CN106984661A - Nickel-base alloy bar hot extrusion technique - Google Patents
Nickel-base alloy bar hot extrusion technique Download PDFInfo
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- CN106984661A CN106984661A CN201710427857.5A CN201710427857A CN106984661A CN 106984661 A CN106984661 A CN 106984661A CN 201710427857 A CN201710427857 A CN 201710427857A CN 106984661 A CN106984661 A CN 106984661A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of nickel-base alloy bar hot extrusion technique, comprise the following steps：A) the target angle angle value α of hot extruding die, is calculated according to equation below0, the formula is：Wherein, π values are that 3.14, P is extrusion ratio, and V is the extruding muzzle velocity of hot extruding die, and Q is that nickel-base alloy dynamic recrystallization activates energy, and T is the thermodynamic temperature of hot extrusion；B), the target angle angle value α of the hot extruding die obtained according to calculating0, select hot extruding die.The specific bar hot extrusion technique flow of formulation that can be rapidly and efficiently by the hot extrusion technique, obtained bar is without defects such as surface fish scale crackle, noses, and bar size, close to finished product, surface can meet requirement after simple rubbing down.Also, without the vexed car of hot extrusion in process.
Description
Technical field
The present invention relates to metallurgical technology field, more particularly to a kind of nickel-base alloy bar hot extrusion technique.
Background technology
Nickel-base alloy due to the excellent comprehensive mechanical performance such as corrosion-resistant, anti-oxidant, Aeronautics and Astronautics, the energy and
Petrochemical industry extensive use.Nickel-base alloy because constituent content is high, Deformation Resistance is big, can processing temperature interval be narrow, group
Knit a series of features such as be difficult to control to, how improving production efficiency, lumber recovery, realize that structure property Comprehensive Control is particularly important.
For nickel-base alloy rods, method widely used at present is open die forging or footpath forging.
For flat-die forging, generally using multiple upset, pulling technique, so that its as-cast structure is crushed completely, crystal grain
It is tiny and uniform.But, flat-die forging can not a fire complete, and forging's block dimension precision is poor, surface restricted to ratio of height to diameter
Easy to crack, forging process human factor is more, lumber recovery and low production efficiency.And for footpath forging process, its great advantage is outer
Shape size can be controlled accurately, quasi- isothermal forging, one-heating forming, production efficiency high, be FMT relatively advanced at present.But
It is that because pulling process simply similar to open die forging is forged in footpath, therefore its interior tissue form is not easily controlled, and due to footpath
Forging machine load is limited, and every time deflection can not be excessive, so forging often occurs forging the phenomenons such as impermeable, mixed crystal, so as to rear
The adjustment of phase heat-treated sturcture brings adverse effect.And in the technique assignment procedure that hot-extrusion method produces bar, selection is provided
There is the hot extruding die of accurate angle extremely important, if selection is unreasonable.If selection is unreasonable, often there is vexed car, surface
The defects such as fish scale crackle, nose.Bar is produced using hot-extrusion method at present, for specific production requirement, such as technique will
Ask accurately to select extremely difficult with suitable hot extruding die, waste time and energy in the selection process, and precision is not ensured, is needed
Repetition test is wanted to grope.Even if success, generally requires experienced master craftsman rule of thumb to select hot extruding die, to empirical value
It is required that higher.
The content of the invention
Have in view of that, the present invention provides a kind of preparation concrete technology flow process that can be rapidly and efficiently, and obtains high finished product rate
The nickel-base alloy bar hot extrusion technique of the bar of state, to solve problems of the prior art.
A kind of nickel-base alloy bar hot extrusion technique is provided according to the present invention, is comprised the following steps：
A) the target angle angle value α of hot extruding die, is calculated according to equation below0, the formula is：
Wherein, π values are that 3.14, P is extrusion ratio, and V is the extruding muzzle velocity of hot extruding die, and Q is nickel-base alloy dynamic
Recrystallization activation energy, T is the thermodynamic temperature of hot extrusion；
B), the target angle angle value α of the hot extruding die obtained according to calculating0, select hot extruding die.
Preferably, treat selection the hot extruding die angle value α from childhood angle value to big angle angle value into series set,
Wherein, the hot extruding die of angle value, to the hot extruding die of big angle angle value, a heat is set at interval of predetermined angle δ from childhood
Extrusion die.
Preferably, the angle value for treating the hot extruding die of selection is：α=β+(n-1) δ,
Wherein, during n is hot extruding die series, angle value is to the sequence of big angle angle value from childhood for hot extruding die, angle based on β
Value.
Preferably, the predetermined angle δ is 4 ° -6 °.
Preferably, the step b) includes：
The target angle angle value α of obtained hot extruding die will be calculated0The angle value α of the mould in die series with treating selection
Contrasted, determine the immediate hot extruding die of angle value.
Preferably, the step b) also includes：
By the target angle angle value α of the obtained extrusion die of calculating0With the immediate hot extruding die of fixed angle value
Angle value is made the difference and taken absolute value, and is obtained | α0-α|；
According to what is obtained | α0- α | contrasted with the preset angle angle value δ, determine whether to meet the requirements.
Preferably, the basis is obtained | α0- α | contrasted with the preset angle angle value δ, determine whether to meet the requirements
The step of include：
According to formula | α0- α |≤K δ, judge whether the hot extruding die with angle value α selected meets the requirements, its
Middle K is coefficient；
If it is determined that the hot extruding die with angle value α selected is undesirable, then to the technological parameter of hot extrusion
T, P, V are micro-adjusted.
Preferably, the span of the COEFFICIENT K is：0 ＜ K≤3.
, can be according to treating different parameters and performance requirement according to the nickel-base alloy bar hot extrusion technique that provides of the present invention
Bar is formulated, the specific hot extrusion technique flow of formulation rapidly and efficiently, even inexperienced technologist also can be according to mesh
The requirement of mark bar quickly carries out technological preparation, reduces skill requirement.Especially to main technologic parameters, and critical process stream
The control of journey, precisely in place, extrudes obtained bar quality close to finished product, without bad defect, it is only necessary to which simple post-production is just
It can be made into finished product.The trouble that repetition trial-production is brought is avoided, workload is reduced and cost is wasted, improve operating efficiency.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described.In all of the figs, similar element
Or part is general by similar reference mark.In accompanying drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 shows the flow chart of nickel-base alloy bar hot extrusion technique according to embodiments of the present invention.
Fig. 2 shows the structural representation of bar hot extruding die according to embodiments of the present invention.
Fig. 3 shows the step S02 of bar hot extruding die according to embodiments of the present invention) flow chart.
In figure：Extrude charging aperture 1, squeeze out material mouth 2, squeezing passage 100.
Embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.Following examples are only used for
Clearly illustrate technical scheme, therefore be only used as example, and the protection model of the present invention can not be limited with this
Enclose.
Fig. 1 shows the flow chart of nickel-base alloy bar hot extrusion technique according to embodiments of the present invention.Fig. 2 shows root
According to the structural representation of the bar hot extruding die of the embodiment of the present invention.In Fig. 2, the extruding charging aperture 1 and extruding and discharging of hot-die
Mouth 2 is respectively arranged on the two ends of hot extruding die axially, and is connected through squeezing passage 100.Fed during for the ease of extruding, hot extrusion
The end of extruding charging aperture 1 of pressing mold is set to funnel-shaped structure, same through on the section of hot extruding die axis, funnel-shaped structure
Angle between inwall and squeezing passage axis is extrusion die angle [alpha].
With reference to Fig. 1-2, below by embodiment one, embodiment two and embodiment three to nickel-base alloy bar hot extrusion technique
It is described in detail.
Embodiment one
In the embodiment, hot extrusion nickel-base alloy bar, its main component percent mass proportioning is：Ni bases, 22%Cr,
12%Co, 9%Mo, 1.2%Al, 0.44%Ti.
S01 the target angle angle value α of hot extruding die), is calculated according to equation below0, the formula is：
Wherein, π is pi, and value is 3.14；P is extrusion ratio；V is the extruding muzzle velocity of hot extruding die, unit m/
s；Q is that nickel-base alloy dynamic recrystallization activates energy, and its numerical value can inquire about acquisition, unit K J/mol in the literature；T is hot extrusion
Thermodynamic temperature, unit is K.
In the embodiment, the dynamic recrystallization activation of nickel-base alloy can be 549KJ/mol.Extrusion ratio is 5, and extrusion speed is
3m/s, extrusion temperature is 1220 DEG C.Known parameters are brought into above-mentioned formula to obtain：
S02), the target angle angle value α of the hot extruding die obtained according to calculating0, select hot extruding die.
In the embodiment, treat that angle value is set to big angle angle value into series from childhood by the angle value α of the hot extruding die of selection
Put.Wherein, from the hot extruding die of low-angle value to the hot extruding die of big angle angle value, one hot extrusion is set at interval of predetermined angle δ
Mould.The angle value for treating the hot extruding die of selection is：α=β+(n-1) δ.In formula, n be hot extruding die series in, hot extrusion
Angle value is to the sequence of big angle angle value from childhood for pressing mold, and value is 1,2,3 ....The predetermined angle δ is δ in 4 ° -6 °, the embodiment
Elect 5 ° as, basic angle value β elects 10 ° as.Therefore, in the embodiment, in the hot extruding die series for treating selection, it is provided with angle value
The extrusion die of 10 °, 15 °, 20 °, 25 °, 30 °, 35 ° etc. series of angles.Specifically extrusion die angle can be calculated according to above-mentioned formula,
It will not enumerate herein.
Specifically, with reference to Fig. 3, the step includes:
S021 the target angle angle value α of obtained hot extruding die will), be calculated0The mould in die series with treating selection
Angle value α is contrasted, and determines the immediate hot extruding die of angle value.
Specifically, according to the extrusion die target angle angle value α tried to achieve0=34.12 °, with the die angle in serial die
Contrasted, the target angle angle value tried to achieve and the extrusion die angle with 35 ° of angles in serial die are closest.
S022), by the target angle angle value α of the obtained extrusion die of calculating0With the immediate hot extrusion of fixed angle value
The angle value α of pressing mold is made the difference and taken absolute value, and is obtained | α0-α|。
In this step, by the target angle angle value α of the obtained extrusion die of calculating0=34.12 ° and fixed angle value
Angle value α=35 ° of immediate hot extruding die are made the difference and taken absolute value, and are obtained | α0- α |, obtain | 34.12-35 |=
0.88°。
S023), basis is obtained | α0- α | contrasted with the preset angle angle value δ, determine whether to meet the requirements.
Specifically, according to formula | α0- α |≤K δ, judge whether the hot extruding die with angle value α selected meets
It is required that, wherein K is coefficient, and its span is 0 ＜ K≤3, is taken as 0.25 in the embodiment.According to formula | α0-α|≤K·δ
0.88 °≤0.25 × 5 ° establishment is obtained, is met the requirements.
According to above-mentioned steps, final selected angle value is 35 ° of extrusion die from serial die.Then, according to follow-up
Normal process is processed, and acquisition size is φ 80mm bars.Obtained bar without defects such as surface fish scale crackle, noses, and
And bar size, close to finished product, surface can meet requirement after simple rubbing down.Also, without the vexed car of hot extrusion in process.
If it is determined that, then can be to heat it should be noted that the hot extruding die with angle value α selected is undesirable
The technological parameter of extruding, for example, be micro-adjusted at least one of which parameter in T, P, V, then repeat the above steps, directly
Suitable hot extruding die is selected to choosing.
Embodiment two
In the embodiment, hot extrusion nickel-base alloy bar, its main component percent mass proportioning is：
Ni bases, 22%Cr, 9%Mo, 5%Nb, 0.2%Ti.
S01 the target angle angle value α of hot extruding die), is calculated according to equation below0, the formula is：
Wherein, π is pi, and value is 3.14；P is extrusion ratio；V is the extruding muzzle velocity of hot extruding die, unit m/
s；Q is that nickel-base alloy dynamic recrystallization activates energy, and its numerical value can inquire about acquisition, unit K J/mol in the literature；T is hot extrusion
Thermodynamic temperature, unit is K.
In the embodiment, the dynamic recrystallization activation of nickel-base alloy can be 522KJ/mol.Extrusion ratio is 4, and extrusion speed is
4m/s, extrusion temperature is 1220 DEG C.Known parameters are brought into above-mentioned formula to obtain：
S02), the target angle angle value α of the hot extruding die obtained according to calculating0, select hot extruding die.
In the embodiment, treat that angle value is set to big angle angle value into series from childhood by the angle value α of the hot extruding die of selection
Put.Wherein, from the hot extruding die of low-angle value to the hot extruding die of big angle angle value, one hot extrusion is set at interval of predetermined angle δ
Mould.The angle value for treating the hot extruding die of selection is：α=β+(n-1) δ.In formula, n be hot extruding die series in, hot extrusion
Angle value is to the sequence of big angle angle value from childhood for pressing mold, and value is 1,2,3 ....The predetermined angle δ is δ in 4 ° -6 °, the embodiment
Elect 5 ° as, basic angle value β elects 10 ° as.Therefore, in the embodiment, in the hot extruding die series for treating selection, it is provided with angle value
The extrusion die of 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 ° etc. series of angles.Specific extrusion die angle can be according to above-mentioned formula
Calculate, will not enumerate herein.
Specifically, with reference to Fig. 3, the step includes:
S021 the target angle angle value α of obtained hot extruding die will), be calculated0The mould in die series with treating selection
Angle value α is contrasted, and determines the immediate hot extruding die of angle value.
Specifically, according to the extrusion die target angle angle value α tried to achieve0=39 °, carried out with the die angle in serial die
Contrast, the target angle angle value tried to achieve and the extrusion die angle with 40 ° of angles in serial die are closest.
S022), by the target angle angle value α of the obtained extrusion die of calculating0With the immediate hot extrusion of fixed angle value
The angle value α of pressing mold is made the difference and taken absolute value, and is obtained | α0-α|。
In this step, by the target angle angle value α of the obtained extrusion die of calculating0=34.12 ° and fixed angle value
Angle value α=35 ° of immediate hot extruding die are made the difference and taken absolute value, and are obtained | α0- α |, obtain | 39-40 |=1 °.
S023), basis is obtained | α0- α | contrasted with the preset angle angle value δ, determine whether to meet the requirements.
Specifically, according to formula | α0- α |≤K δ, judge whether the hot extruding die with angle value α selected meets
It is required that, wherein K is coefficient, and its span is 0 ＜ K≤3, is taken as 0.25 in the embodiment.According to formula | α0-α|≤K·δ
1 °≤0.25 × 5 ° establishment is obtained, is met the requirements.
According to above-mentioned steps, final selected angle value is 40 ° of extrusion die from serial die.Then, according to follow-up
Normal process is processed, and acquisition size is φ 85mm bars.Obtained bar without defects such as surface fish scale crackle, noses, and
And bar size, close to finished product, surface can meet requirement after simple rubbing down.Also, without the vexed car of hot extrusion in process.
If it is determined that, then can be to heat it should be noted that the hot extruding die with angle value α selected is undesirable
The technological parameter of extruding, such as, to being micro-adjusted at least within to a parameter in T, P, V, then repeat the above steps,
Until suitable hot extruding die is selected in choosing.
Embodiment three
In the embodiment, hot extrusion nickel-base alloy bar, its main component percent mass proportioning is：
Ni bases, 25%Cr, 20%Co, 0.5%Mo, 1.5%Nb, 1.3%Ti, 1.3%Al.
S01 the target angle angle value α of hot extruding die), is calculated according to equation below0, the formula is：
Wherein, π is pi, and value is 3.14；P is extrusion ratio；V is the extruding muzzle velocity of hot extruding die, unit m/
s；Q is that nickel-base alloy dynamic recrystallization activates energy, and its numerical value can inquire about acquisition, unit K J/mol in the literature；T is hot extrusion
Thermodynamic temperature, unit is K.
In the embodiment, the dynamic recrystallization activation of nickel-base alloy can be 537KJ/mol.Extrusion ratio is 5, and extrusion speed is
4m/s, extrusion temperature is 1180 DEG C.Known parameters are brought into above-mentioned formula to obtain：
S02), the target angle angle value α of the hot extruding die obtained according to calculating0, select hot extruding die.
In the embodiment, treat that angle value is set to big angle angle value into series from childhood by the angle value α of the hot extruding die of selection
Put.Wherein, from the hot extruding die of low-angle value to the hot extruding die of big angle angle value, one hot extrusion is set at interval of predetermined angle δ
Mould.The angle value for treating the hot extruding die of selection is：α=β+(n-1) δ.In formula, n be hot extruding die series in, hot extrusion
Angle value is to the sequence of big angle angle value from childhood for pressing mold, and value is 1,2,3 ....The predetermined angle δ is δ in 4 ° -6 °, the embodiment
Elect 5 ° as, basic angle value β elects 10 ° as.Therefore, in the embodiment, in the hot extruding die series for treating selection, it is provided with angle value
The extrusion die of 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 °, 45 °, 50 ° etc. series of angles.Specific extrusion die angle can basis
Above-mentioned formula is calculated, will not enumerate herein.
Specifically, with reference to Fig. 3, the step includes:
S021 the target angle angle value α of obtained hot extruding die will), be calculated0The mould in die series with treating selection
Angle value α is contrasted, and determines the immediate hot extruding die of angle value.
Specifically, according to the extrusion die target angle angle value α tried to achieve0=50.13 °, with the die angle in serial die
Contrasted, the target angle angle value tried to achieve and the extrusion die angle with 50 ° of angles in serial die are closest.
S022), by the target angle angle value α of the obtained extrusion die of calculating0With the immediate hot extrusion of fixed angle value
The angle value α of pressing mold is made the difference and taken absolute value, and is obtained | α0-α|。
In this step, by the target angle angle value α of the obtained extrusion die of calculating0=50.13 ° and fixed angle value
Angle value α=50 ° of immediate hot extruding die are made the difference and taken absolute value, and are obtained | α0- α |, obtain | 50.13-50 |=
0.13°。
S023), basis is obtained | α0- α | contrasted with the preset angle angle value δ, determine whether to meet the requirements.
Specifically, according to formula | α0- α |≤K δ, judge whether the hot extruding die with angle value α selected meets
It is required that, wherein K is coefficient, and its span is 0 ＜ K≤3, is taken as 0.25 in the embodiment.According to formula | α0-α|≤K·δ
0.13 °≤0.25 × 5 ° establishment is obtained, is met the requirements.
According to above-mentioned steps, final selected angle value is 50 ° of extrusion die from serial die.Then, according to follow-up
Normal process is processed, and acquisition size is φ 80mm bars.Obtained bar without defects such as surface fish scale crackle, noses, and
And bar size, close to finished product, surface can meet requirement after simple rubbing down.Also, without the vexed car of hot extrusion in process.
If it is determined that, then can be to heat it should be noted that the hot extruding die with angle value α selected is undesirable
The technological parameter of extruding, for example, be micro-adjusted at least one of which parameter in T, P, V, then repeat the above steps, directly
Suitable hot extruding die is selected to choosing.
Nickel-base alloy bar hot extrusion technique in the application, can be according to the bar system for treating different parameters and performance requirement
It is fixed, the specific hot extrusion technique flow of formulation rapidly and efficiently, even inexperienced technologist also can be according to target bar
Requirement quickly carry out technological preparation, reduce skill requirement.Especially to main technologic parameters, and critical process flow control
System, precisely in place, extrudes obtained bar quality close to finished product, without bad defect, it is only necessary to which simple post-production just can be made into
Finished product.The trouble that repetition trial-production is brought is avoided, workload is reduced and cost is wasted, improve operating efficiency.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme, it all should cover among the claim of the present invention and the scope of specification.Especially, as long as in the absence of knot
Structure conflicts, and the every technical characteristic being previously mentioned in each embodiment can combine in any way.The present invention does not limit to
In specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.
Claims (8)
1. a kind of nickel-base alloy bar hot extrusion technique, it is characterised in that comprise the following steps：
A) the target angle angle value α of hot extruding die, is calculated according to equation below0, the formula is：
Wherein, π values are that 3.14, P is extrusion ratio, and V is the extruding muzzle velocity of hot extruding die, and Q is that nickel-base alloy is dynamically tied again
Crystalline substance activation energy, T is the thermodynamic temperature of hot extrusion；
B), the target angle angle value α of the hot extruding die obtained according to calculating0, select hot extruding die.
2. nickel-base alloy bar hot extrusion technique according to claim 1, it is characterised in that treat the hot extrusion of selection
Angle value is set the angle value α of mould to big angle angle value into series from childhood,
Wherein, the hot extruding die of angle value, to the hot extruding die of big angle angle value, a hot extrusion is set at interval of predetermined angle δ from childhood
Mould.
3. nickel-base alloy bar hot extrusion technique according to claim 2, it is characterised in that treat the hot extrusion of selection
The angle value of mould is：α=β+(n-1) δ,
Wherein, during n is hot extruding die series, angle value is to the sequence of big angle angle value from childhood for hot extruding die, angle value based on β.
4. nickel-base alloy bar hot extrusion technique according to claim 3, it is characterised in that the predetermined angle δ is 4 °-
6°。
5. nickel-base alloy bar hot extrusion technique according to claim 2, it is characterised in that the step b) includes：
The target angle angle value α of obtained hot extruding die will be calculated0The angle value α of the mould in die series with treating selection is carried out
Contrast, determines the immediate hot extruding die of angle value.
6. nickel-base alloy bar hot extrusion technique according to claim 5, it is characterised in that the step b) also includes：
By the target angle angle value α of the obtained extrusion die of calculating0With the angle value of the immediate hot extruding die of fixed angle value
Made the difference and taken absolute value, obtained | α0-α|；
According to what is obtained | α0- α | contrasted with the preset angle angle value δ, determine whether to meet the requirements.
7. nickel-base alloy bar hot extrusion technique according to claim 6, it is characterised in that what the basis was obtained | α0-α
| contrasted with the preset angle angle value δ, the step of determining whether to meet the requirements includes：
According to formula | α0- α |≤K δ, judge whether the hot extruding die with angle value α selected meets the requirements, wherein K is
Coefficient；
If it is determined that the hot extruding die with angle value α selected is undesirable, then to technological parameter T, P, V of hot extrusion
It is micro-adjusted.
8. nickel-base alloy bar hot extrusion technique according to claim 7, it is characterised in that the value model of the COEFFICIENT K
Enclose for：0 ＜ K≤3.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000167619A (en) * | 1998-12-03 | 2000-06-20 | Daido Steel Co Ltd | Extruding die, and extruding method |
| JP2008126256A (en) * | 2006-11-20 | 2008-06-05 | Sanyo Special Steel Co Ltd | Tool for hot extrusion press |
| CN103639220A (en) * | 2013-12-11 | 2014-03-19 | 西北有色金属研究院 | Extrusion forming method of nickel alloy tube blank |
| CN104226709A (en) * | 2014-09-19 | 2014-12-24 | 长沙新振升集团有限公司 | High-speed hot extrusion die |
| CN204220659U (en) * | 2014-10-31 | 2015-03-25 | 无锡海特铝业有限公司 | A kind of hot-extrusion mold of rods and bars of aluminium alloy |
| CN106650112A (en) * | 2016-12-26 | 2017-05-10 | 南京工程学院 | Method and device for acquiring thermal extrusion technological parameters of nickel base alloy tube stock |
-
2017
- 2017-06-08 CN CN201710427857.5A patent/CN106984661B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000167619A (en) * | 1998-12-03 | 2000-06-20 | Daido Steel Co Ltd | Extruding die, and extruding method |
| JP2008126256A (en) * | 2006-11-20 | 2008-06-05 | Sanyo Special Steel Co Ltd | Tool for hot extrusion press |
| CN103639220A (en) * | 2013-12-11 | 2014-03-19 | 西北有色金属研究院 | Extrusion forming method of nickel alloy tube blank |
| CN104226709A (en) * | 2014-09-19 | 2014-12-24 | 长沙新振升集团有限公司 | High-speed hot extrusion die |
| CN204220659U (en) * | 2014-10-31 | 2015-03-25 | 无锡海特铝业有限公司 | A kind of hot-extrusion mold of rods and bars of aluminium alloy |
| CN106650112A (en) * | 2016-12-26 | 2017-05-10 | 南京工程学院 | Method and device for acquiring thermal extrusion technological parameters of nickel base alloy tube stock |
Non-Patent Citations (1)
| Title |
|---|
| 王宝顺等: "G3镍基合金热挤压模具型腔优化设计", 《稀有金属材料与工程》 * |
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