ASTM B (Reapproved )_能源/化工_工程科技_专业资料。 Designation: B – 97 (Reapproved ) Standard Speci?cation for. This ASTM B specification covers the requirements for electroplated nickel coatings applied to metal products for engineering applications. Bright Nickel Plating. ASTM B, AMS-QQ-N bright nickel plated electrical components. At APP we do bright nickel plating, it is widely used for decorative.
When contacts must be located on signi? The test must yield a numerical value and certain statistical requirements must be met. If you feel that your comments have not received a fair hearing you should make your views known to the Astk Committee on Standards, at the address shown below.
For the effect of such additives, see Section 4 and Annex A3. Identify the substrate material by alloy identi?
In addition, the average coating thickness on articles will vary from article to article within a production lot. Also, reduction in the fatigue life of nickel-electroplated steels can be reduced by considering the relations among the variables that in? The procedure is known as sampling inspection.
Type 2 nickel coatings produced with certain organic additives astn exhibit signi?
Molds, dies, shafts, housings, and precision? When they are desired they must be stated in the purchase order see 5. Nickel thickness n689 exceeds 5?
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Allow 10 sstm contact time for the test period see Annex A2. It is recommended that the speci? Cobalt salts are sometimes added to the plating solution to produce harder nickel alloy deposits.
Nonmagnetic Coatings on Magnetic Basis Metals. This abstract is a brief summary of the referenced standard. Electronic industry and optical re?
NOTE 12—Since many factors in? Originally approved in The boundaries of electroplating that cover only a portion of the surface shall, after?
ASTM B Nickel Coating | General Metal Finishing
NOTE 4—Good adhesion of electroplated nickel to stainless steels and high alloy steels usually requires a preliminary strike of electrodeposited nickel. Current edition approved Feb.
Coatings shall be sampled, tested, and conform accordingly to specified b6889 as to appearance, thickness measured either destructively by microscopical or coulometric method, or nondestructively by magnetic or X-ray methodadhesion examined either by bend, file, heat and quench, or push testporosity assessed either by hot water, ferroxyl, or flowers of sulfur aastmworkmanship, and hydrogen embrittlement relief.
Rejection shall be reported to the producer or supplier promptly, and in writing. Imperfections and variations in appearance in the coating that arise from surface conditions of the basis metal scratches, pores, roll marks, inclusions, etc. Just before use, astn the dry?
When necessary, the signi? Therefore, the coating thickness will have to exceed the speci? ASTM B rp NOTE 10—Test specimens often are used to represent the coated articles in b69 test if the articles are of a size, shape, or material that is not suitable for the test, or if it is preferred not to submit articles to a destructive test because, for example, the articles are expensive or few in number.
This standard has been approved for use by agencies of the Department of Defense.
ASTM B689 – 97(2018)e1
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Test Method B Magnetic should not be used for thicknesses less than 10? The test is very sensitive to the super? The purchaser needs to state whether the test is to be considered destructive or non-destructive. In case of dissatisfaction with the results of a test, the producer or supplier may make a claim for a rehearing.
Contact marks shall be minimized in size ashm frequency. Guide B provides a large number of plans and also gives guidance in the aztm of a plan. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Nickel Alloys; Chapter Methods B can be used only for coating requirements that have numerical limit, such as coating thickness.
Remove the papers at the end of the contact period, and place at once into solution C. NOTE 2—The thickness of the electrodeposit in holes, corners, recesses, and other areas where thickness cannot be controlled under normal electroplating conditions shall be speci?
Bright Nickel Plating
Referenced Documents purchase separately The astj listed below are referenced within the subject standard but are not provided as part of the standard. A source of oil-free air shall be available to aerate the water with agitation vigorous enough to prevent air bubbles from clinging to signi?
If not, it shall be introduced into the process at the point where the coating is applied and it shall be carried through all steps that have a bearing on the coating thickness. Finishes that show imperfections asgm subsequent manufacturing operations may be rejected.