Related content on high-temperature chain oil
Release time:
2021-10-24
Author:
Goncord Oil
High‑temperature chain oil is a patented, synthetic, multi‑functional lubricant containing polytetrafluoroethylene (PTFE) lubricating particles. It is particularly well suited for precision instruments, mechanical components operating under high‑temperature conditions, and heavy‑duty, high‑load equipment. As a synthetic formulation, it exhibits excellent adhesion, remaining stable without loss, dripping, evaporation, drying out, or forming sticky carbon deposits. Its service temperature range spans from –40°C to 260°C.
High‑temperature chain oil is a patented, synthetic, multi‑functional lubricant containing polytetrafluoroethylene (PTFE) lubricating particles. It is especially suited for precision instruments, mechanical components operating under high‑temperature conditions, and heavy‑duty, high‑load equipment. As a fully synthetic product, it exhibits excellent adhesion, remaining stable without loss, dripping, evaporation, drying out, or forming sticky carbon deposits. Its service temperature range spans from –40°C to 260°C. This all‑synthetic, high‑temperature, carbon‑deposit‑free chain oil incorporates PTFE—often referred to as fluorinated ether, Teflon, or Fluon—which boasts the lowest coefficient of friction in the world. PTFE possesses exceptional permeability, enabling its lubricating particles to intimately bond with the surface gaps of moving parts.
High‑temperature chain oils operate under severe service conditions, and their performance must meet stringent requirements in practical applications:
(1) Coking Performance: The extent of coking is the most critical criterion for evaluating the quality of chain lubricants. When coked, the deposits adhere to the chain and guide rails, causing resistance and drag during operation, increasing friction, impact loads, and motor current, thereby accelerating chain wear and fatigue while wasting energy. In severe cases, this can lead to chain skipping, chain derailment, chain breakage, or even burnout of the variable-frequency drive or motor. Coking is a product of high‑temperature oxidation of the lubricant; the presence of water, water vapor, acidic or alkaline substances, and colloidal matter further promotes oxidation and increases coking. Coking is unavoidable; a high‑quality chain lubricant has a chemically stable formulation that generates minimal oily coke and allows it to be effectively removed, thus extending the intervals between chain maintenance and coke‑removal operations.
(2) Volatility is another critical parameter for evaluating the quality of chain lubricants. Excessive volatility leads to increased oil consumption and environmental pollution. Notably, if volatility is too high and the exhaust system fails to remove the vapors promptly, an oil mist can form in the upper section of the oven; upon condensation, this mist may drip onto the fabric, causing contamination. Ideally, a high‑quality chain lubricant should exhibit minimal volatility. The primary cause of elevated chain oil consumption is excessive evaporation, which diminishes the economic efficiency of the lubricant. The properties of the base oil fundamentally determine the level of chain oil consumption.
(3) In permeable chains, there are slight clearances between the inner and outer link plates, as well as between the rollers and the inner link plates. Chain lubricant can thus seep through these gaps into the friction interfaces between the bushings and pins, and between the rollers and bushings. Poorly permeable chain lubricants, on the other hand, hinder oil penetration to the friction points, exacerbating chain wear, potentially leading to seizing, and reducing the chain’s service life.
(4) Lubricity refers to the ability of chain oil to maintain an effective lubricating film at elevated temperatures. Poor lubricity leads to increased friction, higher energy consumption, and accelerated wear. The lubricity of chain oil is influenced by the strength of the lubricating film at high temperatures and by its additive system.
(5) Low-Temperature Performance: During winter, when equipment remains shut down for an extended period and is subsequently restarted, if the chain lubricant has excessively high viscosity or solidifies, it can lead to difficult startup, prolonged warm-up times, and even damage to the variable-frequency drive or motor. Therefore, the chain lubricant must maintain good fluidity at low temperatures.
Our high-quality, high-performance synthetic grease provides optimal lubrication for chains and ratchets, exhibits excellent thermal and oxidative stability, and offers superior adhesion.
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