摘要:
Vorgeschlagen wird ein Verfahren zur Herstellung von Zylinderköpfen (1) für Verbrennungsmotoren aus im Kokillenguss geformten Al-Si-Legierungen. Mindestens eine thermisch und/oder mechanisch besonders beanspruchte Materialzone (10) des Gussteils wird einer die Gefügestruktur beeinflussenden Nachbehandlung unterzogen. Zur Steigerung der Gefügefeinheit in der Materialzone (10) wird diese durch Reibrühren mittels eines rotierenden Stiftes (16) behandelt, der quer zu seiner Rotationsachse durch die Materialzone (10) hindurch bewegt wird.
摘要:
A sliding device 1 is constituted of a swash plate 3 including a first sliding surface 3A and a semispherical shoe 4 sliding with the swash plate 3. The swash plate 3 is constituted of a base material 3B of high strength brass containing Mn and Si, and very small granular Mn-Si compounds 6 are exposed on an inside of the base material 3B and on the first sliding surface 3A (surface of the base material 3B). The above described swash plate 3 increases in exposure amount of the Mn-Si compounds 6 exposed on the first sliding surface 3A being the surface by applying etching to the base material 3B after cutting the base material 3B. The sliding device 1 which is favorable in seizure resistance at low manufacturing cost as compared with the conventional sliding devices can be provided.
摘要:
An aqueous phosphoric bonding solution consists essentially of phosphoric acid, a source of magnesium ions, and a leachable corrosion inhibitor. The bonding solution is stable with respect to inorganic metal particles, such as aluminum, which are admixed to the bonding solution for the preparation of a coating slurry. Metal parts coated with the coating compositions have very satisfactory properties such as heat and corrosion resistance.
摘要:
The present invention employs an optimized cross-sectional shape for a ferromagnetic shape memory alloy (FSMA) composite that is used in a spring-type actuator, an improved hybrid magnetic trigger for use in FSMA based actuators, an a FSMA composite based spring type actuator, an a FSMA based spring type actuator including a stack of triggering units and FSMA springs, a FSMA composite based torque actuator. The invention also includes a model that can be employed to evaluate different materials being considered as components a FSMA for a FSMA composite used in either a FSMA based torque actuator or a FSMA spring actuator.
摘要:
A sliding device 1 is constituted of a swash plate 3 including a first sliding surface 3A and a semispherical shoe 4 sliding with the swash plate 3. The swash plate 3 is constituted of a base material 3B of high strength brass containing Mn and Si, and very small granular Mn-Si compounds 6 are exposed on an inside of the base material 3B and on the first sliding surface 3A (surface of the base material 3B). The above described swash plate 3 increases in exposure amount of the Mn-Si compounds 6 exposed on the first sliding surface 3A being the surface by applying etching to the base material 3B after cutting the base material 3B. The sliding device 1 which is favorable in seizure resistance at low manufacturing cost as compared with the conventional sliding devices can be provided.
摘要:
The present invention employs an optimized cross-sectional shape for a ferromagnetic shape memory alloy (FSMA) composite that is used in a spring-type actuator, an improved hybrid magnetic trigger for use in FSMA based actuators, an a FSMA composite based spring type actuator, an a FSMA based spring type actuator including a stack of triggering units and FSMA springs, a FSMA composite based torque actuator. The invention also includes a model that can be employed to evaluate different materials being considered as components a FSMA for a FSMA composite used in either a FSMA based torque actuator or a FSMA spring actuator.
摘要:
A piston for diesel engines is made of a toughness-increasing aluminium alloy containing copper, nickel, silicon, magnesium, iron and manganese. The use of this material, which can conventionally be chill-cast, and by applying special dimensions, provides a piston which, despite its relatively light construction, provides the utmost security against cracking in the stressed regions, e.g. the piston boss or the combustion chamber recess.
摘要:
A piston for diesel engines is made of a toughness-increasing aluminium alloy containing copper, nickel, silicon, magnesium, iron and manganese. The use of this material, which can conventionally be chill-cast, and by applying special dimensions, provides a piston which, despite its relatively light construction, provides the utmost security against cracking in the stressed regions, e.g. the piston boss or the combustion chamber recess.