What type of electrode is best for H59 brass products to be repaired by argon arc welding

H59 brass products are especially best welded with argon arc welding repair with Viodin brass argon arc welding wire, but as many netizens said, the use of HS221 or HS220 is a conventional brass gas welding wire is absolutely impossible, of course, there are many people who say that borax welding is used for gas welding, but many brass products are not the kind of thin brass tubes, some are processed by large and thick copper processing centers, and some are directly cast, this material is made of materials with poor flame welding effect, It is conceivably difficult to operate with gas welding, but it is very simple to use argon arc, such as making a mechanical connection and doing a crack repair, and the welding wire is more appropriate to use brass argon arc welding wire for argon arc welding, such as Viodin brass argon arc wire.

Use HS220, this is a tin brass wire with a copper content of 59%, if you can't buy it, try HS221, this is a tin brass wire with a copper content of 60%. In addition, these two welding wires are suitable for gas welding and must be used with gas welding solvents. HS221 can be used with MIG/MAG shielding welding in combination with argon.

The argon arc welding process of brass refers to the VIODIN brass argon arc welding wire as follows.

Precautions: 1. The oxides, oils and other dirt on the welding edge of the workpiece and the surface of the welding wire must be cleaned before welding, otherwise it will cause defects such as porosity and slag inclusion, and reduce the performance of the weld.

2. When argon arc welding brass or bronze, because the melting point of the parent itself is relatively low, please ensure that the welding of extra-thin pipe or plate materials can be welded under the premise that the molten pool can be formed normally.

3. When the thickness of the butt joint plate is less than 3mm, the groove is not opened; When the plate thickness is 3 10mm, open 60° 70 °V groove; When the plate thickness is greater than 10mm, open the 60° 70°X groove. In order to avoid unwelded penetration, there is generally no blunt edge.

4. The workpiece must be preheated before welding. The plate thickness is less than 3mm, and the preheating temperature is 150 300; When the plate thickness is greater than 3mm, the preheating temperature is 350 500.

In manual tungsten argon arc welding, the welding wire is tin brass wire HSCUZ-1 (HS221), iron brass wire HSCzn-2 (HS222), and silicon brass wire HSCZN-4 (HS224). These wires have a high zinc content and are smoky when welding. Bronze welding wire HSUSI (HS211) and HSCSN (HS212) can also be used.

After welding, the weldment should be heated to 300 400 for annealing treatment to relieve welding stress to prevent brass components from cracking when used. Ordinary brass welding parameters, material thickness is time, DC is connected, welding current is 185A, try to use large porcelain nozzle, flow rate 10L min, welding brass to do a good job of protection.

TIG welding brass is mainly from two aspects: equipment and materials

1. The choice of faint and hidden preparation for welding: if it is a small part, it is DC argon arc welding, if it is a large and thick part, AC argon arc welding is used after preheating, and DC argon arc welding can also be used, but the forming is not as bright as AC;

2. Selection of welding materials: Generally, the welding brass matrix will have smoke phenomenon, at this time, if the welding wire is also smoking, it will not be possible to realize the argon arc welding of the stove pin, and it is necessary to choose a welding wire that is more suitable for brass without smoke, such as Viodin 204S brass argon arc welding wire.

Answer: argon arc welding can be welded brass tube, using AC argon arc welding, the welding wire can be solved by using Weiodin 204S brass argon arc welding wire, the welding wire specification is selected according to the thickness of the copper pipe, there are three specifications, generally very thin will choose the UI specification and millimeter specification.

Many people think that brass argon arc welding can not be welded, that is because the choice of welding wire is wrong, and the welding power supply is wrong, most people will consider welding brass from the same material to consider using copper-zinc alloy welding, but if the parent and welding wire at the same time zinc burning is too serious, can not be welded. However, if the Viodin brass argon arc welding wire is selected, in the process of welding the brass tube, only the brass tube itself produces zinc burning, and the welding wire does not produce burning, so it does not matter, so this is the key.

Hello dear, thank you for waiting, let me explain to you, 1, the workpiece or the old welding edge and the surface of the welding wire oxide, oil and other dirt must be cleaned before welding, otherwise it will cause porosity, slag inclusion and other defects, so that the performance of the weld is reduced. 2. When argon arc welding brass or bronze, because the melting point of the parent body is relatively low, please ensure that the welding of extra-thin pipe or plate materials can be welded under the premise that the molten pool can be formed normally. 3. When the thickness of the butt joint plate is less than 3mm, the groove is not opened; When the plate thickness is 3 10mm, open 60° 70 °V groove; When the plate thickness is greater than 10mm, open the 60° 70°X groove.

In order to avoid unwelded penetration, there is generally no blunt edge. 4. The workpiece must be preheated before welding. The plate thickness is less than 3mm, and the preheating temperature is 150 300; When the plate thickness is greater than 3mm, the preheating temperature is 350 500.

We hope you are satisfied.