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Folder PCA0002-2b

 Container

Contains 49 Results:

…and the “Spacers” who ensure proper alignment and spacing between the two pipes., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-11
Scope and Contents

PC9039-11/13

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

This drawing shows a cut-away of the ½-inch-thick walls of the aligned pipe. Note the thirty-degree bevel angle which forms the pie-shaped opening to be filled by the weld metal. The lower 1/16th of an inch of the pipe end is called the root face or “land”. The spacing between the pipes at this point must be 3/32nds of an inch., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-12
Scope and Contents

Weld A

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

Each joint of pipe welded receives a permanent weld identification number which is not only painted on the side of the pipe, but is recorded in the “as-built” drawing (which, show the location of every weld by number) and is imprinted on the radiograph of the completed weld., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-13
Scope and Contents

PC9037-18

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

The first weld pass, called the “root pass”, is the most crucial of all weld passes., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-14
Scope and Contents

PC9035-16/11

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

It’s the foundation for building a sound weld., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-15
Scope and Contents

Weld-B

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

Welding is a joining process wherein fusion is obtained by heating with an arc between a covered metal electrode or a consumable wire and the work. In this instance, the root pass is being made with the semi-automatic gas-metal-arc welding process, in which the consumable wire is used., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-16
Scope and Contents

PC9035-13

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

After the root pass is completed, the pair of welders moves on to the next joint, and a new pair begins the second pass, called the “hot pass”., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-17
Scope and Contents

PC9035-1

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

The hot pass is made primarily for burning out or melting out any unnoticed surface defects., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-18
Scope and Contents

Weld-C

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline

The hot pass, as are all remaining passes, is made with the shielded-metal-arc process, using the covered metal electrodes, which is the more conventional of the two welding processes used on the project., 1976-07

 Item — Folder: PCA0002-2b
Identifier: PCA0002-2b-19
Scope and Contents

PC9043-12

Dates: Issued: 1976-07
Found in: Alaska State Library - Historical Collections Finding Aids / PCA 2, Alyeska Pipeline Service Company : Trans-Alaska Pipeline Construction Collection, 1976-1977 / PCA 2 Folder 2b: ONE WELD On the trans Alaska pipeline