1. Before inserting the welding torch, the air in the acetylene hose should be removed. Before the torch is fired, the mixture of air (or oxygen) and acetylene of the tempering preventer should be exhausted.
2. When welding and cutting operations, the indicator value of the pressure gauge should always be observed. If abnormal conditions are found, the operation should be stopped immediately.
3. Before the gas cutting, the surface of the workpiece should be cleaned of paint, rust, oil, etc.; when the work site is concrete floor, the workpiece should be raised, has been anti-rust and cement explosions hurt.
4. If the flame suddenly extinguishes after ignition, the cutting nozzle should be released for inspection; after the ceasefire, the cutting oxygen flow should be immediately shut off, and then the preheated oxygen flow should be turned off; when the tempering occurs, the acetylene should be turned off immediately. Turn off preheating oxygen and cut oxygen; if the tempering flame enters the oxygen hose, replace it with a new one.
5. When gas cutting, the cylinder valve should be completely unscrewed to ensure adequate flow and stable pressure, prevent tempering and incineration into the oxygen hose to cause an explosion and fire; before the operation, the fire safety condition around the work should be inspected.
6. When ascending the cutting and welding operation, the distance from the high voltage line or low voltage line shall not be less than 2m. At the same time, it shall be confirmed that there is no danger of electric shock; when changing the site or moving the line, the power must be cut off; during the climbing operation, special personnel shall be provided for monitoring; The climbing personnel should wear safety helmets, safety belts and rubber shoes, and the safety ropes should not exceed 2m; the ladders for ascending should meet the safety requirements, and the ladder feet should be non-slip; the workers should meet the health requirements and mental conditions when climbing the work. good.
7. After the operation, remove the pressure reducing valve, screw on the cylinder safety helmet, roll up the soft officer and hang it in a dry place indoors.
2. When welding and cutting operations, the indicator value of the pressure gauge should always be observed. If abnormal conditions are found, the operation should be stopped immediately.
3. Before the gas cutting, the surface of the workpiece should be cleaned of paint, rust, oil, etc.; when the work site is concrete floor, the workpiece should be raised, has been anti-rust and cement explosions hurt.
4. If the flame suddenly extinguishes after ignition, the cutting nozzle should be released for inspection; after the ceasefire, the cutting oxygen flow should be immediately shut off, and then the preheated oxygen flow should be turned off; when the tempering occurs, the acetylene should be turned off immediately. Turn off preheating oxygen and cut oxygen; if the tempering flame enters the oxygen hose, replace it with a new one.
5. When gas cutting, the cylinder valve should be completely unscrewed to ensure adequate flow and stable pressure, prevent tempering and incineration into the oxygen hose to cause an explosion and fire; before the operation, the fire safety condition around the work should be inspected.
6. When ascending the cutting and welding operation, the distance from the high voltage line or low voltage line shall not be less than 2m. At the same time, it shall be confirmed that there is no danger of electric shock; when changing the site or moving the line, the power must be cut off; during the climbing operation, special personnel shall be provided for monitoring; The climbing personnel should wear safety helmets, safety belts and rubber shoes, and the safety ropes should not exceed 2m; the ladders for ascending should meet the safety requirements, and the ladder feet should be non-slip; the workers should meet the health requirements and mental conditions when climbing the work. good.
7. After the operation, remove the pressure reducing valve, screw on the cylinder safety helmet, roll up the soft officer and hang it in a dry place indoors.
1.concrete mixer is a small concrete mixer, the machine can be stirred plastic and hard concrete.
2. Concrete Mixer Machine price list in sri lanka has the advantages of novel structure, reliable performance, high productivity, good mixing quality, light weight, beautiful appearance, easy operation and maintenance, etc.
3.jzc350 with lift concrete mixer is a kind of advanced small-scale concrete mixer.
Electric Concrete Mixer,Electric Concrete Dru Mixer,Large Capacity Concrete Drum Mixer,Rotate Drum Mixer
Shandong Zeyu Heavy Industry Science and Technology Co.,Ltd. , https://www.sdstabilizedsoilmixingplant.com