Free technical library

Instructions for labor protection when applying metal coatings during hydrosandblast cleaning of parts

Occupational Safety and Health / Standard instructions for labor protection

 Comments on the article

Safe Operation

1. General safety requirements

1.1. On the basis of this instruction, labor protection instructions are developed for workers employed in the processes of applying metal coatings during hydrosandblasting of parts (hereinafter referred to as workers engaged in hydrosandblasting of parts).

1.2. Workers at least 18 years of age who have been trained, instructed and tested on labor protection, who have mastered safe methods and techniques for performing work, methods and techniques for the correct handling of mechanisms, devices, tools and loads are allowed to perform hydrosandblast cleaning of parts.

1.3. To work on hoisting machines controlled from the floor, to hang the load on the hook of such machines, workers are allowed at least 18 years old, trained in a special program, certified by the examination committee of the organization and having a certificate for the right to use hoisting machines and hooking loads.

1.4. When performing work, it is necessary to comply with the accepted technology of hydrosandblast cleaning of parts. It is not allowed to apply methods leading to violation of labor safety requirements.

1.5. In case of any questions related to its safe performance in the process of work, you must contact your immediate or higher manager.

1.6. Workers engaged in hydrosandblast cleaning of parts are required to comply with the internal labor regulations of the organization.

1.7. During hydrosandblast cleaning of parts, the worker may be exposed to dangerous and harmful production factors:

• high humidity;
• increased noise level;
• increased voltage in the electrical circuit, the closure of which can occur through the body of the worker;
• flying particles of abrasive materials.

1.8. Workers engaged in hydrosandblast cleaning of parts must be provided with personal protective equipment.

1.9. The room in which hydrosandblast cleaning of parts is carried out must be isolated from other production areas and equipped with a supply and exhaust ventilation system with air purification and collection of abrasive materials.

1.10. Hydro-sandblasting chambers must be waterproof and equipped with special devices for moving parts. Control of such devices should be carried out from the outside of the camera. Observation of the cleaning process in the chamber should be carried out through special windows with glasses of the required strength.

1.11. The design of the cleaning chamber should exclude the presence of an employee in the chamber itself, for which it must be equipped with tilting tables and manipulators.

1.12. Installations for hydrosandblasting must be equipped with:

• an alarm that should be triggered when the doors are opened;
• blocking devices for disabling high-pressure pump drives when opening chamber doors;
• devices for heating the working mixture up to 20 - 30°C;
• luminaires in dustproof and moisture resistant design.

1.13. Hand holes in a closed chamber should not have open spaces through which noise can enter the room. It is necessary that the elastic gloves and sleeves in the handholes be made as one piece.

1.14. The hydraulic monitor must be fixed on a ball pin or securely suspended on a special bracket.

1.15. The order of laying parts should be established by the technological documentation.

1.16. Details for hydrosandblasting must be submitted in a special container.

1.17. When sandblasting, the content of sand in water (by weight) should not exceed 50%.

1.18. The temperature of the pulp should be 20° - 30°C regardless of the season.

1.19. The temperature of the parts entering the hydro-sandblasting machine must not exceed 45°C.

1.20. In the event of an accident, a worker engaged in hydro-sand blasting of parts must stop work, notify his immediate or superior supervisor and seek medical attention.

1.21. An employee engaged in hydrosandblast cleaning of parts must observe the rules of personal hygiene: before eating and after finishing work, wash their hands with warm water and soap. Food must be taken in rooms specially equipped for this purpose.

1.22. Workers engaged in hydrosandblast cleaning of parts must be able to provide first aid to the victim.

1.23. Workers engaged in hydrosandblast cleaning of parts who do not comply with the requirements of this instruction are held liable in accordance with applicable law.

2. Safety requirements before starting work

2.1. Inspect the workplace, put it in order, clear the aisles and do not clutter them up.

2.2. Inspect, tidy up and put on personal protective equipment.

2.3. Check the serviceability of the valves of the steam pipelines, air pipelines, water supply.

2.4. Check the tightness of the fastening and connection of the hoses.

2.5. Make sure that the floor is dry and the foot grate located near the hydrochamber is stable and in good working order.

2.6. Turn on and check ventilation. Hydro-sandblast cleaning of parts should be carried out only with active ventilation. Turn on ventilation at least 5 minutes before starting work.

2.7. Check availability and serviceability:

• guards and guards for all rotating and moving parts;
• current-carrying parts of electrical equipment (starters, transformers, buttons and other parts);
• grounding devices;
• safety devices for protection against flying particles;
• protective interlocks;
• fire extinguishing means.

2.8. Check the illumination of the workplace. The voltage for local lighting should not exceed 50 V.

2.9. When working with lifting mechanisms, check their serviceability and comply with the requirements of the relevant labor protection instructions.

3. Safety requirements during work

3.1. Keep the workplace clean and free from clutter.

3.2. It is forbidden to work with broken or cracked glass on the viewing window.

3.3. Sand sifting should be carried out with the ventilation turned on and only inside the hydrosandblaster.

3.4. Loading, stacking and removal of parts should be carried out with the supply of abrasive to the working space of the chambers turned off.

3.5. Check the presence and condition of parts loaded into the drum, their configuration. Do not overload the drum.

3.6. It is forbidden to enter the workspace of the hydrosandblaster during cleaning.

3.7. It is necessary to control the nozzle when cleaning parts outside the working space of the chamber.

3.8. When blasting, stand on a wooden foot grate.

3.9. While cleaning parts, direct the nozzle of the ejection gun with one hand and move the parts with the other hand.

3.10. It is necessary to wash the parts in the bath only with rubber gloves.

3.11. Transport the cleaned parts using a lifting mechanism to a designated area for drying.

3.12. Lay the parts in such a way that they are in a stable position.

3.13. Check the serviceability of the system of interlocks, alarms, limit switches, chains, hooks and devices for hanging parts and the reliability of their fastening.

4. Safety requirements in emergency situations

4.1. If a malfunctioning operation of the hydrosandblasting unit is detected, disconnect it from the power supply network and the high pressure supply network and notify your immediate or superior manager about this.

4.2. In case of injury, poisoning and sudden illness, the victim should be provided with first (pre-medical) aid and, if necessary, his delivery to a healthcare facility should be organized.

4.3. In case of electric shock, take measures to release the victim from the action of the current as soon as possible.

4.4. When rotating parts of machines, slings, cargo hooks and other equipment capture parts of the body or clothing, give a signal to stop work and, if possible, take measures to stop the machine (equipment). You should not try to free yourself from the grip if it is possible to attract others.

4.5. In the event of a fire:

• stop working;
• turn off electrical equipment;
• inform the immediate or higher manager about the fire and call the fire brigade;
• take, if possible, measures to evacuate people and start extinguishing the fire with fire extinguishing equipment.

5. Safety requirements at the end of work

5.1. Turn off the installation.

5.2. Disconnect electrical equipment from the network.

5.3. Close the valves of the steam pipeline, air pipeline and water pipeline.

5.4. Before handing over the shift, check the serviceability of the installation for hydrosandblasting:

• the presence and condition of the fences;
• protective interlocks;
• alarm;
• grounding;
• proper lighting and ventilation systems.

Record the results of the check in the shift acceptance and delivery log, inform the foreman about malfunctions.

5.5. Tidy up the workplace, put the tools and fixtures in the tool box.

5.6. Take off overalls and other personal protective equipment and hang them in a specially designed place.

5.7. Wash hands and face with warm soapy water and shower if possible.

 We recommend interesting articles Section Standard instructions for labor protection:

▪ Toolmaker. Standard instruction on labor protection

▪ Forester. Standard instruction on labor protection

▪ Meat cutter. Standard instruction on labor protection

See other articles Section Standard instructions for labor protection.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive Connecting chips at unthinkable angles 24.05.2021 Researchers at HRL Laboratories have developed a 3D microprinting technology that promises to change the approach to multichip packaging. Instead of the usual vertical etching of channels in a substrate for through metallization, scientists propose to print substrates with ready-made holes for metallization. In this case, the routing can be provided at incredible angles and in the most incredible directions, which will make the layout more dense. The work of HRL Laboratories was carried out under the FOCII program of the US Defense Advanced Research Projects Agency (DARPA). The FOCII (FOcal arrays for Curved Infrared Imagers) program aims to develop simple and extremely wide-angle cameras for reconnaissance, machine vision and other applications. For such cameras, curved image sensors are made, which frees them from complex corrective optics. And curved sensors, as you might guess, will be much more compact if they are connected to the controller not by straight metallization channels, but by curved ones. HRL Laboratories was able to print an insulating substrate with curved channels for metallization at a resolution of 2 µm. The inner diameter of the channels in this case was 10 μm. This is enough to connect the image sensor to the processor for processing. Printing is carried out by laser stereolithography on polymer or ceramic resin. "We are developing this technology to improve the XNUMXD integration of microelectronic subsystems such as infrared cameras and radar receivers," said HRL Group Manager Dr. Tobias Schaedler. "Smaller, lighter and more energy efficient system designs are currently limited to electrical routing and packaging , but our additive technology can eliminate this bottleneck."

Other interesting news:

▪ Giant accumulations of turbulent gas discovered in distant galaxies

▪ AMD Trinity APUs

▪ The dam is about to burst

▪ too good memory

▪ Microparticles in aerosols increase rain and wind

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Radioelectronics and electrical engineering. Article selection

▪ article Operative-search activity. Crib

▪ article What Was the Star of Bethlehem? Detailed answer

▪ article Kupyr forest. Legends, cultivation, methods of application

▪ article Amplifier on 4 transistors with floating power supply. Encyclopedia of radio electronics and electrical engineering

▪ article Electrical safety of computers and computer networks. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages ​​of this page

Arabic	Hebrew	Polish
Bengali	Hindi	Portuguese
Chinese	Italian	Spanish
English	Japanese	Turkish
French	Korean	Ukrainian
German	Malay	Vietnamese

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua
2000-2024