CN104694727B - A kind of wheel hub thermal treatment speed-raising technique - Google Patents
A kind of wheel hub thermal treatment speed-raising technique Download PDFInfo
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- CN104694727B CN104694727B CN201510140081.XA CN201510140081A CN104694727B CN 104694727 B CN104694727 B CN 104694727B CN 201510140081 A CN201510140081 A CN 201510140081A CN 104694727 B CN104694727 B CN 104694727B
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Abstract
The invention belongs to wheel hub manufacture field, be specifically related to a kind of wheel hub thermal treatment speed-raising technique.Heat treating method is divided into three phases, solid solution, quenching and timeliness, and its flow process is: then casting aluminium wheels out through roentgen machine, then arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature setting 540-550 DEG C, heating-up time 25-28 minute, soaking time 110-115 minute, then wheel hub keeps solid solution phase temperature to enter quenching, cool time is below 20S, and in the quenchant of 80-90 DEG C, invades bubble 5 minutes, then enters aging oven, Stages of Aging temperature 155-165 DEG C, soaking time 60 minutes.
Description
Technical field
The invention belongs to wheel hub manufacture field, be specifically related to a kind of wheel hub thermal treatment speed-raising technique.
Background technology
Wheel hub be in recent years develop high technology content, high added value auto-parts.It is automotive field new growth engines and developing direction, succeeding in developing of the third generation wheel hub that the auto parts machinery supplier DELPffi that particularly whole world is maximum at present produces, wheel hub production domesticization becomes the task of top priority, and thermal treatment is the critical process that hub manufactures; Because its piece surface is complex-shaped, therefore thermal treatment process difficulty large, require high, become the critical process of this project development development.The advantages such as aluminum vehicle wheel is lightweight with it, energy-conservation, good heat dissipation, attractive in appearance, corrosion-resistant, processibility is good are constantly approved, adopt aluminum vehicle wheel to become the optimal selection of alternative steel wheel, make the demand sharp increase of automobile aluminum matter wheel hub.
Traditional thermal treatment has following deficiency: treatment production efficiency is low, and thermal treatment solid solution furnace heats up slow, and thermal treatment energy consumption is high.Patent 2010102089261 discloses a kind of thermal treatment process of ZL 101 A aluminium alloy for automobile wheel hub.It comprises the steps: that as cast condition blank enters that Solution Treatment Furnace heats up, solution treatment under solid solubility temperature, go out Solution Treatment Furnace quench treatment, as cast condition blank enters that aging oven heats up, ageing treatment under aging temp, go out aging oven after cool in air dielectric, it is characterized in that: solid solution temperature is 525-550 DEG C, solution treatment soaking time is 60-120 minute; Aging temperature is 165-180 DEG C, and ageing treatment soaking time is 90-180 minute.The heat treated production efficiency of this patent of invention is lower, and with duration, energy consumption is large, is not suitable for large-scale commercial production.
Summary of the invention
An object of the present invention is a kind of wheel hub heat treating method, it is characterized in that, described treatment process is divided into three phases, solid solution, quenching and timeliness, and its flow process is:
Then casting aluminium wheels out through roentgen machine, then arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature setting 540-550 DEG C, is preferably 544-548 DEG C.Heating-up time 25-28 minute, soaking time 110-115 minute, then wheel hub keeps solid solution phase temperature to enter quenching, and the cool time is below 20s, is preferably 17-19s, and be 80-90 DEG C in temperature, be preferably in the medium of 83-85 DEG C and invade bubble 5 minutes, then enter aging oven, Stages of Aging temperature is 155-165 DEG C, be preferably 158-160 DEG C, soaking time 60 minutes.
Described heat treating method also comprises, aluminium wheels is before passing through roentgen machine, first through photographic system, photographic system is transferred to roentgen machine Controlling System after the form of wheel rim being taken pictures, roentgen machine transfers corresponding formula, utilize the different sites of x-ray bombardment wheel rim, thus find the defect of aluminium wheels inside; Roentgen machine is determined as the continuous of OK and stays, and is scrapping of NG.
Describedly rush cutter and the punch die system that rising head machine is equipped with applicable stamping hub; In punch die system, wheel hub is delivered to the chained form system of machine intimate by travelling belt, then is linearly moved to the cylinder upper with positioned centrally head; This distance controls by by grating; Cylinder is moved upward by lifting wheel hub inner edge, and positioned centrally refers to radially move, and makes wheel hub be positioned central cylindrical, and then positioned centrally refers to recall, and wheel hub presses punch die.Next action punching machine enters the wheel hub back side, goes out cast gate by the drift in punch die, ejects cylinder and the cast gate swept away is released machine.Punching machine is recalled, and all cylinders return starting position, and wheel hub is placed on steel disk, and pre-aligning gear is sent next wheel hub here and released the wheel hub that punching press completes.The new process-cycle starts.
Rushing rising head central hole size is 57.05mm; Namely punch size rushes and emits the lower/upper tool dimension of machine to be 40/48mm.
After entering aging oven, the time being warming up to Stages of Aging temperature is 25-28 minute, is preferably 26 minutes.
Described solid solution and ag(e)ing process, utilize frequency transformer to set the rotating speed of heating zone recirculation blower in solid solution and aging oven, frequency is 50Hz, and cycling time is 20 minutes/circulation.
The backward aluminium wheels sprayable refractory of described quenching, described refractory materials is ZD coating.
Described quenchant saltpetre, sodium-chlor, polyvinyl alcohol, water-soluble polyethylene glycol ether, rust-preventive agent and water.Preferably its weight ratio is saltpetre 15-18 part, sodium-chlor 20-23 part, polyvinyl alcohol 25-30 part, water-soluble polyethylene glycol ether 15-20 part, rust-preventive agent 1-2 part and water 30-35 part.
The present invention makes the production efficiency of heat treatment furnace improve 13% on original design basis, at the rotating speed of technical elements by utilizing frequency transformer to change heating zone recirculation blower in solid solution and aging oven, thus aluminium alloy wheel hub heat absorption is accelerated, wheel hub heats up evenly change, time shorten.Reduce energy consumption simultaneously, cost-saving.Every day, process wheel hub 6912 produced by every platform heat treatment furnace, so just can improve the processing power of equipment, meet the Production requirement of epimere operation completely.Quenchant in the present invention, cooling power is strong, has good cooling characteristic.Meanwhile, finished product has good bending property and intensity, and shock resistance, antifatigue.Roentgen machine and the use of rushing rising head machine, further increase production efficiency, ensure that quality product.
Embodiment
embodiment 1
Aluminium wheels is first through photographic system, and photographic system is transferred to roentgen machine Controlling System after the form of wheel rim being taken pictures, and roentgen machine transfers corresponding formula, utilizes the different sites of x-ray bombardment wheel rim, thus finds the defect of aluminium wheels inside; Roentgen machine is determined as the continuous of OK and stays, and is scrapping of NG.Then aluminium wheels through roentgen machine, then arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature sets 544 DEG C, 25 minutes heating-up times, soaking time 110 minutes, and then wheel hub keeps the temperature of 544 DEG C to enter quenching, and the time is 20S, and in the quenchant of 85 DEG C, invades bubble 5 minutes.Quenchant is 15 parts, saltpetre, 20 parts, sodium-chlor, polyvinyl alcohol 30 parts, 15 parts, water-soluble polyethylene glycol ether, rust-preventive agent 2 parts and 30 parts, water.To aluminium wheels spraying ZD material.Then enter aging oven, the time being warming up to Stages of Aging temperature is 26 minutes, effect phase temperature 160 DEG C, soaking time 60 minutes.
Describedly rush cutter and the punch die system that rising head machine is equipped with applicable stamping hub; In punch die system, wheel hub is delivered to the chained form system of machine intimate by travelling belt, then is linearly moved to the cylinder upper with positioned centrally head; This distance controls by by grating; Cylinder is moved upward by lifting wheel hub inner edge, and positioned centrally refers to radially move, and makes wheel hub be positioned central cylindrical, and then positioned centrally refers to recall, and wheel hub presses punch die.Next action punching machine enters the wheel hub back side, goes out cast gate by the drift in punch die, ejects cylinder and the cast gate swept away is released machine.Punching machine is recalled, and all cylinders return starting position, and wheel hub is placed on steel disk, and pre-aligning gear is sent next wheel hub here and released the wheel hub that punching press completes.The new process-cycle starts.
Rushing rising head central hole size is 57.05mm; Punch size is 40/48mm.
By the rotating speed of heating zone recirculation blower in frequency transformer setting solid solution and aging oven, frequency is 50Hz, and cycling time is 20 minutes/circulation.
embodiment 2
Aluminium wheels is first through photographic system, and photographic system is transferred to roentgen machine Controlling System after the form of wheel rim being taken pictures, and roentgen machine transfers corresponding formula, utilizes the different sites of x-ray bombardment wheel rim, thus finds the defect of aluminium wheels inside; Roentgen machine is determined as the continuous of OK and stays, and is scrapping of NG.Then aluminium wheels through roentgen machine, then arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature sets 540 DEG C, 28 minutes heating-up times, soaking time 115 minutes, and then wheel hub keeps the temperature of 540 DEG C to enter quenching, and the time is 19S, and in the medium of 80 DEG C, invades bubble 5 minutes.Quenchant is 18 parts, saltpetre, 23 parts, sodium-chlor, polyvinyl alcohol 25 parts, 20 parts, water-soluble polyethylene glycol ether, rust-preventive agent 1 part and 35 parts, water.To aluminium wheels spraying ZD material.Then enter aging oven, the time being warming up to Stages of Aging temperature is 25 minutes, Stages of Aging temperature 158 DEG C, soaking time 60 minutes.
Describedly rush cutter and the punch die system that rising head machine is equipped with applicable stamping hub; In punch die system, wheel hub is delivered to the chained form system of machine intimate by travelling belt, then is linearly moved to the cylinder upper with positioned centrally head; This distance controls by by grating; Cylinder is moved upward by lifting wheel hub inner edge, and positioned centrally refers to radially move, and makes wheel hub be positioned central cylindrical, and then positioned centrally refers to recall, and wheel hub presses punch die.Next action punching machine enters the wheel hub back side, goes out cast gate by the drift in punch die, ejects cylinder and the cast gate swept away is released machine.Punching machine is recalled, and all cylinders return starting position, and wheel hub is placed on steel disk, and pre-aligning gear is sent next wheel hub here and released the wheel hub that punching press completes.The new process-cycle starts.
Rushing rising head central hole size is 57.05mm; Punch size is 40/48mm.
By the rotating speed of heating zone recirculation blower in frequency transformer setting solid solution and aging oven, frequency is 50Hz, and cycling time is 20 minutes/circulation.
embodiment 3
Aluminium wheels is first through photographic system, and photographic system is transferred to roentgen machine Controlling System after the form of wheel rim being taken pictures, and roentgen machine transfers corresponding formula, utilizes the different sites of x-ray bombardment wheel rim, thus finds the defect of aluminium wheels inside; Roentgen machine is determined as the continuous of OK and stays, and is scrapping of NG.Then aluminium wheels through roentgen machine, then arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature sets 550 DEG C, 26 minutes heating-up times, soaking time 113 minutes, and then wheel hub keeps the temperature of 550 DEG C to enter quenching, and the time is 18S, and in the medium of 90 DEG C, invades bubble 5 minutes.Quenchant is 16 parts, saltpetre, 22 parts, sodium-chlor, polyvinyl alcohol 27 parts, 18 parts, water-soluble polyethylene glycol ether, rust-preventive agent 1.5 parts and 33 parts, water.To aluminium wheels spraying ZD material.Then enter aging oven, the time being warming up to Stages of Aging temperature is 28 minutes, Stages of Aging temperature 165 DEG C, soaking time 60 minutes.
Describedly rush cutter and the punch die system that rising head machine is equipped with applicable stamping hub; In punch die system, wheel hub is delivered to the chained form system of machine intimate by travelling belt, then is linearly moved to the cylinder upper with positioned centrally head; This distance controls by by grating; Cylinder is moved upward by lifting wheel hub inner edge, and positioned centrally refers to radially move, and makes wheel hub be positioned central cylindrical, and then positioned centrally refers to recall, and wheel hub presses punch die.Next action punching machine enters the wheel hub back side, goes out cast gate by the drift in punch die, ejects cylinder and the cast gate swept away is released machine.Punching machine is recalled, and all cylinders return starting position, and wheel hub is placed on steel disk, and pre-aligning gear is sent next wheel hub here and released the wheel hub that punching press completes.The new process-cycle starts.
Rushing rising head central hole size is 57.05mm; Punch size is 40/48mm.
By the rotating speed of heating zone recirculation blower in frequency transformer setting solid solution and aging oven, frequency is 50Hz, and cycling time is 20 minutes/circulation.
embodiment 4
Aluminium wheels is first through photographic system, and photographic system is transferred to roentgen machine Controlling System after the form of wheel rim being taken pictures, and roentgen machine transfers corresponding formula, utilizes the different sites of x-ray bombardment wheel rim, thus finds the defect of aluminium wheels inside; Roentgen machine is determined as the continuous of OK and stays, and is scrapping of NG.Then aluminium wheels through roentgen machine, then arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature sets 548 DEG C, 27 minutes heating-up times, soaking time 112 minutes, and then wheel hub keeps the temperature of 548 DEG C to enter quenching, and the time is 17S, and in the medium of 80 DEG C, invades bubble 5 minutes.Quenchant is 18 parts, saltpetre, 23 parts, sodium-chlor, polyvinyl alcohol 25 parts, 20 parts, water-soluble polyethylene glycol ether, rust-preventive agent 1 part and 35 parts, water.To aluminium wheels spraying ZD material.Then enter aging oven, the time being warming up to Stages of Aging temperature is 27 minutes, Stages of Aging temperature 155 DEG C, soaking time 60 minutes.
Describedly rush cutter and the punch die system that rising head machine is equipped with applicable stamping hub; In punch die system, wheel hub is delivered to the chained form system of machine intimate by travelling belt, then is linearly moved to the cylinder upper with positioned centrally head; This distance controls by by grating; Cylinder is moved upward by lifting wheel hub inner edge, and positioned centrally refers to radially move, and makes wheel hub be positioned central cylindrical, and then positioned centrally refers to recall, and wheel hub presses punch die.Next action punching machine enters the wheel hub back side, goes out cast gate by the drift in punch die, ejects cylinder and the cast gate swept away is released machine.Punching machine is recalled, and all cylinders return starting position, and wheel hub is placed on steel disk, and pre-aligning gear is sent next wheel hub here and released the wheel hub that punching press completes.The new process-cycle starts.
Rushing rising head central hole size is 57.05mm; Punch size is 40/48mm.
By the rotating speed of heating zone recirculation blower in frequency transformer setting solid solution and aging oven, frequency is 50Hz, and cycling time is 20 minutes/circulation.
comparative example 1
Then aluminium wheels arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature sets 480 DEG C, 25 minutes heating-up times, soaking time 110 minutes, and then wheel hub keeps the temperature of 480 DEG C to enter quenching, and the time is 20S, and in the quenchant of 95 DEG C, invades bubble 2 minutes.Quenchant is 10 parts, saltpetre, 20 parts, sodium-chlor, polyvinyl alcohol 20 parts, 10 parts, water-soluble polyethylene glycol ether and 40 parts, water.To aluminium wheels spraying ZD material.Then enter aging oven, the time being warming up to Stages of Aging temperature is 35 minutes, Stages of Aging temperature 160 DEG C, soaking time 60 minutes.
Describedly rush cutter and the punch die system that rising head machine is equipped with applicable stamping hub; In punch die system, wheel hub is delivered to the chained form system of machine intimate by travelling belt, then is linearly moved to the cylinder upper with positioned centrally head; This distance controls by by grating; Cylinder is moved upward by lifting wheel hub inner edge, and positioned centrally refers to radially move, and makes wheel hub be positioned central cylindrical, and then positioned centrally refers to recall, and wheel hub presses punch die.Next action punching machine enters the wheel hub back side, goes out cast gate by the drift in punch die, ejects cylinder and the cast gate swept away is released machine.Punching machine is recalled, and all cylinders return starting position, and wheel hub is placed on steel disk, and pre-aligning gear is sent next wheel hub here and released the wheel hub that punching press completes.The new process-cycle starts.
Rushing rising head central hole size is 57.05mm; Punch size is 40/48mm.
By the rotating speed of heating zone recirculation blower in frequency transformer setting solid solution and aging oven, frequency is 40Hz, and cycling time is 25 minutes/circulation.
comparative example 2
Comparative example 2 is patent 2010102089261 embodiment 1.
Embodiment 1, embodiment 2, comparative example 1 and comparative example 2 is carried out to the mensuration of mechanical property
Table 1
As shown in Table 1, the tension set of the embodiment 1 of the application and embodiment 2, yield strength, hardness and treatment capacity are significantly better than comparative example 1 and comparative example 2.So, carry out with heat treating method in the application processing the aluminium wheels superior performance obtained.The processing efficiency of the method is high simultaneously, is very suitable for scale operation.
Above-mentioned detailed description is illustrating for one of them possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of technical solution of the present invention.
Claims (6)
1. a wheel hub heat treating method, is characterized in that, described heat treating method is divided into three phases, solid solution, quenching and timeliness, and its flow process is:
Then casting aluminium wheels out through roentgen machine, then arrives thermal treatment through overshoot rising head machine, and thermal treatment is divided into solid solution, quenching and timeliness; Solid solution phase temperature setting 540-550 DEG C, heating-up time 25-28 minute, soaking time 110-115 minute, then wheel hub keeps solid solution phase temperature to enter quenching, cool time is below 20S, and in the quenchant of 80-90 DEG C, invades bubble 5 minutes, then enters aging oven, Stages of Aging temperature 155-165 DEG C, soaking time 60 minutes;
Described quenchant is saltpetre, sodium-chlor, polyvinyl alcohol, water-soluble polyethylene glycol ether, rust-preventive agent and water; Weight ratio is saltpetre 15-18 part, sodium-chlor 20-23 part, polyvinyl alcohol 25-30 part, water-soluble polyethylene glycol ether 15-20 part, rust-preventive agent 1-2 part and water 30-35 part.
2. wheel hub heat treating method as claimed in claim 1, it is characterized in that, described heat treating method also comprises, aluminium wheels is before passing through roentgen machine, first through photographic system, photographic system is transferred to roentgen machine Controlling System after the form of wheel rim being taken pictures, and roentgen machine transfers corresponding formula, utilize the different sites of x-ray bombardment wheel rim, thus find the defect of aluminium wheels inside; Roentgen machine is determined as the continuous of OK and stays, and is scrapping of NG.
3. wheel hub heat treating method as claimed in claim 1, is characterized in that, describedly rushes cutter and the punch die system that rising head machine is equipped with applicable stamping hub; In punch die system, wheel hub is delivered to the chained form system of machine intimate by travelling belt, then is linearly moved to the cylinder upper with positioned centrally head; This distance controls by by grating; Cylinder is moved upward by lifting wheel hub inner edge, and positioned centrally refers to radially move, and makes wheel hub be positioned central cylindrical, and then positioned centrally refers to recall, and wheel hub presses punch die; Rushing rising head central hole size is 57.05mm; Punch size is 40/48mm.
4. wheel hub heat treating method as claimed in claim 1, it is characterized in that, after entering aging oven, the time being warming up to Stages of Aging temperature is 25-28 minute.
5. wheel hub heat treating method as claimed in claim 1, is characterized in that, described solid solution and ag(e)ing process, and by the rotating speed of heating zone recirculation blower in frequency transformer setting solid solution and aging oven, frequency is 50HZ, and cycling time is 20 minutes/circulation.
6. wheel hub heat treating method as claimed in claim 1, is characterized in that, described flow process fully automated.
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| CN105063521A (en) * | 2015-08-05 | 2015-11-18 | 浙江万丰摩轮有限公司 | Thermal treatment process for aluminum alloy hubs |
| CN105936971A (en) * | 2016-04-30 | 2016-09-14 | 三门县职业中等专业学校 | Hot processing technology for automobile hub |
| CN109402333A (en) * | 2018-12-13 | 2019-03-01 | 安徽优合科技股份有限公司 | A kind of automotive hub heat treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277717A (en) * | 1992-02-20 | 1994-01-11 | Alliedsignal Inc. | Rapidly solidified aluminum lithium alloys having zirconium for aircraft landing wheel applications |
| CN102936643A (en) * | 2012-12-07 | 2013-02-20 | 沈阳洪达信息科技有限公司 | Novel quenching medium |
| CN103469024A (en) * | 2013-09-24 | 2013-12-25 | 天津那诺机械制造有限公司 | Special aluminum-alloy material for liquid die-forging molding of aluminum-alloy wheels of heavy-duty vehicle and molding method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277717A (en) * | 1992-02-20 | 1994-01-11 | Alliedsignal Inc. | Rapidly solidified aluminum lithium alloys having zirconium for aircraft landing wheel applications |
| CN102936643A (en) * | 2012-12-07 | 2013-02-20 | 沈阳洪达信息科技有限公司 | Novel quenching medium |
| CN103469024A (en) * | 2013-09-24 | 2013-12-25 | 天津那诺机械制造有限公司 | Special aluminum-alloy material for liquid die-forging molding of aluminum-alloy wheels of heavy-duty vehicle and molding method |
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