ASME

QG-109 QG-109.2 DEFINITIONS:- brazing : a group of metal joining processes which produces coalescence of materials by heating them to a suitable temperature, and by using a filler metal having a liquidus above 840°F (450°C) and below the solidus of the base materials. The filler metal is distributed between the closely fitted surfaces of the joint by capillary action. brazing operator : one who operates machine or automatic brazing equipment. brazing temperature : the temperature to which the base metal(s) is heated to enable the filler metal to wet the base metal(s) and form a brazed joint. brazing temperature range : the temperature range within which brazing can be conducted. brazing, automatic: brazing with equipment which performs the brazing operation without constant observation and adjustment by a brazing operator. The equipment may or may not perform the loading and unloading of the work. brazing, block (BB) : a brazing process that uses heat from heated block...

QG-109  QG-109.1 GENERAL  Definitions of the more common terms relating to material-joining processes are defined in QG-109.2. There are terms listed that are specific to ASME Section IX. QG-109.2 DEFINITIONS arc seam weld : a seam weld made by an arc welding process. arc spot weld : a spot weld made by an arc welding process. arc strike : any inadvertent discontinuity resulting from an arc, consisting of any localized remelted metal, heat‐affected metal, or change in the surface profile of any metal object. The arc may be caused by arc welding electrodes, magnetic inspection prods, or frayed electrical cable. arc welding : a group of welding processes wherein coalescence is produced by heating with an arc or arcs, with or without the application of pressure, and with or without the use of filler metal. as‐brazed : adj. pertaining to the condition of brazements after brazing, prior to any subsequent thermal, mechanical, or chemical treatments. as‐welded : ...

ASME Section IX Important articles:- QG-109 DEFINITIONS -  Part- 1 Part- 2

The  ASME Boiler & Pressure Vessel Code  (BPVC) is an American Society of Mechanical Engineers (ASME) standard that regulates the design and construction of boilers and pressure vessels. The document is written and maintained by volunteers chosen for their technical expertise. The American Society of Mechanical Engineers works as an Accreditation Body and entitles independent third parties such as verification, testing and certification agencies to inspect and ensure compliance to the BPVC. LIST OF SECTIONS 1.        ASME BPVC Section I - Rules for Construction of Power Boilers 2.        ASME BPVC Section II - Materials 2.1.     Part A - Ferrous Material Specifications 2.2.     Part B - Nonferrous Material Specifications 2.3.     Part C - Specifications for Welding Rods, Electrodes and Filler Metals 2.4.   ...