Instruction on labor protection for a foundry worker

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OCCUPATIONAL SAFETY AND HEALTH
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Instruction on labor protection for the foundry worker. Full document

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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1. General safety requirements

1.1. Work as a foundry worker is allowed for workers who are at least 18 years old, who have passed a medical examination, special technical training and have passed a knowledge test in the commission of the enterprise. Admission to independent work is issued in writing in the briefing log at the workplace.

Before being allowed to work, the caster must undergo an introductory briefing and briefing at the workplace. In the future, he is obliged to undergo repeated briefings at least once every 3 months, unscheduled and targeted briefings.

1.2. The caster must know:

main types and principles of equipment malfunctions, ways to eliminate them;
safe practices when performing operations;
dangerous factors in the performance of foundry work;
first aid rules.

1.3. The caster must comply with:

rules of internal labor regulations;
fire safety rules;
do not go beyond the fences of hazardous areas;
do not touch electrical equipment and electrical wires (especially beware of bare or broken wires);
do not repair the malfunction of electrical equipment;
requirements for prohibiting, warning, indicative and prescriptive signs, inscriptions and signals;
pass through the territory of the depot along the established routes;
be extremely careful in traffic areas.

1.4. Workers engaged in foundry work, in order to protect themselves from dangerous and harmful production factors, must be provided with overalls and safety devices in accordance with the requirements of the Model Industry Standards for the free issue of special clothing and footwear to workers and employees, as well as other PPE.

1.5. When carrying out foundry work, workers may be exposed to the following hazardous and harmful factors:

moving parts of production equipment;
sharp edges and roughness on the surface of workpieces, parts of equipment and tools;
flying fragments from the working parts of the equipment in case of their possible destruction;
increased content of harmful vapors and aerosols in the air of the working area;
increased voltage in the electrical circuit of the equipment;
increased noise level at the workplace when working on mechanical presses and hammers;
increased level of electromagnetic radiation;
elevated surface temperature of the equipment;
increased level of brightness of light and infrared radiation;
physical overload during the transportation of workpieces;
fire hazard.

1.6. The caster must be aware that in case of violation of the requirements of the instructions, he is liable in accordance with applicable law.

2. Safety requirements before starting work

2.1. Put on overalls and tuck them in so that they do not have loose ends and unbuttoned cuffs.

2.2. Clean work area and aisles.

2.3. Check the serviceability of the tool, fixtures, you need to require that the workplace is adequately lit.

2.4. Check the presence and serviceability of electrical equipment grounding.

2.5. Check the presence of fences and blocking devices, alarms.

2.6. Check the condition of the descaling brushes, the handle should be of such length that the worker's hands are out of the zone of the moving parts of the press or tooling.

2.7. Check the absence of defects in the tooling (cracks, chips).

3. Safety requirements during work

3.1. Work with the right tool.

3.2. Use tongs corresponding to the size of the package, and jaws to its shape, to the round workpiece, the jaws of the tongs must be fitted so that they capture it at all points; to capture square blanks, the pliers must have curved jaws, check the condition of the tool.

3.3. Casting in metal molds

before pouring, the molds must be securely fastened to the table of the chilling machine or stably and horizontally installed on the pouring platform.
pouring areas, drive of moving molds, movement of rods, drive of power peripheral devices (sprayers, excavation devices) must be equipped with protective devices.
metal ladles and spoons for pouring metal into a chill mold must be heated before immersion in metal.
molds before each supply of metal must be cleaned of foreign inclusions. To clean and lubricate the molds, devices should be used that exclude the presence of the worker's hands in the mold area.
if it is necessary to inspect and maintain the molds from the side opposite the caster's workplace, the injection molding machine must be turned off.
for dosing the supply of alloys, devices should be used that exclude their spillage or splashing.
storage of hot castings at machines (mold molds) should be carried out in a special container and removed from them by periodic or continuous vehicles.

3.4. Casting in shell molds.

sand-resin mixtures should be produced without the use of flammable solvents or with the adoption of measures to protect against explosions in sealed mixers, into which the raw materials must be fed through special dispensers. The mixers must be equipped with exhaust ventilation and blocking to ensure that the drive stops and the feed of the mixture components is stopped when the mixer covers are open.
if the main fan of the local exhaust ventilation system fails during the operation of the mixer, the preparation of the mixture should be stopped due to the presence of phenol and formaldehyde in the emissions.
the preparation of the mixture should be stored in tightly closed metal containers or bunkers at a temperature not exceeding 30 degrees.
in the manufacture of molds or rods using a rotary hopper, the joint between the model plate and the rotary hopper must be tight and prevent spillage of the mixture at the moment of rotation of the latter.
molds and cores produced in heated tooling should be placed in shelters, ventilated conveyors or cooling tables equipped with local exhaust ventilation until they are completely cooled.
pouring shell molds should be carried out in special areas equipped with exhaust ventilation.
mechanical or other devices, reliable bonding should be used to prevent the metal from breaking through the connectors of the shell molds.
knockout of castings from shell molds should be carried out on knockout grates, machines equipped with exhaust ventilation.
spent molding sands should be regenerated for reuse in production. If it is impossible or inexpedient to regenerate, the waste should be disposed of or taken to dumps.

3.5. On the side of the aisles, shields should be installed to protect workers from flying fragments and scale.

3.6. Do not touch hot metal, even with gloves on.

3.7. If sparks, fragments and scale fly off during operation, use safety glasses.

3.8. Don't get distracted by side conversations.

3.9. Prepare the tool for work in advance, in cases of uselessness, remove it to the designated place.

4. Safety requirements in emergency situations

4.1. When receiving a thermal burn: if the victim’s clothing catches fire, you must quickly throw any dense cloth over him or knock down the flame with water.

It is not allowed to run in burning clothes, as the wind, fanning the flame, will increase and intensify the burn.

4.2. When assisting the victim, in order to avoid infection, one should not touch the burned areas of the skin or lubricate with ointments, fats, oils, sprinkle with baking soda, starch. It is impossible to open bubbles, remove mastic, rosin adhering to the burnt place, because. removing them, you can easily tear off the burned skin and thereby create favorable conditions for infection of the wound.

For small area burns of the 1st and 2nd degree, a sterile bandage should be applied to the burned area of the skin and sent to the first-aid post.

In case of extensive burns, the victim must be wrapped in a clean cloth without undressing him, cover him warmly and call an ambulance.

5. Safety requirements at the end of work

5.1. Gather hand tools and accessories, and take them to the designated (designated) place. Return the defective instrument for repair.

5.2. Tidy up the workplace, remove cuttings, scale.

5.3. Notify the work manager of any problems that occur during work.

5.4. Take a shower.

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