Product name: DSP digital inverter pulsed gas shielded welding with melting electrode
Usage: Professional welding of aluminum, aluminum alloy, magnesium, copper, titanium, stainless steel, carbon steel and other metal materials.
Model: MIG -3 15/400/500
Application fields: efficient welding of aluminum, aluminum alloy and stainless steel; Robot welding; Automatic plane welding.
Product features:
1. integrates single pulse gas shielded welding, gas shielded welding and manual arc welding.
2. Mature authoritative welding expert database system in Europe and Sweden, and DSP digital control technology.
3.LCD Chinese menu and LED digital display, the voltage adjustment accuracy is 0. 1V, and the current accuracy is 1A, which realizes the precise fine adjustment of parameters.
4. Wide working voltage range, strong instantaneous anti-grid dynamic, AC260V~ AC460V, and the machine can ensure safe use.
5. It has unified regulation function, powerful expert database and automatic calculation and matching of current and voltage.
6. It can cooperate with all kinds of automatic welding machines, and can increase the data connection port of arc welding robot to realize automatic welding.
7. The welding data of various welding conditions can store 30 groups of expert welding process parameters, which is convenient to call and ensures the control of the best process parameters.
8. It has a wide range of welding technology and welding wire thickness selection, and is suitable for welding aluminum, aluminum-magnesium alloy, stainless steel, carbon steel, copper and other metals.
9. Using waveform control, the welding process is stable and well formed, and the range of current and voltage is wide.
10. Arc thrust can be adjusted with the length of welding cable to realize long-distance welding.
1 1. With computer USB interface, networking and software. It has the functions of remote upgrade, control, diagnosis and monitoring.
12. Three other welding functions can be added through software upgrade: DC TIG welding, pulsed TIG welding and TIG spot welding with argon arc welding timing.
13. Omni-directional protection function: it has the functions of constant voltage, constant current, undervoltage, undercurrent, overvoltage and overcurrent protection, ensuring the stability and long service life of the machine.
Main technical parameters:
Product model/specification: MIG -3 15/ MIG -400/ MIG -500
Rated input voltage (V): 3 ~ 380 V 50/60 Hz
Rated output capacity (a): 315a-32.6v/400a-36v/500a-40v.
Output no-load voltage (V): 55V ~ 80V
Load duration: 60%
Power factor COSφ :≥0.85
Estimated efficiency: 85%
Overall dimensions (mm): 510x255x540/510x255x540/610x320x600.
Net weight (kg): 25/29/38
Parameter storage area (unit): 30
MIG/MAG parameters of melting electrode pulse;
Output current (a): 30-3 15/30-400/30-500.
Arc force (a/ms): 1- 10.
Output voltage (v):10-34/10-38/10-42.
Operation mode: 2T, 4T
Secondary current (a): 30-3 15/30-400/30-500.
Secondary voltage (v):10-34/10-38/10-42.
DSP full digital aluminum welding machine, automatic wire feeding aluminum welding machine, pulse MIG aluminum welding machine, aluminum plate spot welding machine, aluminum alloy welding machine, label welding machine.
Difficulties and solutions of aluminum alloy welding technology and welding machine
Foreword:
As we all know, the welding of aluminum alloy is different from ordinary carbon steel and stainless steel, and there are many problems to be solved. Below, I will tell you how to weld aluminum alloy in the most concise language from the characteristics, welding difficulties and solutions of aluminum alloy materials in welding.
1. Characteristics and welding difficulties of aluminum alloy materials in the welding process:
1, the thermal conductivity is very large, about 2 to 4 times that of steel, and the heat resistance is very poor. General aluminum alloy is not resistant to high temperature.
Aluminum alloy sheet with large expansion coefficient is prone to welding deformation and obvious welding crack tendency, and the thinner it is.
The harder it is to weld, the easier it is to weld through.
2, aluminum alloy welding is easy to produce porosity, because before the weld is formed, the hydrogen in the molten pool cannot be discharged.
There are air holes in the weld.
3. When the surface of aluminum alloy is directly exposed to air, it is particularly easy to produce a layer of refractory oxidation model (composed of trioxide)
Iron oxide), the melting point of this oxide film is as high as 2050 degrees, so the oxide film will be produced during TIG welding.
No penetration, no welding, etc.
4. The aluminum alloy welded joint is severely softened, and the weld strength coefficient is lower than that of the base metal.
5. The surface tension of aluminum alloy material in molten state is small, and it is easy to sag.
Second, according to the characteristics and welding difficulty of the above aluminum alloy materials, the following requirements should be met when welding aluminum alloy:
1 Requirements for welding equipment:
First of all, talk about the welding equipment when using MIG/MAG welding method. MIG/MAG welding machine for welding aluminum alloy must have pulse function, including single pulse and double pulse. It is best to weld aluminum alloy with double pulse. Double pulse is simply the superposition of two pulses, and a fixed high-frequency pulse is superimposed on a low-frequency pulse, which is high-frequency pulse low-frequency modulation. A low-frequency pulse is added to the high-frequency pulse, so that the double-pulse current switches between the peak current and the base current at a certain frequency (the frequency of the low-frequency pulse), and a regular fish-scale pattern is formed in the weld. In the welding process, the weld formation is improved by adjusting the frequency, peak value and base current of low-frequency pulse. Firstly, adjusting the frequency of low-frequency pulse determines the switching speed of double-pulse peak current and base current, which is reflected in the fine fitting degree of weld fish scales, the slow switching speed of low-frequency pulse, double-pulse peak current and base current, and the large distance between fish scales. On the contrary, the low-frequency pulse frequency is high, the switching speed between the double-pulse peak current and the base current is fast, and the distance between weld scales is small and thin. The corresponding penetration depth can be obtained by adjusting the peak current and the base current according to the thickness of the plate. In the process of switching the peak current and the base current, the molten pool can be effectively stirred, and hydrogen can be discharged to reduce porosity. Reduce the heat input to the base material, prevent the aluminum alloy material from overheating to produce expansion deformation, and refine the weld structure, thus improving the weld strength.
2 Matters needing attention in welding aluminum alloy:
(1) Before welding aluminum alloy, the surface of aluminum alloy should be cleaned, free of oil stain and dust. It can be cleaned with acetone.
Clean the welding surface of aluminum alloy. Clean the thick aluminum alloy with a wire brush, and then add acetone to clean it.
(2) The choice of welding wire should be as close as possible to the parent metal, and the choice of aluminum-silicon or aluminum-magnesium welding wire should be decided according to the requirements of welding seam. in addition
Al-Mg welding wire can only weld Al-Mg materials, while Al-Si welding wire can weld Al-Si and Al-Mg materials.
(3) When the plate is thick, it needs to be preheated to prevent incomplete penetration caused by insufficient preheating.
When starting the arc, close the arc with a small current to fill the pit.
(4) It is best to use double pulse.
(5) An AC /DC argon arc welding machine is adopted for tungsten electrode argon arc welding, the welding current is switched between positive and negative, and when the tungsten electrode is positioned,
An oxidation die for cleaning the aluminum surface of the positive electrode is welded on the negative electrode.
(6) The welding specification shall be set according to the plate thickness and weld requirements.
(7)MIG welding should use aluminum wire feeder and PTFE guide tube, which will not produce aluminium scrap.
(8) The welding torch cable length should not be too long, and the aluminum welding wire is soft, which will affect the wire feeding stability.
Three. Recommended welding power supply
GLC333MC4, a fully digital inverter welding power supply developed by Germany CLOOS Company, is a fully digital inverter welding power supply with the following functions:
MC4 is an advanced MIG/MAG welding machine integrating welding power supply and wire feeder, which has the characteristics of small volume, high power, advanced performance and convenient use. MC4 is an intelligent welding machine. As long as the welding material parameters are input according to the prompt, the "brain" of the welding machine will automatically adjust the most suitable welding specification without splashing. Can be used for welding steel, aluminum alloy, copper alloy, magnesium alloy, titanium alloy, galvanized sheet and other metals. Even if the thickness of aluminum alloy is less than 1mm, MC4 can easily obtain a weld with proper penetration and beautiful appearance. The welding of different metals, such as aluminum and galvanized sheet, aluminum and copper, has been successfully realized.
The rated current is 210a/300a; /300a has the highest power among similar welding machines, and the load duration is 60%; Peak current 500A
Built-in 100 typical welding specifications for various materials.
Unique penetration control technology. Close.
Unique double pulse welding function of aluminum alloy and stainless steel.
Unique MIG arc brazing function
Splash-free arc ignition technology
Single knob unified power output adjustment
Standard configuration of digital programming interface for welding process
MC4/R digital interface is suitable for use with robots or special welding machines.
Standard RS232/RS485 computer interface.
Rich optional process and control software.
Standard configuration:
1 GLC283/333MC4 welding power supply (built-in wire feeding system) (optional water cooling system)
2 air-cooled MIG/MAG welding guns (optional length) (optional water-cooled welding gun)
3 ground wires (3m)
4 Welded steel wire feed assembly (1.2mm) (welded aluminum wire feed assembly and specifications are optional)
If you have any questions about welding aluminum, you are welcome to contact us.
Tak-Chi Lee Welding Engineer 13902863096 Zhuhai Jinbao Hot Melt Welding Technology Co., Ltd. German Cross Welding Machine General Agent German Cross Welding Machine Exhibition, Service and Training Center.