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NEPLATNÁ ASTM B766-86(2015) 1.3.2015 náhľad

Doplňujúce informácie

ASTM B766-86(2015)

Standard Specification for Electrodeposited Coatings of Cadmium

Automaticky preložený názov:

Štandardné špecifikácie pre elektrolyticky Coatings kadmia

NORMA vydaná dňa 1.3.2015

Jazyk
Prevedenie	PDF - okamžité stiahnutie - 69.50 € Tlačené - 69.50 €
Dostupnosť	SKLADOM
Cena	69.50 € bez DPH
69.50 €

Informácie o norme:

Označenie normy: ASTM B766-86(2015)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.3.2015
Kód tovaru: NS-585709
Počet strán: 9
Približná hmotnosť: 27 g (0.06 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Anotácia textu normy ASTM B766-86(2015) :

Keywords:
?€‰cadmium, electrodeposited coatings, electrodeposited coatings, cadmium ,, ICS Number Code 25.220.40 (Metallic coatings)

Doplňujúce informácie

1. Scope

1.1 This specification covers the requirements for electrodeposited cadmium coatings on products of iron, steel, and other metals.

Note 1: Cadmium is deposited as a coating principally on iron and steel products. It can also be electrodeposited on aluminum, brass, beryllium copper, copper, nickel, and powder metallurgy parts.

1.2 The coating is provided in various thicknesses up to and including 25 μm either as electrodeposited or with supplementary finishes.

1.3 Cadmium coatings are used for corrosion resistance and for corrosion prevention of the basis metal part. The as-deposited coating (Type I) is useful for the lowest cost protection in a mild or noncorrosive environment where early formation of white corrosion products is not detrimental or harmful to the function of a component. The prime purpose of the supplementary chromate finishes (Types II and III) on the electroplated cadmium is to increase corrosion resistance. Chromating will retard or prevent the formation of white corrosion products on surfaces exposed to various environmental conditions as well as delay the appearance of corrosion from the basis metal.

1.4 Cadmium plating is used to minimize bi-metallic corrosion between high-strength steel fasteners and aluminum in the aerospace industry. Undercutting of threads on fastener parts is not necessary as the cadmium coating has a low coefficient of friction that reduces the tightening torque required and allows repetitive dismantling.

1.5 Cadmium-coated parts can easily be soldered without the use of corrosive fluxes. Cadmium-coated steel parts have a lower electrical contact resistance than zinc-coated steel. The lubricity of cadmium plating is used on springs for doors and latches and for weaving machinery operating in high humidity. Corrosion products formed on cadmium are tightly adherent. Unlike zinc, cadmium does not build up voluminous corrosion products on the surface. This allows for proper functioning during corrosive exposure of moving parts, threaded assemblies, valves, and delicate mechanisms without jamming with debris.

2. Referenced Documents

B322-99(2020)e1	Standard Guide for Cleaning Metals Prior to Electroplating (Includes all amendments and changes 12/7/2020).
B343-92a(2020)	Standard Practice for Preparation of Nickel for Electroplating with Nickel (Includes all amendments and changes 12/4/2020).
B374-21	Standard Terminology Relating to Electroplating
B487-20	Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
B499-09(2021)e1	Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals (Includes all amendments and changes 5/18/2021).
B558-79(2019)	Standard Practice for Preparation of Nickel Alloys for Electroplating
B571-23	Standard Practice for Qualitative Adhesion Testing of Metallic Coatings
B602-21	Standard Guide for Attribute Sampling of Metallic and Inorganic Coatings
B697-88(2021)	Standard Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings
E8-04	Standard Test Methods for Tension Testing of Metallic Materials
F519-23	Standard Test Method for Mechanical Hydrogen Embrittlement Evaluation of Plating/Coating Processes and Service Environments
B567-98(2021)	Standard Test Method for Measurement of Coating Thickness by the Beta Backscatter Method
B568-98(2021)	Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
QQ-P-416	Plating, Cadmium (Electrodeposited) Available from U.S. Government Printing Office, Washington DC 20402.
MIL-STD-1312	Fasteners, Test Methods Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
B242-99(2020)	Standard Guide for Preparation of High-Carbon Steel for Electroplating
B253-11(2022)	Standard Guide for Preparation of Aluminum Alloys for Electroplating
B281-88(2019)e1	Standard Practice for Preparation of Copper and Copper-Base Alloys for Electroplating and Conversion Coatings (Includes all amendments and changes 5/14/2019).
B320-60(2019)	Standard Practice for Preparation of Iron Castings for Electroplating
B183-18(2022)	Standard Practice for Preparation of Low-Carbon Steel for Electroplating
B201-80(2019)	Standard Practice for Testing Chromate Coatings on Zinc and Cadmium Surfaces
B504-90(2023)	Standard Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method
B507-14(2021)	Standard Practice for Design of Articles to Be Electroplated on Racks
A165-80	Specification for Electrodeposited Coatings of Cadmium on Steel
B117-19	Standard Practice for Operating Salt Spray (Fog) Apparatus
B254-92(2020)e1	Standard Practice for Preparation of and Electroplating on Stainless Steel (Includes all amendments and changes 12/7/2020).

Podobné normy:

ASTM A917-08

Historická
1.5.2008

ASTM A924/A924M-14..

Historická
1.10.2014

ASTM B137-95(2014)..

Historická
1.11.2014

ASTM B200-85(2015)..

Historická
1.3.2015

ASTM B201-80(2014)..

Historická
1.11.2014

ASTM B322-99(2014)..

Historická
1.11.2014

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