- •Unit 1. Welding
- •1.1 General Welding Requirements
- •1.1 General Welding Requirements
- •1.2 Welding Procedure Qualification
- •1.1 Welding Procedure Qualification
- •1.2 Weld Repairs and Temporary Attachment Welds
- •Weld Repairs
- •Unit 2. Production testing of base metal welds
- •Production testing of base metal welds Chemical Composition of Production Welds
- •Production Test Plates
- •Unit 3. Weld overlay
- •3. Weld overlay
- •3.1 General Requirements.
- •3.2 Preheat and Heat Treatments During Weld Overlay
- •3.3 Production Testing of Weld Overlay
- •3.3.1 Chemical Composition of Weld Overlay
- •3.3.2 Ferrite Content of Weld Overlay
Unit 1. Welding
1.1 General Welding Requirements
Exercise 1. Study the vocabulary
requirement требование
qualified аттестованный
Purchaser-accepted принятый Заказчиком
welding procedure specification (WPS) техусловия на методику сварки
prior to до начала; перед
to apply weld overlay изготавливать наплавку
base metal surface поверхность основного металла
machining механическая обработка
grinding шлифовка
blast cleaning абразивоструйная очистка
degreasing обезжиривание
to complete завершать
internal components внутреннее оборудование
thickness толщина
area of attachment место соединения
to determine определять
mock-up test модельные испытания
outline описывать
acceptable разрешенный
pressure-containing weld сварной шов, работающий под давлением
shielded metal arc welding (SMAW) дуговая сварка металлическим
электродом с защитой зоной сварки
submerged arc welding (SAW) дуговая сварка под флюсом
gas metal arc welding (GMAW) дуговая сварка металлическим плавящимся электродом с защитой зоной сварки
flux cored arc welding (FCAW) дуговая сварка трубчатым электродом
root pass application проход корня шва
double-welded butt joint двусторонне стыковое соединение
provided при условии
root pass корневой валик
to remove удалять
back gouging строжка
NDE (non-destructive testing) НК (неразрушающий контроль)
require требовать
satisfactorily удовлетворительным образом
to perform выполнять
to obtain получать
written authorization письменное разрешение
Exercise 2. Complete the table and translate the words into Russian.
noun |
verb |
adjective |
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require |
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qualified |
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apply |
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acceptable |
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complete |
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determine |
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|
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performed |
authorization |
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|
|
remove |
|
Exercise 3. Write the technical terms from exercise 1 into correct columns. Sometimes several variants are possible.
operations |
welding |
components |
documentation |
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|
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Exercise 4. Read and translate the text.
1.1 General Welding Requirements
1. Fabrication welding shall be in accordance with qualified and Purchaser-accepted welding procedure specifications.
2. Welding shall be performed by qualified welders or welding operators.
3 Prior to welding or applying weld overlay, base metal surfaces shall be prepared by machining, grinding or blast cleaning, followed by a degreasing operation.
4 Welding to ferritic materials shall be completed prior to final PWHT.
5. Internal attachments to the austenitic stainless steel weld overlay shall be completed after PWHT. The minimum overlay thickness in the area of the attachment shall be as determined by the mock-up test outlined in Section 11.1 item f (3).
6. Acceptable methods of welding are as follows:
a. Acceptable methods of welding for pressure-containing welds are shielded metal arc (SMAW) and submerged arc (SAW).
b. Gas metal arc welding (GMAW) may be used for root pass applications in double-welded butt joints, provided the root pass is completely removed by back gouging.
c. Gas tungsten arc welding (GTAW) shall be permitted for root-pass applications if the NDE required for Type No. 1 welds can be satisfactorily performed.
d. Flux cored arc welding (FCAW) shall be permitted for the welding of non-pressure-containing internal components.
e. Manufacturer must obtain written authorization from Purchaser to use other welding methods.
Exercise 5. Match the halves of the sentences.
1. Fabrication welding shall be in accordance with |
a. Purchaser to use other welding methods.
|
2. Gas metal arc welding (GMAW) may be used for |
b. qualified and Purchaser-accepted welding procedure specifications.
|
3. Welding shall be performed by |
c. base metal surfaces shall be prepared by machining, grinding or blast cleaning. |
4. Prior to welding or applying weld overlay |
d. root pass applications in double-welded butt joints. |
5. Manufacturer must obtain written authorization from |
e. qualified welders or welding operators. |
Exercise 6. Answer the questions.
1. What are the permittable welding procedures?
2. Who shall welding be performed by?
3. When shall welding to ferritic materials be completed?
4. How shall overlay thickness be determined?
5. When can Manufacturer use other welding methods?
Exercise 7. Use the answers to the questions to retell the text.