Safety practices in foundry

1 Answer

Answer :

1. Even trace amounts of MOISTURE and MOLTEN METAL don't mix; Steam explosions are the cause of death in foundries.

2. NEVER put water on a metal fire. This can cause a HUGE EXPLOSION

3. Have a DRY pile of sand and a shovel ready to put out fires or to control metal spills.

4. Have a sand bed under all areas. The sand bed should be at least 3 inches thick. 

This will help in containing metal spills and will help protect flooring.

5. Never pour over wet ground. Remember, even TRACE AMOUNTS of MOISTURE can cause EXPLOSIONS.

6. Molten metal spilled on concrete will cause the concrete to explode. Use a thick sand bed over concrete.

7. Always use clean metal as feedstock. Combustion residues from some lubricants and paints can be very toxic.

8. Always operate in a well-ventilated area. Fumes and dusts from combustion and other foundry chemicals, processes and metals can be toxic.

9. Use a NIOSH rated dusk mask. Dusts from sand, parting dusts and chemicals can be hazardous or cancer causing. Protect your lungs.

10. Wear safety gear, This includes, Leather shoes , Fireproof apron ,Foot and leg protection, Proper gloves, wire mesh face shield, Safety glasses , Cotton baseball hat.

11. Never use a crucible that has been damaged or dropped. It's just not worth the risk. Imagine what would happen if a white-hot crucible of brass crumbled as you were carrying it.

12. Always charge crucibles when cold. Adding metal to a hot crucible is really dangerous. If there is moisture on the metal, even just a haze, the metal can cause the entire contents of the crucible to explode.

13. Spilled molten metal can travel for a great distance. Operate in a clear work area.

14. use Long-handled pliers (or tongs) and rod. The pliers are designed for adding things to the crucible and adjusting coals, etc. The rod is used for mixing the contents of crucible and move dross to the side just before pouring.

15. Think about what you are doing at all times. Focus on the job at hand and the next step. Have all moves planned and rehearsed prior to any operation.

16. Educate yourself beforehand and always be careful of your own and bystander safety.


Related questions

Description : Safety Practices

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description : Define Feed and speed in shaping machine

Last Answer : 1) Feed: Feed (S) is the relative movement of the work or tool in a direction perpendicular to the axis of reciprocation of the ram per double stroke. It is expressed in mm per stroke. 2) Speed: ... speed is the speed at which the metal is removed by the cutting tool in a period of one minute.

Description : List types of chips produced in machining process.

Last Answer : The various types of chips produced in machining process are as follows: 1. Continuous chips: According to its name, continuous chips have a continuous segment. . 2. Discontinuous chips or segmental chips: ... chip is same as the continuous chips except a built edge is form at the face of tool.

Description : What are the rules of an ex-wife turning in an ID Card?

Last Answer : Where do you live? This could be a question for your VA Rep or if you live in Texas (or served in Texas) you could contact the Texas Veterans Commission. I have a relative that works for them and I’ll ask for clarification.

Description : State the insulating materials used in motor. Write temperature class and withstand temperature ranges for them. 

Last Answer : The insulating materials used in motor are as belows: 1. Cotton, 2. Silk, or paper, 3. Press board, 4. Resins 5. PVC 6. Cellulose-Fiber, 7. Enameled coating, etc  ... Over 180° Mica, porcelain, ceramics, glass quartz, asbestos, treated glass fiber or treated asbestos. etc.

Description : State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.  

Last Answer : Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v

Description : State different types of holders used in wiring installation.

Last Answer : Following types of holders used in wiring installation: 1. Pendent Holder 2. Batten Holder 3. Angle holder 4. Screwed holder 

Description : Define armature reaction in an alternator. Explain the effect of armature reaction at various P.F. of loads of alternator.

Last Answer : Armature Reaction: The effect of armature flux on main flux is called as armature reaction.  Armature Reaction at Various Power Factors: When armature is loaded, the armature flux modifies ... lagging p.f. For capacitive loads the effect of flux is partly distorting and partly strengthening.

Description : State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.

Last Answer : Modifications are necessary in a dc series motor so that it operates satisfactorily on ac supply. The modifications are as follows:  1) AC series motor is built with a few field turns as ... and grinders 5) High speed vacuum cleaners 6) Sewing machines 7) Food processors 8) Drilling machine 

Description : List different torques in synchronous motor. 

Last Answer : Different Torques in Synchronous Motor: 1) Starting torque 2) Running torque 3) Pull-in torque 4) Pull-out torque

Description : State advantages of short pitch winding over full pitch winding in alternators. 

Last Answer : Advantages of Short Pitch Winding over Full Pitch Winding in Alternators: 1) Short pitching reduces the amount of copper needed for end connection when compared with full pitched coil. 2) They ... reduced, thereby increasing the efficiency. 4) The power quality of generated emf is improved. 

Description : State the losses in secondary distribution system. 

Last Answer : The losses in secondary distribution system: a) Technical losses: 1. Due to poor voltage 2. Due to unbalance load 3. Due poor quality of transformer & its components 4. Due to poor quality ... of induction type of energy meter. 3. Lack of administration. 4. Energy theft 5. Unmetered supply

Description : List the energy conservation technique in induction motor. 

Last Answer : Following are the list of energy conservation techniques in electrical motors: 1) Reduction in iron losses by using low loss silicon steel core material laminated to thinner dimension. 2) Using bigger length ... at light load. 13) By rewinding in induction motor 14) By motor survey

Description : Enlist the luminaries used in factory lighting and lux level required in various areas.

Last Answer : Area Luminaries Lux level Office building Fluorescent tube, LED, CFL 500 lux Testing centre Fluorescent tube, LED, CFL 400 to 500 lux Workshop/work place Halogen ... , LED, CFL, Projector lamp, filament lamp, Halogen Lamp, Metal Halide lamp etc Above 600 Lux

Description : Explain the lighting scheme to be designed for each of the following: i) Special ward in hospitals ii) Dentist’s Cabin 

Last Answer : i) Special ward in hospital: For the patients in the wards, lighting should create a cozy and pleasant atmosphere. Lighting in the wards should be planned in such a way that it meets the specific ... we use such as cements and bonding agents that we use to restore your teeth back to health.

Description : Important Terms in Magnetic Circuit

Last Answer : Important Terms in Magnetic Circuit

Description : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Last Answer : Sinusoidal Steady-State Analysis - Using nodal analysis, find node voltages in the circuit.

Description : Using phasors, determine in the following equations

Last Answer : Using phasors, determine in the following equations

Description : Evaluate the following quantities and express your results in polar form

Last Answer : Evaluate the following quantities and express your results in polar form

Description : Evaluate the following complex numbers and leave your results in polar form

Last Answer : Evaluate the following complex numbers and leave your results in polar form

Description : Calculate these complex numbers and express your results in rectangular form

Last Answer : Calculate these complex numbers and express your results in rectangular form

Description : Express the following functions in cosine form

Last Answer : Express the following functions in cosine form

Description : Source transformation Replace the circuit with voltage source in series with a single resistor

Last Answer : Source transformation Replace the circuit with voltage source in series with a single resistor

Description : Is the power line voltage available in our homes a dc or an ac voltage?

Last Answer : The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.

Description : In a metal conductor, what is a free electron?

Last Answer :  When many atoms are close together in a copper wire, the outermost orbital electron of each copper atom can easily break free from its home or parent atom. These electrons then can migrate easily ... random. Such electrons that can move freely from one atom to the next are called free electrons.

Description : Energy stored in electrostatic field of capacitance formula

Last Answer : Energy stored in electrostatic field of capacitance formula

Description : XL and XC in parallel

Last Answer : https://youtu.be/fCN95EiEWDI

Description : X L and X C in Series

Last Answer : Inductive reactance X L and Capacitive reactance X C in series. Inductive reactance X L of value 60 ohm and Capacitive reactance X C of value 40 ohm are connected in series. 120 volts A C voltage is ... . The current will be 6 ampere. This time current will lead the voltage by 90 degree.

Description : Energy stored in capacitor examples

Last Answer : Energy stored in capacitor examples

Description : How do you find power in a circuit?

Last Answer : Power can be find in a circuit by the means of meters .if an individual want to check for a power in a circuit he/she Calabria the meters on a high voltage range and put the meters Lee in parallel with the circuit he /she will know the amount of power within that circuit .

Description : My personal space and safety has been tested several times the past few months. What can I do to feel more safe?

Last Answer : Carry a gun where people can see it.

Description : In need of safety glasses, but I wear eyeglasses what should I look for?

Last Answer : Easy, prescription safety glasses. Wore them for years before getting lasik. They are exactly like regular glasses but with safety lenses and clip on side shields. You can just remove the side shield when not at work

Description : Sentient automatons create one of their own who is dangerous, do humans have the right to destroy it for their own safety?

Last Answer : I’d wait for aggressive action from the automaton before taking steps to eliminate it. Since it is sentient, maybe our good behavior will positively influence its opinion of humans. It is Friday and I’m feeling optimistic.

Description : How do the BSI test the safety of a product?

Last Answer : The test used depends on the product and it’s use. However they are not testing for safety (ie no sharp edges)so much as to ensure the product is fit for the purpose it’s sold for (ie a cycle helment will withstand a certain defined impact similar to that you may experience falling off a bike).

Description : Idea discussion - How useful are super freezers as an additional powerless safety precaution?

Last Answer : I think it’a a great idea @mattbrowne! It would be costly, but doable in terms of the cost of reactors now.

Description : How much are you willing to trade privacy for safety?

Last Answer : Unwilling. Quick, hide.

Description : Would you risk offending someone for your safety?

Last Answer : Safety is paramount, surely this question is a no brainer? you’d have to be pretty stupid to be worried about hurting someones feelings if your safety was at risk. walshy

Description : Why don't bicyclists follow the rules of the road for other people's safety?

Last Answer : I’ll get my cyclist boyfriend to answer this later.

Description : Give procedure for doing safety audit. Explain records to be examined during safety audit. 

Last Answer : Procedure of safety Auditing : Safety audit is carried out by a team whose members are not involved in the plant or activity being audited. The expertise of the team should be compatible with ... . Maintenance procedure records. 14. House keeping inspection records. 15. Record of previous audits.

Description : Explain objectives of safety audit.  

Last Answer : Objectives of safety audit: Objectives are: 1. To provide the safe working place to every working staff and management. 2. To identify different level of hazards in each working place ... and correct safety impediments which may result in personal injuries, property damage or business interruption.

Description : Give safety measures adopted in fertilizer industry.  

Last Answer : Education and personal hygiene PPE and safety showers Process segregation Heat insulation and careful operation handling Probably handle mechanization and automation Proper ventilation Pipe line and storage tank precaution specially ammonia storage  Catalyst handling and storage

Description : Explain the steps to build a safety strategic plan. 

Last Answer : Steps to build a safety strategic plan: 1. Decide the mission and long range objectives of an organization 2. Collect and analyses the related information of mission, objectives and challenges 3 ... and environmental crisis that can be faced in future. 5. Implement and control the alternative

Description : Explain safety failures which caused Bhopal tragedy. 

Last Answer : Safety failures which caused Bhopal tragedy: 1.During the leakage of methyl Isocynate from the storage tanks of union carbide the water sprayers of the industry was not in working conditions. 2. ... Gas scrubbers were not in working condition. 5. Absence of occupiers in industry at that situation.

Description : Describe the process of safety planning. 

Last Answer : Process of safety planning: The steps of planning are: 1. Identify problems 2. Establish objectives or goals 3. Develop planning premises(eg. Land, labour, capital, market, money, time, production, ... . Select a course of action 7. Formulate derivative (final) plan and sub pland as per need.

Description : Define Safety Integrity Level. (SIL) 

Last Answer : Safety Integrity Level: SIL is defined as a relative level of risk reduction provided by a safety function, or to specify a target level of risk reduction. 

Description : Define safety planning.  

Last Answer : Safety planning: It is the first step of safety management where in a safety manager decides in advance safety objectives, policy, procedure, strategies, rules, programmes, method, budget ... facts and anticipating foreseeable events that may affect safety of plant, people and environment.

Description : Define safety.  

Last Answer : Safety in industry : Industrial safety is defined as policies and protections put in place to ensure plant and factory worker protection from hazards that could cause injury. 

Description : Describe in detail safety organization.

Last Answer : Safety Organization: One of the biggest issues facing employers today is the safety of their employees. Workplace accidents are increasingly common. Organizations have a moral responsibility to ensure the safety and well- ... element of safety. ... 3. Safety Equipment. ... 4. Communication.

Description : Explain the procedure of safety audit.

Last Answer : Procedure of safety Auditing : Safety audit is carried out by a team whose members are not involved in the plant or activity being audited. The expertise of the team should be compatible with ... the management on completion of audit followed by a clear and concise written report within two weeks.

Description : State importance and objectives of plant safety.

Last Answer : Importance & Objectives of plant safety: 1. To increase the rate of production. 2. To reduce the cost of production. 3. To reduce the damage to equipment and machinery. 4. To protect the life & limbs of the workers.