Abstract: A cylinder liner for insertion into an aluminum internal-combustion engine block may include a cylindrical body of cast iron having a circumferential external surface. The cylinder liner may also have a coating deposited on and surrounding the external surface. The external surface may have a specific roughness, and the coating may include at least 98% by volume of pure nickel, and a remainder composed of impurities.

Abstract: A printed circuit board for a memory card includes an insulating layer; a mounting part on a first surface of the insulating layer, the mounting part being electrically connected to a memory device; and a terminal part on a second surface of the insulating layer, the terminal part being electrically connected to an external electronic appliance, wherein a same metal layer having a same property is formed on exposed surfaces of the mounting part and the terminal part.

Abstract: The present invention is related to a galvanic nickel or nickel alloy electroplating bath for depositing a semi-bright nickel or nickel alloy coating characterized in that the electroplating bath comprises at least one compound having the general formula (I) wherein R1=C1-C18 hydrocarbon moiety substituted with a SO3? group, C1-C18 hydrocarbon moiety substituted with a carboxylic group or C1-C18 hydrocarbon moiety substituted with at least an aromatic and/or a heteroaromatic group; R2=NR3R4 moiety, OR5 moiety, or cyclic NR6 moiety, wherein R3, R4, R5=hydrogen or C1-C18 hydrocarbon moiety or C1-C18 hydrocarbon moiety substituted with at least an aromatic and/or a heteroaromatic group, wherein R3, R4 and R5 are identical or different; R6=C3-C8 hydrocarbon moiety or C3-C8 hydrocarbon moiety, wherein at least one carbon atom is substituted by a heteroatom; and n=1-3.

Abstract: Nickel-plated shaped parts are produced by galvanic precipitation of nickel from aqueous-acid baths which contain as essential constituents one or several nickel salts, one or several inorganic acids and one or several brighteners. As brighteners are used thiourea salts having general formula (I), in which R.sup.1 to R.sup.4 stand for hydrogen, C.sub.1 to C.sub.18 -alkyl, which may be substituted by carboxyl groups, C.sub.1 to C.sub.4 -alkoxycarbonyl groups or cyano groups, C.sub.2 to C.sub.12 -alkenyl, C.sub.2 to C.sub.12 -alkinyl, C.sub.5 to C.sub.8 -cycloalkyl, C.sub.7 to C.sub.12 -phenylalkyl or phenyl, which may be substituted by one or two C.sub.1 to C.sub.4 -alkyl residues, C.sub.1 to C.sub.4 -alkoxy residues, halogen atoms, hydroxyl groups, phenyl groups, phenyl residues or C.sub.1 to C.sub.4 alkoxycarbonyl groups; Y sands for a chemical bond or for linear or branched alkylene, alkenylene or alkinylene having each up to 20 C.

Abstract: Nickelized shaped articles are produced by electrodeposition of nickel from aqueous acidic baths containing as essential constituents one or more nickel salts, one or more inorganic acids and one or more brighteners by a procedure in which the brighteners used are phosphonium salts I ##STR1## where R.sup.1 to R.sup.3 are each C.sub.1 -C.sub.18 -alkyl, which may be carboxyl-, C.sub.1 -C.sub.4 -alkoxycarbonyl- or cyano-substituted, C.sub.2 -C.sub.12 -alkenyl, C.sub.2 -C.sub.12 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.12 -phenylalkyl, phenyl, which may be substituted by one or two substituents selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, hydroxyl, phenyl and C.sub.1 -C.sub.4 -alkoxycarbonyl, or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino,R.sup.4 and R.sup.5 are each hydrogen or C.sub.1 -C.sub.4 -alkyl,A is hydrogen or a group of the formula --CO--H, --CO--R.sup.6, --CO--OH, --CO--OR.sup.6, --CO--CH.sub.2 --CO--OR.sup.6, --O--CO--H, --O--CO--R.sup.

Abstract: The invention concerns acid nickel baths containing 1-(2-sulfoethyl)-pyridinium betaine

Abstract: An aqueous acid electroplating solution comprising nickel ions and one or more acetylenic compounds, specifically mono- and polyglyceryl ethers of acetylenic alcohols; acetylenic compounds useful in the electroplating solution; and processes using such solution and compounds. The invention is particularly useful for nickel plating an irregular surface such as a printed circuit board having through-holes.