CN210935527U - Galvanized pipe sprays paint and uses preprocessing device - Google Patents
Galvanized pipe sprays paint and uses preprocessing device Download PDFInfo
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- CN210935527U CN210935527U CN201921515186.9U CN201921515186U CN210935527U CN 210935527 U CN210935527 U CN 210935527U CN 201921515186 U CN201921515186 U CN 201921515186U CN 210935527 U CN210935527 U CN 210935527U
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Abstract
The utility model discloses a pretreatment device for paint spraying of galvanized pipes, which comprises a paint spraying workbench, the lower end of the paint spraying workbench is fixedly connected with a motor, the rotating end of the motor is fixedly connected with a main bevel gear, the middle of the paint spraying workbench is rotatably connected with two conveying main shafts, the lower end of the conveying main shaft is sleeved with a secondary bevel gear, the secondary bevel gear is fixedly connected with the conveying main shafts, the secondary bevel gear is meshed with the main bevel gear, the conveying main shafts are sleeved with conveying rollers, the conveying rollers are fixedly connected with the conveying main shafts, the galvanized pipes are arranged between the two conveying rollers, the upper end of the paint spraying workbench is fixedly connected with a paint spraying mechanism, the left end of the galvanized pipe runs through the paint spraying mechanism, when the galvanized pipes are transmitted and rotated in the two conveying rollers, the cleaning brush rollers on the rotating shaft reversely rotate, the outer surface impurities adhered on the galvanized pipes are cleaned, and the influence of the water, the sticking effect of the spray paint on the outer surface of the galvanized pipe is improved.
Description
Technical Field
The utility model relates to a galvanized pipe production technical field especially relates to a galvanized pipe sprays paint and uses preprocessing device.
Background
The galvanized pipe, also known as galvanized steel pipe, is divided into hot galvanizing and electrogalvanizing, and the hot galvanizing is thick, and has the advantages of uniform coating, strong adhesive force, long service life and the like. The galvanized steel pipe is widely applied to the manufacturing industries of buildings, machinery, coal mines, chemical industry, electric power, railway vehicles, automobile industry, roads, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and the like due to the corrosion resistance, and the conventional galvanized pipe is inconvenient to sleeve and paint the outer surface of the galvanized pipe.
In order to solve the problems, the Chinese patent with the patent publication number of CN205949138U provides a sleeving device for spraying paint on a galvanized pipe, which comprises a fixing plate, wherein a fixing box is arranged at the outer side wall of the fixing plate, a sleeving frame is arranged on the fixing plate, and the sleeving frame is connected with the fixing box; a first clamping plate is arranged on one side of the fixing plate, a first clamping groove is formed in the end part of the first clamping plate, a second clamping plate is arranged on the other side of the fixing plate, and a second clamping groove is formed in the end part of the second clamping plate; the second clamping groove corresponds to the first clamping groove, a positioning shaft is arranged between the second clamping groove and the first clamping groove, one side of the fixing plate is connected with the buckling shell, the lower portion of the buckling shell is provided with a buckling groove, a clamping groove is arranged between the buckling shell and the fixing plate, the second clamping plate is arranged on the clamping groove, the other side of the fixing plate is provided with a clamping groove, and the first clamping plate is arranged in the clamping groove. The utility model discloses can be with pending galvanized pipe suit on the outer peripheral face of location axle to the convenience carries out the suit to the galvanized pipe, makes things convenient for the galvanized pipe surface to spray paint the use.
Above-mentioned technical scheme is being applied to the processing of spraying paint of galvanized pipe, because last process is that galvanized steel scrapes the scar and handles, consequently easily remains dust and water stain on the galvanized pipe, and this part impurity laminating is in the galvanized pipe skin, makes the unable inseparable surface that covers in the galvanized pipe surface of spraying paint layer, after solidifying the design, drops easily to make the effect of spraying paint worsen.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a galvanized pipe sprays paint and uses preprocessing device can treat the galvanized pipe surface impurity that sprays paint and clear up, reduces water stain dust and impurity to the influence of the effect of spraying paint, improves the attached effect of spraying paint to the galvanized steel pipe surface.
The utility model discloses a can realize through following technical scheme:
a pretreatment device for paint spraying of a galvanized pipe comprises a paint spraying workbench, wherein a motor is fixedly connected to the lower end of the paint spraying workbench, a main rotating bevel gear is fixedly connected to the rotating end of the motor, two conveying main shafts are rotatably connected to the middle of the paint spraying workbench, a driven rotating bevel gear is sleeved at the lower end of each conveying main shaft and is fixedly connected with the conveying main shafts, the driven rotating bevel gear is meshed with the main rotating bevel gear and is connected with the conveying main shafts, conveying rollers are sleeved on the conveying main shafts and are fixedly connected with the conveying main shafts, a galvanized pipe is arranged between the two conveying rollers, a paint spraying mechanism is fixedly connected to the upper end of the paint spraying workbench, the left end of the galvanized pipe penetrates through the paint spraying mechanism, a first gear is sleeved at one end, close to the driven rotating bevel gear, of each conveying main shaft, the first gear is fixedly connected with the conveying main shafts, the paint spraying device is characterized in that two cleaning rotating holes are formed in the paint spraying workbench, the rotating shaft rod penetrates through the cleaning rotating holes to be connected with the paint spraying workbench in a rotating mode, the rotating shaft rod is sleeved with a cleaning brush roll and is fixedly connected with the rotating shaft rod, a second gear is fixedly connected to the lower end of the rotating shaft rod and is meshed with the first gear, a filtering box is arranged on the right side of the rotating shaft rod, and the lower end of the filtering box is fixedly connected with the paint spraying workbench.
Through adopting above-mentioned technical scheme, when making galvanized pipe transmit in two conveying rollers and rotate, the reverse rotation of the clean brush roll on the pivot pole is cleared up the surface impurity of adhesion on the galvanized pipe, reduces the influence of the water stain of adhesion and impurity on the galvanized pipe to the effect of spraying paint, improves the effect of pasting to the galvanized pipe surface of spraying paint.
Further setting the following steps: the device comprises a rotating shaft rod, a conveying main shaft, a galvanized pipe, a sliding pipe fixed ring and a conveying main shaft, wherein the sliding pipe fixed ring is arranged between the rotating shaft rod and the conveying main shaft, the sliding pipe fixed ring is sleeved with the galvanized pipe, the galvanized pipe is connected with the sliding pipe fixed ring in a sliding mode, the lower end of the.
Through adopting above-mentioned technical scheme, the slip pipe stationary ring that adds between pivot pole and transport main shaft is convenient for make the slip pipe stationary ring strike off the impurity of galvanized pipe surface, reduces the clean brush roll and strikes off the omission of impurity in-process, improves the clean effect of clean brush roll.
Further setting the following steps: two side rotating holes are formed in the middle of the paint spraying workbench, the conveying main shaft is located in the side rotating holes, and the conveying main shaft penetrates through the side rotating holes to be rotatably connected with the paint spraying workbench.
Through adopting above-mentioned technical scheme, make and carry the main shaft to run through the side and change the hole and rotate with the workstation that sprays paint and be connected, be convenient for make the conveying roller and carry the main shaft to rotate on the workstation that sprays paint to the galvanized pipe is transmitted via the drive from changeing bevel gear.
Further setting the following steps: the two conveying main shafts and the rotating shaft rod are symmetrically arranged on the front side and the rear side of the galvanized pipe, and the cleaning brush roller on the rotating shaft rod and the conveying roller on the conveying main shafts are attached to the outer surface of the galvanized pipe to rotate.
Through adopting above-mentioned technical scheme, make and carry main shaft and pivot pole all bilateral symmetry around the galvanized pipe and set up, be convenient for make and carry main shaft and conveying roller to rotate the galvanized pipe and carry, the epaxial cleaning brush roller reverse rotation of pivot is cleaned the galvanized pipe surface.
Further setting the following steps: the device is characterized in that a circular doctor blade is arranged in the sliding tube fixed ring, the circular doctor blade is sleeved with the galvanized tube, the outer ring of the circular doctor blade is fixedly connected with the inner wall of the sliding tube fixed ring, and the circular doctor blade is connected with the galvanized tube in a sliding mode.
Through adopting above-mentioned technical scheme, the circular doctor-bar of addding in the slide pipe stationary ring is convenient for make circular doctor-bar reinforcing slide pipe stationary ring to the effect of striking off of impurity on the galvanized pipe, reduces the influence of debris such as water stain to the effect of spraying paint.
Further setting the following steps: the left end of the impurity filtering box is fixedly connected with a metal filter screen, and the metal filter screen is tightly attached to the right end of the cleaning brush roll.
Through adopting above-mentioned technical scheme, the metal filter screen of fixed connection on straining miscellaneous case is convenient for make the metal filter screen clean the clean brush roll after rotating, reduces the remaining impurity of adhesion on the clean brush roll, keeps the clean effect of clean brush roll to the galvanized pipe.
Further setting the following steps: the cleaning rotary hole is internally provided with a ball bearing, the inner end of the ball bearing is fixedly connected with the rotary shaft rod, the outer end of the ball bearing is fixedly connected with the inner wall of the cleaning rotary hole, and the rotary shaft rod is rotatably connected with the paint spraying workbench through the ball bearing.
Through adopting above-mentioned technical scheme, make the pivot pole pass through ball bearing and the workstation rotation connection that sprays paint, be convenient for reduce the resistance of pivot pole when rotating on the workstation that sprays paint.
To sum up, the utility model discloses a beneficial technological effect does:
the utility model discloses when the motor drives two main bevel gear rotations, make two conveying rollers drive the galvanized pipe and remove, the reverse rotation of clean brush roll on the pivot pole simultaneously, to the outer surface impurity of adhesion on the galvanized pipe clear up, the conveying roller of being convenient for gets into the processing of spraying paint in the mechanism that sprays paint, reduces the influence of the water stain and the impurity of adhesion to the effect of spraying paint on the galvanized pipe, improves and sprays paint and pay the effect to the subsides of galvanized pipe surface.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
fig. 3 is a front view of the present invention;
fig. 4 is a plan view of the present invention.
Reference numerals: 1. a paint spraying workbench; 2. a motor; 3. a main bevel gear; 4. a driven bevel gear; 5. a conveying main shaft; 6. a conveying roller; 7. galvanizing the pipe; 8. a paint spraying mechanism; 9. a spindle rod; 10. a second gear; 11. cleaning the brush roll; 12. a first gear; 13. a impurity filtering box; 14. a metal screen; 15. an auxiliary extension rod; 16. a sliding pipe fixed ring; 17. a circular wiper blade; 18. ball bearings.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the scope of the invention.
Referring to fig. 1, the pretreatment device for painting a galvanized pipe, which is disclosed by the utility model, comprises a paint spraying workbench 1, wherein the lower end of the paint spraying workbench 1 is fixedly connected with a motor 2, the rotating end of the motor 2 is fixedly connected with a main bevel gear 3, the middle of the paint spraying workbench 1 is rotatably connected with two conveying main shafts 5, the lower ends of the conveying main shafts 5 are sleeved with a secondary bevel gear 4, the secondary bevel gear 4 is fixedly connected with the conveying main shafts 5, the secondary bevel gear 4 is meshed with the main bevel gear 3, the conveying main shafts 5 are sleeved with conveying rollers 6, the conveying rollers 6 are fixedly connected with the conveying main shafts 5, a galvanized pipe 7 is arranged between the two conveying rollers 6, the upper end of the paint spraying workbench 1 is fixedly connected with a paint spraying mechanism 8, the left end of the galvanized pipe 7 penetrates through the paint spraying mechanism 8, one end of the conveying main shaft 5, which is close to the secondary bevel gear 4, carry 5 right sides of main shaft to be equipped with pivot pole 9, it changes the hole to have seted up two cleanness on the workstation of spraying paint 1, pivot pole 9 runs through cleanness and changes the hole and rotate with the workstation of spraying paint 1 and be connected, pivot pole 9 is last to have cup jointed clean brush roll 11, and clean brush roll 11 and pivot pole 9 fixed connection, pivot pole 9 lower extreme fixedly connected with second gear 10, second gear 10 is connected with the meshing of first gear 12, pivot pole 9 right side is equipped with strains miscellaneous case 13, strain miscellaneous case 13 lower extreme and the workstation of spraying paint 1 fixed connection, make galvanized pipe 7 when the transmission rotates in two conveying rollers 6, clean brush roll 11 reverse rotation on the pivot pole 9, the surface impurity to the adhesion on the galvanized pipe 7 clears up, reduce the influence of the water stain and impurity of adhesion on the galvanized pipe 7 to the effect of spraying paint, improve the effect of paying of spraying paint to the outer surface of galvanized pipe 7.
Referring to fig. 2, further, a sliding tube fixed ring 16 is arranged between the rotating shaft rod 9 and the conveying main shaft 5, the sliding tube fixed ring 16 is sleeved with the galvanized tube 7, the galvanized tube 7 is slidably connected with the sliding tube fixed ring 16, an auxiliary extension rod 15 is fixedly connected to the lower end of the sliding tube fixed ring 16, the sliding tube fixed ring 16 is fixedly connected with the paint spraying workbench 1 through the auxiliary extension rod 15, and the sliding tube fixed ring 16 additionally arranged between the rotating shaft rod 9 and the conveying main shaft 5 facilitates scraping of impurities on the outer surface of the galvanized tube 7 by the sliding tube fixed ring 16, reduces omission in the process of scraping the impurities by the cleaning brush roller 11, and improves the cleaning effect of the cleaning brush roller 11.
Specifically, two side-turning holes have been seted up in the middle of paint spraying workbench 1, and it is downthehole to carry main shaft 5 to be located the side-turning, carries main shaft 5 to run through the side-turning hole and rotate with paint spraying workbench 1 and be connected, makes and carries main shaft 5 to run through the side-turning hole and rotate with paint spraying workbench 1 and be connected, is convenient for make conveying roller 6 and carry main shaft 5 to rotate on paint spraying workbench 1 to the via from the drive of changeing bevel gear 4 to transmit galvanized pipe 7.
Specifically, two conveying main shafts 5 and a rotating shaft rod 9 are symmetrically arranged on the front side and the rear side of a galvanized pipe 7, a cleaning brush roller 11 on the rotating shaft rod 9 and a conveying roller 6 on the conveying main shaft 5 are attached to the outer surface of the galvanized pipe 7 to rotate, the conveying main shafts 5 and the rotating shaft rod 9 are symmetrically arranged on the front side and the rear side of the galvanized pipe 7, the conveying main shafts 5 and the conveying rollers 6 are convenient to rotate and convey the galvanized pipe 7, and the cleaning brush roller 11 on the rotating shaft rod 9 rotates reversely to clean the outer surface of the galvanized pipe 7.
Referring to fig. 2, specifically, a circular wiper blade 17 is disposed in the sliding tube fixed ring 16, the circular wiper blade 17 is sleeved with the galvanized tube 7, an outer ring of the circular wiper blade 17 is fixedly connected with an inner wall of the sliding tube fixed ring 16, the circular wiper blade 17 is slidably connected with the galvanized tube 7, and the circular wiper blade 17 is additionally disposed in the sliding tube fixed ring 16, so that the circular wiper blade 17 enhances a wiping effect of the sliding tube fixed ring 16 on impurities on the galvanized tube 7, and reduces an influence of impurities such as water stains on a paint spraying effect.
Referring to fig. 1, specifically, a metal filter screen 14 is fixedly connected to the left end of the impurity filtering box 13, the metal filter screen 14 is tightly attached to the right end of the cleaning brush roll 11, and the metal filter screen 14 fixedly connected to the impurity filtering box 13 facilitates cleaning of the rotating cleaning brush roll 11 by the metal filter screen 14, reduces residual impurities adhered to the cleaning brush roll 11, and maintains the cleaning effect of the cleaning brush roll 11 on the galvanized pipe 7.
Referring to fig. 1, further, a ball bearing 18 is disposed in the cleaning rotary hole, an inner end of the ball bearing 18 is fixedly connected to the rotary shaft rod 9, an outer end of the ball bearing 18 is fixedly connected to an inner wall of the cleaning rotary hole, and the rotary shaft rod 9 is rotatably connected to the paint spraying table 1 through the ball bearing 18, so that the rotary shaft rod 9 is rotatably connected to the paint spraying table 1 through the ball bearing 18, and resistance of the rotary shaft rod 9 in rotation on the paint spraying table 1 is reduced.
When the galvanized pipe 7 needs to be painted, the motor 2 is started, the motor 2 drives the main bevel gear 3 to rotate, thereby driving the secondary bevel gear 4 which is meshed and connected with the primary bevel gear 3 to rotate, the conveying main shaft 5 and the conveying roller 6 on the secondary bevel gear 4 synchronously rotate, and under the rotation of the first gear 12 on the conveying main shaft 5, the second gear 10 engaged with the first gear 12 rotates reversely, the second gear 10 rotates to drive the rotating shaft rod 9 and the cleaning brush roller 11 to rotate, so that the cleaning brush roller 11 cleans the outer surface of the galvanized pipe 7, and when the cleaning brush roller 11 rotates to the impurity filtering box 13, the impurity filtering box 13 cleans impurities adhered on the cleaning brush roller 11, so that the cleaning brush roller 11 continuously cleans the galvanized pipe 7, thereby reducing the influence of water stain and impurities adhered on the galvanized pipe 7 on the paint spraying effect and improving the attaching effect of the paint spraying on the outer surface of the galvanized pipe 7.
The above, only do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a galvanized pipe sprays paint and uses preprocessing device which characterized in that: the paint spraying device comprises a paint spraying workbench (1), wherein a motor (2) is fixedly connected to the lower end of the paint spraying workbench (1), a main rotary bevel gear (3) is fixedly connected to the rotary end of the motor (2), two conveying main shafts (5) are rotatably connected to the middle of the paint spraying workbench (1), a driven rotary bevel gear (4) is sleeved at the lower end of each conveying main shaft (5), the driven rotary bevel gear (4) is fixedly connected with the conveying main shafts (5), the driven rotary bevel gear (4) is meshed with the main rotary bevel gear (3) and is connected with the conveying main shafts (5), conveying rollers (6) are sleeved on the conveying main shafts (5), a galvanized pipe (7) is arranged between the two conveying rollers (6), a paint spraying mechanism (8) is fixedly connected to the upper end of the paint spraying workbench (1), and the paint spraying mechanism (8) penetrates through the left end of each galvanized pipe (7), the conveying main shaft (5) is close to one end of the secondary bevel gear (4) and is sleeved with a first gear (12), the first gear (12) is fixedly connected with the conveying main shaft (5), a rotating shaft rod (9) is arranged on the right side of the conveying main shaft (5), two cleaning rotating holes are formed in the paint spraying workbench (1), the rotating shaft rod (9) penetrates through the cleaning rotating holes to be rotatably connected with the paint spraying workbench (1), a cleaning brush roll (11) is sleeved on the rotating shaft rod (9), the cleaning brush roll (11) is fixedly connected with the rotating shaft rod (9), a second gear (10) is fixedly connected with the lower end of the rotating shaft rod (9), the second gear (10) is meshed with the first gear (12), a filtering impurity box (13) is arranged on the right side of the rotating shaft rod (9), and the lower end of the filtering impurity box (13) is fixedly connected with the paint spraying workbench (1).
2. The pretreatment device for paint spraying of the galvanized pipe according to claim 1, wherein: a sliding tube fixed ring (16) is arranged between the rotating shaft rod (9) and the conveying main shaft (5), the sliding tube fixed ring (16) is sleeved with a galvanized tube (7), the galvanized tube (7) is slidably connected with the sliding tube fixed ring (16), the lower end of the sliding tube fixed ring (16) is fixedly connected with an auxiliary extension rod (15), and the sliding tube fixed ring (16) is fixedly connected with the paint spraying workbench (1) through the auxiliary extension rod (15).
3. The pretreatment device for paint spraying of the galvanized pipe according to claim 1, wherein: two side rotating holes are formed in the middle of the paint spraying workbench (1), the conveying main shaft (5) is located in the side rotating holes, and the conveying main shaft (5) penetrates through the side rotating holes to be rotatably connected with the paint spraying workbench (1).
4. The pretreatment device for paint spraying of the galvanized pipe according to claim 1, wherein: the two conveying main shafts (5) and the rotating shaft rod (9) are symmetrically arranged on the front side and the rear side of the galvanized pipe (7), and the cleaning brush roller (11) on the rotating shaft rod (9) and the conveying roller (6) on the conveying main shafts (5) are attached to the outer surface of the galvanized pipe (7) to rotate.
5. The pretreatment device for paint spraying of the galvanized pipe as claimed in claim 2, wherein: the novel galvanized pipe is characterized in that a circular scraping blade (17) is arranged in the sliding pipe fixed ring (16), the circular scraping blade (17) is sleeved with the galvanized pipe (7), the outer ring of the circular scraping blade (17) is fixedly connected with the inner wall of the sliding pipe fixed ring (16), and the circular scraping blade (17) is connected with the galvanized pipe (7) in a sliding mode.
6. The pretreatment device for paint spraying of the galvanized pipe according to claim 1, wherein: strain miscellaneous case (13) left end fixedly connected with metal filter screen (14), metal filter screen (14) closely laminate with cleaning brush roll (11) right-hand member.
7. The pretreatment device for paint spraying of the galvanized pipe according to claim 1, wherein: the cleaning rotary hole is internally provided with a ball bearing (18), the inner end of the ball bearing (18) is fixedly connected with the rotary shaft rod (9), the outer end of the ball bearing (18) is fixedly connected with the inner wall of the cleaning rotary hole, and the rotary shaft rod (9) is rotatably connected with the paint spraying workbench (1) through the ball bearing (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515186.9U CN210935527U (en) | 2019-09-12 | 2019-09-12 | Galvanized pipe sprays paint and uses preprocessing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515186.9U CN210935527U (en) | 2019-09-12 | 2019-09-12 | Galvanized pipe sprays paint and uses preprocessing device |
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| Publication Number | Publication Date |
|---|---|
| CN210935527U true CN210935527U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921515186.9U Active CN210935527U (en) | 2019-09-12 | 2019-09-12 | Galvanized pipe sprays paint and uses preprocessing device |
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| CN (1) | CN210935527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642660A (en) * | 2021-01-04 | 2021-04-13 | 马鞍山嘉力机械制造有限公司 | Surface rust prevention treatment equipment for air pipe production |
| CN112658396A (en) * | 2020-12-07 | 2021-04-16 | 天津市金德泓焊材有限公司 | Improve core wire edging equipment of coating adhesion effect that condenses |
-
2019
- 2019-09-12 CN CN201921515186.9U patent/CN210935527U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658396A (en) * | 2020-12-07 | 2021-04-16 | 天津市金德泓焊材有限公司 | Improve core wire edging equipment of coating adhesion effect that condenses |
| CN112658396B (en) * | 2020-12-07 | 2024-05-24 | 天津市金德泓焊材有限公司 | Core wire edging equipment for improving condensation and adhesion effects of coating |
| CN112642660A (en) * | 2021-01-04 | 2021-04-13 | 马鞍山嘉力机械制造有限公司 | Surface rust prevention treatment equipment for air pipe production |
| CN112642660B (en) * | 2021-01-04 | 2023-12-22 | 马鞍山嘉力机械制造有限公司 | Surface rust-proof treatment equipment for air pipe production |
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