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Safe operation regulations for machining
by：Foxron
2021-11-19
a. The cutting tool must be sharp and grind out a larger clearance angle and relief angle; it is not allowed to use blunt, chipped or broken tools.
b. Under normal circumstances, try to use a large feed rate for processing, and avoid using a small feed rate to produce chips with a larger thickness.
c. Don't let the tool stop on the workpiece halfway.
d. When using a small amount of cutting, use mineral oil coolant to reduce cooling.
e. If there is a steel core lining in the magnesium alloy parts, avoid sparks when colliding with the tool.
f. Keep the environment tidy and clean.
g. It is strictly forbidden to smoke, start fire, or electric welding in the processing work area.
3. Safety issues in grinding
Magnesium powder is easy to burn and will cause an explosion when suspended in the air.
Therefore, the following precautions must be taken when grinding magnesium alloy parts:
a. There must be a grinder specially used for processing magnesium alloy parts. Before dressing the grinding wheel, the vacuum cleaner should be thoroughly cleaned.
b. When reworking and grinding the surface of magnesium alloy parts washed with chromate, it may cause sparks, so be especially careful and never allow dust to gather nearby.
c. Grinding equipment operators should use smooth hats, smooth gloves and smooth flame-retardant clothing without pockets and cuffs. The aprons or protective clothing used should be clean, dust-free and easy to take off.
d. The magnesium waste storage should be cleaned up in time, and a longer storage time limit should be set.
e. Sufficient yellow sand should be stored in the work area to prevent fire fighting.
4. Treatment of magnesium chips and fine powder
The waste must be stored separately, and can not be exposed to rain
Put the magnesium scraps produced by processing in barrels and soak them with special cutting fluid for magnesium processing. Place it in a well-ventilated place where it is not exposed to rain or water, and it cannot be covered to allow the hydrogen that may be generated to volatilize (the hydrogen may not be fully volatilized, which may cause an explosion).
It is strictly prohibited to smoke, welding and any other fire-producing activities in the surrounding area.
5. Extinguishing Magnesium Chips Burning
A, D class fire extinguisher.
The material usually uses sodium chloride-based powder or a graphite-based powder that has been passivated. The principle is to smother the fire by removing oxygen.
b. Covering agent or dry sand.
A small area of u200bu200bfire can be covered with it, and the principle is to smother the fire by removing oxygen.
c. Cast iron scraps.
It can also be used when there is no other good fire extinguishing material. The main function is to lower the temperature below the ignition point of magnesium, instead of smothering the fire.
b. Under normal circumstances, try to use a large feed rate for processing, and avoid using a small feed rate to produce chips with a larger thickness.
c. Don't let the tool stop on the workpiece halfway.
d. When using a small amount of cutting, use mineral oil coolant to reduce cooling.
e. If there is a steel core lining in the magnesium alloy parts, avoid sparks when colliding with the tool.
f. Keep the environment tidy and clean.
g. It is strictly forbidden to smoke, start fire, or electric welding in the processing work area.
3. Safety issues in grinding
Magnesium powder is easy to burn and will cause an explosion when suspended in the air.
Therefore, the following precautions must be taken when grinding magnesium alloy parts:
a. There must be a grinder specially used for processing magnesium alloy parts. Before dressing the grinding wheel, the vacuum cleaner should be thoroughly cleaned.
b. When reworking and grinding the surface of magnesium alloy parts washed with chromate, it may cause sparks, so be especially careful and never allow dust to gather nearby.
c. Grinding equipment operators should use smooth hats, smooth gloves and smooth flame-retardant clothing without pockets and cuffs. The aprons or protective clothing used should be clean, dust-free and easy to take off.
d. The magnesium waste storage should be cleaned up in time, and a longer storage time limit should be set.
e. Sufficient yellow sand should be stored in the work area to prevent fire fighting.
4. Treatment of magnesium chips and fine powder
The waste must be stored separately, and can not be exposed to rain
Put the magnesium scraps produced by processing in barrels and soak them with special cutting fluid for magnesium processing. Place it in a well-ventilated place where it is not exposed to rain or water, and it cannot be covered to allow the hydrogen that may be generated to volatilize (the hydrogen may not be fully volatilized, which may cause an explosion).
It is strictly prohibited to smoke, welding and any other fire-producing activities in the surrounding area.
5. Extinguishing Magnesium Chips Burning
A, D class fire extinguisher.
The material usually uses sodium chloride-based powder or a graphite-based powder that has been passivated. The principle is to smother the fire by removing oxygen.
b. Covering agent or dry sand.
A small area of u200bu200bfire can be covered with it, and the principle is to smother the fire by removing oxygen.
c. Cast iron scraps.
It can also be used when there is no other good fire extinguishing material. The main function is to lower the temperature below the ignition point of magnesium, instead of smothering the fire.
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