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INTRODUCTION TO CAB

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Time of issue:2019-09-24 10:53
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(Summary description)

INTRODUCTION TO CAB

(Summary description)

Categories:Resources
Author:
Origin:
Time of issue:2019-09-24 10:53
Views:

Information

Controlled Atmosphere Brazing (CAB) is very much similar to regular brazing in that:

Brazing is ideally suited to butt and lap joints, offering unparalleled strength

Brazing facilitates uniform material strength, as the process is slow and promotes even sealing

Brazing often eliminates the need for epoxy

Brazing allows for unique assemblies that would be difficult to manufacturer using other techniques

Unlike regular brazing, controlled atmosphere brazing can occur in either a special gas atmosphere or a vacuum. This is beneficial when oxidation may reduce joint strength and/or have a negative cosmetic effect.

Common atmospheres used are either inert gas or a vacuum. However, there are a large number of possible atmosphere options. Additionally:

Brazed products often retain a clean appearance longer than other methods

Brazed products can have a low unit cost when used in mass production, as multiple joints can be brazed at one time

CAB is fluxless brazing, eliminating the need for post-braze cleaning and further reducing costs

Because brazing requires a considerable amount of heat, it is best suited to products that are heat resistant. Automobile parts, farming equipment, and furnace components are examples of parts and components that may need to frequently withstand temperatures of 350 degrees or greater, so they are ideal candidates for this technology.

These are some of the parts and materials best suited for CAB:

Small parts, starting at 2 inches

Large parts too – some brazing furnaces can hold parts up to 5 feet in length with a height of 6 inches and a width of 12 inches

Parts that require high joint strength

Carbon steel

Cast iron

Stainless steel

Nickel alloys

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