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The role and characteristics of antimony, antimony white manufacturers tell you


Antimony white manufacturers believe that the main role of antimony in the alloy is to increase the hardness of the alloy and prevent oxidation at room temperature. Antimony partially dissolves in lead, increasing the hardness and strength of the lead alloy and improving lead's corrosion resistance to sulfuric acid. For chemical equipment and piping materials, a lead alloy containing about 6% antimony is suitable; for connectors, an alloy containing 8%~10% antimony is suitable. There are many types of antimony-containing lead alloys, which can be divided into three categories according to their composition and properties: lead-antimony alloys, hard lead alloys, and ultra-hard lead alloys.

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Antimony white manufacturers believe that Babbitt metal is a tin-based and lead-based bearing alloy with antifriction properties. It was invented by the American Babbitt. Because it is white, it is also called white metal. Antimony white manufacturers believe that the main alloy components are tin, lead, antimony, and copper. Antimony and copper are used to increase the strength and hardness of the alloy. Antimony white manufacturers believe The microstructure of Babbitt metal is characterized by the uniform distribution of hard-phase particles in a soft-phase matrix, giving the alloy excellent embedability, conformability, and anti-seizing properties. After running-in, the soft base is recessed and the hard points protrude, forming small gaps between the sliding surfaces, which become oil storage spaces and lubricating oil channels, helping to reduce friction. The protruding hard points provide support and are beneficial for load bearing.

Antimony white manufacturers believe that because Babbitt metal is soft and has low strength, in addition to being used to make sliding bearings, it is also often used in the form of metal wire or powder spraying on substrates such as steel to make bushings. Babbitt metal is divided into tin-based alloys and lead-based alloys. The latter contains 10%~20% antimony and 5%~15% tin. A small amount of arsenic is often added to prevent segregation and refine the grain size. Lead-based alloys have lower strength and hardness than tin-based alloys, and their corrosion resistance is also poor.

  Antimony white manufacturers believe that the main components of Babbitt metal are tin, lead, antimony, and copper. Antimony and copper are used to increase the strength and hardness of the alloy. Babbitt metal can be simply divided into three types: high-tin alloys, high-lead alloys, and intermediate alloys (tin and lead account for a significant proportion in the alloy). In all these alloy systems, antimony and copper are important alloying elements and hardening elements, and their structure consists of hard intermetallic compounds dispersed in a soft matrix.

  Antimony white manufacturers believe that the microstructure of Babbitt metal is characterized by the uniform distribution of hard-phase particles in a soft-phase matrix, giving Babbitt metal excellent embedability, conformability, and anti-seizing properties. After running-in, the soft base is recessed and the hard points protrude, forming small gaps between the sliding surfaces, which become oil storage spaces and lubricating oil channels, helping to reduce friction. The protruding hard points provide support and are beneficial for load bearing.

  Antimony white manufacturers believe that the main use of antimony is its oxide, antimony trioxide, which is used in the manufacture of refractory materials. Except for halogen-containing polymer flame retardants, it is almost always used with halogenated flame retardants. The formation of antimony halides by antimony trioxide can slow down combustion, which is why it has flame-retardant properties. These compounds react with hydrogen atoms, oxygen atoms, and hydroxyl radicals to extinguish the fire. These flame retardants are commercially used in children's clothing, toys, aircraft, and automotive seat covers. It is also used as an additive for polyester resins in the fiberglass reinforced plastic (commonly known as FRP) industry, such as engine hoods for light aircraft. When the fire is extinguished, the resin will burn, but its burning will stop by itself.