Baosteel W9cr4v2 mold steel, W9cr4v2

规格：

齐全

价格：

合理

质量：

100%正品

.Characteristics of materials
. . ,
Steel is a commonly used high-speed tool steel. The effective thickness of oil-tungsten high-speed steel is less than,
for work. After heating, it is heated in flowing air (wind ) can be quenched by heat and obtain
high hardness. After heat treatment, high-speed steel has good hot hardness. Chromium and vanadium are the main elements responsible for the hot hardness of high-speed steel. Vanadium is a strong carbide-forming element that causes secondary hardening of steel. Chromium is a carbide-forming element. Adding chromium improves the quenching permeability and toughness, and can increase the secondary hardening efficiency and hot hardness of steel. Chromium can also improve the oxidation resistance of steel. Decarburization and corrosion resistance. ,
. . The basic properties of steel such as secondary hardening and hot hardness are caused by carbon and various carbide-forming elements to form various carbides. The carbon content in steel is very important. When the carbon content is too low When the carbon content is high, the number of carbides increases, and the concentration of carbon and alloying elements increases, which reduces the plasticity of the steel and reduces the process performance and mechanical properties. ,
. . There are two key factors in the heat treatment method of high-speed steel: one is the quenching heating temperature, which determines whether the high-speed steel tool is durable; the other is quenching deformation, part size, shape complexity, and accuracy requirements The grade and the amount of deformation after quenching will affect the processing quality. ,
. . Chemical composition,
. . , r
, , r3
, , r.-
, , r
, ,
＜ , r.3
、 ,
＜ , r
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＜ , r
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＜ , r.3
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< , r.3
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. . Critical point temperature (approximate) ,
. . New
New°C
,
. . Hot working specifications,
. . Start temperature ,
℃, end temperature,
℃. Blank pressing temperature,
℃, material area shrinkage rate, r
. ,
. . Typical application examples,
. . Widely used to make various complex tools. ,
. . Used for cold extrusion molds. ,