resistance spot welding defects ppt
Tài liệu Resistance Spot Welding pptx
Ngày tải lên :
25/01/2014, 20:20
... shows a
resistance spot weld nugget compared to a gas
tungsten-arc (TIG) spot weld.
RESISTANCE SPOT TUNGSTEN ARC SPOT
Figure 4-1. Resistance And TIG Spot Weld
Comparison
The gas tungsten-arc spot ... the various parts
of the resistance spot welding machine are identified.
UG-003 335 Page 6
SECTION 4 − FUNDAMENTALS OF RESISTANCE SPOT
WELDING
4-1. Principle
Resistance welding is accomplished ... Of Resistance Spot
Welding
Y SPOT WELDING can be hazardous. Read and
follow Safety Section at front of this book as well
as the Owner’s Manual and all labels on the
equipment.
Resistance spot welding...
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Tài liệu Bài 4. Hàn (welding) ppt
Ngày tải lên :
23/12/2013, 07:19
... mối
(butt welding)
Hàn siêu âm
(ultrasonic welding)
Hàn nổ
Hàn nguội
Hàn điện tiếp xúc
(contact welding)
Hàn ma sát
(friction welding)
Hàn khuyếch tán trong
chân không
Hàn cao tần
Hàn rèn
Hàn điểm
(spot ... Tan
Tien
Tien
-
-
Phan
Phan
Hoang Long
Hoang Long
+
+
H
H
à
à
n
n
đi
đi
ể
ể
m
m
(
(
spot welding
spot welding
)
)
S
S
ơ
ơ
đ
đ
ồ
ồ
h
h
à
à
n
n
M
M
á
á
y
y
h
h
à
à
n
n
b
b
ấ
ấ
m
m
M
M
á
á
y
y
h
h
à
à
n
n
b
b
ấ
ấ
m
m
x
x
á
á
ch
ch
tay
tay
General ...
H
H
à
à
n
n
đư
đư
ờ
ờ
ng
ng
(
(
seam welding
seam welding
)
)
S
S
ơ
ơ
đ
đ
ồ
ồ
h
h
à
à
n
n
M
M
á
á
y
y
h
h
à
à
n
n
đư
đư
ờ
ờ
ng
ng
1
Đ
Đ
4.
4.
H
H
n
n
(
(
welding
welding
)
)
General Mechanical...
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- 398
- 1
Tài liệu ROBOT GỠ XỈ HÀN_ WELDING SLAG REMOVING MOBILE ROBOT ppt
Ngày tải lên :
17/01/2014, 06:20
... Robot for
Lattice Type of Welding Line”, KSME International Journal, Vol. 16, No. 1, pp. 83-93,
2002.
[6] B.O. Kam, Y.B. Jeon and S.B. Kim, ”Motion Control of Two-Wheeled Welding
Mobile Robot ...
[7] Y.B. Jeon, B.O. Kam, S.S. Park and S.B. Kim, ”Seam Tracking and Welding Speed
Control of Mobile Robot for Lattice Type of Welding , Proc. of the 6
th
IEEE Int.
Symposium on Industrial Electronics
, ... HCM, Việt nam, pp. 7-14, tháng T 2002.
[2] Nguyễn Tấn Tiến và đồng sự, ”Control of Two-Wheeled Welding Mobile Robot: Part
II – Dynamic Model Approach,
Hội nghị Khoa học và Kỹ thuật lần thứ...
- 7
- 446
- 2
Tài liệu G-Spot Guide pptx
Ngày tải lên :
17/01/2014, 16:20
... pushes towards you,
G -Spot Guide
G -spot is the nickname for the Grafenberg spot, named after the guy who noted its erotic
significance in the 1950's. The G -spot in women is analogous ... find a slightly
raised area. This is the G spot. It might not be raised, but it will engorge once your female
starts to come.
Don't poke this spot yet. Don't do anything with it, ... had this theory
that there was an area within the vagina, which was called the Grafenberg spot or G -spot,
which not only was sexually sensitive but which could trigger bigger and better female...
- 4
- 220
- 0
Tài liệu WELDING AND COATING METALLURGY ppt
Ngày tải lên :
24/01/2014, 00:20
... Lamellar Tearing from Welding
WELDING AND COATING METALLURGY2 34 of 69
FOR INTERNAL USE ONLY
13 WELDING PROCEDURAL GUIDELINES
Choose - Surfacing consumable
- Welding process
WHAT ... with welding.
WELDING AND COATING METALLURGY2 16 of 69
FOR INTERNAL USE ONLY
In carbon or carbon-manganese steels (i.e., those with steep hardening curves as shown in Figure
35!!) welding ... meet stringent property requirements as well as
avoiding cracking and other defects during welding.
WELDING AND COATING METALLURGY2 44 of 69
FOR INTERNAL USE ONLY
Figure 16...
- 69
- 2.1K
- 0
Tài liệu BÁO CÁO " HOÀN THIỆN QUI TRÌNH PCR ĐA MỒI PHÁT HIỆN ĐỒNG THỜI VI RÚT GÂY BỆNH ĐỐM TRẮNG (White Spot Syndrome Virus) VÀ VI RÚT GÂY BỆNH CÒI (Monodon Baculovirus) Ở TÔM SÚ (Penaeus monodon) CÓ SỬ DỤNG GEN β-ACTIN LÀM NỘI CHUẨN " pptx
Ngày tải lên :
25/02/2014, 02:20
... tăng. Những vi rút gây nhiều thiệt hại cho nghề nuôi tôm sú
là vi rút gây bệnh đốm trắng (White Spot Syndrome Virus - WSSV), vi rút gây
bệnh còi (Monodon Baculovirus - MBV), vi rút gây bệnh đầu ... Black, K. A Mccoll, R. A. J. Hodgson, and E. M Bernorth. 2004.
Survey for the presence of White Spot Syndrome virus in Australian
crustaceans. Australian Veterinary Journal. 82 (4):
Khawsak, ... Molecular and cellular Probes. 22: 177-183
Manual of diagnostic test for aquatic animal, 2006. White spot disease.
www.oie.int/eng/normes/finnual
.
Manivannan, S., D.K. Otta, I. Karunasagar, I. Karunasagar,...
- 8
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Tài liệu Welders Handbook For Gas Shielded Arc Welding, Oxy Fuel Cutting & Plasma Cutting pptx
Ngày tải lên :
25/02/2014, 10:20
... 1
CONTENTS
Introduction
Fusion welding 2
Why use welding? 3
Arc welding processes 4
Welding terms 5
MIG/MAG welding 6
TIG welding 10
Plasma welding 17
Welding sheet 18
Welding plate 20
Welding pipes 22
Defects in ... 35
TIG WELDING DATA
Typical conditions for TIG weldingTypical conditions for TIG welding
Typical conditions for TIG weldingTypical conditions for TIG welding
Typical conditions for TIG welding
T ... pipes 22
Defects in welds 24
The right gas:
MIG/MAG welding 26
TIG welding 29
Welding data:
MIG/MAG welding 30
Flux cored electrodes 33
TIG welding 34
Oxy-fuel gas cutting 37
Plasma cutting 44
Safety...
- 48
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Xpert MTB/RIF test for detection of pulmonary tuberculosis and rifampicin resistance (Protocol) pptx
Ngày tải lên :
06/03/2014, 04:20
... printable
test result. Example s are:
1. MTB detected; RIF resistance not detected.
2. MTB detected; RIF resistance detected.
3. MTB detected; RIF resistance indeterminate.
4. MTB not detected; RIF not ... indicator of multidrug
resistance. International Journal of Tuberculosis and Lung
Disease 2000;4(5):481–4.
9Xpert MTB/RIF test for detection of pulmonary tuberculosis and rifampicin resistance (Protocol)
Copyright ... rifampicin resistance (Protocol)
Copyright â 2012 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.
Xpert MTB/RIF test for detection of pulmonary tuberculosis
and r ifampicin resistance...
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- 0
Health and Safety in Welding and Allied Processes FIFTH EDITION ppt
Ngày tải lên :
06/03/2014, 07:20
... likely to be
applicable to welding activities.
The general run of welding work on mild steel plate, often with a
black surface, will be of very low contrast. Although arc welding is
an almost unique ... heat to give toxic
fumes.
Areas where welding is normally conducted should be kept free
from all combustible materials. When it is necessary to undertake
welding work in areas not specifically ... aid,
including resuscitation techniques, are available.
12 Health and Safety in Welding and Allied Processes
– Welding
the parent metal,
the filler and its flux,
shielding gases,
the action of...
- 265
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- 1
Báo cáo khoa học: Identification of carbonic anhydrase 9 as a contributor to pingyangmycin-induced drug resistance in human tongue cancer cells ppt
Ngày tải lên :
06/03/2014, 22:21
... whether the
resistance was associated with the overexpression of
well-documented resistance- related molecules MDR1,
multidrug resistance- associated protein 1 (MRP1), and
breast cancer resistance ... in cancer drug
resistance research have been made, indicating that
ATP-binding cassette transporters play important roles
in cancer drug resistance but cannot fully explain the
resistance phenomenon, ... 18.78-fold increased resistance to PYM as
compared with Tca8113 cells, and cross -resistance to cisplatin, pirarubicin,
paclitaxel, adriamycin, and mitomycin. We found that the resistance was
not...
- 13
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- 0
ANTIBIOTIC RESISTANCE OF ESCHERICHIA COLI ISOLATED FORM POULTRY WORKERS, PATIENTS AND CHICKEN IN THE EASTERN PROVINCE OF SAUDI ARABIA ppt
Ngày tải lên :
08/03/2014, 09:20
... resistance in Saudi Arabia
â 1999 Blackwell Science Ltd
280
both groups, resistance rates remained significantly lower in
E. coli isolated from the workers than those from chicken.
Multidrug resistance ... despite
the similarity of resistance patterns to the tested antibiotics in
E. coli-chicken E. coli-patient
isolates isolates t-test
No. % No. %
Drugs tested resistance tested resistance P-value Significance
Ampicillin ... such resistance could
be either natural or due to poultry as a possible source of the
spectinomycin resistance pool for humans.
Exposure to antibiotics at work may also contribute to
increased resistance...
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- 1