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锅炉焊接和维修
1. Butt
welding must be used for tube sheets whenever
possible.
在可能的情况下，管板须采用对接焊。
butt
[b
?
t]n
对接，屁股
whenever
possible
只要可能
2. They did not require any
radiographic testing.
他们不要求射线检测。
radiographic
[,reid
< br>?
o'gr?
f
?
k] a
射线照相术的
3. The weld metal shall be
deposited by the manual shielded metal arc process
using low hydrogen electrodes.
熔敷金属需用手工电弧焊的方法使用低氢焊条。
weld metal
熔敷金属，焊缝金属
shield
[
?i?ld]
v
防御，起保护作用<
/p>
manual shielded metal arc
welding
自动保护金属极电
shielded ['
?
i:ld
?
d]
a
防护的，屏蔽的
弧焊
electrode [
?
'lektr
??
d]n
电极
4.
The
initial
layer
of
weld
metal
shall
be
deposited
over
the
entire
area
with
a
1/8
in.
maximum
diameter
electrode.
< br>第一层熔敷金属须用最大直径为
1/8
英寸的焊条焊满。
initial [
?
'n
???
l]a
最初的
deposit [d
?
'p
?
z
?
t]v
使沉积，存放
5.
Subsequent
layer
shall
be
deposited
with
a
5/32in.
maximum
diameter
electrode
in
a
manner
to
ensure
tempering of the prior beads and their
heat affected zones.
后续焊层须用最大直径为
5/32
英寸的焊条焊接。焊接时须保证先焊的焊道及其热影响区得到回火。<
/p>
subsequent
['s
?
bs
?
kw(<
/p>
?
)nt]a
后来的，随后的
prior
['pra
??
]a
先前的，在先的
bead
[bi?d]
熔敷焊道，焊道，珠子
butt
welding
对接焊
6.
Prior
to
welding,
the
rivets
or
staybolts
from
which
the
cracks
extend
and
the
adjacent
rivets
should
be
removed.
在进行焊接前，应拆除有裂缝处及邻近的铆钉和接撑。
prior to
在……之前
adjacent [
?
'd
?
e
?
s(
?
)nt]a
邻近的，毗连的
staybolt
['steib
?
ult]
n
支撑螺栓
rivet ['r
?
v
?
t]n
铆钉
7.
The cracks should be prepared for welding by
chipping, grinding or gouging.
裂缝处应用凿子凿去或磨平，以备焊接。
be prepared for
为……做准备
chipping
剥落，修整表面
gouge[ga<
/p>
?
d
?;
gu?d?
]v
圆凿
gouging
刨削凿
8. In riveted joints,
cracks which extend past the inner edge of the
plate lap should be welded from both side.
在铆接中，
若裂缝延伸超过搭接钢板的内边时，应进行双面的焊补。
9. Rivet holes should be reamed before
new rivets are driven.
铆孔在铆接新铆钉前，应先进行铰孔。
ream
[ri?m]
v
铰孔
10. Threaded staybolt holes should be
re-tapped after welding.
焊接后，带螺纹的拉撑孔应重新攻丝。
11.
Tubes
may
be
seal
welded
provided
the
ends
of
the
tubes
have
sufficient
wall
thickness
to
prevent
burn-through.
倘若在管端有足够的百度能防止烧穿时，管子可进行封焊。
seal weld
密封焊接
provided
假如，倘若
sufficient[s
?
'f
??
(
?
)nt]a
足够的，充分的
burn-
through
烧穿
12. Prior to welding, the area should
be examined by an appropriate method of NDE to
assure that there are no
cracks
radiating from the rivet holes.
焊接前，应用合
适的无损检验方法以验证铆孔四周没有辐射状裂纹。
prior to
在……之前
NDE(non-destructive
examination)
无损检测
appropriate[
?
'pr
?
?
pr
??
t]a
适当的，恰当的
radiate['re
?
d
?
e
?
t]v
辐射，从中心向各方发展
13. The root opening should be uniform
around the patch.
在补板四周焊缝根部的间隙应保持相等。
root opening
根部间隙
patch
补丁
14. The gas tungsten are
welding process should be used for the initial
pass on the inside of the tube and for the
initial pass joining the patch to the
tube.
在管子内部的第一道焊缝及将补板焊到管子上的第一道焊缝，均应采用气体
保护钨极电弧焊的方法。
tungsten['t
??st(?
)n]n
钨
initial
最初的
15.
The
purpose
of
a
welding
procedure
specification(WPS)
and
procedure
qualification
record(PQR)
is
to
determine
that
the
weldment
proposed
for
construction
is
capable
of
providing
the
required
properties
for
its
intended
application.
焊接工艺规范
(WPS)
及工艺评定记录
(PQR)
的目的是确定结构焊
件能够满足预定的使用条件下要求的性能。
procedure
[pr
?'si?d??
]n
规程，工艺，程序
qualification [,kw
?
l
?
f
?
'ke
??
(
?
)n]n
资格，条件
specification [,spes
?
f
?
'ke
??
(
?
)n]n
规格，规范，说明书
weldment
['w
?
ldm
?
nt]n
焊件
16. In some cases, a dent can be
repaired by mechanically pushing out the
deformation.
在一些情况下，凹陷可通过机械方法顶出来修复。
dent
凹陷，凹痕
push out
顶出，推出
17. Where circumstances
indicate that the crack is likely to recur,
consideration should be given to removing the
cracked area and installing a patch or
taking other acceptable corrective measures.
当有可能发生再裂时，应考虑挖去有裂纹的区域，并补上一块板，或采用其它可接受的纠正措施。< /p>
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