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CNC flame cutting machine in use, in addition to the requirements of the hardware and equipment, the common parts and accessories of the quality and stability of the need to have a certain understanding of cutting the nozzle as a CNC flame cutting machine is a key component, usually Used in the processing process, the operator's failure and its handling methods have a better grasp.
1, the nozzle and cut the flame, after a rigorous processing, although the fire flame normal, but open the cut oxygen valve, the flame immediately extinguished. The reason is cutting the mouth and the torch, a look is not strict. This should be cut mouth tightened, ineffective remove the cut mouth, with fine sandpaper gently. Cut the nozzle with a surface finish until it is close to the surface.
2, to keep the cutting mouth channel cleaning incision channel should be kept clean, dirt within the pores should be removed at any time with a needle.
3, the flame is extinguished after the ignition, when the screw preheat oxygen valve to adjust the flame. If the flame is extinguished immediately. The reason is that the memory of the gas channel is dirt or the tube is not in contact with the horn, and the incision sleeve and the mouth are inappropriate. At this point, the injection pipe nut; invalid, should remove the fuel injection pipe, dirt and adjust the gas channel in the clear cover and the inner sleeve gap and fastening.
4, select the appropriate incision should be based on the thickness of the workpiece, select the appropriate incision. When the cutting nozzle is assembled, the inner and outer nozzles must be kept concentric to ensure that the cutting oxygen jet is located at the center of the preheat flame.…
A metallurgical apparatus for cutting a nozzle for cutting a flame, characterized in that the preheated oxygen passage is an inverted cone and the gas passages inside the cutting nozzle are not in communication with each other, The annular cavity at the nozzle outlet. The utility model has the advantages of simple structure, safe operation and convenient operation, avoiding the flame cutting of the hot continuous casting billet, splashing the slagging and cutting the nozzle outlet gas (or preheating the oxygen) channel, preheating the oxygen back to the gas pipeline and tempering; To overcome the phenomenon of metal slab cutting, reducing the consumption of metal blanks.…
Need to cut a variety of welding methods
1 hand arc welding
Manual arc welding equipment is simple, lightweight and flexible. Can be applied to welding in short welds, especially for welding of welded parts that are difficult to achieve. Manual arc welding with the corresponding electrode can be used for most industrial carbon steel, stainless steel, cast iron, copper, aluminum, nickel and its alloys.
2 TIG welding
This is a non-consumable electrode gas shielded arc welding, which uses a weld between the tungsten electrode and the arc of the workpiece. Tungsten welding process to melt, only play the role of the electrode. Protected by welding nozzle or argon or helium. Can also be added according to the needs of the metal. In the international are known as TIG welding.
3 gas shielded welding
This welding method is the use of wire and the workpiece between the continuous wire as a heat source, gas welding welding arc welding mouth on the welding.
Gas protection welding gas welding is a commonly used protective gas: argon, helium, carbon dioxide gas or a mixture of these gases. (O2, CO2) is a mixed gas of a protective gas, or a mixture of CO2 or CO2 + O2 is mixed with a gas mixture of argon or helium gas. As a protective gas, or carbon dioxide + O2 mixed gas for the protection of gas, collectively referred to as the melting pole of the active gas welding (referred to as the world's MAG welding).
The main advantage of arc welding arc welding is that it can be easily welded in different locations, with the advantages of high welding speed and high deposition rate. Metal arc welding can be applied to most major metals, including carbon steel and alloy steel. Inert gas shielded welding for stainless steel, aluminum, magnesium, copper, titanium, zirconium and nickel alloys. With this welding method can be arc welding.
4 plasma arc welding
Plasma arc welding is a non-melting arc welding. It is the use of the electrode and the workpiece between the compression arc (known as the forward arc) welding. The electrode used is usually a tungsten electrode. The plasma gas produced by the plasma arc may be used in combination with argon, nitrogen, helium, or both. At the same time, through the nozzle with inert gas protection. In welding can be applied to fill the metal, or without filling the metal. Plasma arc welding, because of its arc straight, high energy density, and thus the ability to penetrate the arc. Plasma arc welding hole effect, for a certain thickness of the majority of the metal can not open the slot docking, and to ensure penetration and weld uniformity. Therefore, the plasma arc welding productivity is high, the weld quality is good. However, plasma arc welding equipment (including nozzles) is more complex, and the welding process parameters are controlled more. The vast majority of gas protection arc welding, welding plasma arc welding. In contrast, welding 1mm thin metal, can be easily applied in plasma arc welding.
5 tube arc welding
The welding of the tubular wire can also be used for continuous wire feeding and arc welding between the workpieces as a heat source for welding, which can be considered as a gas shielded weld. The wire used is a tubular wire, the flow of the components within the tube. Welding, plus natural gas protection, mainly carbon dioxide. Flux heat decomposition or melting, slag protection from the bath, alloying and arc stability of the role. Steel arc welding and arc welding electrode welding effect has a very excellent arc welding. Tubular wire arc welding can be used for welding of various welded joints. Steel arc welding in some foreign countries have been widely used. "Tubular filament", now known as "flux cored wire"
6 resistance welding
This is the performance of the thermal welding method, including the slag welding heat energy of the slag resistance and solid resistance heat for the energy resistance welding. Since electroslag welding has a more unique feature, it is described later. Introduced several commonly used solid resistance thermal resistance welding, spot welding, welding, welding and butt welding and so on.
Resistance welding is generally the workpiece under certain conditions, through a certain electrode pressure and current through the workpiece generated by the resistance of the thermal contact of the workpiece surface and welding methods to achieve the connection. Usually use high current. In order to prevent the occurrence of contact surface arc, and forging the weld, the welding process is always to swing.
This type of resistance welding, welding surface welding quality stability is the most important. Therefore, the contact between the electrode and the workpiece, as well as the workpiece and the workpiece must be cleaned before welding.
(A few to several thousand amperes), a short time of electricity (a cycle to a few seconds), the equipment is expensive, complex, high productivity. Therefore, it is suitable for large-scale production. Sheet assembly, mainly used for welding thickness less than 3mm. All kinds of steel, aluminum, magnesium and other non-ferrous metals and alloys, stainless steel, etc. can be welded.
7 electron beam welding
Electron beam welding is a high-speed electron beam bombardment of the workpiece surface heat energy generated by the method. Electron beam welding produces electron beam, electron gun acceleration. Commonly used electron beam welding: high shock
