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General introduction   

YJHB-2  is  a  micro  repair  welder  with  TIG-like  welding  pulses.  The  welder  can  generate  very 
precise welding pulse to produce fine-sized and 

positioned welding spots.   

The machine can weld a variety of materials incl. all types of steel and iron, Aluminum, copper, 
brass, bronze. 
It can weld even very small details with very thin fillers, and weld fast with thicker fillers.   
Although the machine is easy to use, it still requires some manual dexterity. We recommend you 
use some time to practice, with support from the tips in this manual. 

 

 
 

Technical data 

1: The machine can weld in Fe, Cu, Al. The machine can not be used for welding: Sn, Zn. 
2: The machine can be used: 

 Repair of worn and faulty details in the form tool for pressure casting, injection molding, blow 

  molding, etc.. 

 Defects in castings, such as pinhole, sand holes etc.. 

 Other small and precise welding tasks as a normal TIG welder can not perform. 

3: Electric Input: 220V, 50Hz.   
4: Power consumption 10-1000W. 
5: Maximum instant output is 40kW. 
6: Mode: 

TIG power mode 1-4. Pulse power (current): 1-99, Pulse time (hours): 1-99. 

               

 Set Filler mode: Pulse power (current): 1-99, Filler diameter of 0.1 - 1mm. 

7:Pulsens frequency: 1Hz (mode4), 2Hz (mode3), 3Hz (Mode2), 5Hz (Mode1) 
7: Machine dimensions: 380 x 150 x 220 mm. 
8: Weight: 9 kg. 

 
 

Welding Screen 

The  welding  screen  is  controlled  by  the  welder  machine  and  can  shield  the  arc  light 
simultaneously. You need to install the screen as shown in the picture blow and plug its wire on 
the back of the machine.   

 

You must TEST the screen before welding.   

Summary of Contents for YJHB-2

Page 1: ... assistance in operating the machine We welcome all suggestions that can improve the machine performance Before using the welder pls read through this manual to enable you a smooth start and a satisfactory performance Contact Information Yuyao Yijing Electric Co Ltd Simen West Industrial Estate Yuyao City 315470 Zhejiang Province P R China Tel 0086 574 6215 3034 Fax 0086 574 6215 1870 E mail overs...

Page 2: ...welding screen or the like which can protect your eyes from the blazing light Even a brief exposure can cause permanent damage to eyesight Pls BE CAREFUL Protect your body against the light from the arc while the skin can be damaged by radiation Use protective clothing that covers all parts of the body If possible shielded the total working area to protect others from the light from the arc at lea...

Page 3: ...achine can be used Repair of worn and faulty details in the form tool for pressure casting injection molding blow molding etc Defects in castings such as pinhole sand holes etc Other small and precise welding tasks as a normal TIG welder can not perform 3 Electric Input 220V 50Hz 4 Power consumption 10 1000W 5 Maximum instant output is 40kW 6 Mode TIG power mode 1 4 Pulse power current 1 99 Pulse ...

Page 4: ...r continuously by pressing the foot pedal switch 4 Pulse currency display and setting 5 Pulse time display and setting 6 On Off 7 Foot pedal connection 8 TIG Welding torch connections 9 Ground cable connections 10 Set Filler welding cable connections 1 2 3 4 5 6 7 8 9 10 ...

Page 5: ...at is welded on For iron we recommend filler with low Wc Set Filler Mode This function is a very useful aid when you need weld on very delicate complicated positions You can pre weld the filler with set filler mode and then you use the TIG mode to re weld the filler thoroughly onto the position This function can free your hand from the traditional tiresome way of feeding the fillers You can stable...

Page 6: ...en tip is in a precise position and it should always be closer to the surface and farther from the filler Pls see the following pictures Machine Settings Filler DIA mm TIG MODE Pulse Currency Pulse Time V mm L mm Ø 0 3 1 06 06 0 3 0 4 Ø0 4 1 10 10 0 4 0 5 Ø0 5 1 12 12 0 5 0 6 Ø0 6 2 15 15 0 6 0 8 Ø0 7 2 20 20 0 8 1 0 Ø0 8 3 25 25 0 9 1 2 Ø1 0 3 30 30 1 1 1 3 Ø1 2 4 38 38 1 2 1 4 Ø1 6 4 55 55 1 3 1...

Page 7: ... picture There should be a distance about the filler diameter between two neighboring fillers During TIG welding the fillers will melt and fill the spot between two neighboring fillers Welding on Corners and Edges The Start of a Corner Welding on corners and edges is a more difficult task than to weld on a flat The most common problem is that there is undercut workpiece molt more than welded on at...

Page 8: ... 05 11 0 5 Ø0 5 2 08 13 0 6 Ø0 6 2 10 15 0 8 Ø0 7 2 14 20 1 Ø0 8 2 18 25 1 2 Ø1 0 2 22 30 1 3 Welding in Interior Corners When welding in interior corners we need to use sharp tungsten pin First of all we need TIG weld without any fillers This is to prepare for the next steps When the interior corners is round it is much easy to weld Set filler Function is also very useful here especially when the...

Page 9: ...Machine Settings How much needs to be repaired mm TIG MODE Pulse Currency Pulse Time V mm 0 3MM 1 05 5 0 2 0 5MM 1 10 15 0 3 0 8MM 2 18 20 0 4 1 2MM 2 22 25 0 5 1 6MM 3 25 30 0 6 2 0MM 3 28 30 0 8 ...

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