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This guide covers procedures for preparing various wrought metal surfaces for adhesive bonding. 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 methods may be revised or supplemented, as necessary, to include methods based on proven performance. Initial treatment is at about 5 to 10 V. The values given in parentheses are for information only. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Exercise extreme care to ensure removal of all traces of the etchant. Good bond strengths have resulted by bonding titanium alloys that have been anodized by proprietary processes.
Contaminants, such as metal particles, oils, etc. Peening action of any blast process may work-harden the surface of some base metals. Apply the adhesive immediately after the treatment. A thorough rinsing with distilled water may be necessary to ensure complete removal. Material Sulfuric acid 6. Historical Version s – view previous versions of standard.
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Refer to the appropriate literature for details on cleaning techniques and procedures. Records should indicate the continuous conditions of solutions, such as amount of constituents added to bring solutions within limits, amount of contaminants present and date prepared see Methods D Thorough rinsing should follow.
The high reactivity of magnesium requires that corrosion-preventative coatings be asttm for most service applications. Procedures for aluminum alloys are well standardized, possibly because more bonding has been done with these alloys.
Search all products by. The etching time is generally 10 to 20 min. Commercial vapor degreasing equipment is usually used. This is especially true for stainless steel. Generally astk production, a series of d22651 containing the necessary solutions is arranged with overhead cranes to transport parts to be prepared.
Do asmt 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. 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.
ASTM International – Standard References for ASTM D – 01()
Somewhat lower bond strength results from this method compared to other methods described. Other metals may be used if they are resistant to the solution used. Learn more about the cookies we use and how to change your settings. This abstract is a brief summary of the referenced standard.
Hand sanding, rubbing with metal wool, and wire brushing are the least effective methods. The use of a Series stainless steel for atsm equipment is suggested. 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.
The parts are raised above the tank and allowed to dry thoroughly. You may experience issues viewing this site in Internet Explorer 9, 10 or This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
ASTM D2651 – 01(2016)
Especially detrimental are paint or other spraying operations, processes using powdered materials, oil vapors from pumps and other machinery and spraying of mold release agents. Several commercial products are available. Click to learn more.
Other methods, such as indicator paper and contact angle, have been used to s2651 the effectiveness of the process. The application of these paste systems allows for their use in fairly controlled areas. The values given d261 parentheses are for information only.
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