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WO2015186695A1 - Appareil de fabrication de tuyau, procédé de fabrication de tuyau et tuyau - Google Patents

Appareil de fabrication de tuyau, procédé de fabrication de tuyau et tuyau Download PDF

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Publication number
WO2015186695A1
WO2015186695A1 PCT/JP2015/065872 JP2015065872W WO2015186695A1 WO 2015186695 A1 WO2015186695 A1 WO 2015186695A1 JP 2015065872 W JP2015065872 W JP 2015065872W WO 2015186695 A1 WO2015186695 A1 WO 2015186695A1
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WIPO (PCT)
Prior art keywords
convex portion
pipe
spiral
pipe material
surface side
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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.)
Ceased
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PCT/JP2015/065872
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English (en)
Japanese (ja)
Inventor
眞 村田
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Individual
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Individual
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Publication of WO2015186695A1 publication Critical patent/WO2015186695A1/fr
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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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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, rods or tubes
    • B21C23/10—Making finned tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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

Definitions

  • the present invention relates to a pipe material manufacturing apparatus, a pipe material manufacturing method, and a pipe material that are most suitable for manufacturing a pipe material for flowing a heat medium.
  • a spiral groove is provided on the inner wall of the tube in order to improve the heat exchange performance between the heat medium and the pipe material through which the heat medium flows.
  • a tube with an inner spiral groove has better heat exchange performance than a tube without a groove or a tube with a straight groove.
  • copper is used as the material for the tube, and the tube material is manufactured by swaging or electro-sewing molding of a flat plate with grooves (see Patent Documents 1 to 4 and Non-Patent Document 1).
  • Non-Patent Document 2 and Patent Document 5 disclose the use of a rotating plug in order to form a spiral groove on the inner surface of a tube.
  • Non-Patent Document 3 disclose using a non-rotating plug in order to form a spiral groove on the inner surface of a pipe.
  • Non-Patent Document 2 or Patent Document 5 it is necessary to fix the plug in the axial direction so as to be capable of self-rotating during extrusion. Therefore, when a large force is applied to the plug in the pushing direction, there is a concern that the mechanism that holds the plug so as to be able to rotate by self-help may be damaged, and the maximum twist angle of the spiral groove formed on the inner surface of the pipe remains at about 8 degrees. .
  • Non-Patent Document 3 Non-Patent Document 4 and Patent Document 6, in order to take out the tip of the mandrel from the die bearing part, the tube with the inner spiral groove is further twisted by the spiral protrusion of the mandrel after exiting the die.
  • the angle of the inner spiral groove of the tube can be a predetermined angle.
  • the portion of the tube that has exited the die is not constrained by the die, it is difficult to process the tube into a predetermined shape or high-precision dimensions.
  • Non-Patent Document 4 it is difficult to process the shape of the inner spiral protrusion of the tube into a predetermined size and shape. This is because the rotation of the extruded tube is restricted by the friction of the die surface.
  • the present invention has been made in view of the above problems, and can be extruded by a simple mechanism, and can increase the helix angle of the spiral convex portion formed on the inner and outer surfaces of the tube. It is an object of the present invention to provide a pipe manufacturing apparatus, a pipe manufacturing method, and a pipe that can be made into predetermined dimensions and shapes.
  • the pipe material manufacturing apparatus is provided in the billet extrusion direction and has a die in which a through hole is formed, and the tip is substantially at the same position as the through hole. And an insertion member that forms a gap between the through hole and the die.
  • a first groove is formed on the side surface side of the insertion member to form a spiral first convex portion on the inner surface side of the tube material when the tube material is extruded from the gap.
  • the second groove is formed on the outer surface side of the pipe material to form the second spiral convex portion when the material is extruded.
  • the first groove and the second groove of the pipe material manufacturing apparatus according to the first aspect of the present invention may each be formed with a plurality of spiral grooves.
  • the insertion member of the pipe material manufacturing apparatus may include a floating die that integrally has an insertion portion for inserting the through hole.
  • the pipe material manufacturing method according to the second aspect of the present invention uses the pipe material manufacturing apparatus according to the first aspect, and heats the billet and extrudes it from the gap to form a pipe material having the first convex part and the second convex part. It is characterized by doing.
  • the first convex portion is removed by performing a drawing process with a drawing die in which the wall surface of the through hole abuts on the pipe material outer surface side, or the pipe material inner surface of the pipe material Even if the tubular material having a spiral convex portion is formed only on one of the tube inner surface side and the tube material outer surface side by removing the second convex portion by performing a drawing process with a drawing mandrel whose outer surface abuts on the side. Good.
  • the tubular material according to the third aspect of the present invention is formed by extrusion molding with the tubular material manufacturing apparatus according to the first aspect, so that the spiral first convex portion is formed on the tubular material inner surface side and spiraled on the tubular material outer surface side.
  • the second convex part is shaped.
  • the twist angles of the first groove and the second groove of the insertion member can be increased so that the twist angles of the spiral first convex portion and the second convex portion are increased, and the heat transfer coefficient is increased. It is possible to manufacture the pipe material by extrusion molding.
  • a tube material in which a plurality of convex portions are formed on any of the inner and outer surfaces is manufactured. be able to.
  • a convex portion having a set twist angle is formed on the inner and outer surfaces using a floating die with a simple structure.
  • the manufactured pipe material can be easily manufactured.
  • heat transfer is performed by increasing the helix angle of the spiral convex portion formed on any of the inner and outer surfaces.
  • a tube material with an increased rate can be easily manufactured in a short time by extrusion.
  • the first convex portion is removed by performing a drawing process with a drawing die in which the wall surface of the through hole abuts on the tube material outer surface side of the tube material, or a drawing mandrel with which the outer surface abuts on the tube material inner surface side of the tube material.
  • the tubular material manufactured by extrusion molding, and the heat transfer coefficient is increased by increasing the twist angle of the spiral convex portion formed on any of the inner and outer surfaces. It can be.
  • FIG. 1 is a front sectional view showing the configuration of the pipe material manufacturing apparatus according to the first embodiment.
  • 2 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 3 is a perspective view of a floating die constituting the pipe material manufacturing apparatus according to the first embodiment.
  • FIG. 4 is a partially enlarged view of FIG. 1 (illustration of the pipe material is omitted).
  • FIG. 5 is a perspective sectional view of the pipe material of the first embodiment.
  • FIGS. 6A and 6B are pipe materials according to the first embodiment, in which FIG. 6A is a side sectional view and FIG. 6B is a perspective view.
  • FIG. 6A is a side sectional view
  • FIG. 6B is a perspective view.
  • FIG. 7 is a side cross-sectional view for explaining forming of a pipe member having a spiral convex portion only on the outer surface side in the second embodiment.
  • FIG. 8 is a side cross-sectional view showing a tubular material having a spiral convex portion only on the inner surface side, manufactured according to the second embodiment.
  • FIG. 9 is a side cross-sectional view for explaining forming of a tubular material having a spiral convex portion only on the outer surface side in the second embodiment.
  • FIG. 10 is a side cross-sectional view showing a pipe member having a spiral convex portion only on the outer surface side, manufactured in the second embodiment.
  • FIG. 11 is a front developed cross-sectional view for explaining crushing of the second convex portion formed on the outer peripheral side of the pipe material in the third embodiment.
  • FIG. 12 is a partial enlarged cross-sectional view of the pipe manufactured in the fourth embodiment.
  • the embodiment described below exemplifies measures and methods for embodying the technical idea of the present invention, and the embodiment of the present invention includes the material, shape, structure, arrangement, etc. of the component parts. Is not specified as follows.
  • the embodiment of the present invention can be implemented with various modifications without departing from the scope of the invention.
  • a pipe material manufacturing apparatus (extrusion molding apparatus) 10 described in this embodiment includes a container 14 capable of heating a billet 12 for extrusion molding accommodated therein, and an extrusion direction of the container 14.
  • a die 16 provided, a dummy block 18 that comes into contact with the billet 12 accommodated in the billet accommodation space S of the container 14 from above, and a ram 20 that presses the dummy block 18 toward the die.
  • the billet accommodation space S has a cylindrical inner space shape.
  • a recess 21 that forms a cylindrical inner space from the end of the die 16 in the extrusion direction along the die center axis C in a direction opposite to the extrusion direction F (upward in the drawing in FIG. 1).
  • a circular through hole 22 is formed to allow the billet housing space S to communicate with the wall 21.
  • the central axis of the through hole 22 and the central axis of the billet accommodating space S are the same as the die central axis C.
  • the inner diameter of the recess 21 is set to be larger than the outer diameter of the through hole 22 so as not to prevent the tube material P extruded from the gap 24 described later from being smoothly extruded.
  • the pipe material manufacturing apparatus 10 includes a floating die 30 (also called an active mandrel or a porthole die) placed in a container 14.
  • the floating die 30 includes a main body portion 32 and an insertion portion 34 that extends from the center of the main body portion 32 in the pushing direction F.
  • the main body 32 has a disk shape, and a plurality of billet flow holes 36 are formed in the main body 32 so as to be evenly arranged around the central axis.
  • the position of the floating die 30 is a preset position.
  • the insertion portion 34 has a cylindrical shape, and the tip 34T is installed at substantially the same position as the lower end of the through hole 22. And the insertion part 34 has the 1st groove part 38 in the side surface side (outer peripheral side) while forming the clearance gap 24 between the dice
  • FIG. 5 When the pipe material P (see FIGS. 1 and 5) in which the billet 12 in the container 14 is extruded from the gap 24 is formed, the spiral first convex portion 42 (see FIG. 5) is formed on the inner surface side of the pipe material. As shown, a plurality of spiral grooves 40 (spiral grooves) are formed in the first groove portion 38.
  • the second groove portion 39 is attached to the side surface side (inner peripheral side) of the die 16 so that the spiral second convex portion 43 (see FIGS. 5 and 7) is formed on the outer peripheral side of the pipe material.
  • a plurality of spiral grooves 41 are formed in the two groove portions 39.
  • the twist angle ⁇ 1 (see FIG. 3) of the spiral groove 40 is preferably in the range of 10 to 40 °. If it is less than 10 °, the heat transfer coefficient between the pipe P and the heat medium flowing in the pipe P is not so high.
  • the twist angle ⁇ 2 (not shown) of the spiral groove 41 is also preferably in the range of 10 to 40 ° for the same reason, and is preferably the same angle as the twist angle ⁇ 1 of the spiral groove 40.
  • the twist angle ⁇ 1 of the first convex portion 42 and the twist angle ⁇ 2 of the second convex portion 43 do not reach a predetermined twist angle
  • the twist angle ⁇ 1 of the spiral groove 40 or the twist angle ⁇ 2 of the spiral groove 41 is set. Sometimes it gets bigger.
  • the gap G of the gap 24, that is, the gap G between the insertion portion 34 and the inner circumference of the outer through hole 22 is set according to the thickness of the tube material P manufactured by extrusion molding. Further, the position of the insertion portion 34 from the F-side edge 22E (see FIGS. 1 and 4) of the through hole 22 and the axial length (F direction length) M of the through hole 22 are determined by the billet 12. Depending on the material, temperature, gap G, ram pressing force, twist angle ⁇ 1 of the spiral groove 40 of the insertion portion 34 (see FIG. 3), twist angle of the spiral groove 41 of the die 16, twist angle of the first convex portion 42, etc. Is set.
  • the floating die 30 is placed at the installation position in the container 14, and the billet 12 is placed in the container 14 and heated to a predetermined temperature.
  • the billet 12 heated to a predetermined temperature is placed in the container 14.
  • heating to about 350 to 600 ° C., preferably about 450 to 600 ° C., preferably about 450 to 550 ° C. is preferable from the viewpoint of extrusion molding.
  • the billet 12 is plastically deformed, passes through the billet flow hole 36, flows toward the main body 32, and reaches the gap 24. Then, it is plastically deformed and extruded from the gap 24 as a tube material P as shown in FIG.
  • the spiral first groove 42 and the second groove 43 are formed on the inner and outer surfaces of the pipe P by the spiral groove 40 and the spiral groove 41.
  • the twist angle of the first convex portion 42 is mainly determined by the twist angle of the spiral groove 40
  • the twist angle of the second convex portion 43 is mainly determined by the twist angle of the spiral groove 41.
  • the floating die 30 is an integral part, and the floating die portion that moves relative to the main body portion 32 is not formed. Therefore, even if a high pressing force is applied to the insertion portion 34, the possibility that the insertion portion 34 is damaged is greatly reduced compared to the conventional case. Therefore, the twist angle of the spiral groove 40 and the spiral groove 41 can be increased so that the twist angle of the first convex portion 42 and the second convex portion 43 is significantly increased. Therefore, it is possible to manufacture the tube material P having a significantly increased heat transfer coefficient by a heat exchanger or the like by extrusion molding. Further, by changing the diameters of the insertion portion 34 and the through hole 22, the inner diameter and the outer dimension of the pipe material P can be changed, and the pipe material P can be easily extruded.
  • a plurality of spiral first convex portions 42 can be formed on the inner surface of the tube material P.
  • a plurality of spiral second convex portions 43 can be formed on the outer surface of the tube material P.
  • the number of spiral grooves 40 on the side surface of the insertion portion 34 and the spiral groove 41 on the side surface of the die may be the same or different.
  • the tube P having the first convex portion 42 having the set twist angle ⁇ 1 on the inner surface side and the second convex portion 43 having the set twist angle ⁇ 2 on the outer surface side can be easily obtained. Can be manufactured.
  • the drawing direction F of the billet 12 from the inside of the container 14 is illustrated below.
  • the extrusion direction is not limited to the downward direction. It is possible to extrude in the horizontal direction or obliquely downward, and further to extrude upward to form a tube material. As an extrusion method, direct extrusion or indirect extrusion may be used.
  • the outer diameter of the pipe material is set to a predetermined dimension, but when the pipe material P is pulled out with a drawing die 51 (see FIG. 7) described later to remove the second convex portion 43 on the outer side of the pipe material, the outer diameter of the pipe material is set to the predetermined dimension. It may be made slightly larger, and the pipe outer diameter may be set to an accurate dimension set by this drawing.
  • the inner diameter of the tube material is set to a predetermined size. However, when the tube material P is pulled out by a drawing die 52 (see FIG. 9) described later to remove the second convex portion 43 on the outer surface side of the tube material, the inner diameter of the tube material is slightly smaller than the predetermined size. In some cases, the inner diameter of the pipe material is set to an accurate dimension that is set by pulling out.
  • the recessed part 21 was formed in the center of the die
  • the dimension of the recess 21 is not particularly limited as long as it can come out of the recess 21.
  • FIG. 5 shows an example in which eight spiral first convex portions 42 are formed.
  • eight spiral grooves 40 are formed in the insertion portion 34 so that the first convex portions 42 can be formed.
  • the number of the first protrusions 42 and the spiral grooves 40 is not particularly limited, and more spiral grooves 40 (for example, 30 and 50) are formed as shown in FIGS. More first convex portions 42 may be formed.
  • the number of the first convex portions 42 is further reduced (for example, two), these effects due to the molding of the first convex portions 42 are exhibited.
  • the second convex portion 43 whose number of formation is changed when the number of the spiral grooves 41 of the die 16 is changed is the same as the above description regarding the first convex portion 42.
  • the twist angle (theta) 1 is made into a preferable angle, and the shape of the 1st convex part 42 and the 2nd convex part 43 is used.
  • the billet may be shaped so that the billet easily flows during extrusion molding.
  • FIG. 7 is a side cross-sectional view for explaining forming of a pipe member having a spiral convex portion only on the inner surface side in the present embodiment.
  • FIG. 8 is a side cross-sectional view showing a pipe member having a spiral convex portion only on the inner surface side, manufactured in the present embodiment.
  • FIG. 9 is a side cross-sectional view for explaining forming of a pipe member having a spiral convex portion only on the outer surface side in the present embodiment.
  • FIG. 10 is a side cross-sectional view showing a tube material having a spiral convex portion only on the outer surface side, manufactured in the present embodiment.
  • the twist angle of the first convex portion 42 and the shape and dimensions of the tubular material can be accurately and simultaneously manufactured. It is necessary to do. However, some of the first convex portion 42 and the second convex portion 43 require only one of the inner surface side or the outer surface side of the tube material, that is, only the first convex portion 42 or only the second convex portion 43. obtain.
  • the convex part (second convex part 43) on the outer surface side of the pipe material P is removed.
  • the first protrusion 42 on the outer surface side of the pipe material is obtained by placing the drawing die 51 on the outer surface side of the pipe material P and pulling the drawing die 51 on the left side of the paper surface or on the right side of the paper surface. Is removed, the convex portion (first convex portion 42) on the inner surface side of the pipe material remains.
  • the tube material Q having a spiral convex portion only on the inner peripheral surface side is formed.
  • a tubular material Q in which the spiral first convex portion 42 was formed only on the inner peripheral side of the tubular material P was obtained.
  • the inner diameter of the drawing die 51 used here is approximately the same as the outer diameter of the pipe material P or a predetermined dimension slightly smaller than the outer diameter of the pipe material P.
  • the convex portion (first convex portion 42) on the inner surface side of the pipe material P is removed.
  • the second mandrel 52 is placed on the inner surface side of the pipe material P, and the second mandrel 52 is pulled to the right side of the drawing sheet or the pipe material P is drawn to the left side of the drawing sheet. 43 remains.
  • the pipe material Q having a spiral convex portion only on the outer surface side can be formed.
  • a tubular material R in which a spiral convex portion (second convex portion 43) is formed only on the outer peripheral side of the tubular material P is obtained.
  • the outer diameter of the drawing mandrel 52 used here is approximately the same as the inner diameter of the pipe material P or a predetermined dimension slightly larger than the inner diameter of the pipe material P.
  • FIG. 11 is a front developed cross-sectional view illustrating that the second convex portion formed on the outer peripheral side of the tubular material is crushed by pressing the tubular material manufactured in the first embodiment with a concave pressing roll in the present embodiment.
  • FIG. 11 is a front developed cross-sectional view illustrating that the second convex portion formed on the outer peripheral side of the tubular material is crushed by pressing the tubular material manufactured in the first embodiment with a concave pressing roll in the present embodiment.
  • the pressing roll 60 used in the present embodiment includes an upper pressing member 62 that presses the tube material P from above, and a lower pressing member 64 that presses the tube material P from below (including the case where the tube material P is supported from the lower side). Yes.
  • the upper pressing member 62 is formed with an upper concave portion 63 having a cylindrical inner peripheral surface in cross section, and the lower pressing member 64 is also formed with a lower concave portion 65 having a cylindrical inner peripheral surface in cross section.
  • a cutting blade (not shown) is attached to the bottom of the roll to cut the second convex portion 43 on the outer peripheral side of the circular tube.
  • the upper concave portion 63 and the lower concave portion 65 are brought into contact with the outer peripheral side of the pipe material P, and are pressed and rotated so as to sandwich the pipe material P, whereby the second convex portion 43 is formed. Crush.
  • the protrusion height of the 2nd convex part 43 of the pipe material P can be suppressed.
  • FIG. 12 is a partially enlarged cross-sectional view of the pipe material P manufactured in the present embodiment.
  • the pipe P of the present embodiment has a shape in which the second convex portion 43 is formed with an inclined surface K that is gentler than the first convex portion 42 as compared to the first embodiment.
  • the height of the convex portion is, for example, in the range where the height of the first convex portion 42 is 0.2 mm and the height of the second convex portion 43 is 0.05 to 0.2 mm.
  • the inner diameter at the portion where the first convex portion 42 is not formed is 6 mm
  • the outer diameter at the portion where the second convex portion 43 is not formed Is 7 mm.
  • the number of the first protrusions 42 formed on the tube material P is considerably smaller than that of the second protrusions 43 because the first protrusions 42 are formed with the gentle inclined surface K.
  • the number of the second convex portions 43 is eight and the number of the first convex portions 42 is 50, but this number is an example, and the number is not particularly limited in the present embodiment.
  • the second convex portion 43 is a convex portion having a gentle inclined surface, the tube material P is easily rotated out during the extrusion molding, so that the tube material P can be easily extruded.
  • the pipe material manufacturing apparatus, the pipe material manufacturing method, and the pipe material according to the present invention are much less likely to damage the insertion member even when a high pressing force is applied to the insertion member. Since the twist angle of the first groove and the second groove of the insertion member can be increased so that the twist angle of the first and second convex portions is increased, the tube material with an increased heat transfer coefficient is extruded. It is suitable for use as a pipe material manufacturing apparatus, a pipe material manufacturing method, and a pipe material that can be manufactured by molding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Metal Extraction Processes (AREA)

Abstract

L'invention concerne un appareil (10) pour la fabrication d'un tuyau, pourvu de : une filière (16) positionnée dans la direction d'extrusion d'une billette (12), un trou traversant étant formé à l'intérieur de la filière (16) ; et une partie d'insertion (34) dont l'extrémité distale est insérée dans le trou traversant de manière à avoir pratiquement la même position que le trou traversant, la partie d'insertion (34) formant un espace par rapport à la filière (16). Sur la surface latérale de la partie d'insertion (34) est moulée une première partie rainure (38) pour le moulage d'une première partie en saillie en forme de spirale (42) sur la surface interne du tuyau pendant le moulage par extrusion d'un tuyau (P) à partir de l'espace et sur la paroi du trou traversant (22) est moulée une seconde partie rainure (39) pour le moulage d'une seconde partie en saillie en forme de spirale (43) sur la surface externe du tuyau pendant le moulage par extrusion du tuyau (P) à partir de l'espace.
PCT/JP2015/065872 2014-06-04 2015-06-02 Appareil de fabrication de tuyau, procédé de fabrication de tuyau et tuyau Ceased WO2015186695A1 (fr)

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Application Number Priority Date Filing Date Title
JP2014-115788 2014-06-04
JP2014115788A JP2017131895A (ja) 2014-06-04 2014-06-04 管材製造装置、管材製造方法、および、管材

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105710150A (zh) * 2016-04-19 2016-06-29 镇江索达联轴器有限公司 制作联轴器联接轴用冷挤压模具
CN107052070A (zh) * 2017-04-26 2017-08-18 苏州罗普斯金铝业股份有限公司 一种组配工艺
CN110614284A (zh) * 2019-09-24 2019-12-27 武汉理工大学 薄壁网格筋锥形环件的挤压成形方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111229848B (zh) * 2020-02-27 2021-05-18 北京科技大学 螺杆泵等壁厚空心转子转模挤压成形工艺及成形装置

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3267712A (en) * 1963-12-18 1966-08-23 Purpose Extruded Aluminum Inc Apparatus for forming spiraled extrusions
JPS5141865B2 (fr) * 1972-04-22 1976-11-12
JPS53142359A (en) * 1977-05-17 1978-12-12 Tateyama Aluminum Kogyo Kk Spiral form material and said form material extrude forming process and dies for forming of spiral form matertal
JP2012240084A (ja) * 2011-05-19 2012-12-10 Univ Of Electro-Communications 管材製造装置、管材製造方法、および、管材

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267712A (en) * 1963-12-18 1966-08-23 Purpose Extruded Aluminum Inc Apparatus for forming spiraled extrusions
JPS5141865B2 (fr) * 1972-04-22 1976-11-12
JPS53142359A (en) * 1977-05-17 1978-12-12 Tateyama Aluminum Kogyo Kk Spiral form material and said form material extrude forming process and dies for forming of spiral form matertal
JP2012240084A (ja) * 2011-05-19 2012-12-10 Univ Of Electro-Communications 管材製造装置、管材製造方法、および、管材

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105710150A (zh) * 2016-04-19 2016-06-29 镇江索达联轴器有限公司 制作联轴器联接轴用冷挤压模具
CN107052070A (zh) * 2017-04-26 2017-08-18 苏州罗普斯金铝业股份有限公司 一种组配工艺
CN110614284A (zh) * 2019-09-24 2019-12-27 武汉理工大学 薄壁网格筋锥形环件的挤压成形方法
CN110614284B (zh) * 2019-09-24 2020-10-16 武汉理工大学 薄壁网格筋锥形环件的挤压成形方法

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