国产日韩亚洲大尺度高清,国产高潮流白浆喷水免费网站,97久久综合区小说区图片区,精品国产免费第一区二区三区

?4x200mm tungsten copper rod with diameter of ?4mm and length of 200mm, can be widely used in high temperature materials, high voltage switches electrical alloys, electrical processing electrodes, microelectronic materials, as parts and components widely used in aerospace, aviation, electronics, power, metallurgy, machinery, sports equipment and other industries. More details of tungsten copper rod, please visit http://www.tungsten-copper.com/tungsten-copper-rod.html ?4x200mm tungsten copper rod has good electrical conductivity, high softening temperature, but also has arc corrosion resistance, high wear resistance, long service life,…

?3x200mm tungsten copper rod with diameter of ?3mm and length of 200mm. Which with the characteristics of high hardness, high density and high strength of tungsten, it also has excellent electrical and thermal conductivity and plasticity of copper. It has good arc breaking performance, small thermal expansion coefficient and can maintain a certain dimensional stability at high temperatures. More details of tungsten copper rod, please visit ?http://www.tungsten-copper.com/tungsten-copper-rod.html ?3x200mm tungsten copper rod with widely usages, it can be seen from electrode…

Tungsten copper rod thermal conductivity is that when the vertical temperature gradient down 1 ℃ / m, the heat through unit horizontal cross-sectional area per unit time pass, which is represented by λ or K. More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html Tungsten copper rod thermal conductivity makes no difference to the pressure, but greatly influenced by the temperature. Most of thermal conductivity of pure metal and liquid decrease with increasing temperature, but water is an exception; thermal…

Tungsten copper rod impact toughness reflects the resistance to external impact load and generally represented by ak or Ak, the units of J/cm2 and J (joule). More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html The practical significance of impact toughness indicator is to reveal the brittle tendency of material. According to the temperature of impact test, it can be divided into three types, room temperature, low temperature and high temperature impact test; and according to the gap shape it…

Tungsten copper rod flexural strength refers to the resistance to bending without broken. It usually uses three-point or four-point test for evaluation. More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html Measurement Flexural strength (GB / T 6569-86), or ISO 14704-2000 test. Flexural strength test is divided into three-point bending and four-point bending. Each point should be measured 5 times at least (10 in standard) and obtain the average. Flexural strength test conducted on universal testing machine. Used as test…

Tungsten copper rod corrosion resistance is the critical value of homogeneous plastic deformation to plastic deformation localized concentration of the transition, which is also the maximum carrying capacity under static stretching conditions. More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html Type In the role of a pure tensile force, without fracture can withstand the maximum load and the ratio of the width of the stretched membrane that, usually N / 5cm to represent. It is divided into the warp…

Tungsten copper rod corrosion resistance is one of significant properties to evaluate tungsten copper products. It mainly refers to the chemical stability and depends on components, chemical properties and morphology. More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html Optimization Improve the thermodynamic stability of tungsten copper alloy (increase electrode potential); Reduce the anode activity: Reduce the alloy cathode active phase of adaptation cathode control corrosion, non-passivated metal: Form the dense amorphous protective film on the surface of alloy, such…

Tungsten copper rod wear resistance is also called as abrasion resistance or durability, which refers to the capability of rubbing against sand paper, and represented by the reciprocal of wear rate (dt / dV or dL / dV). More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html Measurement Since different friction materials and test conditions, it can be represented by wear index or the consumption of abrasion tester (g/cm2) or its reciprocal. In addition, it refers to the resistance of…

Tungsten copper rod phase diagram is the picture under metallographic microscope, which reflects the chemical components of metal or alloy and the state or interactions. More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html Application Indentify the structure after cold, hot process; Indentify and evaluate the non-metallic inclusions in steel; Measure the decarburized and carburized layer; Check the cracks, determine the content of oxygen and evaluate the granularity; Analyze the fracture morphology.

Tungsten copper rod melting point is the balance that tungsten copper rod in solid state and liquid state chemical potential. In other words, it is the temperature solid state converts into liquid phase, which usually represented by Tm. More details of tungsten copper rod please visit http://www.tungsten-copper.com/tungsten-copper-rod.html Tungsten copper melting point is not constant, there are two factors have a great effect on melting point. The one is pressure: the melting process is also the volume expanding process, when the…