Pipe welder, pipe welder iron, steel welder, butt welding machine factory in Hebei

 The factory mainly produces all kinds of spot welding, pneumatic spot welder, portable spot welding machine, welding machine, pneumatic welder, saw blade welding machine, welding machine, reinforced straight thread rolling machine, wrenches, Straightening broken wire machine. Hotline: 13131867828, QQ: 1599879361. (A) the structure outlined ??? This series welder constructed mainly by the welding transformer, the fixed electrode, the movable electrode, the feeding mechanism (pressing mechanism) water cooling system and control system components. ???? About two electrodes are connected via a multi-layer copper conductor with the welding transformer secondary winding, the secondary winding of the welding transformer is cooled by circulating water. Welding on both sides and at the bottom are protective plate to avoid the molten metal splashed into transformers and switches. Welders must always clean protective metal plate splashes to avoid short circuits. ??? 1, the feed mechanism: the feed mechanism to complete the process of melting and extrusion welding required, which includes a joystick, movable transverse frame, adjusting screws, etc., when the joystick position at the poles, available The maximum working stroke of the electrode. ???? 2, the switch control: Press the button, then turn on the relay, the AC contactor pull, so the welding transformer connected. Move the joystick can be implemented resistance welding or flash welding. When the weldment due to plastic deformation and shortening, to achieve the specified upset allowance, travel limit switch screw touch the power is automatically cut off. Controlled by the secondary voltage of the power supply? 36? Volt control transformer power supply, in order to ensure operator safety. ???? 3, jaws (electrodes): fitted around the electrode holder (8) on the lower jaw (13), the lever clamp arm (10), the clamping screw (9), and another with the handle hitch (7), for holding the clamp arm. Lower jaw is CuCrZr, below the membership to energize the copper block by two wedge-shaped copper blocks to adjust the desired height of the jaws. Both sides of the wedge-shaped copper block by guard cover, drawings removed the copper shield. ???? 4, electrical device (attached electrical diagram) ?: ??? type steel welding transformer having a primary voltage of 380V, the transformer primary winding of disc winding, secondary windings around three welded copper copper pipe connected in parallel, according to the size of the weldment selectively adjusting the series welding, to achieve the desired load voltage? (with adjusted series table) ?. ??? Transformer to the electrode of a multilayer thin copper connection. ??? Energizing the length of time during welding, the welder can travel through the button switch and switch control (see electrical diagram) ?. ??? The switching control relay, the intermediate relay contactor welding power source is turned on or off. (Ii) the use of? 1, UN1--25 type of welder manual eccentric clamping mechanism. Its base and the lower electrode is fixed in welder seat board, when the handle is rotated, the eccentric wheel by pressing the jig plate weldments, the distance between the upper and lower electrodes can be adjusted by means of screws. When the eccentric release, the spring pressure to remove the electrode. ? ??? 2, UN 1--40--75--100--150 type of shape welding press weldment choice jaw, such as welding pieces of rods, welding can be directly used to configure the jaw; Shaped as weldment, weldment shape should be custom-made jaws. ??? 3, adjust the jaw, the jaws two centerlines aligned, the two test bars placed in the lower jaw positioning slot, watching two test bar corresponds neatly. As can be aligned, welding can be used;?? Such as arrhythmia, should be adjusted to the jaw. Loosen the adjustment fastening screws (12) and then adjust the adjusting screw ?,? (14) ?, and appropriately move the lower jaw, after obtaining the best position, tighten the fixing screw (12). ??? 4, according to the welding process requirements, adjust the distance between the jaws. When the lever at the left end of the jaws (electrodes) spacing should be equal to the difference between the weldment extending the length of the extrusion amount; when the lever at the far right, the electrode spacing is equivalent to two weldments extension length plus? 2 - 3? mm (ie original position before the welding), the distance is adjusted by the adjustment screw (1) to obtain. Welding rod can help you adjust the parameters. ???? 5, test welding: welding before the trial in order to prevent overheating moment weldments, should increase progressively adjusted series. When flash welding must use a higher secondary no-load voltage. Flash welding process a large number of molten metal splashes, welders must wear dark glasses. ? When the low-carbon steel welding, preferably flash welding. Load duration factor? 20%?, Weldable largest steel sectional see the data table. When ??? non-ferrous metal welding, resistance welding method should be used. ??? Jaw clamping operation as follows: (1) first with the handle (6) Turn the clamping screw (9) ,? appropriately adjusting the upper jaw (11) position??. (2) is inserted into the left and right of the weld between the upper and lower jaws, respectively. (3) by turning the handle, the clamping screw clamp weldment. Welders must ensure weldments have sufficient clamping force, can only welding, or it may lead to burning parts. Remove ??? weldment action as follows: (1) the welding process is complete, loosen the clamping screw with the handle. (2) sets the hook (7) is removable, the clamping action of the spring by the arm and lift. (3) Remove the weldment clamp arm back, put on the hitch, the next round of welding. ?? Welder can also be their own custom chucking the workpiece, but must ensure that the workpiece clamping before welding. ??? Flash welding: welding specifications steel weldments can refer to the following data: ① Current density: burn-off process, the current density is usually 6--25 A / mm, when compared with resistance welding????? The current density required 20% -? 50% ?. ② welding time: in the absence of preheating flash butt welding, welding time cross-sectional and optional power weldments may be. When the current density is small, that is to extend the welding time, usually about? 2--20? Or so seconds. ③ burn-off speed: burn-off rate depends on the current density, preheat level and weldments size, a small section in the welding weldments, burn-off rate can be up to 4--5 mm / sec, while welding a large section???? burn-off rate is less than? 2? mm? /? s. ④ top forging force: top forging force, this could result in slag inclusions and shrinkage of the weldment. In the absence of preheating flash butt welding, the top forging force should be? 5--7? Kg? /? Mm. Preheating flash butt welding, the top forging force was? 3--4 kg? /? Mm?. ⑤ upset speed: In order to reduce the metal oxide joints, upset speed should be as high as possible, usually equal to 15 - 30 mm / sec (iii) installation and maintenance welder welder ????????? After it must be properly grounded before use, in order to protect the personal safety. Welder before use to use 500V megger test coil insulation resistance between the high pressure side of not less than 2.5 megohms before electricity; to cut off the power supply when maintenance before checking out of the box. Welding leads should not be too small too long, the voltage drop shall not exceed 5% of the initial voltage of the welding, the initial voltage should not deviate from ± 10% supply voltage ?. ??? Welding operation should wear gloves, aprons and protective eyewear to prevent scalding fly to Mars. Sliding portion should be kept well lubricated, remove after use metal splashes. ??? New welder should use 24 hours after the parts screw tightening once. Pay particular attention to the secondary circuit coupled screw copper, the soft and the electrodes must be tightened well to ensure good contact after use to remove the above mechanism metal welding splashes. When welding using AC contactor found pull untrue, explained after the power supply voltage is too low, it should first solve the problem of power supply to normal use welding equipment. After power inside the machine slightly 50 Hz transformer buzzing sound description of this machine is working properly. If after prolonged use energy to reduce welding time welding significant growth, the need to remove the secondary loop oxide retighten the screws to work properly. (Iv) Symptom and exclusion? (1) The welder has four Φ 18? Mounting holes with screws to the floor, no special foundation. (2) After the welder must be properly grounded before use, in order to protect the personal safety. Welder before use 500V insulation resistance using a megohmmeter test welding between the high pressure side and the shell is not less than 2.5 megohms before electricity;???? First cut off the power before checking out of the box overhaul. When adjusting the insert should not be allowed to switch. (3) welder welding through the water first,? Anhydrous prohibited work. Cooling water should ensure that? 0.15--0.2MPa? Under water pressure supply? 5 - 30? ℃ of industrial water. You must use compressed air to blow water pipeline in the winter in order to avoid the cracking pipe welding work is completed. (4) welding wire should not be too small and too long, the voltage drop shall not exceed 10% of the initial voltage of the welding, the initial voltage should not deviate from ± 10% supply voltage ?. (5) welding operations should wear gloves, aprons and protective eyewear to prevent scalding fly to Mars. Sliding portion should be kept well lubricated, should be removed after use metal splashes. (6) New welder started? 24? Hours should the screw fastening member once, with particular attention to the coupling between the copper electrode, the soft and good screw must be tightened to guarantee good contact. (7) welder can not wet, to prevent leakage. (8) welder using welding site should not seriously affect the insulating properties of the corrosive gas, chemical sediments and corrosive, explosive, flammable media. (9) welding work should work in accordance with the duty cycle, does not allow the use of overload. (10) Failure to check and exclusion: welder overhaul should be carried out after a power outage, maintenance by a professional electrician. ① Press the control buttons do not work welder. Check the power supply voltage is normal ????, ???? check control circuit wiring normal, whether ???? Check AC contactor closes. ???? Check the main transformer coil is burned out. ② Loosen the screws touch control buttons or travel limit switch? Transformer still work. ???? Check the control button, limit switch is normal, ??? Check AC contactor, relay armature whether oil adhesions can not be disconnected, causing the main transformer continuous power supply. ③ welding is not normal, there should be no splashing occurs. ???? Checking whether the workpiece dirty with oil, rust marks. ???? Check whether the screw pressing mechanism can compress the workpiece. ???? Check the electrode jaws is smooth, with or without iron track. ④ lower jaw (electrode) adjustment difficulties. ???? Check electrode gap adjustment block whether spatter blocked ???? Check and adjust the block, lower jaw adjustment screw is burning, sintering, severe deformation. ?? ⑤ not normal welding AC contactor abnormal sound. ???? Measuring AC contactor welding line voltage is lower than the release voltage 300V ?, ???? own checks lead too thin is too long, too much pressure drop, ???? check the network voltage is too low, It does not work properly. ???? Check whether the main transformer short-circuit, resulting in too much current. ??? Check out the fault location according to repairs, replacement parts, adjust. The welder of wearing parts have left and right electrode (lower jaw), the material is copper chromium zirconium alloy, the user can purchase or to our own making.