CN103286151B - Preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections - Google Patents

Preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections Download PDF

Info

Publication number
CN103286151B
CN103286151B CN201210046798.4A CN201210046798A CN103286151B CN 103286151 B CN103286151 B CN 103286151B CN 201210046798 A CN201210046798 A CN 201210046798A CN 103286151 B CN103286151 B CN 103286151B
Authority
CN
China
Prior art keywords
band
variable cross
internal
aluminium
squeezing needle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201210046798.4A
Other languages
Chinese (zh)
Other versions
CN103286151A (en
Inventor
余荣华
袁鹏斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI HILONG DRILL PIPE CO Ltd
SHANGHAI HAILONG PETROLEUM PIPE MATERIAL INSTITUTE
Original Assignee
SHANGHAI HILONG DRILL PIPE CO Ltd
SHANGHAI HAILONG PETROLEUM PIPE MATERIAL INSTITUTE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI HILONG DRILL PIPE CO Ltd, SHANGHAI HAILONG PETROLEUM PIPE MATERIAL INSTITUTE filed Critical SHANGHAI HILONG DRILL PIPE CO Ltd
Priority to CN201210046798.4A priority Critical patent/CN103286151B/en
Publication of CN103286151A publication Critical patent/CN103286151A/en
Application granted granted Critical
Publication of CN103286151B publication Critical patent/CN103286151B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections. The preparation device adopts an extrusion pin and an extrusion die body as extrusion moulds; the extrusion die body is an integral extrusion die with a die hole, and two reducer sizing zones are arranged in the die hole at an interval along an axial direction and are in bevel connection; a second working zone, a reducing zone and a first working zone are arranged from the front end of the extrusion die to the back at intervals along an axial direction, the outer diameter of the first working zone is larger than that of the second working zone, the outer diameter of the second working zone is larger than that of the reducing zone, and the two working zones are in bevel connection with the reducing zone; when the aluminum alloy pipes are manufactured, the extrusion amount of an aluminum alloy ingot and the position of the extrusion pin inside the extrusion die are respectively controlled through a control system so as to obtain the inside and/or outside thickened aluminum alloy pipes. With the utilization of the preparation device and the method, the inside and/or outside thickened aluminum alloy pipes with variable cross sections can be manufactured, and the defects of the traditional manufacturing methods are overcome, so that the manufacturing quality and efficiency of the aluminum alloy pipes with variable cross sections are improved.

Description

Make the preparation facilitiess with internal-external thickening form variable cross-section aluminium-alloy pipe and method
Technical field
The present invention relates to a kind of make the preparation facilitiess with internal-external thickening form variable cross-section aluminium-alloy pipe and method.
Background technology
Aluminium is the second largest metal material for being only second to steel, and recent decades development is very rapid, in national economy and people The each field of people's livelihood work obtains quite varied application.With the development and the continuous progress of science and technology of national economy, to pipe Material section proposes diversified requirement, and general pipe is no longer most preferred version, therefore, occur in that variable cross-section The development and exploitation of aluminium alloy pipe.Abroad, the kind quantity of variable cross-section aluminium drill pipe tubing, production scale and quality water It is flat to be all greatly improved.Variable cross-section aluminium drill pipe tubing is mainly characterized by greatest extent meeting the strong of various parts Degree and rigidity requirement, can be designed various parts by equal strength, not only safe and reliable, and can significantly mitigate the weight of part Amount, saving technique loss, reduces machining period and the amount of lightening one's labor, and reduces the cost, and improves Social benefit and economic benefit.Industry Although developed country has been developed over producing the production method and technology of various variable cross-section aluminium drill pipes, but still can not be large quantities of The stable production of amount, and much kind is still among development, and China is at present or blank in manufacture variable cross-section aluminium alloy pipe, XXL is needed to develop dynamics.
The application of variable cross-section aluminium alloy pipe will be more and more wider.The current application of variable cross-section aluminium alloy pipe is for example:Using In the aluminium drill pipe of the various complex drillings such as ultra-deep well drilling, directed drilling or shelf sea drilling well.Aluminium drill pipe pipe Body is exactly a kind of varying cross-section duct that body two-end part is external upset (EU), interior thickening or internal-external thickening form.
At present, both at home and abroad the most frequently used extruding tool and mould of extruding variable cross-section tubing is using many set segmental mandrel substep extruding bases This tube portions and Varied section part.This be accomplished by extrusion process shut down, so as to more mold exchange and adjustment mechanism, Jing it is normal because Mold section combination is not good, the gap of mold section combination is big, makes the metal solid size of tube portions exceeded.Due to being squeezed using segmentation There is mould and damage tube surfaces in pressure, manual mold changing, affect surface quality easily at nearly transition region;For dimensional accuracy and table The higher product of face prescription, generally requires to carry out follow-up machining, from giving full play to the characteristics of prevent extruding.It is special It is not that these extruding tool and moulds can only extrude the variable cross-section tubing of the ascending one-shot change in section, section cannot be extruded by big Repeat the continuous variable cross section tubing or special-shaped part of change to little, ascending again, thus irregular section can not be given full play to Superiority, limit the kind and range of application of variable cross-section extrusion.
Patent documentation CN201482818U, CN201482817U and CN102019303A are respectively directed to make interior thickening and increasing The extrusion die of thick protector aluminium drill pipe, the extrusion die for making external upset aluminium drill pipe and aluminium alloy drill pipe body Preparation facilitiess and method, these schemes have respective specific aim, otherwise varied with this preparation facilities and method, each have not With advantage and use object.
The content of the invention
The technical problem to be solved is to provide a kind made from internal-external thickening form variable cross-section aluminium-alloy pipe Preparation facilitiess and method, using this apparatus and method the variable cross-section aluminium alloy pipe with internal-external thickening form can be made, and it overcomes The defect of conventional fabrication method, improves the fabricating quality and efficiency of variable cross-section aluminium alloy pipe.
To solve above-mentioned technical problem, the present invention makes the preparation facilitiess with internal-external thickening form variable cross-section aluminium-alloy pipe, Including extruder and extruding tool and mould, the extruder is double-acting extruding machine, and the extruding tool and mould includes recipient, extruding Axle, squeezing needle and extrusion die, the extrusion axis is located in the recipient, and the squeezing needle is located at the center of the extrusion axis and leads to In hole, the extrusion die is located at the recipient head end, and the extruder is to the squeezing needle independent control, it is characterised in that: The extrusion die is the monolithic extruded mould of a nib, and the extrusion die nib is respectively separated is provided with the sizing of reducing first vertically Band and the second calibrating strap, the second calibrating strap internal diameter be more than the first calibrating strap internal diameter, the first calibrating strap internal diameter by Variable cross-section aluminium-alloy pipe nominal outside diameter determine, the second calibrating strap internal diameter by variable cross-section aluminium-alloy pipe internal-external thickening end external diameter Determine, inclined-plane connection between first calibrating strap and the second calibrating strap, the squeezing needle front end is spaced successively vertically backward The work band of reducing second, footpath contracting band and the first work band are provided with, the first work band control variable cross-section aluminium-alloy pipe is nominally interior Footpath, the first work band external diameter is determined that the second work band controls variable cross-section aluminium alloy by variable cross-section aluminium-alloy pipe nominal inside diameter The internal diameter at pipe internal-external thickening position, described second works is determined with external diameter by variable cross-section aluminium-alloy pipe thicken position internal diameter, first More than the second work with external diameter, the second work band external diameter contracts with external diameter, the first work band, footpath contracting work band external diameter more than footpath Inclined-plane rounding off connection between band and the second work band.
To ensure that pressing material circulation has sufficient free air space, institute during extruding variable cross-section aluminium-alloy pipe thicken position The difference for stating extrusion die the first calibrating strap transverse section and squeezing needle footpath contracting band cross sectional area is horizontal not less than the calibrating strap of extrusion die second The difference of section and the work band cross sectional area of squeezing needle second.
The method with internal-external thickening form variable cross-section aluminium-alloy pipe is made using above-mentioned preparation facilitiess to comprise the steps:
Step one:Preheated aluminium alloy cast ingot is loaded in recipient first, mobile extrusion axis enters recipient, will extrude Pin is squeezed in aluminium alloy cast ingot through extrusion axis central through hole, and makes extruding by the control squeezing needle reach of squeezing needle control system Second work band of pin moves into extrusion die nib and is located at the calibrating strap of extrusion die second, and using extrusion axis control system extruding is started, Band internal-external thickening form variable cross-section is controlled by the work band of squeezing needle second under extruding force effect in this position aluminium alloy cast ingot The upset end internal diameter of aluminium-alloy pipe, the calibrating strap of extrusion die second upset end of the control with internal-external thickening form variable cross-section aluminium-alloy pipe External diameter, is finally squeezed into band internal-external thickening form variable cross-section aluminium-alloy pipe upset end;The footpath contracting band of squeezing needle and the of extrusion die The annular space that one calibrating strap is constituted provides the aluminium alloy extruded material of abundance in pressing steps for extruding aluminium alloy upset end;
Step 2:After the length with internal-external thickening form variable cross-section aluminium-alloy pipe upset end reaches design requirement length, Extrusion axis control system controls extruding aluminium alloy ingot casting, and squeezing needle control system moves forward squeezing needle, and at this moment, extrusion die first is determined The work gap of band and footpath contracting band intermediate incline between the two of footpath band and squeezing needle first is gradually reduced and accurately controls extrusion axis Displacement and control aluminium alloy cast ingot amount of compression, final extruding formed band internal-external thickening form variable cross-section aluminium-alloy pipe add thicker than Cross section;
Step 3:Extrusion axis control system continues extruding aluminium alloy ingot casting, and squeezing needle control system makes squeezing needle reach The work band of squeezing needle first is located at the first calibrating strap of extrusion die position, by the work band control band internal-external thickening shape of squeezing needle first The internal diameter of the nominal body of formula variable cross-section aluminium-alloy pipe, controls band internal-external thickening form variable cross-section aluminum and closes with the calibrating strap of extrusion die first The external diameter of the nominal body of gold pipe;At this moment the annular space between the work of squeezing needle first band and the calibrating strap of extrusion die first is that aluminum is closed The minimum space passed through during gold extruding, so extrudes control and is configured to the nominal body of band internal-external thickening form variable cross-section aluminium-alloy pipe Part;
Step 4:Extrusion axis control system controls extruding aluminium alloy ingot casting, when band internal-external thickening form variable cross-section aluminium alloy The length for managing nominal body is reached after design requirement, and squeezing needle control system is moved rearwards by squeezing needle, the sizing of extrusion die first The work gap of band and footpath contracting band intermediate incline between the two of band and squeezing needle first gradually increases and accurate control extrusion axis Displacement and control aluminium alloy cast ingot amount of compression, so extrude control be configured to internal-external thickening form variable cross-section aluminium-alloy pipe by Nominal body is gradually to the thickening changeover portion of upset end transition;
Step 5:Extrusion axis control system continues extruding aluminium alloy ingot casting, and squeezing needle control system is moved back by squeezing needle It is dynamic to make the second of squeezing needle to work band positioned at the calibrating strap of extrusion die second, by the work band control band internal-external thickening of squeezing needle second Another upset end internal diameter of form variable cross-section aluminium-alloy pipe, the calibrating strap of extrusion die second control band internal-external thickening form variable cross-section aluminum is closed Another upset end external diameter of gold pipe, is so squeezed into again another upset end of band internal-external thickening form variable cross-section aluminium-alloy pipe.
Due to the present invention make the preparation facilitiess with internal-external thickening form variable cross-section aluminium-alloy pipe and method employ it is above-mentioned Technical scheme, i.e., using squeezing needle and extrusion die as extrusion die, extrusion die is the monolithic extruded mould of a nib, its nib It is axially spaced to be provided with two reducing calibrating straps, inclined-plane connection between two calibrating straps;Squeezing needle pin front end backward vertically between Every the second work band, footpath contracting band and the first work band is provided with, the first work band external diameter is more than the second work band external diameter, the second work Band external diameter contracts with external diameter more than footpath, is connected by inclined-plane between two work bands and footpath contracting band;When aluminium-alloy pipe makes, by control System processed controls respectively the position of the amount of compression and squeezing needle of aluminium alloy cast ingot in extrusion die, obtains band internal-external thickening form and becomes Cross-sectional aluminum alloy pipe.The variable cross-section aluminium alloy pipe with internal-external thickening form, its gram can be made using this preparation facilities and method The defect of conventional fabrication method has been taken, the fabricating quality and efficiency of variable cross-section aluminium alloy pipe has been improve.
Description of the drawings
Below in conjunction with the accompanying drawings the present invention is described in further detail with embodiment:
Fig. 1 is the structural representation that the present invention makes the variable cross-section aluminium-alloy pipe preparation facilitiess with internal-external thickening form;
Fig. 2 extrudes schematic diagram when being compressive zone internal-external thickening form variable cross-section aluminium-alloy pipe upset end;
Fig. 3 is to extrude schematic diagram when compressive zone internal-external thickening form variable cross-section aluminium-alloy pipe thickeies changeover portion;
Fig. 4 extrudes schematic diagram when being the nominal section of compressive zone internal-external thickening form variable cross-section aluminium-alloy pipe;
Fig. 5 is for compressive zone internal-external thickening form variable cross-section aluminium-alloy pipe from nominal body gradually to the thickening of upset end transition Changeover portion extrudes schematic diagram;
Schematic diagram is extruded during another for compressive zone internal-external thickening form variable cross-section aluminium-alloy pipe again upset ends of Fig. 6.
Specific embodiment
As shown in figure 1, the present invention makes the preparation facilitiess of the variable cross-section aluminium-alloy pipe with internal-external thickening form, including extruding Machine and extruding tool and mould, the extruder is double-acting extruding machine, and the extruding tool and mould includes recipient 4, extrusion axis 3, extruding Pin 1 and extrusion die 2, the extrusion axis 3 is located in the recipient 4, and the squeezing needle 1 is located at the center of the extrusion axis 3 and leads to In hole, the extrusion die 2 is located at the head end of the recipient 4, and the extruder exists to the independent control of the squeezing needle 1, its feature In:The extrusion die 2 is the monolithic extruded mould of a nib 23, and the nib 23 of the extrusion die 2 is respectively separated is provided with vertically Reducing the first calibrating strap 21 and the second calibrating strap 22, the internal diameter of the second calibrating strap 22 is more than the internal diameter of the first calibrating strap 21, The internal diameter of first calibrating strap 21 is determined that the internal diameter of the second calibrating strap 22 is by variable cross-section by variable cross-section aluminium-alloy pipe nominal outside diameter The external diameter at aluminium-alloy pipe internal-external thickening end determines that inclined-plane connection, described between the calibrating strap 22 of first calibrating strap 21 and second The front end of squeezing needle 1 is interval with successively vertically backward work band 13, the footpath contracting band 12 of reducing second and the first work band 11, described First work band 11 controls variable cross-section aluminium-alloy pipe nominal inside diameter, and the first work 11 external diameters of band are nominally interior by variable cross-section aluminium-alloy pipe Footpath determines that second work is with 13 internal diameters for controlling variable cross-section aluminium-alloy pipe internal-external thickening positions, the second work band 13 External diameter is determined that the first work 11 external diameters of band work outside band 13 more than second by the internal diameter at variable cross-section aluminium-alloy pipe internal-external thickening position Footpath, second work band 13 external diameters more than footpath contract band 12 external diameters, it is described first work band 11, second work band 13 and footpath contracting band 12 it Between inclined-plane connection.
To ensure that pressing material circulation has sufficient free air space, institute during extruding variable cross-section aluminium-alloy pipe thicken position The difference for stating the transverse section of 2 first calibrating strap of extrusion die 21 and the footpath of squeezing needle 1 contracting 12 cross sectional areas of band is fixed not less than extrusion die 2 second Footpath 22 transverse section of band and the difference of work 13 cross sectional areas of band of squeezing needle 1 second.
The method with internal-external thickening form variable cross-section aluminium-alloy pipe is made using above-mentioned preparation facilitiess to comprise the steps:
Step one:As shown in Fig. 2 first loading preheated aluminium alloy cast ingot 5 in recipient 4, mobile extrusion axis 3 enters Recipient 4, squeezing needle 1 is squeezed in aluminium alloy cast ingot 5 through the central through hole of extrusion axis 3, and by the control system control of squeezing needle 1 The reach of squeezing needle processed 1 makes the second of squeezing needle 1 work the immigration extrusion die of band 13 nib 23 positioned at the calibrating strap 22 of extrusion die 2 second, Start extruding using the control system of extrusion axis 3, squeezing needle 1 second is passed through under extruding force effect in this position aluminium alloy cast ingot 5 Work is controlled with 13 internal diameters of upset end 61 of the control with internal-external thickening form variable cross-section aluminium-alloy pipe, the calibrating strap 22 of extrusion die 2 second Upset end 61 external diameter of the system with internal-external thickening form variable cross-section aluminium-alloy pipe, is finally squeezed into band internal-external thickening form variable cross-section aluminum Compo pipe upset end 61;The annular space that footpath first calibrating strap 21 of the contracting with 12 and extrusion die 2 of squeezing needle 1 is constituted is in extruding The aluminium alloy extruded material of abundance is provided in step for extruding aluminium alloy upset end;
Step 2:As shown in figure 3, when the length with internal-external thickening form variable cross-section aluminium-alloy pipe upset end 61 reaches design After requiring length, the control system of extrusion axis 3 control extruding aluminium alloy ingot casting 5, the control system of squeezing needle 1 moves forward squeezing needle 1, this When, the calibrating strap 21 of extrusion die 2 first and squeezing needle 1 first work band 11 and footpath contracting with 12 between the two intermediate incline gap by Displacement that is decrescence little and accurately controlling extrusion axis 3 and the amount of compression of control aluminium alloy cast ingot 5, final extruding forms band internal-external thickening Form variable cross-section aluminium-alloy pipe thickeies changeover portion 62;
Step 3:As shown in figure 4, the control system of extrusion axis 3 continues extruding aluminium alloy ingot casting 5, the control system of squeezing needle 1 will The reach of squeezing needle 1 makes the work of squeezing needle 1 first band 11 be located at the position of 2 first calibrating strap of extrusion die 21, by the work of squeezing needle 1 first Make with 11 internal diameters of the control with the nominal body 63 of internal-external thickening form variable cross-section aluminium-alloy pipe, with the calibrating strap 21 of extrusion die 2 first External diameter of the control with the nominal body 63 of internal-external thickening form variable cross-section aluminium-alloy pipe;At this moment squeezing needle 1 first work band 11 with squeeze The minimum space that annular space between the calibrating strap 21 of pressing mold 2 first passes through when being aluminium alloy extruded, so extruding control shaping It is the nominal part of body 63 of band internal-external thickening form variable cross-section aluminium-alloy pipe;
Step 4:As shown in figure 5, the control system of extrusion axis 3 control extruding aluminium alloy ingot casting 5, when band internal-external thickening form The length of the nominal body 63 of variable cross-section aluminium-alloy pipe is reached after design requirement, and the control system of squeezing needle 1 is moved back by squeezing needle 1 It is dynamic, the calibrating strap 21 of extrusion die 2 first and squeezing needle 1 first work band 11 and footpath contracting with 12 between the two intermediate incline gap by Displacement that is cumulative big and accurately controlling extrusion axis 3 and the amount of compression of control aluminium alloy cast ingot 5, so extrude control and are configured to interior External upset (EU) form variable cross-section aluminium-alloy pipe is from nominal body 63 gradually to the thickening changeover portion 64 of upset end transition;
Step 5:As shown in fig. 6, the control system of extrusion axis 3 continues extruding aluminium alloy ingot casting 5, the control system of squeezing needle 1 will Squeezing needle 1 is moved rearwards by making the second of squeezing needle 1 to work band 13 positioned at the calibrating strap 22 of extrusion die 2 second, by squeezing needle 1 second Another internal diameter of upset end 65 of the control band internal-external thickening form variable cross-section aluminium-alloy pipe of work band 13, the calibrating strap 22 of extrusion die 2 second Another external diameter of upset end 65 of control band internal-external thickening form variable cross-section aluminium-alloy pipe, is so squeezed into again band internal-external thickening form Another upset end 65 of variable cross-section aluminium-alloy pipe.

Claims (3)

  1. It is 1. a kind of to make the preparation facilitiess with internal-external thickening form variable cross-section aluminium-alloy pipe, including extruder and extruding tool and mould, The extruder is double-acting extruding machine, and the extruding tool and mould includes recipient, extrusion axis, squeezing needle and extrusion die, described to squeeze Last item is located in the recipient, and the squeezing needle is located in the central through hole of the extrusion axis, and the extrusion die is located at described Recipient head end, the extruder is to the squeezing needle independent control, it is characterised in that:The extrusion die is the whole of nib Body extrusion die, the extrusion die nib is respectively separated is provided with the calibrating strap of reducing first and the second calibrating strap vertically, and described second Calibrating strap internal diameter is more than the first calibrating strap internal diameter, and the first calibrating strap internal diameter is determined by aluminium-alloy pipe nominal outside diameter, institute State the second calibrating strap internal diameter to be determined by the external diameter at variable cross-section aluminium-alloy pipe internal-external thickening end, first calibrating strap and the second sizing Inclined-plane connection between band, the squeezing needle is moved under the control of the extruder in the extrusion die, before the squeezing needle End is interval with successively vertically backward the work band of reducing second, footpath contracting band and the first work band, the first work band control Variable cross-section aluminium-alloy pipe nominal inside diameter, first works is determined with external diameter by variable cross-section aluminium-alloy pipe nominal inside diameter, second work Make the internal diameter with control variable cross-section aluminium-alloy pipe internal-external thickening position, the second work band external diameter is by variable cross-section aluminium-alloy pipe External upset (EU) position internal diameter determines that the first work band external diameter is more than footpath contracting band more than the second work band external diameter, the second work band external diameter External diameter, inclined-plane rounding off connection between the first work band, footpath contracting band and the second work band.
  2. 2. according to claim 1 to make the preparation facilitiess with internal-external thickening form variable cross-section aluminium-alloy pipe, its feature exists In:The difference of the extrusion die the first calibrating strap transverse section and squeezing needle footpath contracting band cross sectional area is not less than the sizing of extrusion die second Band transverse section and the difference of the work band cross sectional area of squeezing needle second.
  3. 3. the method with internal-external thickening form variable cross-section aluminium-alloy pipe is made according to claim 1 preparation facilitiess, it is characterised in that: This method comprises the steps:
    Step one:Preheated aluminium alloy cast ingot is loaded in recipient first, mobile extrusion axis enters recipient, and squeezing needle is worn Cross extrusion axis central through hole to be squeezed in aluminium alloy cast ingot, and squeezing needle is made by the control squeezing needle reach of squeezing needle control system Second work band moves into extrusion die nib and is located at the calibrating strap of extrusion die second, and using extrusion axis control system extruding, here are started Position aluminium alloy cast ingot is closed under extruding force effect by the work band control band internal-external thickening form variable cross-section aluminum of squeezing needle second The upset end internal diameter of golden pipe, outside the calibrating strap of extrusion die second upset end of the control with internal-external thickening form variable cross-section aluminium-alloy pipe Footpath, is finally squeezed into band internal-external thickening form variable cross-section aluminium-alloy pipe upset end;The footpath contracting band of squeezing needle and the first of extrusion die The annular space that calibrating strap is constituted provides the aluminium alloy extruded material of abundance in pressing steps for extruding aluminium alloy upset end;
    Step 2:After the length with internal-external thickening form variable cross-section aluminium-alloy pipe upset end reaches design requirement length, extruding Axle control system controls extruding aluminium alloy ingot casting, and squeezing needle control system moves forward squeezing needle, at this moment, the calibrating strap of extrusion die first It is gradually reduced and the accurate position of control extrusion axis with the work gap of band and footpath contracting band intermediate incline between the two of squeezing needle first The amount of compression of aluminium alloy cast ingot is moved and controls, final extruding forms band internal-external thickening form variable cross-section aluminium-alloy pipe and thickeies transition Section;
    Step 3:Extrusion axis control system continues extruding aluminium alloy ingot casting, and squeezing needle reach is made extruding by squeezing needle control system The work band of pin first is located at the first calibrating strap of extrusion die position, is become by the work band control band internal-external thickening form of squeezing needle first The internal diameter of the nominal body of cross-sectional aluminum alloy pipe, with the calibrating strap of extrusion die first band internal-external thickening form variable cross-section aluminium-alloy pipe is controlled The external diameter of nominal body;At this moment the annular space between the work of squeezing needle first band and the calibrating strap of extrusion die first is that aluminium alloy is squeezed The minimum space passed through during pressure, so extrudes control and is configured to the nominal tube body of band internal-external thickening form variable cross-section aluminium-alloy pipe Point;
    Step 4:Extrusion axis control system controls extruding aluminium alloy ingot casting, when band internal-external thickening form variable cross-section aluminium-alloy pipe mark Claim body length reach after design requirement, squeezing needle control system is moved rearwards by squeezing needle, the calibrating strap of extrusion die first with The work gap of band and footpath contracting band intermediate incline between the two of squeezing needle first gradually increases and the accurately displacement of control extrusion axis And the amount of compression of control aluminium alloy cast ingot, so extrude control and be configured to band internal-external thickening form variable cross-section aluminium-alloy pipe by nominal Body is gradually to the thickening changeover portion of upset end transition;
    Step 5:Extrusion axis control system continues extruding aluminium alloy ingot casting, and squeezing needle control system is moved rearwards by squeezing needle to make Second work band of squeezing needle is located at the calibrating strap of extrusion die second, by the work band control band internal-external thickening form of squeezing needle second Another upset end internal diameter of variable cross-section aluminium-alloy pipe, the calibrating strap of extrusion die second control band internal-external thickening form variable cross-section aluminium-alloy pipe Another upset end external diameter, is so squeezed into again another upset end of band internal-external thickening form variable cross-section aluminium-alloy pipe.
CN201210046798.4A 2012-02-28 2012-02-28 Preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections Active CN103286151B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210046798.4A CN103286151B (en) 2012-02-28 2012-02-28 Preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210046798.4A CN103286151B (en) 2012-02-28 2012-02-28 Preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections

Publications (2)

Publication Number Publication Date
CN103286151A CN103286151A (en) 2013-09-11
CN103286151B true CN103286151B (en) 2017-04-19

Family

ID=49087976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210046798.4A Active CN103286151B (en) 2012-02-28 2012-02-28 Preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections

Country Status (1)

Country Link
CN (1) CN103286151B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103736768B (en) * 2013-12-31 2015-09-23 西南石油大学 Internal diameter constant two ends wall thickness increases pressurizing unit and the pressing method of tubing
CN104275358A (en) * 2014-09-22 2015-01-14 吉林利源精制股份有限公司 Extrusion molding method for aluminum alloy inner diameter-changeable seamless tube
CN104624686A (en) * 2015-03-03 2015-05-20 太原重工股份有限公司 Method and device for extruding aluminium alloy pipe with variable cross section
CN113083927A (en) * 2021-03-29 2021-07-09 西南铝业(集团)有限责任公司 Variable-section pipe extrusion forming device and extruder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000102816A (en) * 1998-09-30 2000-04-11 Furukawa Electric Co Ltd:The Die for hot extrusion of aluminum alloy
CN102019303A (en) * 2009-09-14 2011-04-20 上海海隆石油管材研究所 Device and method for preparing aluminum alloy drill rod tube body
CN202239003U (en) * 2011-08-24 2012-05-30 广东银一百创新铝业有限公司 Extrusion die for greatly enhancing surface finish of aluminum-alloy square tube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0000526L (en) * 2000-02-18 2001-04-30 Markram Dev Ab Apparatus and method for pressing a plastic deformable blank

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000102816A (en) * 1998-09-30 2000-04-11 Furukawa Electric Co Ltd:The Die for hot extrusion of aluminum alloy
CN102019303A (en) * 2009-09-14 2011-04-20 上海海隆石油管材研究所 Device and method for preparing aluminum alloy drill rod tube body
CN202239003U (en) * 2011-08-24 2012-05-30 广东银一百创新铝业有限公司 Extrusion die for greatly enhancing surface finish of aluminum-alloy square tube

Also Published As

Publication number Publication date
CN103286151A (en) 2013-09-11

Similar Documents

Publication Publication Date Title
CN103286151B (en) Preparation device and method for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections
CN102019303B (en) Device and method for preparing aluminum alloy drill rod tube body
CN103707017B (en) CVT automatic gear-box V-type belt wheel axle finish forge plastic forming technique
CN104307908B (en) A kind of method waiting channel formation mould and shaping pipe thereof of thick-wall tube
CN101391368A (en) Processing method of deep-hole pin bush parts
CN202555617U (en) Extrusion die for manufacturing inside and/or outside thickened aluminum alloy pipes with variable cross sections
CN108637031A (en) A kind of mold preparing high-performance magnesium-alloy tubing
CN106140852B (en) A kind of high-strength tenacity fine grain light-alloy tubing prepares mould and preparation method thereof
CN104226868B (en) Valve body composite rolling ring forming method for ball valve
CN107443019A (en) The warm cold duplex forging manufacturing process of deep hole input shaft
CN106216472A (en) A kind of umbellate form housing member warm-extrusion forming method
CN202555618U (en) Extrusion die for making variable cross-section aluminium alloy pipe in internal upset form
CN103111482A (en) Preparation method of magnesium alloy seamless pipe and extrusion die thereof
CN102151709A (en) Method for differentially extruding and forming pipe fittings arbitrarily bent on plane by adopting double convex dies
CN101172325A (en) Method for producing angle pin casing tube
CN104625594B (en) The method of manufacturing technology of rotor of large turbo-type generator profiled-cross-section connector copper pipe
CN108161347A (en) The inside reinforcing rib coupling barrel manufacturing process of band
CN106862449B (en) The closed die forging forging method of complete-section tunnel boring machine hobboing cutter cutter ring
CN103599955B (en) It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure
CN103752630A (en) Preparation method of variable cross-section aluminum alloy drill rod pipe body
CN109332410A (en) A kind of big L/D ratio hollow thin-wall axis squeezes preparation facilities and method
CN100579710C (en) Method for producing angle pin casing tube
CN106984664A (en) Aluminum alloy heat extrudes replaceable mold cores
CN103658213A (en) Novel extrusion method for efficiently machining straight spur gear
CN204412784U (en) For making the pressurizing unit of variable cross-section aluminum alloy drill rod pipe body

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant