The introduction of High-precision brass bar

High-precision brass bar

High-precision brass bar manufacturing principles
(1) all elements without exception, to reduce the electrical conductivity and thermal conductivity of the copper rod, where the elements in solid solution of copper rod, resulting in the lattice distortion of the copper rod, so that the directional flow of free electrons generated when the wave scattering, so that resistance The rate of increase in the contrary there is no solid solubility or very little solid solution elements in the copper rod, the electrical and thermal conductivity of the copper rod should be noted that some elements in the copper rod in the solution as the temperature decreased heated to reduce the precipitation of elemental and metal compounds, both solid solution and dispersion strengthened copper rod alloys, but also the electrical conductivity decreased much. for high strength and high conductivity alloy is an important alloying principle here should be particularly noted that the alloy composed of four elements iron, silicon, wrong, chromium and copper rod is extremely important and high-strength high conductivity alloy; of alloying elements on the copper rod performance is superimposed on the CoCr-Zr alloy is a well-known high strength and high Lead alloys;
(2) copper-based corrosion resistant alloy of the organization should be single-phase, to avoid the second phase caused by electrochemical corrosion in the alloy. This added to the alloying elements in copper rod should have a lot of solid solubility, or even unlimited mutual solubility of elements in the engineering applications of single-phase brass rods, bronze rods, white copper rod has excellent corrosion resistance , is an important heat exchange materials.
(3) wear-resistant copper-based alloys are soft phase and hard phase, and therefore must ensure that the people in the alloying elements in addition to solid solution of copper rod should also be hard phase precipitates, copper rod alloys The typical hard the Ni3Si, FeALSi, compounds. Developed in recent years, the auto synchronizer gear alloy in a phase of the soft phase, negative phase of the hard phase, a phase of not more than 10%.
(4) the damping properties of solid-state multi-crystalline transition of the copper rod alloys such as Cu-Mn alloy, solid state thermo-elastic martensitic transformation process of the alloy with memory performance, such as the one of Al in Cu Zn, Cu, Al a Mn alloy.
(5) the color of the copper rod to change the way of the addition of alloying elements, such as the increase of people of zinc, aluminum, tin, nickel and other elements, as the content changes, the color red Hitodo one yellow and one white changes, reasonable to control the content of imitation gold materials and imitation silver alloy.
(6) the elements selected by the alloying of copper rod and alloy is commonly used, inexpensive and pollution-free, the added element should be in line with the diverse small amount of the principle of alloy raw materials to comprehensive utilization of the alloy with excellent process performance, fitness processed into a variety of finished and semi-finished products.

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The Presentation of High-precision brass bar

High-precision brass bar
High-precision brass bar information :
Brass uses
Do a variety of deep drawing and bending manufacturing parts, such as pins, rivets, washers, nuts, catheters, pressure gauge, screen, radiator parts. Has good mechanical properties, thermal state plastic, plastic is acceptable in the cold state, good machinability, and easy-fiber welding and welding, corrosion resistance, is widely used an ordinary brass varieties.
Brass Category
Brass material is composed by more than two kinds of elements, a variety of alloys called special brass. Such as lead, tin, manganese, nickel, iron, silicon, copper alloy. Brass have a strong wear resistance. Special brass known as special brass, high strength, hardness, corrosion-resistant chemical. There is the cutting of the mechanical properties are more prominent. Pull into a seamless copper from brass, soft, wear resistance and strong. Brass seamless pipe heat exchanger and condenser can be used for low temperature piping, submarine transport tube. Manufacture of sheet metal, Rod, bar, pipe, cast parts. 62% to 68% in copper, plastic, manufacturing, such as pressure devices.
Brass rod according to the different types of alloying elements contained in the brass, brass is divided into ordinary brass and special brass two. Pressure processing of brass called a deformation of brass.
Brass features
Brass is an alloy of copper and zinc. The simplest brass is copper – zinc binary alloy, known as the simple brass or common brass. Changing the content of zinc in the brass can be different mechanical properties of brass. Brass zinc content is higher, higher strength and lower plasticity. Industry, brass, zinc does not exceed 45%, the high zinc content will be brittle, so that the deterioration of alloys. Order to improve certain properties of the brass, the brass on the basis of other alloying elements brass called special brass. Common alloying elements silicon, aluminum, tin, lead, manganese, iron and nickel. In brass and aluminum can improve the yield strength and corrosion resistance of brass, slightly lower plasticity. Less than 4% of the aluminum-containing brass has good processing, casting and other performance. Plus 1% tin in brass significantly to improve anti-seawater and marine atmospheric corrosion of brass, so called “Navy brass. Tin but also to improve the machinability of brass. The main purpose of the brass lead to improve machinability and improve the wear resistance, the impact of lead on the strength of the brass. Manganese brass has good mechanical properties, thermal stability and corrosion resistance; in the manganese brass and aluminum, can also improve its performance, the smooth surface of the casting. Brass can be divided into two types of products for foundry and pressure processing.
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