ASTM E1793-05
(Practice)Standard Practice for Preparation of Aluminum Alloy for Bonding in Foam and Beam Type Transportable Shelters
Standard Practice for Preparation of Aluminum Alloy for Bonding in Foam and Beam Type Transportable Shelters
SIGNIFICANCE AND USE
Reproducible and durable adhesive bonds to aluminum alloys can be obtained reliably only through proper selection and careful control of the materials used and the steps in the bonding process. The preparation of the aluminum alloys to obtain clean, uniform surfaces with appropriate characteristics is a critical step. This practice describes how such surfaces can be obtained.
SCOPE
1.1 This practice covers the preparation of clean, uniform surfaces of aluminum alloy suitable for formation of durable adhesive bonds in "foam and beam" panels used for the manufacture of tactical shelters.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.
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Standards Content (Sample)
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Designation:E1793–05
Standard Practice for
Preparation of Aluminum Alloy for Bonding in Foam and
1
Beam Type Transportable Shelters
This standard is issued under the fixed designation E1793; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.2 Definitions of Terms Specific to This Standard:
3.2.1 Type 1 panels—panels used in the construction of
1.1 This practice covers the preparation of clean, uniform
foam and beam shelters designed for 71.1°C (160°F) elevated
surfaces of aluminum alloy suitable for formation of durable
humidity service.
adhesive bonds in “foam and beam” panels used for the
3.2.2 Type 2 panels—panels used in the construction of
manufacture of tactical shelters.
foam and beam shelters designed for 93.3°C (200°F) elevated
1.2 The values stated in SI units are to be regarded as the
humidity service.
standard. The values given in parentheses are for information
3.2.3 foam and beam panel—a sandwich construction con-
only.
sisting of internal rigid foam core placed between structural
1.3 This standard does not purport to address all of the
beams (at specific distance(s) apart) and bonded to face sheets
safety concerns, if any, associated with its use. It is the
on both sides.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Significance and Use
bility of regulatory limitations prior to use.
4.1 Reproducible and durable adhesive bonds to aluminum
2. Referenced Documents alloys can be obtained reliably only through proper selection
2
and careful control of the materials used and the steps in the
2.1 ASTM Standards:
bonding process. The preparation of the aluminum alloys to
E864 Practice for Surface Preparation of Aluminum Alloys
obtain clean, uniform surfaces with appropriate characteristics
to Be Adhesively Bonded in Honeycomb Shelter Panels
is a critical step. This practice describes how such surfaces can
E1749 Terminology Relating to Rigid Wall Relocatable
be obtained.
Shelters
E1794 Specification forAdhesive for Bonding Foam Cored
5. Apparatus
SandwichPanels(200°FElevatedHumidityService),Type
5.1 General Processing—Practice E864, paragraph 5.1 ap-
II Panels
plies.
E1800 Specification forAdhesive for Bonding Foam Cored
SandwichPanels(160°FElevatedHumidityService),Type
6. Materials
I Panels
6.1 Water—Practice E864, paragraph 5.1 applies.
6.2 Cleaning Solutions:
3. Terminology
6.2.1 Type 1 Panels—Partsshallbedipcleanedinasolution
3.1 Definitions—See Terminology E1749 for definitions of
which is made up in accordance with the manufacturers’
other terms used in this practice.
recommendations. The only requirement for acceptability be-
ing that the conditions of 7.2.1 be met.
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This practice is under the jurisdiction of ASTM Committee E06 on Perfor-
6.2.2 Type 2 Panels—Treat aluminum using either Method
mance of Buildings and is the direct responsibility of Subcommittee E06.53 on
1 or Method 2 of Practice E864.
Materials and Processes for Durable Rigidwall Relocatable Structures.
Current edition approved Oct. 1, 2005. Published October 2005. Originally
7. Test Methods
approved in 1996. Last previous edition approved in 2000 as E1793 – 00. DOI:
10.1520/E1793-05.
7.1 General—The test methods of Practice E864 apply,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
except as otherwise listed.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.2 Exceptions:
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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E1793–05
7.2.1 Surface Resistance—Surface resistance measurements 9. Quality Assurance
shall be made using a Model 152 Microhm meter and a Model
9.1 Process Inspection—Concentration of the cleaning so-
3
H-2000 test jig. Current shall be 10.0 6 0.2 A. The electrode
lutionsandtheirtemperaturesduringuseshallbeinaccordance
force shall be 267 6 11 kg (600 6 25 lb). The entire apparatus
with the manufacturer’s recommendations or in accordance
shall be calibrated per the manufacturer’s recommendations,
with the requirements of Practice E864. Daily titration and
and at least once every week inspect the electrode tips for
temperature readings shall be taken to determine compliance
deterioration and wear.
with the requirements.
7.2.2 Physical Strength Test—The adequacy for
...
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