What is cold welding machine? Cold welding machine: Simply put, if the welding is not hot, you can touch it by hand. If the workpiece is not heated or insulated, it can also be called cold welding.
Cold welding machine can deposit, seal and repair the wear, abrasion, porosity, crack, defect deformation, hardness reduction, sand holes and damage of metal workpieces. The operation is simple, the heat input is low, and there is no heat input in the instant process of surfacing, so the mold does not deform, anneal, undercut, generate residual stress, and do not change the metal structure state of the mold or product. The repair precision is high, and the thickness of the coating ranges from several microns to several millimeters, and it only needs to be polished. It can also be used for turning, milling, planing, grinding and other mechanical processing, as well as advanced and reliable post-processing equipment such as electroplating. German native technology and international standard high-power argon protection can work for a long time.
Suitable substrates:
Include low carbon steel, medium carbon steel, die steel, stainless steel, tool steel, cast iron, cast steel, cast aluminum, aluminum alloy, copper alloy, nickel alloy, carbon-tungsten alloy, etc. And all electrical conductors that can conduct electricity.
Cold welding based on cold welding machine principle (low heat input);
1, mold manufacturing industry
The surface of plastic mold is roughened, which increases the aesthetic feeling and service life; Surfacing repair of parting surface of helmet plastic mold: surface strengthening of shunt cone of aluminum alloy die casting mold: cavity repair and strengthening of out-of-tolerance, wear and scratch.
2. Plastic rubber industry
Repair of rubber and plastic mechanical parts, out-of-tolerance and wear of rubber and plastic parts and repair of molds.
3. Aviation and aerospace industry
Repair or repair of aircraft engine parts, turbines and turbine shafts, surface strengthening and repair of rocket nozzles, repair of aircraft outer plate parts, strengthening or repair of artificial satellites, local carburizing and strengthening of titanium alloy parts, local carburizing and strengthening of high-temperature alloy parts, anti-corrosion coating such as A 1 on the surface of magnesium alloy parts, surfacing repair of local defects of magnesium alloy parts, surfacing repair of nickel-base/cobalt-base high-temperature alloy blade parts, such as blade crown damping surface and blade tip and guide vane wear.
4, automobile and locomotive manufacturing and maintenance industry
In the automobile manufacturing and maintenance industry, it is used to make up the difference and repair cams, crankshafts, pistons, cylinders, brake discs, impellers, aluminum wheels, rims, clutches, friction plates, exhaust valves, etc. And make up for the surface welding defects of the automobile body.
5. Shipbuilding and power industry
Repair of electric crankshaft, shaft sleeve, bearing bush, electrical components, resistors, etc. Welding of the connecting piece between the wheel and the bottom rail of the electric locomotive, manufacturing and welding of the conductive roller and copper-aluminum oxide electrode in the electroplating factory.
6, machinery industry
Correcting out-of-tolerance workpieces, repairing machine tool guide rails, various shafts, cams, hydraulic presses, oil press plungers, cylinder walls, journals, rollers, gears, pulleys, spring forming mandrels, plug gauges, ring gauges, various rollers, rods, columns, locks, bearings, etc.
7. Foundry industry
Repair defects such as sand holes and air holes in iron, copper and aluminum castings, and repair aluminum mold wear.
8. Chemical industry
The stirring shaft and slurry of the reactor can be welded with wear-resistant and corrosion-resistant layers. This method can be used to process pump plunger, pump impeller, pump shell, sealing ring, shaft sleeve, valve sealing surface, valve stem, valve core, fan blade, compressor crosshead, acid-proof pump plunger impeller, sleeve and annular parts.
(2) Characteristics of cold welding machine:
This product is powerful and popular, and is mainly used in foundry, electric power, locomotive, aerospace and other industries.
1. Realize real cold welding, the workpiece does not need preheating or heat preservation in the repair process, there is no heat input in the instant surfacing process, the workpiece does not deform, anneal, undercut, generate residual stress, and does not change the metal structure state of the workpiece.
2. The bonding strength of repair welding is high, because covered electrode is ionized by arc and instantly transferred to the workpiece in contact with it, so the bonding strength is high and it will not fall off.
3. The repair precision is high, and the thickness of the coating ranges from several microns to several millimeters, and only grinding and polishing are needed. It can also be used for post-treatment such as turning, milling, planing, grinding and electroplating.
4. One machine has multiple functions, which can be used for surfacing repair, surface strengthening and other functions.
5. It is economical, practical and portable, and can be maintained on site, thus improving production efficiency and saving time and cost. And is convenient to use, and can be operated and used by anyone after short-term training.
6. Suitable for all kinds of substrates, including all kinds of die steel, stainless steel, tool steel, cast iron, cast aluminum, aluminum alloy, copper alloy, nickel alloy, etc. And all electrical conductors that can conduct electricity.
7. Good environmental protection performance, no noise, dust, waste liquid, strong light and peculiar smell.
8. Even if the wear of surfacing layer is repaired, it can be repaired many times in the same position.
9. High quality surfacing layer can be obtained by inert gas protection such as argon.
10. Because the rotating covered electrode is adopted, there is no wire sticking phenomenon, the operation is convenient, the quality of surfacing layer is high, and the margin of surfacing layer can be controlled to a minimum. ......
What gas does cold welding machine use?
Argon gas should be used to protect the workpiece.
Professional cold welding machine manufacturer
What kinds of cold welding machine are commonly used?
1. Energy storage resistance welding overspeed reaches cold welding machine energy storage resistance welding cold welding machine, also called mounter. This kind of welding machine uses steel plate and powder as repair materials, and uses repair materials and tools.
Contact resistance, defect repair. The picture is shown on the left. The advantages of this machine are: low price, no need of argon protection, easy to carry, suitable for mobile operation, especially suitable for repairing defects with depth less than 0.50 mm
1. It is smaller, lighter (the main engine weighs only 8Kg) and has higher power.
2. Microcomputer control, intelligent adaptation to different thickness of materials, different workpieces and different welding head sizes. Power distribution is more reasonable, and digital display and operation are more intuitive and convenient.
3. Switching power supply technology can still ensure stable high power output and welding quality when the voltage fluctuates within the range of 220 V 20%.
4. Separate the precision welding mode from the precision welding head to provide more support for precision operation.
2. Shenzhen Chaoda cold welding machine argon shielded high-energy welding machine uses filament as repair material, and uses high-energy arc with precise control to fuse the repair material with the parts, with good bonding force. The film is as shown on the left.
The advantages of this machine are: high power and fast repair speed. It can be widely used in all kinds of steel, copper, aluminum and related alloys, especially for a large number of repairs.
1. High welding strength: completely metallurgical welding, deeper penetration, and the effect is comparable to that of laser welding.
2. High repair precision: round wire filler can be used for repair, without losing the original datum plane, with less redundant solder and easy post-shaping.
3. Fast repair speed: the fastest repair amount can reach 100mm3/min.
4. Small damage to the substrate: small hot spots will not cause annealing deformation of the substrate.
5. Easy to carry: the whole machine is small in size and light in weight.
3. Argon-protected EDM precision mould cold welding machine This kind of welding machine uses flux-free welding wire or covered electrode to remove the coating as repair material, and uses spark instantaneous discharge to transfer the electrode material to the surface of the workpiece to be repaired, so that the welding material and the workpiece are metallurgically fused into a whole. Can repair steel, copper, aluminum and other metals.
1. Easy to install and operate.
2. The welding strength is high, and the weldment has no annealing, crack and deformation, and can pass various flaw detection tests after processing.
3. Welding wires or covered electrode with various hardness are used, and the welding materials range is wide, and the diameter is below 4.0mm..
4. The repair speed is fast and the repair accuracy is high.
● Aluminum, aluminum alloy ● Copper, copper alloy ● Carbon steel, stainless steel ● All steel, semi-steel ● Cast steel, cast iron.
● Defects repaired by stamping dies, forging dies, injection dies, casting dies, die-casting dies, metal products, machine parts and tools.
● Pinholes, air holes, burrs, flash ● Collision, abrasion ● Corner collapse, corner collapse ● Sand holes, cracks ● Wear and depression ● Manufacturing errors, manufacturing defects and welding defects-Henkel Machinery
What are the uses of cold welding machine?
The use of cold welding machine
1, mold manufacturing: roughening the surface of plastic molds to increase aesthetic feeling and service life; Surfacing repair of parting surface of helmet plastic mold: surface strengthening of shunt cone of aluminum alloy die casting mold: cavity repair and strengthening of out-of-tolerance, wear and scratch.
2. Plastics and rubber industry: repair of rubber and plastic mechanical parts, out-of-tolerance and wear of rubber and plastic parts and repair of molds.
3. Repair or repair of aircraft engine parts, turbines and turbine shafts in aerospace industry, surface strengthening and repair of rocket nozzles, repair of aircraft outer plate parts, strengthening or repair of artificial satellite shells, local carburizing and strengthening of titanium alloy parts, local carburizing and strengthening of high-temperature alloy parts, anti-corrosion coating such as A 1 on the surface of magnesium alloy parts, surfacing repair of local defects of magnesium alloy parts, surfacing repair of nickel-based/cobalt-based high-temperature alloy blade parts, such as blade crowns.
4. Automobile and locomotive manufacturing and maintenance industry In the automobile manufacturing and maintenance industry, it is used to compensate and repair cams, crankshafts, pistons, cylinders, clutches, friction plates and exhaust valves. And repair of welding defects on the surface of automobile body.
5. Repair of electric crankshafts, bushings, bearing shells, electrical components and resistors in shipbuilding and power industry, welding of connecting pieces between wheels and bottom rails of electric railway locomotives, production and welding of conductive rollers and copper-aluminum electrodes with metal oxidation treatment in electroplating plants.
6. The machinery industry corrects out-of-tolerance workpieces, and repairs machine guide rails, various shafts, cams, hydraulic presses, plungers of oil presses, cylinder walls, journal, rollers, gears, pulleys, mandrels, plug gauges, ring gauges, various rollers, rods, columns, locks and bearings for spring forming.
7. Repair defects such as sand holes and air holes in iron, copper and aluminum castings in the casting industry, and repair the wear of aluminum models.
8, chemical industry reactor mixing shaft and slurry can be welded wear-resistant and corrosion-resistant layer. This method can be used to process pump plunger, pump impeller, pump shell, sealing ring, shaft sleeve, valve sealing surface, valve stem, valve core, fan blade, compressor crosshead, acid-proof pump plunger impeller, sleeve and annular parts.
9. Blower parts, dump truck parts, grading filters, various punching and grinding, coal conveying screws, transmission parts, steam valves, heavy-duty bearings and roller surface strengthening in metal, electric power, metallurgy and coal industries, V-shaped conveying roller surface strengthening in pipe production line, guide roller surface strengthening in wire production line, roller surface roughening treatment, and roller surface crushing and damage groove (pit) online.
10, cement drying equipment in cement industry, fan blades, transmission parts, gear shafts, roller tugs, various bearings, shaft sleeves, etc. Be strengthened or repaired.
1 1. Construction machinery parts repair, cement mixing slurry, brick machine bridge, spindle reinforcement, etc.
12. Paper industry: repair of paper dryer, press roller, journal, gear shaft and pulley.
13, printing industry: surface strengthening and repair of printing ink tanks and printing rollers,
14, food industry: the maintenance of food machinery parts and the repair of food molds are the best methods. If it is repaired by other welding, it will burn the mold.
15. Printing and dyeing industry: The maintenance of parts in printing and dyeing machinery, especially the maintenance and anticorrosion of printing and dyeing equipment, has its own characteristics.
Does cold welding machine need argon?
Cold welding machine needs argon. The amount of argon is very small, only one sixth of that of argon arc welding, and the electricity consumption in cold welding machine is also very small, so household electricity can meet the normal work in cold welding machine.
I am now engaged in cold welding machine industry, and cold welding machine is a new product, which has only been available in recent ten years. Now there are all kinds of cold welding machine on the market, and even many fake cold welding machine, which are actually modified by argon arc welding. Therefore, a warm reminder, please identify the brand when buying cold welding machine, and choose to buy from a regular company. Avoid buying it back and not using it.
I had a client who bought a fake one before, so I couldn't use it when I went back. Then I went to our company and bought another one. Hongben Industry welcomes your consultation.
What's the use of laser cold welding machine and what's the benefit of cold welding machine? 40 points
Cold welding machine's words, the operation is simple, professional technicians are not needed, and there will be no deformation and discoloration after welding. Portable, easy to take out.
What gas did cold welding machine use?
It should be an isolation gas: argon.
The effect is better!
Is cold welding machine easier to operate than other welding machines?
There are many kinds in cold welding machine, mainly patches or laser imitations, which should be relatively simple to operate. If this skill training is needed, this cold welding machine offers welding training.
What kind of cold welding machine is suitable for casting repair?
According to your requirements, there are two kinds of general cold welding machine, one is precision repair welding machine, and the other is electric spark surfacing repair machine.
Both can be repaired by welding. If the requirements are not very strict, it can be repaired by electric spark surfacing repair machine only by grinding and polishing. If testing is needed in the future, they can repair it with a precision repair welding machine.
The difference between them is that the hardness of surfacing welding is less than 30, and the hardness of melting welding wire can reach 58 degrees at the highest. If you have any questions, please call Acer Cold Welding Machine Factory for consultation.
But for castings, most manufacturers use EDM surfacing repair machine.
Due to strict requirements, a small number of steel castings are repaired by precision repair welding machine.