CN117588612A - Cast iron pipe lined with stainless steel pipe and manufacturing method thereof - Google Patents
Cast iron pipe lined with stainless steel pipe and manufacturing method thereof Download PDFInfo
- Publication number
- CN117588612A CN117588612A CN202311804521.8A CN202311804521A CN117588612A CN 117588612 A CN117588612 A CN 117588612A CN 202311804521 A CN202311804521 A CN 202311804521A CN 117588612 A CN117588612 A CN 117588612A
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- China
- Prior art keywords
- stainless steel
- cast iron
- steel pipe
- roller
- adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000010935 stainless steel Substances 0.000 title claims abstract description 129
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 129
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000003755 preservative agent Substances 0.000 claims description 8
- 230000002335 preservative effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 5
- 238000005536 corrosion prevention Methods 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002421 anti-septic effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to a technical field of cast iron pipe especially relates to a lining stainless steel pipe cast iron pipe and manufacturing method thereof, establish at the outside nodular cast iron pipe of lining stainless steel pipe including lining stainless steel pipe and cover, it is used for anticorrosive antiseptic to fill between lining stainless steel pipe and the nodular cast iron pipe, the integrative turn-ups that is provided with of lining stainless steel pipe tip, the turn-ups cover is established in the outside of nodular cast iron pipe and is used for sealing the clearance department between lining stainless steel pipe and the nodular cast iron pipe. The application has the effect of improving the corrosion resistance of the cast iron pipe.
Description
Technical Field
The application relates to the technical field of cast iron pipes, in particular to a cast iron pipe with a stainless steel liner and a manufacturing method thereof.
Background
When the stainless steel cast iron pipe is lined, the thin-wall stainless steel pipe is compounded on the inner wall of the cast iron pipe, the corrosion resistance of the steel pipe in the water conveying, hot water conveying, gas conveying, natural gas conveying and oil conveying processes is greatly improved, the surface is smooth, the fluid resistance is small, and the high mechanical strength of the steel pipe is maintained. In addition, the galvanized steel pipe is welded, grooved and screwed, has good sealing performance, overcomes the defects that galvanized steel pipes are easy to corrode and plastic pipes connected by hot melting are easy to leak and age, and is an ideal product for upgrading and upgrading of gas transmission, water transmission and oil transmission steel pipes.
However, after a conventional stainless steel cast iron pipe is used for a period of time, a gap between the stainless steel pipe and the cast iron pipe can cause corrosion phenomenon in the stainless steel pipe and the cast iron pipe due to insufficient tightness, so that the use is affected.
Disclosure of Invention
In order to improve corrosion resistance of cast iron pipe, the application provides a cast iron pipe lined with stainless steel pipe and a manufacturing method thereof
In a first aspect, the present application provides a lined stainless steel pipe cast iron pipe.
The following technical scheme is adopted:
the utility model provides a lining stainless steel pipe cast iron pipe, includes lining stainless steel pipe and cover establishes the outside nodular cast iron pipe at lining stainless steel pipe, it is used for anticorrosive preservative to fill between lining stainless steel pipe and the nodular cast iron pipe, lining stainless steel pipe tip an organic whole is provided with the turn-ups, the turn-ups cover is established in the outside of nodular cast iron pipe and is used for sealing the clearance department between lining stainless steel pipe and the nodular cast iron pipe.
Through adopting above-mentioned technical scheme, set up the turn-ups at the tip of inside lining stainless steel pipe, carry out the shutoff through the turn-ups to the clearance between inside lining stainless steel and the nodular cast iron pipe, promote holistic leakproofness, and then promote holistic corrosion resistance.
Optionally, the outside cover of nodular cast iron pipe is equipped with outer stainless steel pipe, the tip of outer stainless steel pipe extends to between turn-ups and the nodular cast iron pipe, outer stainless steel pipe is used for carrying out the shutoff to the clearance between turn-ups and the nodular cast iron pipe.
Through adopting above-mentioned technical scheme, set up outer stainless steel pipe between turn-ups and nodular cast iron pipe, seal the clearance department between turn-ups and the nodular cast iron pipe through outer stainless steel pipe, further promote holistic leakproofness and corrosion resistance.
In a second aspect, the present application provides a method of manufacturing a cast iron pipe lined with stainless steel pipe
The technical scheme is as follows:
a manufacturing method of a cast iron pipe with a stainless steel lining comprises the following steps:
coiling a stainless steel strip into a tube shape, and then welding and fixing the gap of the steel strip to form a stainless steel tube with a lining;
placing the lining stainless steel tube in the spheroidal graphite cast iron tube;
filling a gap between the lining stainless steel pipe and the ductile cast iron pipe with a preservative for corrosion prevention;
performing diameter expansion treatment on the stainless steel pipe with the lining by adopting a diameter expansion device, attaching the stainless steel pipe with the inner wall of the nodular cast iron pipe, and connecting the stainless steel pipe with the nodular cast iron pipe by adopting a high-temperature vulcanization process;
carrying out flanging treatment on the end of the lining stainless steel pipe, and matching the flanging with the outer side of the nodular cast iron pipe;
an outer layer stainless steel pipe is sleeved at the end part of the spheroidal graphite cast iron pipe, and one end of the outer layer stainless steel pipe extends between the flanging and the spheroidal graphite cast iron pipe;
and respectively sealing and welding the gap between the outer stainless steel tube and the nodular cast iron tube and the gap between the flanging and the outer stainless steel tube.
Through adopting above-mentioned technical scheme, carry out the turn-ups at the tip of inside lining stainless steel, promote the leakproofness of body tip through turn-ups and outer stainless steel pipe, and then promote holistic corrosion resistance.
Optionally, the expanding device includes the mount table and sets up the board of placing that is used for placing the nodular cast iron pipe on the mount table, be provided with first driving piece on the mount table, the output of first driving piece is provided with the bracing piece, bracing piece and the coaxial setting of nodular cast iron pipe, the outside of bracing piece is provided with the accepting roller, be provided with screw thread portion on the bracing piece, the bracing piece passes through screw thread portion and accepting roller screw thread fit connection, the outside of accepting roller is provided with the expanding roller that is used for expanding, be provided with power component on the bracing piece, power component and accepting roller are connected and are used for driving accepting roller rotation, the driving piece drives the bracing piece and places the board butt and be used for supporting accepting roller.
Through adopting above-mentioned technical scheme, first driving piece drives the bracing piece and places the board butt and support the uptake roller, then power component drives the uptake roller and rotates in inside lining stainless steel pipe, drives the hole enlargement roller and rotates the hole enlargement to inside lining stainless steel pipe, and the uptake roller removes under the effect of screw portion simultaneously, realizes carrying out the hole enlargement to different positions in the inside lining stainless steel pipe.
Optionally, power pack includes intermediate lever, mounting panel, second driving piece and slip, the slide slides on the bracing piece and sets up, intermediate lever and mounting panel are all with the axle sleeve outside at the bracing piece, the mounting panel passes through intermediate lever and is connected with the uptake roller, the second driving piece sets up on the slide, slide and mounting panel rotate to be connected, coaxial being provided with the drive ring gear on the mounting panel, the output of second driving piece is provided with the drive gear with drive ring gear meshing.
Through adopting above-mentioned technical scheme, the second driving piece drives the drive ring gear through drive gear and rotates, and the drive ring gear rotates and drives the mounting panel rotation, and the mounting panel drives the intermediate lever and rotates, and the intermediate lever rotates and drives the receiving roller and rotate, and then drives the hole enlargement roller and rotates and expand the footpath to inside lining stainless steel pipe.
Optionally, the standing groove that is used for placing the expanding roller has been seted up to the side of accepting the roller, set up the mounting groove with the standing groove intercommunication in the accepting the roller, the tip of expanding roller is provided with the connecting rod, the connecting rod slides along the direction towards accepting the roller axis in the mounting groove and sets up, be provided with adjusting device in the mounting groove, adjusting device and connecting rod are connected and are used for adjusting the position of connecting rod.
Through adopting above-mentioned technical scheme, under the initial condition, the expanding roller is placed in the standing groove, will accept the roller and remove in the inside lining stainless steel pipe, adjusting device drives the connecting rod and remove, and then adjusts the position of expanding roller to follow-up carry out the expanding to inside lining stainless steel pipe.
Optionally, adjusting device includes regulating disk and adapter sleeve, the regulating disk rotates the setting in the mounting groove, the both ends of regulating disk and expanding roller correspond and are provided with two, the adapter sleeve sets up and is used for connecting both between two regulating disks, the regulating tank has been seted up on the regulating disk, the regulating tank sets up to the arc around the center of regulating disk, the one end of regulating tank is along deviating from the direction slope setting at regulating disk center, be provided with the kink on the connecting rod, the kink is in the interior sliding arrangement of regulating tank.
Through adopting above-mentioned technical scheme, the regulating disk rotates, drives the different positions and the kink butt in the adjustment tank, and then drives the connecting rod and remove, and then adjusts the position of expanding roller.
Optionally, adjusting device still includes regulation pole, cooperation pole and regulating part, the outside at the bracing piece is established to the regulation pole cover, the opening with the mounting groove intercommunication has been seted up to the tip of accepting roller, the cooperation pole sets up on adjusting the pole, the cooperation pole extends to the mounting groove through the opening in and is connected with accepting roller, it rotates with the mounting panel to adjust the pole and is connected, the regulating part includes worm wheel, worm and third driving piece, worm wheel and worm rotate the setting in the mounting panel, worm wheel and worm meshing, the outside at the regulation pole is established with the axle sleeve to the worm wheel, the tip of worm extends to the outside of mounting panel and the output of third driving piece is connected.
Through adopting above-mentioned technical scheme, the third driving piece drives worm and worm wheel rotation, and the worm wheel drives the regulation pole and rotates, adjusts the pole and rotate in the opening through the cooperation pole, and then drives the adjustment disk and rotate the position of expanding the roller and adjust, and worm wheel and worm cooperation have the auto-lock nature simultaneously, after the position control to the expanding roller, reduce the phenomenon that the skew appears in the expanding roller, promote the stability of expanding roller.
Optionally, the one end that the uptake roller deviates from the mounting panel rotates and is provided with the transition roller, the one end that the transition roller deviates from the mounting panel sets up along the direction slope towards the uptake roller axis.
Through adopting above-mentioned technical scheme, when the receiving roll rotates and drives the expanding roller and carry out the expanding operation, carry out preliminary expanding through the transition roller is supplementary to the expanding roller moves along with the receiving roll in inside lining stainless steel pipe, promotes the effect of whole expanding.
Drawings
Fig. 1 is a structural view of a cast iron pipe lined with stainless steel pipe in an embodiment of the present application.
Fig. 2 is a structural view of the diameter-enlarging apparatus in the embodiment of the present application.
Fig. 3 is a partial view of an expanding device in an embodiment of the present application.
Fig. 4 is a structural view of the diameter-enlarging roller in the embodiment of the present application.
Fig. 5 is a structural view of the placement groove in the embodiment of the present application.
Fig. 6 is a structural view of the conditioning disk in an embodiment of the present application.
Fig. 7 is a structural view of an adjusting member in the embodiment of the present application.
Fig. 8 is a structural view of a transition roller in an embodiment of the present application.
Reference numerals: 01. lining a stainless steel tube; 02. a ductile iron pipe; 03. flanging; 04. an outer stainless steel tube; 1. a mounting table; 11. placing a plate; 2. a support assembly; 21. a support rod; 211. a threaded portion; 22. a first driving member; 3. a receiving roller; 31. a placement groove; 32. a mounting groove; 33. an opening; 4. an expanding roller; 41. a connecting rod; 411. a bending part; 5. a power assembly; 51. an intermediate lever; 52. a mounting plate; 521. driving the toothed ring; 53. a second driving member; 531. a drive gear; 54. a slide; 6. an adjusting device; 61. an adjusting plate; 62. connecting sleeves; 63. an adjusting rod; 64. a mating lever; 65. an adjusting member; 651. a worm wheel; 652. a worm; 653. a third driving member; 7. an adjustment tank; 8. a transition roller; 9. an auxiliary frame.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-8.
The application discloses a cast iron pipe lined with stainless steel pipes.
Referring to fig. 1, the stainless steel pipe-lined cast iron pipe comprises a stainless steel pipe-lined pipe 01 and a ductile cast iron pipe 02 sleeved outside the stainless steel pipe-lined pipe 01, wherein the stainless steel pipe-lined pipe 01 is formed by coiling a steel belt, in the embodiment, the stainless steel pipe-lined cast iron pipe is formed by spirally coiling the steel belt into a pipe shape and then welding, namely, a welding seam is spirally formed on the stainless steel pipe-lined pipe 01 after welding is completed. In other embodiments, the gap can be welded after the steel strip is directly wound into a tube shape, namely the welding seam can be a straight seam.
Referring to fig. 1, a preservative is filled between a stainless steel pipe 01 and a ductile cast iron pipe 02, in this embodiment, the preservative is polyurethane or epoxy resin, and a preservative layer is filled between the stainless steel pipe 01 and the ductile cast iron pipe 02, and meanwhile, the stainless steel pipe has the characteristics of high temperature resistance and wear resistance. The flange 03 is integrally arranged at the end part of the lining stainless steel pipe 01, the flange 03 is sleeved outside the ductile cast iron pipe 02 and used for plugging a gap between the lining stainless steel pipe 01 and the ductile cast iron pipe 02, and the integral corrosion resistance is improved.
Referring to fig. 1, an outer stainless steel pipe 04 is further disposed outside the ductile cast iron pipe 02, the outer stainless steel pipe 04 is disposed near an end of the ductile cast iron pipe 02, the end of the outer stainless steel pipe 04 extends between the flange 03 and the ductile cast iron pipe 02, and the outer stainless steel pipe 04, the flange 03 and the ductile cast iron pipe 02 are all fixed through welding and sealing. The gap between the flanging 03 and the nodular cast iron pipe 02 is plugged through the outer stainless steel pipe 04, so that the overall tightness is further improved.
The implementation principle of the application is as follows: the flange 03 is arranged at the end part of the lining stainless steel pipe 01, meanwhile, the flange 03 is sleeved at the end part of the ductile cast iron pipe 02 and is used for sealing a gap between the lining stainless steel pipe 01 and the ductile cast iron pipe 02, so that the overall tightness is improved, and the overall corrosion resistance is further improved.
The application also discloses a manufacturing method of the lining stainless steel pipe cast iron pipe, which is used for manufacturing the lining stainless steel pipe cast iron pipe.
A manufacturing method of a cast iron pipe with a stainless steel lining comprises the following steps:
s1, coiling a stainless steel strip into a tube shape, and then welding and fixing a gap of the steel strip to form a stainless steel tube 01 with a lining;
s2, penetrating the stainless steel pipe 01 with the lining into the nodular cast iron pipe 02;
s3, filling a preservative for corrosion prevention in a gap between the stainless steel pipe 01 and the nodular cast iron pipe 02, wherein the preservative adopts polyurethane or epoxy resin;
s4, performing diameter expansion treatment on the stainless steel pipe 01 by adopting a diameter expansion device, attaching the stainless steel pipe 01 to the inner wall of the nodular cast iron pipe 02, and connecting the stainless steel pipe 01 and the nodular cast iron pipe by using a high-temperature vulcanization process;
s5, carrying out flanging 03 treatment on the end of the lining stainless steel pipe 01, matching the flanging 03 with the outer side of the ductile cast iron pipe 02, and sealing the gap between the ductile cast iron pipe 02 and the lining stainless steel pipe 01 through the flanging 03;
s6, sleeving an outer stainless steel tube 04 at the end part of the spheroidal graphite cast iron tube 02, wherein one end of the outer stainless steel tube 04 extends between the flanging 03 and the spheroidal graphite cast iron tube 02;
s7, respectively sealing and welding the gap between the outer layer stainless steel tube 04 and the nodular cast iron tube 02 and the gap between the flanging 03 and the outer layer stainless steel tube 04.
Wherein, referring to fig. 2 and 3, the expanding device includes mount table 1 and place board 11 of setting on mount table 1, spheroidal graphite cast iron pipe 02 place on place board 11 horizontal direction, set up supporting component 2 on mount table 1, supporting component 2 includes bracing piece 21 and first driver 22, bracing piece 21 level sets up, first driver 22 sets up to the cylinder, bracing piece 21 sets up the output at first driver 22. The receiving roller 3 is coaxially provided outside the support rod 21, a plurality of diameter-enlarging rollers 4 are provided on the side surface of the receiving roller 3, and the plurality of diameter-enlarging rollers 4 are provided around the center line of the receiving roller 3. The power assembly 5 is arranged on the supporting rod 21, the power assembly 5 is connected with the receiving roller 3, the threaded part 211 is arranged on the supporting rod 21, and the supporting rod 21 penetrates through the receiving roller 3 and is in threaded fit connection with the receiving roller 3.
When expanding, place spheroidal graphite cast iron pipe 02 on placing board 11, then first driver 22 drive bracing piece 21 to spheroidal graphite cast iron pipe 02 in with place board 11 butt simultaneously, the center coincidence of bracing piece 21 and spheroidal graphite cast iron pipe 02 simultaneously, then power pack 5 drive take-up roll 3 pivoted while on bracing piece 21 under the effect of screw portion 211, take-up roll 3 pivoted drive expanding roll 4 pivoted, carry out the expanding operation to inside lining stainless steel through expanding roll 4.
Referring to fig. 2 and 3, the power assembly 5 includes an intermediate lever 51, a mounting plate 52, a second driving member 53 and a sliding seat 54, the mounting plate 52 is sleeved on the supporting rod 21, the mounting plate 52 is rotatably disposed outside the supporting rod 21, the intermediate lever 51 is disposed between the mounting plate 52 and the receiving roller 3, the intermediate lever 51 is coaxially sleeved outside the supporting rod 21, two ends of the intermediate lever 51 are respectively connected with the receiving roller 3 and the mounting plate 52, the sliding seat 54 is disposed on one side of the mounting plate 52 away from the receiving roller 3, the sliding seat 54 is slidably disposed on the supporting rod 21 along the length direction of the supporting rod 21, the second driving member 53 is disposed on the sliding seat 54, the second driving member 53 may be configured as a motor, a driving gear 531 is disposed at an output end of the second driving member 53, a driving toothed ring 521 is coaxially disposed on one side of the mounting plate 52 close to the second driving member 53, and the driving gear 531 is meshed with the driving toothed ring 521. The second driving piece 53 drives the driving toothed ring 521 to rotate through the driving gear 531, drives the mounting plate 52 and the middle rod 51 to rotate through the driving toothed ring 521, and then drives the receiving roller 3 to rotate, and simultaneously, under the action of the threaded portion 211, the receiving roller 3 moves relative to the supporting rod 21 while rotating, so as to perform expanding operation on different positions in the stainless steel pipe 01. The slider 54 and the mounting plate 52 are rotatably connected so that when the receiving roller 3 moves, the slider 54 can move with the mounting plate 52, so that the drive gear 531 and the drive ring gear 521 are stably engaged.
Referring to fig. 4 and 5, a placement groove 31 for placing the diameter-enlarging roller 4 is formed in the side surface of the receiving roller 3, a mounting groove 32 is formed in the receiving roller 3, the mounting groove 32 is communicated with the placement groove 31, connecting rods 41 are arranged at two ends of the diameter-enlarging roller 4, the connecting rods 41 are slidably arranged in the mounting groove 32 along the direction facing the axis of the receiving roller 3, an adjusting device 6 is arranged in the mounting groove 32, the adjusting device 6 is connected with the connecting rods 41, and the adjusting device 6 is used for adjusting the positions of the connecting rods 41. In the initial state, the diameter-enlarging roller 4 is placed in the placing groove 31, after the receiving roller 3 moves into the lining stainless steel pipe 01, the adjusting device 6 adjusts the diameter-enlarging roller 4 to the outside of the placing groove 31, namely, the diameter-enlarging roller 4 moves along the direction away from the receiving roller 3, so that the diameter-enlarging roller 4 is abutted with the inner wall of the lining stainless steel pipe 01, and diameter enlargement is performed.
Referring to fig. 4 and 6, the adjusting device 6 includes an adjusting plate 61, a connecting sleeve 62, an adjusting lever 63, a fitting lever 64 and an adjusting member 65, the adjusting plate 61 is provided with two, and the two adjusting plates 61 are respectively provided at both ends of the diameter-enlarging roller 4, the connecting sleeve 62 is provided between the two adjusting plates 61 for connecting the two, a plurality of adjusting grooves 7 are provided on the adjusting plate 61, the plurality of adjusting grooves 7 and the plurality of diameter-enlarging rollers 4 are provided in one-to-one correspondence, the adjusting grooves 7 are provided in an arc shape around the center of the adjusting plate 61, one end of the adjusting groove 7 is provided obliquely in a direction away from the center of the adjusting plate 61, a bending part 411 is provided on the connecting rod 41, the bending part 411 is provided slidably in the adjusting groove 7, an opening 33 communicating with the mounting groove 32 is provided at one side of the receiving roller 3 near the mounting plate 52, the adjusting lever 63 is coaxially provided outside the supporting rod 21, and the adjusting lever 63 is rotatably connected with the mounting plate 52, the fitting lever 64 is provided at one end of the adjusting lever 63 near the receiving roller 3, the fitting lever 64 extends into the mounting groove 32 through the opening 33 and is connected with the adjusting plate 61. The adjusting piece 65 is arranged on the mounting plate 52, and the adjusting piece 65 and the adjusting rod 63 are connected to drive the adjusting rod 63 to rotate.
When the position of the diameter expanding roller 4 needs to be adjusted, the adjusting piece 65 drives the adjusting rod 63 to rotate, the adjusting rod 63 drives the adjusting disc 61 to rotate through the matching rod 64, and drives different positions in the adjusting groove 7 to match with the bending part 411 to drive the connecting rod 41 to move, so that the position of the diameter expanding roller 4 is adjusted.
Referring to fig. 6 and 7, the end of the adjusting lever 63 is inserted into the mounting plate 52, the adjusting member 65 includes a worm wheel 651, a worm 652 and a third driving member 653, the worm wheel 651 and the worm 652 are rotatably disposed in the mounting plate 52, the worm wheel 651 is coaxially sleeved outside the adjusting lever 63, the worm 652 is engaged with the worm wheel 651, the third driving member 653 may be provided as a motor, the third driving member 653 is disposed outside the mounting plate 52, and the end of the worm 652 extends to the outside of the mounting plate 52 and is connected to the output end of the third driving member 653. The third driving member 653 drives the worm wheel 651 to rotate through the worm 652, and the worm wheel 651 rotates to drive the adjusting lever 63 to rotate, thereby adjusting the position of the diameter-enlarging roller 4.
Referring to fig. 7 and 8, a transition roller 8 is rotatably provided at one end of the receiving roller 3 facing away from the mounting plate 52, a plurality of transition rollers 8 are provided around the axis of the receiving roller 3, and one end of the transition roller 8 facing away from the mounting plate 52 is inclined in a direction toward the axis of the receiving roller 3. When the receiving roller 3 rotates to drive the expanding roller 4 to perform expanding operation, preliminary expanding is performed through the assistance of the transition roller 8, so that the phenomenon that the end of the expanding roller 4 is in hard contact with the inner wall of the lining stainless steel pipe 01 when the expanding roller 4 moves to a position where the diameter is not expanded in the lining stainless steel pipe 01 is reduced, and the expanding roller 4 moves along with the receiving roller 3 in the lining stainless steel pipe 01, and the overall expanding effect is improved.
Referring to fig. 7 and 8, a plurality of transition rollers 8 and a plurality of diameter-enlarging rollers 4 are provided in one-to-one correspondence, an auxiliary frame 9 is provided on the transition rollers 8, the transition rollers 8 are rotatably provided on the auxiliary frame 9, and the auxiliary frame 9 is connected to a connecting rod 41. When the expanding roller 4 moves to the outside of the placing groove 31 to be gradually unfolded, the transition roller 8 is driven by the auxiliary frame 9 to move so as to realize synchronous unfolding, so that auxiliary expanding is carried out.
The implementation principle of the application is as follows: the second driving piece 53 drives the receiving roller 3 to rotate, the receiving roller 3 moves along the length direction of the supporting rod 21 under the action of the threaded portion 211 while rotating, and simultaneously drives the diameter expanding roller 4 and the transition roller 8 to rotate to be abutted with different positions in the lining stainless steel, so as to expand the diameter of the lining stainless steel pipe 01.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. A cast iron pipe lined with stainless steel pipe, which is characterized in that: including inside lining stainless steel pipe (01) and cover establish at outside nodular cast iron pipe (02) of inside lining stainless steel pipe (01), it is used for anticorrosive to fill between inside lining stainless steel pipe (01) and nodular cast iron pipe (02), inside lining stainless steel pipe (01) tip an organic whole is provided with turn-ups (03), turn-ups (03) cover is established in the outside of nodular cast iron pipe (02) and is used for sealing the clearance between inside lining stainless steel pipe (01) and nodular cast iron pipe (02).
2. The lined stainless steel pipe cast iron pipe of claim 1, wherein: the outer sleeve of ductile cast iron pipe (02) is equipped with outer stainless steel pipe (04), the tip of outer stainless steel pipe (04) extends to between turn-ups (03) and ductile cast iron pipe (02), outer stainless steel pipe (04) are used for carrying out the shutoff to the clearance between turn-ups (03) and ductile cast iron pipe (02).
3. A method of manufacturing a lined stainless steel pipe cast iron pipe as defined in claim 2, comprising the steps of:
coiling a stainless steel strip into a tube shape, and then welding and fixing the gap of the steel strip to form a stainless steel tube (01) with a lining;
placing the lining stainless steel tube (01) in the nodular cast iron tube (02);
filling a gap between the stainless steel pipe (01) and the nodular cast iron pipe (02) with a preservative for corrosion prevention;
the diameter-enlarging device is adopted to carry out diameter-enlarging treatment on the stainless steel tube (01) with the lining, the stainless steel tube (01) with the lining is attached to the inner wall of the nodular cast iron tube (02), and then the stainless steel tube (01) with the lining and the nodular cast iron tube are connected by using a high-temperature vulcanization process;
carrying out flanging (03) treatment on the end of the lining stainless steel pipe (01), and matching the flanging (03) with the outer side of the nodular cast iron pipe (02);
an outer stainless steel pipe (04) is sleeved at the end part of the spheroidal graphite cast iron pipe (02), and one end of the outer stainless steel pipe (04) extends between the flanging (03) and the spheroidal graphite cast iron pipe (02);
and respectively sealing and welding the gap between the outer layer stainless steel tube (04) and the nodular cast iron tube (02) and the gap between the flanging (03) and the outer layer stainless steel tube (04).
4. A method of manufacturing a lined stainless steel pipe cast iron pipe according to claim 3, wherein: the expanding device comprises a mounting table (1) and a placing plate (11) arranged on the mounting table (1) and used for placing a nodular cast iron pipe (02), a first driving piece (22) is arranged on the mounting table (1), a supporting rod (21) is arranged at the output end of the first driving piece (22), the supporting rod (21) and the nodular cast iron pipe (02) are coaxially arranged, a receiving roller (3) is arranged outside the supporting rod (21), a threaded portion (211) is arranged on the supporting rod (21), the supporting rod (21) is connected with the receiving roller (3) through the threaded portion (211) in a threaded fit manner, an expanding roller (4) used for expanding the diameter is arranged outside the receiving roller (3), a power assembly (5) is arranged on the supporting rod (21), the power assembly (5) is connected with the receiving roller (3) and used for driving the receiving roller (3) to rotate, and the supporting rod (21) is driven by the first driving piece (22) and the placing plate (11) to be abutted against the receiving roller (3).
5. The method for manufacturing a cast iron pipe lined with a stainless steel pipe according to claim 4, wherein: the power assembly (5) comprises a middle rod (51), a mounting plate (52), a second driving piece (53) and a sliding seat (54), wherein the sliding seat (54) is arranged on a supporting rod (21) in a sliding mode, the middle rod (51) and the mounting plate (52) are coaxially sleeved outside the supporting rod (21), the mounting plate (52) is connected with a receiving roller (3) through the middle rod (51), the second driving piece (53) is arranged on the sliding seat (54), the sliding seat (54) is rotationally connected with the mounting plate (52), a driving toothed ring (521) is coaxially arranged on the mounting plate (52), and a driving gear (531) meshed with the driving toothed ring (521) is arranged at the output end of the second driving piece (53).
6. The method for manufacturing a cast iron pipe lined with a stainless steel pipe according to claim 5, wherein: the utility model discloses a diameter-enlarging roller (3) is used for placing holding tank (31) of diameter-enlarging roller (4) in the side of holding roller (3), holding tank (32) with holding tank (31) intercommunication have been seted up in holding roller (3), the tip of diameter-enlarging roller (4) is provided with connecting rod (41), connecting rod (41) are provided with adjusting device (6) in holding tank (32) along the direction slip setting towards holding roller (3) axis in mounting tank (32), adjusting device (6) and connecting rod (41) are connected and are used for adjusting the position of connecting rod (41).
7. The method for manufacturing a cast iron pipe lined with a stainless steel pipe according to claim 6, wherein: the adjusting device comprises an adjusting disc (61) and a connecting sleeve (62), wherein the adjusting disc (61) is arranged in a rotating mode in a mounting groove (32), two ends of the adjusting disc (61) and two ends of a diameter expanding roller (4) are correspondingly provided with two adjusting discs, the connecting sleeve (62) is arranged between the two adjusting discs (61) and is used for connecting the two adjusting discs, an adjusting groove (7) is formed in the adjusting disc (61), the adjusting groove (7) is arranged in an arc shape around the center of the adjusting disc (61), one end of the adjusting groove (7) is obliquely arranged in a direction away from the center of the adjusting disc (61), and a bending part (411) is arranged on the connecting rod (41) in a sliding mode in the adjusting groove (7).
8. The method for manufacturing a cast iron pipe lined with a stainless steel pipe according to claim 7, wherein: the adjusting device is characterized in that the adjusting device (6) further comprises an adjusting rod (63), a matching rod (64) and an adjusting piece (65), the adjusting rod (63) is sleeved outside the supporting rod (21), an opening (33) communicated with the mounting groove (32) is formed in the end portion of the bearing roller (3), the matching rod (64) is arranged on the adjusting rod (63), the matching rod (64) extends into the mounting groove (32) through the opening (33) to be connected with the bearing roller (3), the adjusting rod (63) is rotationally connected with the mounting plate (52), the adjusting piece (65) comprises a worm wheel (651), a worm (652) and a third driving piece (653), the worm wheel (651) and the worm (652) are rotationally arranged in the mounting plate (52), the worm wheel (651) is meshed with the worm (652), the worm wheel (651) is coaxially sleeved outside the adjusting rod (63), and the end portion of the worm (652) extends to the outside of the mounting plate (52) to be connected with the output end of the third driving piece (653).
9. The method for manufacturing a cast iron pipe lined with a stainless steel pipe according to claim 6, wherein: one end of the receiving roller (3) deviating from the mounting plate (52) is rotatably provided with a transition roller (8), and one end of the transition roller (8) deviating from the mounting plate (52) is obliquely arranged along the direction facing the axis of the receiving roller (3).
10. The method for manufacturing a cast iron pipe lined with a stainless steel pipe according to claim 9, wherein: the transition roller (8) is provided with an auxiliary frame (9), the transition roller (8) is rotatably arranged on the auxiliary frame (9), and the auxiliary frame (9) is connected with a connecting rod (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311804521.8A CN117588612A (en) | 2023-12-25 | 2023-12-25 | Cast iron pipe lined with stainless steel pipe and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311804521.8A CN117588612A (en) | 2023-12-25 | 2023-12-25 | Cast iron pipe lined with stainless steel pipe and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN117588612A true CN117588612A (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311804521.8A Pending CN117588612A (en) | 2023-12-25 | 2023-12-25 | Cast iron pipe lined with stainless steel pipe and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118128982A (en) * | 2024-05-08 | 2024-06-04 | 湖南工程学院 | Cast iron pipe with stainless steel lining and welding device |
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- 2023-12-25 CN CN202311804521.8A patent/CN117588612A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118128982A (en) * | 2024-05-08 | 2024-06-04 | 湖南工程学院 | Cast iron pipe with stainless steel lining and welding device |
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