阅读说明：本技术 高性能变速器箱体铝合金 (High-performance transmission box aluminum alloy ) 是由 冉志刚 张超 于 2020-12-30 设计创作，主要内容包括：本发明涉及金属材料领域,具体公开了高性能变速器箱体铝合金,铝合金包括硅、铜、锰、镁、铁、锌、镍、锡、铅、钛和铝,铝合金包括4-5.8wt％的铜、0.3-0.7wt％的镁以及93.5-95.7wt％的硅、铜、锰、镁、铁、锌、镍、锡和铝。本方案通过对铜和镁含量的控制,能够有效的调整铝合金的硬度值和抗拉强度值,在采用以上组份的铝合金对变速器箱体进行制造后,变速器箱体的抗拉强度值达到245-253MPa,硬度达到104-106HB,有效的提升了变速器箱体的性能。(The invention relates to the field of metal materials, and particularly discloses a high-performance transmission box aluminum alloy which comprises 4-5.8 wt% of copper, 0.3-0.7 wt% of magnesium and 93.5-95.7 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum. According to the scheme, the hardness value and the tensile strength value of the aluminum alloy can be effectively adjusted by controlling the contents of copper and magnesium, after the transmission box body is manufactured by adopting the aluminum alloy with the components, the tensile strength value of the transmission box body reaches 245-plus-253 MPa, the hardness reaches 104-plus-106 HB, and the performance of the transmission box body is effectively improved.)

1. The high-performance transmission box aluminum alloy comprises silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, lead, titanium and aluminum, and is characterized in that the aluminum alloy comprises 4-5.8 wt% of copper, 0.3-0.7 wt% of magnesium and 93.5-95.7 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum.

2. The high performance transmission case aluminum alloy of claim 1, wherein the 93.5-95.7 wt.% silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, and aluminum comprises 8-11 wt.% silicon, less than 0.6 wt.% manganese, less than 1.5 wt.% iron, less than 0.6 wt.% nickel, less than 4 wt.% zinc, less than 0.42 wt.% tin, and the balance aluminum.

3. The high performance transmission case aluminum alloy of claim 2, wherein the aluminum alloy comprises 4.5-5.6 wt.% copper, 0.35-0.65 wt.% magnesium, and 93.75-95.15 wt.% silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, and aluminum.

4. The high performance transmission case aluminum alloy of claim 3, wherein the 93.9-94.6 wt.% silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, and aluminum comprises 8.5-10.5 wt.% silicon, less than 0.55 wt.% manganese, less than 1.4 wt.% iron, less than 0.55 wt.% nickel, less than 3.5 wt.% zinc, less than 0.40 wt.% tin, and the balance aluminum.

5. The high performance transmission case aluminum alloy of claim 4, wherein the aluminum alloy comprises 5-5.5 wt.% copper, 0.4-0.6 wt.% magnesium, and 93.9-94.6 wt.% silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, and aluminum.

6. The high performance transmission case aluminum alloy of claim 5, wherein the 93.9-94.6 wt.% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, and aluminum comprises 9-10 wt.% of silicon, less than 0.5 wt.% of manganese, less than 1.3 wt.% of iron, less than 0.5 wt.% of nickel, less than 3 wt.% of zinc, less than 0.35 wt.% of tin, and the balance aluminum.

Technical Field

The invention belongs to the field of metal materials, and particularly relates to a high-performance transmission box aluminum alloy.

Background

The transmission case body has irregular and complex appearance, so the transmission case body is generally formed by aluminum alloy through die casting of a special die, and the transmission case body made of the aluminum alloy has the advantages of good shock absorption and low cost.

However, the hardness value of the conventional aluminum alloy material is about 90HB, and the tensile strength value is about 200-; when the transmission case is required to have high performance, the strength and hardness of the original aluminum alloy are low, so that the strength and hardness of the finished transmission case are influenced, and the use of the transmission case is influenced.

Disclosure of Invention

The invention aims to provide the high-performance transmission box body aluminum alloy so as to solve the problems that the original aluminum alloy material is low in hardness and tensile strength value and influences the strength and hardness of the high-performance transmission box body.

In order to achieve the above object, the basic scheme of the invention is as follows: the high-performance transmission case aluminum alloy comprises silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, lead, titanium and aluminum, and the aluminum alloy comprises 4-5.8 wt% of copper, 0.3-0.7 wt% of magnesium and 93.5-95.7 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum.

The principle and advantages of the basic scheme are as follows: the hardness value and the tensile strength value of the aluminum alloy can be effectively adjusted by controlling the content of copper and magnesium, after the transmission box body is manufactured by adopting the aluminum alloy with the components, the tensile strength value of the transmission box body reaches 245-.

Further, the 93.5-95.7 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum comprises 8-11 wt% of silicon, less than 0.6 wt% of manganese, less than 1.5 wt% of iron, less than 0.6 wt% of nickel, less than 4 wt% of zinc, less than 0.42 wt% of tin and the balance of aluminum.

The contents of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum are further limited, so that the use amounts of the silicon, the copper, the manganese, the magnesium, the iron, the zinc, the nickel, the tin and the aluminum are matched with the use amounts of the copper and the magnesium, and the tensile strength and the hardness of the aluminum alloy are stably improved under the synergistic effect.

Further, the aluminum alloy includes 4.5 to 5.6 wt% of copper, 0.35 to 0.65 wt% of magnesium, and 93.75 to 95.15 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, and aluminum.

4.5-5.6 wt% of copper and 0.35-0.65 wt% of magnesium are adopted, the tensile strength value of the transmission box body can be further accurately increased to be more than 250MPa, the corresponding hardness can also reach 105HB, the tensile strength and hardness of the aluminum alloy can be accurately controlled, and the corresponding strength and hardness can better meet the requirements of the high-performance transmission box body.

Further, the 93.9-94.6 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum comprises 8.5-10.5 wt% of silicon, less than 0.55 wt% of manganese, less than 1.4 wt% of iron, less than 0.55 wt% of nickel, less than 3.5 wt% of zinc, less than 0.40 wt% of tin and the balance of aluminum.

Through the arrangement, the using amounts of silicon, copper, manganese, magnesium, iron, zinc, nickel and tin are further refined, the tensile strength and hardness of the aluminum alloy can be further ensured, meanwhile, the using amounts of copper, magnesium, silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum are balanced, and the corresponding cost is effectively controlled.

Further, the aluminum alloy includes 5 to 5.5 wt% of copper, 0.4 to 0.6 wt% of magnesium, and 93.9 to 94.6 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin, and aluminum.

5-5.5 wt% of copper and 0.4-0.6 wt% of magnesium are adopted, so that the dosage of copper and magnesium is optimal, and the tensile strength and the hardness of the finally formed transmission case body can also be optimal.

Further, the 93.9-94.6 wt% of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum comprises 9-10 wt% of silicon, less than 0.5 wt% of manganese, less than 1.3 wt% of iron, less than 0.5 wt% of nickel, less than 3 wt% of zinc, less than 0.35 wt% of tin and the balance of aluminum.

Through the setting, the dosage ratio of silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum reaches the best, can accurately let the forming of derailleur box, promotes the tensile strength and the hardness of derailleur box simultaneously.

Drawings

FIG. 1 is a schematic structural view of a melting apparatus for aluminum alloy processing of a high performance transmission case according to the present invention;

fig. 2 is an enlarged view of the feed unit of fig. 1.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: furnace body 10, feed inlet 101, discharge gate 102, solenoid 201, temperature measurement galvanic couple 202, direction hopper 301, separation blade 302, weighing sensor 303, electro-magnet 304, caulking groove 305, supporting bench 40, hydraulic telescoping rod 401, support column 402, play hopper 403, conveyer belt 404, rotating wheel 405, sand mould 50.

A high performance transmission case aluminum alloy comprising 5-5.5 wt% copper, 0.4-0.6 wt% magnesium, 9-10 wt% silicon, less than 0.5 wt% manganese, less than 1.3 wt% iron, less than 0.5 wt% nickel, less than 3 wt% zinc, less than 0.35 wt% tin, and the balance aluminum.

Meanwhile, the melting equipment shown in the attached drawings 1 and 2 is adopted to process the aluminum alloy, the melting equipment comprises a furnace body 10, a heating unit, a supporting unit, a feeding unit and a forming unit, the heating unit comprises a power supply, an electromagnetic coil 201 and a temperature measuring couple 202, an installation cavity for the electromagnetic coil 201 to wind is arranged in the inner wall of the furnace body 10, the electromagnetic coil 201 is glued with the inner wall of the installation cavity, the end part of the electromagnetic coil 201 penetrates through the side wall of the furnace body 10 to be electrically connected with the power supply, the temperature measuring couple 202 is vertically arranged, the upper end of the temperature measuring couple 202 is welded with the inner wall of the furnace body 10, and the lower end of the temperature measuring couple 202.

As shown in fig. 2, the feeding unit comprises a guiding hopper 301, two blocking pieces 302, two weighing sensors 303, a processor, two electromagnets 304 capable of attracting the blocking pieces 302 and a controller for controlling the electromagnets 304 to open and close, a feeding port 101 is arranged on the top of the furnace body 10, the guiding hopper 301 is vertically welded at the feeding port 101, the upper end of the guiding hopper 301 is in a vertical cylindrical shape, the lower end of the guiding hopper 301 is in a funnel shape, two caulking grooves 305 are arranged on the inner wall of the lower end of the guiding hopper 301, the two caulking grooves 305 are arranged on the left side and the right side of the guiding hopper 301, the two guiding hoppers 301 are symmetrically arranged along the vertical central line of the guiding hopper 301, one end of each blocking piece 302 is hinged with the top of the caulking groove 305 of the guiding hopper 301, and the other end of each, when the two baffle pieces 302 are spliced, the two baffle pieces 302 are positioned on the same horizontal plane, and a torsional spring is arranged at the hinged part of the baffle pieces 302 and the guide hopper 301; meanwhile, two weighing sensors 303 are respectively and horizontally welded in the baffle plate 302, the electromagnet 304 is welded on the inner wall of the caulking groove 305, and the weighing sensors 303 and the controller are both electrically connected with the processor.

As shown in fig. 1, the supporting unit comprises a supporting table 40, a hydraulic telescopic rod 401 and a supporting column 402, the longitudinal section of the supporting table 40 is in an "L" shape, the lower end of the hydraulic telescopic rod 401 is hinged to the upper surface of the lower side of the supporting table 40, the upper end of the hydraulic telescopic rod 401 is hinged to the lower surface of the furnace body 10, the lower end of the supporting column 402 is hinged to the upper surface of the upper side of the supporting table 40, the upper end of the supporting column 402 is hinged to the lower surface of the furnace body 10, and the supporting column 402 is; when the hydraulic telescopic rod 401 is contracted, the lower surface of the furnace body 10 is in a horizontal state.

As shown in fig. 1, the forming unit includes a discharge hopper 403, a conveyor belt 404, a rotating wheel 405 for driving the conveyor belt to rotate, and a plurality of sand molds 50, a discharge port 102 is provided on the upper end of the right side of the furnace body 10, and the discharge hopper 403 is welded at the discharge port 102; the sand mold 50 is arranged on the conveyor belt 404, the sand mold 50 can be opposite to the discharge hopper 403, and the vertical plane of the conveyor belt 404 is vertical to the rotation plane of the furnace body 10.

When melting equipment is adopted to melt and process aluminum alloy, copper, magnesium, silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum are sequentially placed on the blocking pieces 302, when the copper is put into the furnace body, the two blocking pieces 302 are in a split horizontal state, when the copper is placed on the blocking pieces 302, the weight of the copper can be measured by the weighing sensor 303 on the blocking pieces 302, when the copper amount reaches the specified weight, the weighing sensor 303 transmits a weight signal to the processor, the processor sends an opening signal to the controller, the controller controls the electromagnet 304 to be opened at the moment, under the attraction effect of the electromagnet 304, the blocking pieces 302 rotate around the hinged part and are limited in the caulking groove 305 to realize the opening of the feeding hole 101, after the copper enters the furnace body 10, the controller controls the electromagnet 304 to be closed, the two blocking pieces 302 rotate to the horizontal split state again under the effect of the torsion spring, then, other subsequent metal elements can be put in, and the dosage of each metal can be effectively controlled.

After copper, magnesium, silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum are all put into the furnace body 10, the electromagnetic coil 201 is started, the electromagnetic coil 201 carries out hot melting on the copper, magnesium, silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum in the furnace body 10, the copper, magnesium, silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum are formed into alloy liquid after hot melting, the temperature measuring couple 202 can detect the temperature of the alloy liquid to enable the alloy liquid to reach the required melting temperature, after the copper, magnesium, silicon, copper, manganese, magnesium, iron, zinc, nickel, tin and aluminum are all melted and mixed, the hydraulic telescopic rod 401 is extended, the hydraulic telescopic rod 401 is jacked to the left end of the furnace body 10 is rightwards turned over under the support of the support column 402, at the moment, the upper right end of the furnace body 10 is inclined downwards, the alloy liquid in the furnace body 10 enters the sand mold 50 on the conveyor belt 404 through the discharge port 102 and the discharge hopper 403, allowing the alloy liquid to enter a sand mold 50, and cooling and shaping the alloy liquid by the sand mold 50; after one sand mold 50 is filled with the alloy liquid, the rotating wheel 405 drives the conveying belt 404 to rotate, and the conveying belt 404 drives the sand mold 50 to horizontally move, so that the next sand mold 50 is opposite to the discharge hopper 403, and the rapid forming of the aluminum alloy is realized.