IPC 7711A - 第171页
EQUIPMENT REQUIRED Soldering system(s) 1 or 2 Soldering handpieces Blade tip MATERIALS Flux-cored solder Flux PROCEDURE 1. Select a blade tip appropriate for the component being soldered and the clear- ances available on…
12. Repeat steps 6 through 9 on each row.
13. Clean, if required, and inspect.
NOTES
IPC-7711A
Number: 5.5.5
Revision:
Date: 2/98
Subject: Gull Wing Installation
Page2of2
Copyright Association Connecting Electronics Industries
Provided by IHS under license with IPC
Not for Resale
No reproduction or networking permitted without license from IHS
--``,``,-`-`,,`,,`,`,,`---
EQUIPMENT REQUIRED
Soldering system(s)
1 or 2 Soldering handpieces
Blade tip
MATERIALS
Flux-cored solder
Flux
PROCEDURE
1. Select a blade tip appropriate for the component being soldered and the clear-
ances available on the board. The tip should allow each row to be soldered in one
pass. (See Figure 1.)
2. Start with tip temperature of approximately 315°C and change as necessary.
3. Tin the tip on the beveled edge and clean the surface on the sponge. If this does
not produce a clean shiny surface use the manufacturer’s recommended meth-
ods to remove any oxidation and/or discoloration. (See Figure 2.)
4. Flux the row to be soldered. (See Figure 3.)
5. Place wire solder across the row of leads at the first bend that is in contact with
the lands. (See Figure 4.)
6. Bring the clean tip, free of any solder, bevel face down on the wire solder at the
inside bend of the joint. Hold for a moment, until the solder has wetted to the
leads and lands.
7. Keeping the bevel flat on the leads, draw the blade toward the toe and off the end
of the lead.
Figure 1 Select Tip
Figure 2 Tin Tip
Figure 3 Apply Flux
Figure 4 Place Solder
7711A
Rework of
Electronic Assemblies
Revision:
Date: 2/98
Gull Wing Installation
Blade Tip with Wire
Number: 5.5.6
Product Class: R, F, W, C
Skill Level: Advanced
Level of Conformance: Medium
Material in this manual, IPC-7711 Rework of Electronic Assemblies, was voluntarily established by Technical Committees of
IPC. This material is advisory only and its use or adaptation is entirely voluntary. IPC disclaims all liability of any kind as to the
use, application, or adaptation of this material. Users are also wholly responsible for protecting themselves against all claims
or liabilities for patent infringement. Equipment referenced is for the convenience of the user and does not imply endorsement
by IPC.
Page1of2
Copyright Association Connecting Electronics Industries
Provided by IHS under license with IPC
Not for Resale
No reproduction or networking permitted without license from IHS
--``,``,-`-`,,`,,`,`,,`---
NOTES
IPC-7711A
Number: 5.5.6
Revision:
Date: 2/98
Subject: Gull Wing Installation
Page2of2
Copyright Association Connecting Electronics Industries
Provided by IHS under license with IPC
Not for Resale
No reproduction or networking permitted without license from IHS
--``,``,-`-`,,`,,`,`,,`---