CN108265171A - Anti-deformation heat treatment tooling and closing in cylinder high-strength anticorrosion heat treatment process - Google Patents
Anti-deformation heat treatment tooling and closing in cylinder high-strength anticorrosion heat treatment process Download PDFInfo
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- CN108265171A CN108265171A CN201810104263.5A CN201810104263A CN108265171A CN 108265171 A CN108265171 A CN 108265171A CN 201810104263 A CN201810104263 A CN 201810104263A CN 108265171 A CN108265171 A CN 108265171A
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- cylinder
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- tooling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
Abstract
The present invention provides anti-deformation heat treatment tooling and becomes wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process, is related to technical field of heat treatment technology.It is related to anti-deformation heat treatment tooling, fixes disk including top from top to bottom and disk is fixed in lower part, pass through multiple fixed rod supports between two fixed disks；Disk is fixed on top has multiple first through hole for fixed support bolt, and bolt is used to be clamped with closing in cylinder oral area；Disk is fixed in lower part has multiple inversed taper platform shape holes for being used to hold closing in cylinder cylinder bottom；Each first through hole vertically corresponds to an inversed taper platform shape hole.It further relates to become wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process, mainly includes the heat treatment process of solid solution-quenching-high temperature, short time preageing-quick water cooling-low temperature preageing-peak timeliness-overaging when long.Technical solution using the present invention can improve plasticity and corrosion resistance, and reduce component heat-treatment distortion, improve the performance of closing in cylinder and prepare qualification rate.
Description
Technical field
The present invention relates to technical field of hot working, high tough resistance to more particularly, to anti-deformation heat treatment tooling and closing in cylinder
Lose heat treatment process.
Background technology
Aluminium alloy is widely used to traffic because of the advantages that its density is low, specific strength is high, corrosion resistance is better than steel, easy processing
The industries such as transport, petrochemical industry, building, daily necessities.Steel or copper are substituted using aluminium alloy, loss of weight can be achieved in the case where structure is constant
More than 65%.Therefore, aluminium alloy is to realize one of light-weighted ideal material of component.
Closing in cylinder is using a kind of wide storage container, to realize lightweight, has begun to use high strength alumin ium alloy
Substitute copper and steel, field particularly higher to lightweight requirements, such as aviation, personal portable product.High strength alumin ium alloy is with showing
It is useful for having larger difference on the copper and Steel Properties of closing in cylinder.The intensity of high strength alumin ium alloy can reach some trade mark copper and steel
Level, but plasticity is poor, and elongation percentage is relatively low.To meet making for certain change wall thickness thin-walled closing in cylinders for bearing the impacts such as machinery
With requiring, high strength alumin ium alloy need to improve plasticity, to meet high anti-corrosion requirement, also need to improve corrosion resisting property.Further, since some
Closing in cylinder is less than 0.5mm to become wall thickness thin-wall construction, thinnest part, and thickness thickness is more than the several times of thinnest part, and is length
Diameter is than big, and oral area is small, and structure is as shown in Figure 1.How under the premise of ensureing to become wall thickness thin-wall aluminum alloy closing in cylinder strength, carry
High-ductility and corrosion resistance, and ensure to be subjected to the size range of the not super design of acute cold causus indeformable or deformation in heat treatment process
It is its difficult point.
In consideration of it, to realize successful application of the high strength alumin ium alloy on wall thickness thin-walled closing in cylinder is become, based on existing high-strength
The performance and heat treatment process of aluminum alloy materials, it is necessary to develop a kind of change wall thickness thin-wall high-strength aluminium alloy cylindrical body heat treatment work
Skill and anti-deformation tool under the premise of proof strength is met the requirements, improve plasticity and corrosion resistance, and reduce component heat treatment and become
Shape improves cylinder performance and prepares qualification rate.
The information for being disclosed in the background technology part is merely intended to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implies that the information forms the prior art known to those skilled in the art in any form.
Invention content
The first object of the present invention is to provide a kind of anti-deformation heat treatment tooling, can realize to wall thickness thin-walled closing in cylinder
Body carries out stablizing installation, and can improve plasticity and corrosion resistance, and reduce component heat-treatment distortion, improves the property of closing in cylinder
It can and prepare qualification rate.
A kind of anti-deformation heat treatment tooling provided by the invention fixes disk under including one-to-one top from top to bottom
Disk is fixed in portion, and disk is fixed on the top and the lower part is fixed the multiple fixed links set between disk by outer edge and propped up
Support；
Disk is fixed on the top has multiple first through hole for being used to support bolt and passing through, and the bolt is used for and closing in cylinder
The cylinder oral area clamping of body；
Disk is fixed in the lower part has multiple second through-holes, and second through-hole is used to hold the cylinder bottom of closing in cylinder；
Each first through hole vertically corresponds to second through-hole.
In any of the above-described technical solution, further, the fixed link is the structure of top bending.
In any of the above-described technical solution, further, there are three the fixed link settings, and three fixed links are uniform
It is laid in the periphery that disk is fixed on the top and disk is fixed in the lower part.
In any of the above-described technical solution, further, between the top is fixed between disk and lower part fixation disk
Away from higher than closing in cylinder height 10mm~20mm.
In any of the above-described technical solution, further, second through-hole is inversed taper platform shape pore structure, forms knot suitable for reading
Structure and lower mouth structure；
The aperture of the upper mouth structure is more than closing in barrel diameter 0.5mm~1mm；
The aperture of the lower mouth structure is less than closing in barrel diameter 0.5mm~1mm.
The second object of the present invention is to provide a kind of change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment
Technique ensures under the premise of becoming wall thickness thin-wall aluminum alloy closing in cylinder strength, improves and become wall thickness thin-wall aluminum alloy closing in cylinder
Plasticity and corrosion resistance；It solves to become problem on deformation of the wall thickness thin-wall aluminum alloy closing in cylinder in heat treatment process.
A kind of change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process provided by the invention, including as follows
Step：
Step A：According to the structure size for the cylinder oral area and cylinder body bottom for becoming wall thickness thin-wall aluminum alloy closing in cylinder, design
A kind of Claims 1 to 5 any one of them anti-deformation heat treatment tooling；
Step B：According to the anti-deformation heat treatment tooling drawing of design, the steel that intensity is selected to meet the requirements is added using machinery
The method of work prepares tooling；
Step C：It is required according to intensity, plasticity and corrosion resistance, designs the heat treatment process for meeting performance requirement, and carry
Go out detail requirements；
Step D：Tooling is disposed vertically, change wall thickness thin-wall aluminum alloy closing in cylinder body bottom is placed on tooling lower part fixes
It in second through-hole of disk, keeps cylinder vertical, is fixed hollow T-shaped support at the first through hole of disk corresponding position from tooling top
Bolt is inserted into the oral area of cylinder；
Step E：Solution heat treatment is carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using heat-treatment furnace；
Step F：Wall thickness thin-wall aluminum alloy closing in cylinder tooling will be become to take out from solution heat treatment furnace, quenched, taken
Go out, dry；
Step G：Twin-stage Pre-aging treatment is carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using baking oven, including height
Temperature (be no more than peak timeliness temperature) in short-term, quick water cooling, low temperature it is long when twin-stage preageing technique；
Step H：Peak timeliness processing is carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using baking oven；
Step I：Wetted constructures are carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using baking oven；
Step J：After equipped with the cooling of wall thickness thin-wall aluminum alloy closing in cylinder tooling is become, removed from top fixation disk hollow
T-shaped support bolt removes cylinder from tooling；
Step K：Quality inspection is carried out to closing in cylinder after heat treatment.
In any of the above-described technical solution, further, the tension for the steel alloy that tooling material uses in above-mentioned steps B
Intensity should be greater than or equal to 600MPa.
In any of the above-described technical solution, further, heat treatment process includes successively in above-mentioned steps C：Solid solution-
Preageing -- peak timeliness-overaging when quenching-high temperature, short time preageing-quick water cooling-low temperature is long.
In any of the above-described technical solution, further, it is in the solution treatment holding temperature of above-mentioned steps E middle cylinder bodies
465~475 DEG C, 2.5~3.5h of soaking time.
In any of the above-described technical solution, further, the medium quenched in above-mentioned steps F uses room temperature water, transfer
Time, (blow-on door enters to integral quenching in room temperature water) was less than or equal to 20s.
In any of the above-described technical solution, further, the high temperature pre-age temperature of twin-stage preageing in above-mentioned steps G
115~125 DEG C, 1~2h of soaking time, then quick water cooling, transfer time are less than or equal to 20s, low temperature pre-age temperature afterwards
55~65 DEG C, 10~12h of time comes out of the stove air-cooled.
In any of the above-described technical solution, further, peak timeliness temperature is 115~125 DEG C in above-mentioned steps H, is protected
The warm time 20~for 24 hours, it comes out of the stove air-cooled.
In any of the above-described technical solution, further, overaging holding temperature is 160~170 in above-mentioned steps I
DEG C, 1~2h of soaking time comes out of the stove air-cooled.
Beneficial effects of the present invention are as follows：
Anti-deformation heat treatment tooling using the present invention, according to change wall thickness thin-wall aluminum alloy closing in cylindrical shape size, if
Count anti-deformation heat treatment tooling；Fixture Design fixes disk including top and disk is fixed in lower part, two solid into double-deck sieving-disc type structure
Spacing between price fixing is longer than the height of closing in cylinder, is welded and fixed between two fixed disks using three rod irons；Lower part is fixed
The second through-hole for fixing closing in cylinder body bottom is uniform-distribution on disk, top is fixed on disk to be dispersed with fixes disk pair with lower part
The first through hole answered, the central axis that the second through-hole of disk is fixed in central shaft and the lower part of each first through hole are set.The support
Bolt is hollow T-shaped support bolt, and the bar that support bolt is used to fix closing in cylinder oral area uses steel pipe, T-shaped support bolt
Bar portion total length should be equal to spacing and closing in cylinder between the thickness, closing in cylinder oral area and top fixation disk of top fixation disk
The overall length of body oral area length.Closing in cylinder opposite upper parts can be fixed to disk and the vertical fixed placement of disk is fixed in lower part, convenient for heat
Treatment process is smoothed out, and change wall thickness thin-wall aluminum alloy closing in cylinder can effectively be made to be in plumbness, and pass through hollow T
Type support latch support oral area, make oral area not because quenching deform cause become wall thickness thin-wall aluminum alloy closing in cylinder scrap so as to
It solves to become problem on deformation of the wall thickness thin-wall aluminum alloy closing in cylinder in heat treatment process.
Change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process using the present invention, using high temperature, short time
Twin-stage preageing when+quick water cooling+low temperature is long improves aluminium alloy precipitation strength phase amount and reduces precipitation strength phase size, has
Conducive to the intensity for improving closing in cylinder, intensity is made to reach maximum value by peak timeliness, and pass through subsequent Wetted constructures, slightly
On the basis of the intensity for reducing cylinder, the plasticity for becoming cylinder is significantly put forward, and make grain boundary precipitate hardening constituent particle nodularization, by continuous
Distribution is changed to discontinuous distribution, blocks grain boundary corrosion channel, improves corrosion resisting property；It further solves to become wall thickness thin-wall aluminum alloy receipts
Problem on deformation of the mouth cylinder in heat treatment process, by designing anti-deformation heat treatment tooling, can effectively make change wall thickness thin-walled
Aluminium alloy closing in cylinder is in plumbness, and passes through hollow T-shaped support latch support oral area, makes oral area not because quenching becomes
Shape causes change wall thickness thin-wall aluminum alloy closing in cylinder to be scrapped.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the half-sectional structural representation of closing in cylinder in the anti-deformation heat treatment tooling that the embodiment of the present invention one~five provides
Figure；
Fig. 2 is the left view knot of Fig. 1 of closing in cylinder in the anti-deformation heat treatment tooling that the embodiment of the present invention one~five provides
Structure schematic diagram；
Fig. 3 is that axis side structure of the anti-deformation heat treatment tooling equipped with closing in cylinder that the embodiment of the present invention one~five provides shows
It is intended to；
Fig. 4 is the design requirement in the inversed taper platform shape hole that disk is fixed in the lower part that the embodiment of the present invention one~five provides；
Fig. 5 is the change wall thickness thin-wall high-strength aluminium alloy closing in cylinder heat treatment process temperature that the embodiment of the present invention one~five provides
Degree-time signal；
Fig. 6 is grain boundary precipitate phase morphology after the heat treatment process that the embodiment of the present invention one~five provides.
Reference numeral：
100- closing in cylinders；200- anti-deformation heat treatment toolings；
101- inner cylinder cavitys；102- bottoms；103- inner cylinders bottom；104- apertures；105- cylinder body outer walls；106-
Internal wall；107- progressive thickness；
201- fixed links；Disk is fixed on 202- tops；203- supports bolt；The second through-holes of 204-；205- is fixed lower part
Disk；
2041- back cut diameters；2042- lower port diameters.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second " are only
For descriptive purposes, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected.It is right
For those of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The anti-deformation heat treatment tooling and change of the present embodiment one, two, three, four, five are described in detail below with reference to Fig. 1-Fig. 6
The technical solution of wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process.
Embodiment one
The specific embodiment of the present embodiment is as follows：
As shown in Figs 1-4, it is the half section structure diagram and left view knot of 100 structure of closing in cylinder provided in this embodiment
Structure schematic diagram, specifically, the closing in cylinder 100 for become wall thickness thin-wall high-strength aluminium alloy cylindrical body structure, including by cylinder oral area to
The structure that cylinder body bottom radial dimension becomes larger forms cylinder inboard wall 106 and cylinder body outer wall 105,106 wall of cylinder inboard wall and cylinder
The widened progressive thickness 107 of wall thickness gradual change is formed between external wall 105；It can be penetrated through between cylinder body bottom and inner cylinder cavity 101
Aperture 104 is provided with, i.e., is formed with aperture 104 between inner cylinder bottom 103 and cylinder bottom 102；Alternatively, cylinder body bottom and inner cylinder cavity
It is connected between 101 for entity.
As shown in figure 3, the axis side structure schematic diagram for anti-deformation heat treatment tooling 200, anti-deformation heat treatment tooling 200 wrap
It includes：Disk 202 is fixed on one-to-one top from top to bottom and disk 205 is fixed in lower part, and disk 202 is fixed on top and disk is fixed in lower part
The multiple fixed links 201 set between 205 by outer edge are supported；Top fix disk 202 have it is multiple be used to support it is slotting
The first through hole that pin 203 passes through, bolt are used to be clamped with the cylinder oral area of closing in cylinder 100；Disk 205 is fixed with multiple in lower part
Second through-hole 204, the second through-hole 204 are used to hold the cylinder bottom 102 of closing in cylinder 100；Each first through hole is vertically one corresponding
Second through-hole 204.
The alternative of the present embodiment is that fixed link 201 is the structure of top bending.
The alternative of the present embodiment is that there are three the settings of fixed link 201, and three fixed links 201 are uniformly distributed on top
The periphery of disk 205 is fixed in fixed disk 202 and lower part.
The alternative of the present embodiment is that the spacing that top is fixed between disk 202 and lower part fixation disk 205 is higher than closing in cylinder
100 height 10mm~20mm of body.
The alternative of the present embodiment is, the second through-hole 204 is inversed taper platform shape pore structure, mouth structure and lower mouth knot in formation
Structure；The aperture of upper mouth structure is more than 100 diameter 0.5mm~1mm of closing in cylinder；The aperture of lower mouth structure is less than closing in cylinder 100
Diameter 0.5mm~1mm.
It should be noted that second through-hole 204 of the present embodiment uses inversed taper platform shape pore structure, the second through-hole can be enhanced
204 act on the fixation clamping of 100 bottom of closing in cylinder, avoid generating closing in cylinder 100 in heat treatment process and topple over or deviate
The problem of.
Using the anti-deformation heat treatment tooling 200 of the present embodiment, the heat treatment process of closing in cylinder 100 is mainly used in,
According to 100 geomery of wall thickness thin-wall aluminum alloy closing in cylinder is become, anti-deformation heat treatment tooling 200 is designed；Fixture Design is in pairs
Layer sieving-disc type structure fixes disk 202 and lower part including top and fixes disk 205, and the spacing between two fixed disks is than closing in cylinder
100 height is long, is welded and fixed between two fixed disks using three rod irons；Lower part is fixed on disk 205 to be uniform-distribution with and is used for
Second through-hole 204 of fixed 100 bottom of closing in cylinder, top is fixed on disk 202 to be dispersed with fixes disk 205 corresponding the with lower part
One through-hole, the central axis for the second through-hole 204 that the central shaft of each first through hole fixes disk 205 with corresponding lower part are set
It puts.The support bolt 203 for hollow T-shaped support bolt 203, adopt by the bar that support bolt 203 is used to fix 100 oral area of closing in cylinder
With steel pipe, the bar portion total length of T-shaped support bolt 203 should be equal to top fix the thickness of disk 202,100 oral area of closing in cylinder with
The overall length of the 100 oral area length of spacing and closing in cylinder between disk 202 is fixed on top.Can by closing in cylinder 100 relatively on
Disk 202 is fixed in portion and 205 vertical fixed placement of disk is fixed in lower part, convenient for being smoothed out for heat treatment process, can effectively make change
Wall thickness thin-wall aluminum alloy closing in cylinder 100 is in plumbness, and passes through hollow T-shaped support bolt 203 and support oral area, makes oral area
Change wall thickness thin-wall aluminum alloy closing in cylinder 100 is not caused to be scrapped so as to solve to become wall thickness thin-wall aluminum alloy receipts because quenching deforms
Problem on deformation of the mouth cylinder 100 in heat treatment process.
Embodiment two
100 high-strength anticorrosion heat treatment process of change wall thickness thin-wall aluminum alloy closing in cylinder provided in this embodiment, including such as
Lower step：
Step A：Anti-deformation heat treatment tooling 200 designs
According to 100 geomery of wall thickness thin-wall aluminum alloy closing in cylinder is become, anti-deformation heat treatment tooling 200 is designed.Tooling
It is designed to double deck screen tray type structure, fixes disk 202 and lower part including top and fix disk 205, the spacing ratio between two fixed disks
The height of closing in cylinder 100 is long, is welded and fixed between two fixed disks using three rod irons, i.e. fixed link 201.Disk is fixed in lower part
The back taper type hole of fixed 100 bottom of closing in cylinder, i.e. inversed taper platform shape hole are uniform-distribution on 205, top, which is fixed on disk 202, to be distributed
First through hole corresponding with the inversed taper platform shape hole that disk 205 is fixed in lower part, the axis of first through hole fixes the center of disk 205 with lower part
Axis is coaxially disposed, and designs hollow T-shaped support bolt 203, and support bolt 203 is used to fix the bar of 100 oral area of closing in cylinder
Using steel pipe, the bar portion total length of T-shaped support bolt 203 should be equal to thickness, 100 oral area of closing in cylinder that disk 202 is fixed on top
The overall length of the 100 oral area length of spacing and closing in cylinder between disk 202 is fixed with top.
Step B, prepared by anti-deformation heat treatment tooling 200
According to 200 drawing of anti-deformation heat treatment tooling of design, the steel that intensity is selected to meet the requirements, using mechanical processing
Method prepares tooling.
Step C, the anti-corrosion Design of Heat Treatment Process of Strengthening and Toughening
It is required according to intensity of aluminum alloy, plasticity and corrosion resistance, designs the heat treatment process for meeting performance requirement, and carry
Technology requirement.
Step D, become installation of the wall thickness thin-wall aluminum alloy closing in cylinder 100 in tooling
Tooling is disposed vertically, the lower part that 100 bottom of change wall thickness thin-wall aluminum alloy closing in cylinder is placed on to tooling is fixed
It in the inversed taper platform shape hole of disk 205, keeps cylinder vertical, the vacancy of 202 corresponding position of disk is fixed by hollow T-shaped branch from tooling top
It supports bolt 203 and is inserted into cylinder oral area, the i.e. fixation to 100 oral area of closing in cylinder.
Step E, become the solution heat treatment of wall thickness thin-wall aluminum alloy closing in cylinder 100
Solution treatment is carried out to closing in cylinder 100 using heat-treatment furnace.Heat-treatment furnace is warming up to the solid solubility temperature of setting,
Fire door is opened, is put into equipped with the tooling for becoming wall thickness thin-wall aluminum alloy closing in cylinder 100, tooling is kept to be disposed vertically, close fire door,
Start timing after temperature reaches set temperature again, and keep the temperature the time to setting.
Step F, become the quenching treatment of wall thickness thin-wall aluminum alloy closing in cylinder 100
Will equipped with become wall thickness thin-wall aluminum alloy closing in cylinder 100 tooling be taken out from solution heat treatment furnace, quickly quench into
In room temperature water.Tooling is taken to come out of the stove and quench during room temperature water, tooling should keep plumbness；Treat that cylinder and tooling cool down completely
Afterwards, it takes out, dries.
Step G, become the twin-stage Pre-aging treatment of wall thickness thin-wall aluminum alloy closing in cylinder 100
Twin-stage Pre-aging treatment is carried out to closing in cylinder 100 using baking oven.Baking oven is warming up to the high temperature preageing of setting
Temperature is put into baking oven equipped with the tooling for becoming wall thickness thin-wall aluminum alloy closing in cylinder 100 by what is dried, keeps being disposed vertically, close
Fire door starts timing after temperature reaches set temperature again, and keeps the temperature the time to setting, quick water cooling.Cooling Process is protected
It holds tooling and is in plumbness.Baking oven is warming up to the low temperature pre-age temperature of setting, being equipped with for drying becomes wall thickness Thin-walled Aluminum
The tooling of alloy closing in cylinder 100 is put into baking oven, keeps being disposed vertically, and fire door is closed, after temperature reaches set temperature again
Start timing, and keep the temperature the time to setting, come out of the stove air-cooled.
Step H, become the peak timeliness processing of wall thickness thin-wall aluminum alloy closing in cylinder 100
Baking oven is warming up to peak timeliness temperature, opens fire door, it will be equipped with the work for becoming wall thickness thin-wall aluminum alloy closing in cylinder 100
Dress vertically is put into baking oven, is closed fire door, is started timing after temperature reaches set temperature again, and keep the temperature to set when
Between, it comes out of the stove air-cooled.
Step I, become the Wetted constructures of wall thickness thin-wall aluminum alloy closing in cylinder 100
Wetted constructures are carried out to closing in cylinder 100 using baking oven.Baking oven is warming up to the Wetted constructures temperature of setting,
Fire door is opened, will be vertically put into baking oven equipped with the tooling for becoming wall thickness thin-wall aluminum alloy closing in cylinder 100, closed fire door, treat temperature
Degree starts timing after reaching set temperature again, and keeps the temperature the time to setting, comes out of the stove air-cooled.
Step J, become wall thickness thin-wall aluminum alloy closing in cylinder 100 to unload from tooling
After equipped with the tooling cooling of wall thickness thin-wall aluminum alloy closing in cylinder 100 is become, fixed on disk 202 from top in removing
Empty T-shaped support bolt 203, cylinder is removed from tooling.
Step K, become the inspection of wall thickness thin-wall aluminum alloy closing in cylinder 100 after being heat-treated
It is visually inspected first and becomes wall thickness thin-wall aluminum alloy closing in cylinder 100 and whether there is apparent deformation, then with slide calliper rule test tube
Body mouth diameters, the diameter for detecting three positions just calculate qualification in the size range of pattern requirement.
Specifically, the spacing ratio that step A middle and upper parts are fixed between disk 202 and lower part fixation disk 205 becomes wall thickness Thin-walled Aluminum and closes
Golden 100 high 10~20mm of closing in cylinder；The back cut diameter 2041 (D3 in Fig. 4) in inversed taper platform shape hole on disk 205 is fixed than cylinder in lower part
Body base diameter (D1 in Fig. 4) big 0.5~1mm, the lower port diameter 2042 in inversed taper platform shape hole is than cylinder body bottom diameter (in such as Fig. 4
D1 the size that D2 is marked in) small 0.5~1mm, i.e. Fig. 3 is the size of lower port diameter 2042；The first through hole of disk 202 is fixed on top
Diameter it is identical with cylinder oral area internal diameter；It is hollow it is T-shaped support bolt 203 fixed link, 201 diameters it is smaller than first through hole by 0.4~
0.6mm；201 internal diameter size of fixed link is controlled the 50%~80% of 201 outer diameter of fixed link.
Specifically, the tensile strength of step B medium alloy steel should be not less than 600MPa, disk 202 is fixed on top and lower part is fixed
The thickness control of disk 205 is at 5~10mm (h1 in such as Fig. 4), and 201 diameter control of fixed link is in 8~12mm.Any one fixes disk
On arbitrary holes center spacing not less than 2 times of diameter of first through hole, and be distributed on fixed disk, hot place can be avoided
It is deformed during reason, the central axis coaxial setting of the corresponding aperture of disk 202 and lower part fixation disk 205 is fixed on top.
Specifically, the heat treatment process designed in step C is：Solid solution-quenching-high temperature preageing-quick water cooling-low
Warm preageing-peak timeliness-overaging.
Specifically, selecting the heat-treatment furnace of 1000 DEG C of rated temperature in step E, 465~475 DEG C of holding temperature is dissolved, is protected
Warm 2.5~3.5h of time.
Specifically, room temperature water is selected in quenching in step F, quenching shift time is no more than 20s.
Specifically, the baking oven of 300 DEG C of rated temperature is selected to carry out twin-stage Pre-aging treatment in step G.High temperature preageing is protected
115~125 DEG C of temperature, 1~2h of soaking time, quick water cooling, transfer time are no more than 20s；Low temperature preageing holding temperature
55~65 DEG C, 10~12h of soaking time comes out of the stove air-cooled.
Specifically, the baking oven of 300 DEG C of rated temperature is selected to carry out peak timeliness processing in step H.Peak timeliness holding temperature 115
~125 DEG C, soaking time 20~for 24 hours.
Specifically, the baking oven of 300 DEG C of rated temperature is selected to carry out Wetted constructures, overaging holding temperature 160 in step I
~170 DEG C, 1~2h of soaking time.
Using the heat treatment process for becoming wall thickness thin-wall high-strength aluminium alloy closing in cylinder 100 of the present embodiment in proof strength
Under the premise of, plasticity and corrosion resisting property are improved, improves application range and the service life of such component；Specifically, at by solid solution
Reason ensures the abundant back dissolving of precipitation phase element to alloy matrix aluminum, using twin-stage of high temperature, short time+quick water cooling+low temperature when long
Pre-aging treatment increases precipitation phase nucleation rate, carries out organizational structures for the precipitation of post precipitation phase even dispersion, is conducive to carry
High alloy precipitation strength effect；It is heat-treated by peak timeliness, the intensity of change wall thickness thin-wall aluminum alloy closing in cylinder 100 is made to reach most
Big value；Again by subsequent Wetted constructures, stress can be further reduced, increases plasticity；And grain boundary precipitate can be made
Phase coalescence, continuous chainlike distribution during by peak timeliness change into discontinuous distribution, can block grain boundary corrosion channel, be conducive to
Improve corrosion resistance.
It carries out becoming wall thickness thin-wall high-strength aluminium alloy closing in cylinder using the anti-deformation heat treatment tooling 200 of above-described embodiment one
100 heat treatment process can avoid becoming in 100 heat treatment process of wall thickness thin-wall high-strength aluminium alloy closing in cylinder and undergo dramatic temperature
Variation causes to become the deformation of wall thickness thin-wall barrel or reduces deflection, improves and becomes 100 heat of wall thickness thin-wall high-strength aluminium alloy closing in cylinder
Handle qualification rate.Design vertical clamping tooling, it is ensured that become wall thickness thin-wall high-strength aluminium alloy closing in cylinder 100 in heat treatment process
Middle axial direction and radial deformation are uniform, and make axially can freely stretch；Oral area ensures to quench using hollow imitative type support bolt 203
Shrink in lip is supported the surrounding even support of bolt 203 in fire or other water coolings and cooling procedure, avoids or reduces deformation
Amount, and ensure that the gas that water vapor generates is quenched in quenching process to be discharged from oral area.
The technical barrier that high strength alumin ium alloy is applied to become wall thickness thin-wall aluminum alloy closing in cylinder 100 is further solved, it is high
Strength aluminum alloy is opposite to have larger lightweight advantage with copper and steel, and density is respectively 30%, the 35% of copper and steel, but high
The plasticity ratio copper of strength aluminum alloy and steel it is much lower, plasticity need to be improved on the basis of intensity of aluminum alloy is ensured, and reduce hot place
The deformation that is generated due to the thermal conductivity of aluminium is good, wall thickness variation is big during reason and cause to scrap.
Such as performance of the following table 1 for the closing in cylinder 100 after high-strength anticorrosion heat treatment：
Table 1
Embodiment 3
A kind of 100 high-strength anticorrosion heat treatment process of change wall thickness thin-wall aluminum alloy closing in cylinder provided in this embodiment and anti-
Tooling is deformed, is included the following steps：
The first step, anti-deformation heat treatment tooling 200 design.The spacing between disk 202 and lower part fixation disk 205 is fixed on top
Than becoming 100 high 20mm of wall thickness thin-wall high-strength aluminium alloy closing in cylinder；The back cut diameter of the inversed taper platform type hole of disk 205 is fixed in lower part
2041 is bigger 1mm than cylinder body bottom diameter, and lower port diameter 2042 is smaller 1mm than cylinder body bottom diameter；The first of top fixation disk 202 is logical
The diameter in hole is identical with cylinder oral area internal diameter；Hollow T-shaped support bolt 203 fixed link, 201 diameters are smaller 0.6mm than first through hole；
201 internal diameter size of fixed link is controlled the 80% of outer diameter, wherein, first through hole is pin hole.
Second step, according to 200 drawing of anti-deformation heat treatment tooling of design, the steel that intensity is selected to be not less than 600MPa is adopted
The method being machined into prepares tooling.
Third walks, and 100 bottom of change wall thickness thin-wall high-strength aluminium alloy closing in cylinder is placed on tooling lower part fixation disk 205 falls
In frustum type hole, fix corresponding first through hole on disk 202 from tooling top and hollow T-shaped support bolt 203 is inserted into cylinder mouth
Cylinder is fixed in tooling by portion.
4th step according to performance requirement, becomes 100 shape of wall thickness thin-wall high-strength aluminium alloy closing in cylinder, size, heat treatment number
The parameters such as amount determine the actual temp respectively walked and time parameter of the heat treatment process of design.
5th step, 475 DEG C of solid solution temperature, soaking time 3.5h.
6th step, the medium of quenching are room temperature water, transfer time 20s
7th step, processing first segment temperature is 125 DEG C, soaking time 2h at preageing, quick water cooling；Pre-aging treatment
Two sections of 65 DEG C of temperature, soaking time 12h are air-cooled after coming out of the stove.
8th step, 125 DEG C of peak timeliness treatment temperature, soaking time is for 24 hours, air-cooled after coming out of the stove.
9th step, Wetted constructures temperature are 170 DEG C, keep the temperature 2h, air-cooled after coming out of the stove.
Hollow T-shaped support bolt 203 is fixed from top on disk 202 and taken out, cylinder is removed from tooling by the tenth step.
11st step is visually inspected and becomes wall thickness thin-wall aluminum alloy closing in cylinder 100 whether there is apparent deformation, and examined with slide calliper rule
Cylinder oral area outer diameter is tested, at least detects three positions, the heat treatment of judgement cylinder is not deformed after qualification.
Embodiment 4
A kind of 100 high-strength anticorrosion heat treatment process of change wall thickness thin-wall aluminum alloy closing in cylinder provided in this embodiment and anti-
Tooling is deformed, is included the following steps：
The first step, anti-deformation heat treatment tooling 200 design.The spacing between disk 202 and lower part fixation disk 205 is fixed on top
Than becoming 100 high 10mm of wall thickness thin-wall high-strength aluminium alloy closing in cylinder；The back cut diameter 2041 of 205 inversed taper platform type hole of disk is fixed in lower part
Diameter is bigger 0.5mm than cylinder body bottom diameter, and lower port diameter 2042 is smaller 0.5mm than cylinder body bottom diameter；The bolt of disk 202 is fixed on top
The diameter in hole (i.e. first through hole) is identical with cylinder oral area internal diameter；203 fixed link of hollow T-shaped support bolt, 201 diameter compares bolt
Hole (i.e. first through hole) small 0.4mm；201 internal diameter size of fixed link is controlled the 50% of outer diameter.
Second step, according to 200 drawing of anti-deformation heat treatment tooling of design, the steel that intensity is selected to be not less than 600MPa is adopted
The method being machined into prepares tooling.
Third walks, and will become 100 bottom of wall thickness thin-wall high-strength aluminium alloy closing in cylinder and be placed on tooling lower part fixation disk 205
In inversed taper platform shape hole, fix corresponding first through hole on disk 202 from tooling top and hollow T-shaped support bolt 203 is inserted into cylinder
Cylinder shell is fixed in tooling by oral area.
4th step according to performance requirement, becomes 100 shape of wall thickness thin-wall high-strength aluminium alloy closing in cylinder, size, heat treatment number
The parameters such as amount determine the actual temp respectively walked and time parameter of the heat treatment process of design.
5th step, 465 DEG C of solid solution temperature, soaking time 2.5h.
6th step, the medium of quenching are room temperature water, transfer time 10s
7th step, processing first segment temperature is 115 DEG C, soaking time 1h at preageing, quick water cooling；Pre-aging treatment
Two sections of 55 DEG C of temperature, soaking time 10h are air-cooled after coming out of the stove.
8th step, 115 DEG C of peak timeliness treatment temperature, soaking time 20h are air-cooled after coming out of the stove.
9th step, Wetted constructures temperature are 160 DEG C, keep the temperature 1h, air-cooled after coming out of the stove.
Hollow T-shaped support bolt 203 is fixed from top on disk 202 and taken out, cylinder is removed from tooling by the tenth step.
11st step is visually inspected and becomes wall thickness thin-wall high-strength aluminium alloy closing in cylinder 100 and whether there is apparent deformation, and with card
Ruler examines cylinder oral area outer diameter, at least detects three positions, and the heat treatment of judgement cylinder is not deformed after qualification.
Embodiment 5
A kind of 100 high-strength anticorrosion heat treatment process of change wall thickness thin-wall aluminum alloy closing in cylinder provided in this embodiment and anti-
Tooling is deformed, is included the following steps：
The first step, anti-deformation heat treatment tooling 200 design.The spacing between disk 202 and lower part fixation disk 205 is fixed on top
Than becoming 100 high 15mm of wall thickness thin-wall high-strength aluminium alloy closing in cylinder；The back cut diameter 2041 of 205 inversed taper platform type hole of disk is fixed in lower part
Bigger 0.8mm than cylinder body bottom diameter, lower port diameter 2042 is smaller 0.6mm than cylinder body bottom diameter；202 pin hole of disk is fixed on top
The diameter of (i.e. first through hole) is identical with cylinder oral area internal diameter；203 fixed link of hollow T-shaped support bolt, 201 diameter compares pin hole
(i.e. first through hole) small 0.5mm；201 internal diameter size of fixed link is controlled the 70% of outer diameter.
Second step, according to 200 drawing of anti-deformation heat treatment tooling of design, the steel that intensity is selected to be not less than 600MPa is adopted
The method being machined into prepares tooling.
Third walks, and will become 100 bottom of wall thickness thin-wall high-strength aluminium alloy closing in cylinder and be placed on tooling lower part fixation disk 205
In inversed taper platform shape hole, fix corresponding first through hole on disk 202 from tooling top and hollow T-shaped support bolt 203 is inserted into cylinder
Cylinder is fixed in tooling by oral area.
4th step according to performance requirement, becomes 100 shape of wall thickness thin-wall high-strength aluminium alloy closing in cylinder, size, is heat-treated number
The parameters such as amount determine the actual temp respectively walked and time parameter of the heat treatment process of design.
5th step, 470 DEG C of solid solution temperature, soaking time 3h.
6th step, the medium of quenching are room temperature water, transfer time 15s
7th step, processing first segment temperature is 120 DEG C, soaking time 1.5h at preageing, quick water cooling；Pre-aging treatment
Second segment temperature 60 C, soaking time 11h are air-cooled after coming out of the stove.
8th step, 120 DEG C of peak timeliness treatment temperature, soaking time 22h are air-cooled after coming out of the stove.
9th step, Wetted constructures temperature are 165 DEG C, keep the temperature 1.5h, air-cooled after coming out of the stove.
Hollow T-shaped support bolt 203 is fixed from top on disk 202 and taken out, cylinder is removed from tooling by the tenth step.
11st step is visually inspected and becomes wall thickness thin-wall high-strength aluminium alloy closing in cylinder 100 and whether there is apparent deformation, and with card
Ruler examines cylinder oral area outer diameter, at least detects three positions, and the heat treatment of judgement cylinder is not deformed after qualification.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (13)
1. a kind of anti-deformation heat treatment tooling, which is characterized in that fix disk and lower part including one-to-one top from top to bottom
Fixed disk, disk is fixed on the top and the lower part is fixed the multiple fixed links set between disk by outer edge and is supported；
Disk is fixed on the top has multiple first through hole for being used to support bolt and passing through, and the bolt is used for and closing in cylinder
Cylinder oral area is clamped；
Disk is fixed in the lower part has multiple second through-holes, and second through-hole is used to hold the cylinder bottom of closing in cylinder；
Each first through hole vertically corresponds to second through-hole.
2. anti-deformation heat treatment tooling according to claim 1, which is characterized in that the fixed link is the knot of top bending
Structure.
3. anti-deformation heat treatment tooling according to claim 1, which is characterized in that there are three the fixed link settings, and three
The uniformly distributed periphery that disk and lower part fixation disk are fixed on the top of a fixed link.
4. anti-deformation heat treatment tooling according to claim 1, which is characterized in that disk and the lower part are fixed in the top
Spacing between fixed disk is higher than closing in cylinder height 10mm~20mm.
5. anti-deformation heat treatment tooling according to claim 1, which is characterized in that second through-hole is inversed taper platform shape hole
Structure, mouth structure and lower mouth structure in formation；
The aperture of the upper mouth structure is more than closing in barrel diameter 0.5mm~1mm；
The aperture of the lower mouth structure is less than closing in barrel diameter 0.5mm~1mm.
6. a kind of change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process, which is characterized in that including walking as follows
Suddenly：
Step A：According to the structure size for the cylinder oral area and cylinder body bottom for becoming wall thickness thin-wall aluminum alloy closing in cylinder, design is a kind of
Claims 1 to 5 any one of them anti-deformation heat treatment tooling；
Step B：According to the anti-deformation heat treatment tooling drawing of design, the steel that intensity is selected to meet the requirements, using mechanical processing
Method prepares tooling；
Step C：It is required according to intensity, plasticity and corrosion resistance, designs the heat treatment process for meeting performance requirement, and proposed detailed
Thin technology requirement；
Step D：Tooling is disposed vertically, wall thickness thin-wall aluminum alloy closing in cylinder body bottom will be become and be placed on tooling lower part fixation disk
It in second through-hole, keeps cylinder vertical, is fixed hollow T-shaped support bolt at the first through hole of disk corresponding position from tooling top
It is inserted into the oral area of cylinder；
Step E：Solution heat treatment is carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using heat-treatment furnace；
Step F：Wall thickness thin-wall aluminum alloy closing in cylinder tooling will be become to take out from solution heat treatment furnace, quenched, taken out, dry in the air
It is dry；
Step G：Twin-stage Pre-aging treatment is carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using baking oven, including high temperature
(be no more than peak timeliness temperature) in short-term, quick water cooling, low temperature it is long when twin-stage preageing technique；
Step H：Peak timeliness processing is carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using baking oven；
Step I：Wetted constructures are carried out to becoming wall thickness thin-wall aluminum alloy closing in cylinder tooling using baking oven；
Step J：After equipped with the cooling of wall thickness thin-wall aluminum alloy closing in cylinder tooling is become, removed from top fixation disk hollow T-shaped
Bolt is supported, cylinder is removed from tooling；
Step K：Quality inspection is carried out to closing in cylinder after heat treatment.
7. change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process according to claim 6, feature
It is, the tensile strength for the steel alloy that tooling material uses should be greater than or equal to 600MPa in above-mentioned steps B.
8. change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process according to claim 6, feature
It is, heat treatment process includes successively in above-mentioned steps C：Solid solution-quenching-high temperature, short time preageing-quick water cooling-low
Preageing -- peak timeliness-overaging when temperature is long.
9. change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process according to claim 6, feature
It is, is 465~475 DEG C in the solution treatment holding temperature of above-mentioned steps E middle cylinder bodies, 2.5~3.5h of soaking time.
10. change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process according to claim 6, feature
It is, the medium quenched in above-mentioned steps F uses room temperature water, and transfer time, (blow-on door enters to integral quenching in room temperature water) was less than
Or equal to 20s.
11. change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process according to claim 6, feature
It is, 115~125 DEG C, 1~2h of soaking time of the high temperature pre-age temperature of twin-stage preageing in above-mentioned steps G, it is then rear fast
Fast water cooling, transfer time are less than or equal to 20s, 55~65 DEG C of low temperature pre-age temperature, and 10~12h of time comes out of the stove air-cooled.
12. change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process according to claim 6, feature
It is, peak timeliness temperature is 115~125 DEG C in above-mentioned steps H, soaking time 20~for 24 hours, it comes out of the stove air-cooled.
13. change wall thickness thin-wall aluminum alloy closing in cylinder high-strength anticorrosion heat treatment process according to claim 6, feature
It is, overaging holding temperature is 160~170 DEG C in above-mentioned steps I, and 1~2h of soaking time comes out of the stove air-cooled.
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| CN113249665A (en) * | 2021-07-02 | 2021-08-13 | 中国航发北京航空材料研究院 | Forming method of aluminum alloy component |
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| CN108265171B (en) | 2019-07-30 |
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