The present invention is directed mainly towards a process for the surface treatment of metal substrates comprising the steps of: (i) providing a metal substrate comprising surface hydroxyl groups (ii) bringing the metal substrate into contact with a solution of at least one organophosphorus compound so as to allow ...

The invention relates to steel the composition of which is in wt%: 10.0% ??? Ni ??? 24.5% 1.0% ??? Mo ??? 12.0% 1.0% ??? Co ??? 18.0% 14.0% ??? Mo + Co + Si + Mn + Cu + W + V + Nb + Zr + Y + Ta + Cr + C + Al + B + Ti + N ??? 29.0% 21.5% ??? Ni + Co + Mo ??? 40.0% traces ??? Al ??? 4.0% traces ??? Ti ??? 0.1% traces ...

The invention relates to a metal strip (1) or sheet including a substrate (3) made of stainless steel coated with at least one chromium nitride coating layer (5). The chromium nitride coating layer (5) is textured.

The invention relates to a method for manufacturing a metal strip or sheet which includes: providing a substrate (3) made of stainless steel; and depositing a layer of chromium nitride onto the substrate (3) by physical vapour deposition (PVD) in a deposition facility (14) including a deposition chamber (20) and a c...

The invention relates to a basic module of a magnetic core of a wound electrical transformer. Said basic module is characterized in that it consists of a first (1 2) and second (3 4) winding that are placed one on top of the other and made of a first and second material respectively. Said first material is a crystal...

The invention relates to a method for the manufacture of a strip having a variable thickness along the length thereof wherein said method comprises the following steps: uniform cold rolling of the initial strip along the length thereof to obtain an intermediate strip having a constant thickness in the direction o...

The invention concerns an alloy made from iron comprising by weight: 35% = Ni = 37%; traces = Mn = 0.6%; traces = C = 0.07%; traces = Si = 0.35%; traces = Cr = 0.5%; traces = Co = 0.5%; traces = Mo < 0.5%; traces = S = 0.0035%; traces = O = 0.0025%; 0.011% = [(3.138 x Al + 6 x Mg + 13.418 x Ca)  (3.509 x O + 1.770 x...

The invention relates to a martensitic stainless steel characterised in that its composition consists of by weight percent: 0.10% = C = 0.45%; traces = Mn = 1.0%; traces = Si = 1.0%; traces = S = 0.01 %; traces = P = 0.04%; 15.0% = Cr = 18.0%; traces = Ni = 0.50%; traces = Mo = 0.50%; traces = Cu = 0.50%; traces = V...

The invention relates to an induction-heated mold, including at least one lower portion and one upper portion defining a cavity inside of which a molding material is to be brought to a temperature Ttr greater than 20°C, which is introduced and then shaped, at least one of the mold portions having an area for tran...

Process for manufacturing a strip made of soft magnetic alloy capable of being cut mechanically the chemical composition of which comprises by weight: 18% = Co = 55%; 0% = V + W = 3%; 0% = Cr = 3%; 0% = Si = 3%; 0% = Nb = 0.5%; 0% = B = 0.05%; 0% = C = 0.1%; 0% = Zr + Ta = 0.5%; 0% = Ni = 5%; 0% = Mn = 2% the remain...

This method for manufacturing a magnetic part (15, 17) of a high-sensitivity differential relay (5) comprises a surface treatment step by shot-peening at least one portion of a surface of said magnetic part (15, 17). The surface treatment step by shot-peening comprises projecting pressurized microbeads on said surfa...

The invention relates to a steel part including a supporting part (1) and a portion (17) formed by a solder (2; 7) in the form of molten metal (5; 12) on the supporting part (1) forming a heat affected zone (HAZ) (6) thereof and a molten area (21) between the HAZ (6) and the portion (17) formed by the addition of mo...

The invention relates to a cold-rolled, annealed ferrous alloy sheet or strip (1), characterised in that it consists of (by weight percentage): traces ≤ Co ≤ 40%; if Co ≥ 35%, traces ≤ Si ≤ 1.0%; if traces ≤ Co < 35%, traces ≤ Si ≤ 3.5%; if traces ≤ Co < 35%, Si + 0.6 %Al ≤ 4.5 – 0.1 %Co; traces ≤ Cr ≤ 10%; traces ≤...

The invention concerns a welding wire intended to be used for welding together portions of parts made from Fe 36Ni alloy. This welding wire is made from an alloy comprising in % by weight: 38.6% = Ni+Co = 45.0%; traces = Co = 0.50%; 2.25% = Ti+Nb = 0.8667 x (Ni+Co)  31.20% if 38.6% = Ni+Co = 40.33%; 2.25% = Ti+Nb = ...

The invention mainly relates to a stainless steel sheet containing a minimum of 10.5% by weight of Cr and a maximum of 1.2% by weight of C, the microstructure of which is martensitic or austeno-martensitic and comprises at least 2% by volume of martensite, essentially characterized in that it comprises at least one ...

Process for manufacturing a martensitic stainless steel part according to which a stainless steel sheet is prepared having the composition: 0.005% = C = 0.3%; 0.2% = Mn = 2.0%; traces = Si = 1.0%; traces = S = 0.01%; traces = P = 0.04%; 10.5% =Cr = 7.0%; traces = Ni = 4.0%; traces = Mo = 2.0%; Mo + 2 x W = 2.0%; tra...

The present application describes a method for stripping a moving metal product (3) having a layer of oxides, using laser stripping, which comprises the following steps: at least a first laser (6) sends a beam (7) which is reflected on the oxidised surface of the product (3) to be stripped, said reflected beams (9) ...

Transformer core (49; 59) including two stacks (53 57; 60 61) each having a first thickness (ep1) said stacks (53 57; 60 61) each consisting of one or more flat pieces the cutting directions of which are rectilinear and either parallel or perpendicular to one another said stacks (53 57; 60 61) facing and including a...

Disclosed is a method for producing an iridescent visual effect on the surface of a part (1), in which method a laser beam (7) having a pulse duration of less than a nanosecond is sent onto said surface in the optical field of the focusing system (12) of a device comprising a laser source (6), a scanner (11) and sai...

Method for recovering Cr from a bath for pickling metallic materials (1), the bath (1) being an aqueous solution containing at least one sulphate and Cr from the pickled metal, the method comprising the steps of: - forming an aqueous two-phase system from at least one portion of the pickling bath (1) and a polymer c...

The invention relates to steel characterized in that the composition thereof in wt% is: 0.0% = Ni = 24.5% 1.0% = Mo = 12.0% 1.0% = Co = 25.0% 20.0% = Mo + Co + Si + Mn + Cu + W + V + Nb + Zr + Ta + Cr + C = 29.0 Co + Mo = 20.0% Ni + Co + Mo = 29% traces = Al = 4.0% traces = Ti = 0.1% traces = N = 0.0050% traces = Si...

The invention relates to a rolled stainless steel object characterized in that the surface thereof has a raised and indented pattern comprising a random juxtaposition of at least two types of polygons (4). Each of said polygons (4) has at least three sides a surface area of between 1 and 9 mm2 and a difference betwe...

Method for welding two 0.10 to 6.0 mm thick steel sheets having the following composition: 0.005 % ≤ C ≤ 0.3 %; 0.2 % ≤ Mn ≤ 2.0 %; traces ≤ Si ≤ 1.0 %; traces ≤ S ≤ 0.01 %; traces ≤ P ≤ 0.04 %; 10.5 % ≤ Cr ≤ 17.0 %; traces ≤ Ni ≤ 4.0 %; traces ≤ Mo ≤ 2.0 %; Mo + 2 x W ≤ 2.0 %; traces ≤ Cu ≤ 3 %; traces ≤ Ti ≤ 0.5 %...

The invention relates to a method for creating an iridescent effect on the surface of a part (1). In said method, laser beams (9) having a pulse duration of less than a nanosecond are sent onto said surface in the juxtaposed optical fields of the focusing systems (14) of at least two fixed devices, or in the field o...

The invention relates to an iron-manganese alloy, comprising in weight percent: 25.0% ≤ Mn ≤ 32.0%, 7.0% ≤Cr ≤ 14.0%, 0 ≤ Ni ≤ 2.5%, 0.05% ≤ N ≤ 0.30%, 0.1 ≤ Si ≤ 0.5%, optionally 0.010% ≤ rare earths ≤ 0.14%, the remainder being iron and residual elements resulting from the production.

The method comprises determining an energy density threshold of removal of the oxide layer from a section of the product (3), this comprising transmitting, to a segment of the section, analysis pulses of wavelength and of pulse duration equal to those of the stripping lasers (13) to form a stripped region, capturing...

Disclosed is an austenitic stainless steel characterized in that the composition thereof, in weight percentages, consists of: traces = C = 0.03%; 1.0% = Mn = 2.0%; 0.8% = Si = 2.0%; preferably 1.0% = Si = 1.5%; traces = Al = 0.06%; traces = P = 0.045%; traces = S = 0.015%; 8.0% = Ni = 12.0%; 17.5% = Cr = 20.0%; 0.4%...

The invention relates to a substantially equiatomic FeCo-alloy cold-rolled strip or sheet, and to a magnetic part cut from same, as well as to a method for fabricating a FeCo-alloy cold-rolled strip or sheet. A fully recrystallised hot-rolled sheet or strip is prepared, with a thickness of 1.5 - 2.5 mm and the follo...

The invention relates to an alloy having the following composition by weight: 16.5% = Cr = 25.0%; 11.0% = Mo = 18.0%; 2.0% = W = 7.0%; Fe = 1.0%; Mo+W = - 0.5 x (Cr+Fe) + 30%; Mo+W = - 0.5 x (Cr+Fe) + 25%; Ti+Ta = 0.80%; 0.01% = Si = 0.75%; 0.01% = Al = 0.35%; 0.01% = Mn = 0.35%; Ca = 0.005%; M...

The invention relates to an iron-nickel alloy having the following composition in percent by weight: 36.5% = Ni = 38.5%; 0.50% = Mn = 1.25%; 0.001% = Cu = 0.85%; 0.040% = C = 0.150%; 0.10% = Si = 0.35%, the remainder being iron and inevitable impurities resulting from the production.

The invention relates to an alloy for manufacturing a tool intended for manufacturing aeronautical parts made of composite material, the alloy comprising, by weight : 32.6% = Ni = 38.0%, 0.80% = Co = 4.20%, with: Co = -1.00 x Ni% + 36.80%, where Ni% denotes the Ni content in weight percent in the alloy; and Co = -1....

The invention relates to a facility (5) for treating a moving elongate product (3) made of metal having a surface coated with a layer of oxide, the facility comprising a stripping assembly (7) comprising a group (11, 11a, 11b) of lasers (13) that are distributed around the elongate product (3), a control unit (9) fo...

The invention relates to a ferritic stainless steel sheet, the composition of which comprises, the contents being expressed by weight: C = 0.03% 0.25% = Mn = 1%, preferably 0.3% = Mn = 0.5% 0% < Si = 0.20%, preferably Si = 0.15% with Mn/Si = 1.2 S = 0.005% P = 0.04% 19.0% = Cr = 24.0% Ni = 0.5% Mo = 0.10% N = 0.03% ...