收藏本站
Quality Crimp Handbook
SECTION 7
MEASUREMENT
Pull Force Testing
1. Cut wire length to approximately 150mm (6”) long.
2. Strip one end to 13mm (.50”), or long enough so no
wire insulation is under the insulation grip, or
loosen the insulation crimp so it has no grip on the
insulation of the wire.
3. Terminate the appropriate terminal to the wire to
the nominal crimp height.
4. Visually inspect the termination for bell mouth, wire
brush and cut strands.
5. Set pull tester to 254mm per minute (1.00" per
minute). For most applications, a higher rate will
not have a significant impact on the data. The
slower rate prevents a sudden application of force
or jerking that snaps strands. Verify higher pull
rates with data taken at 1.00” per minute.
6. If necessary, knot the un-terminated end of the wire
(If insulation slips on wire).
7. Regardless of pull tester type, both wire and
terminated end must be securely clamped. (Note:
Clamp terminal contact interface, do not clamp
conductor crimp)
8. Activate pull test.
a. Record pull force readings. A minimum of five
pull force measurements should be done to
confirm each set-up. A minimum of 25 readings
should be taken for determining process
capability.
b. Compare lowest reading to minimum pull force
specification.
Note: High variability and lower value of C pk (see
section 8 for explanation of C pk ) are common
when two wires are crimped together. The
variability is due to more variation in conductor
brush, conductor bell mouth and fewer strands of
one wire being in contact with the serrations on the
terminal barrel. A double wire crimp is considered
no better than the smallest wire crimped. Higher
pull force readings can be seen if both wires are
gripped and pulled exactly together. Pulling each
wire individually will result in a much lower pull
force reading. If both wires are of the same size,
the top wire will normally result in a lower reading than
the bottom wire due to the effects of the terminal
serrations.
Wire Chart
Note: Pull force has only a minimum specification. For C pk
calculations, the average reading is assumed nominal and
the upper specification limit is set so C p and C pk are equal.
High pull force readings that increase the standard
deviation can lower C pk even if the mean and lowest
reading are increased.
Test Values for Pull Force Test
UL486A
Size of Conductor Pullout Force*
AWG mm 2 Lbf N
30 0.05 1.5 6.7
28 0.08 2 8.9
26 0.13 3 13.4
24 0.20 5 22.3
22 0.324 8 35.6
20 0.519 13 57.9
18 0.823 20 89.0
16 1.31 30 133.5
14 2.08 50 222.6
12 3.31 70 311.5
10 5.261 80 356.0
8 8.367 90 400.5
*Consult individual specifications
Crimp Height Testing
1. Complete tool set-up procedure.
2. Crimp a minimum of five samples.
3. Place the flat blade of the crimp micrometer across the
center of the dual radii of the conductor crimp. Do not
take the measurement near the conductor bell mouth.
4. Rotate the micrometer dial until the point contacts the
bottom radial surface. If using a caliper, be certain not
to measure the extrusion points of the crimp.
5. Record crimp height readings. A minimum of five crimp
height readings is necessary to confirm each set-up. A
minimum of 25 readings is necessary to determine
capability.
6. Check crimp height every 250 to 500 parts throughout
the run.
Order No: TM-638000029
Revision: D
Release Date: 09-04-03
Revision Date: 12-23-09
UNCONTROLLED COPY
Page 12 of 24
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
555-5403F LED CBI 2MM YLW 5V RES QUAD TH
ASFLMPC-25.000MHZ-Z-T OSC 25.000 MHZ CMOS MEMS SMD
555-5009F LED CBI 2MM RED 5V RES QUAD TH
P51-50-A-O-P-5V-000-000 SENSOR 50PSI 7/16-20 UNF 2B 5V
P51-15-A-O-P-5V-000-000 SENSOR 15PSI 7/16-20 UNF 2B 5V
P51-750-A-M-P-5V-000-000 SENSOR 750PSI M10-1.0 6G 1-5V
P51-500-A-M-P-5V-000-000 SENSOR 500PSI M10-1.0 6G 1-5V
P51-300-A-M-P-5V-000-000 SENSOR 300PSI M10-1.0 6G 1-5V
相关代理商/技术参数
11-01-0103 功能描述:折皱器 CRIMP HAND TOOL RoHS:否 制造商:Hirose Connector 类型: 描述/功能:Cable and Shield Crimper
11-01-0105 功能描述:折皱器 PNEUMATIC HAND TOOL RoHS:否 制造商:Hirose Connector 类型: 描述/功能:Cable and Shield Crimper
1101-01-0519 制造商:Concord Electronics Inc 功能描述:PTFE Insulated Terminal PIN 8.3mm 4.36mm Electro-Solder Over Copper
11-01-0107 制造商:MOLEX 功能描述:
11-01-0110 功能描述:手工工具 HAND TOOL-40682 RoHS:否 制造商:Molex 产品:Extraction Tools 类型: 描述/功能:Extraction tool
11-01-0111 功能描述:手工工具 HAND TOOL WITH 11-11-0173 RoHS:否 制造商:Molex 产品:Extraction Tools 类型: 描述/功能:Extraction tool
11010117 制造商:MOLEX 制造商全称:Molex Electronics Ltd. 功能描述:Hand Crimper
11-01-0117 功能描述:折皱器 HTR8558A HANDTOOL W/11-11-0183 LOCATOR RoHS:否 制造商:Hirose Connector 类型: 描述/功能:Cable and Shield Crimper