HIP支持金属注射成型(MIM)行业

观看视频: 锤头的均匀快速淬火

HIP支持金属注射成型行业

数十年来,热等静压(HIP)技术已被世界各地的制造商成功应用,以提高生产效率。HIP可清除孔隙和缺陷(如氧化物和碳化物),大大提高材料的性能。

通过400 至2,070 bar (5,800 到30,000 psi) 的典型压力和高达2000 摄氏度的温度,HIP 可以100%地实现最大的理论密度,并提高关键的、高性能材料的延展性和耐疲劳性。对于MIM 零部件而言,在进行烧结处理之后,不管采用哪种脱脂烧结方法,都能从热等静压技术中受益匪浅。

适用于金属注射成型(MIM)零部件的可靠工艺

热等静压技术的常见应用包括MIM零部件的缺陷修复(孔隙清除)、金属粉末的固结、不同类型金属或者合金的扩散粘结。这项技术也可以扩展到枪械等的新应用范围和热处理应用。

Quintus Technologies High Pressure Heat Treatment and MIM Industry
sample body assembly perfected on Quintus HIP
枪体组件
Sample Sports Watch MIM part perfected on Quintus HIP
运动表壳
Trigger Guard Part perfected on Quintus HIP
扳机护圈
Open center impeller MIM part perfected on Quintus HIP
开放式中心叶轮
Handcuff parts perfected on Quintus press
手铐部件
Gun Safety lock parts post processed on Quintus HIP
枪安全锁部件

所有图片的来源: MPIF

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热处理和HIP可同时进行

Quintus的均匀快速冷却(URC®)和作为选项的均匀快速淬火(URQ®)功能,能够减少生产周期时间,提高生产效率,并具有独特的HIP周期(包括热处理)。其他的优点还包括减少能量消耗,并可为后续的生产步骤如机械加工、抛光等准备材料。

当达到一定的应力水平和周期次数时,材料会产生疲劳寿命问题。材料內部孔隙的清除可以使疲劳寿命得到明显改善。在适当的条件下,通过热等静压技术可以使疲劳寿命提高达10倍。

后热处理
通过合适的HIP应用,可以省略类似于应力消除的后热处理步骤,也可以缩短50%的总生产周期时间。

适用于增材制造零部件的可靠工艺
热等静压技术的常见应用包括增材制造零部件的缺陷修复(孔隙清除),钛粉末的烧结,不同类型金属或者合金的扩散粘结。这项技术也可以扩展到航空航天的新应用范围和热处理应用。

改进航空航天工业的零部件生产
在世界上所有的HIP设备中,超过50%是用来加强和提高应用于航空航天工业中的钛和超级合金材料的特性。如今,HIP技术已成为业界的标准工艺步骤,能够让飞机引擎的风机叶片获得更长及可预测的使用寿命。

不管合金系统或者3D打印方法 (EBM,SLM等)是什么,HIP都可以优化材料性能和节约成本,是安全、高效和优质的生产工艺。

Quintus Technologies unique variable cooling and heating rates allow for control quality of mechanical properties

U2RC – 均匀超快速冷却(不同的压力)

通过可变的冷却速率、加热速率和压力水平,对处理过的零部件就可以精确地控制它们的质量和机械性能。

Chart shows High Pressure Heat Treatment improves mechanical defects of Aerospace parts

改进航空航天工业的零部件生产

图片来源: Bodycote

为什么您应该选择HIP

选择HIP的原因

100% 的理论密度

  • 更长的使用寿命
  • 可预测的使用寿命
  • 减重和/ 或轻量化设计

提高材料性能

  • 提高机械性能,如疲劳、磨损、磨耗和延展性
  • 降低材料机械性能的散射
  • MIM零部件的应力消除

生产更高效(与传统制造手段相比)

  • MIM结合HIP可以降低高达50%的能耗
  • MIM结合HIP可以降低高达90%的材料费用

HIP扩展到包括以下的新应用:

  • 汽车和航空航天
  • 大容量的热等静压技术
  • 通过淬火进行材料的热处理
  • 通过温度和压力进行应力释放
  • 各类MIM部件,应用于枪械、手表、汽车、消费电子等方面
MIM gun revolver parts made on Quintus HIP

左轮手枪的MIM零部件
图片来源: MPIF

HIP的淬火功能

通过压力和温度控制的可行性组合,URQ可以实现高达3000摄氏度/分钟的控制冷却速率,并提供如下功能:

  • 热处理步骤可被包括在HIP周期内
  • 缩短生产周期時间
  • 可以从常规工艺步骤中取消部分热处理工艺(如应力释放),以提高生产效率和降低成本

与常规热处理方法相比的优点:

  • 具有良好精度的可编程温度分布
  • 由于减少了热应力,可以消除变形现象
  • 淬火后不需要清洗或干燥零部件
  • 减少开裂现象

可以产生新的、独特的材料:

  • 可以优化材料性能
  • 改进材料的疲劳强度和延展性
  • 非浇注料合金成分

常见的应用包括:

  • MIM零部件的缺陷修复(孔隙清除)
  • 粉末金属和陶瓷零部件的烧结
  • 扩散粘结

锤头的均匀快速淬火 – 500攝氏度/分钟

Quintus Uniform Rapid Quenching technology of a hammerhead at 500C/min

由于高压力,HIP淬火可以避免热应力、零部件的翘曲或开裂(与油和/或水淬火比较)。

及时的技术支持

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