摘要:
The invention relates to a method for depositing a coating on a substrate having at least one cavity, comprising: a step of mixing ground powders of an activating agent and a powder of the metal or alloy to be deposited on the substrate, ground in step (a) and a liquid such as to form a suspension; and a step of applying the suspension on part of the substrate to be coated.
摘要:
The invention relates to a method for depositing an anti-corrosion coating on at least some of the surfaces of a metal substrate having at least one cavity with a diameter of e mm mm /10.
摘要:
A method for producing an element comprising a multilayer architecture of which the layers comprise primary channels on the upper faces thereof, said method comprising the following successive steps: (a) producing secondary channels (2) on the lower faces of each layer, each secondary channel (2) being intended to face a primary channel of the adjacent lower layer within the architecture, (b) depositing a coating protecting against oxidation at a temperature of between 500 and 1000°C and against corrosion on all of the lower and upper surfaces of the layers, (c) mechanically sanding or etching the surfaces that are to be assembled, and (d) assembling the various layers by stacking in such a way that each secondary channel (2) of a lower face of an upper layer is facing and is centred on a primary channel (1) of the adjacent lower layer, the width of each secondary channel (2) being greater than the width of the primary channel (1) that it is facing within the architecture.
摘要:
The invention relates to the use of a cement in a method for pack-cementation deposition on a substrate containing cavities having a minimum equivalent diameter e cm , characterised in that the cement is formed by spherical particles each having a diameter d such that d ≤ e cm /10.
摘要:
The invention relates to a method for manufacturing a part (1) coated with a protective coating (2) comprising the following step: - formation of a protective coating (2) across all or part of the surface (S) of a part (1), wherein the part (1) comprises a refractory alloy comprising a niobium matrix containing metal silicide inclusions, wherein the protective coating (2) is formed by means of a pack carburization method from a cement (11) comprising: i. a mixture A of (Nb x Ti 1-x ) 3 M 3 CrSi 6 and M 0,6 Cr 0,4 Si where M denotes Fe, Co or Ni and x is between 0 and 1, or ii. a mixture B of M'Si, NbSi 2 and Nb 4 M' 4 Si 7 where M' denotes Fe, Co or Ni.
摘要翻译:本发明涉及一种制造涂覆有保护涂层(2)的部件(1)的方法,其包括以下步骤: - 在部件(1)的全部或部分表面(S)上形成保护涂层(2) ),其中所述部件(1)包括耐火合金,所述耐热合金包含含有金属硅化物夹杂物的铌基体,其中所述保护涂层(2)通过包装渗碳方法由水泥(11)形成,所述水泥(11)包含:i。 (Nb x Ti 1-x)3M 3CrSi 6和M 0,6Cr 0,4 Si的混合物A,其中M表示Fe,Co或Ni且x在0和1之间,或ii。 M'Si,NbSi 2和Nb 4 M'4 Si 7的混合物B,其中M'表示Fe,Co或Ni。