Aluminum extrusion die design and manufacturing costs accounted for about 20% of the total production cost, is the industrial aluminum profiles extrusion are variables, one of the key technology of quick development, involving the material, design, manufacture, testing, repair mold, a lot of link such as management, also is one of development potential of the larger field.

Aluminum extrusion die design and manufacturing costs accounted for about 20% of the total production cost, is the industrial aluminum profiles extrusion are variables, one of the key technology of quick development, involving the material, design, manufacture, testing, repair mold, a lot of link such as management, also is one of development potential of the larger field.

1. Strictly implement rules and regulations on production process of aluminum extrusions

    Must be strictly implemented according to the corresponding aluminium profile extrusion process, the boot process aluminum rod furnace middle temperature setting in 530-550 ℃, the outlet temperature is set in 480-500 ℃, holding time should be enough to ensure that the bar is enough temperature and hearts (i.e., is the core and surface temperature), avoid because of aluminium billet temperature duplicity (lack of core temperature) and make die elastic deformation increases,

exacerbating "partial wall" and "different length" phenomenon occurs, even in the extrusion die plastic deformation and scrap.

2. Make sure the "three heart is one"

     Container center, extrusion rod and visual mold base center must be concentric, there is no obvious phenomenon of eccentric, otherwise it will affect velocity in all parts of the products, and even affect products molding or extrusion products around two length difference is more big to extrusion production.For more than two porous molds, the requirements are more stringent.

3. Reasonable selection of support pads

     It is necessary to select the two holes with proper size and the special support pad of the cantilever, to reduce the elastic deformation of the die, so as to make the extruded product stable and small.Moreover, it is necessary to find the double hole support pad before the mold is out, so as to avoid the mold after the mold is out because it takes too long to find the support pad.Suggest support pad also must be heating temperature control in commonly 350 to 450 ℃.Especially for the complex cross-section and porous series of the opposite sex, it is necessary to choose a reasonable support pad. 

4. Strengthen the information feedback of aluminum extrusion process

(1) information feedback of extrusion die mold

     Plug because there are many kinds of mold, mold processing, for example, knife stuck in empty, empty cutter machining burrs, empty small knife, unreasonable and so on influence of the air knife, and mold design work is unreasonable, with guide plate, such as tap hole it is easy to cause plugging die design is not reasonable, not specially trained people generally difficult to express clearly, best after corresponding repairing mold staff to look after and find out why can talk on mold, repair mold, and put forward the change plan.

(2) feedstock molding situation feedback

    In addition to have the extrusion die number clearly marked head outside, even in the head logo material is difficult to see the overall situation of flow, such as "hand over" material (say, in the actual process of extrusion is two holes inside the lateral slow fast), is "discharge phase" (say, in the actual process of extrusion is two holes inside fast lateral slow), short long "left right" said left A long right branch short, and to indicate the length difference of the amount of, because they saw the distance to the discharging mouth about 6 meters, so usually in the form of A m / 6 m said the length difference of weight for every 6 meters apart A m, so accurate expression to die right judgment and maintenance.

(3) information feedback of the size difference

     Meet discharging molding but normal size out-of-tolerance condition, must take a sample to do the full correct identification number (extrusion die, discharging direction and size of defects, etc.), including any item id mistake may lead to wrong mould, so must pay highly attention to.Accurate material samples are best included (in front and back).

     Given all this, the above four measures roughly use aluminum extrusion mold to improve the qualified rate, reduce the cost of extrusion, decrease The Times of mould computer, of course, still have to according to the actual situation, specific analysis of aluminum material situation, make a reasonable judgment, it also with each of the die trim method also has a great relationship, design and processing is most important, of course, the mold has been forming, die cutting fixed decided to mold the number of computer, computer information feedback is very important, so, of course, also have to believe in your judgment, seize the accuracy of the material, believe in your ability, the stage is how to solve the problem!