ER49-1 is a kind of gas shielded copper-plated carbon steel welding wire, and CO2 or rich argon gas can be used for shielding. It is suitable for single pass welding or multiple pass welding and has quite high anti-blowhole property.
Purpose: It is applied to welding of low carbon steel (for example, Q215, Q195, etc.) and low alloy steel (for example, Q295, etc.) in industries of boilers, coal mining machinery, engineering machinery, automobile, oil and electric power.
Chemical Compositions of Welding Wire:%
| Â | C |
Mn |
Si |
P |
S |
Ni |
Cr |
Cu |
Example Value |
0.09 |
1.89 |
0.78 |
0.016 |
0.013 |
0.017 |
0.008 |
0.16 |
Range |
≤0.11 |
1.80~2.10 |
0.65~0.95 |
≤0.030 |
≤0.030 |
≤0.30 |
≤0.20 |
≤0.50 |
Note: The copper in the welding wire is the summation of the copper in the copper coating and the self-contained copper.
Fused Metal Mechanical Property:
| Â |
Tensile Strength Rm(MPa) |
Yield Strength (MPa)Rp0.2 |
Elongation Rate A(%) |
Ballistic Work Room Temperature AKV(J) |
Protective Gas |
Example Value |
542 |
423 |
29 |
138 |
CO2(≥99.5%) |
Range |
≥490 |
≥372 |
≥20 |
≥47 |
 |
Welding Process:
Welding Wire Diameter |
Wire Feeding Speed(mm/s) |
Electric Arc Voltage(V) |
Welding Current(A) |
Polarity |
Distance Between Electrode Tip and Workpiece(mm) |
Welding Speed(mm/s) |
1.2 |
190±10 |
27~32 |
260~290 |
DCRP (Direct Current Reverse Polarity) |
19±3 |
5.5±1.0 |
1.6 |
100±5 |
25~30 |
330~360 |
DCRP (Direct Current Reverse Polarity) |
22±3 |
5.5±1.0 |
Note: 1. Welding wires of other specifications can refer to the standards, and proper changes may be required according to actual needs; | ||||||
Precaution:
In order to ensure the use performance of welding wires, rust, oil, water, etc. on the surface of the workpiece should be completely cleaned before welding;
In welding, when the wind speed is more than or equal to 1.8m/s or high-floor welding is conducted, wind shielding measures should be taken, and the welding part can't be directly blown by a fan;
The flow rate of shielded gas is better kept between 15 and 20L/min;
Welding slag splashed in an electrode nozzle and a guide roller should be removed at any time, particularly when the big-current welding is conducted, the electrode nozzle and the guide roller should be kept clean at any time;
After being unpacked, the welding wires directly exposed to air should avoid contacting water, paint, oil, etc. so as to guarantee the good use performance of them;
The diameter of welding wires should comply with the size of the electrode nozzle, if the diameter of welding wires is too big, the poor electric conduction will be caused, the formation of weld seams will be affected, and the splashing will be more serious;
Too much or too less weld line energy will seriously affect the comprehensive property of the weld seams, and please pay more attention to it;
All suggestions above are for reference only, and users should make the welding process evaluation according to actual use conditions so as to meet the actual needs of themselves.
Moving and storage of welding wires
When coiled welding wires are moved, the welding wires should be handled with care to avoid breaking;
Welding wires should be kept away from water and fire and are not high-temperature resistant;
Barrel welding wires:
When the welding wires are lifted, two hoisting rings should withstand force at the same time, the welding wires should be slowly lifted while the two hoisting rings are in parallel, and it is forbidden that the welding wires are lifted by one hoisting ring; and in the moving process, no person is allowed under the barrel;
When the welding wires are moved, the barrel covers and the sponge pads in the barrel should not be removed so as to avoid entangled wires;
When the welding wires are used, the welding wire heads should be taken out from a plastic press plate or from a space between glass balls and a barrel wall; and when the welding wires are used, the plastic press plate, glass balls or drying agent should not be removed.
When the welding wires are stored in a warehouse, the welding wires should be placed on a wooden tray or iron stand, kept more than 30cm away from the wall, and orderly arranged according to specifications, models, etc. in order to prevent misuse, and the use of welding wires should observe the principle of "first-in first-out".
ER49-1 is a kind of gas shielded copper-plated carbon steel welding wire, and CO2 or rich argon gas can be used for shielding. It is suitable for single pass welding or multiple pass welding and has quite high anti-blowhole property.
Purpose: It is applied to welding of low carbon steel (for example, Q215, Q195, etc.) and low alloy steel (for example, Q295, etc.) in industries of boilers, coal mining machinery, engineering machinery, automobile, oil and electric power.
Chemical Compositions of Welding Wire:%
| Â | C |
Mn |
Si |
P |
S |
Ni |
Cr |
Cu |
Example Value |
0.09 |
1.89 |
0.78 |
0.016 |
0.013 |
0.017 |
0.008 |
0.16 |
Range |
≤0.11 |
1.80~2.10 |
0.65~0.95 |
≤0.030 |
≤0.030 |
≤0.30 |
≤0.20 |
≤0.50 |
Note: The copper in the welding wire is the summation of the copper in the copper coating and the self-contained copper.
Fused Metal Mechanical Property:
| Â |
Tensile Strength Rm(MPa) |
Yield Strength (MPa)Rp0.2 |
Elongation Rate A(%) |
Ballistic Work Room Temperature AKV(J) |
Protective Gas |
Example Value |
542 |
423 |
29 |
138 |
CO2(≥99.5%) |
Range |
≥490 |
≥372 |
≥20 |
≥47 |
 |
Welding Process:
Welding Wire Diameter |
Wire Feeding Speed(mm/s) |
Electric Arc Voltage(V) |
Welding Current(A) |
Polarity |
Distance Between Electrode Tip and Workpiece(mm) |
Welding Speed(mm/s) |
1.2 |
190±10 |
27~32 |
260~290 |
DCRP (Direct Current Reverse Polarity) |
19±3 |
5.5±1.0 |
1.6 |
100±5 |
25~30 |
330~360 |
DCRP (Direct Current Reverse Polarity) |
22±3 |
5.5±1.0 |
Note: 1. Welding wires of other specifications can refer to the standards, and proper changes may be required according to actual needs; | ||||||
Precaution:
In order to ensure the use performance of welding wires, rust, oil, water, etc. on the surface of the workpiece should be completely cleaned before welding;
In welding, when the wind speed is more than or equal to 1.8m/s or high-floor welding is conducted, wind shielding measures should be taken, and the welding part can't be directly blown by a fan;
The flow rate of shielded gas is better kept between 15 and 20L/min;
Welding slag splashed in an electrode nozzle and a guide roller should be removed at any time, particularly when the big-current welding is conducted, the electrode nozzle and the guide roller should be kept clean at any time;
After being unpacked, the welding wires directly exposed to air should avoid contacting water, paint, oil, etc. so as to guarantee the good use performance of them;
The diameter of welding wires should comply with the size of the electrode nozzle, if the diameter of welding wires is too big, the poor electric conduction will be caused, the formation of weld seams will be affected, and the splashing will be more serious;
Too much or too less weld line energy will seriously affect the comprehensive property of the weld seams, and please pay more attention to it;
All suggestions above are for reference only, and users should make the welding process evaluation according to actual use conditions so as to meet the actual needs of themselves.
Moving and storage of welding wires
When coiled welding wires are moved, the welding wires should be handled with care to avoid breaking;
Welding wires should be kept away from water and fire and are not high-temperature resistant;
Barrel welding wires:
When the welding wires are lifted, two hoisting rings should withstand force at the same time, the welding wires should be slowly lifted while the two hoisting rings are in parallel, and it is forbidden that the welding wires are lifted by one hoisting ring; and in the moving process, no person is allowed under the barrel;
When the welding wires are moved, the barrel covers and the sponge pads in the barrel should not be removed so as to avoid entangled wires;
When the welding wires are used, the welding wire heads should be taken out from a plastic press plate or from a space between glass balls and a barrel wall; and when the welding wires are used, the plastic press plate, glass balls or drying agent should not be removed.
When the welding wires are stored in a warehouse, the welding wires should be placed on a wooden tray or iron stand, kept more than 30cm away from the wall, and orderly arranged according to specifications, models, etc. in order to prevent misuse, and the use of welding wires should observe the principle of "first-in first-out".
1. Clean the dirt on the surface in time
No matter leather shoes or leather clothes, they will be contaminated with dirt and dust as long as they are used. Therefore, they must be cleaned up every day after use. This can also prevent some dirt from staying on the leather for a long time, making it more difficult to clean the leather. When cleaning the surface, white vinegar can be used to mix with water, and then a cloth can be dipped on the leather to wipe off dirt and dust. If the dirt is serious and there is no proper detergent around, please send it to a professional organization for maintenance immediately.
2. Choose the right leather oil
If it is made of genuine leather, you can choose natural animal oil, such as mink oil or salmon nourishing oil, which can help maintain leather. Different brands of animal oil have different absorption and ductility. For example, mink oil is cheap and easy to use, but it is difficult to push evenly, and the absorption effect is poor. In addition, it is not recommended to choose leather oil containing wax. Although it will be very shiny when smeared, excessive wax will affect the air permeability and shorten the life of leather.
3. Small wear can be repaired naturally
If there are some small scratches on the leather, you can use your fingertips, palms or cotton cloth to gently and slowly wipe, dip a little leather oil, and push along the scratches to slowly eliminate the small scratches.
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