CN112610758A - Stable corrosion-resistant stainless steel pipe - Google Patents

Stable corrosion-resistant stainless steel pipe Download PDF

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Publication number
CN112610758A
CN112610758A CN202011542194.XA CN202011542194A CN112610758A CN 112610758 A CN112610758 A CN 112610758A CN 202011542194 A CN202011542194 A CN 202011542194A CN 112610758 A CN112610758 A CN 112610758A
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CN
China
Prior art keywords
corrosion
layer
stainless steel
resistant
pipe body
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Pending
Application number
CN202011542194.XA
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Chinese (zh)
Inventor
周有良
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Dongtai Yongjian Stainless Steel Products Co ltd
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Dongtai Yongjian Stainless Steel Products Co ltd
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Priority to CN202011542194.XA priority Critical patent/CN112610758A/en
Publication of CN112610758A publication Critical patent/CN112610758A/en
Pending legal-status Critical Current

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    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints
    • F16L13/0254—Welded joints the pipes having an internal or external coating
    • F16L13/0263—Welded joints the pipes having an internal or external coating having an internal coating
    • 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
    • B32B15/043—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 of metal
    • 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
    • B32B15/08—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 of synthetic resin
    • B32B15/085—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 of synthetic resin comprising polyolefins
    • 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
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • B32B3/06—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 for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/08—Coatings characterised by the materials used by metal
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention relates to the technical field of stainless steel pipes, in particular to a stable corrosion-resistant stainless steel pipe which comprises a first pipe body and a second pipe body, wherein an extension pipe is arranged on the right side of an inner cavity of the second pipe body, fixing plates are arranged at the upper part and the lower part of the left end of the extension pipe respectively, a through hole is formed in the surface of each fixing plate in a penetrating manner, and connecting blocks are arranged on the upper side and the lower side of the inner cavity of the first pipe body respectively; the invention can assist in fixing and aligning the steel pipe before welding, does not need to use other devices or equipment, simplifies the connection steps, solves the problems that the efficiency is low due to complicated connection steps and the fixing is not stable enough because other devices or equipment are needed to fix and align the steel pipe in the welding process at present, has a corrosion-resistant protection function, effectively prolongs the service life, and avoids the condition that the service life of the stainless steel pipe is greatly shortened due to the fact that the stainless steel pipe is easy to corrode.

Description

Stable corrosion-resistant stainless steel pipe
Technical Field
The invention relates to the technical field of stainless steel pipes, in particular to a stable corrosion-resistant stainless steel pipe.
Background
The stainless steel pipe is an economic section steel, is an important product in the steel industry, and has a wide application range in national economy. The steel pipe has a hollow section, so the steel pipe is most suitable for a liquid, gas and solid conveying pipeline; meanwhile, compared with round steel with the same weight, the steel pipe has large section coefficient and large bending and torsion resistance strength, so the steel pipe also becomes an important material for various machines and building structures. The stainless steel pipe is an economic section steel material for saving metal, is an important component of high-efficiency steel material, and especially has large demand in the industries of petroleum drilling, smelting, conveying and the like, and secondly, a large amount of various steel pipes are needed in the aspects of geological drilling, chemical engineering, building industry, mechanical industry, airplane and automobile manufacturing, boilers, medical instruments, furniture, bicycle manufacturing and the like.
At present, stainless steel pipes are mostly connected between steel pipes by welding, but need other devices or equipment to fix and align the steel pipes in the welding process, the connection step is caused to become fussy and low in efficiency, and the fixation is not firm enough, the environment where the stainless steel pipes are located is easy to corrode, and then the service life of the stainless steel pipes is greatly shortened, therefore, the steel pipes can be subjected to auxiliary fixing and alignment before welding, other devices or equipment do not need to be used, the connection step is simplified, the stainless steel pipes have a corrosion-resistant protection function, and the problem is solved by the stable corrosion-resistant stainless steel pipes with the service life effectively prolonged.
Disclosure of Invention
The invention aims to provide a stable corrosion-resistant stainless steel pipe, which can be used for carrying out auxiliary fixing and alignment on the steel pipe before welding, simplifies the connection steps, solves the problems that the connection steps are complicated and the efficiency is low and the fixing is not stable enough because other devices or equipment are needed to fix and align the steel pipe in the welding process at present, has a corrosion-resistant protection function, and avoids the condition that the service life is shortened because the stainless steel pipe is easy to corrode.
In order to achieve the purpose, the invention provides the following technical scheme: the stable corrosion-resistant stainless steel pipe comprises a first pipe body and a second pipe body, wherein an extension pipe is installed on the right side of an inner cavity of the second pipe body, fixed plates are installed at the upper part and the lower part of the left end of the extension pipe, through holes are formed in the surfaces of the fixed plates in a penetrating manner, connecting blocks are installed on the upper side and the lower side of the inner cavity of the first pipe body, fixed grooves are formed in the surfaces of the connecting blocks and extend into the connecting blocks, the fixed plates are movably connected with the inner walls of the fixed grooves, a shell is installed on the upper side and the lower side of the first pipe body, a movable plate is connected to the inner wall of the shell in a sliding manner, a compression spring and a movable column are installed on the two sides of the movable plate respectively, the other end of the compression spring is fixedly installed on the inner wall of the shell, the other, one side bolt that the activity post was kept away from to the fly leaf has the montant, the other end of montant runs through to the outside of casing, and the inner wall sliding connection of montant and casing through department, the surface in first body and the second body outside all is provided with inboard inoxidizing coating, the opposite side of inboard inoxidizing coating is provided with corrosion-resistant inoxidizing coating, corrosion-resistant inoxidizing coating is including corrosion-resistant dope layer, first corrosion-resistant layer and second corrosion-resistant layer, corrosion-resistant dope layer sets up the outside surface on first corrosion-resistant layer, the surface of second corrosion-resistant layer and inboard inoxidizing coating contacts each other.
Preferably, the inner protective layer comprises an impermeable layer, a buffer layer and two support layers, the two support layers are respectively contacted with the surfaces of the first pipe body and the second pipe body, and the buffer layer is arranged between the impermeable layer and the support layers.
Preferably, the material of the anti-seepage layer is a PE anti-seepage film, and the buffer layer is made of spring steel.
Preferably, the supporting layer is made of nickel-based alloy steel, and the thickness of the supporting layer is 0.5-1 mm.
Preferably, the surfaces of the second corrosion-resistant layer and the impermeable layer are mutually contacted, and the second corrosion-resistant layer is made of a polytetrafluoroethylene corrosion-resistant material.
Preferably, the corrosion-resistant coating layer is an acid-base resistant coating, and the first corrosion-resistant layer is made of a zirconia corrosion-resistant material.
Preferably, one end of the vertical rod, which is far away from the movable plate, is bolted with a connecting plate, and the other end of the connecting plate is bolted with a pull ring.
Preferably, the both sides on connecting plate surface all run through and are provided with the fixed screw, and the inner wall threaded connection of fixed screw and connecting plate department of running through, the surface that the casing is close to connecting plate one side runs through set up threaded hole.
Preferably, one side of the fixed groove, which is far away from the movable column, is provided with an extension groove, and the movable column is movably connected with the inner wall of the extension groove.
Preferably, the whole of connecting block and fixed slot all is the arc, and the fixed plate is similar with the shape of fixed slot inner wall.
Compared with the prior art, the invention has the following beneficial effects:
the invention can assist in fixing and aligning the steel pipe before welding, does not need to use other devices or equipment, simplifies the connection steps, solves the problems that the efficiency is low due to complicated connection steps and the fixing is not stable enough because other devices or equipment are needed to fix and align the steel pipe in the welding process at present, has a corrosion-resistant protection function, effectively prolongs the service life, and avoids the condition that the service life of the stainless steel pipe is greatly shortened due to the fact that the stainless steel pipe is easy to corrode.
Drawings
FIG. 1 is an elevational, cross-sectional view of the structure of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of FIG. 1;
FIG. 3 is a perspective view of a second tubular body according to the present invention;
FIG. 4 is a perspective view of a first tube of the present invention;
FIG. 5 is a perspective view of the connecting block according to the present invention;
FIG. 6 is a structural laminate of an inner protective layer according to the present invention;
fig. 7 is a structural laminate of a corrosion protection layer according to the present invention.
In the figure: 1. a first pipe body; 2. a second tube body; 3. an extension pipe; 4. a fixing plate; 5. a through hole; 6. connecting blocks; 7. fixing grooves; 8. a housing; 9. a movable plate; 10. a compression spring; 11. a movable post; 12. a vertical rod; 13. an inner protective layer; 131. an impermeable layer; 132. a buffer layer; 133. a support layer; 14. a corrosion-resistant protective layer; 141. a corrosion-resistant coating layer; 142. a first corrosion-resistant layer; 143. a second corrosion-resistant layer; 15. a connecting plate; 16. a pull ring; 17. fixing screws; 18. a threaded hole; 19. an extension groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-7, the stable corrosion-resistant stainless steel pipe comprises a first pipe body 1 and a second pipe body 2, an extension pipe 3 is installed on the right side of the inner cavity of the second pipe body 2, fixing plates 4 are installed at the upper and lower parts of the left end of the extension pipe 3, through holes 5 are formed in the surface of the fixing plates 4 in a penetrating manner, connecting blocks 6 are installed on the upper and lower sides of the inner cavity of the first pipe body 1, fixing grooves 7 are formed in the surface of the connecting blocks 6, the fixing grooves 7 extend into the connecting blocks 6, the fixing plates 4 are movably connected with the inner wall of the fixing grooves 7, a casing 8 is installed on the upper and lower sides of the first pipe body 1, a movable plate 9 is slidably connected to the inner wall of the casing 8, a compression spring 10 and a movable column 11 are installed on each side of the movable plate 9, the other end of the compression spring 10 is fixedly installed on the inner wall of the casing 8, the other end of, the movable plate 9 is bolted with a vertical rod 12 at one side far away from the movable column 11, the other end of the vertical rod 12 penetrates to the outer side of the shell 8, the vertical rod 12 is connected with the inner wall of the penetrating part of the shell 8 in a sliding manner, the outer side surfaces of the first pipe body 1 and the second pipe body 2 are both provided with an inner side protective layer 13, the other side of the inner side protective layer 13 is provided with a corrosion-resistant protective layer 14, the corrosion-resistant protective layer 14 comprises a corrosion-resistant coating layer 141, a first corrosion-resistant layer 142 and a second corrosion-resistant layer 143, the corrosion-resistant coating layer 141 is arranged on the outer side surface of the first corrosion-resistant layer 142, the second corrosion-resistant layer 143 is contacted with the surface of the inner side protective layer 13, the stainless steel pipe can be fixed and aligned in an auxiliary manner before welding, other devices or equipment are not needed, the connection step is simplified, and, the steel pipe has the advantages that the efficiency is low due to the fact that the connecting steps are complicated, the steel pipe is not fixed stably enough, meanwhile, the steel pipe has a corrosion-resistant protection function, the service life is effectively prolonged, and the situation that the stainless steel pipe is easily corroded, and the service life of the stainless steel pipe is greatly shortened is avoided.
Referring to fig. 6, the inner protective layer 13 includes an impermeable layer 131, a buffer layer 132 and a support layer 133, the two support layers 133 are respectively in contact with the surfaces of the first pipe body 1 and the second pipe body 2, the buffer layer 132 is disposed between the impermeable layer 131 and the support layers 133, the impermeable layer 131 can effectively prevent corrosive liquid on the outer side from contacting the surface of the steel pipe through the arrangement of the impermeable layer 131, the buffer layer 132 and the support layers 133, meanwhile, the arrangement of the buffer layer 132 can improve the shock resistance of the stainless steel pipe, and the arrangement of the support layers 133 can improve the pressure resistance of the stainless steel pipe.
Referring to fig. 6, the impermeable layer 131 is made of a PE impermeable film, the buffer layer 132 is made of spring steel, and the impermeable layer 131 is made of the PE impermeable film, which has the characteristics of corrosion resistance, low temperature resistance, good freezing resistance, excellent impermeable performance and the like, so that the corrosion resistance and the impermeable performance of the steel pipe are effectively improved.
Referring to fig. 6, the supporting layer 133 is made of nickel-based alloy steel, and the thickness of the supporting layer 133 is 0.5-1mm, and the supporting layer 133 is made of nickel-based alloy steel, which has good compressive resistance and bending resistance.
Referring to fig. 7, the surfaces of the second corrosion-resistant layer 143 and the impermeable layer 131 are in contact with each other, the second corrosion-resistant layer 143 is made of a teflon anticorrosive material, and the teflon anticorrosive material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, so that the corrosion resistance of the stainless steel pipe is effectively improved.
Referring to fig. 7, the corrosion-resistant coating layer 141 is an acid-base resistant coating, the first corrosion-resistant layer 142 is made of a zirconia corrosion-resistant material, and the zirconia corrosion-resistant layer 142 is designed to be made of a zirconia corrosion-resistant material, so that the zirconia material has excellent physical and chemical properties such as high hardness, high strength, high toughness, extremely high wear resistance and chemical corrosion resistance, and the corrosion resistance and wear resistance of the stainless steel pipe are effectively improved.
Referring to fig. 1 and 2, a connecting plate 15 is bolted at one end of the vertical rod 12 away from the movable plate 9, a pull ring 16 is bolted at the other end of the connecting plate 15, and through the arrangement of the connecting plate 15 and the pull ring 16, a worker can pull the pull ring 16 to move the positions of the vertical rod 12, the movable plate 9 and the movable column 11.
Referring to fig. 1 and 2, fixing screws 17 are respectively disposed through two sides of the surface of the connecting plate 15, and the fixing screws 17 are in threaded connection with the inner wall of the through portion of the connecting plate 15, threaded holes 18 are formed through the surface of one side of the housing 8 close to the connecting plate 15, through the arrangement of the fixing screws 17 and the threaded holes 18, after the pipe bodies on two sides are fixed to each other, the connecting plate 15 is tightly attached to the surface of the housing 8, and then the fixing screws 17 can be rotated to enter the threaded holes 18, so that the connecting plate 15 and the housing 8 are fixed to each other, and the vertical rod 12, the movable plate 9 and the movable column 11 cannot move, so that the steel pipes on two sides are prevented from being fixed and loosened due to the movement.
Please refer to fig. 1, the fixed slot 7 is far away from one side of the movable column 11 and is provided with an extending groove 19, and the movable column 11 is movably connected with the inner wall of the extending groove 19, through the arrangement of the extending groove 19, the movable column 11 can pass through the through hole 5 to enter the extending groove 19, and can limit the other end of the movable column 11, because in the process of pulling the steel pipe, the movable column 11 can receive the pulling force to the outside of the steel pipe, and is limited by one end of the movable column 11, so that the movable column 11 is not easy to bend when being pulled, and the fixed firmness is improved.
Referring to fig. 3 and 5, the connecting block 6 and the fixing groove 7 are both arc-shaped, and the fixing plate 4 and the inner wall of the fixing groove 7 are similar in shape, so that the fixing plate 4 and the fixing groove 7 are engaged with each other by designing the fixing plate 4 and the inner wall of the fixing groove 7 to improve fixing firmness.
The working principle is as follows: when the device works, the first pipe body 1 and the second pipe body 2 are firstly taken up, the fixed plate 4 is aligned with the fixed groove 7, then the pipe bodies on two sides are moved, the fixed plate 4 enters the fixed groove 7, the pull rings 16 on the upper side and the lower side are pulled simultaneously, the connecting plates 15, the vertical rods 12, the movable plate 9 and the movable column 11 on the upper side and the lower side start to move in opposite directions until the movable column 11 is separated from the fixed groove 7, the compression spring 10 is in a compression state, then the fixed plate 4 completely enters the fixed groove 7, the through hole 5 and the movable column 11 are aligned with each other, the pull rings 16 are released, the connecting plates 15, the vertical rods 12, the movable plate 9 and the movable column 11 on the upper side and the lower side start to move in opposite directions under the reaction force of the compression spring 10, then the movable column 11 passes through the through hole 5 to enter the extension groove 19, and at the moment the first pipe body 1, the stainless steel pipes are aligned with each other, then the stainless steel pipes can be welded, in the process, the stainless steel pipes can be fixed and aligned in an auxiliary mode before welding, other devices or equipment are not needed, the connecting steps are simplified, and meanwhile the corrosion-resistant coating layer 141, the first corrosion-resistant layer 142 and the second corrosion-resistant layer 143 are arranged, so that the stainless steel pipes have a corrosion-resistant protection function, and the service life is effectively prolonged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. Corrosion-resistant nonrust steel pipe of firm formula, including first body (1) and second body (2), its characterized in that: an extension pipe (3) is installed on the right side of the inner cavity of the second pipe body (2), fixing plates (4) are installed at the upper and lower positions of the left end of the extension pipe (3), through holes (5) are formed in the surface of each fixing plate (4) in a penetrating mode, connecting blocks (6) are installed on the upper and lower sides of the inner cavity of the first pipe body (1), fixing grooves (7) are formed in the surface of each connecting block (6), the fixing grooves (7) extend into the connecting blocks (6), the fixing plates (4) are movably connected with the inner walls of the fixing grooves (7), a shell (8) is installed on each of the upper and lower sides of the first pipe body (1), a movable plate (9) is connected to the inner wall of the shell (8) in a sliding mode, a compression spring (10) and a movable column (11) are installed on each of the two sides of the movable plate (9), and the other, the other end of the movable column (11) penetrates through the inside of the fixed groove (7), the movable column (11) is connected with the inner wall of the penetrating position of the first pipe body (1) and the connecting block (6) in a sliding mode, one side, far away from the movable column (11), of the movable plate (9) is connected with a vertical rod (12) in a bolted mode, the other end of the vertical rod (12) penetrates through the outer side of the shell (8), the vertical rod (12) is connected with the inner wall of the penetrating position of the shell (8) in a sliding mode, the inner side protective layer (13) is arranged on the surface of the outer side of the first pipe body (1) and the surface of the outer side of the second pipe body (2), the corrosion-resistant protective layer (14) is arranged on the other side of the inner side protective layer (13), the corrosion-resistant protective layer (14) comprises a corrosion-resistant coating layer (141), a first corrosion-resistant layer (142) and a second corrosion, the second corrosion-resistant layer (143) is in contact with the surface of the inner protective layer (13).
2. A robust corrosion resistant stainless steel tube according to claim 1, characterized in that: the inner side protection layer (13) comprises an impermeable layer (131), a buffer layer (132) and two support layers (133), the two support layers (133) are respectively contacted with the surfaces of the first pipe body (1) and the second pipe body (2), and the buffer layer (132) is arranged between the impermeable layer (131) and the support layers (133).
3. A robust corrosion resistant stainless steel tube according to claim 2, characterized in that: the material of prevention of seepage layer (131) is PE prevention of seepage membrane, buffer layer (132) are made for spring steel.
4. A robust corrosion resistant stainless steel tube according to claim 2, characterized in that: the supporting layer (133) is made of nickel-based alloy steel, and the thickness of the supporting layer (133) is 0.5-1 mm.
5. A robust corrosion resistant stainless steel tube according to claim 3, characterized in that: the second corrosion-resistant layer (143) is in contact with the surface of the impermeable layer (131), and the second corrosion-resistant layer (143) is made of a polytetrafluoroethylene anticorrosive material.
6. A robust corrosion resistant stainless steel tube according to claim 1, characterized in that: the corrosion-resistant coating layer (141) is acid-base resistant coating, and the first corrosion-resistant layer (142) is made of zirconium oxide anticorrosive material.
7. A robust corrosion resistant stainless steel tube according to claim 1, characterized in that: one end of the vertical rod (12) far away from the movable plate (9) is bolted with a connecting plate (15), and the other end of the connecting plate (15) is bolted with a pull ring (16).
8. The robust corrosion resistant stainless steel tube of claim 7, wherein: both sides on connecting plate (15) surface all run through and are provided with set screw (17), and set screw (17) and the inner wall threaded connection of connecting plate (15) run through the department, threaded hole (18) are run through on the surface that casing (8) are close to connecting plate (15) one side.
9. A robust corrosion resistant stainless steel tube according to claim 1, characterized in that: an extension groove (19) is formed in one side, away from the movable column (11), of the fixing groove (7), and the movable column (11) is movably connected with the inner wall of the extension groove (19).
10. A robust corrosion resistant stainless steel tube according to claim 1, characterized in that: the whole of connecting block (6) and fixed slot (7) all is the arc, and the shape of fixed plate (4) and fixed slot (7) inner wall is similar.
CN202011542194.XA 2020-12-24 2020-12-24 Stable corrosion-resistant stainless steel pipe Pending CN112610758A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113700214A (en) * 2021-09-13 2021-11-26 江苏远大钢结构工程有限公司 Superstrong corrosion-resistant girder steel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2102309A1 (en) * 1991-05-07 1992-11-08 Frederick L. Griffith Conduits having shock absorbing shell and method for their formation
CN208204225U (en) * 2018-03-06 2018-12-07 江苏瑞银不锈钢制品有限公司 A kind of nickel-base alloy steel pipe
CN209115861U (en) * 2018-10-31 2019-07-16 高邮市盛鑫消防科技有限公司 A kind of fire coupling that can quickly connect
CN209370623U (en) * 2018-11-21 2019-09-10 天津市华油钢管有限公司 A kind of corrosion-proof steel pipe of high life
CN210222322U (en) * 2019-09-10 2020-03-31 芜湖新磊塑胶科技有限公司 High resistance to compression HDPE silicon core pipe
CN210372446U (en) * 2019-05-30 2020-04-21 刘杏萍 Insert formula hosepipe interface soon
CN212107260U (en) * 2020-04-27 2020-12-08 佛山市好钢钢管有限公司 Corrosion-resistant cold-drawn steel pipe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2102309A1 (en) * 1991-05-07 1992-11-08 Frederick L. Griffith Conduits having shock absorbing shell and method for their formation
CN208204225U (en) * 2018-03-06 2018-12-07 江苏瑞银不锈钢制品有限公司 A kind of nickel-base alloy steel pipe
CN209115861U (en) * 2018-10-31 2019-07-16 高邮市盛鑫消防科技有限公司 A kind of fire coupling that can quickly connect
CN209370623U (en) * 2018-11-21 2019-09-10 天津市华油钢管有限公司 A kind of corrosion-proof steel pipe of high life
CN210372446U (en) * 2019-05-30 2020-04-21 刘杏萍 Insert formula hosepipe interface soon
CN210222322U (en) * 2019-09-10 2020-03-31 芜湖新磊塑胶科技有限公司 High resistance to compression HDPE silicon core pipe
CN212107260U (en) * 2020-04-27 2020-12-08 佛山市好钢钢管有限公司 Corrosion-resistant cold-drawn steel pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113700214A (en) * 2021-09-13 2021-11-26 江苏远大钢结构工程有限公司 Superstrong corrosion-resistant girder steel

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