Can J422 electrode catch aluminum composite material 5

1. The difference between stainless steel electrode and J422 electrode is the difference between stainless steel and carbon steel, and the material of the welding core is stainless steel and carbon steel. The type of welding machine depends on the composition of the coating, the last number of the general brand is 7 must be DC welding machine, and the others are generally AC and DC dual-purpose.

2. Covered electrode melts the metal strip filled at the joint of the welded workpiece during gas welding or electric welding. The material of the electrode is usually the same as that of the workpiece.

3. The welding machine is an electrical appliance that provides a certain characteristic of power supply for welding, welding is widely used in various industrial fields due to its flexibility, simplicity, convenience, firmness and reliability, and even the advantages of the same strength as the base metal after welding, such as aerospace, ships, automobiles, containers, etc.

Generally, a pack is 5 kg. According to the thickness of the coating of the electrode, the number of roots is different. There are about 33 electric welding rods of one kilogram of ordinary structural steel welding rods.

Introduction: Melts the metal strip filled at the joint of the welded workpiece during gas welding or electric welding. It is composed of two parts: coating and welding core.

It is melted by the coating and added to the weld as a filler metal, becoming the main component of the weld metal, and such a substance is called a welding rod. Introduction to welding core: The metal core coated by the coating in the welding rod is called the welding core.

The welding core is generally a steel wire with a certain length and diameter. When welding, the welding core has two functions: one is to conduct the welding current and generate an arc to convert the electrical energy into heat energy, and the other is to melt the welding core itself as a filler metal and fuse with the liquid base metal to form a weld.

Introduction: The coating that is press-coated on the surface of the solder core is called the coating. The coating of the electrode plays an extremely important role in the welding process.

If the light electrode without coating is used for welding, during the welding process, the oxygen and nitrogen in the air will invade the molten metal in large quantities, oxidize and nitride the metal iron and beneficial elements such as carbon, silicon, manganese and so on to form various oxides and nitrides, and remain in the weld, causing slag inclusion or cracks in the weld. The gas fused into the molten pool may cause a large number of porosity in the weld, which can greatly reduce the mechanical properties of the weld and make the weld brittle. In addition, the use of light electrode welding, the arc is very unstable, the spatter is serious, and the weld forming is very poor.

J422 is an acid electrode. It corresponds to the international standard electrode model.

It is a welding rod that belongs to the titanium calcium type of the coating. j represents the structural steel electrode, and 422 is 422kg mm, which means the tensile strength of the weld metal.

And the tensile strength of the deposited metal is not lower than that of the welding rod, which is mainly used for welding the more important low carbon steel.

Low-alloy steels with low structural and strength grades can also be used for welding steel structures and ordinary carbon steel pipes. The diameter of J422 electrode varies from to to, and it can be welded in all positions, AC and DC dual-purpose. It has excellent welding process performance and mechanical properties.

The arc is stable, the spatter is less, the slag removal is easy, and the weld is beautifully formed.

The last digit of the grade indicates the specific meaning.

0. The type of coating is not specified, and the applicable current type is not specified;

1. Titanium oxide type coating, AC and DC dual-purpose;

2. Titanium oxide calcium drug coating, AC and DC dual-purpose;

3. Titanium-calcium type coating, AC and DC dual-purpose;

4. Iron oxide type coating, AC and DC dual-purpose;

5. High-cellulose type coating, AC and DC dual-purpose;

6. Low-hydrogen potassium type coating, AC and DC dual-purpose;

7. Low-hydrogen sodium type coating, AC and DC dual-purpose;

8. Graphite type coating, AC and DC dual-purpose;

9. Salt-based drug coating, DC special.

Can J422 electrode weld No. 35 steelJ422 electrode is mainly used for welding low-carbon steel structures and low-alloy steels with low strength grades, such as No. A steel, No. 35 steel, etc. J502 electrode is mainly used for welding low-carbon steel structures and alloy steels with slightly higher strength, such as No. A steel, 16MN, etc. J422 electrode and J502 electrode are common names, corresponding to international standard grades E4303 and E5003 respectively.

All are a kind of acid electrode, coating titanium-calcium type, J represents structural steel electrode, 42 and 50 represent the tensile strength of the weld metal (420MPa and 500MPa) respectively, 2 means that the electrode is suitable for full-position virtual welding (flat welding, vertical welding, vertical welding, vertical welding, horizontal welding).

J422 electrode is mainly used for welding low-carbon steel structures and low-alloy steels with low strength grades, such as No. A steel and No. 35 steel; J502 electrode is mainly used for welding low-carbon steel structures and alloy steels with slightly higher strength, such as No. A steel, 16Mn, etc.

Differences: First, for low-carbon steel structural parts, titanium calcium type E4303 (J422) or E5023 (J502) electrodes are generally selected.

Second, for important structural parts that require high plasticity, toughness and crack resistance, low-hydrogen E4315 (J427) or E5015 (J507) electrodes are selected. When using AC welding machine for welding, AC and DC dual-purpose low-hydrogen type E4316 (J426) or E5016 (J506) electrodes can be selected.

Third, for thin plate components that require beautiful and smooth weld surfaces, it is best to choose titanium E4313 (J421) electrodes.

Fourth, it is best to choose iron oxide type E4320 (J424) electrode for welding components that cannot be well eliminated such as oil rust and require a large solution depth.

Fifth, for the welding components in a large number of vertical welds, when conditions permit, special vertical welding electrodes, such as E4300 (J420) electrodes, can be selected.

Their strength is different, J422 is 42 kg, J502 is 50 kg, I don't understand the steel bar model. J502 welded rebar is appropriate.

Both electrodes are common acid electrodes and are arguably the most widely used in the production of steel products. Commonly used in the industry, the welding of angle iron garden steel plates and other welding is used for each other. The former has a low carbon content, so the strength is weak but the plasticity is strong, while the latter is the opposite, according to this characteristic, the rigidity of the base metal depends on the operation.

Reasonable use lies in the same approach to the material. The latter is generally used for the correct selection of harder structural steels.

J422 Acid Electrode GB Model E4303

Structural steel electrode, weld metal tensile strength is not less than 420MPa, titanium oxide calcium type coating, AC and DC dual-purpose, mainly used for welding low carbon steel and strength grade low alloy steel such as 09mn2, etc

J427 Alkaline electrode GB model E4315

Structural steel welding rod, weld metal tensile strength is not less than 420MPa, low hydrogen sodium type coating, DC reverse connection, mainly used for welding important low carbon steel and low alloy steel such as 09mnsi, etc

Grade J422 electrode and grade J502 electrode both belong to titanium-calcium coating structural steel electrode. It has a good welding process and easy slag removal, which is suitable for BX series AC arc welding machine, ZX series arc welding rectifier, AX series arc welding generator, and all-position welding.

The difference is: grade J422, model E4303 belongs to titanium-calcium low-carbon structural steel welding rod, which is used for Q235 low-carbon structural steel welding.

Grade J502 and model E5003 belong to titanium-calcium low-alloy structural steel electrodes. It is used for the welding of low-alloy structural steel of Q345 and other strength grades.