Yuriy Udovichenko

Saved 6/17/18 8:28 AM to Welding

Bases of arc welding (the Russian postscoring) part - 1

Bases of arc welding (the Russian postscoring) part - 1  See details »

 
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  • 00:00: electric arc welding hello to me call Steve Blayl and I
  • 00:32: welder from production and up to repair from repair and before production arc welding most common and universal method with these non-metals is with amway w arc welding protective metals blue electric current from welding source form arc between the main metal and consumable welding electrode electrode on electrode burn the coating which emits gas protective area contact from contact
  • 01:02: with oxygen without burns and melts became and thus metals electrode is transferred to Welding bath when you are learn welding products that give them the first step will be learn well conduct a welding seam before we start burn electrodes we learn about time his equipment start with welding apparatus work
  • 01:32: welding machine just provide large adjustable current flowing to electrode independently from its size and its forms the device gives variable or constant current at this electrode small apparatus gives both kinds of current main feature of the apparatus alternating current simply simple transformer for jv flower for the same money
  • 02:03: this produces 225 amperes on the variable and only 150 for DC current if to consider alternating current then we will see that electrons move roundtrip current direction changes with transfer of current through zero dag is torn therefore Electrons should be coated to be stabilize the hand through current miss so if you use the device alternating current
  • 02:33: you must use electrodes and recesses professional welders use We are constantly used 50 ampere apparatus permanent constant transmission current gives the tray electron one direction polarity determines the direction of travel flow of electrons is not depends on how connected to positive and
  • 03:03: negative adhesive on welding machine they enable select polarity reverse polarity plus at the electrode minus the ground terminal it is known that the current is coming from negative and positive contacts therefore electrons move from metal on electronically this leads the film
  • 03:34: heating end electrode for conventional welding are used plus at the electrode minus the electrolysis direct polarity minus electrode plus on the ground terminal he comes from the electrode to metal cold electrode metal hot it used in special
  • 04:04: electrodes for speedy svarkelis addition gave when you start cook most likely it will be an apparatus which faces you are suitable for fundamental rights you courage to them weld it remember that different shafts differently there are two absolutely identical machines so when training try use only for how Napas it is possible and so are also important
  • 04:35: insulated copper wires There are 4 sizes 3 2 and 1 10 the bigger the room the vich and sections size matters in the case when you know which electrode do you use Need and for how long with you will work the table shows the main face values ​​at the end main wire is put quick-release clamp to he joins 4 meter wire sip-4
  • 05:05: keep it called tile it more and the song is easier work it electrode holder 200 there is a larger 250 ampere or 300 amperes but they are used for thick electrodes and large currents for conventional reduction of 200 amperes more conveniently I call him pliers there is another kind holder in it an electrode is inserted and turns handle if needed electrode for
  • 05:35: at different angles you can simply run it off grounds also need earth terminal also used with quick-detachable crocodile clip brightness other very The high you need light avito.ru in order to see melted and for in order to protect eyes from a burn they come with numbers from 8 to 14 months a lighter filter people differently
  • 06:05: sensitive to light filter 8 c2 light in production recommended ten c4 I'm using the top nine center filter same to protect the eyes but you should see clearly welding pool if you are using thick electrodes and large currents then you should apply filters with large number of filters enough cup to protect
  • 06:36: filters from sparks or scratches use protective plastic windows front and rear with assembling a mask use seal and clip after installation filter look at shine make sure not gaps when you start cook, check again if there is illumination you are guaranteed get burned retina bunny replace protective glass when
  • 07:06: but for a couple of power cleanliness was scratched glass is very important for a clear welding vision baths the last thing to us need welding electrode let's look at electrodes of general values ​​of carbon for carbon steel most commonly used this is 6010 and 6011 e 6013 and 7018 numbers are written in electrodes these numbers designate them characteristics
  • 07:36: so let's look at the e60 10th means an electrode for manual arc welding 60 this means effort 42 kg break millimeters in depending on welding conditions but it will be approximately such 70 give an effort breaks of 49 kilograms a millimeter so first two digits denote strength to the gap
  • 08:06: It is break the seam part 3 of the figure spatial position number 1 means that the bath will harden fast enough the electrode can used in any position in lower vertical even ceiling number 2 and 24 means that the bath liquid can be used only in the lower position or for position which More or less
  • 08:37: horizontality two last digits of the number together for example ten means plaster material he makes it possible welding process the coating creates shielding gas and cleans the bath when this displaces air oxygen holding it about connecting to melted metal without giving form 40 a also stabilize teeth and supports purity
  • 09:08: molten metal when the metal cools down Slag is formed provides additional protection of metal from air is the numbers electrodes for general applications you can find others who give similar result in mainly electrodes form two groups it's fast congealing thin coating and filling that is, qualitatively and rapidly cooling Electrodes thin bright arc coating gives a deep penetration little slag do
  • 09:38: Welding bath clear visible welding the bath stiffens relatively fast come with this wavy shock and filling quality electrodes such as 6013 and 7018 e70 24 not bright arc is a lot of slag shallow penetration thick mask gives more liquid weld pool and smooth seam in the end how to use electrodes and with
  • 10:08: change essays constantly the hot arc of this electrode can used for burning paint it is convenient for repair makes metal clean and also this electron first pass welding of the root of the seam he deeply penetrates floods the gap and gives better connections 7018 for filling
  • 10:38: just perfect 6013 for productive welding of sheet metal to the straight line electrode polarity also suitable for change and reverse polarity is electrodes of general appointments mp3 oven at 12 in them is additives for arc stabilization they are the simplest in application and give smooth seam 7018 or just low hydrogen content and metal powder
  • 11:08: together for the reverse polarity, although they can alternating current plus gives the most quality seam used for heavy load found used for welding quality carbon steels such as a 145 low content of hydrogen prevents round during expansion and compression of metal metal powder gives
  • 11:38: great transfer metal in the big coefficient of surfacing more accurate faster welding 7018 gives a pure shock but requires a clean metal and good training of connection 7024 widely was used in production up to emergence semiautomatic machines a lot The flux gives a very smooth seam this the electrode requires pure metal and greater welding current 7024 works for
  • 12:09: reverse polarity and to change 2 means use only in lower position 6010 6011 6013 and 7018 conventional electrode and are available everywhere other available electrodes are more strong with different mainly for a special applications each type electrodes has its own
  • 12:39: features but there are some basic principles for We begin welding with rapidly cooling down because less slag is the best view of the zvarych forces she quickly cooling 6010 6011 or similar for them is used the same techniques 60 really reverse polarity freezes faster 6011 to reverse or
  • 13:09: change them a bit easier to use because because of additives in the give more stable arc start on the embed Welding Try describe what is needed see after cherkani electrodes for ignition end of electrode is in three millimeters from surfaces this creates a gap for truncheon there is a bright light when do not brew look at the light
  • 13:39: look further smoking and p focus on molten in the bath behind the electrode welding this practice is it is easy step by step first look attention to the fact that all ready for welding in any moment like only the electrode to death of metal another will appear to you should be convenient the electrode does not burn at once so relax
  • 14:09: take the holder with both hands the sky shave on the table so steadily how much is it perhaps when all ready to lower the flap or adjust the clamp mask so that he quiet of the head He lowered himself rockin an arc is necessary since lights match chips electrode for metal and see the end on the beginning of the seam at cherkanie will begin melt coating
  • 14:39: which cleans you to avoid traces yelling at direction to will cook usually I take the holder so that the lever is under thumb to extract or trot take it with your left hand, press lever and remove electrode if the electrode stuck most likely a coating on the tip was damaged Click to burn end of electrode up to how to start fill the tub when
  • 15:09: the arc caught fire start to form a bath need some time to warm up base metal by it takes two three small turns later in welding time base metal heated and bath diverges first small bath make sure that bath was enough wide and did not change shape during welding hold the electrode over metal is called arc interval
  • 15:39: monitor this gap first and probably the most important what you need to learn during the promotion seam electrode therefore it is necessary to let all time you need hold constant gap between the end electrode and the main metal if the gap is too little then there is no time for warming up the main metal seam will be convex with
  • 16:09: fusion at the edges if the gap is too big arc start a will be a bad right and difficult to manage laying afloat you are a permanent metal clearance of normal the first step welding control bath and formation normal is yours with a good cook than the better you manage long arc the better you will be cook when the arc passes through the gap
  • 16:40: she swims the main metal and forms welding you have a she also suffers metals electrode you this seam electrode 6010 which quickly moved the bathroom line is below surfaces base metal intensive arc 6010 and 6011 penetrates deeply in the base metal pushes into one back and forms a seam when you cook look around what went into must
  • 17:10: be at the level of metal for seam formation usually used for circular or zigzag with circular motion moving in see side there across on the bridge border important words then to another side and just distribute in a bath round zigzag hand movement in side does bridge-like seam look with one the parties at the top
  • 17:40: from the other side every time you change direction It should be remembered that molten bath follows heat when you move in bathtub across filling metal with electrode moves behind if metal around you are not enough leave undercutting prune an empty place groove on the edge seam below tossed you can avoid
  • 18:11: this monitoring external borders watching the bathroom and successful power system arc power end of the electrode can be used for manipulation and bathroom tilting the electrode we as though pushing a bath a does not pull as a whole with what vertically we we hold the electrode less convex will be I walked the more we it is inclined so
  • 18:41: there will be a seam the electrode is vertically all heat concentrates under electrode power others press on the bath down and this leads deep penetration and disseminates bath around if tilt the electrode from villages arc directed back and the seam begins rise emerge if the inclination is too the arc is large press in the direction
  • 19:11: seam making bath bad managed are situations when necessary boil a flat seam but there are times when you need to repel a bath back so different angles of inclination electrode in the beginning we start with angle between 45 and 90 degrees it is more convenient than welding the bath is clearly visible and normally cooked electrode diameter is determined rod diameter the overall size is 3 9
  • 19:41: millimeter 32 millimeters and 2 and 8 millimeter in the main welding tables the diameter is given electrode thickness metal and the recommended current value for the maximum productivity often without taking into account Welder capabilities I and specifics situation can apply an electrode smaller diameter for but better control welding will take same time
  • 20:11: conventional 6010 electrode most often used diameter manufacturers recommend current settings from 75 to 100 to 30 amps this means an electrode will work approximately in the range 55a all accurate current settings can differ and depend of the thickness of the metal position of the welder and his qualifications welding task process of warming up base metal up to melting
  • 20:41: forming welding bath with if only main metal loot will be and heating and welding the bath will run for electrode if the same only a lot basic metal will be too hot arc will penetrate into the depths and will repel metal back when the current normal for you spreads and external edges are thin we can we can expand move her
  • 21:13: electrode in depending on welding situation current settings can change thick metal dissipates heat is therefore needed there will be more current thin metal melts quickly so you need less fine-tuning current current depends on bath behavior we start with installations recommended manufacturer and not Do not be afraid to increase the current or reduce it svarga depends on
  • 21:44: temperatures base metal so we can not talk about current without speed welding move or labor is faster less heat comes in base metal so he will colder if we move slower than heat more basic metal will be hot if engine and labor too fast metal will not be will be welded at the top without penetration
  • 22:14: if you move slow to metal too much heated and bath begins spread out and it becomes difficult managed when speed displacement corresponds to tofu the bath spreads but remains manageable edges thin and seam of the same thickness when you learn control the electrode you can put slightly more doses increase a speed Welding Greater Current provides the best
  • 22:45: penetration and more smooth seam in the end but more difficult control the bath at the end of the seam it is necessary to weld a little more metal in front of how to remove electrode to avoid craters from shine of the lower layers metal do one two circle and draw back seam different electrodes look like differently it's the basics drop the electrodes for other
  • 23:15: dilute in a bath for of the required width so that the seam is the same width hold down constant arc gap and the doses should be is sufficient to so that the bath spread expand and using pressure arc watch edges and formed seam add deposited metal before stopping but briefly on basis for 6010 in lower position
  • 23:46: use circular use them for obtaining a seam look at the bathtub they arc hold the size bathtubs for smooth zigzag weld movement gives walked in front of borders to the bath was completely moving bath forward and backward thanks to the powerful other small
  • 24:17: quantity of slag we we can use swinging or moving by steps for these movements well fits quickly cooling electrodes and electrode shrinks back then that the arc exits from bathroom and then molten metal pushes back wavelike movement be sure to look on the sides and on the seam when pushing the tub this type of electrode can be used
  • 24:48: for deep penetration immersing the tip in direct input time electrode and filling gap in thin we do not need metal deep failure we we can melt then a long arc cool and melt again thinner the faster the metal It is necessary to move this can be used for filling gaps poorly fitted connections move the electrodes club gap and then assign to cool your fill the seam and
  • 25:18: cool again move in steps very important but used to fill the second the passage it was welding in the lower position for vertical and 6010 you can weld bottom to top and top down from top to bottom simpler but less penetration because that heat rises you leave from heated metal therefore it is necessary use a bit
  • 25:48: more dancing watch the boundaries seam use circular zigzag or step -by- step movements hold the electrode tips up to the pressure of the arc pushed in the bath up when circular motions clearly hold gap and expand bath around need stay ahead of baths if the bath wants fall down try move faster and
  • 26:18: put a little higher welding current if you are brewing from below up then move in hot area therefore the current must to be less than inclination of the electrode make sure that arc pressure kept arc penetrating into base metal does undercuts around so do circular motions for You do not have look at the seam under electrode if basic metal will be
  • 26:48: too hot bath can fall out or you live hole in metal pick up docks speed motion to you could hold the bath how does it appear horizontal seam goes across vertical plane need tilt the electrode to push into the bath up hold him perpendicular to the seam or slightly on the seam if we hold the electrode too inclined the pressure of the arc is something you made using circular motions and
  • 27:19: constant arc gap expand the bath every time you let the electrode molten metal bath follows cover push the bath up and look at both sides of the seam the bath went down try to move faster doing basic metal is more hungry can do overlapping direct move up and down overlapping it
  • 27:50: welding term he Slightly awkward it is necessary to find more convenient position so you can steadily hold welding electrode there are several settings therefore adjust it as will be convenient for you believe you or not but The weld pool is not will fall out if you do not squeeze it out pressure home liquid metal wants stay near hot place it likes jazz
  • 28:20: so keep it electrode vertically or slightly tilt and in the direction movements along the seam try disk movements are also as you brewed in the lower I will put will tides edge so protect yourself with clothes and good gloves cover your ears with a hat otherwise burns there will be few of you distract good seam 6010 and 6011 and will not give a smooth
  • 28:50: the final shovel but not will give a deep penetration is good welded during repair 6013 is used for welding sheets on direct molarity of dns electrode keeps perpendicularly metal arc short and move fast as far as it's possible makes the seam narrow as can not electrodes 6013 apply for conventional objectives on the reverse
  • 29:20: polarity and alternating current it's good electrodes for small children welding need remember that 6013 thicker layer slag is our whole slag even cover welding pool is make a bath more fluid and gives more smooth seam in the end usually 6012 are Diameters 332 1 8 and 532 1 8 32 millimeters
  • 29:51: most widely basic currents given in table 130 amperes at break and 115 amperes for constantly and went to see the difference small but smaller currents bath stretches behind the electrode must be actively engines trot hand heavy slag pours Yeah if the current is great words to the mobile
  • 30:22: ashlag very liquid bath lengthens when the current normal the bath spreads cooled and easy controlled electrode in the lower position you you can move either either directly or from side to the side keep electrode between 45 and 90 degrees to form a click to light arc and then hold short arc holding
  • 30:52: electrode over metal surface with observing the slag on the top of the seam can be easy to get information seam look on the sides so that the seam was straight and move a bath from the side in aside vertical seams 60 13 January from top to bottom you
  • 31:22: will cook and leave heat therefore try adding current 5-10 m 5 tilt the electrode up to pressure friend helped hold the bath and keep constant and The sounds from the expand in bath small side movements look at the external edges molten It's important if you do not you can resist ahead of the bath and she drops move faster or increase
  • 31:52: current of 5 to 10 amperes for Welding thicker metal 6013 can make a covenant Reduce current by 5 or 10 amperes from recommended Use motion from side to side move fast enough to keep in fall bath see that by there were no undercuts when cook hold the electrode upside down to maintain a bath hold the electrode perpendicular to the seam
  • 32:23: that is, horizontally or slightly found hold a short arc and constant speed to seam there was a smooth slag will fall to bottom of the bath and therefore look at the top part of the bath move fast to avoid too thick seam when are you learning to cook horizontally try not to
  • 32:54: send too do a lot of metal seam small if need more seam make the second pass over the first welding in the ceiling position 6013 as well as other electrode very inconvenient and hold the electrode precise up arc making a cant make small circular motions arc heat goes straight up where are you brewing so hold
  • 33:26: short arc and constant speed movement and you will cook good ceiling 6013 favorite electrode for many household workshops it is easy to ignite and keep the arc and can be done very beautiful seam 7018 applies for very high-quality and excellent seams this electrode for responsible and very important to work for seams bearing large these loads
  • 33:57: Electrodes give a lot slag to protect the metal from contact with this one Slag features 7018 of other electrodes for choice of cooling electrodes 6010 and 6011 weld pool at them very clearly seen in 6013 slag covers welding bath for metal remains in water cools almost the same as in previous electrodes for 7018
  • 34:27: full bath covered with slag filling metal cools and falls down and slag remains upstairs remember what you are see on the surface it is slag and you need remember that metal does raise 7018 is quite simple even when the metal cools down down look through the passage from above the electrode to understand how it turns out that 7018 more sensitive
  • 34:59: length of arc and movements in check convenient for you Are you stable You stand looking drop the electrode to make the arc catch fire if you do not have it turns out to light arc this is because the slag covers the tip hit the electrode to break the slag and then draw electronic again when the electrode caught fire form Welding bath except time for education vans you It is necessary to give time to gas is cooked
  • 35:30: protective of us baths if you move too fast Protective gas will not be cover shock and wagons are formed they become visible and found a foot mountain is also formed on rusty decorated and contaminated parts similarly to oil 7018 requires pure metal after forming a bath expand and in side keeping short arc
  • 36:00: constant length usually you can gently put electrode coating on metal with soft arc and slag covering bath so you hold the electrode from sticking or detachment of an electron from metal do not give the electrode cool down and keep arc of the main bathroom the dimensions are 332 1 8 or 532 and for the powder metal in coating these electrodes are carried more metals
  • 36:31: 7018 requires little more current and its value can vary up and down depending on thickness of metal and position of welding and your flip to the stronger the slag covers the bathtub the more you will have act focusing on behavior in the bathroom if the current is too small for these conditions in bathroom does not want spread then turning on the border seam electrode can cling
  • 37:02: or move away if the current is large in baths active and liquid metal can splash through the edges causing sprinkling when current is correct converged stiffens for electrode site edge flat bath is easy is expanding movement of the hand again if you chose the right one arc length movement of the electrode and the welding speed is 7018 you will find more light and high-quality
  • 37:32: choosing a larger current tilt angle the electrode is controlled filling the seam and behavior if holders are cool vertically slide slag will be around welding pool if electrode tilt the flag is too strong the coating will burn and he can stick when the angle between 45 and 90 degrees then slag moves back to where he should be together
  • 38:02: with molten metal cook bottom very just remember relax comfortably settle down and hold the holder with both hands hold a short arc not more than a diameter electrode with coating and constant speed Move, see on the outside make sure that it is liquid and smooth see for electrodes to understand what a seam is formed in lower position even with an electrode 532
  • 38:32: very simple cope if welding machine gives enough current and enough thickness metal disperse and smoothly for fabrication horizontal that if you just study use electrode 30 2 bathrooms smaller size slightly easier to manage the usual I cook on the left right because so the bath is better visible for 7018 on the horizon I I'll cook right
  • 39:02: left you can cook in any directions that convenient for you guide the electrode up and slightly backwards there was a bath liquid so go ahead that there was no flow molten slag will flow down so look hold it upward smooth seam and without undercuts if the seam is trying sit down try it increase a speed displacement if slowed down to
  • 39:32: more metal will be melted fast movement will protect base metal from overheating which causes failure metal and subsidence vertical seam 7018 must be led from below top endure from above down to the point where you start you can move directly up or from the side in you can even slightly arcuate movements move relatively fast
  • 40:02: as soon as the bath flows from this region go to another side and up the current must fit welding speed especially when welding ceiling for retention constant short others to an electrode not burned Yaniv poked in varna at more in you can work with more important start the insoles labor 332 is not Stop and do not overheat
  • 40:32: base metal is main reason loss of bath ceiling joint electrode 7018 is simply it is very warm right where you need to go use the same top as in the bottom position, insert electrode perpendicular or a bit on the seam you can move directly or slightly from side to side to melt more metal and you can keep
  • 41:02: metal overhead be careful and learn when Learn how to manage bathroom metal will be stay on although it came melted longer slag will be I usually drip I use leather jacket when I cook Ceiling seam to you she too can would need 7018 requires a large quantities training but elapsed time stands behind me told the basics how
  • 41:32: and what to do and what for watch make a good welding seam when you will cook collected all the time While the electrode is burning and focus on welding bath do everything to the bath behaved so as you should not nothing mysterious arc welding to you should be made simply work and look at the seam like he does is formed when finished inspect every done walking if something is not
  • 42:02: get done again if not at all is obtained try something other beautiful smooth seam will practitioner keep an eye on the edges seams were tied to base metal if the edges are not tied you are driving too fast or dip the electrode directly may be too small swallows somewhere slow motion overheats the main metal long arc a torn seam is obtained and too much
  • 42:32: splashing everyone cooks you so if your you have opportunity try to observe for welders and produce own strength try harder practice with different electrodes of different dimensions and remember the most important thing quality seam