<p>In industrial production, lubrication failure under high-temperature conditions is a technical challenge that plagues many enterprises. When operating temperatures exceed 350°C, traditional lubricating oils and greases experience problems such as oxidative decomposition, viscosity reduction, and lubricating film rupture, leading to accelerated equipment wear and frequent failures. Molybdenum disulfide (MoS₂), as a premium solid lubricant, has become the ideal choice for solving high-temperature lubrication challenges above 350°C due to its excellent thermal stability.</p>

<p><strong>1. Common Problems of Lubrication Failure in High-Temperature Conditions</strong></p>

<p>High-temperature environments pose severe challenges to lubrication systems, with common problems including:</p>

<p>1. Lubricating oil oxidative deterioration: For every 10°C increase in temperature, the oxidation rate of lubricating oil doubles, and oil rapidly ages and fails at high temperatures.</p>

<p>2. Sharp viscosity reduction: High temperatures cause lubricating oil viscosity to decrease, unable to form an effective lubricating film, resulting in direct metal-to-metal contact and severe wear.</p>

<p>3. Grease dripping and loss: At high temperatures, the base oil in grease evaporates and the thickener decomposes, causing the grease to dry out or drip, losing its lubricating function.</p>

<p>4. Coking and carbon deposits: At high temperatures, lubricating oil thermally decomposes to produce carbon deposits, clogging lubrication channels and aggravating equipment wear.</p>

<p><strong>2. High-Temperature Lubrication Advantages of MoS₂</strong></p>

<p>Molybdenum disulfide demonstrates unique advantages in high-temperature lubrication:</p>

<p>1. Excellent thermal stability: Can work stably up to 350°C in air, and withstand 1100°C in inert atmosphere or vacuum without decomposition.</p>

<p>2. Solid lubrication characteristics: Does not rely on viscosity to form a lubricating film, maintaining stable lubrication performance at high temperatures.</p>

<p>3. Low friction coefficient: Even under high-temperature conditions, the friction coefficient remains at a low level of 0.02-0.06.</p>

<p>4. Chemical inertness: Good compatibility with most metals and plastics, without chemical reactions with lubricating media.</p>

<p><strong>3. Application Forms of MoS₂ in High-Temperature Conditions</strong></p>

<p>For different high-temperature conditions, MoS₂ can be applied in various forms:</p>

<p>1. Dry film coating: MoS₂ is formulated with binders into a coating, sprayed or brushed onto part surfaces to form a 0.005-0.025mm solid lubricating film, suitable for high-temperature sliding bearings, guide rails, etc.</p>

<p>2. Composite grease: Adding 3-10% MoS₂ to high-temperature grease improves the extreme pressure anti-wear performance and high-temperature stability of the grease.</p>

<p>3. Self-lubricating composites: MoS₂ is added as a filler to metal-based or plastic-based composites to make self-lubricating bearings, bushings, and other parts.</p>

<p>4. Dispersion: MoS₂ is dispersed in high-temperature resistant carriers for lubrication and anti-seize treatment of high-temperature areas.</p>

<p><strong>4. Typical High-Temperature Application Cases</strong></p>

<p>1. Heat treatment equipment: Conveyor belt bearings in heat treatment furnaces operate at 400-600°C. After applying MoS₂ dry film coating, bearing life increased by 3-5 times.</p>

<p>2. Steel metallurgy: Continuous casting machine withdrawal straightening roller bearings work in high-temperature radiation environments. Composite grease with MoS₂ effectively solved the lubrication failure problem.</p>

<p>3. Petrochemical industry: Cracking furnace tube supports operate above 500°C. MoS₂ solid lubrication avoided carbonization and coking of traditional lubricants.</p>

<p>4. Glass manufacturing: Glass forming mold temperatures reach 800°C. MoS₂ coating achieved smooth mold release and extended service life.</p>

<p><strong>5. High-Temperature Application Advantages of Thriving Non-Acid Leaching MoS₂</strong></p>

<p>Thriving (Chaoyang) New Materials Co., Ltd. produces non-acid leaching molybdenum disulfide with unique advantages in high-temperature applications:</p>

<p>1. Ultra-high purity guarantee: Product purity ≥99%, extremely low impurity content, no harmful substances produced from impurity decomposition at high temperatures.</p>

<p>2. Extremely low chloride ion content: Chloride ion content <10ppm, avoiding the risk of chloride ion corrosion to metal substrates at high temperatures.</p>

<p>3. Controllable particle size: Different particle size specifications (D50: 1-10μm) can be provided according to coating process requirements, optimizing coating quality and lubrication effect.</p>

<p>4. Environmental process guarantee: Physical flotation purification process, product complies with RoHS environmental standards, suitable for high-temperature conditions with strict environmental requirements.</p>

<p><strong>6. MoS₂ Selection Recommendations for High-Temperature Conditions</strong></p>

<p>When selecting MoS₂ products, choose according to specific operating conditions:</p>

<p>- Temperature below 400°C: Standard grade MoS₂ (SF series) can be used, with high cost-effectiveness.</p>

<p>- Temperature 400-600°C: High-purity grade MoS₂ (TF series) is recommended to ensure high-temperature stability.</p>

<p>- Temperature above 600°C: Inert atmosphere protection is required, use ultra-fine high-purity MoS₂.</p>

<p>- Vacuum high-temperature environment: MoS₂ can withstand 1100°C, making it an ideal vacuum lubricating material.</p>

<p><strong>7. Conclusion</strong></p>

<p>High-temperature lubrication failure is a key issue restricting the reliable operation of industrial equipment. Molybdenum disulfide, with its excellent high-temperature stability and solid lubrication characteristics, has become an effective solution for high-temperature lubrication challenges above 350°C. As the only enterprise in China mastering physical flotation purification technology, Thriving (Chaoyang) New Materials Co., Ltd. is committed to providing high-quality non-acid leaching MoS₂ products for high-temperature applications, helping Chinese manufacturing achieve reliable lubrication under extreme conditions.</p>

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