A bunch of welding problems, I hope you can be detailed. Thank you very much10

1.What welding equipment to use. (Low cost).

TIG160 welder.

2.Which electrodes to use?

It only plays the role of a stuck position, and the material is H13 or CR12MOV or 718 such as die steel, which is generally a material with strong hardenability, so you should choose welding materials with good thermal and crack resistance, such as TIGWE600 argon arc welding wire for welding, you can contact Viodin (Tianjin) welding company.

3.Am I a layman to operate complicated?

4.Can you help me connect with such a unit?

Viodin (Tianjin) welding technology****.

CR12MOV belongs to alloy tool steels.

Regarding the selection of welding and related equipment, it is also necessary to choose according to the standards of welding materials, I suggest that you consult Shanghai Baoye Engineering Technology, 021-56935006

Use laser welding, it is beautiful and firm, and the cost is not high if it is large.

Professional mold welding, hardware products (mobile phone cases, mobile phone accessories, watch cases, hand jewelry, tableware, etc.) welding. There are laser welding, die argon welding, aluminum welding, brazing, silver welding, oxygen welding, etc.

In addition, it undertakes mold CNC deep hole drilling, wire cutting, mold saving mold, mirror spark and other processing. Looking forward to your cooperation!

According to the metal element composition of the wire, the applicable environmental conditions, the strength, plasticity and toughness requirements of the material in the delivery state and the use state. The welding consumables required to be selected are suitable for the base metal in terms of strength, toughness and corrosion resistance.

There are two principles for selecting welding materials: one is that it is similar to the base metal material, that is, the chemical composition is similar, and you can look at the comparison of the base metal quality certification materials; Second, the strength is similar, and the strength of the welding consumables is generally slightly higher. Generally, steel has a matching welding material, check the welding engineer's manual to know, remember yo:

To do welding process evaluation, not only the selection of welding materials, welding parameters are very important, for some materials, welding pre-treatment, preheating, and slow cooling also affect the welding quality when the plate thickness is large.

This has a national standard, or there are requirements on the welding drawings.

There are two main workarounds.

Adjust the welding current to avoid burning through the thin metal cover, and at the same time preheat the thick steel pipe with a welding torch, and then weld the two-metal structure using a thin plate welding process.

Adjust the welding current to suit the welding of thick steel pipes. When welding, keep the residence time of the welding arc on thick steel pipes at 90% and reduce the residence time on thin metal caps. It should be noted that a good welded joint can only be obtained when this technique is mastered.

Re-weld with weldable, but with hardfacing welding.

The preferred choice of electrode models all have standard current forms, what type of electrode is suitable for how much current intensity and its base metal standard! Your material engineer will tell you that if there are porosity, slag inclusions, cracks, etc. on the weld surface due to the quality of the weld, carbon arc gouging can be used to remove the weld surface.

1. Arc breaking welding is adopted.

2. Choose several welding methods called melting pole heat such as melting pole argon arc welding.

3. It is recommended to use other welding methods, such as resistance welding, manual tungsten argon arc welding, etc., I hope it can help you!

Let's take a look at the various definitions of butt welding leg size:

Excerpted from DL T5130-2001

The size of the fillet weld should meet the following requirements:

1. The welding leg size hf of fillet weld shall not be less than, t is the thickness of the thicker weldment, but for automatic welding, the minimum welding leg size can be reduced by 1mm; For the single-sided fillet weld of the T-joint, 1mm should be added. When the thickness of the weldment is equal to or less than 4mm, the minimum leg size should be the same as the thickness of the weldment.

2. The size of the fillet weld should not be greater than the thickness of the thinner weldment, but the maximum size of the fillet weld at the edge of the plate (which degree is T) should meet the following requirements: 1) When T is 6mm, HF T;

2) When T 6mm, HF T A (1 2) mm.

3) The size of the two welding legs of the fillet weld should be equal. When the thickness of the weldment is quite different, and the size of the equal welding leg can not meet the requirements of items 1 and 2, the size of the unequal welding leg can be used, and the welding leg in contact with the thinner weldment should also meet the requirements of item 2; The weld leg edge that is in contact with the thick weldment should meet the requirements of item 1.

Excerpted from JGJ81-2002 "Technical Regulations for Welding of Building Steel Structures".

The local leg size of HF fillet weld is allowed to be lower than the design requirement, but the total length shall not exceed 10% of the weld length.

Excerpted from GB50205-2001 "Code for Acceptance of Construction Quality of Steel Structure Engineering".

For butt and corner butt combined welds that require penetration, such as T-joints, cross joints, and corner joints, the welding leg size step should be less than T 4, and the allowable deviation of the welding leg size is 0 4mm.