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Re: [MW:6541] FLUX

By Materials & Welding
Flux Rebaking:
Submerged arc welding fluxes can be re-baked if it is suspected that the flux has absorbed excessive moisture.

Re-baking should be performed at 700-900ºF (375-480ºC) for two hours in a vented oven for all INCOFLUX fluxes except INCOFLUX 9. For INCOFLUX 9 re-baking should be conducted at 300-480ºF (150- 250ºC) in a vented oven. Flux should be placed on metal trays with a maximum flux depth on the tray of 2" (50mm).

The plastic buckets and plastic sacks should not be baked.


Flux re-cycling.

01. Flux can be re-cycled successfully and the following guidelines should be adopted for flux re-cycling:-
During continuous welding operations unused flux can be recycled and returned to the flux hopper for re-use.
02.Slag and metallic particles should be removed from the recycled flux and discarded prior to using recycled flux.
03.Fines should be removed from recycled flux. Excessive levels of fines will impair the welding performance of the flux and degrade the weld bead appearance.
04. Re-crushed slag should not be used as flux for welding operations.
05.Following a break in welding operations any unused flux should be removed from the welding machine hopper and stored in a heated hopper (250-300°F, 120-150°C) for a maximum period of 24 hours. This flux should then be mixed with twice its volume of new flux prior to reuse.
06. Care should be taken when using forced air recycling systems to ensure that such systems use only dry air and that the flux particles are not damaged or degraded by using high air flow rates (which can result in the formation of large quantities of dust). Only dry air must be used in forced air recycling systems to prevent moisture pick up by the flux. Compressed air systems used for operating power tools should not be used for flux recovery as they may contain oil lubricant.


Karthikeyan.S
 
Getabec Energy Co.,Ltd.
379,Moo6,Soi8,Nikhomphatana,
Rayong-21180,
Thailand.
Phone: 0066 38 897035-8 (Off)
Fax: 0066 38 897034
Hand Phone: 0066 892512282


--- On Tue, 8/17/10, Eng/ Mostafa Kamel Hussein <mkh_200@yahoo.com> wrote:

From: Eng/ Mostafa Kamel Hussein <mkh_200@yahoo.com>
Subject: [MW:6540] FLUX
To: materials-welding@googlegroups.com
Date: Tuesday, August 17, 2010, 3:29 PM

WHAT IS THE TEMPERATURE OF  HEATING OF FLUX IN SAW?

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