The standard method of welding aluminum! Aluminum Suppliers

Welding method:
Almost all kinds of welding methods can be used for welding aluminum and aluminum alloys, aluminum and aluminum alloy but with different adaptability to a variety of welding methods, various welding methods have their respective applications. Gas welding and arc welding methods, devices, simple and easy to operate. Welding can be used for less demanding welding quality aluminum sheet and castings welding. SMAW welding aluminum alloy castings can be used. Inert gas welding method is the most widely used method for welding aluminum and aluminum alloys. Aluminum and aluminum alloy sheet can be tungsten or tungsten AC TIG pulse welding. Aluminum and aluminum alloy plate can use tungsten arc welding helium, argon-helium mixed gas tungsten arc welding, MIG welding, pulsed MIG welding. MIG welding, pulsed MIG welding is widely applied, before welding preparation.(3003 h14 aluminum)
Clean up before welding:
1, aluminum and aluminum alloy welding, welding should be strictly removed before oxide film and the oil and the workpiece weld wire surface; clean up after such long time storage, reprocessing.(aluminum floor plate sale)
2, plate: aluminum at low temperature strength, good flow properties of liquid aluminum weld metal during welding prone to staying phenomenon. In order to ensure penetration but will not collapse, welding often used to hold the plate and around the metal bath. Pad can be graphite plate, stainless steel, carbon steel, copper, or copper and the like. Surface of the pad to open a circular grooves, in order to ensure that the weld negative shape. May not add side welding plate forming, welding operation but requires skilled arc welding or take strict energy automatic feedback control and other advanced technological measures.
3, preheat: thin, small pieces of aluminum generally do not preheat thickness 10 mm ~ 15mm preheat time can be, depending on the type of aluminum alloy preheating temperature can be 100 ℃ ~ 200 ℃, available oxygen a acetylene flame, furnace or other heating blowtorch. Preheat weldment can reduce distortion, reduce porosity and other defects. After the welding process.(aluminum alloy 5052)
Stay clean up after welding and seam welding in the vicinity of the residual flux and welding slag will destroy the aluminum surface passivation film, sometimes corrode aluminum parts, should be cleaned. Simple shape, the general requirements of the workpiece can be a simple way with hot water or steam blowing scouring brush to clean. Demanding and complex shape of aluminum parts in hot water after brushing with a stiff brush, and then at about 60 ℃ ~ 80 ℃, concentration of 2% to 3% aqueous solution of chromic acid or potassium dichromate solution immersion 5min ~ 10 min, and scrub with a stiff brush, then washed in hot water washing, drying oven or with hot air drying, can also be dried naturally.
Post weld heat treatment of aluminum containers generally do not require post-weld heat treatment.

Traffic safety signs Semi-finished (aluminium sheet)

There are several road signs:Prohibition signs, warning signs, tourist signs, speed limit signs, instructions signs, reflective signs, safety signs.
[General Configuration] sign posts(aluminum floor plate sale)
①, column 219x7500x8.0mm beam: 2-89x4500x6.0mm base flange: 500x500x16mm
②, column 273x7500x8.0mm beam: 2-133x4500x6.0mm base flange: 600x600x20mm
③, column 325x7500x8.0mm beam: 2-159x4500x6.0mm base flange: 700x700x24mm
[Sign board common specifications](5052 alloy)
①, 3000x1500mm ②, 3000x2000mm ③, 4000x2000mm ④, 4000x2200mm ⑤, 4000x2400mm
Aluminum plate: 3.0mm, 2.5mm, 2.0mm, 1.8mm, 1.5mm and so on;
Using reflective film: 3M Diamond Grade (a), 3M super grade (Grade 2) domestic super-class / high-strength grade (three), 3M engineering grade (four)

5052 aluminum performance parameter

5052 aluminum alloy, is a widely used stainless steel alloy plate. 5052 aluminum alloy for the AL-Mg alloy aluminum is the most widely used as a rust-proof aluminum, high strength of this alloy, particularly with anti-fatigue strength: plasticity and high corrosion resistance, heat treatment can not strengthen ,, in half when the plastic is still good work hardening, work hardening at low ductility, good corrosion resistance, good weldability, machinability bad, it can be polished.5052 aluminium checkered plate
Uses Material Name: Aluminum plate and aluminum alloy extruded bars (≤150mm, H112, T6, O state) Features and Scope:
① 5052 belongs to the Al-Mg alloy, using a wide range, especially in the construction industry can not do without this alloy is the most promising alloys. Good corrosion resistance, weldability, cold is good, with moderate intensity. 5052 is the main alloying elements of magnesium, has good forming properties, corrosion resistance, weldability, moderate intensity, for the manufacture of aircraft fuel tanks, fuel lines, and transportation vehicles, ship sheet metal parts, instruments, lights bracket and rivets, metal products, electrical - housing and so on.5052 aluminium plate
② AL-Mn alloy, is the most widely used as a rust-proof aluminum, high strength of this alloy, particularly with anti-fatigue strength: plasticity and high corrosion resistance, heat treatment can enhance plasticity half peening still good, when the plastic work hardening is low, good corrosion resistance, good weldability, machinability bad, can be polished. Mainly used for high plasticity and good weldability, working in a liquid or gaseous medium low load parts, such as mailboxes, gasoline or oil conduit, a variety of liquid containers and other deep drawing making small load parts: wire used to make rivets.aluminum sheet metal 
5052 aluminum sheet is mainly used for purposes that require high plasticity and good weldability, working in a liquid or gaseous medium low load parts, such as mailboxes, gasoline or oil conduit, a variety of liquid containers and other deep drawing making small load parts: wire used to make rivets. Also commonly used in transport vehicles, vessels, sheet metal parts, instruments, lights bracket and rivets, metal products, electrical appliances, such as Shell.