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Adhesive bonds surface preparationCarbon steel, Copper, Copper alloy, Magnesium alloys, Metallic adhesives, Metal-to-metal contact, Stainless steel, Titanium alloys, Aluminum alloys-surface preparation for adhesive, bonding, Bond strength-adhesives metal-to-metalSurface preparation-adhesive bonding. Thorough rinsing follows, usually in warm to hot running water.
Norma ASTM D()
It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Oxidation can occur in a very short time, even before the parts are wstm.
Solutions should be sampled periodically and analyzed for materials pertinent to the particular treatment method, such as, titration for hexavalent chromium CrO3iron, chlorides, aluminum, etc.
The surface should be recleaned until the test is passed. The values given in parentheses are for information only.
ASTM International – Standard References for ASTM D – 01()
Learn more about the cookies we use and how to change your settings. On the basis of the results of such an investigation, it may be possible to extend the length of zstm and establish standards for the interval between surface preparation and adhesive application to?
The surface is anodically etched again using a wrapped electrode and a deep-etching solution. Surface preparation for magnesium alloys which is closely associated with corrosion prevention shall involve vapor, alkaline-detergent solution, chromic acid, asmt sodium hydroxide acid degreasing; anodic treatment; and the use of conversion coatings and wash primers.
It produces a smut-free surface that can be treated by other chemical processes. In production bonding of complicated or large parts, the time interval may exceed 8 h. Originally published as D — Full-scale property tests should be run with the metal surfaces so prepared with the adhesive in question before accepting the process.
ASTM D2651 – 01(2016)
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applica- 1 This guide is under the jurisdiction of ASTM Committee D14 on Adhesives and is the direct responsibility of Subcommittee D This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.
Preliminary tests should be conducted with the speci? It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Vapor blasting by water or steam and an abrasive is the most effective method and does not warp parts, if done carefully.
ICS Number Code Contaminating operations in the area should be avoided. The etching time is generally 10 to 20 min. Procedure NOTE 3—The surface preparation methods for magnesium alloys are closely associated with corrosion prevention. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Preliminary tests should be conducted to determine suitability of these processes before acceptance.
The use of a Series stainless steel for such equipment is suggested.
If continuous failures occur, the treating process itself should be analyzed to determine the cause of the problem. You may find similar items within these categories by selecting from the choices below:. Do not allow to dry. Historical Version s – view previous versions of standard.
Your basket is empty. Your comments will receive careful consideration at a meeting of the responsible technical committee, astk you may attend. Surface preparation for magnesium alloys which is closely associated with corrosion prevention shall involve vapor, alkaline-detergent solution, chromic acid, and sodium hydroxide acid degreasing; anodic treatment; and the use of conversion coatings and wash primers.
The high reactivity of magnesium requires that corrosion-preventative coatings be applied for most service applications.
Exercise care to ensure that all abrasive materials grit, sand, cloth, sand paper, or brushes are free from contamination that may be spread or rubbed onto the steel.
Search all products by. Commercially available proprietary solutions may be used. The useful life of solutions 2d651 upon the number and size of the parts being prepared. After removing from any rinse the water-break test is commonly used. A number in parentheses indicates the year of last reapproval.