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This can be accomplished by wiping with a cloth wetted with a variety of commercial solvents, such as acetone, methyl ethyl ketone, lacquer thinner and naphtha. The values given in parentheses are for information only. NOTE 1—No entirely foolproof method exists to determine bondability of a metal surface after preparation. Finishing voltages from 15 to 25 V are used. The surface should be recleaned until the test is passed.
Worldwide Standards We can source any standard from anywhere in the world. Parts are suspended in the vapor zone above the hot liquid and allowed to remain until there is condensation and run off approximately 5 min. Do not seal the anodized parts with boiling water before bonding.
ASTM D – 01 Standard Guide for Preparation of Metal Surfaces for Adhesive Bonding
A pH reading or acid content of trichloroethane vapor degreasing solution, or both, should be obtained. The high reactivity of magnesium requires that corrosion-preventative coatings be applied for most service applications. Box T, Carson, CA It is informational only and not an official part of the standard; the full text of the standard itself must be referred v2651 for its use and application.
Thorough rinsing should follow. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Sand blast, grit blast, or vapor hone may be used.
Search all products by. Preliminary tests should be conducted with the speci? You may find similar items within these categories by selecting from the choices below:. Referenced Documents purchase separately The documents listed below are aatm within the subject standard but are not provided as part of the standard. Tanks should be lined with suitable materials to resist the solutions, and methods for circulating the solutions and heating with temperature controls should be included if required.
The major problem is in preventing oxidation of the surfaces. The methods may be revised or supplemented, as necessary, to include methods based on proven performance.
Any trace of residual cleaning solution should be removed or a false conclusion may be made. ICS Number Code atsm This abstract is a brief summary of the referenced standard. Rinsing may be done by spray or by dipping in a tank in which the water is circulated and constantly being renewed by an over?
Procedure NOTE 3—The surface preparation methods for magnesium alloys are closely associated with corrosion prevention.
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. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. The surface is the cathode. Vapor blasting by water or steam and an abrasive is the most effective method and does not warp parts, if done carefully.
ASTM D2651 – 01(2016)
Exercise care in using any mechanical method to prevent deep gouges or rough surfaces which are not conducive to good bonding. Investigation should be made to determine the time limitation of the adhesive and the rate of change on the surface of the adherend. It is the responsibility of the user of this standard to establish appropriate d26511 and health practices and determine the applicability of regulatory limitations prior to use.
Exercise care to ensure that all abrasive f2651 grit, sand, cloth, sand paper, or brushes are free from contamination that may be spread or rubbed onto the steel. Aluminum oxide-impregnated nylon matting, glass-bead blasting and aluminum oxide cloth are typical acceptable abrasives. Peening action of any blast process may work-harden the surface of some base metals. Do not allow the time interval between treatment and bonding to exceed 72 h, and cover or wrap all parts during the interval with a non-contaminating vapor barrier material.
Dry grit or sand blasting tends to warp thin sheet materials; these methods are suited only for thick-section parts. Hand sanding, rubbing with metal wool, and wire brushing are the least effective methods. Thorough rinsing follows, usually in warm to hot running water. Take the smart route to manage medical device compliance.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Wash, vaporize degrease, and brush or air blasted dry oil-free air surfaces to remove all asym of the abrasives.