Year1
- 规格：
- 齐全
- 价格：
- 合理
- 材料：
- 保证
- The steel is carburized plastic mold steel and traditional medium-hardenability alloy carburized steel. The carbon content of this steel is low, and nickel and chromium alloy elements are added to improve the hardenability of the steel and the strength and toughness of the carburized layer. Nickel, in particular, not only produces solid solution strengthening, but also significantly increases the plastic toughness of the steel. The cold formability of this steel is moderate compared to other cold forming plastic mold steels. Normalizing can refine the massive proeutectoid ferrite and improve the machinability of the blank, while high-temperature tempering can reduce the hardness of high-alloy steel.
- Heating at ℃,
- Heat treatment at ℃ and so on
- Obtain granular bainite. Steel's resistive strength
-, yield strength
-, elongation
-, area reduction
-, room temperature impact toughness
/
- Chemical composition
- According to the standard
B/3~
-, the chemical composition (mass fraction) of the steel:
~
-,
~. 3
- ,
3~
- ,
~
- ,
~3
- ,
-
3
-,
-
3
-.
- Reference corresponding grades
- Japan
- Standard grades
-, United States
- Standard grades
-, France
- Standard grades< br/>-, China
- standard grade
-, UK
- standard grade
-, International Organization for Standardization (
-) standard grade
- .
- Critical point temperature (approximate value)
- ℃,
3
- ℃,
r
- ℃,
r3
- ℃,
- ℃.
- Hot processing specifications
- Heating temperature
- ℃, start temperature
- ℃, end temperature
- ℃, slow cooling after hot processing, must be done after hot processing Soft annealing.
- Annealing specifications
- Annealing temperature
~
- ℃, furnace cooling, hardness
-.
- Specifications for softening treatment of cold pressed blanks
- Softening temperature
~
- ℃, insulation
~
-, to
~
-, slow cooling to
- ℃, and then air cooling to room temperature, the hardness is <
-, suitable for cold extrusion molding.
- Normalizing specifications
- Normalizing temperature
~
- ℃, air cooling out of the furnace, hardness
-, good processability.
- Quenching and tempering specifications
- Quenching temperature
- ℃, oil cooling, tempering temperature as required
~
- ℃.
- Specifications for carburizing, quenching and tempering
- Carburizing temperature
~
- ℃ (cooling in the tank), carburizing time depends on the thickness of the carburized layer.
- Quenching ▏: Quenching temperature
- ℃, oil cooling. Quenching
Ⅱ
-: Quenching temperature
~
- ℃, oil cooling, hardness
-.
- Tempering temperature
~
- ℃, surface hardness
~
-, core hardness
~
-.
- Gas carburizing and quenching specifications
- Quenching temperature
~
- ℃, insulation
~
-, available
~< br/>- carburized layer, pre-cooled to
~
- ℃ after carburizing, directly oil-cooled or air-cooled, surface hardness
~
-, core hardness is
~
- , slight deformation.
- Specifications for gas carbonitriding, quenching and tempering
- Carbonitriding temperature
~
- ℃, direct oil quenching after coming out of the furnace, hardness
- . Tempering temperature
~
- ℃, hardness
-.
- Typical application examples
-) This steel is mainly used for cold extrusion molding of complex-shaped shallow cavity plastic molds.
-) can also be used to make large and medium-sized plastic molds for cutting and molding.
-) Can be used for large and medium-sized bakelite molds, working hardness
~
-.
-) High-strength plastic injection mold, working hardness
~
-.
-) Soft plastic injection mold, working hardness
~
-.
-) Molds that are subject to wear, load, and large production batches.
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