摘要:
A method for electroplating aluminum metal on a magnesium alloy includes providing an Lewis acidic ionic liquid having dissolved species of an aluminum metal salt; pre-treating a surface of the magnesium alloy including subjecting the surface of the magnesium alloy to a reverse current etching in the ionic liquid; electroplating the aluminum metal on the surface using the ionic liquid as the electrolyte; and subjecting the surface of the magnesium alloy to a post-treatment including neutralization rinsing in a rinsing solvent solution.
摘要:
A slide member (4) provided with an Al-based alloy layer (1) including Si and having a first contoured surface having first planar surfaces and first convexities consisting of Si particles protruding from the first planar surfaces; an intermediate layer (2) that coats the Al-based alloy layer; an overlay (3) that coats the intermediate layer; wherein 90% or more of the Si particles protruding from the first planar surfaces are configured to have a predetermined particle diameter of 2 µm or less, the Si particles having the predetermined particle diameter being distributed in the Al-based alloy layer with a distance between centers of gravity of the Si particles having the predetermined particle diameter averaging 6 µm or less, and wherein the overlay has a second contoured surface having second planar surfaces and second convexities conforming with the first planar surfaces and the first convexities of the first contoured surface.
摘要:
The invention concerns a method for electrolytic coating of materials with aluminium, magnesium or aluminium and magnesium alloys. Said method is characterized in that the material is pretreated by being immersed in an electrolytic solution, wherein it is anodized, the electrolytic coating being performed immediately after in the same electrolytic solution.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur galvanischen Beschichtung von Magnesium- oder Magnesiumlegierungsoberflächen. Zur Abscheidung unterschiedlicher Metallschichten aus Magnesium- oder Magnesiumlegierungsoberflächen wird mit dem erfindungsgemäßen Verfahren vorgeschlagen, die zu beschichtenden Oberflächen bis zur Abscheidung einer ersten Metallschicht auf den Oberflächen diese ausschließlich mit Prozesslösungen und Spüllösungen in Kontakt zu bringen, welche einen pH-Wert > pH 7 aufweisen. Es hat sich herausgestellt, dass bei Vermeidung der Kontaktierung der zu beschichtenden Oberflächen mit Prozesslösungen mit einem pH-Wert ≤ 7 Metallschichten auf eine Vielzahl von Magnesium- oder Magnesiumlegierungsoberflächen mit gutem Abscheideergebnis haftfest abgeschieden werden können.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur elektrolytischen Beschichtung von Werkstoffen mit Aluminium, Magnesium oder Legierungen von Aluminium und Magnesium, wobei der Werkstoff zur Vorbehandlung in einen aluminiumorganischen Elektrolyten getaucht wird und dort anodisch geschaltet wird und unmittelbar danach die elektrolytische Beschichtung in demselben Elektrolyten erfolgt.
摘要翻译:与铝,镁或铝/镁衬底的电解涂覆合金是通过浸渍在电解质和阳极连接它预处理的基材,该涂层立即与浴中的有机铝化合物作为电解质含有相同电解质以下; 和电解液的不含卤素的非质子溶剂。 与铝,镁或铝/镁合金的基片衬底的电解涂覆通过浸渍到电解质和阳极连接进行预处理,该涂层立即在相同的电解质在与浴包含:(a)中的有机铝化合物 式(I)或(II); 和(b)对电解液不含卤素的非质子溶剂。 n = 0或1; M =钠或钾; 和R1 - R4 = 1-4C烷基。
摘要:
Improved method of producing of adherent metallic coatings on articles made from magnesium is disclosed. The articles are exposed to a two-step surface activating prior to chemical precipitation of zinc deposit. The first activating is carried out in a solution of oxalic acid and after rinsing a secondary activating takes place in a special bath comprising alkali metal pyrophosphate and preferably added wetting agent. The pyrophosphate is preferably potassium pyrophosphate K 4 P 2 O 7 .
摘要:
The present invention provides: a surface-treated material that can simply and in a short time period form a surface treatment film having an adequate adhesiveness particularly on an electroconductive substrate which is mainly formed of a base metal having a large ionization tendency and is considered to resist having a sound plating film formed thereon; and a component produced by using the same. A surface-treated material (10) of the present invention comprises an electroconductive substrate (1) and a surface treatment film (2) formed of at least one or more layers of metal layers (3 and 4) which are formed on the electroconductive substrate (1), and among the at least one or more layers of metal layers (3 and 4), a lowermost metal layer (3) which is directly formed on the electroconductive substrate (1) comprises a plurality of metal-buried portions (3a) that are scattered in the electroconductive substrate (1) and continuously extend from a surface of the electroconductive substrate (1) toward an inside thereof.