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What is a damping pivot?

Definition of a damping pivot: As the name suggests, a pivot is a shaft used to connect the main components of a product; during rotational operation, it simultaneously bears bending moments and torsional loads. Common types of pivots include: mobile phone pivots (for flip‑style or rotating‑screen phones), laptop hinges, portable DVD player pivots, LED desk lamp pivots, LCD display pivots, and so on.

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2021

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Concept of Upset Forging in Cold Forging Processes

We should understand that cold upsetting and localized forming are two distinct concepts: First is full‑area upsetting, where force is applied to the entire end face of the workpiece. Second is localized upsetting, where pressure is exerted only on the required areas. For full‑area forming, because the cold upsetting process involves a large contact area and high forming loads, it requires a high‑tonnage press. In contrast, localized forming can achieve the necessary changes in wall thickness with lower forces, making it widely used in the forming of holes and slots. That concludes the explanation of upsetting and forming processes; we hope this has been helpful.

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2021

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Causes of Rusting in Stainless Steel Screws

When dust or foreign metallic particles adhere to a surface, and in the presence of humid air, these deposits combine with condensation on stainless steel screws to form a microscopic galvanic cell, triggering an electrochemical reaction that damages the protective film—this phenomenon is known as electrochemical corrosion.

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2021

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Methods for Preventing Seizure of Stainless Steel Fasteners

Fasteners are commonly referred to as standard parts in the market; they constitute a broad category of mechanical components used to securely join two or more parts (or structural elements) into a single, integrated assembly. They are characterized by an extensive variety of types and specifications, diverse performance and applications, and a high degree of standardization, serialization, and interchangeability. As widely used basic mechanical components, fasteners enjoy substantial demand.

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2021

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What is the role of lubricant for linear guide rails, and how should you choose it?

An important characteristic of linear guide rail lubricant is that it separates well from water-based cutting fluids, rather than being miscible with them. Its excellent anti-emulsification properties make this lubricant suitable for machinery equipped with guide rails—either on the machine itself or in its surrounding environment. It is also ideal for circulating lubrication of bearings, gears, and other components. Linear guide rail lubricant is particularly well-suited for equipment where hydraulic systems are integrated with other mechanical components, as well as for hydraulic elevators and lifts. Linear guide rails have a wide range of applications, often employed in automated bearing‑based operations—for example, in imported machine tools, laser welding equipment, and bending machines. When used, they must work in conjunction with bearings to form a complete, coordinated system; thus, in machinery requiring extremely high precision, linear guide rails play a crucial role. When lubricating mechanical tools, guide rail lubricants should minimize friction and unnecessary motion as much as possible, ensuring that the finished material achieves a smooth surface. Under conditions of low speed and heavy load, the lubricant must not exhibit undesirable phenomena such as loss of adhesion. Linear guide rail lubricants fully meet—or even exceed—the stringent requirements these machines impose on guide rail lubrication.

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2021

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Do you know what the applications of ball screws are?

Ball screw bearings can be used in a wide range of manufacturing machinery, but they are most commonly found in machine tools, where they serve specific production purposes. During operation, ball circulation can occur via three main methods: recirculating tube type, recirculator type, and end‑cap type. As for preload methods, the primary options are positioning preload and constant‑force preload. When selecting a ball screw, it is essential to choose the appropriate type based on the intended application. High‑precision ground ball screws are available, with accuracy levels ranging from CO to C7. Another option is high‑precision cold‑rolled ball screws, which offer precision grades from C7 to C10, allowing users to select the grade best suited to their needs. Since ball screws operate continuously during use, they experience significant wear; therefore, maintaining proper lubrication is crucial. To achieve adequate lubrication, lubricants must be applied. Two common types of lubricants for ball screws are mineral oil and grease. Mineral oil can include engine oil or turbine oil grades 90–180, while some ball screws also utilize spindle oil grade 140. For grease, lithium‑based greases are recommended; when applying grease, ensure it is distributed within the thread raceways and the housing space surrounding the nut.

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