保定市U型槽模具厂

塑料模具的制造工艺路线

Manufacturing process of plastic mold

1.低碳钢及低碳合金钢制模具

1. mould for low carbon steel and low carbon alloy steel

例如，20，20Cr，20CrMnTi等钢的工艺路线为：下料→锻造模坯→退火→机械粗加工→冷挤压成形→再结晶退火→机械精加工→渗碳→淬火、回火→研磨抛光→装配。

For example, the process of 20, 20Cr, 20CrMnTi steel is: blanking forging die blank annealing mechanical roughing cold extrusion forming recrystallization annealing mechanical finishing carburizing quenching, tempering grinding and polishing assembly.

2.高合金渗碳钢制模具

2. high alloy carburizing steel mold

例如12CrNi3A，12CrNi4A钢的工艺路线为：下料→锻造模坯→正火并高温回火→机械粗加工→高温回火→精加工→渗碳→淬火、回火→研磨抛光→装配。

For example, the process of 12CrNi3A, 12CrNi4A steel is: blanking forging die blank normalizing and high temperature tempering mechanical roughing high temperature tempering finishing carburizing quenching, tempering grinding and polishing assembly.

3.调质钢制模具

3. quenched and tempered steel mold

例如，45，40Cr等钢的工艺路线为：下料→锻造模坯→退火→机械粗加工→调质→机械精加工→修整、抛光→装配。

For example, the process of 45,40Cr steel is: blanking forging die blank annealing mechanical roughing tempering mechanical finishing dressing, polishing assembly.

4.碳素工具钢及合金工具钢制模具

4. mould for carbon tool steel and alloy tool steel

例如T7A～T10A，CrWMn，9SiCr等钢的工艺路线为：下料→锻成模坯→球化退火→机械粗加工→去应力退火→机械半精加工→机械精加工→淬火、回火→研磨抛光→装配。

For example, the process of T7A-T10A, CrWMn, 9SiCr steel is: blanking forging die blank spheroidizing annealing rough machining stress relief annealing mechanical semi-finishing hardening, tempering grinding and polishing assembly.

5.预硬钢制模具

5. pre hardened steel mold

例如5NiSiCa，3Cr2Mo（P20）等钢。对于直接使用棒料加工的，因供货状态已进行了预硬化处理，可直接加工成形后抛光、装配。对于要改锻成坯料后再加工成形的，其工艺路线为：下料→改锻→球化退火→刨或铣六面→预硬处理（34～42HRC）→机械粗加工→去应力退火→机械精加工→抛光→装配。

For example, 5NiSiCa, 3Cr2Mo (P20) and other steel. For the direct use of bar processing, due to the state of supply has been pre-hardened, can be directly processed after polishing, assembly. For those who want to be forged into billets and then processed and formed, the technological route is: blanking forging spheroidizing annealing planer or milling six faces Pre-hardening (34 ~ 42 HRC) mechanical roughing stress relieving annealing mechanical finishing polishing assembly.