TE Connectivity Aerospace, Defense and Marine 的 NT-FR Tubing 规格书

-: TE Raychem museum? Military chcral
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Tyco Electronics Corporation
305 Constitutional Drive
Menlo Park, CA 94025 USA
Specification
This Issue:
Date:
Replaces:
RT-511
Issue 11
16-Jun-15
Issue 10
RAYCHEM® NT-FR TUBING
Neoprene, Fluid Resistant, Flexible, Heat-Shrinkable
1.0 SCOPE
This specification covers the requirements for one type of highly flexible, electrically
insulating, extruded tubing whose diameter will reduce to a predetermined size upon the
application of heat in excess of 135°C (275°F).
2.0 APPLICABLE DOCUMENTS
This specification takes precedence over documents references herein. Unless otherwise
specified, the latest issue of referenced documents applies. The following documents
form a part of this specification to the extent specified herein.
2.1 GOVERNMENT-FURNISHED DOCUMENTS
Military
MIL-PRF-5606H Hydraulic Fluid, Petroleum Base, Aircraft, Missile, and Ordnance,
NATO no. H-515.
MIL-PRF-7808L Lubricating Oil, Aircraft Turbine Engine, Synthetic Base, Grade 3
NATO no. O-148, Grade 4 NATO no. O-163.
SAE-AMS-1424 Anti-Icing and Deicing - Defrosting Fluid
MIL-PRF-23699F Lubricating Oil, Aircraft Turbine Engines, Synthetic Base,
NATO no. O-156
MIL-DTL-46162E Fuel, Diesel, Referee Grade
MIL-PRF-46170D Hydraulic Fluid, Rust Inhibited, Fire-Resistant, Synthetic
Hydrocarbon Base, NATO code no. H-544.
MIL-DTL-83133G Turbine Fuels, Aviation, Kerosene Types, (NATO F-34) JP-8,
(NATO F-35) and JP8+100, (NATO F-37).
Federal
A-A-694D Sodium Chloride, Technical
A-A-59133B Cleaning Compound, High Pressure (Steam) Cleaner
American Socictv for Testing and Materials (ASTM) International Or anization for Standardization (ISO) http://www.iso.0m/iso/homc.html Qualification Tcsts
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2.2 OTHER PUBLICATIONS
American Society for Testing and Materials (ASTM)
D 257 Standard Test Methods for d-c Resistance or Conductance of Insulating
Materials
D 412 Standard Test Methods for Rubber Properties in Tension
D 2240 Standard Test Method of Rubber Property - Durometer Hardness
D 2671 Standard Methods of Testing Heat-Shrinkable Tubing for Electrical Use
G 21 Standard Recommended Practice for Determining Resistance of Synthetic
Polymeric Materials to Fungi
Copies of ASTM publications may be obtained from the American Society for Testing
and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.
International Organization for Standardization (ISO)
ISO 846 Plastics – Evaluation of the Action of Microorganisms
Copies of ISO publications may be obtained from the International Organization for
Standardization, 1, rue de Varembé, CH-1211 Geneva 20, Switzerland or at
http://www.iso.org/iso/home.html
3.0 REQUIREMENTS
3.1 MATERIAL
The tubing shall be fabricated from a stabilized, flame resistant, modified neoprene and
shall be radiation crosslinked. It shall be homogeneous and essentially free from flaws,
defects, pinholes, bubbles, seams, cracks, and inclusions.
3.2 COLOR
The tubing shall be black.
3.3 PROPERTIES
The tubing shall meet the requirements of Table 3.
4.0 QUALITY ASSURANCE PROVISIONS
4.1 CLASSIFICATION OF TESTS
4.1.1 Qualification Tests
Qualification tests are those performed on tubing submitted for qualification as a
satisfactory product and shall consist of all tests listed in this specification.
Acceglanee Tests Qualification Test Samgles Size Range Acccglanee Test Samples
SPECIFICATION RT-511 ISSUE 11 Page 3
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4.1.2 Acceptance Tests
Acceptance tests are those performed on tubing submitted for acceptance under contract.
Acceptance tests shall consist of the following:
Dimensions
Longitudinal Change
Tensile Strength
Tensile Stress
Ultimate Elongation
Heat Shock
Hardness
Flammability
Low Temperature Flexibility
4.2 SAMPLING INSTRUCTIONS
4.2.1 Qualification Test Samples
Qualification test samples shall consist of 50 feet (15 m) of tubing of each size.
Qualification of any size within each size range specified below will qualify all sizes in
the same range.
Size Range
1/8 through 7/8
1 through 3
4.2.2 Acceptance Test Samples
Acceptance test samples shall consist of not less than 16 feet (5 m) of tubing selected at
random from each lot. A lot shall consist of all tubing of the same size, from the same
production run, and offered for inspection at the same time.
4.3 TEST PROCEDURES
Unless otherwise specified, tests shall be performed on specimens which have been fully
recovered by conditioning for 10 minutes in a 175 ± 5°C (347 ± 9°F) oven. Prior to all
testing, the test specimens (and measurement gauges, when applicable) shall be
conditioned for 3 hours at 23 ± 3°C (73 ± 5°F ) and 50 ± 5 percent relative humidity. All
ovens shall be of the mechanical convection type in which air passes over the specimens
at a velocity of 100 to 200 feet (30 to 60 m) per minute.
Dimensions and Longitudinal Change Tensile Strength Tensile Stress and Ultimate Elongation Low Temperature Flexibility
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4.3.1 Dimensions and Longitudinal Change
Three 6-inch (150 mm) specimens of tubing, as supplied, shall be measured for length ±
1/32 inch (± 1 mm) and inside diameter in accordance with ASTM D 2671, conditioned
for 10 minutes in a 175 ± 5°C (347 ± 9°F) oven, cooled to 23 ± 3°C (73 ± 5°F), and then
remeasured. Prior to and after conditioning, the dimensions of the tubing shall be in
accordance with Table 1 and the longitudinal change shall be in accordance with Table 3.
Longitudinal change shall be calculated as follows:
C = L1 - L0
L0 x 100
Where: C = Longitudinal Change [Percent]
L
0 = Length Before Conditioning [Inches (mm)]
L
1 = Length After Conditioning [Inches (mm)]
4.3.2 Tensile Strength, Tensile Stress, and Ultimate Elongation
Three specimens of tubing shall be tested for tensile strength, tensile stress, and ultimate
elongation in accordance with ASTM D 2671. For tubing sizes 3/8 and smaller, the
specimens shall be full sections of tubing. For sizes 1/2 and larger, the specimens shall
be 1/4-inch (6.3-mm) wide strips. The specimens shall have 1-inch (25-mm) bench
marks, centrally located. The testing machine shall have an initial jaw separation of 1
inch (25 mm) for full sections of tubing , and 2 inches (51 mm) for strip specimens. The
rate of jaw separation shall be 20 ± 2 inches
(500 ± 50 mm) per minute.
4.3.3 Low Temperature Flexibility
Three specimens, each 12 inches (300 mm) in length, and a mandrel selected in
accordance with Table 2, shall be conditioned at -70 ± 3°C (-94 ± 5°F) for 4 hours. For
tubing sizes 5/8 or less, the specimens shall be whole sections of tubing recovered on a
stranded wire (nearest AWG which is larger than the sleeving maximum inside diameter
after unrestricted shrinkage). For tubing sizes larger than 5/8, the specimens shall be 1/4-
inch (6.3-mm)wide strips cut from tubing which has been recovered in accordance with
4.3. After 4 hours conditioning, and while still at the conditioning temperature, the
specimens shall be wrapped around the mandrel for not less than 360° (6.28 rad) in 10 ±
2 seconds. The specimens then shall be visually examined for evidence of cracking.
Heat Shock Heat Resistance Cogger Stability Dielectric Strength Corrosive Effect
SPECIFICATION RT-511 ISSUE 11 Page 5
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4.3.4 Heat Shock
Three 6-inch (150-mm) specimens of tubing shall be conditioned for 4 hours in a 200 ±
3°C (392 ± 5°F) oven. After conditioning, the specimens shall be removed form the
oven, cooled to room temperature, and visually examined for evidence of dripping,
flowing, or cracking.
4.3.5 Heat Resistance
Three specimens of tubing prepared and measured in accordance with 4.3.2, shall be
conditioned for 168 hours in a 121 ± 3°C (250 ± 5°F) oven. After conditioning, the
specimens shall be removed from the oven, cooled to 23± 3°C (73 ± 5°F), and tested for
tensile strength and ultimate elongation in accordance with 4.3.2.
4.3.6 Copper Stability
Three 6-inch (150-mm) specimens of tubing shall be slid over snug fitting, straight, clean,
bare copper mandrels, either solid or tubular. The specimens on the mandrels shall be
conditioned for 24 hours in a desiccator or similar humidity chamber at 90 to 95 percent
relative humidity and 25 ± 3°C (77 ± 5°F). The specimens on the mandrels then shall be
conditioned for 168 hours in a 121 ± 3°C (250 ± 5°F) oven. After conditioning, the
specimens shall be removed form the oven, cooled to 23 ± 3°C (73 ± 5°F). The copper
mandrels shall then be removed form the tubing and the tubing and copper mandrels shall
be examined. Darkening of the copper due to normal air oxidation shall not be cause for
rejection. The tubing shall be tested for elongation in accordance with 4.3.2.
4.3.7 Dielectric Strength
The dielectric strength shall be determined in accordance with the ASTM D 2671
procedure for dielectric breakdown. When dielectric breakdown occurs, the thickness
measurements for calculating dielectric strength shall be made adjacent to the point of
breakdown and the dielectric strength shall be calculated in volts per mil.
4.3.8 Corrosive Effect
The tubing shall be tested for copper mirror corrosion in accordance with ASTM D 2671,
Method A. The specimens shall be conditioned for 16 hours at 150 ± 3°C (302 ± 5°F).
Fluid Resistance
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4.3.9 Fluid Resistance
Six specimens, three 6-inch tubing specimens and three tensile specimens prepared and
measured in accordance with 4.3.2, shall be immersed for 24 hours in each of the test
fluids listed in Table 3 at the temperature specified. The volume of the fluid shall not be
less than 20 times that of the specimens. After conditioning, all the specimens shall be
lightly wiped and air dried for 30 to 60 minutes at 23 ± 3°C (73 ± 5°). The three
specimens intended for the tensile strength and elongation tests shall then be tested in
accordance with 4.3.2. The other three specimens shall be weighed before and after
immersion and the weight change calculated as a percentage.
4.4 REJECTION AND RETEST
Failure of any sample of tubing to comply with any one of the requirements of this
specification shall be cause for rejection of the lot represented. Tubing which has been
rejected may be replaced or reworked to correct the defect and then resubmitted for
acceptance. Before resubmitting, full particulars concerning the rejection and the action
taken to correct the defect shall be furnished to the inspector.
5.0 PREPARATION FOR DELIVERY
5.1 PACKAGING
Packaging shall be in accordance with good commercial practice. The shipping container
shall be not less than 125 pound-test fiberboard.
5.2 MARKING
Each container of tubing shall be permanently and legibly marked with the size, quantity,
manufacturer's identification, and lot number.
AS SUPPLIED RECOVERED
SPECIFICATION RT-511 ISSUE 11 Page 7
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TABLE 1
Tubing Dimensions
AS SUPPLIED RECOVERED
Inside Diameter Inside Diameter Wall Thickness
Size Minimum Maximum Minimum Maximum Nominal
in. mm. in. mm. in. mm. in. mm. in. mm.
1/8 .125 3.18 .061 1.55 .019 0.48 .035 0.91 .027 0.69
3/16 .187 4.75 .100 2.54 .023 0.58 .043 1.09 .033 0.83
1/4 .250 6.35 .143 3.63 .025 0.63 .045 1.14 .035 0.88
3/8 .375 9.52 .214 5.45 .030 0.76 .050 1.27 .040 1.01
1/2 .500 12.70 .286 7.25 .033 0.83 .063 1.60 .048 1.21
5/8 .625 15.87 .357 9.06 .037 0.93 .067 1.70 .052 1.32
3/4 .750 19.05 .428 10.88 .042 1.06 .072 1.82 .057 1.44
7/8 .875 22.22 .500 12.70 .050 1.27 .080 2.03 .065 1.65
1 1.000 25.40 .570 14.48 .050 1.27 .090 2.28 .070 1.77
1-1/4 1.250 31.75 .714 18.13 .067 1.70 .107 2.71 .087 2.20
1-1/2 1.500 38.10 .857 21.76 .075 1.90 .115 2.92 .095 2.41
1-3/4 1.750 44.45 1.000 25.40 .087 2.20 .127 3.22 .107 2.71
2 2.000 50.80 1.140 28.96 .090 2.28 .130 3.30 .110 2.79
3 3.000 76.20 1.710 43.54 .105 2.65 .145 3.67 .125 3.18
TABLE 2
Mandrel Dimensions for Bend Testing
Tubing Size Mandrel Diameter
in. mm.
1/8 through 1/2 3/8 9.5
5/8 through 1 5/8 15.9
1-1/4 through 2 7/8 22.2
3 1-1/8 28.6
PROPERTY UNIT REQUIREMENT TEST METHOD
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TABLE 3
Requirements
PROPERTY UNIT REQUIREMENT TEST METHOD
PHYSICAL
Dimensions
Inches (mm)
In accordance with Table 1
Section 4.3.1
Longitudinal Change Percent +1, -5 ASTM D 2671
Tensile Strength psi (MPa) 1500 minimum (10.3)
Tensile Stress
at 100 percent elongation psi (MPa) 1500 maximum(10.3) Section 4.3.2
ASTM D 2671
Ultimate Elongation Percent 250 minimum
Specific Gravity --- 1.5 maximum ASTM D 2671
Hardness Shore A 80 ± 5 ASTM D 2240
Low Temperature Flexibility
4 hours at -70 ± 3°C (-94 ± 5°F) --- No cracking Section 4.3.3
Heat Shock
4 hours at 200 ± 3°C (392 ± 5°F) --- No dripping, flowing or cracking Section 4.3.4
Heat Resistance (Aging)
168 hours at 121 ± 3°C (250 ± 5°F)
Followed by tests for:
--- --- Section 4.3.5
Tensile Strength psi (MPa) 1200 minimum (8.3) Section 4.3.2
Ultimate Elongation Percent 175 minimum ASTM D 2671
Copper Stability
168 hours at 121 ± 3°C (250 ± 5°F)
Followed by test for:
--- No brittleness, glazing or
cracking of tubing; no pitting or
blackening of copper.
Section 4.3.6
Ultimate Elongation Percent 175 minimum Section 4.3.2
ELECTRICAL
Dielectric Strength
Volts/mil
(Volts/mm)
300 minimum (11,800)
Section 4.3.7
ASTM D 2671
Volume Resistivity ohm-cm 1011 minimum ASTM D 257
CHEMICAL
Corrosive Effect
16 hours at 150 ± 3°C (302°± 5°F)
---
Noncorrosive
Section 4.3.8
ASTM D 2671
Flammability Seconds Self-extinguishing within 15
seconds ASTM D 2671
Procedure A
Fungus Resistance
Followed by tests for:
Tensile Strength
Ultimate Elongation
Dielectric Strength
Fungus Resistance
---
psi (MPa)
percent
volts/mil
(kV/mm)
---
---
1500 (10.3) minimum
225 minimum
300 (11.8) minimum
Or
Rating of 1 or less
ISO 846
Method B
Section 4.3.2
ASTM D 2671
ASTM D 2671
ASTM G21
SPECIFICATION RT-511 ISSUE 11 Page 9
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TABLE 3
Requirements
(continued)
PROPERTY UNIT REQUIREMENT TEST METHOD
CHEMICAL (continued)
Fluid Resistance
Lubricating Oil (MIL-PRF-23699)
Hydraulic Fluid (MIL-PRF-46170)
Isopropyl Alcohol
De-Icing Fluid (SAE-AMS-1424)
Water
Cleaning Fluid (A-A-59133)
Followed by tests for:
---
---
Section 4.3.9
Tensile Strength psi (MPa) 1000 minimum (6.9) Section 4.3.2
Ultimate Elongation Percent 250 minimum
Weight Increase Percent 5 maximum Section 4.3.9
Fluid Resistance
24 hours at 25 ± 3°C (77 ± 5°F) in:
JP-8 Fuel (MIL-DTL-83133)
Lubricating Oil (MIL-PRF-7808)
Diesel Fuel (MIL-DTL-46162)
Followed by tests for:
--- --- Section 4.3.9
Tensile Strength psi (MPa) 1000 minimum (6.9) Section 4.3.2
Ultimate Elongation Percent 250 minimum
Weight Increase Percent 20 maximum Section 4.3.9
Fluid Resistance
24 hours at 71 ± 3°C (160 ± 5°F) in:
Hydraulic Fluid (MIL-PRF-46170)
Followed by tests for:
--- --- Section 4.3.9
Tensile Strength psi (MPa) 1000 minimum (6.9) Section 4.3.2
Ultimate Elongation Percent 250 minimum
Weight Increase
Percent 1/8 through 7/8: 25 maximum
1 through 3: 15 maximum Section 4.3.9
Fluid Resistance
24 hours at 25 ± 3°C (77 ± 5°F) in:
Hydraulic Fluid (MIL-PRF-5606)
Followed by tests for:
Tensile Strength
Ultimate Elongation
Weight Increase
---
--- Section 4.3.9
psi (MPa) 1000 minimum (6.9) Section 4.3.2
Percent 250 minimum
Percent 15 maximum Section 4.3.9