cast iron welding wire

Because cast iron welding high carbon content , inhomogeneity , low intensity, poor plasticity , belonging to poor weldability of the material , the welding process can easily produceHealth crack ; cooling rate after welding fast, easy to produce white tissue, causing Cutting difficult. Welding andAluminium Welding Wire g of cast iron , to achieve satisfactory results, you must pay attention to "one-third material , seven craft " , not only toSelect the electrode, and the use of suitable welding method is particularly important.We recommend the following welding process, welding and repair welding of cast iron as a reference : 1, first clear the welded parts of the sludge, sand , water, rust and other dirt ; for a long period of high temperature steam iron castings working environment , but alsoTo clear the surface of the carbon layer and the oxide layer is depleted .2, according to the shape of the welded parts , defect type , for open groove , playing pool for the hole and modeling, and other preparatory measures .3 , the need for cold welding of the workpiece, preheated 500-600 ℃ or so, choose the appropriate current , continuous welding , the welding procedure remains the pre-Hot temperatures , immediately after welding powder Aluminum Flux Core Welding Wire insulation materials , allowed Slow cooling , in order to improve their crack resistance and processability . 4, for cold welding workpiece to prevent excessive base metal melting , chilling tendency to reduce and prevent excessive heat concentration , causing too much stress , should beLow current , short arc welding narrow channel ( each bead length is generally No more than 50mm). Immediately after welding, hammering the weld to prevent cracking stress relaxation , the temperature dropped to below 60 ℃ and then welded one .5 , when the attention crater crater fill , to prevent cracking at the closing arc var addthis_config = {"data_track_addressbar":true};

1 , before welding it is necessary to make the appropriate surface cleaning of welded joints is best oblique cut a U-shaped groove .2, the only hole to play at both ends of the crack Aluminium Alloy Welding Wire expansion of cracks during welding .3 , repair bad angle , you can choose WE100 cold welding to form an effective U- slotted or V-shaped groove.4 , the welding current as small as possible , medium arc length , slightly tilted to the welding direction .5 , the proposed use of the weld bead short , thin and narrow lateral swinging torch , welding before stopping to fill the crater , usually carried out withoutHeat treatment, allow the parts to cool down slowly . var addthis_config = {"data_track_addressbar":true};

the use of cast iron electrode MattersSoldering iron mainly in Copper Welding Electrode ways to control : control of carbon , the elimination of stress , structural adjustments. You can use a good number of welding materialMaterials, such as WE777 welding materials and other imports . They crack resistance Are good. In addition , the structure can be taken to mend process , to increase the stability of welding effect var addthis_config = {"data_track_addressbar":true};

Mass fraction is greater than 2.14% of the Fe-C alloys. In fact industrial cast iron is generally Fe-C-Si -based alloy. Carbon in cast iron is usually in accordanceThe distribution of iron in the form Aluminum Flux Core Welding Wire of classification, can be divided into white cast iron, Gray iron, ductile iron, compacted graphite cast iron and malleable iron . Because cast iron with high carbon content , organization inequality, low plasticity ,weldability poor inWelding process can easily produce white , cracks and holes and other defects in the Welding should pay special attention welding technology and welding materials used . var addthis_config = {"data_track_addressbar":true};