Instruction on labor protection for the moulder

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OCCUPATIONAL SAFETY AND HEALTH
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Instructions on labor protection for the moulder. Full document

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. To work as a moulder, workers are allowed, not younger than 18 years old, who have passed a medical examination, special technical training and 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 molder 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 shaper needs to 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 shaper must:

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. To protect against hazardous and harmful production factors, workers engaged in molding 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 molding 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 molder must be aware that in case of violation of the requirements of the instructions, he is liable in accordance with applicable law.

2. Labor protection requirements before starting work

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

2.4. Clean work area and aisles.

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

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

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

2.8. 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.

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

3. Labor protection requirements during work

3.1. The shaper must ensure that:

detachable metal molds and molds must have a snug fit of half-moulds, their precise fixation and sufficient strength. Locking devices must ensure reliable connection of half-moulds during pouring and hardening of metal;
handles and levers on molds intended for locks of parting half-moulds, ejection and extrusion of rods, by their design and location must be safe and eliminate the risk of pinching fingers and hands of workers in all their positions;
water-cooled molds must have tight connections with pipelines to prevent water from entering the mold cavity;
molds, regardless of their size and types of centrifugal casting machines, must be enclosed in a protective casing;
trolleys for loading molds into autoclaves must have handles-brackets (for gripping and moving), located so that the flasks moving from the rollers could not press the hands of the worker.

3.2. Workplaces for the manufacture of flask molds and cores must be equipped with gratings that ensure the removal of molding sand spillage.

3.3. The flasks must have strong, securely fastened trunnions, lugs, handles, brackets that ensure their safe fastening and transportation by hoisting mechanisms.

3.4. The flasks transported along the roller tables must be equipped with lugs to prevent pinching of the worker's hands between the flasks, and constructive measures must also be taken to prevent the worker's hands from getting between the lower edge of the flask and the roller of the roller table.

3.5. The flasks must be stacked horizontally in order to ensure stability.

3.6. Correction and finishing of forms in a suspended state and finding people under the form is not allowed. To do this, the form must be lowered onto special stands.

3.7. To clean and remove sand, dust from the surfaces of pattern equipment, equipment, rods and molds, dust suction devices and devices should be used. Blowing with compressed air is not allowed. The use of brushes is allowed.

3.8. Coating of surfaces of molds and rods with graphite powder, talc should be carried out in ways that exclude the spread of their aerosols in the air of the working room. The use of personal protective equipment by employees is mandatory.

3.9. Drying of molds and cores should be carried out in ways that exclude the release of gases, dust and a significant amount of heat into the working room.

3.10. During the preparation of dried half-molds in stacks, metal spacers of the same shape and size should be placed between them.

3.11. For preliminary drying in the soil of half-moulds and rods without flammable binding materials, electric air heaters, gas dryers, as well as chemical hardening of molds on liquid glass using carbon dioxide, should be used.

3.12. Molds before each supply of metal must be cleaned of foreign matter. 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.

3.13. 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.

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

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

3.16. Don't get distracted by side conversations.

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

4. Labor protection 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.

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

4.3. 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 a danger of infection of the wound.

4.4. 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.

4.5. 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. Labor protection 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 supervisor of any problems that occur during work.

5.4. Take a shower.

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