems, preventing the escape of exhaust gases.
Mica and Ceramic Washers
Benefits
- Thermal Insulation: Mica and ceramic washers provide excellent thermal insulation, protecting sensitive components from heat damage.
- Mechanical Strength: Ceramic materials add mechanical strength, making these washers durable under high-stress conditions.
- Electrical Insulation: Both mica and ceramic materials offer good electrical insulation, reducing the risk of electrical failures.
- Lightweight: These materials are lightweight, contributing to overall weight reduction in jet engines, which is critical for performance.
Applications
- Bolt and Nut Assemblies: Used in fastening systems within jet engines to distribute load and provide thermal insulation.
- Vibration Dampening: Mica and ceramic washers can help dampen vibrations, enhancing the longevity of engine components.
- High-Temperature Sealing: Employed in areas where high temperatures and pressures exist, providing effective sealing and insulation.
Mica gaskets and mica-ceramic washers are vital for the performance and safety of jet engines. Their unique properties—such as high temperature and fire resistance, excellent sealing capabilities, and mechanical strength—make them indispensable in ensuring the reliability and efficiency of jet engine operations. These components are engineered to withstand the demanding conditions of aviation, contributing significantly to overall aircraft performance.
Technical Data Sheet
| Property | HP5 | HP8 | Unit | Test Criteria |
| Mica Type | Muscovite | Phlogopie | Visual | |
| Mica content | 92 | 92 | % | IEC 60371-2 |
| Glue content | 8 | 8 | % | IEC 60371-2 |
| Density | 1.8-2.45 | 1.8-2.45 | g/cm3 | IEC 60371-2 |
| Yield Strength | ＞200 | ＞200 | MPa | GB/T 5019.2 |
| Moisture Absorption | ＜1 | ＜1 | % | GB/T 5019.2 |
| Fire Resistance | ||||
| Continuous working condition | 500 | 700 | ℃ | |
| Intermittent working condition | 800 | 1000 | ℃ | |
| Thermal gravimetry | ||||
| Thermal gravimetry at 500℃ | ＜1 | ＜1 | % | IEC 60371-2 |
| Thermal gravimetry at 700℃ | ＜2 | ＜2 | % | IEC 60371-2 |
| Electric property | ||||
| Dielectric strength | ＞20 | ＞20 | KV/mm | IEC 60243-1 |
| Insulation resistance at 23℃ | 1017 | 1017 | Ω·cm | IEC 60243-1 |
| Insulation resistance at 500℃ | 1012 | 1012 | Ω·cm | IEC 60243-1 |
| Flame retardant test | ||||
| Flame retardance | UL94 V-0 | UL94 V-0 | ||
| Smoke test | ＜4 | ＜4 |
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Mica Testings for EV Industry as below:
| Item | Property | Testing items | Testing criteria | Tested by |
| 1 | Physical Property | Mica content | IEC 60371 | YT Mica Internal Test |
| 2 | Glue content | IEC 60371 | ||
| 3 | Density | IEC 60371 | ||
| 4 | Thickness | Thickness Gauge Test | ||
| 5 | Water Absorption | ISO 62 | ||
| 6 | Delamination | GB/T 5019.2-2009 | ||
| 7 | TGA(Thermal Gravimetry Analysis) | IEC60371 | 3rd PartyTest | |
| 8 | Linear expansion coefficient (length direction) thickness direction | ASTM E831 | 3rd PartyTest | |
| 9 | Back glued performance | Peel off strength | ASTM D3330 | YT Mica Internal Test |
| 10 | Fire retardance | Flame retardance | UL94 | 3rd PartyTest |
| 11 | Cleanness | Cleaness | VDA19,ISO16232 | 3rd PartyTest |
| 12 | Thermal Property | Thermal conductivity | ASTM E1461 | 3rd PartyTest |
| 13 | Heat Capacity | ISO 11357 | 3rd PartyTest | |
| 14 | Fire Resistance | 1200±100℃,30min | YT Mica Internal Test | |
| 15 | Mechanic Property | 25℃ Bending Strength | ISO 178 | YT Mica Internal Test |
| 16 | 25℃Bending Modulus | ISO 178 | ||
| 17 | -40℃ Bending Strength | ISO 178 | ||
| 18 | 25℃ Tensile Strength | ISO 527 | ||
| 19 | 25℃ Section Elongation | ISO 527 | ||
| 20 | 25℃ Tensile Modulus | ISO 527 | ||
| 21 | Impact / Shock Strength | ISO 179:2010 | 3rd PartyTest |
| Item | Property | Testing items | Testing criteria | Tested by |
| 22 | Electrical properties | Insulation resistance | IEC 60093/IEC 62631-3 | YT Mica Internal Test |
| 23 | Volume resistivity | GB/T1410-2006 | YT Mica Internal Test | |
| 24 | Dielectric Strength | IEC 60243 | YT Mica Internal Test | |
| 25 | Withstand voltage test | GB/T1408-2016 | YT Mica Internal Test | |
| 26 | Comparative Tracking lndex(CTI) | IEC 60112 | 3rd PartyTest | |
| 27 | Ecologic performance | Hazardous substances | RoHS2.0 & REACH & ELV | 3rd PartyTest |
| 28 | Aging performance 85/85, 1000h, after the test completed, 2 hours standby at room temperature | Visual Inspection | YT Mica Internal Test | |
| 29 | Dimension Control | YT Mica Internal Test | ||
| 30 | Weight Control | YT Mica Internal Test | ||
| 31 | Water Absorption | ISO 62 | YT Mica Internal Test | |
| 32 | Tensile Strength | IEC 60371-2/GBT 5019.2 | YT Mica Internal Test | |
| 33 | Bending Strength | ISO 178 | YT Mica Internal Test | |
| 34 | Dielectric Strenght | IEC 60243 | YT Mica Internal Test | |
| 35 | Insulation resistance | IEC 60093/IEC 62631-3 | YT Mica Internal Test | |
| 36 | Withstand voltage test | GB/T1408-2016 | YT Mica Internal Test | |
| 37 | Thermal conductivity | GB/T 10294-2008 | 3rd PartyTest | |
| 38 | Flame retardance | UL94 | 3rd PartyTest |
Yitian Mica has obtained 5 invention patents, 21 practical patents, 20 software registration rights, and 3 trademarks. More intellectual property rights has been applied for verification.
YTMICA 5 invention patents:
a mica insulation material for battery cells and its processing & application.
a squeeze-resistant fireproof mica tape for power batteries and its processing & application.
high-temperature resistant mica tape & mica thermal insulation parts and their production methods.
a processing method for fire-resistant mica tape.
a fire-resistant insulation tape for optical cables.
System certifications obtained:
ISO9001 Quality Management System Certificate
ISO14001 Environmental Management System Certificate
ISO45001 Certificate of Occupational Health&Safety Management
IATF 16949 Quality Management System certificate
SA8000 Social Responsibility Management System Certificate
YT MICA fully implement the ISO 9001-2015 quality system operation,as a stan- dardization of internal management,strengthen the system building an important measure.A strict quality control system has been established,from raw materials, processes, finished products inspection,to ensure that every link in the production process is strictly in accordance with the standards for testing.
YT Mica has equipped with various fire-resistant testing devices and can assist customers in developing fire-resistant cable products according to different standards of various countries, providing one-stop solution service.
YT Mica has a dedicated R&D department working on innovations and the development of your projects. It is our longstanding experience with processing natural mica that allows us to provide tailor-made solutions for our end customers. Our product development and application engineering specialists will be in close cooperation with our customers to identify their needs and meet their specific requirements. If we don't have an immediate solution for you, our R&D department will work with you to develop and deliver the best possible solution that will meet your needs.
We have invested and developed expertise in machining, drilling, cutting, sawing and punching, thermal pressing/stamping our products to provide the best solutions to our customers. From our home made mica sheets we can manufacture pieces according to your technical specifications.
Know more about YT Mica at www.ncnc.cn
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