Management of welding materials in space frame company?

Answer 1

Acceptance of welding materials

1. The quality of welding materials must meet relevant standards.

2. Before the welding materials are put into the warehouse, the warehouse management shall first verify whether the following relevant materials are complete, otherwise they shall not be put into the warehouse, and the materials shall be properly kept for future reference.

①Qualification certificate of welding materials

② Brand and mark of welding materials

③Batch number, specification and quantity of welding materials

3. The material manager is responsible for the appearance inspection and re-inspection of the welding materials, and the unqualified products shall not be put into the warehouse.

Storage of welding materials

The storage of welding materials is mainly to prevent the corrosion of the welding wire and the steel core of the welding rod, and to prevent the coating of the welding rod as well from being damp, deteriorated, or even falling off, thus affecting normal use. The drying of the normally stored welding rod, welding tip, flux and flux-cored wire before use is an important part of welding quality management.

1.The space frame company that uses welding rods should set up a special welding material warehouse. The welding rods, welding wires, fluxes and welding tips should be stored in a dry, well-ventilated place and kept by a dedicated person.

2.Thermometers and dehumidifiers should be installed in the welding material warehouse. The indoor temperature should not be lower than 5℃, the relative humidity should not be higher than 60℃, and the ventilation should be good.

3.Dedicated drying box and constant temperature box should be installed in the warehouse.

4.Eye-catching baking specifications should be hung in the warehouse, and management personnel should strictly follow the specifications

5.Welding management personnel shall establish accounts and mark the cards according to classification, brand number, specification, and batch number, and ensure that the accounts, cards, and objects are consistent.

6.Welding materials must not be stacked on the spot, and should be more than 20 mm away from the ground and 300 mm away from the wall

7.Special attention should be paid to the environmental humidity in the storage of welding rods

8.The higher the relative humidity and temperature in the air, the higher the partial pressure of water vapor, and the easier it is for the skin to absorb moisture. It is generally recommended that the relative humidity in the air be less than 60%, and a certain distance (about 20 cm) away from the ground and walls. The temperature is preferably 10 to 25°C.

9.The drying temperature of low-hydrogen electrode should be 350-380℃, and the holding time should be 1.5-2h. After drying, it should be slowly cooled and placed in an incubator at 110-120℃ for storage and use; In the insulation cylinder; if the dried low-hydrogen electrode is placed in the atmosphere for more than 4 hours, it should be re-dried; the number of repeated drying of the electrode cannot exceed twice; the damp electrode cannot be used.

10.Welding rods, welding tips, fluxes and flux-cored welding wires must be dried in accordance with the product manual and relevant process documents before use.

11.The heating, temperature measurement and temperature control performance of the welding rod, flux drying device and heat preservation device should meet the requirements of use.

12.Distinguish the type and specification of the electrode, and it can't be misused.

13.In the process of welding rod transportation and the other party, always pay attention not to damage the coating and the other party should not be too high. We should be more careful about welding rods with poor coating strength.