Brass File Screw Fasteners

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Copper is a relatively pure copper, generally can be approximately considered to be pure copper, electrical conductivity, plasticity are better, but the strength, hardness is worse. Brass is a kind of copper containing other alloy components, the price is cheaper than copper, conductivity and plasticity is less than copper, but the strength and hardness are higher. Go up in industry and civil, choose different material according to different use characteristic, cannot generalize which is good. If do electric wire, the requirement is softer, red copper is a few better. Such as connecting parts, the place where the screws are used more brass pure copper is purple metal, commonly known as red copper, red copper or red copper. Pure copper is malleable. Pure copper, the size of a drop of water, can be pulled into filaments up to two kilometers long, or rolled into almost transparent foil larger than a bed. The most valuable property of pure copper is that it conducts electricity very well, second only to silver among all metals. But copper was so much cheaper than silver that it became the dominant force in the electrical industry. The use of pure copper is much more extensive than pure iron, each year 50% of copper is purified into pure copper by electrolysis, used in the electrical industry. The pure copper mentioned here must be very blunt indeed, containing more than 99.95% copper. Very small amounts of impurities, especially phosphorus, arsenic, aluminum, etc., will greatly reduce the conductivity of copper. Oxygen in copper (copper smelting is easy to mix with a small amount of oxygen) has a great impact on conductivity, copper used in the electrical industry must generally be anaerobic copper. In addition, lead, antimony, bismuth and other impurities will make the crystallization of copper can not be combined together, resulting in hot brittle, will also affect the processing of pure copper. This kind of pure copper with high purity is generally refined by electrolysis: the impure copper (coarse copper) as the anode, pure copper as the cathode, and copper sulfate solution as the electrolyte. When the current passes through, the impurity copper on the anode gradually melts, and the pure copper gradually precipitates on the cathode. Copper obtained by such refinement; The purity can reach 99.99%. 1. There is a certain amount of natural copper in nature. Natural copper, without artificial materials, is pure copper, also known as red copper, which has a certain metallic luster and ductility, and is easily regarded and used. Brass is an alloy of copper and zinc. The simplest brass is copper? Zinc binary alloy, call simple brass or common brass 3, red copper, call red copper again, namely pure copper red copper and brass are distinguished on color and quality! In fact, the color is clear at a glance, as the name implies! The mass of red copper is harder than brass, weight 1, there is a certain amount of natural copper in nature. Natural copper, without artificial materials, is pure copper, also known as red copper, which has a certain metallic luster and ductility, and is easily regarded and used. Brass is an alloy of copper and zinc. The simplest brass is copper? Zinc binary alloy, call simple brass or common brass 3, red copper, call red copper again, namely pure copper red copper and brass are distinguished on color and quality! In fact, the color is clear at a glance, as the name implies! The quality of red copper is harder than brass, the weight of red copper refers to pure copper, also called red copper brass refers to copper zinc alloy home home family members family movie to see scrawny African refugees, I very heartache!

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Brass File Screw Fasteners

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