W18Cr4V is a high hardness, high performance high-speed steel material, but many people do not fully understand the performance, resulting in many occasions and can not correctly consider the importance of the selection of the material, today let the Long top metal technical customer service Xiao Li to explain the main use of W18Cr4V high-speed steel.
First of all, W18Cr4V is definitely suitable for cold extrusion punches, heavy duty cold heading punches, medium and thick (10~25mm) steel plate punching punches, small punches with a diameter of <5~6mm.
W18Cr4V high speed steel can also be used for various punch austenitic steel, spring steel, high strength steel, medium and small punches.
W18Cr4V is used to make cold extrusion punch of steel parts, and the hardness is 62~64HRC.
W18Cr4V is used to make the convex and concave dies in the extrusion die whose extrusion temperature is >400℃, and the hardness is 60~62HRC and 62~64HRC respectively.
W18Cr4V is used to make the punch of stainless steel drawing die, requiring a hardness of 62~64HRC.
W18Cr4V is used to make cold extrusion die for aluminum parts, punch hardness is recommended to choose 60~62HRC, die hardness is recommended to choose 62~64HRC.
W18Cr4V for the production of copper cold pressure die punch, recommended hardness 62~64HRC.
W18Cr4V is made of Cr6WV, Cr12MoV die steel, Cr12 die steel and other steel punch, the hardness is 61~66HRC, its service life is only tens of, it shows the fracture failure after upsetting, after the use of W18Cr4V high-speed steel punch, its service life is higher than 3000 times.
W18Cr4V powder metallurgy die and a variety of small high service life cold punching and cutting tools.
W18Cr4V can be used to make molds and tools working at ≦600℃.
W18Cr4V cold heading M10~M24 nut five processes punching needle, low service life, using the strength and toughening heat treatment specification, each punching needle can punch more than 13,000 pieces.
W18Cr4V is used to make the punching rod with the same zinc of the punching battery, using the conventional quenching and tempering process, each punching rod can only be punched 20,000 times, and after using the low-temperature quenching + tempering + gas nitrogen carburizing process, the single head can be punched more than 60,000, and the double head can be punched more than 10, which improves the service life of the punching rod treated by the conventional process 3 to 5 times.
W18Cr4V cold extrusion punch adopts high temperature quenching isothermal + high temperature tempering specification, the service life of the mold has increased to more than 30,000 pieces in the past.
W18Cr4V cold extrusion starter gear die, using bainite isothermal quenching, the service life of the die from hundreds to thousands of pieces.
W18Cr4V cold extrusion punch at 1280℃, isothermal in 260℃ salt for 4h, then air cooling, and normal tempering three times. Punch hardness is 62~64HRC, bainite 55% (volume fraction), martensite 35% (volume fraction). Punch life can be increased by 1~2 times.
W18Cr4V low temperature quenching + high temperature tempering is used for heat treatment of 12000kW generator magnetic yoke square push knife. The mold section size (45mm×70mm) ~(45mm×70mm), length 320~600mm, hardness of cutting part 60~64HRC, length of guiding part 80~100mm, Hardness 40~45HRC. During the quenching process, the guide part faces up when preheating, and the whole workpiece is invaded into the salt bath, and the guide part is exposed to the salt bath when quenching heating.
W18Cr4V is used for high speed heat and wear-resistant cutting tools, molds and rolls.
W18Cr4V is used for integral hardened plastic molds.
After carburizing quenching treatment, the mass fraction of carbon on the surface of the W18Cr4V die increases to 0.9%~1.0%, and the service life is twice as long as that of the die without carburizing treatment.
