Related Manuals for Soham Impex SI-TIG-300
Summary of Contents for Soham Impex SI-TIG-300
- Page 1 AC/DC GTAW WELDING MACHINE MANUAL Vavdi Survey no. 28, Shivam Industrial Area, Street No.3 Plot No.7, Near Sunny Raj Metal, Rajkot - 360004, Gujarat (India). Email us : sohamlathe@gmail.com...
- Page 2 OPERATING MANUAL AC/DC GTAW WELDING MACHINE MODEL : SI -TIG - 300 Works :- Soham Impex, Vavadi survey no.28, Plot no.7, Near Sunny Raj Metal, Rajkot City, Gujarat – 360004...
-
Page 3: Table Of Contents
AC/DC GTAW WELDING MACHINE CONTENTS INTRODUCTION OF TIG WELDING MACHINE ..................1 SAFETY INSTRUCTIONS ......................... 3 INSTALLATION & COMMISSIONING OF AC/DC TIG WELDING MACHINE ..........8 OPERATING INSTRUCTION ........................13 COMPONENT DETAILS OF WELDING PLANT ..................15 WELDING PARAMETER SELECTION AND SETTING [FRONT PANEL] ..........16 MAINTENANCE ............................ -
Page 4: Introduction Of Tig Welding Machine
Introduction of GTAW welding machine This series of power sources apply IGBT soft switch inverter technology. Its internal control system applies digital signal processor which ensures quick response to any change during the welding process so as to achieve precise control of welding process and ensure optimal welding results. Power source features This series of power sources are microprocessor controlled and apply MCU + DSP control technology to improve the control precision. - Page 5 Output characteristics Output characteristics Duty cycle Duty cycle is percentage of 10 minutes that a machine can weld at rated load without overheating. If overheats, thermostat(s) will open, output stops. Wait for fifteen minutes for the machine to cool down. Reduce amperage or duty cycle before welding.
-
Page 6: Safety Instructions
Safety Instructions “Danger” indicates an imminently hazardous situation which, if Danger! not avoided, will result in death or serious injury. “Warning!” indicates a possible hazardous situation which, if not Warning! avoided, could result in death or serious injury. The possible hazards are explained in the text. - Page 7 and body protection while performs the welding. • Insulate yourself from work and ground using dry insulating protection which is large enough to prevent you full area of physical contact with the work or ground. • Connect the primary input cable according to rules. Disconnect input power or stop machine before installing or maintenance.
- Page 8 protect your eyes and skin from arc rays and sparks when welding or watching. • Use protective screens or barriers to protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or material.
- Page 9 • Keep a fire extinguisher readily available. • Empty containers, tanks, drums, or pipes which have combustibles before perform welding. • Apply correct fuses or circuit breakers. Do not Remove stick electrode from electrode holder or cut off welding wire at contact tip when not in use.
- Page 10 • Noise from some processes or equipment can damage hearing. Noise can • Remember wear approved ear protection to protect ears if noise damage hearing level is high. • Stay away from moving parts such as fans. Moving parts • Stay away from pinch points such as drive rolls. can injure •...
-
Page 11: Installation & Commissioning Of Ac/Dc Tig Welding Machine
INSTALLATION AND COMMISSIONING OF AC/DC GTAW WELDING MACHINE Warning! Operating the equipment incorrectly can cause serious injury and damage. Do not use the functions described here until you have read and completely understood ―safety rules‖. Utilization for intended purpose only The power source may only be used for DC TIG , AC TIG , MMA , PULSE DC TIG , PULSE AC TIG welding . - Page 12 Welding cables instruction When welding, please pay attention to the followings: a. The welding cables should be kept as short as possible; b. If extended cable is used, please do as shown in Fig. 3-4-1. Wrong Coil the excess ground cable and welding cable in same direction respectively.
- Page 13 Commissioning of AC/DC GTAW machine Back panel machine connections POWER SOURCE On/Off Switch Mains input cable : Fit required plug as per your electrical installation Gas Inlet : Input connector Connect input gas hose ensuring connection is tight . Gas hose from Flow meter is connected here.
- Page 14 Front panel machine connections A:- Connections for TIG (GTAW) Welding 1. Negative power connector - Connect Tig Torch connector to power connector by inserting and twisting until tight ENSURE TIG TORCH IS FITTED TO NEGATIVE CONNECTOR OTHERWISE YOU WILL EXPERIENCE TUNGSTEN BURNBACK 2.
- Page 15 B:- Connections for STICK MMA (SMAW) Welding Negative power connector - Connect the earth lead to by inserting and twisting until tight and the earth clamp to work/bench Positive power connector +Connect the electrode holder by inserting and twisting until tight All other front panel connectors are not used for MMA welding ●...
-
Page 16: Operating Instruction
OPERATING INSTRUCTION Welding in TIG mode – No Pulse – No remote foot pedal 1. Connect the Tig Torch to machine, connect earth lead to machine & work piece. 2. Set to Tig mode pulse off 3. Select 2 or 4 way torch operation 4. - Page 17 Note: When welding with remote foot pedal Upon pressing of foot pedal welding arc will start, if you find it hard to start arc push pedal down a bit further to aid starting. Press pedal fully to start weld, upon weld pool formation you can release the pedal to decrease amperage to sustain perfect weld pool and increase again as required to sustain weld characteristics.
-
Page 18: Component Details Of Welding Plant
COMPONENT DETAILS OF WELDING PLANT Welding Plant components AC/DC GTAW Welding Plant Includes Power source with Inbuilt Water cooling unit TIG Welding torch Argon gas regulator with flow meter and gas hose Welding cable with Electrode Holder Ground Earthling cable with Clamp Standard tool kit for operating plant ... -
Page 19: Welding Parameter Selection And Setting [Front Panel]
WELDING PARAMETER SELECTION AND SETTING [ FRONT PANEL] 1. Memory store function : There are memory store programs to enable you to select required parameters for job in hand and then store to select channel. Press memory button until required program you wish to store is showing in LED Then enter parameters as required, now press and hold save button for 3 seconds and release, the green save LED will now light for about 2 seconds and then go out. - Page 20 B. Start Amperage : This allows you to set the initial start current from 5A DC and 10A AC. In 4T mode when trigger is pressed and held you will remain at start amps, when you let go machine will then go to main set amps.
- Page 21 K. End Amperage This allows you to set the end current from 5A DC and 10A AC. In 4T mode when trigger is pressed and held the second time you will remain at end amps, when you let go machine will then stop welding.
- Page 22 9. 2T/4T, remote foot pedal and torch amp control selector: 2/4 Step trigger mode switch – Tig welding can either be done in 2 or 4 step mode. When the trigger mode is in the 2 step position the following sequence will occur Press and hold the Tig torch switch to start sequence.
- Page 23 Press and hold the Tig torch switch to start sequence. The machine will open gas valve to start flow of shield gas, after preset gas pre-flow time to flow time to purge air from torch hose the welding output of machine will be turned on and the arc will be started at start (min) current This condition can be maintained as long as required.
-
Page 24: Maintenance
MAINTENANCE CARE AND MAINTENANCE Before open the machine Warning! An electric shock can be fatal. Before doing any work on the machine: -Switch it off and unplug it from the mains -Put up a clearly legible and easy-to-understand warning sign to stop anybody in advertently switching it on again -Check to make sure the electrically charged components (e.g. - Page 25 Routine and periodic maintenance WARNING! ELECTRIC SHOCK CAN KILL Turn the input power OFF at the mains switch & fuse box before working on this equipment. Have a qualified electrician install & service this equipment. Allow machine to sit for 5 minutes minimum to allow the power capacitors to discharge before working inside this equipment.
- Page 26 • Machine keeps overheating - Warning light is lit on machine Check if fan is running – if not contact R-Tech for repair Check the cooling vents for obstruction, blow out machine with clean dry low pressure air supply. Check for adequate ventilation around machine •...
-
Page 27: Trouble Shooting
MMA Stick welding problems • Stick electrode „blasts off‟ when arc is struck Welding current set to high, reduce amperage or use thicker electrode Contaminated electrodes or material • Electrode sticks in weld puddle Welding current is set too low Arc is too short, keep electrode further away from work •... - Page 28 • Porosity in weld – No / low gas at torch tip Check gas supply from gas bottle Check flow rate on regulator Check gas hose for restrictions Check for draughts in local area, open doors etc Replace tig torch – may have gas restriction •...
- Page 29 • Poor penetration Travel speed too fast Too much welding current, reduce welding amperage • Porosity in weld Electrodes are damp Arc too long, get electrode closer to work Warning! An electric shock can be fatal. Before doing any work on the machine: -Switch it off and unplug it from the mains -Put up a clearly legible and easy-to-understand warning sign to stop anybody inadvertently switching it on again...
- Page 30 • Check whether the switch is ON • Check the fuse and breaker • Check whether the ground cable is connected • Check whether shielding gas is provided • Dirty welding face, Check and set shielding gas flow • poor welding seam Check whether shielding gas is correct •...
-
Page 31: Tig Welding Torch Details
TIG WELDING TORCH DETAILS [28]... - Page 32 [29]...
-
Page 33: Argon Flowmeter Regulator Details
ARGON FLOWMETER REGULATOR DETAILS [30]... - Page 34 [31]...
-
Page 35: Water Cooling Unit Details
WATER COOLING UNIT DETAILS INTRODUCTION Before using the equipment please read the instructions in this manual carefully. To obtain the optimum performance and product life you must carefully follow the instructions for use and maintenance detailed in this manual. Any maintenance or repairs should be carried out by a suitably qualified person. - Page 36 Some of the key features of the unit are: Corrosion free No priming required Quick fill and drain Low and easy maintenance INSTALLATION The Equipment is Inbuilt with Power source. The equipment is designed for use in industrial environments The equipment is powered from a suitable power socket.
-
Page 37: Technical Specification Of Machine
TECHNICAL SPECIFICATION OF MACHINE AC/DC GTAW WELDING MACHINE AC/DC GTAW WELDING SET COMPLETE 600 AMPS. (with water cooled torch 300 A, Argon regulator, Gas hose, with Water Cooling Unit and Power Source) TYPE IGBT Transformer Based Control : Digital signal microprocessor. Input supply : Three Phase Frequency... - Page 38 Technical Features H.F. ignition Inbuilt. Type of metal that can be welded : M. S. , S.S., Aluminum , Titanium, Bronze etc. Full Pulsed welding function, slope up, slope down. Function selection switch for DC TIG, Pulsed TIG, AC TIG , PULSE AC TIG Welding current Pre set with Digital .
- Page 39 Current Control Unit : GTAW/TIG welding involves a high level of control compared to most welding processes. The operator must accurately manipulate the torch with one hand while carefully adding filler wire with the other. All of this must be done while simultaneously controlling the heat input.
-
Page 40: Basic Welding Technique
BASIC WELDING TECHNIQUE Note! This section being general welding technique guide is for reference only. Specific functions of your machine please refer to previous chapters. TIG welding technique Heat Input The DC power source uses what is known as DC (direct current) in which the main electrical component known as electrons flow in only one direction from the negative pole (terminal) to the positive pole (terminal). - Page 41 Low current High current The intensity of the arc is proportional to the current that flows from the tungsten. The welder regulates the welding current to adjust the power of the arc. Typically thin material requires a less powerful arc with less heat to melt the material so less current (amps) is required, thicker material requires a more powerful arc with more heat so more current (amps) are necessary to melt the material.
- Page 42 TIG Welding Fusion Technique TIG Arc Manual TIG welding is often considered the most difficult of all the welding processes. Because the welder must maintain a short arc length, great care and skill are required to prevent contact between the electrode and the workpiece.
- Page 43 TIG Welding with Filler Wire Technique Add TIG Filler Wire It is necessary in many situations with TIG welding to add a filler wire into the weld pool to build up weld reinforcement and create a strong weld. Once the arc is started the torch tungsten is held in place until a weld pool is created, a circular movement of the tungsten will assist is creating a weld pool of the desired size.
- Page 44 Tungsten Electrodes Tungsten is a rare metallic element used for manufacturing TIG welding electrodes. The TIG process relies on tungsten‘s hardness and high-temperature resistance to carry the welding current to the arc. Tungsten has the highest melting point of any metal, 3,410 degrees Celsius. Tungsten electrodes are non consumable and come in a variety of sizes, they are made from pure tungsten or an alloy of tungsten and other rare earth elements.
- Page 45 SMAW (Stick) welding technique One of the most common types of arc welding is manual metal arc welding (MMA) or stick welding. An electric current is used to strike an arc between the base material and a consumable electrode rod or ‗stick‘.
- Page 46 The core wire melts and is deposited into the welding pool. The covering on a shielded metal arc welding electrode is called Flux. The flux on the electrode performs many different functions. These include: ● producing a protective gas around the weld area ●...
- Page 47 Arc Length To strike the arc, the electrode should be gently scraped on the work until the arc is established. There is a simple rule for the proper arc length; it should be the shortest arc that gives a good surface to the weld.
Need help?
Do you have a question about the SI-TIG-300 and is the answer not in the manual?
Questions and answers