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參數資料
| 型號： | 103643 |
| 英文描述： | ADHESIVE LOCTITE 648 50ML |
| 中文描述： | 樂泰膠648毫升 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 31K |
| 代理商： | 103643 |
Technical Data Sheet
Product 648
Worldwide Version, October 1995
NOT FOR PRODUCT SPECIFICATIONS
THE TECHNICAL DATA CONTAINED HEREIN ARE INTENDED AS REFERENCE ONLY.
PLEASE CONTACT LOCTITE CORPORATION QUALITY DEPARTMENT FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS PRODUCT.
ROCKY HILL, CT FAX: +1 (860)-571-5473 DUBLIN, IRELAND FAX: +353-(1)-451 - 9959
PRODUCT DESCRIPTION
LOCTITE
Product 648 is a single component anaerobic
retaining adhesive which develops high strength rapidly when
confined in the absence of air between close fitting metal
surfaces. This product has high temperature resistance
properties.
TYPICAL APPLICATIONS
Used to bond cylindrical fitting parts, particularly where strength
at elevated temperatures is required. Applications include
holding gears and sprockets onto gearbox shafts and rotors on
electric motor shafts.
PROPERTIES OF UNCURED MATERIAL
Typical
Value
Range
Chemical Type
Appearance
Specific Gravity @ 25
°
C
Viscosity @ 25
°
C, mPa.s (cP)
Brookfield RVT
Spindle 2 @ 20 rpm
DIN 54453, MV
D = 129 s
-1
after t=180secs
Flash Point (COC),
°
C
Urethane methacrylate
Green, fluorescent liquid
1.13
500
400 to 600
450
>100
300 to 600
TYPICAL CURING PERFORMANCE
Cure speed vs. substrate
The rate of cure will depend on substrate used. The graph
below shows shear strength developed with time on steel pins
and collars compared to different materials and tested
according to ISO 10123.
100
%
5min10min
30min1hr
Cure Time, Hours
3hr
6hr
24hr
72hr
0
25
50
75
Steel
Aluminium
Zinc Dichromate
Cure speed vs. bond gap
The rate of cure will depend on the bondline gap. The following
graph shows shear strength developed with time on steel pins
and collars at different controlled gaps and tested according to
ISO 10123.
0.15mm
0.05mm
0.25mm
5min 10min
30min 1hr
Cure Time, Hours
3hr
6hr
24hr
72hr
0
25
50
75
100
%
Cure speed vs. temperature
The rate of cure will depend on the ambient temperature. The
graph below shows shear strength developed with time on steel
pins and collars at different temperatures and tested according
to ISO 10123.
100
%
22°C
40°C
5 °C
5min 10min
30min 1hr
Cure Time, Hours
3hr
6hr
24hr
72hr
0
25
50
75
Cure speed vs. activator
Where cure speed is unacceptably long, or large gaps are
present, applying activator to the surface will improve cure
speed. The graph below shows shear strength developed with
time using ACTIVATOR N and T on zinc dichromated steel
pins and collars and tested according to ISO 10123.
100
%
5min 10min
30min 1hr
Cure Time, Hours
Act T
NoAcivao
Act N
0
25
50
75
3hr
6hr
24hr
72hr
TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties
Coefficient of thermal expansion, ASTM D696, K
-1
Coefficient of thermal conductivity, ASTM C177, W.m
-
1
K
-1
Specific Heat , kJ.kg
-1
K
-1
80 x 10
0.1
-6
0.3
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