Do you know the carburization of HSS? Die steel manufacturers tell you

To resolve the contradiction. cr12mov mold steel carburization is generally divided into two stages: the infiltration stage and diffusion stage, the furnace carbon potential is maintained at a lower level, but the temperature can be slightly increased, generally selected in the lower limit of the normal quenching temperature of the steel grade, such as M2 steel, can be selected 1180 ~ 1150 ℃, after diffusion directly quenched.

Through the above carburizing → diffusion → quenching → tempering, choose the right mold steel h13 carburizing temperature, carburizing time and carburizing potential, you can get a hard and wear-resistant surface layer and red hard, tough heart, which is good for most of the mold and some simple tools are very good external hard internal toughness fit.

The results show that: mold steel 4cr13 long-term diffusion treatment and multiple tempering can avoid the surface residual excessive austenite, resulting in inadequate tempering, hardness is instead lower than the heart part. More ideal surface hardness distribution, higher hardness and smooth decline; full carburizing hardening layer depth of 1mm, of which 66HRC depth is greater than 0.5mm; the heart part of the secondary hardening by low temperature quenching, normal tempering, processing 62 ~ 63HRC.

Using W6Mo5Cr4V2 steel carburizing method for refrigeration nut hexagonal set die, solid carburizing 1066℃, box air cooling quenching, 554℃×2.5h×2 times tempering, cooling and tempering life 2.4 million pieces, 2.4 times of traditional HSS quenching and tempering die, 6.8 times of steel die.

When quoting, it is recommended to check whether the following items are needed: Ejector plate guide pillar. Linear hardening. Plating water delivery hole. Plating cavity.

Thirty-three die steel

A detailed drawing of the die structure is required.

Die blanks of low hardness 165BHN.(1 steel/1040 steel, DME#)

Inner die steel is P20 type (28~32HRC) or high hardness type (36~38HRC).

Other requirements will be determined as needed.