摘要:
An object of the invention is to provide an inexpensive automotive member and feed oil pipe, exhibiting excellent salt corrosion resistance. An automotive member or a feed oil pipe includes: a member made of a ferritic stainless steel containing, in mass%, at most 0.015% of C, at most 0.015% of N, 10.5% to 18.0% of Cr, 0.01% to 0.80% of Si, 0.01% to 0.80% of Mn, at most 0.050% of P, at most 0.010% of S, 0.010% to 0.100% of Al, and one or both of 0.03% to 0.30% of Ti and Nb; a metal fitting made of an aluminized stainless steel sheet, the metal fitting being attached to the member; and a gap structure defined between the member and the metal fitting, the gap structure being exposed to a chloride environment, where the metal fitting has an Al-plating weight per unit area of 20 g/m 2 or more and 150 g/m 2 or less on a surface corresponding to a gap of the gap structure, and surfaces of the metal fitting and the non-aluminized member other than the gap are coated with a cation electrodeposition coating film having a thickness of 5 µm to 35 µm.
摘要翻译:本发明的目的是提供一种廉价的汽车构件和给油管,其具有优异的耐盐腐蚀性。 汽车部件或进料油管包括:铁素体系不锈钢构件,其以质量%计至多为0.015%C,最多为0.015%N,10.5%至18.0%的Cr,0.01%至0.80 ,Si:0.01〜0.80%,P:0.050%以下,S:0.010%以下,Al:0.010〜0.100%,Ti:Nb:0.03〜0.30% 由镀铝不锈钢板制成的金属配件,所述金属配件附接到所述构件; 以及在所述构件和所述金属配件之间限定的间隙结构,所述间隙结构暴露于氯化物环境中,其中所述金属配件的每单位面积的镀铝重量为20g / m 2以上且150g / m 2 以下,与间隙结构的间隙对应的表面,除了间隙以外的金属配件和非镀铝部件的表面涂覆有厚度为5μm〜35μm的阳离子电沉积涂膜。
摘要:
According to various embodiments, a system includes a turbine engine component (212) that includes a first material having a surface (215) exposed to a fluid flow path and a sacrificial anode layer (252,254) disposed on the surface (215). The sacrificial anode layer (252,254) includes a second material that is electrochemically more active than the first material and the second material is configured to preferentially corrode to protect the first material from corrosion.
摘要:
L'invention se rapporte à une structure comprenant au moins une surface métallique (3) soumise à une protection cathodique et un revêtement protecteur (1) de ladite surface, ledit revêtement comprenant un polymère incluant des micro-capsules (2) contenant des composés sensibles au champ électrique généré par la protection cathodique et susceptibles de réagir en milieu alcalin pour former une couche protectrice sur la surface de la structure lorsque celle-ci est directement en contact avec un milieu corrosif. L'invention concerne également le revêtement associé à ladite structure.
摘要:
Cathodic protection of a structure including a steel member at least partly buried in a covering layer, such as steel rebar in a concrete structure, is provided by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting the anodes to the rebar. The anode body is formed, by pressing together finely divided powder, flakes or fibers of a sacrificial anode material such as zinc to define a porous body having pores therein. The sacrificial anode material of the anode member is directly in contact with the covering material by being buried or inserted as a tight fit into a drilled hole so that any expansion forces therefrom would be applied to the concrete with the potential of causing cracking. The pores are arranged however such that corrosion products from corrosion of the anode body are received into the pores sufficiently to prevent expansion of the anode body to an extent which would cause cracking of the covering material.
摘要:
Die Erfindung betrifft eine Betonstruktur, die eine Schicht Stahlbeton mit einer darin eingebetteten, elektrisch leitfähigen Armierung und einer darauf angeordneten Klebstoffschicht mit einem darin eingebetteten, elektrisch leitfähigen Gewebe aufweist und welche dadurch gekennzeichnet ist, dass das elektrisch leitfähige Gewebe und die Armierung einander nicht direkt kontaktieren und dass ausserdem zwischen dem elektrisch leitfähigen Gewebe und der Armierung ein elektrisches Potential angelegt ist. Ausserdem bezieht sich die Erfindung auf Bauwerke und eine Vorrichtung oder Anordnung zum kathodischen Korrosionsschutz bei gleichzeitiger Verstärkung besagter Bauwerke, deren zentrales Element jeweils eine solche Betonstruktur ist. Ferner werden ein Verfahren zum kathodischen Korrosionsschutz bei gleichzeitiger Verstärkung von Bauwerken und ein Verfahren zur Sanierung von Bauwerken zur Verfügung gestellt, welche jeweils dadurch gekennzeichnet sind, dass man in oder an diesen Bauwerken eine solche Betonstruktur vorsieht oder eine solche Betonstruktur nachträglich einrichtet.
摘要:
Apparatus, compositions and methods provide cathodic protection to a structure by placing an anode layer (10) directly between the structure (22) and its underlying foundation (30). Structures contemplated to be protected in this manner include especially very large structures such as above ground storage tanks. In one aspect of preferred embodiments, the anode layer (10) comprises sheets of at least 85 % aluminum with other alloying elements such as magnesium (0.05 to 6 %), zinc (0.1 to 8 %), indium (0.005 to 0.03 %) and tin (0.05 to 0.2 %) added for the purposes of optimizing current yield, polarization and ease of manufacturing the sheet. In another aspect of preferred embodiments, the anode layer (10) comprises at least two overlapping sheets.