摘要:
According to prior art, electrolytic methods are used to treat large external surfaces. The invention relates to a method for internally coating the through-holes (7, 7', 7'', 7''', 7'''') of a wall (4), according to which the electrolyte (28) flows through the through-hole (7, 7', 7'', 7''', 7'''') during the treatment and deposits material on the respective inner surface (8, 8', 8'', 8''', 8''''), a single electrode (19) being used for at least two through-holes (7, 7', 7'', 7''', 7'''').
摘要:
Cracks are conventionally difficult to clean which often leads to damage to other regions of the component for cleaning. According to the invention, a plasma cleaning method is used, whereby a pressure (p) and/or a separation (d) of an electrode (10) to the component (1) are varied, in order to achieve a plasma cleaning in the crack (4).
摘要:
The invention relates to a method for integrally bonding parts to be joined (1, 7) that comprise joint areas. Said method consists of the following steps: the joint areas of the parts to be joined (1, 7) are placed together; nanoscalar particles that form a particulate material (11) are introduced into the joint gap (9) between the joint areas; and the particulate material is melted and then re-solidified.
摘要:
For the careful cleaning of partially corroded or oxidized surfaces (9) with fluoride ions, the parts of the surface (8) which are not corroded or oxidized are coated with polymer-based ceramics (polymer derived ceramics) (4) before the start of the cleaning process.
摘要:
Cracks are conventionally difficult to clean which often leads to damage to other regions of the component for cleaning. According to the invention, a plasma cleaning method is used, whereby a pressure (p) and/or a separation (d) of an electrode (10) to the component (1) are varied, in order to achieve a plasma cleaning in the crack (4).
摘要:
The invention relates to a method for removing a layer. Structural components that are contaminated with corrosion products are often reused, therefore the corrosion product (10) has to be removed. Conventional methods for doing so are time-consuming as the reaction times with the corrosion product are often very long. According to the invention, the corrosion product is pretreated by exposing it to salt, thereby producing a larger working surface, so that the corrosion product (10) can be removed more rapidly. Sodium sulfate (Na2SO4) and/or cobalt sulfate (CoSO4) are used for the salt exposure.
摘要:
According to prior art, structural errors in substrates in epitactic crystal growth are often carried over from the substrate on which the new material is to be deposited. This leads to a reduction in mechanical properties. According to the inventive method, an intermediate layer (10) is deposited prior to the deposition of epitactic material. Said intermediate layer prevents structural errors in the substrate (7) from being carried over to the newly filled area (13,16).
摘要:
The invention relates to a method for processing at least two workpieces (7) by means of electrochemical treatment. During the method, the workpieces (7) are provided as working electrodes in an electrolytic treatment solution (3) inside of which a counter-electrode arrangement (9) is assigned to each workpiece (7). One workpiece (7) and the assigned counter-electrode arrangement (9) form an electrolytic processing element. The electrolytic processing elements are connected in series.
摘要:
The lifespan of a layer system at high temperatures is determined by the diffusion of single elements between the substrate and the layers on the substrate. A diffusion inhibiting layer (13) according to the invention with an adapted aluminum content (Ald) which lies between the aluminum content (Al2) of the substrate (4) and the aluminum content (Al1) of the bonding or corrosion protective layer (7) prevents the diffusion of aluminum and raises therefore the lifespan of the layer system.