Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD OF BORONIZING SINTERED BODIES AND TOOLS FOR COLD FORMING OPERATIONS AND HOLLOW WEAR PARTS WITH BORONIZED SINTERED BODIES
A wear resistant, sintered body (12, 70) is made of a binderless carbide, cermet or cemented carbide, e.g., WC, W2C and/or eta-phase, with a grain size less than 6.0 micrometers, and less than 6% binder phase (e.g., Co-Ni-Fe). At least some working surfaces (42, 86) of the sintered body (12, 70) are surface treated (130) with a boron yielding method including applying (132) a low viscosity liquid medium having boron or aluminum content and heating (134) at 1200 DEG C to 1450 DEG C under a pressure less than atmospheric pressure or a hydrogen containing atmosphere to from a hardness gradient with an increased hardness of the treated working surfaces (42, 86) of at least 50 to 200 HV5 and favorable compressive stresses in a surface zone that gives a tougher working surfaces of the boronized sintered bodies.
耐磨烧结体(12，70)由无粘结相碳化物、金属陶瓷或硬质合金例如WC、W2C和/或η相制成，具有小于6.0μm的晶粒尺寸和小于6％的粘结相(例如Co‑Ni‑Fe)。用产硼方法对所述烧结体(12，70)的至少一些工作面(42，86)进行表面处理(130)，所述产硼方法包括施加(132)具有硼或铝含量的低粘度液体介质，并且在低于大气压的压力下或含氢气的气氛下在1200℃至1450℃下加热(134)以形成处理过的工作面(42，86)的硬度增加至少50至200HV5的硬度梯度以及使得所述硼化烧结体的工作面更坚韧的在表面区域中的有利的压缩应力。
METHOD OF BORONIZING SINTERED BODIES AND TOOLS FOR COLD FORMING OPERATIONS AND HOLLOW WEAR PARTS WITH BORONIZED SINTERED BODIES
A wear resistant, sintered body (12, 70) is made of a binderless carbide, cermet or cemented carbide, e.g., WC, W2C and/or eta-phase, with a grain size less than 6.0 micrometers, and less than 6% binder phase (e.g., Co-Ni-Fe). At least some working surfaces (42, 86) of the sintered body (12, 70) are surface treated (130) with a boron yielding method including applying (132) a low viscosity liquid medium having boron or aluminum content and heating (134) at 1200 DEG C to 1450 DEG C under a pressure less than atmospheric pressure or a hydrogen containing atmosphere to from a hardness gradient with an increased hardness of the treated working surfaces (42, 86) of at least 50 to 200 HV5 and favorable compressive stresses in a surface zone that gives a tougher working surfaces of the boronized sintered bodies.
耐磨烧结体(12，70)由无粘结相碳化物、金属陶瓷或硬质合金例如WC、W2C和/或η相制成，具有小于6.0μm的晶粒尺寸和小于6％的粘结相(例如Co‑Ni‑Fe)。用产硼方法对所述烧结体(12，70)的至少一些工作面(42，86)进行表面处理(130)，所述产硼方法包括施加(132)具有硼或铝含量的低粘度液体介质，并且在低于大气压的压力下或含氢气的气氛下在1200℃至1450℃下加热(134)以形成处理过的工作面(42，86)的硬度增加至少50至200HV5的硬度梯度以及使得所述硼化烧结体的工作面更坚韧的在表面区域中的有利的压缩应力。
METHOD OF BORONIZING SINTERED BODIES AND TOOLS FOR COLD FORMING OPERATIONS AND HOLLOW WEAR PARTS WITH BORONIZED SINTERED BODIES
烧结体硼化的方法和用于冷成型操作的工具及具有硼化烧结体的中空耐磨零件
EDERYD STEFAN SVEN-OLOV (Autor:in)
15.06.2021
Patent
Elektronische Ressource
Chinesisch
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