Vietnam Welding Manpower Supplier

The best welders supplier in Vietnam- Get access to www.vnmanpower.com to be supported.

Vietnam Welding Manpower Supplier

The best welders supplier in Vietnam- Get access to www.vnmanpower.com to be supported.

Vietnam Welding Manpower Supplier

The best welders supplier in Vietnam- Get access to www.vnmanpower.com to be supported.

Vietnam Welding Manpower Supplier

The best welders supplier in Vietnam- Get access to www.vnmanpower.com to be supported.

Vietnam Welding Manpower Supplier

The best welders supplier in Vietnam- Get access to www.vnmanpower.com to be supported.

Showing posts with label welding health and safety. Show all posts
Showing posts with label welding health and safety. Show all posts

Thursday, March 3, 2016

What Kind of Welding Fumes Management Your Facility Needs?

What-Kind-of-Welding-Fumes-Management-Your-Facility-Needs

Proper management of welding fumes is not only morally and legally imperative but also a proven way to improving productivity and quality. A safe and comfortable workplace helps better employee performance, boosts productivity and thus adds to your company’s competitive advantage. 

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Below is a 4-phase approach that you can use to evaluate the kind of welding fumes management your facility needs. Each phase is a possible solution to managing fumes. If you find that the phase you are considering isn’t enough to help your shop, move on to the next one.

1. Substitution

Review welding processes of your shop. It is possible to reduce fume production by changing some of the current materials. For example, you can substitute the current shielding gas with a cleaner alternative. 

2. Isolation

If substitution isn’t enough, consider capturing fumes by using vacuum extraction methods or through hoods arranged over welding zones. Fume extraction systems come in various shapes and sizes with assorted vacuum intensities and air volume displacement abilities. That means you have lots of options for fume management

3. Ventilation

If the two phases above aren’t feasible, ensuring that your workshop has good airflow is an advisable way to reduce welding fumes

4. Safe work practices

Exposure to welding fumes can be reduced by improving the safety measures, using improved housekeeping methods, using better personal protective equipment, and even ensuring proper body positioning. For instance, such respiratory protection as half masks, dust masks, supplied air solutions can reduce your workers’ exposure to fumes. Still, these respirators will be fully effective if they are well maintained, properly fit and have clean filters. They also should be tested to make sure they are compliant to OSHA safety standards. By combining the utilization of better equipment with improved housekeeping practices, you can substantially reduce fume exposure in your workshop. 

Though you’re recommended to consider these phases in order, any improvements to your shop are a positive. That’s why if using substitution and improved housekeeping practices are both feasible ways of reducing welding fumes, don’t just stop at substitution. 

Vietnam Manpower Service and Trading Company (VMST) is most trusted supplier of Vietnamese welding manpower. For any demand, please contact: lana@vnmanpower.com, (+84) 949 594 116.


Friday, January 29, 2016

2 Greatest Keys to Safety in Welding

Measures to safety in welding do more than just establishing and maintaining compliance with regulatory guidelines. 

Related reading:

Different welding operations have different needs. Processes, equipment and welder skill set vary. Similarly, different companies have different safety requirements. But employee safety always should be prioritized. Taking the right precautions to protect your welders can limit the negative effects on production, and increase your employee acceptance of safety regulations. 

What can you benefit from developing a safe work environment?

A safe welding environment can save your money by decreasing liabilities.
It can help attract and retain skilled employees. Attraction and retention of good welders are extremely important considering the welding skills shortage. 

You can learn more about welding skills gap and how to overcome it here:

Directly involving employees in efforts to developing a safer work environment is beneficial to employee morale. That’s because it would empower your welders themselves to be proactive in keeping themselves safe. 

Keys to a safe welding environment

To create a clean, safe and comfortable work environment, consider hazard assessments, training, communication and appropriate selections of welding safety products. 

1. Hazard assessments

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Serious safety fail
Carry out hazard assessments to unfold problematic areas within your workshop. The assessment should include workers and potentially an industrial hygienist. This practice not just betters your understanding of the welding environment, but encourages both managers and welders to pay closer attention to the safety details that may otherwise pass unnoticed. 

Engage workers in hazard assessments by reviewing the recordable injuries and potential safety risks, and then working with them for corrective actions. Managers should also challenge workers to look at overall safety in the weld cell and suggest improvements. 

Also, you can assess and address welding safety hazards utilizing OSHA’s Hierarchy of Controls. This hierarchy consists of 4 steps – process modification/ substitution, engineering controls, work practice controls, and personal protective equipment (PPE). Specifically,

Process modification/ substitution: Changing the entire welding process or adjusting it can help improve safety. For example, you may want to replace manual welding with automatic welding. That so doing can create more efficiency in production for some applications, while also enhancing safety by creating a barrier between your operator and process. This approach can be costly and doesn’t suit to all applications.

Engineering controls: If welding fume is a problem with your facility, you can install fume extraction system to minimize exposure to your welders. 

Work practice controls: You can directly involve your workers with organizing the weld cell and applying lean initiatives (5S, etc.). These practices help create effective workflow and safer work-space. Activities range from organizing equipment and tools to reducing slips, trips and falls.  When having the right tools nearby, workers will be less fatigued while improving their work productivity. 

PPE: To select the correct PPE for the job, you should conduct a job safety analysis. The goal is to find the PPE that provides the appropriate level of protection and don’t interfere with a welder’s normal activities at the same time.

2. Training
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Always communicate changes implemented as a result of hazard assessments, and train workers appropriately if a process has changed or new product introduced. Topics to cover in the training often include:

Review of the hazard assessment process, the findings and actions.
The OSHA regulations related to the hazard found and solutions to it. 
How to use the safety products or processes applied in routine and emergency situations.
Proper maintenance practices for safety equipment.

You can rely on qualified veteran workers to conduct peer training, which would encourage positive interaction among your workers. Also, in some cases, equipment manufacturers and distribution partners provide product training for their customers.

3. Communication

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Share findings, changes and improvements with both managers and welders. Frequent safety discussions encourage worker involvement, cement relationships with the organization and help monitor and assess safety initiatives consistently.

4. Selecting welding safety products
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Having the suitable safety products is crucial in the welding environment. And it goes beyond compliance – it has to do with helping welders achieve greater safety and comfort. Consider the following:

Welding apparel and gloves

These items should fit properly and come in good condition. Proper fit would help minimize injuries and encourages welders to continue wearing the gear for such other tasks as grinding, material handling. There are items available for superior fit – for example, gloves with 3-D pattern for maximized dexterity. 

Importantly, always select the proper protection for each application. Make sure you consider the material type and thicknesses of the product. For instance, there are light and heavy duty welding jackets and gloves for various welding processes and levels of amperage. Involve workers in this selection process. If welders like the products, they will be more likely to take proper care of them. 

Clean and replace the welding apparel and gloved as recommended by the manufacturer, or sooner if needed. 

Welding helmets

Select helmets depending on the welding application. Be sure to adjust the headgear properly for best protection and clear viewing area. Always read the manual and follow the instructions for adjustment. 

Such features as electromagnetic sensing can also help improve welders’ safety and comfort, especially if the welders have an obstructed view of weld joint. This technology, indeed, works through sensors that pick up the arc’s magnetic frequency, eliminating obstruction-caused interference issues. 

Welding respirators

Respirators are categorized as air-purifying or atmosphere-supplying. The air-purifying respirators come with filters and/ or cartridges that eliminate contaminants from the air by filtering them before they reach the welder. The atmosphere-supplying respirators offer clean air from an uncontaminated source. Use assigned protection factor (APF) rating to know the workplace level of protection that each respirator is expected to give when maintained properly.

Be sure to select respirators suitable for welding. Disposable masks must be made of the flame-retardant filter media. Half-mask respirators should be low profile to fit comfortably under the welding helmet without obstructing a welder’s field of vision. Similarly, powered air purifying respirators (PAPRs) and low-profile supplied-air respirators helps enhance operator mobility. Be sure that these are paired with the welding helmet that fits application requirements. Again, encourage a panel of welders to involve in the selection process. You can also consult with an industrial hygienist for particular details for each welding operation and respirator type. 

To instruct welders about mandatory and voluntary usage, you need develop a written respiratory protection program with such information as respirator selection, medical evaluations, fit-testing for tight-fitting aspirators, use in routine and emergency situations, established schedules for cleaning, procedures to ensure the air quality and airflow for the atmosphere-supplying respirators, employee training.

Welding fume extractors

If your company uses the fume extraction systems, welders should understand how to use these machines properly for best protection result. 

The fume extraction arm should be mounted at a 45-degree angle above the arc, at most 18 inches away from the welding area. Still, because welders focus so much on the quality and productivity, they may not always make such adjustments to the arm. There are fume extraction systems in the market that provide an extended fume-capture distance. With them, welders can position the arm at the beginning of welding to gain protection throughout the process. 

Heat stress equipment

Heat stress results from high-temperature environment, welding arc, protective clothing. It can reduce productivity and raise errors. Indeed, productivity decreases by 2% for every degree over 77oF.

Solutions to heat stress can be - using cooling products, choosing the right apparel. Cooling products help reduce body temperature and improve workers’ well-being. Some cooling devices adapt to the welding helmets to give constant airflow over the welder’s head and face; these can lower the temperature by up to 17 degrees. Selecting the right apparel can also tackle heat stress. For example, in warmer climates, select lighter-weight welding jackets that are still capable of giving the right level of protection. 

To wrap up,

Welder involvement and appropriate safety products are the rightest keys to safety welding. Implementing welding safety measures doesn’t need to be a top-down activity. Involving workers and encouraging them to give insight can go far in developing a safe welding operation and sustaining it. Also, selecting dependable safety equipment is important. More durable items last longer, reducing costs. Safety products fitting well and easy to use would reduce downtime and raise worker acceptance. 

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Vietnam Manpower Service and Trading Company - Trusted welding manpower placement agency in Vietnam. We commit to providing welders with required skills and good understanding of safety in welding. For any inquiries, please contact: (+84) 949 594 116, lana@vnmanpower.com, http://vnmanpower.com/

Monday, September 21, 2015

Welding Health Hazards and Prevention That Your Welders Must Know About (Part 2)

Welding may be a lucrative job, but it comes with health hazards that your welders must familiarize with and have ways to minimize their exposure to those dangers. By so doing, they will enjoy their work more.

Related reading:

Welding-Health-Hazards-and-Prevention-That-Your-Welders-Must-Know-About-4

2. Hand-arm vibration

Concerning hand-arm vibration (HAV), there are specific risks with such tasks as grinding and needle scaling that are closely related to the welding process. Its potential health effects include musculoskeletal, vascular and neural disorders that can get debilitating and often go unrecognized or unreported at early stages. The combination of cold working environments and cold weather apparel can raise the risk of the HAV syndrome, vibration white finger, tendonitis, carpal tunnel syndrome. 

Welding-Health-Hazards-and-Prevention-That-Your-Welders-Must-Know-About-5
Fingers become white due to lack of flood flow, then blue because vessels dilate to keep blood in tissues, and finally red since blood flow returns.

How to prevent

The Control of Vibration at Work Regulations 2005 by the UK Health and Safety Executive (HSE) require you to ensure all the risks are controlled and give instruction and training to welders on the risks associated and actions being taken to handle them. Those regulations include an EAV (exposure action value) and ELV (exposure limit value) based on the combination of vibration at the grip points of the equipment and the time for gripping it. For better understanding of those values, you can refer to HSE hand-arm vibration exposure calculator. To ensure that cases are caught early, a system of health surveillance has been mandatory for all workers exposed above the exposure action values.

By obeying the regulations, you will help prevent disability from HAV syndrome and vibration related Carpal Tunnel Syndrome (CTS). Some workers may develop early signs and symptoms of HAV and CTS even at low exposures though, your health surveillance should define any issues early on. Proper action will ease the problem. Whilst HAV symptoms can be averted, it can’t be cured once the damage has been done.

Some cases of HAV and all cases of vibration related CTS must be reported to HSE in line with the RIDDOR (Reporting of Injuries, Diseases and Dangerous Occurrences Regulations).

Regardless of regulations, not few workers in industry will be exposed to the vibration levels that may cause damage. Improvement of tool design and maintenance, improvement of damping and reduction of the level of time exposing to such tools will alleviate the risk. Gloves keep hands warm, and thereby will lower the amount of blanching (whitening) experience, but there is no proof that they will avert the condition.

3. Noise

Except for Tig welding, electric arc welding can produce harmful levels of noise. The other tasks that welders will commonly do and the work environment are also really noisy. This list gives you a nice idea of the noise levels related to different tasks in the welding process:

Tig: over 75 dB(A)
Manual Metal Arc (MMA): 85-95 dB(A)
Metal Inert Gas(MIG): 95-102 dB(A)
Plasma cutting (hand-held up to 100A, cutting up to 25mm only): 98-105 dB(A)
Flame gouging: 95 dB(A)
Flame cutting: up to 100 dB(A)
Air arc gouging: 100-115 dB(A)
Deslagging/chipping: 105 dB(A)
Grinding: 95-105 dB(A)

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Noise pollution prevention is crucial.

How to prevent

The best way to manage this problem is to get rid of the noisy process altogether. For instance, this mayn’t always be feasible but you can buy in material cut to size by the supplier. After the hierarchy of control, the next best options are substitution, engineering controls, administrative controls like training and work scheduling, and then finally PPE (Personal Protective Equipment).

Ear plugs, ear muffs, or other hearing protection should be chosen based on the below criteria:

1. Ability to reduce noise exposure
2. Compatibility with other items of PPE – for example, welding helmets (helpful options include slim line ear muffs with the neck band rather than a head band)
3. Comfort
4. Suitability for the activity and work environment

If PPE if offered, it is vital that your welders are given proper training to ensure they wear their protection in the correction fashion and at all required times.

4. Musculoskeletal disorder (MSD)

The manual handling implemented by welders that are regularly repeated or involve twisting and turning into the awkward postures can be especially hazardous.

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Musculoskeletal disorder (MSD)

Early indications of MSD include tingling, numbness, pain, restriction of joint movement, or soft tissue swelling. As shown in studies, recurring or persistent general shoulder pain is often reported by welders. Also, they experience lower extremity MSDs, strains, sprains of low back muscles, and associated low back disorders. 

Some MSDs gradually develop over time due to intensive work. When the working environment requires workers to assume static or awkward body postures for a prolonged period of time, the workers may be exposed to MSDs. Also, the development of MSDs may be associated with genetic causes, gender, age and other factors. Finally, evidently, reports of MSDs may be connected with some psychosocial factors like job dissatisfaction, limited job control. 

In case you are interested in:

How to prevent

The Provision and Use of Work Equipment Regulations 1998 require you to consider the risks to health and safety of employees when selecting the equipment that they will use. This includes risks related manual handling. Selecting the right tool will diminish the chances of:

Personal suffering due to musculoskeletal disorders
Financial burden of sickness absence and higher issuance premiums
Lowered productivity
Restricting the earning potential of workers unable to return to the same type of work.

The management also should develop a proper process of protecting their workers – that is, providing management support, involving workers, providing training, defining problems, implementing solutions, addressing reports of injuries, evaluating progress. 

Additionally, there are some hazards to health and safety that employers should also take good control. For example,

5. Optical radiation

The welding process generates a large amount of visible light, ultraviolet and infrared. Exposure to radiation from an arc can cause skin burns and eye damage. That’s why welders need wear clothing to protect their bodies and arms, no matter what weather conditions. Also, they need efficient eye protection, which is often given in the form of a protection shield. The precise selection of the shade of glass filter in those shields relies on the type of welding operation, because they vary in their light output.

Welder assistants also need eye protection and protective clothing. Passers-by should be protected to putting opaque or appropriately filtered screens around the working area.

6. Burns and mechanical hazards

Welders need qualified gloves, leather gauntlets to be preferable, safety boots or shoes, and qualified cap and overalls. Also, a leather apron may be needed. Welding creates a number of molten droplets of metal that are scattered in all directions. Essentially, the welders wear clothing that won’t burn or melt.

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Welding creates a number of molten droplets of metal that are scattered in all directions. Essentially, the welders wear clothing that won’t burn or melt.

As a whole,

Health and safety in the welding industry have witnessed a significant improvement over the last few years though, to be fair, there is still work to be done. In most countries, there is extensive legislation that assigns responsibilities to employers to take reasonable care of health and safety at work for their workers, including the workshop environment, electrical safety, fume, noise, hand-arm vibration, MSD, optical radiation, burns and mechanical hazards, gas bottles, welding in difficult situations (ex. Outdoors, confined spaces, etc.) Above specifies of top hazards and their management can help employers with such crucial responsibilities. 

Friday, September 18, 2015

Welding Health Hazards and Prevention That Your Welders Must Know About (Part 1)

Welding may be a lucrative job, but it comes with health hazards that your welders must familiarize with and have ways to minimize their exposure to those dangers. By so doing, they will enjoy their work more.

See also:
Welding Health Hazards and Prevention That Your Welders Must Know About (Part 2)

Welding-Health-Hazards-and-Prevention-That-Your-Welders-Must-Know-About-1

Welding may be a lucrative job, but when it comes to welding health and safety, welding involves heat, smoke, gas, and tiny metal particles that pervade the air that your welders breathe.

In case you are interested in:

The welding fume and hot cutting processes is a varied mix of very fine particles and air-borne gases that can cause health problems if inhaled. Harmful gases present in the fume can be Nitrous Oxide (N₂O), Carbon Dioxide (CO₂), Carbon Monoxide (CO), Argon (Ar), Helium (He), and Ozone (O₃).

Top 4 occupational health hazards of welding are respiratory illnesses, vibration issues, noise related problems, and musculoskeletal disorders (MSD). Ensure your welders seize those risks and how to prevent them. The ensured health and safety is crucial in motivating and securing your workers. 

You may be concerned about:

1. Respiratory illnesses

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Welding respiratory protection
Respiratory problems include pneumonia, occupational asthma, cancers, metal fume fever, irritation of throat and lungs, temporarily reduced lung function.

Pneumonia often results from welders prone to the lung infection. Whilst advanced antibiotics cure the infection, severe cases can induce dozens of welders being hospitalized each year. 

Though asthma is not really caused by welding fume, welders are recommended to protect themselves and control welding fume to the lowest levels as possible.

For cancers problems, welding fume, especially stainless steel welding, is classified as potentially carcinogenic to humans. 

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Welding fume is internationally classified as potentially carcinogenic to humans.
Metal fume fever has flue like symptoms. For example, after inhaling the gas byproduct of the welding process, welders can experience headache, nausea, runny nose, fever, and even chills. Whilst those symptoms often go away in one day or two, the health experts warn that prolonged unprotected exposure to those fumes, and inhalation of very tiny metal particles, may cause long-term fatal illnesses.

Unfortunately, it is not true to drink milk before welding to prevent getting metal fume fever. 

Also, gases and fine particles of welding fume can induce irritation of throat and lungs (i.e dryness of throat, tickling coughing, or tight chest). Ozone is a specific cause of this problem when Tig welding aluminum and stainless steels. Fluid on the lungs can eventuate in case of extreme exposure to ozone. 

Temporarily reduced lung function can occur due to prolonged exposure to welding fume. Fortunately, the effects aren’t permanent. 

Importantly, your welders are aware of those risks, and to prevent them, they should grasp tightly occupational safety standards. Personal Protective Equipment (PPEs) should be made available to them. Likewise, a working environment in compliance with the government’s occupational safety standards should be provided to the welders.

Here are some safety suggestions that can help minimize the health risks that your welders face:

Respiratory Protective Equipment (RPE) can help address the problem of fume. It is made expressly for welders. Disposable face masks can protect short jobs. Like reusable respirators, they should be fit tested on individuals because one type of mask doesn’t fit all. The reusable respirators should be monthly inspected, and records must be kept. Meanwhile, the battery powered filtering welding helmet is more expensive. This type of equipment can be long lasting if it is well looked after, and may be a cost-effective option in the long run.

Make sure your welders wear PPEs, and wear them properly. It will be counter-productive to put on PPE but fail to wear it comfortably or conveniently. PPEs also come with the instructions on how to wear them properly. Those instructions should be studied carefully, and carried out by the welder. 

Always ensure your welders work in a well-ventilated place. Otherwise, they will expose higher risk of inhaling harmful fumes and gases. Working in a poorly-ventilated area also lowers oxygen levels in the air, which can induce asphyxiation and cause death in turn.

Take the best welding practices. Your welders should know which technique is the best for welding a certain type of metal, and which techniques are as effective yet safer regarding the types and volumes of the emitted gases and fumes. 

Avoid welding on painted metal. The extra fumes that melting paint can produce will add more danger to the already-perilous substances that your welders are exposed to while welding.

Encourage your welders to change their working position from time to time. By adjusting their position whilst welding, they help themselves avoid inhaling the dangerous mix of particles and gas.

Maintain a clean, well-organized working area to minimize injuries and work-related dangers.

Facilitate your welders attending work safety training seminars. Knowledge can protect them from more health hazards. 

Provide medical checks-up for welders.

Welders need shower and change into new clothes before they head home and interact with other people, especially their family. Their work clothes and shoes may carry toxic chemicals to their car, and even their home, accidentally putting their family and friends in danger.