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INSTALLATION AND ADJUSTMENT

10

3.3.2 TIG

Steps of starting arc

Striking arc of TIG operation

：

when tungsten electrode touches the workpiece

，

the short-circuit

current is only 28A . After generating arc, current can rise to the pre set welding current.If the
tungsten electrode touches the workpiece when welding, the current will drop to 5A within 2s,

which can reduce the tungsten spoilage, prolong the using life of the tungsten electrode

，

and

prevent tungsten clipping.

●

With TIG operation, the shielded gas is inputted to the welding

gun directly, and the method of lifting arc is lifting the electrode..

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Содержание Arcostick MMA 160 Minespec

Страница 1: ......

Страница 2: ...ou with dependable service and our extensive range of first class products Our range can be viewed at https arcoweld com au For support please contact your Authorised distributor or Arcoweld directly T 61 8 9248 3188 F 61 8 9248 3166 93 Mulgul Road MALAGA WA 6090 PO Box 3087 MALAGA DC WA 6945 Email info arcoweld com au Website www alloysteel net ...

Страница 3: ...LDING POLARITY CONNECTION WAY 9 3 3 1 MMA 9 3 3 2 TIG 10 4 OPERATION CONTROL AND CONNECTORS 11 4 1 LAYOUT FOR FRONT REAR PANEL 11 4 3 WELDING OPERATION 13 4 3 1 Striking the arc 13 4 3 2 Manipulation of electrode 14 4 4 WELDING PARAMETERS 14 4 4 1 Joint form in MMA 14 4 4 2 Electrode selection 14 4 5 ARC WELDING DEFECT AND PREVENTION METHOD 15 4 6 OPERATION ENVIRONMENT 16 4 7 OPERATION NOTICES 16 ...

Страница 4: ... electrical parts Wear dry hole free gloves and clothes to insulate yourself Insulate yourself from work and ground using dry insulation Make certain the insulation is large enough to cover your full area of physical contact with work and ground Take care when using the equipment in restricted spaces and wet circumstances Never close the machine power before installation and adjustment Ensure you ...

Страница 5: ...s away from the breathing zone When welding with electrodes which require special ventilation such as stainless or hard facing or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes keep exposure as low as possible and below Threshold Limit Values using local exhaust or mechanical ventilation In confined spaces or in some circumstances outdoors a respirato...

Страница 6: ...en welding or observing open arc welding Use suitable clothing made from durable flame resistant material to protect your skin and that of your helpers from the arc rays 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 metal ...

Страница 7: ...and openings to adjacent areas Avoid welding near hydraulic lines Have a fire extinguisher readily available Where compressed gases are to be used at the job site special precautions should be used to prevent hazardous situation When not welding make certain no part of the electrode circuit is touching the work or ground Accidental contact can cause overheating and create a fire hazard Do not heat...

Страница 8: ...er or any other electrically hot parts to touch a cylinder Keep your head and face away from the cylinder valve outlet when opening the cylinder valve Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use 1 3 The knowledge of Electric and Magnetic Fields Electric current flowing through any conductor causes localized Electric and Mag...

Страница 9: ...matic protection functions for under voltage over current overheat etc Should a problem occur an alarm on the front panel will light up and at the same time the output current will be cut off It can self protect and prolong the using life and greatly improved the reliability and practicability of the welders Arcoweld MMA welders can also realize TIG operation In operation if the electrode touches ...

Страница 10: ...um frequency rectifier fast recovery diodes and is outputted by inductance filtering The circuit adopts current feedback control technology to insure current output stably Meanwhile the welding current parameter can be adjusted continuously and steplessly to meet with the requirements of welding craft 2 3 Volt Amperage Characteristic Arcoweld MMA welders have excellent volt amperage characteristic...

Страница 11: ...4 22 3 Rated input power KW 2 2 3 8 3 1 4 7 Power factor 0 99 0 99 Welding current range A 10 125 10 160 Max no load voltage V 55 80 Efficiency 80 80 Duty cycle 40 10 minutes see 3 2 35 125A 60 95A 100 100A 60 125A 100 90A 40 160A 60 125A 100 90A Protection class IP23 Insulation class F Dimensions of Machine L W H mm 365 140 230 Weight Kg 8 Note The above parameters are subject to change with the ...

Страница 12: ...welder is overheating the IGBT over heat protection unit inside will output an instruction to cut output welding current and light up the over heat pilot lamp on the front panel At this time the machine should be relaxed for 15 minutes to cool the fan When operating the machine again the welding output current or the duty cycle should be reduced 3 3 Welding polarity connection 3 3 1 MMA Choosing t...

Страница 13: ...c current can rise to the pre set welding current If the tungsten electrode touches the workpiece when welding the current will drop to 5A within 2s which can reduce the tungsten spoilage prolong the using life of the tungsten electrode and prevent tungsten clipping With TIG operation the shielded gas is inputted to the welding gun directly and the method of lifting arc is lifting the electrode ...

Страница 14: ...NECTORS MMA160MINESPECOPERATION ThelayoutoftheFrontPanel 2 MMA LiftTigSwitch 1 AmpDisplay 5 VoltDisplay 6 OverCurrentLight 7 HighTemperatureLight 8 VRDLight 3 AmperageAdjustment 9 PositivePolarityOutput 4 NegativePolarityOutput ...

Страница 15: ...OPERATION CONTROL AND CONNECTORS MMA160MINESPECOPERATION ThelayoutoftheBackPanel 10 PrimaryPowerLead 11 MachineOn OffSwitch ...

Страница 16: ... operation 4 3 1 Striking the arc Striking arc take the electrode upright to touch the workpiece after forming a short circuit quickly lift about 2 4 mm and arc will be ignited This method is difficult to master but with practice is quite effective electrode workpiece electrode electrode workpiece workpiece Take the electrode upright The Electrode touch the workpiece Lift up for about 2 4mm uprigh...

Страница 17: ... Welding parameters 4 4 1 Joint form in MMA In MMA welding the common basic joint form butt joint lap joint corner joint T joint 4 4 2 Electrode selection The electrode diameter selection is based on the workpiece thickness welding position joint form welding layer etc Please refer to the following table The welding current reference for different electrode diameter Electrode diameter mm 1 6 2 0 2...

Страница 18: ...le assembly gap improve the assembly quality Choose the proper welding parameters Improve the operation skill of welders Undercut Over current Arc length is too long The electrode angle is wrong Manipulation of electrode is not correct Choose the proper welding current speed The arc should be kept short The electrode angle should be correct Manipulation of electrode should be correct Incomplete pe...

Страница 19: ...stal segregation is caused At the same time with the effect of welding stress the hot crack is formed Strictly control the percentage of S and P in welding material Adjust the structure of welding material Adopt the basic electrode Cold crack Three reasons will cause cold crack The structure turned from the marten site The residual stress caused by high restraint intensity The residual hydrogen in...

Страница 20: ...c with unprotected eyes Ensure good ventilation of the machine to improve duty ratio Turn off the engine when the operation finished to economize energy sources When power switch shuts off protectively because of failure do not restart it until problem is resolved Otherwise the problem may be extended In case of problems contact your local dealer or Authorized repair agent ...

Страница 21: ...y PCB under authorised repair agent Observe whether the min max value on LED accords with the set value If there is any difference and it has affected the normal welding craft please adjust it Check whether fan is damaged and is normal to rotate or control If the fan is damaged please change immediately If the fan does not rotate after the arc welding machine is overheated observe is there is some...

Страница 22: ...y have already been debugged accurately Maintenance must be conducted carefully Only trained maintenance personal who are authorized by Arcoweld can overhaul the machine Always shut off the arc welding machine s power before working on the equipment If there are problems with the machine please contact your local agent ...

Страница 23: ...amp 6 Not easy to start arc or easy to cause sticking The plug is loose or connection is faulty Check and tighten the plug Oil or dust covered the workpiece Check and clear out MMA TIG welding selection is wrong Selecting the MMA welding 7 The arc is not stable in the welding process The arc force is too small Increase the arc force 8 The welding current can not be adjusted The welding current pot...

Страница 24: ...le drawing GM 1600 GM 2000 AC 1 AC 3 2 4 24V L TRANS2 OC Pr2 OC1 OC2 Pr1 OC1 OC2 K1 AC220 230 50 60HZ OUT OUT FAN LED1 LED2 VR1 K2 Pr3 IGBT IGBT IMOUT MBIN MB IN FJ QD8 QD3 QD1 QD2 IFB OT AC1 AC2 AC3 AC4 IGBT PFC AC 1 AC 3 2 4 ...

Страница 25: ...160 PFC CEL SYSTEM 22 ...

Страница 26: ...eads 1 year 1 year ArcoMig Inverters Power source 3 years 3 years MIG torch Electrode holders and work leads 3 Months 3 Months Mig torch consumable items Nil Nil Gas regulator flowmeter excluding seat assemblies pressure gauges elastomer seals and O rings 1 year 1 year Regulator seat assemblies and pressure gauges 6 Months 6 Months Elastomer seal and O rings used in the equipment 3 Months 3 Months...

Страница 27: ...pensation for other reasonably foreseeable loss or damage You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure Note No employee agent or representative of Arcoweld is authorized to change this warranty in any way or grant any other warranty and Arcoweld shall not be bound by any such attempt Co...

Страница 28: ... return of goods to Arcoweld or our Nominated Accredited Distributor Accredited Service Provider are the responsibility of the consumer Arcoweld A B N 98 094 428 887 T 61 8 9248 3188 F 61 8 9248 3166 93 Mulgul Road MALAGA WA 6090 PO Box 3087 MALAGA DC WA 6945 Email info arcoweld com au Website www alloysteel net This warranty is provided in addition to other rights and remedies you have under law ...

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