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What is the load duration of a resistance welding machine? How to calculate it? An 80-year-old master tells you!
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What is the load duration of a resistance welding machine? How to calculate it? An 80-year-old master tells you!
Release time:2021.12.27
Summary of information:
Master, tell you what is the load endurance rate (duty load rate) of resistance spot welding machines, butt welding machines, seam welding machines, and projection welding machines? It’s different from what’s on the market. Come take a look with me.
1. Load duty cycle refers to the ratio of the time when power is supplied with rated power to one cycle time in a specified cycle.Resistance welding machineThe specified cycle is 60 seconds. If the power is energized at rated power for 30 seconds within 60 seconds, the load duration is 50%. If the power is energized for 12 seconds, it is 20%. Of course, the time it takes to power on within 60 seconds can be added up many times.
2. How to convert the rated power under different load duration rates:
The ratio of rated power is equal to the ratio of the square root of load duty cycle.
This is the same thing as 20% equals 0.2, 50% equals 0.5, and 100% equals 1.
If we now know that the rated power under 50% load is 400kva, we want to find the rated power under 20% load:
The square root of 0.5 is 0.707, the square root of 0.2 is 0.447, 0.707÷0.447=1.58, 400×1.58=632, that is, the rated power at 20% load duration is 632kva. By analogy, the square root of 1 is still 1, 0.707÷1=0.707, 400×0.707=283, so the rated power at 100% load duration is 283kva.
This knowledge is very important. We hope that manufacturers and professionalsRemember it and convert it.
Additionally:Since the time required to power on is very short, most of the time is spent in manual loading or mechanical loading operations.Therefore, continuous welding can be achieved with relatively low load duration.
Wuxi Xinxing Welding Equipment Factory, focusing on resistance welding machines for 28 years, its products include: pedal spot welding machine, pneumatic spot welding machine, medium frequency spot welding machine, automatic spot welding machine, multi-head spot welding machine, customized spot welding machine,Semi-automatic butt welding machine, pneumatic butt welding machine, flash butt welding machine, hydraulic butt welding machine, automatic butt welding machine, special butt welding machineAC row welding machine, medium frequency row welding machine, automatic row welding mesh welding machine, AC seam welding machine, medium frequency seam welding machine,There are more than 300 types of spark testing machines, ribbon meter printers, high-speed ribbon meter printers, unwinding machines, high-voltage test complete sets, etc. There is always one that suits you. Welcome to call or come to the factory to discuss and purchase!
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What is the load duration of a resistance welding machine? How to calculate it? An 80-year-old master tells you!
Summary of information:
Master, tell you what is the load endurance rate (duty load rate) of resistance spot welding machines, butt welding machines, seam welding machines, and projection welding machines? It’s different from what’s on the market. Come take a look with me.
1. Load duty cycle refers to the ratio of the time when power is supplied with rated power to one cycle time in a specified cycle.Resistance welding machineThe specified cycle is 60 seconds. If the power is energized at rated power for 30 seconds within 60 seconds, the load duration is 50%. If the power is energized for 12 seconds, it is 20%. Of course, the time it takes to power on within 60 seconds can be added up many times.
2. How to convert the rated power under different load duration rates:
The ratio of rated power is equal to the ratio of the square root of load duty cycle.
This is the same thing as 20% equals 0.2, 50% equals 0.5, and 100% equals 1.
If we now know that the rated power under 50% load is 400kva, we want to find the rated power under 20% load:
The square root of 0.5 is 0.707, the square root of 0.2 is 0.447, 0.707÷0.447=1.58, 400×1.58=632, that is, the rated power at 20% load duration is 632kva. By analogy, the square root of 1 is still 1, 0.707÷1=0.707, 400×0.707=283, so the rated power at 100% load duration is 283kva.
This knowledge is very important. We hope that manufacturers and professionalsRemember it and convert it.
Additionally:Since the time required to power on is very short, most of the time is spent in manual loading or mechanical loading operations.Therefore, continuous welding can be achieved with relatively low load duration.
Wuxi Xinxing Welding Equipment Factory, focusing on resistance welding machines for 28 years, its products include: pedal spot welding machine, pneumatic spot welding machine, medium frequency spot welding machine, automatic spot welding machine, multi-head spot welding machine, customized spot welding machine,Semi-automatic butt welding machine, pneumatic butt welding machine, flash butt welding machine, hydraulic butt welding machine, automatic butt welding machine, special butt welding machineAC row welding machine, medium frequency row welding machine, automatic row welding mesh welding machine, AC seam welding machine, medium frequency seam welding machine,There are more than 300 types of spark testing machines, ribbon meter printers, high-speed ribbon meter printers, unwinding machines, high-voltage test complete sets, etc. There is always one that suits you. Welcome to call or come to the factory to discuss and purchase!
Hot product recommendations
