阅读说明：本技术 一种刀片电池型材用6060a-t5材料及其加工工艺 (6060A-T5 material for blade battery profile and processing technology thereof ) 是由 陶诚 黎家富 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种刀片电池型材用6060A-T5材料及其加工工艺,配方包括：硅、铁、铜、锰、铬、锌、钛、镁、锆以及余量的铝,各组分的质量百分比分别是：0.3-0.6％的硅、0.1-0.3％的铁、0.08-0.12％的铜、0.08-0.12％的锰、0.03-0.05％的铬、0.14-0.16％的锌、0.09-0.11％的钛、0.03-0.05％的镁、0.01-0.02％的锆以及余量的铝,且各组分的质量百分比之和为100％；该发明,通过采用热挤压的方式对型材进行生产,改变了传统中制备型材的工艺,减少了在制备的过程中对型材进行精抽和清洗的步骤,进而避免了型材出现撕裂和拉断的现象发生,同时降低了生产成本,以及提高了工作效率,同时在对型材进行热处理的过程中,有利于通过调节冷却速率调节型材的硬度和强度,易满足不同客户的需求,从而扩大了该装置的适用范围。(The invention discloses a 6060A-T5 material for blade battery section bar and a processing technique thereof, the formula comprises: the alloy comprises silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium, zirconium and the balance of aluminum, and the mass percentages of the components are as follows: 0.3 to 0.6 percent of silicon, 0.1 to 0.3 percent of iron, 0.08 to 0.12 percent of copper, 0.08 to 0.12 percent of manganese, 0.03 to 0.05 percent of chromium, 0.14 to 0.16 percent of zinc, 0.09 to 0.11 percent of titanium, 0.03 to 0.05 percent of magnesium, 0.01 to 0.02 percent of zirconium and the balance of aluminum, and the sum of the mass percentages of the components is 100 percent; according to the invention, the section is produced by adopting a hot extrusion mode, the traditional process for preparing the section is changed, the steps of fine pumping and cleaning the section in the preparation process are reduced, the phenomena of tearing and snapping of the section are avoided, the production cost is reduced, the working efficiency is improved, and meanwhile, the hardness and the strength of the section are adjusted by adjusting the cooling rate in the heat treatment process of the section, so that the requirements of different customers are easily met, and the application range of the device is expanded.)

1. A6060A-T5 material for blade battery profiles is prepared from the following components in percentage by weight: silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium, zirconium and the balance of aluminum, and is characterized in that: the weight percentages of the components are respectively as follows: 0.3 to 0.6 percent of silicon, 0.1 to 0.3 percent of iron, 0.08 to 0.12 percent of copper, 0.08 to 0.12 percent of manganese, 0.03 to 0.05 percent of chromium, 0.14 to 0.16 percent of zinc, 0.09 to 0.11 percent of titanium, 0.03 to 0.05 percent of magnesium, 0.01 to 0.02 percent of zirconium and the balance of aluminum, and the sum of the mass percentages of the components is 100 percent.

2. The 6060A-T5 material for blade battery profiles as claimed in claim 1, wherein: the aluminum is an aluminum ingot for remelting, and the purity of the aluminum in the aluminum ingot for remelting is 99.9%.

3. A processing technology of 6060A-T5 material for blade battery profiles comprises the following steps: selecting raw materials; step two, ingot casting heating; step three, extruding; step four, online heat treatment; step five, stretching on line; step six, cutting to length; step seven, artificial aging; step eight, checking and accepting; step nine, packaging; the method is characterized in that:

in the first step, firstly, 0.3-0.6% of silicon, 0.1-0.3% of iron, 0.08-0.12% of copper, 0.08-0.12% of manganese, 0.03-0.05% of chromium, 0.14-0.16% of zinc, 0.09-0.11% of titanium, 0.03-0.05% of magnesium, 0.01-0.02% of zirconium and the balance of aluminum are weighed respectively according to the mass percentage of each component for standby, and meanwhile, the sum of the mass percentages of the components is 100%;

removing the covering film wrapped by the aluminum weighed in the step one, then placing the aluminum with the covering film removed and the iron and zinc weighed in the step one into a smelting furnace for smelting, scattering a certain amount of slag-striking agent on the surface of the melt when the melt in the smelting furnace reaches the smelting temperature, then carrying out slag-off treatment, adding the silicon, copper, manganese, chromium, titanium, magnesium and zirconium weighed in the step one after the slag-off is finished, then fully stirring the melt in the smelting furnace to smelt all solids in the smelting furnace into a melt, then carrying out initial refining treatment according to a conventional method, and placing the melt after degassing refining into a mold for casting treatment to obtain a cast body;

in the third step, the casting body obtained in the second step is heated to 510-530 ℃, the temperature of the extrusion cylinder is adjusted to 430-450 ℃, the heating temperature of the die is 460-500 ℃, then the extrusion treatment can be carried out on the thick casting body to obtain the extrusion body, the extrusion speed is 2.2-2.8m/min, and the temperature of the extrusion outlet is controlled to 480-510 ℃;

in the fourth step, the extruded body obtained in the third step is cooled and quenched by forced air cooling or water mist cooling, and the temperature of the quenched extruded body is reduced to the normal temperature to 100 ℃;

in the fifth step, the extruded body processed in the fourth step is subjected to stretching and straightening treatment to obtain a stretched body;

in the sixth step, the stretched body obtained in the fifth step is cut according to the required size to obtain a cut body;

in the seventh step, the cutting body obtained in the sixth step is subjected to artificial aging treatment to obtain a semi-finished product;

in the eighth step, the semi-finished product obtained in the seventh step is subjected to acceptance treatment according to the performance and the size of the required product;

and in the ninth step, performing film-covering packaging treatment on the semi-finished product checked and accepted in the eighth step to obtain a finished product.

4. The processing technology of 6060A-T5 material for blade battery profiles as claimed in claim 3, wherein: in the first step, the weighed aluminum is subjected to film covering and vacuum treatment by using a plastic packaging film in the follow-up preparation and production process, meanwhile, in the process of weighing the aluminum, the mass of a covering film wrapped in the aluminum needs to be removed, the covering film is made of PE or PVC, the thickness of the covering film is 0.04-0.06mm, and the weighed silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium and zirconium are subjected to oxygen isolation treatment in a vacuum mode.

5. The processing technology of 6060A-T5 material for blade battery profiles as claimed in claim 3, wherein: in the second step, the temperature of the smelting furnace is 730-750 ℃.

6. The processing technology of 6060A-T5 material for blade battery profiles as claimed in claim 3, wherein: and in the fourth step, the extrusion body is cooled by utilizing forced air cooling or water mist cooling, so that the cooling rate is convenient to adjust according to the cooling rate of the extrusion body, and the cooling rate is 40-80 ℃/min when the extrusion body is cooled by utilizing the forced air cooling or water mist cooling.

7. The processing technology of 6060A-T5 material for blade battery profiles as claimed in claim 3, wherein: in the fifth step, the stretching rate of the stretching straightening is 0.8-1.5%.

8. The processing technology of 6060A-T5 material for blade battery profiles as claimed in claim 3, wherein: in the seventh step, the temperature of the first stage of the artificial aging treatment is 140 ℃ plus 130 ℃, the heat preservation time is 2.5-3.5h, the temperature of the second stage is 180 ℃ plus 170 ℃, and the heat preservation time is 6-7 h.

Technical Field

The invention relates to the technical field of processing of sectional materials for blade batteries, in particular to a 6060A-T5 material for blade battery sectional materials and a processing technology thereof.

Background

A device in which the battery can convert chemical energy into electrical energy. The battery is used as an energy source, can obtain current with stable voltage, stable current, long-time stable power supply and little influence from the outside, has simple structure, convenient carrying, simple and easy charging and discharging operation, is not influenced by the outside climate and temperature, has stable and reliable performance, plays a great role in various aspects of modern social life, simultaneously has wider and wider application range along with the appearance of new energy automobiles, and more types of batteries, wherein the battery comprises a blade battery The profile material prepared by the method needs secondary fine drawing, but the deformation degree of the fine drawing is not easy to control in the fine drawing process, the phenomena of profile tearing and snapping easily occur, and meanwhile, in the profile cleaning process, a large amount of drawing lubricating oil is used for smoothly performing the fine drawing process on the profile surface, the lubricating oil remains on the profile surface, so that the difficulty degree of subsequent cleaning is increased, the prepared profile has low hardness, the use requirements are not easily met, the use range is reduced, and therefore the 6060A-T5 material for the blade battery profile and the processing process thereof are necessary.

Disclosure of Invention

The invention aims to provide a 6060A-T5 material for blade battery profiles and a processing technology thereof, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: A6060A-T5 material for blade battery profiles is prepared from the following components in percentage by weight: the alloy comprises silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium, zirconium and the balance of aluminum, and the mass percentages of the components are as follows: 0.3 to 0.6 percent of silicon, 0.1 to 0.3 percent of iron, 0.08 to 0.12 percent of copper, 0.08 to 0.12 percent of manganese, 0.03 to 0.05 percent of chromium, 0.14 to 0.16 percent of zinc, 0.09 to 0.11 percent of titanium, 0.03 to 0.05 percent of magnesium, 0.01 to 0.02 percent of zirconium and the balance of aluminum, and the sum of the mass percentages of the components is 100 percent.

Preferably, the aluminum is an aluminum ingot for remelting, and the purity of the aluminum in the aluminum ingot for remelting is 99.9%.

A processing technology of 6060A-T5 material for blade battery profiles comprises the following steps: selecting raw materials; step two, ingot casting heating; step three, extruding; step four, online heat treatment; step five, stretching on line; step six, cutting to length; step seven, artificial aging; step eight, checking and accepting; step nine, packaging;

in the first step, firstly, 0.3-0.6% of silicon, 0.1-0.3% of iron, 0.08-0.12% of copper, 0.08-0.12% of manganese, 0.03-0.05% of chromium, 0.14-0.16% of zinc, 0.09-0.11% of titanium, 0.03-0.05% of magnesium, 0.01-0.02% of zirconium and the balance of aluminum are weighed respectively according to the mass percentage of each component for standby, and meanwhile, the sum of the mass percentages of the components is 100%;

removing the covering film wrapped by the aluminum weighed in the step one, then placing the aluminum with the covering film removed and the iron and zinc weighed in the step one into a smelting furnace for smelting, scattering a certain amount of slag-striking agent on the surface of the melt when the melt in the smelting furnace reaches the smelting temperature, then carrying out slag-off treatment, adding the silicon, copper, manganese, chromium, titanium, magnesium and zirconium weighed in the step one after the slag-off is finished, then fully stirring the melt in the smelting furnace to smelt all solids in the smelting furnace into a melt, then carrying out initial refining treatment according to a conventional method, and placing the melt after degassing refining into a mold for casting treatment to obtain a cast body;

in the third step, the casting body obtained in the second step is heated to 510-530 ℃, the temperature of the extrusion cylinder is adjusted to 430-450 ℃, the heating temperature of the die is 460-500 ℃, then the extrusion treatment can be carried out on the thick casting body to obtain the extrusion body, the extrusion speed is 2.2-2.8m/min, and the temperature of the extrusion outlet is controlled to 480-510 ℃;

in the fourth step, the extruded body obtained in the third step is cooled and quenched by forced air cooling or water mist cooling, and the temperature of the quenched extruded body is reduced to the normal temperature to 100 ℃;

in the fifth step, the extruded body processed in the fourth step is subjected to stretching and straightening treatment to obtain a stretched body;

in the sixth step, the stretched body obtained in the fifth step is cut according to the required size to obtain a cut body;

in the seventh step, the cutting body obtained in the sixth step is subjected to artificial aging treatment to obtain a semi-finished product;

in the eighth step, the semi-finished product obtained in the seventh step is subjected to acceptance treatment according to the performance and the size of the required product;

and in the ninth step, performing film-covering packaging treatment on the semi-finished product checked and accepted in the eighth step to obtain a finished product.

Preferably, in the first step, the weighed aluminum is subjected to film covering and vacuum treatment by using a plastic packaging film in the subsequent preparation and production process, meanwhile, in the process of weighing the aluminum, the quality of a covering film wrapped in the aluminum needs to be removed, the covering film is made of PE or PVC, the thickness of the covering film is 0.04-0.06mm, and the weighed silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium and zirconium are subjected to oxygen insulating treatment in a vacuum mode.

Preferably, in the second step, the temperature of the smelting furnace is 730-750 ℃.

Preferably, in the fourth step, the extrusion body is cooled by forced air cooling or water mist cooling, so that the cooling rate can be conveniently adjusted according to the cooling rate of the extrusion body, and the cooling rate is 40-80 ℃/min when the extrusion body is cooled by the forced air cooling or the water mist cooling.

Preferably, in the fifth step, the stretching rate of the stretching straightening is 0.8-1.5%.

Preferably, in the seventh step, the temperature of the first stage of the artificial aging treatment is 130-.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the section is produced by adopting a hot extrusion mode, the process for preparing the section in the traditional process is changed, the steps of fine pumping and cleaning the section are reduced in the preparation process, the formula of the raw material for preparing the section in the traditional process is changed, so that the phenomena of tearing and breaking of the section are avoided, the steps for preparing the section are reduced, the production cost is reduced, the working efficiency is improved, and meanwhile, in the process of carrying out heat treatment on the section, the hardness and the strength of the section can be adjusted by adjusting the cooling rate, the requirements of different customers can be easily met, and the application range of the device is expanded.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention:

example 1:

A6060A-T5 material for blade battery profiles is prepared from the following components in percentage by weight: the alloy comprises silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium, zirconium and the balance of aluminum, and the mass percentages of the components are as follows: 0.3% of silicon, 0.1% of iron, 0.08% of copper, 0.08% of manganese, 0.03% of chromium, 0.14-% of zinc, 0.09% of titanium, 0.03% of magnesium, 0.01% of zirconium and the balance of aluminum, wherein the sum of the mass percentages of the components is 100%, the aluminum is an aluminum ingot for remelting, and the purity of the aluminum in the aluminum ingot for remelting is 99.9%.

A processing technology of 6060A-T5 material for blade battery profiles comprises the following steps: selecting raw materials; step two, ingot casting heating; step three, extruding; step four, online heat treatment; step five, stretching on line; step six, cutting to length; step seven, artificial aging; step eight, checking and accepting; step nine, packaging;

in the first step, firstly, 0.3% of silicon, 0.1% of iron, 0.08% of copper, 0.08% of manganese, 0.03% of chromium, 0.14-% of zinc, 0.09% of titanium, 0.03% of magnesium, 0.01% of zirconium and the balance of aluminum are weighed according to the mass percentage for standby, meanwhile, the sum of the mass percentages of the components is 100%, a plastic sealing film is used for carrying out film covering and vacuum treatment on the aluminum after the weighed aluminum is prepared and produced, meanwhile, in the process of weighing the aluminum, the mass of a covering film wrapped in the aluminum needs to be removed, meanwhile, the material of the covering film is PE or PVC, meanwhile, the thickness of the covering film is 0.04mm, and meanwhile, the weighed silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium and zirconium are subjected to oxygen isolation treatment in a vacuum mode;

removing the covering film wrapped by the aluminum weighed in the step one, then placing the aluminum with the covering film removed and the iron and zinc weighed in the step one into a smelting furnace for smelting, wherein the temperature of the smelting furnace is 730 ℃, when the melt in the smelting furnace reaches the smelting temperature, scattering a certain amount of slag-removing agent on the surface of the melt, then carrying out slag-removing treatment, after the slag-removing is finished, adding the silicon, copper, manganese, chromium, titanium, magnesium and zirconium weighed in the step one, then fully stirring the melt in the smelting furnace to completely smelt the solid in the smelting furnace into a melt, then carrying out initial refining treatment according to a conventional method, and placing the melt after degassing refining into a mold for casting treatment to obtain a cast body;

in the third step, the casting body obtained in the second step is heated to 510 ℃, the temperature of an extrusion cylinder is regulated to 430 ℃, the heating temperature of a die is 460 ℃, then the thick casting body can be extruded to obtain an extrusion body, the extrusion speed is 2.2m/min, and the temperature of an extrusion outlet is controlled to 480 ℃;

in the fourth step, the extruded body obtained in the third step is cooled and quenched by forced air cooling or water mist cooling, the temperature of the quenched extruded body is reduced to the normal temperature to 100 ℃, meanwhile, the extruded body is cooled by the forced air cooling or the water mist cooling, the cooling rate is conveniently adjusted according to the cooling rate of the extruded body, and the cooling rate is 40-80 ℃/min when the extruded body is cooled by the forced air cooling or the water mist cooling;

in the fifth step, the extruded body processed in the fourth step is subjected to stretching straightening treatment to obtain a stretched body, and the stretching rate of the stretching straightening is 0.8%;

in the sixth step, the stretched body obtained in the fifth step is cut according to the required size to obtain a cut body;

in the seventh step, the cutting body obtained in the sixth step is subjected to artificial aging treatment to obtain a semi-finished product, the temperature of the first stage of the artificial aging treatment is 130 ℃, the heat preservation time is 2.5 hours, the temperature of the second stage is 170 ℃, and the heat preservation time is 6 hours;

in the eighth step, the semi-finished product obtained in the seventh step is subjected to acceptance treatment according to the performance and the size of the required product;

and in the ninth step, performing film-covering packaging treatment on the semi-finished product checked and accepted in the eighth step to obtain a finished product.

Example 2:

A6060A-T5 material for blade battery profiles is prepared from the following components in percentage by weight: the alloy comprises silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium, zirconium and the balance of aluminum, and the mass percentages of the components are as follows: 0.6 percent of silicon, 0.3 percent of iron, 0.12 percent of copper, 0.12 percent of manganese, 0.05 percent of chromium, 0.16 percent of zinc, 0.11 percent of titanium, 0.05 percent of magnesium, 0.02 percent of zirconium and the balance of aluminum, wherein the sum of the mass percentages of the components is 100 percent, the aluminum is an aluminum ingot for remelting, and the purity of the aluminum in the aluminum ingot for remelting is 99.9 percent.

A processing technology of 6060A-T5 material for blade battery profiles comprises the following steps: selecting raw materials; step two, ingot casting heating; step three, extruding; step four, online heat treatment; step five, stretching on line; step six, cutting to length; step seven, artificial aging; step eight, checking and accepting; step nine, packaging;

in the first step, firstly, 0.6% of silicon, 0.3% of iron, 0.12% of copper, 0.12% of manganese, 0.05% of chromium, 0.16% of zinc, 0.11% of titanium, 0.05% of magnesium, 0.02% of zirconium and the balance of aluminum are weighed according to the mass percentage for standby, meanwhile, the sum of the mass percentages of the components is 100%, a plastic sealing film is used for carrying out film covering and vacuum treatment on the aluminum after the weighed aluminum is prepared and produced, meanwhile, in the process of weighing the aluminum, the mass of a covering film wrapped in the aluminum needs to be removed, meanwhile, the covering film is made of PE or PVC, meanwhile, the thickness of the covering film is 0.04mm, and meanwhile, the weighed silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium and zirconium are subjected to oxygen isolation treatment in a vacuum mode;

removing the covering film wrapped by the aluminum weighed in the step one, then placing the aluminum with the covering film removed and the iron and zinc weighed in the step one into a smelting furnace for smelting, wherein the temperature of the smelting furnace is 730 ℃, when the melt in the smelting furnace reaches the smelting temperature, scattering a certain amount of slag-removing agent on the surface of the melt, then carrying out slag-removing treatment, after the slag-removing is finished, adding the silicon, copper, manganese, chromium, titanium, magnesium and zirconium weighed in the step one, then fully stirring the melt in the smelting furnace to completely smelt the solid in the smelting furnace into a melt, then carrying out initial refining treatment according to a conventional method, and placing the melt after degassing refining into a mold for casting treatment to obtain a cast body;

in the third step, the casting body obtained in the second step is heated to 510 ℃, the temperature of an extrusion cylinder is regulated to 430 ℃, the heating temperature of a die is 460 ℃, then the thick casting body can be extruded to obtain an extrusion body, the extrusion speed is 2.2m/min, and the temperature of an extrusion outlet is controlled to 480 ℃;

in the fourth step, the extruded body obtained in the third step is cooled and quenched by forced air cooling or water mist cooling, the temperature of the quenched extruded body is reduced to the normal temperature to 100 ℃, meanwhile, the extruded body is cooled by the forced air cooling or the water mist cooling, the cooling rate is conveniently adjusted according to the cooling rate of the extruded body, and the cooling rate is 40-80 ℃/min when the extruded body is cooled by the forced air cooling or the water mist cooling;

in the fifth step, the extruded body processed in the fourth step is subjected to stretching straightening treatment to obtain a stretched body, and the stretching rate of the stretching straightening is 0.8%;

in the sixth step, the stretched body obtained in the fifth step is cut according to the required size to obtain a cut body;

in the seventh step, the cutting body obtained in the sixth step is subjected to artificial aging treatment to obtain a semi-finished product, the temperature of the first stage of the artificial aging treatment is 130 ℃, the heat preservation time is 2.5 hours, the temperature of the second stage is 170 ℃, and the heat preservation time is 6 hours;

in the eighth step, the semi-finished product obtained in the seventh step is subjected to acceptance treatment according to the performance and the size of the required product;

and in the ninth step, performing film-covering packaging treatment on the semi-finished product checked and accepted in the eighth step to obtain a finished product.

Example 3:

A6060A-T5 material for blade battery profiles is prepared from the following components in percentage by weight: the alloy comprises silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium, zirconium and the balance of aluminum, and the mass percentages of the components are as follows: 0.4% of silicon, 0.2% of iron, 0.10% of copper, 0.10% of manganese, 0.05% of chromium, 0.15% of zinc, 0.10% of titanium, 0.04% of magnesium, 0.01% of zirconium and the balance of aluminum, wherein the sum of the mass percentages of the components is 100%, the aluminum is an aluminum ingot for remelting, and the purity of the aluminum in the aluminum ingot for remelting is 99.9%.

A processing technology of 6060A-T5 material for blade battery profiles comprises the following steps: selecting raw materials; step two, ingot casting heating; step three, extruding; step four, online heat treatment; step five, stretching on line; step six, cutting to length; step seven, artificial aging; step eight, checking and accepting; step nine, packaging;

in the first step, firstly, 0.4% of silicon, 0.2% of iron, 0.10% of copper, 0.10% of manganese, 0.05% of chromium, 0.15% of zinc, 0.10% of titanium, 0.04% of magnesium, 0.01% of zirconium and the balance of aluminum are weighed according to the mass percentage for standby, meanwhile, the sum of the mass percentages of the components is 100%, a plastic sealing film is used for carrying out film covering and vacuum treatment on the aluminum after the weighed aluminum is prepared and produced, meanwhile, in the process of weighing the aluminum, the mass of a covering film wrapped in the aluminum needs to be removed, meanwhile, the covering film is made of PE or PVC, meanwhile, the thickness of the covering film is 0.04mm, and meanwhile, the weighed silicon, iron, copper, manganese, chromium, zinc, titanium, magnesium and zirconium are subjected to oxygen isolation treatment in a vacuum mode;

removing the covering film wrapped by the aluminum weighed in the step one, then placing the aluminum with the covering film removed and the iron and zinc weighed in the step one into a smelting furnace for smelting, wherein the temperature of the smelting furnace is 730 ℃, when the melt in the smelting furnace reaches the smelting temperature, scattering a certain amount of slag-removing agent on the surface of the melt, then carrying out slag-removing treatment, after the slag-removing is finished, adding the silicon, copper, manganese, chromium, titanium, magnesium and zirconium weighed in the step one, then fully stirring the melt in the smelting furnace to completely smelt the solid in the smelting furnace into a melt, then carrying out initial refining treatment according to a conventional method, and placing the melt after degassing refining into a mold for casting treatment to obtain a cast body;

in the third step, the casting body obtained in the second step is heated to 510 ℃, the temperature of an extrusion cylinder is regulated to 430 ℃, the heating temperature of a die is 460 ℃, then the thick casting body can be extruded to obtain an extrusion body, the extrusion speed is 2.2m/min, and the temperature of an extrusion outlet is controlled to 480 ℃;

in the fourth step, the extruded body obtained in the third step is cooled and quenched by forced air cooling or water mist cooling, the temperature of the quenched extruded body is reduced to the normal temperature to 100 ℃, meanwhile, the extruded body is cooled by the forced air cooling or the water mist cooling, the cooling rate is conveniently adjusted according to the cooling rate of the extruded body, and the cooling rate is 40-80 ℃/min when the extruded body is cooled by the forced air cooling or the water mist cooling;

in the fifth step, the extruded body processed in the fourth step is subjected to stretching straightening treatment to obtain a stretched body, and the stretching rate of the stretching straightening is 0.8%;

in the sixth step, the stretched body obtained in the fifth step is cut according to the required size to obtain a cut body;

in the seventh step, the cutting body obtained in the sixth step is subjected to artificial aging treatment to obtain a semi-finished product, the temperature of the first stage of the artificial aging treatment is 130 ℃, the heat preservation time is 2.5 hours, the temperature of the second stage is 170 ℃, and the heat preservation time is 6 hours;

in the eighth step, the semi-finished product obtained in the seventh step is subjected to acceptance treatment according to the performance and the size of the required product;

and in the ninth step, performing film-covering packaging treatment on the semi-finished product checked and accepted in the eighth step to obtain a finished product.

The finished profiles of the above examples were tested separately and the results are shown in the following table:

based on the above, the invention has the advantages that the formula and the processing technology for preparing the section bar in the traditional technology are changed, the section bar is processed by adopting the mature hot processing technology without the production technology of precise pumping and cleaning, so that the difficulty degree of preparing the section bar is increased due to the fact that lubricating oil is remained on the section bar, the processing step for preparing the section bar is shortened, the production cost for preparing the section bar is reduced, the production period for preparing the section bar is shortened, the working efficiency for preparing the section bar is improved, and in the process for preparing the section bar, the strength and the hardness of the prepared section bar can be adjusted conveniently according to the requirements of customers by adjusting the cooling rate to carry out heat treatment on the section bar.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.