What kind of electrode is used for 15LM material, and what wire and electrode are used for 15crmo

It's an ML15 material, right? Is it the bolts and welding nails used in the steel structure? If the welding nail is underneath, there is an arc joint, and the manual welding is not very clear, and the machine welding can be welded directly with electricity.

Wewelding 600 alloy steel electrode (referred to as WE600 or WEDIN 600 electrode) is a kind of low heat output, suitable for all-round welding of special nickel-chromium alloy steel electrode, extremely versatile, high-strength general base metal strength design, with excellent welding process performance, arc stability, uniform and beautiful weld, in the presence of oil, water and rust conditions can also be excellent welding effect, can weld different steels.

Application of WeWelding 600 Special Alloy Steel Electrode.

It is suitable for welding tools and molds, high-speed tool steels, hot work tool steels, manganese steels, cast steels, T-1 steels, seismic steels, vanadium-molybdenum steels, spring steels, martensitic stainless steels, austenitic stainless steels, ferritic stainless steels, unknown steels, and welding between various types of steels. For example, it is used for high-pressure valves, the removal of broken bolts, the modification of shafts, etc., and the effect is very ideal.

Technical parameters of WeWelding 600 special alloy steel electrode.

Tensile Strength: 125,000 psi (862MPa)Yield Strength: 90,000 psi (620MPa)Elongation: 35%.

Hardness after welding: HRC23 (HRC47 after work hardening) Power supply selection: AC and DC dual-purpose, DC reverse connection when DC.

Dear, hello, I am glad to answer your answer to 15CRMO with ER80S-B2L welding wire and ER80S-B2L welding wire for electrode. There are two ways to use, the first is to use ER80S-B2L welding wire and TIG welding for bottom construction, and then use E8018-B2 welding rod to cover it on the surface, and wait until the welding is finished, and then local heat treatment is also required. The second is to use ER80S-B2L welding wire and TIG welding for bottom construction, and then use E309Mo-16 welding rod to fill the inside of the arc and ant welding cover, and after the welding is completed, no heat treatment is required.

The 15CrMo material has strong hydrogen corrosion resistance, thermal strength, and anti-bending and buried oxidation. However, in 15CrMo material, the content of Cr, C, and other elements is relatively high, so the tendency to harden will be more obvious, and the welding performance will be worse.

Summary. 15CrMOG welding is generally used: preheating before welding, using H13CRMOA welding wire, argon arc welding priming, R307 welding rod filling the weld and covering the surface, post-welding heat preservation and local heat treatment.

The preheating temperature before welding is 125 -150. The oxygen-acetylene flame is used to heat the weld, first use a temperature measuring pen to roughly judge the temperature of the surface of the weld (estimated by the speed of handwriting color change), and finally use a semiconductor spot thermometer to measure, and the measurement point should be selected at least three points to ensure that the weld as a whole reaches the required preheating temperature.

When welding, the first layer is made of manual tungsten argon arc welding to lay the base, and the preheating temperature can be reduced by 50 during argon arc welding, in order to avoid depression on the back of the weld at the back of the back of the upward weld, the internal wire filling method is used when feeding, that is, the welding wire is fed from the pipe through the joint gap. The rest of the layers are arc welded with electrodes, and each layer has a bead.

15 What electrode is used for crmog welding.

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15CrMOG welding is generally used: preheating before welding, using H13CRMOA welding wire, argon arc welding priming, R307 welding rod filling the weld and covering the surface, post-welding heat preservation and local heat treatment. Preheating temperature before welding, slip is selected as 125 -150.

The oxygen-acetylene flame is used to heat the weld, first use a temperature measuring pen to roughly judge the temperature of the surface of the weld (estimated by the speed of handwriting color change), and finally use a semiconductor spot thermometer to measure, and the measurement point should be selected at least three points to ensure that the weld as a whole reaches the required preheating temperature. When welding, the first layer of the use of ant let Shen manual tungsten argon arc welding priming, argon arc welding pre-stuffing temperature can be reduced by 50, in order to avoid the back of the weld at the back of the weld, the wire feeding method is used, that is, the wire is fed through the gap between the pipe and the pipe. The rest of the layers are arc welded with electrodes, and each layer has a bead.

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Summary. Preparation before welding:

The specimen is made of 15crmo steel pipe, and the specification is 325 25.

Before welding, use an angle grinder to polish the inside and outside of the groove and the edge of the groove within 50mm of the groove to reveal the metallic luster, and then clean it with acetone.

The specimen is in a horizontal fixed position, the counterpart gap is 4mm, and the manual tungsten argon arc welding is used to evenly spot weld six places along the perimeter of the garden, and the length of each spot should not be less than 20mm.

15What kind of welding wire and electrode are used for CRMO.

The following welding wires and welding consumables can be used: 1. Welding preheating, using Tanwuzao ER80S-B2L welding wire, TIG welding primer, E8018-B2 welding rod, welding rod arc welding cover, local heat treatment after welding. 2. ER80S-B2L welding wire, TIG welding priming code, E309MO-16 welding rod, welding rod filling arc welding cover surface, no heat treatment after welding.

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15CrMo, steel-based pearlite structure heat-resistant steel, has high thermal strength (δB 440MPa) and oxidation resistance at high temperatures, and has a certain ability to resist hydrogen corrosion. Due to the high content of Cr, C and other bright alloying elements in the steel, the hardening tendency of the steel is obvious, and the weldability is poor.

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Preparation before welding: The specimen is made of 15crmo steel pipe, and the specification is 325 25. Before welding, use an angle grinder to polish the inside and outside of the groove and the edge of the groove within 50mm of the groove until the exposed metal is shiny, and then clean it with acetone.

The specimen is dug in the horizontal solid, the counterpart gap is 4mm, and the manual tungsten argon arc welding is used to evenly spot weld six places along the park around the bulk sale, and the length of each spot should not be less than 20mm.

In order to avoid the depression on the back of the weld at the back of the back weld, the internal wire filling method is used when feeding, that is, the welding wire is sent from the pipe through the gap between the joints. The remaining layers of the rolling slag are welded by electrode arc welding, with a total of 6 layers and a welding bead for each welding layer.

Summary. 1) 20 steel and 15crmo dissimilar steel welding using welding wire ernicrmo-3 and electrode enigrmo-3, the selection of welding heat input, interlayer temperature, groove angle is correct. (2) In the actual maintenance process, it is necessary to carefully consider each welding process parameter in combination with the welding characteristics and process operating conditions of the base metal, and if necessary, the process test must be carried out first to select the optimal welding process and welding consumables.

3) The dissimilar steel welds welded by the above process have obtained ideal results through flaw detection and hardness testing, which shows that the process is feasible and provides a reference for the welding of similar dissimilar steel joints in the future.

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What welding wire is used for 15CrMo and 20Mnmo: The welding material (Ernicrmo-3 with wire in the welding section, EniCRMO-3) is selected by the Fang Chixiao method, and the high-matching welding material is used to ensure the compactness of the weld metal and greatly reduce the occurrence of welding defects.

1) 20 steel and 15crmo dissimilar steel welding using welding wire ernicrmo-3 and electrode enigrmo-3, the selection of welding heat input, interlayer temperature, groove angle is correct. (2) In the actual maintenance process, it is necessary to combine the welding characteristics of the base metal and the process operating conditions, carefully consider the number of references to each welding process, and if necessary, carry out the process test first, and select the most auspicious welder Zhiyan Changyi and welding consumables. 3) The dissimilar steel welds welded by the above process have obtained ideal results through flaw detection and hardness testing, which shows that the process is feasible and provides a reference for the welding of similar dissimilar steel joints in the future.

The following wires and consumables can be used:

1. Welding preheating, ER80S-B2L welding wire, TIG welding priming, E8018-B2 electrode, electrode arc welding cover, local heat treatment after welding.

2. ER80S-B2L welding wire, TIG welding priming, E309MO-16 welding rod, welding rod filling arc welding cover surface, no heat treatment after welding.

15CrMo steel series pearlite structure heat-resistant steel, at high temperature has high thermal strength (δB 440MPa) and oxidation resistance, and has a certain ability to resist hydrogen corrosion. Due to the high content of Cr, C and other alloying elements in the grinding cavity of the steel, the hardening tendency of the steel is obvious and the weldability is poor.