Din 50938

Thecondition of the bath shall be continuously checked by monitoring the boiling point, which is dependent onconcentration. To meet special requirements, paints orsimilar coatings may be applied. Can you tell us if it specifies a humidity or neutral salt spray exposure requirement in addition to the weight requirement? If a specific treatmentis not required and thus need not be referred to in the designation, this shall be indicated by a double solidus.

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When components having highly contoured surfaces are to be tested, full immersion with amended times may be agreed. Specification is DIN [link by ed.

Page 3 DIN The purpose of this treatment is to give the material a particular appearance and to increase its corrosion resistance even without aftertreatment. About four drops of the test solution shall then be applied to a flat areaof the coated specimen or component.

DIN 铁和钢的黑色氧化涂层.要求和试验方法 - MBA智库文档

Thecondition of the bath shall be continuously checked by monitoring the boiling point, which is dependent onconcentration.

When components having highly contoured surfaces are to be tested, full immersion with amended times maybe agreed.

To meet special requirements, paints or similar coatings may be applied. This process provides iron and steel i. DIN EN Unless otherwise agreed, the samples shall be collected as specified in ISO see clause 5, item f. About three drops of the test solution shall then be applied to dn flat area of the coated specimen or component.

DINArtificial climates in technical applications — Condensation water test atmospheresDINProtective coatings on metals — Concepts, application methods and surface preparationDINElectroplated and chemically applied coatings — Designation and information in technicaldocumentationDINENCorrosion protection of metals — Electrodeposited coatings — Method of specifying generalrequirementsContinued on pages 2 to 5.

Designation of supplementary treatments applied to 509388 oxide coatingsSymbolType of treatmentT1Application of paints, varnishes, pow-der coatings or similar materialsT4Application of grease, oil or other lubri-cantsT5Application of waxT10Application of water-displacing anti-corrosive agentsNOTE: The good di is that the spec is available in both German and English versions.

Designation of supplementary treatments applied to black oxide coatings Symbol T1 T4 T5 T10 Type of treatment Application of paints, varnishes, powder coatings or similar materials Application of di, oil or other lubricants Application of wax Application of water-displacing anticorrosive agents NOTE: I do not have DIN on hand, but you must.

Do you know what the spec calls for?

Questions about DIN Black Oxide Finish

The german title is: Assessment of oxalic acid dni of exposedQuality of coatingcoating areaGrey with light-grey haloInadequateBlack to brownish blackGood1with exposed halo 1 Even good quality coatings may have verybright halos due to metal being exposed at theboundary of the area to which the solution wasapplied. These shall be designated as follows: Previous editions DIN Page 4 DIN Alkaline Black to DIN [link by ed.

It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. Welcome to the world's most popular metal finishing website topic DIN 5098 Oxide Finish A discussion started in but continuing through Q.

DIN 50938 Black Oxide Finish

We need to perform a finish according to DIN [link by ed. To prevent edge corrosion, sharp edges shall be coated with acid-resistantpaint after coating and prior to being placed in 05938 test chamber.

Designation of a black oxide coating on a steel Fe component that has not been heat-treated, but hasundergone the single-bath coating process A and then waxed T5: The condition of the bath shall be continuously checked by monitoring the boiling point, which is dependent on concentration.

If a specific treatmentis not required and thus need not be referred to in the designation, this shall be indicated by a double solidus. Depending on the composition, con-centration and temperature of the solution, the coatings will develop in immersion times of between five andtwenty minutes.

Unless otherwise agreed, the samples shall be collected as specified in ISO see clause 5, item f. The Black Oxide coating mean mass must be 5. About four drops of the test solution shall then be applied to a flat area of the coated specimen or component.

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Torr Posted on10:12 pm - Oct 2, 2012

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