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Fluorine grease is a high-performance lubricant that excels in heat resistance, chemical resistance, and low outgassing. It is used in environments where conventional mineral oil greases are inadequate. The main applications are as follows: - Mold components in high-temperature environments (approximately 200°C or higher) such as ejector pins and slides - Equipment parts exposed to chemicals or solvents - Clean environments (semiconductors, food, medical devices) - Areas requiring contamination control in resin molding Fluorine grease is chemically stable and has a characteristic that makes it difficult to mix with other greases. Therefore, degreasing and cleaning before application are crucial. Additionally, while it has excellent heat resistance, its extreme pressure performance is limited, which means it may not be suitable for areas subjected to high loads or shock loads. Proper selection according to the application directly contributes to preventing mold troubles and improving maintenance.

Fluorine grease is used in a wide range of fields such as semiconductor equipment, chemical facilities, and food machinery as a high-performance lubricant with excellent heat resistance and chemical resistance. Its ability to maintain stable lubrication performance even in high-temperature environments and chemical contact environments is particularly noteworthy. On the other hand, there are also disadvantages. First, the high cost of raw materials tends to make the price expensive. Additionally, while it excels in low friction, its extreme pressure performance is not high, which may make it unsuitable for high-load applications such as large gears and heavy machinery. Furthermore, in general environments, its performance may be excessive, leading to cost disadvantages. Lubricants are not simply "high performance = optimal"; selecting the right one according to the usage environment is crucial. When chemical resistance and high-temperature compatibility are required, fluorine grease is appropriate, while for high loads, molybdenum grease may be needed, necessitating a distinction based on the application.

In mold temperature control circuits, quick couplings are widely used to supply cooling water and hot water. However, in the field, there are cases where piping can become disconnected due to factors such as pulling or twisting of hoses, contact with operators or carts, and vibrations from molding machines or molds. Additionally, hoses can become detached if the lock is not fully secured or due to unintended unlocking actions, leading to risks of temperature control water leaks and equipment shutdowns. The CSC-200 is a safety clip designed to prevent the unlocking of quick couplings by attaching to the lock section. It suppresses unintended disconnection of the couplings and enhances the safety of temperature control piping. It can be easily attached without tools and can be utilized as a safety measure for mold temperature control circuits. This product is recommended for sites considering measures to prevent hose disconnection in temperature control piping and enhance the safety of quick couplings. For more details, please visit the product page.

In high-temperature environments, grease does not simply diminish; its "state" deteriorates due to hardening, separation, and carbonization. Even if there is some remaining, the lubrication function decreases, leading to increased sliding resistance, poor return, and fine seizure. If these warning signs are ignored, it will eventually progress to seizing or burning. Therefore, the idea that "using high-performance grease eliminates the need for reapplication" does not hold true in high-temperature areas. What is important is to visualize the signs of abnormalities and to establish rules for inspection, cleaning, and reapplication. Especially in die-casting molds, temperature changes, high surface pressure, and dust contamination overlap, causing lubrication conditions to fluctuate constantly. Maintaining a stable operational state takes precedence over reducing maintenance frequency. 【High-Temperature Sliding Component Checklist】 □ Is the return of the pin sluggish? □ Are there any signs of seizure or dust accumulation? □ Is the grease hardened or film-formed? □ Is there any catching when starting to move? □ After cleaning, is the appropriate amount reapplied? Rather than forcibly reducing maintenance frequency, the realistic approach is to operate in a way that prevents stoppage accidents before they occur.

In high-temperature environments such as die-casting molds, we sometimes receive inquiries stating that even when using high-temperature grease, the maintenance frequency does not decrease as expected. What are the reasons behind the notion that "heat-resistant grease = reduced maintenance frequency" not necessarily being true? In high-temperature environments, several complex factors come into play, including: - Evaporation and separation of oil - Oil film breakdown due to load and repeated sliding - Contamination by fine wear particles - Changes in properties due to temperature fluctuations As a result, simply having a high heat resistance does not guarantee the maintenance of a stable lubrication state. In this third installment, we will clarify: ✔ Why degradation progresses more easily in high-temperature environments ✔ The mechanisms behind seizure and sticking ✔ How to approach the decision for reapplication If you want to reassess the maintenance of high-temperature molds, please take a look. ▼ For more details, click here ▶︎ [Q&A] Why doesn't maintenance frequency decrease in high-temperature environments? [Part 3] (*https://mandm-goldengrease.com/why-grease-maintenance-frequency-high-temperature/)

Q. What happens to grease in high-temperature environments? Does it stick, deteriorate, or seize? A. In high-temperature conditions, these phenomena often occur "gradually." In a high-temperature environment, the oil components in the grease become more prone to separation and movement, making it difficult for the lubricating components to remain in the moving parts. At this stage, stiffness in movement and insufficient lubrication begin to appear. If the condition where the lubricating film cannot be maintained continues, direct contact between metals increases, leading to friction and wear. As a result, issues such as seizing and sticking occur. In other words, the progression often follows this flow: deterioration → insufficient lubrication → seizing and sticking. Even if a problem seems to occur suddenly, there is always a change in lubrication condition in the preceding stages. In high-temperature environments, not only the heat resistance temperature values but also the ability to maintain lubrication under high temperatures become crucial points for grease selection. The changes in grease that occur at high temperatures and the mechanism of trouble occurrence are organized technically in the attached document.

In die-cast molds and movable parts used in high-temperature environments, issues such as "despite applying grease, movement becomes sluggish" and "eventually seizing occurs" can be observed. This phenomenon is not merely due to wear or insufficient lubrication; the main cause is the inability to maintain a lubricating film at high temperatures. As the temperature rises, the separation and volatilization of oil components progress, making it easier for metal parts to come into direct contact with each other, leading to increased friction and rising sliding resistance. Seizing does not occur suddenly; it is a phenomenon that surfaces as a result of the gradual deterioration of lubrication conditions. In high-temperature environments, it is not only the "heat resistance temperature value" that matters, but also whether lubrication conditions can be maintained at high temperatures, which becomes an important point in grease selection. The mechanisms behind seizing and sluggish movement, as well as considerations during selection, are organized technically in the attached materials.

In high-temperature environments such as die-casting molds, there are many cases where, despite using high-temperature grease, "the grease flows away during operation." This phenomenon occurs not simply because the grease melts, but because the oil components separate under high temperatures, making it difficult for the lubricating components to remain in the moving parts. As a result, this leads to issues such as: - Oil splattering to the surroundings - Insufficient lubrication - Increased frequency of reapplication In high-temperature environments, it is not only the heat resistance temperature that matters, but also whether the lubrication state can be maintained under high temperatures, which becomes an important point in grease selection. Detailed causes and considerations for selection are organized technically in the attached document.