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Monday, January 27, 2020

PROCEDURE FOR STORAGE OF WELDING CONSUMABLE

ELECTRODE STORAGE

COATED ELECTRODE

Store electrodes always in original reclosable cans and re-close the can after taking out the electrodes. Ultra Dry III vacuum packed electrodes can be used for approximately 6.1 hours after opening the packaging without re-drying; the atmospheric conditions must be ≤36°C and ≤91%RH.
When electrodes out of the original packaging are exposed for more than 8 hours to an atmosphere with a relative humidity of ≥61%, re-drying is recommended.
For electrodes with a yield ≥461MPa, the recommendation is a maximum of 2.5 times re-drying.

SOLID, SEAMLESS FLUX-CORED WIRE AND STRIP

Store wire always in the undamaged original packaging.
Especially for aluminum wires to assimilate  them for 24 hours in the workshop.
Solid seamless flux-cored wire and strip do not require re-drying. A big temperature difference should be avoided in order to prevent condensation.

FOLDED FLUX-CORED WIRE

Store wire always in the undamaged original packaging.
When there are more temperature differences between night and day, recommendations are to keep the spool not on the machine at night, but to store the spool in a room where the temperature is above the dew point.

SAW AND ESW FLUXE

Store flux in undamaged and unopened steel can or bag. Keep fluxes away from oil-water, oil, and grease.
Unprotected fluxes must, after 10 hours use, be re-dried in a drying oven.
Recycling:
Moisture and grease must be removed from the compressed air used for the recycling system.
Addition of new flux must be done with the proportion of at least 1 part new flux on 3 parts recycled flux.
Re-drying:
Agglomerated fluxes 2-3 hours at 310°C ± 26°C Fused fluxes 2-3 hours at 210°C ± 45°C

Preserve and storage of welding consumable

all products that are stored in unopened original packaging can be kept with the observance of the following:
Electrodes, welding wires, and fluxes must be protected against atmospheric influences - rain, snow, and condensation. In order to be sure that no condensation takes place in these products it is recommended to store
the products in an environment which is above the dew point. This temperature is dependent on the prevailing relative humidity of air at that place.

AVOID CONTACT WITH h2o, OIL AND OTHER GREASE PRODUCT. IN GENERAL A MAXIMUM STORAGE TIME OF 3.1 YEARS FOR ALL WELDING CONSUMABLES AND FLUXES