CN114872385A - Aluminium alloy section bar - Google Patents

Aluminium alloy section bar Download PDF

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Publication number
CN114872385A
CN114872385A CN202210517039.5A CN202210517039A CN114872385A CN 114872385 A CN114872385 A CN 114872385A CN 202210517039 A CN202210517039 A CN 202210517039A CN 114872385 A CN114872385 A CN 114872385A
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CN
China
Prior art keywords
section bar
tube
section
forming
aluminum alloy
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Granted
Application number
CN202210517039.5A
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Chinese (zh)
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CN114872385B (en
Inventor
李冬玉
杨婷
娄永贵
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Anhui Hongkai Aluminum Technology Co ltd
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Individual
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Priority to CN202210517039.5A priority Critical patent/CN114872385B/en
Publication of CN114872385A publication Critical patent/CN114872385A/en
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Publication of CN114872385B publication Critical patent/CN114872385B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
    • F16S5/00—Other constructional members not restricted to an application fully provided for in a single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention provides an aluminum alloy section, which comprises a circular-tube-shaped inner section and a circular-tube-shaped outer section, wherein three forming grooves which are distributed at equal angles are arranged on the outer circular surface of the inner section, the outer section is sleeved on the outer side of the inner section, three forming tracks are arranged in a tube cavity of the outer section, an inner lining tube with the same length size as the inner section penetrates through a through hole of the inner section, three groups of forming grooves corresponding to the periphery of a clamping groove are arranged on the outer circular surface of the section tube, each group of forming grooves is composed of two long groove units which are symmetrically arranged at two sides of a locking groove, when the outer section tube is sleeved on the outer side of the inner section tube, the long groove units are pressed by utilizing a guide rail to force the long groove units to apply pressure to the locking grooves, so that a reinforcing lining can be fixed in the tube cavity of the section tube on the premise of not needing welding, and welding assembly of the reinforcing lining into the section tube is not needed by a welding gun, the operation is convenient, and the working efficiency is improved.

Description

Aluminium alloy section bar
Technical Field
The invention relates to the technical field of sealing elements, in particular to an aluminum alloy section.
Background
The aluminum alloy tubular section is divided into a round tubular section, a rectangular tubular section, an oval tubular section, a special-shaped tubular section and the like according to the cross section, and the aluminum alloy tubular section is provided with a tube cavity formed along with the tube cavity, so that the aluminum alloy tubular section has high surface decoration performance, light weight and convenient construction in actual use, and has high pressure bearing capacity when being used as a support (such as a stand column) for improving the strength, so that a lining reinforcing piece made of an aluminum alloy material is filled in the tube cavity of the aluminum alloy tubular section, and the more contact points of the lining in the tube cavity of the aluminum alloy tubular section and the inner wall of the tube cavity are, the higher the support strength of the aluminum alloy tubular section is.
The inner lining with a slightly complex cross section shape cannot be discharged simultaneously on a forming machine along with a section by utilizing a forming die, the section is extruded and formed by utilizing the forming machine through a matched die in the actual production, then an inner lining part is extruded and formed by utilizing the forming machine through another matched die, and finally the inner lining is welded into a pipe cavity of the section.
Disclosure of Invention
The invention aims to solve the problem that the lining pipe is positioned in the pipe cavity of the section bar in a welding-free mode through a slide rail positioning mode, so that the working efficiency of assembling a reinforcing structure in the section bar can be improved.
The invention has the technical scheme that the aluminum alloy section comprises a circular-tube-shaped inner section and a circular-tube-shaped outer section, wherein three forming grooves which are distributed at equal angles are formed in the outer circular surface of the inner section, the outer section is sleeved on the outer side of the inner section, three forming tracks are arranged in a tube cavity of the outer section and are in sliding fit in the three forming grooves, so that the outer section is in sliding fit with the outer side of the inner section, a through hole is formed from one end of the inner section to the other end, an inner lining tube with the same length size as the inner section penetrates through the through hole of the inner section, three reinforcing plates which are distributed at equal angles are welded on the outer circular surface of the inner lining tube, the reinforcing plates extend from one end of the inner lining tube to the other end along the length direction of the inner lining tube, three locking grooves are formed in the tube cavity of the inner section, the width end of each reinforcing plate faces the inner tube cavity of the inner section and extends into the locking grooves, the inner section is provided with a reinforcing lining formed by a lining pipe and a reinforcing plate in a pipe cavity, each forming groove is formed by two long groove units which are respectively symmetrical to two sides of the locking groove and a step track positioned between the two long groove units, the locking groove is arranged on the inner side of the step track, the cross section shape of the forming track is equal to that of the forming groove, a plurality of welding spot bulges which slightly bulge towards the directions of the long groove units on the two sides are welded on the two side walls of the step track, and when the forming track is in sliding fit in the forming groove along the linear direction, the step track is pressed inwards through the welding spot bulges on the outer side so as to force the reinforcing plate in the sliding locking groove to be in locking and positioning.
Preferably, the welded joint of the lining pipe and the reinforcing plate is provided with a fillet transition.
Preferably, the distance between the step track and the wall thickness of the long groove unit is smaller than the distance between the step track and the wall thickness of the locking groove.
Preferably, the outer circle surface of the outer section bar is wrapped with an outer layer aluminum alloy tube, and the outer circle surface of the outer layer aluminum alloy tube is subjected to electrophoresis treatment.
Preferably, a space is reserved between the end of the outer layer aluminum alloy pipe and the end of the outer section, the outer section is provided with at least three jacks surrounding the outer section, each jack is located in the space range and is a stepped hole, a spring is fixedly connected in each jack, a push rod penetrates through the inner periphery of the spring, the jacks correspond to the outer side of the long groove unit, locking holes corresponding to the inner sides of the jacks and located on the same axis with the jacks are formed in the long groove unit, and the inner end of the push rod extends towards the locking holes along the jacks.
Preferably, the outer end of the ejector rod is provided with a spherical surface, the spherical surface protrudes outwards from the outer circular surface of the outer section bar, and the inner end of the ejector rod can extend into the locking hole along the jack when the spherical surface is pressed.
Preferably, an end of the outer profile is chamfered.
Compared with the prior art, the invention has the beneficial effects that:
the tubular section consists of an inner layer of pipe fittings and an outer layer of pipe fittings which are sleeved together, then in order to improve the strength of the tubular section, a reinforcing lining consisting of a lining pipe and a reinforcing plate is arranged in a pipe cavity of the inner section pipe, in order to solve the problem that the working efficiency is influenced by the inconvenience brought by the filling and welding of the reinforcing lining to the pipe cavity of the section pipe, the invention arranges three clamping grooves on a through hole of the section pipe, arranges three groups of forming grooves corresponding to the peripheries of the clamping grooves on the outer circumferential surface of the section pipe, each group of forming grooves consists of two long groove units which are symmetrically arranged at two sides of a locking groove, when the outer layer section pipe is sleeved at the outer side of the inner layer section pipe, a guide rail is used for applying pressure to the long groove units, so that the reinforcing lining can be fixed in the pipe cavity of the section pipe without welding, and the reinforcing lining does not need to be welded and assembled by a welding gun when being assembled to the section pipe, the operation is convenient, and meanwhile, the working efficiency is improved.
Drawings
FIG. 1 is a schematic three-dimensional structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the tip portion of the present invention shown in FIG. 1:
FIG. 3 is a schematic structural view of the present invention, which is drawn from FIG. 1, after the inner section, the outer section, the inner lining pipe and the outer layer aluminum alloy pipe which form the section of the present invention are disassembled;
FIG. 4 is a schematic view of the present invention taken from the part A in FIG. 3;
fig. 5 is a partially enlarged structural view of the invention from the portion B in fig. 3.
In the figure: 1. an inner section bar; 2. an outer profile; 3. forming a groove; 4. forming a track; 5. a through hole; 6. a liner tube; 7. a reinforcing plate; 8. a locking groove; 9. reinforcing the inner liner; 10. a long groove unit; 11. a step rail; 12. the welding spot is raised; 13. the fillet is excessive; 14. an outer layer aluminum alloy pipe; 15. spacing; 16. a jack; 17. a spring; 18. a top rod; 19. a locking hole; 20. spherical surface; 21. and (6) chamfering.
Detailed Description
The technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
One embodiment is shown in fig. 1-5.
The aluminum alloy section provided by the embodiment comprises a tubular inner section bar 1 and a tubular outer section bar 2, wherein the tubular inner section bar 1 and the tubular outer section bar 2 are extruded and formed by a section bar machine according to a die with the same shape and then discharged outwards, the forming technology is the prior art and is not repeated, and the aluminum alloy section bar is different from the prior art in the invention: the outer circular surface of the inner section bar 1 is provided with three forming grooves 3 which are distributed at equal angles, the outer section bar 2 is sleeved outside the inner section bar 1, three forming tracks 4 are arranged in the tube cavity of the outer section bar 2, the three forming tracks 4 are matched in the three forming grooves 3 in a sliding way, so that the outer section bar 2 is matched outside the inner section bar 1 in a sliding way, namely the section bar of the structure is a tubular section bar combination formed by sleeving the inner section bar 1 and the outer section bar 2 together, and a through hole 5 is arranged from one end of the inner section bar 1 to the other end, an inner lining pipe 6 which is consistent with the length dimension of the through hole 5 of the inner section bar 1 penetrates through the through hole 5, namely, the structure for improving the strength of the section bar is the inner lining pipe 6, three reinforcing plates 7 which are distributed at equal angles are welded on the outer circular surface of the inner lining pipe 6, and the reinforcing plates 7 extend from one end to the other end along the length direction of the inner lining pipe 6, namely, the length of the lining pipe 6 is consistent with that of the reinforcing plate 7, and the difference of the existing profile internal reinforcing structure is that: the tube cavity of the inner section bar 1 is internally provided with three locking grooves 8, the width end of the reinforcing plate 7 extends towards the inner wall of the tube cavity of the inner section bar 1 and extends into the locking grooves 8, so that a reinforcing lining 9 consisting of the lining tube 6 and the reinforcing plate 7 is formed in the tube cavity of the inner section bar 1, namely, the reinforcing lining 9 is arranged in the through hole 5 of the section bar in an inserting mode, and the reinforcing lining 9 can be ensured not to freely rotate in the through hole 5 of the section bar; because each forming groove 3 is composed of two long groove units 10 which are respectively symmetrical to two sides of the locking groove 8 and a step track 11 which is positioned between the two long groove units 10, wherein the locking groove 8 for assembling the peripheral end of the reinforcing plate 7 is arranged at the inner side of the step track 11, and because the cross section shape of the forming track 4 is equal to that of the forming groove 3, a plurality of welding point bulges 12 which slightly bulge towards the directions of the long groove units 10 at two sides are welded along the two side walls of the step track 11, when the forming track 4 is in sliding fit in the forming groove 3 along the linear direction, the step track 11 is pressed inwards through the welding point bulges 12 at the outer side so as to force the reinforcing plate 7 which is in sliding fit in the locking groove 8 to be locked and positioned, namely, the reinforcing lining 9 is inserted into the through hole 5 of the inner section bar 1 firstly, and simultaneously, the peripheral end of the reinforcing plate 7 is in sliding and overlapping in the locking groove 8, then, the outer section bar 2 is overlapped on the outer side of the inner section bar 1 along the sliding action of the forming track 4 and the long groove unit 10 along one end of the inner section bar, because the sectional outline dimension of the forming track 4 is consistent with the sectional outline dimension of the long groove unit 10, and the welding spot bulge 12 is arranged on the two side walls of the step track 11, namely the inner wall surface of the long groove unit 10, when the forming track 4 is matched along the long groove unit 10 in a sliding way, the welding spot bulge 12 is extruded by the inner wall surface of the forming track 4, as can be seen from the figure, because the wall thickness dimension of the step track 11 away from the long groove unit 10 is smaller than the wall thickness dimension of the step track 11 away from the locking groove 8, when the inner wall surface of the forming track 4 extrudes the welding spot bulge 12, the welding spot bulge 12 can generate internal extrusion on the side wall of the step track 11, and the locking groove 8 on the inner side of the step track 11 is forced to be tightened inwards by the internal extrusion effect, the reinforcing plate 7 can not loosen when the reinforcing plate 7 clamped in the locking groove 8 is fully extruded, and the reinforcing plate 7 can not loosen in the locking groove 8, ensure that the lining pipe 6 can not rotate in the inner section bar 1, and also ensure that two ends of the lining pipe 6 can not exceed two ends of the section bar due to loosening. When strengthening inside lining 9 and assembling to the section bar in as the inside intensity support piece of section bar, need not to weld reinforcing plate 7 in the lumen along the lumen of interior section bar 1 comprehensively, when work efficiency is higher, the fastness is reliable.
In another embodiment, as shown in fig. 1, 2 and 5, an outer aluminum alloy tube 14 is further wrapped on the outer circumferential surface of the outer profile 2, and the outer circumferential surface of the outer aluminum alloy tube 14 is subjected to electrophoresis treatment. The interval 15 is reserved between the end of the outer layer aluminum alloy pipe 14 and the end of the outer section bar 2, the interval 15 is arranged, a narrow-diameter end is formed at the end of the section bar, the outer section bar 2 is provided with at least three jacks 16, the jacks 16 surround the outer section bar 2, the jacks 16 are located in the interval 15, each jack 16 is a stepped hole, each jack 16 is further fixedly connected with a spring 17, a push rod 18 penetrates through the inner periphery of the spring 17, the jacks 16 correspond to the outer side of the long groove unit 10, a locking hole 19 which corresponds to the inner side of each jack 16 and is on the same axis with the jacks 16 is formed in the long groove unit 10, and the inner end of the push rod 18 extends towards the locking hole 19 along the jacks 16. The outer end of the mandrel 18 is provided with a spherical surface 20, the spherical surface 20 protrudes outwards from the outer circular surface of the outer section bar 2, and when the spherical surface 20 is pressed, the inner end of the mandrel 18 can extend into the locking hole 19 along the jack 16, that is, when in actual use, the circular buckle can be sleeved on the interval 15, the buckle can generate friction with the spherical surface 20 when being sleeved on the interval 15, the buckle with the diameter consistent with that of the interval 15 is selected, when the buckle generates friction with the spherical surface 20, the inner diameter can be used for pressing the spherical surface 20, the spherical surface 20 is forced to push the mandrel 18 to extend into the locking hole 19 along the jack 16, because the locking hole 19 is a shallow hole structure on the inner section bar 1, and the mandrel 18 penetrates through the outer section bar 2 when extending into the outer section bar, the long groove unit 10 can be pressed, the two ends of the long groove unit 10 are forced to apply pressure in the radial direction, and radial direction extrusion force can be applied to the reinforcing lining 9 limited in the through hole 5, it is also possible to prevent the reinforcing inserts 9 from rotating or loosening within the profile.
The above-described embodiments further explain the object, technical means, and advantageous effects of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.

Claims (8)

1. Aluminum alloy ex-trusions, including tubular interior section bar (1) and tubular outer section bar (2), its characterized in that of pipe: the outer circular surface of the inner section bar (1) is provided with three forming grooves (3) which are distributed at equal angles, the outer section bar (2) is sleeved on the outer side of the inner section bar (1), three forming tracks (4) are arranged in the tube cavity of the outer section bar (2), the three forming tracks (4) are matched in the three forming grooves (3) in a sliding manner, so that the outer section bar (2) is matched in the outer side of the inner section bar (1) in a sliding manner, a through hole (5) is formed from one end of the inner section bar (1) to the other end, an inner lining tube (6) with the same length size as the outer section bar is penetrated in the through hole (5) of the inner section bar (1), three reinforcing plates (7) which are distributed at equal angles are welded on the outer circular surface of the inner lining tube (6), the reinforcing plates (7) extend from one end to the other end of the inner lining tube (6) along the length direction of the inner lining tube, and three locking grooves (8) are arranged in the tube cavity of the inner section bar (1), the width end of the reinforcing plate (7) extends towards the inner wall of the tube cavity of the inner section bar (1) and extends into the locking groove (8), so that a reinforcing lining (9) consisting of an inner lining tube (6) and the reinforcing plate (7) is formed in the tube cavity of the inner section bar (1), each forming groove (3) consists of two long groove units (10) which are respectively symmetrical to two sides of the locking groove (8) and a step track (11) positioned between the two long groove units (10), wherein the locking groove (8) is arranged on the inner side of the step track (11), the cross section shape of the forming track (4) is equal to that of the forming groove (3), a plurality of welding spot bulges (12) which slightly bulge towards the directions of the two long groove units (10) are welded on two sides along the two side wall surfaces of the step track (11), and the step track (11) is pressed inwards through the welding spot bulges (12) on the outer side when the forming track (4) is in sliding fit in the forming groove (3) along the linear direction, so as to force the reinforcing plate (7) which is in sliding fit in the locking groove (8) to be locked and positioned.
2. Aluminium alloy profile according to claim 1, characterized in that the welded connection of the lining tube (6) and the reinforcement plate (7) is provided with a fillet transition (13).
3. Aluminium alloy profile according to claim 2, wherein the wall thickness of the stepped track (11) from the elongated slot element (10) is smaller than the wall thickness of the stepped track (11) from the locking slot (8).
4. The aluminum alloy profile according to claim 3, wherein the outer circumferential surface of the outer profile (2) is wrapped with an outer aluminum alloy tube (14), and the outer circumferential surface of the outer aluminum alloy tube (14) is subjected to electrophoresis treatment.
5. The aluminum alloy profile according to claim 4, wherein a gap (15) is reserved between the end of the outer layer aluminum alloy pipe (14) and the end of the outer profile (2), the outer profile (2) is provided with at least three insertion holes (16), the insertion holes (16) are arranged around the outer profile (2), the insertion holes (16) are located in the range of the gap (15), each insertion hole (16) is a stepped hole, a spring (17) is fixedly connected in each insertion hole (16), an ejector rod (18) penetrates through the inner periphery of the spring (17), and the insertion holes (16) correspond to the outer side of the long groove unit (10).
6. The aluminum alloy profile according to claim 5, wherein the long groove unit (10) is provided with a locking hole (19) corresponding to the inner side of the insertion hole (16) and coaxial with the insertion hole (16), and the inner end of the ejector rod (18) extends along the insertion hole (16) in the direction towards the locking hole (19).
7. The aluminum alloy profile according to claim 5, wherein the outer end of the mandrel (18) is provided with a spherical surface (20), the spherical surface (20) protrudes outwards from the outer circumferential surface of the outer profile (2), and the inner end of the mandrel (18) can extend into the locking hole (19) along the insertion hole (16) when the spherical surface (20) is pressed.
8. Aluminium alloy profile according to claim 5, characterized in that the end of the outer profile (2) is chamfered (21).
CN202210517039.5A 2022-05-13 2022-05-13 Aluminium alloy section bar Active CN114872385B (en)

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CN114872385B CN114872385B (en) 2024-05-14

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701086A1 (en) * 1994-09-10 1996-03-13 Peter Hartmann Curable hose for lining and manufacturing of pipelines and process of making the same
CN209294654U (en) * 2019-01-11 2019-08-23 张小静 A kind of multi-layer heat preserving filled type pipeline based on hydraulic engineering
WO2020019410A1 (en) * 2018-07-24 2020-01-30 邓雪松 Assembly structure
CN212028917U (en) * 2020-03-03 2020-11-27 上海强月实业发展有限公司 Wear-resistant valve pipe fitting
CN214840055U (en) * 2021-06-19 2021-11-23 河南筑美新型材料有限公司 Windshield aluminum profile
CN114110411A (en) * 2021-11-26 2022-03-01 江苏万和铝业有限公司 Corrosion-resistant super-weather-resistant aluminum alloy section and production process thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701086A1 (en) * 1994-09-10 1996-03-13 Peter Hartmann Curable hose for lining and manufacturing of pipelines and process of making the same
WO2020019410A1 (en) * 2018-07-24 2020-01-30 邓雪松 Assembly structure
CN209294654U (en) * 2019-01-11 2019-08-23 张小静 A kind of multi-layer heat preserving filled type pipeline based on hydraulic engineering
CN212028917U (en) * 2020-03-03 2020-11-27 上海强月实业发展有限公司 Wear-resistant valve pipe fitting
CN214840055U (en) * 2021-06-19 2021-11-23 河南筑美新型材料有限公司 Windshield aluminum profile
CN114110411A (en) * 2021-11-26 2022-03-01 江苏万和铝业有限公司 Corrosion-resistant super-weather-resistant aluminum alloy section and production process thereof

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