The manufacture method of aluminium bar
Technical field
The present invention relates to a kind of manufacture method of aluminium bar.
Background technology
Present employed aluminium bar adopts milling train to be rolled during fabrication usually and forms, and the blank after rolling need carry out drawing and make its rounding, and then clean owing to have corner angle, adopts alkali cleaning or rinsing during cleaning usually, and then dries.The shortcoming of above-mentioned manufacture method is: whole manufacturing step is more loaded down with trivial details, and the roundness of prepared aluminium bar can not be guaranteed.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of step fairly simple and can guarantee the manufacture method of aluminium bar of the roundness of prepared aluminium bar.
For addressing the above problem, the technical solution used in the present invention is: the manufacture method of aluminium bar comprises the steps:
Prestretching undergauge: at first aluminium bar wire rod is carried out pre-drawing 0.5~2.5mm, obtain the high aluminium bar wire rod of out of roundness, make the difference that requires size of the diameter of aluminium bar wire rod after the pre-drawing and final finished between 0.2~0.5mm;
Finish draw sizing: the aluminium bar wire rod behind the prestretching undergauge is carried out finish draw 0.1~0.3mm sizing, make the difference that requires size of the diameter of aluminium bar wire rod behind the finish draw sizing and final finished between 0.04~0.4mm;
The surface peeling: the aluminium bar wire rod behind the finish draw sizing is carried out peeling, adopt the circular hole peeling mode during peeling, the aperture of peeling mode is corresponding with the size of required processing, and the peeling thickness range remains between 0.02~0.2mm; Rotating shredding mechanism simultaneously smashes the metal skin of peeling off the back, falls into retracting device;
Rolling: adopt inverted winder that peeling power is provided, and the aluminium bar wire rod after the peeling is carried out rolling.
In the described surperficial peeling step, when peeling, the aluminium skin that peels is smashed processing.
In the described surperficial peeling step, the traction power when peeling is provided by winder.
In the described rolling step, adopt the handstand winder to carry out rolling.
Described aluminium bar raw material is fine aluminium bar or magnalium bar.
The invention has the beneficial effects as follows: the manufacture method of above-mentioned aluminium bar, its step is simple, easy and simple to handle, efficient is higher, it adopts drawing undergauge step by step, the finish draw sizing, the continuous processing mode of peeling, not only realized big processing capacity prestretching, the aluminium bar wire rod out of roundness that makes behind little processing capacity finish draw sizing is better again, and the external diameter of the aluminium bar wire rod that obtains is also more accurate, thereby can further accurately control the thin as far as possible of peeling, simultaneously can save more metal with the aluminium bar wire rod that obtains the appearance cleaning, this manufacture method also can be used for other wire shaft, the manufacturing of metal pipe material.
Description of drawings
Fig. 1 is flowage structure schematic diagram of the present invention;
Among the figure: 1, discharging frame, 2, the pre-machine drawing of aluminium bar, 3, the finish draw plug die, 4, peeling machine, 5, the handstand winder.
The specific embodiment
Be described in further detail below by the manufacture method of specific embodiment to aluminium bar of the present invention.
As shown in Figure 1, the manufacture method of aluminium bar comprises the steps:
Prestretching undergauge: at first aluminium bar raw material is placed on the discharging frame 1, described aluminium bar raw material can adopt fine aluminium bar or magnalium bar, carry out pre-drawing 0.5~2.5mm by 2 pairs of aluminium bars of the pre-machine drawing of aluminium bar raw material, obtain the high aluminium bar wire rod of out of roundness, make the difference that requires diameter dimension of the diameter of aluminium bar after the pre-drawing and final finished between 0.2~0.5mm, when pre-drawing, realize lubricated and cool off by cooling device for lubricating oil;
Finish draw sizing: the aluminium bar wire rod behind the prestretching undergauge is carried out finish draw 0.1~0.3mm sizing by finish draw plug die 3, make the difference that requires diameter dimension of the diameter of aluminium bar behind the finish draw sizing and final finished between 0.04~0.4mm, when the finish draw sizing, realize lubricating and cooling off by cooling device for lubricating oil; By the finish draw sizing: the one, accurate sizing prevents that peeling is unclear very little, but also material-saving; The 2nd, prevent that the aluminium shank diameter behind the sizing is excessive, waste material is increased, and be easy to generate peeling time stripping is motionless and cause the aluminium bar to be broken;
Surface peeling: the aluminium bar wire rod behind the finish draw sizing is carried out peeling, adopt peeling machine 4 during peeling, the aperture of its circular hole peeling mode requires diameter dimension corresponding with final finished, peeling thickness remains between 0.02~0.2mm, not only can remove metal oxide and the greasy dirt of aluminium bar wire surface completely, and with the peeling of aluminium bar wire rod to desired specification; When peeling, adopt the rotation shredding mechanism that the metal skin that peels is smashed processing, because aluminium skin toughness is higher, be difficult for brokenly voluntarily, to fall into peeling machine 4 stuck with the aluminium bar so need in addition its fragmentation is abandoned it;
Rolling: adopt handstand winder 5 that the aluminium bar after the peeling is carried out rolling.
In the described peeling step, the traction power when peeling is provided by handstand winder 5.
The manufacture method of above-mentioned aluminium bar, its step is simple, easy and simple to handle, efficient is higher, it adopts the continuous processing mode of drawing undergauge, finish draw sizing, peeling step by step, realized that not only big processing capacity prestretching, the aluminium bar wire rod out of roundness that makes behind little processing capacity finish draw sizing again are better, and the external diameter of the aluminium bar wire rod that obtains is also more accurate, thereby can further accurately control the thin as far as possible of peeling, simultaneously can save more metal with the aluminium bar wire rod that obtains the appearance cleaning, this manufacture method also can be used for the manufacturing of other wire shaft, metal pipe material.
The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used for restriction the present invention; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.