What are the common faults and solutions of liquefied natural gas cylinder manufacturing machines
1. Welding quality issues
Porosity in welds:
Causes: Welding materials are damp, welding parameters are inappropriate, gas protection is poor, etc.
Solution: Replace dry welding materials; adjust welding current, voltage, speed and other parameters; check the gas protection system to ensure that the gas flow and purity meet the requirements.
Weld cracks:
Causes: The welding material does not match the parent material, the welding stress is too large, the welding process is improper, etc.
Solution: Select welding materials that match the parent material; take appropriate preheating and post-heating measures to reduce welding stress; optimize the welding process, such as adjusting the welding sequence, using multi-layer and multi-pass welding, etc.
Weld lacks fusion:
Reasons: welding current is too small, welding speed is too fast, groove angle is too small, etc.
Solution: Increase welding current; reduce welding speed; appropriately increase groove angle to ensure full fusion during welding.
2. Stamping problems
Stamping part size deviation:
Causes: mold wear, inappropriate stamping parameters, unstable material properties, etc.
Solution: Check the mold and repair or replace it in time if it is worn; adjust the stamping pressure, stroke and other parameters; inspect the material to ensure that its performance meets the requirements.
Surface quality issues of stamping parts:
Reasons: Rough mold surface, poor lubrication, too fast stamping speed, etc.
Solution: Polish the mold to improve surface finish; increase the amount of lubricant used; reduce the stamping speed to avoid surface quality problems caused by excessive stamping.
3. Rolling problem
Rolling is not round:
Reasons: insufficient precision of the plate rolling machine, inappropriate rolling parameters, plate quality problems, etc.
Solution: Check the accuracy of the plate rolling machine, and adjust or repair it if there is any problem; optimize the rolling parameters, such as adjusting the pressure and speed of the plate rolling machine; inspect the plate to ensure that its quality meets the requirements.
Sheet cracking during rolling:
Causes: Problems with the sheet material, improper rolling process, defects on the edge of the sheet, etc.
Solution: Replace the plate with qualified quality; optimize the rolling process, such as using appropriate preheating, controlling the rolling speed, etc.; check the edge of the plate, and repair or replace it if there are defects.
4. Equipment failure
Electrical failure:
Causes: Damage to electrical components, poor line contact, control system failure, etc.
Solution: Check electrical components and replace them if damaged; check line connections to ensure good contact; inspect and repair the control system to eliminate faults.
Hydraulic failure:
Causes: Hydraulic pump failure, hydraulic cylinder leakage, hydraulic valve failure, etc.
Solution: Check the hydraulic pump and repair or replace it if it is faulty; check the hydraulic cylinder and repair it if it is leaking; check the hydraulic valve and replace it if it is faulty.
Mechanical failure:
Causes: Wear of transmission parts, damage of bearings, loose connections, etc.
Solution: Check the transmission parts and replace them if they are worn; check the bearings and replace them if they are damaged; check the connectors to ensure they are securely fastened.
When dealing with the failure of the LNG cylinder making machine, you should first determine the cause of the failure and then take appropriate measures. If you cannot solve the failure yourself, you should contact the equipment manufacturer or professional maintenance personnel for repair in time. At the same time, in order to reduce the occurrence of failures, the equipment should be regularly maintained to ensure that the equipment is in good operating condition.
When the machine fails, you can refer to the method we provide for one-on-one test and error correction. If you want to know more about the solution to the failure of the liquefied natural gas cylinder manufacturing machine, please pay attention to www.qinengwelding.com !
