Abstract: A method of using a silane additive in an aqueous cleaning composition, in an aqueous rinsing liquid and/or in an aqueous activation composition for preventing pinholes on zinc-containing metallic surfaces, wherein the silane content in at least one of these aqueous compositions is in a range of 0.001 to 5 g/l.

Abstract: According to some embodiments, information about a delta change package may be received. The delta change package may be, for example, associated with a customer extension project to be applied to content from a business service provider. A description tag for the delta change package may be received from a user, and the delta change package may be associated with the description tag in a repository of the business service provider.

Abstract: A method for treating or pre-treating parts, profiled-pieces, strips, sheet metals or wires having metallic surfaces, in which at least 5% of these surfaces consists of aluminum or of at least one aluminum alloy with an acid aqueous solution which contains fluoride, zinc and phosphate and which has the following dissolved contents in the phosphatizing solution: sodium virtually none, from 0.04 to less than 2 g/L; potassium virtually none or in a concentration ranging from 0.025 to 2.5 g/L; sodium and potassium in a concentration ranging from 0.025 to 2.5 g/L as sodium, whereby the potassium content is converted to sodium on a molar basis; zinc 0.2 to 4 g/L zinc, 5 to 65 g/L calculated as PO4; 0.03 to 0.5 g/L phosphate free fluoride wherein the total fluoride is present in a concentration ranging from 0.1 to 5 g/L. A zinc-containing phosphate layer is thereby deposited onto the metallic surfaces with a layer weight ranging from 0.5 to 10 g/m2.

Abstract: According to some embodiments, information about a delta change package may be received. The delta change package may be, for example, associated with a customer extension project to be applied to content from a business service provider. A description tag for the delta change package may be received from a user, and the delta change package may be associated with the description tag in a repository of the business service provider.

Abstract: A method for treating or pre-treating parts, profiled-pieces, strips, sheet metals or wires having metallic surfaces, in which at least 5% of these surfaces consists of aluminum or of at least one aluminum alloy with an acid aqueous solution which contains fluoride, zinc and phosphate and which has the following dissolved contents in the phosphatizing solution: sodium virtually none, from 0.04 to less than 2 g/L; potassium virtually none or in a concentration ranging from 0.025 to 2.5 g/L; sodium and potassium in a concentration ranging from 0.025 to 2.5 g/L as sodium, whereby the potassium content is converted to sodium on a molar basis; zinc 0.2 to 4 g/L zinc, 5 to 65 g/L calculated as PO4; 0.03 to 0.5 g/L phosphate free fluoride wherein the total fluoride is present in a concentration ranging from 0.1 to 5 g/L. A zinc-containing phosphate layer is thereby deposited onto the metallic surfaces with a layer weight ranging from 0.5 to 10 g/m2.

Abstract: A method for the treatment or pre-treatment of surfaces of metal objects by means of an acidic, aqueous solution containing zinc and phosphate. The phosphating solution contains between 0.1-10 g/L, zinc, 4-50 g/L phosphate calculated as PO4, between 0.03-3 g/L, of at least one guanidine compound comprising at least one nitro group calculated as nitroguanidine, and between 0.001-0.9 g/L hydrogen peroxide and has a temperature of less than 80° C. The corresponding acidic, aqueous composition and finished products are also disclosed.

Abstract: The invention relates to a method for the treatment or pre-treatment of surfaces of metal objects by means of an acidic, aqueous solution containing zinc and phosphate. Said invention is characterised in that the phosphating solution contains between 0.1-10 g/L zinc, 4-50 g/L phosphate calculated as PO4, between 0.03-3 g/L of at least one guanidine compound comprising at least one nitro group calculated as nitroguanidine, and between 0.001-0.9 g/L hydrogen peroxide and has a temperature of less than 80° C. The invention also relates to a corresponding acidic, aqueous composition.

Abstract: The invention relates to a method for treating or pre-treating parts, profiled-pieces, strips, sheet metals and/or wires having metallic surfaces, in which at least 5% of these surfaces consists of aluminum and/or of at least one aluminum alloy and, optionally, the remaining metallic surfaces can predominantly consist of iron alloys, zinc and/or zinc alloys. The treatment involves the use of an acid aqueous solution, which contains fluoride, zinc and phosphate and which has the following dissolved contents in the phosphatizing solution: sodium virtually none or in a concentration ranging from 0.04 to less than 2 g/L; potassium virtually none or in a concentration ranging from 0.025 to 2.5 g/L; sodium and potassium in a concentration ranging from 0.025 to 2.5 g/L as sodium, whereby the potassium content is converted to sodium on a molar basis; zinc in a concentration ranging from 0.

Abstract: The invention relates to a method for coating metallic surfaces by a manganese-zinc phosphatizing process, using an aqueous phosphatizing solution, in which nickel is deliberately not added. Said method is characterized in that the zinc:manganese weight ratio of the phosphatizing solution is maintained in the region of between 0.05:1 and 0.99:1 and that the phosphatizing solution has the following contents: between 0.05 and 5 g/l zinc, between 0.075 and 5.2 g/l manganese and between 0.008 and 0.050 g/l copper and/or hexafluoride complexes of titanium, hafnium and/or zirconium totalling between 0.002 and 0.5 g/l, calculated as F6. The invention also relates to the use of the metal parts coated in this manner.

Abstract: An aqueous solution contains phosphate for producing layers of phosphate on metal surfaces selected from the group consisting of iron, steel, zinc, zinc alloys, aluminum and aluminum alloys. The solution contains 0.3 to 5 g Zn2+/1, 0.1 to 2 g nitroguanidine/1 and 0.05 to 0.5 g hydroxylamine/l, with an S-value amounting to 0.03 to 0.3 and the ratio of the weight of Zn2+ to P2O5=1:5 to 1.30.