CN103706667B - In a kind of hot extrusion technique, high temperature blank removes the device of surface oxide layer - Google Patents
In a kind of hot extrusion technique, high temperature blank removes the device of surface oxide layer Download PDFInfo
- Publication number
- CN103706667B CN103706667B CN201310708918.7A CN201310708918A CN103706667B CN 103706667 B CN103706667 B CN 103706667B CN 201310708918 A CN201310708918 A CN 201310708918A CN 103706667 B CN103706667 B CN 103706667B
- Authority
- CN
- China
- Prior art keywords
- oxide layer
- high temperature
- hydraulic cylinder
- temperature blank
- cylinder
- 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.)
- Active
Links
- 238000001192 hot extrusion Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
In hot extrusion technique, high temperature blank removes a device for surface oxide layer, and it comprises high temperature blank feed mechanism and end face removes oxide layer mechanism, and described high temperature blank feed mechanism loads pending high temperature blank; Described end face removes the left and right sides that oxide layer mechanism is located at high temperature blank feed mechanism, and it comprises horizontal sliding pair, the first kicker cylinder, the first hydraulic cylinder, gripper shoe, connecting plate and support; Described horizontal sliding pair is connected by the piston rod of connecting plate with the first hydraulic cylinder; First drive motors drives the first kicker cylinder of gripper shoe supporting to rotate, the many groups of impact chains that fixed intervals are uniform on the roll surface of the first kicker cylinder.The present invention has the stability that structure is simple, removing oxide layer even and effectively improve seamless steel pipe product quality, is applicable in the production line of any seamless steel pipe removing oxide layer.
Description
Technical field
The present invention relates to a kind of device removing oxide layer, particularly a kind of device removing surface oxide layer for the high-temperature metal blank in seamless steel pipe hot extrusion technique, belongs to metal working technical area.
Background technology
Growing along with seamless steel pipe technology, its manufacturing machine is also in continuous progress.In known seamless steel pipe hot extrusion technique, blank need be heated to 1200 DEG C, then again extrusion operation be carried out to high temperature blank.In the process, after high temperature blank at high temperature contacts with air, its surface can produce rapidly oxide layer (be commonly called as in industry oxide layer for ' scale '), so Product processing can be affected and shaping after surface quality.In existing production technology, the equipment removing high temperature blank oxide layer mainly adopts machinery drum scraper type removing oxide layer equipment, because limit by its structure, the inside and outside wall removing oxide layer of high temperature blank is uneven, time-consuming, and, not being suitable for the removing oxide layer operation of hot extrusion heavy caliber seamless steel pipe high temperature blank, to making hot extruded seamless tube product quality unstable, even occurring the underproof result of product yet.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, high temperature blank in a kind of hot extrusion technique is provided to remove the device of surface oxide layer, it has, and structure is simple, removing oxide layer even, can remove the oxide layer of seamless steel pipe high temperature blank end face, also can remove the oxide layer of inner and outer wall.
Problem of the present invention is solved by following technical scheme:
In hot extrusion technique, high temperature blank removes a device for surface oxide layer, and it comprises high temperature blank feed mechanism and end face removes oxide layer mechanism, and described high temperature blank feed mechanism loads pending high temperature blank; Described end face removes the left and right sides that oxide layer mechanism is located at high temperature blank feed mechanism; Described end face is removed oxide layer mechanism and is comprised horizontal sliding pair, the first kicker cylinder, the first hydraulic cylinder, gripper shoe, connecting plate and support; Described horizontal sliding pair is fixed on support, and gripper shoe is fixed on horizontal sliding pair; Described horizontal sliding pair comprises again slide plate and slide rail, the affixed connecting plate in described slide plate bottom surface, and described connecting plate is connected with the piston rod of the first hydraulic cylinder; Described gripper shoe and the first drive motors are fixed on slide plate, and described gripper shoe supports the first kicker cylinder, and the first kicker cylinder is driven by the first drive motors by belt pulley, the many groups of impact chains that fixed intervals are uniform on the roll surface of the first kicker cylinder.
In above-mentioned hot extrusion technique, high temperature blank removes the device of surface oxide layer, and described high temperature blank feed mechanism comprises roller, turning rolls, power transmission shaft, the second hydraulic cylinder, the second drive motors, joint, road wheel and chute; Described road wheel is located on turning rolls respectively, and each roller is connected by belt transmission with power transmission shaft respectively; One end second drive motors driven rotary of described power transmission shaft; Described road wheel is located at the bottom of turning rolls, walking that the chute matched with it slides; The piston rod of described second hydraulic cylinder is connected with turning rolls by the joint on turning rolls.
In above-mentioned hot extrusion technique, high temperature blank removes the device of surface oxide layer, set up inwall and remove oxide layer mechanism, described inwall is removed oxide layer mechanism and is comprised the 3rd drive motors, the 3rd hydraulic cylinder, the 4th hydraulic cylinder, the second kicker cylinder, the second kicker cylinder tail spindle, left guide type shoe, right guide type shoe and horizontal sliding mechanism; Described 3rd hydraulic cylinder is vertically fixed on left guide type shoe, and its piston rod is fixed with the first guide plate of carrying the 3rd drive motors, and described second kicker cylinder is driven by the 3rd drive motors and rotates; Described second kicker cylinder is hollow structure, and its roller wall is provided with multiple hole for water spraying, and on the roller surface of described second kicker cylinder, interval is fixed with many group impact chains; Described right guide type shoe is vertically provided with the 4th hydraulic cylinder, its piston rod is fixed with the second guide plate carrying the second kicker cylinder tail spindle; Described horizontal sliding mechanism is located at the bottom of left guide type shoe, drives left guide type shoe to move left and right.
In above-mentioned hot extrusion technique, high temperature blank removes the device of surface oxide layer, and described horizontal sliding mechanism comprises the 5th hydraulic cylinder, the horizontal sliding axis of guide, sliding sleeve and limited block; Described left guide type shoe is socketed on the horizontal sliding axis of guide by the sliding sleeve being fixed on bottom; The piston rod of described 5th hydraulic cylinder is connected with sliding sleeve; Described limited block is located at two ends, horizontal sliding axis of guide left and right.
In above-mentioned hot extrusion technique, high temperature blank removes the device of surface oxide layer, sets up outer wall and removes oxide layer mechanism, and described outer wall is removed oxide layer mechanism and comprised the 3rd kicker cylinder, four-wheel drive motor, the 6th hydraulic cylinder and the 7th hydraulic cylinder; The two ends of described 3rd kicker cylinder are fixed on by axle sleeve on the piston rod of the 6th hydraulic cylinder and the 7th hydraulic cylinder, and the 3rd kicker cylinder is driven by four-wheel drive motor; The fixing many group impact chains in interval on the roll surface of described 3rd kicker cylinder.
In above-mentioned hot extrusion technique, high temperature blank removes the device of surface oxide layer, and set up spray cooling mechanism, described spray cooling mechanism comprises water tank and water pump, and described water tank is through the inner space of water pump and the second kicker cylinder.
In above-mentioned hot extrusion technique, high temperature blank removes the device of surface oxide layer, and set up impact chain fixed head, described impact chain fixed head is elongate configuration, and described impact chain is articulated on impact chain fixed head.
The present invention removes oxide layer mechanism by end face, outer wall removes oxide layer mechanism and inwall removes oxide layer mechanism, effectively can remove the oxide layer that seamless steel pipe high temperature blank produces in hot extrusion process, because contacting with air.The present invention relies on high temperature blank feed mechanism to be progressively transported to by high temperature blank in each removing oxide layer mechanism, rely on the oxide layer on end face removing oxide layer mechanism removal high temperature blank two end faces, rely on inwall to remove the oxide layer of oxide layer mechanism removal high temperature blank inwall, rely on outer wall removing oxide layer mechanism to remove the oxide layer of high temperature blank outer surface.In addition, the many groups of impact chains that the present invention's fixed intervals on the first kicker cylinder, the second kicker cylinder and the 3rd kicker cylinder are uniform, when impacting chain and rotating and knock on seamless steel pipe high temperature blank, the flexibility utilizing the rigid impact of impact chain and chain to have concurrently, can reach the effect of scale removal comprehensively and up hill and dale.The present invention has that structure is simple, simple operation, the uniform feature of removing oxide layer, and effectively can improve the stability of seamless steel pipe product quality, be applicable to the production occasion removing high temperature blank oxide layer in any hot extrusion technique.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is K direction view;
Fig. 4 is the left view of high temperature blank feed mechanism.
In figure, each list of reference numerals is: 1. inwall removes oxide layer mechanism, 2. outer wall removes oxide layer mechanism, 3. end face removes oxide layer mechanism, 4. high temperature blank feed mechanism, 5. support, 6. gripper shoe, 7. connecting plate, 8-1. first kicker cylinder, 8-2. second kicker cylinder, 8-3. the 3rd kicker cylinder, 9-1 ~ 9-7. first hydraulic cylinder ~ the 7th hydraulic cylinder, 10. impact chain fixed head, 11. impact chains, 12. slide plates, 13. slide rails, 14-1 ~ 14-4. first drive motors ~ the four-wheel drive motor, 15. rollers, 16. turning rolls, 17. power transmission shafts, 18. road wheels, 19. chutes, 20. left guide type shoes, 21. right guide type shoes, 22, the horizontal sliding axis of guide, 23. sliding sleeves, 24. limited blocks, 25. balancing pull rods, 26. second kicker cylinder tail spindles, 27-1. the first guide plate, 27-2. the second guide plate, 28. water tanks, 29. water pumps, 30. joints, 31. conveyer belts, 32. high temperature blanks, 33. hole for water sprayings.
Detailed description of the invention
Referring to Fig. 1,2,3 and Fig. 4, the present invention removes oxide layer mechanism 3 by end face, outer wall removes oxide layer mechanism 2 and inwall is removed oxide layer mechanism 1 and formed; Wherein, end face removing oxide layer mechanism 3 comprises horizontal sliding pair, the first kicker cylinder, the first drive motors, gripper shoe and support; Described support 5 is provided with horizontal sliding pair, the first kicker cylinder and gripper shoe; Described horizontal sliding pair utilizes the first hydraulic cylinder 9-1, make end face remove oxide layer mechanism to realize moving left and right, namely the effect of the seamless steel pipe high temperature blank mating any length is reached, described first hydraulic cylinder 9-1 and slide rail 13 are all fixed on support 5, the piston rod of described first hydraulic cylinder 9-1 is connected with slide plate 12 by connecting plate 7, and the both sides of described slide rail and slide plate both sides are that dovetail type is slidably connected.Described slide plate upper end is fixed with gripper shoe, and described gripper shoe supports the first kicker cylinder 8-1, and the first kicker cylinder 8-1 is driven by the first drive motors 14-1, the uniform many group impact chains of fixed intervals on the roll surface of the first kicker cylinder.First kicker cylinder, under the driving of the first drive motors, makes impact chain rotate and knocks on the surface of seamless steel pipe high temperature blank, utilizes the flexibility that rigidity during impact chain shock end face has concurrently with impact chain, thus improves the effect removing oxide layer.
Inwall is removed oxide layer mechanism 1 and is comprised the 3rd drive motors 14-3, the 3rd hydraulic cylinder 9-3, the 4th hydraulic cylinder 9-4, the second kicker cylinder 8-2, the second kicker cylinder tail spindle 26, left guide type shoe 20, right guide type shoe 21 and horizontal sliding mechanism; Inwall removes oxide layer mechanism 1 by the 3rd hydraulic cylinder 9-3 and the 4th hydraulic cylinder 9-4, realize the height adjustment that inwall removes oxide layer mechanism 1, the seamless steel pipe high temperature blank inwall removing oxide layer work of multiple diameter can be applicable to after adjustment, the right position of horizontal sliding mechanism then for regulating inwall to remove oxide layer mechanism 1, is convenient to connect with the second kicker cylinder tail spindle 26 from the annulus of high temperature blank through rear.Identical with the first kicker cylinder on described second kicker cylinder outer wall, equal irregular spacing is provided with many group impact chains 11, is convenient to the oxide layer of the removal inwall of efficient quick.Described horizontal sliding mechanism is located at the bottom of left guide type shoe 20, and described second kicker cylinder 8-2 outer surface is provided with impact chain fixed head 10.Described sliding motion unit comprises the 5th hydraulic cylinder 9-5, the horizontal sliding axis of guide 22, sliding sleeve 23 and limited block 24; Described sliding sleeve 23 is fixed on the bottom of left guide type shoe 20, and is socketed on the horizontal sliding axis of guide 22; The piston rod of described 5th hydraulic cylinder 9-5 is connected with sliding sleeve 23; Described limited block 24 is located at the two ends, left and right of the horizontal sliding axis of guide 22, and anti-anti-skid sheath 23 exceeds sliding scale.
Outer wall is removed oxide layer mechanism and is comprised the 3rd kicker cylinder 8-3, balancing pull rod 25, four-wheel drive motor 14-4, the 6th hydraulic cylinder 9-6 and the 7th hydraulic cylinder 9-7; Described outer wall is removed oxide layer mechanism and is comprised the 3rd kicker cylinder, balancing pull rod, four-wheel drive motor, the 6th hydraulic cylinder and the 7th hydraulic cylinder; The two ends of described 3rd kicker cylinder are fixed on the piston rod of the 6th, the 7th hydraulic pressure by axle sleeve, and one end is connected with four-wheel drive motor-driven; The uniform many group impact chains of fixed intervals on the roll surface of described 3rd kicker cylinder; Described balancing pull rod 25 two ends are connected with the 6th hydraulic cylinder 9-6 and the 7th hydraulic cylinder 9-7 respectively, prevent situation about misplacing from occurring.
High temperature blank feed mechanism 4 comprises roller 15, turning rolls 16, power transmission shaft 17, second hydraulic cylinder 9-2, the second drive motors 14-2, joint 30, road wheel 18 and chute 19; Described road wheel 18 is located on turning rolls 16 respectively, and each roller 15 is in transmission connection with power transmission shaft 17 respectively; One end of described power transmission shaft 17 is by the second drive motors 14-2 driven rotary; After high temperature blank 32 is placed on roller 15, rotate along with the rotation of roller 15, make the outer surface removing oxide layer of high temperature blank 32 evenly.Described road wheel 18 is located at the bottom of turning rolls 16, is its chute 19 matched slides, and the piston rod of described second hydraulic cylinder 9-2 is connected with turning rolls 16 by joint 30, makes it that high temperature blank 32 is transported to each mechanism, carries out removing oxide layer work.
The present invention in use, first the high temperature blank of seamless steel pipe is positioned on high temperature blank 32 feed mechanism by manipulator, in the transport of high temperature blank feed mechanism, remove oxide layer mechanism 3 by end face successively, outer wall removes oxide layer mechanism 2 and inwall removes oxide layer mechanism 1, carry out removing oxide layer work, each mechanism of the present invention can regulate according to the size of high temperature blank, makes it applied widely, facilitation more, has met the nowadays theory of quick production and construction.In addition, the present invention has also set up spray cooling mechanism, by utilizing water tank and water pump, water is injected in the second kicker cylinder, be ejected into by the hole for water spraying on the second kicker cylinder in the inwall of high temperature blank, by low temperature Quench oxide skin, by the impulsive force of water, oxide skin removed simultaneously.The removing oxide layer of such steel billet inwall uses the impact of High Rotation Speed chain than simple, removes more thorough.
Hydraulic cylinder of the present invention is the hydraulic cylinder of UY type hydraulic cylinder or CD250 series.
Claims (7)
1. in a hot extrusion technique, high temperature blank removes the device of surface oxide layer, it is characterized in that: it comprises high temperature blank feed mechanism (4) and end face removes oxide layer mechanism (3), and described high temperature blank feed mechanism loads pending high temperature blank (32); Described end face removes the left and right sides that oxide layer mechanism (3) is located at high temperature blank feed mechanism (4); Described end face is removed oxide layer mechanism (3) and is comprised horizontal sliding pair, the first kicker cylinder (8-1), the first hydraulic cylinder (9-1), gripper shoe (6), connecting plate (7) and support (5); Described horizontal sliding pair is fixed on support (5), and gripper shoe (6) is fixed on horizontal sliding pair; Described horizontal sliding pair comprises again slide plate (12) and slide rail (13), the affixed connecting plate in described slide plate (12) bottom surface (7), described connecting plate (7) is connected with the piston rod of the first hydraulic cylinder (9-1); Described gripper shoe (6) and the first drive motors (14-1) are fixed on slide plate (12), described gripper shoe (6) supports the first kicker cylinder (8-1), first kicker cylinder (8-1) is driven by the first drive motors (14-1) by belt pulley, many groups of impacts chain (11) that fixed intervals are uniform on the roll surface of the first kicker cylinder (8-1).
2. high temperature blank removes the device of surface oxide layer in hot extrusion technique according to claim 1, it is characterized in that: described high temperature blank feed mechanism (4) comprises roller (15), turning rolls (16), power transmission shaft (17), the second hydraulic cylinder (9-2), the second drive motors (14-2), joint (30), road wheel (18) and chute (19); Described road wheel (18) is located on turning rolls (16) respectively, and each roller (15) is connected by belt transmission with power transmission shaft (17) respectively; One end second drive motors (14-2) driven rotary of described power transmission shaft (17); Described road wheel (18) is located at the bottom of turning rolls (16), walking that the chute matched with it (19) slides; The piston rod of described second hydraulic cylinder (9-2) is connected with turning rolls (16) by the joint (30) on turning rolls (16).
3. in hot extrusion technique according to claim 1 or 2, high temperature blank removes the device of surface oxide layer, it is characterized in that: set up inwall and remove oxide layer mechanism (1), described inwall is removed oxide layer mechanism (1) and is comprised the 3rd drive motors (14-3), the 3rd hydraulic cylinder (9-3), the 4th hydraulic cylinder (9-4), the second kicker cylinder (8-2), the second kicker cylinder tail spindle (26), left guide type shoe (20), right guide type shoe (21) and horizontal sliding mechanism; Described 3rd hydraulic cylinder (9-3) is vertically fixed on left guide type shoe (20), its piston rod is fixed with first guide plate (27-1) of carrying the 3rd drive motors (14-3), and described second kicker cylinder (8-2) is driven by the 3rd drive motors (14-3) and rotates; Described second kicker cylinder (8-2) is hollow structure, and its roller wall is provided with multiple hole for water spraying (33), and on the roller surface of described second kicker cylinder (8-2), interval is fixed with many groups impact chain (11); Described right guide type shoe (21) is vertically provided with the 4th hydraulic cylinder (9-4), its piston rod is fixed with the second guide plate (27-2) carrying the second kicker cylinder tail spindle (26); Described horizontal sliding mechanism is located at the bottom of left guide type shoe (20), drives left guide type shoe (20) to move left and right.
4. high temperature blank removes the device of surface oxide layer in hot extrusion technique according to claim 3, it is characterized in that: described horizontal sliding mechanism comprises the 5th hydraulic cylinder (9-5), the horizontal sliding axis of guide (22), sliding sleeve (23) and limited block (24); Described left guide type shoe (20) is socketed on the horizontal sliding axis of guide (22) by the sliding sleeve (23) being fixed on bottom; The piston rod of described 5th hydraulic cylinder (9-5) is connected with sliding sleeve (23); Described limited block (24) is located at the horizontal sliding axis of guide (22) two ends, left and right.
5. high temperature blank removes the device of surface oxide layer in hot extrusion technique according to claim 4, it is characterized in that: set up outer wall and remove oxide layer mechanism (1), described outer wall is removed oxide layer mechanism (1) and is comprised the 3rd kicker cylinder (8-3), four-wheel drive motor (14-4), the 6th hydraulic cylinder (9-6) and the 7th hydraulic cylinder (9-7); The two ends of described 3rd kicker cylinder (8-3) are fixed on the piston rod of the 6th hydraulic cylinder (9-6) and the 7th hydraulic cylinder (9-7) by axle sleeve, and the 3rd kicker cylinder is driven by four-wheel drive motor (14-4); Fixing many groups impact chain (11) in interval on the roll surface of described 3rd kicker cylinder (8-3).
6. high temperature blank removes the device of surface oxide layer in hot extrusion technique according to claim 5, it is characterized in that: set up spray cooling mechanism, described spray cooling mechanism comprises water tank (28) and water pump (29), and described water tank (28) is through the inner space of water pump (29) with the second kicker cylinder (8-2).
7. high temperature blank removes the device of surface oxide layer in hot extrusion technique according to claim 6, it is characterized in that: set up impact chain fixed head, described impact chain fixed head is elongate configuration, and described impact chain (11) is articulated in impact chain fixed head (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708918.7A CN103706667B (en) | 2013-12-20 | 2013-12-20 | In a kind of hot extrusion technique, high temperature blank removes the device of surface oxide layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310708918.7A CN103706667B (en) | 2013-12-20 | 2013-12-20 | In a kind of hot extrusion technique, high temperature blank removes the device of surface oxide layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103706667A CN103706667A (en) | 2014-04-09 |
| CN103706667B true CN103706667B (en) | 2016-02-03 |
Family
ID=50400218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310708918.7A Active CN103706667B (en) | 2013-12-20 | 2013-12-20 | In a kind of hot extrusion technique, high temperature blank removes the device of surface oxide layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103706667B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA745031B (en) * | 1974-08-07 | 1976-03-31 | J Annergarn | Improved descaling equipment |
| US4218800A (en) * | 1979-03-16 | 1980-08-26 | Acme Manufacturing Company | Planetary grinder and polisher |
| CN2312775Y (en) * | 1996-07-31 | 1999-04-07 | 镇海炼油化工股份有限公司 | Rust-removing machine for pipe |
| CN102039329B (en) * | 2011-01-04 | 2014-04-02 | 马鞍山钢铁股份有限公司 | Mechanical descaler |
| CN102921766B (en) * | 2012-11-13 | 2015-11-04 | 河北宏润核装备科技股份有限公司 | The scale removal equipment of high temperature blank in seamless steel pipe hot extrusion technique |
-
2013
- 2013-12-20 CN CN201310708918.7A patent/CN103706667B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103706667A (en) | 2014-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103612189B (en) | Square tube multiaspect synchronizing deruster | |
| CN102935575B (en) | Large-pipe-diameter shell section pair group extension device | |
| CN105127851A (en) | Plate surface grinding equipment | |
| CN202129304U (en) | Seven-roll full-hydraulic plate and strip straightening machine | |
| CN108296292A (en) | A kind of roller trio skew rolling manufacturing process of rail truck axle | |
| CN105584817B (en) | A turning device for accurate sand blasting machine | |
| CN103586545A (en) | Device for peeling outer circle of copper rod | |
| CN101664878B (en) | Copper rod extrusion cooling cutting device | |
| CN206356379U (en) | Pipe head rolls reducing device | |
| CN204997470U (en) | Surperficial grinding device of aluminium veneer | |
| CN205200445U (en) | Material feeding unit for forging press | |
| CN103706667B (en) | In a kind of hot extrusion technique, high temperature blank removes the device of surface oxide layer | |
| CN102921757A (en) | Automatic charging and discharging device for bend pipe cold-extrusion processing | |
| CN108747713A (en) | Aluminium material surface polishing machine | |
| CN210420054U (en) | Auger type quenching furnace | |
| CN215706740U (en) | Conveyer is used in steel pipe production and processing | |
| CN105149366A (en) | Phosphorus removal device for continuous casting slabs | |
| CN113680824B (en) | Double-station mandrel circulation stop rolling process and device for hot-rolled seamless pipe and application of double-station mandrel circulation stop rolling process and device | |
| CN205915218U (en) | A skip car that is used for steel pipe inner wall to throw ball | |
| CN201309075Y (en) | Copper rod extrusion cooling cutting device | |
| CN109722792B (en) | Automatic production equipment for fiber cotton pipe | |
| CN204817485U (en) | Shaping steel pipe rolling device | |
| CN208034100U (en) | A kind of bearing race production line that can efficiently carry out bearing race and grind expansion | |
| CN202219310U (en) | Forging blank descaling machine | |
| CN216801185U (en) | Straightening mechanism of high-performance alloy seamless pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 061300 Yanshan County Industrial Development Zone, Hebei Applicant after: HEBEI HONGRUN NUCLEAR EQUIPMENT SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 061300 Cangzhou City, Hebei province Yanshan County Pu wacheng Industrial Zone No. 6 Applicant before: HEBEI HONGRUN HEAVY INDUSTRY GROUP CO.,LTD. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201126 Address after: Room 703, Juqi building, haipo West Road, Yanshan County, Cangzhou City, Hebei Province Patentee after: Cangzhou Hongrun Enterprise Management Consulting Co.,Ltd. Address before: 061300 Yanshan County Industrial Development Zone, Hebei Patentee before: HEBEI HONGRUN NUCLEAR EQUIPMENT SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210714 Address after: 061000 Industrial Development Zone, Yanshan County, Cangzhou City, Hebei Province Patentee after: HEBEI HONGRUN NUCLEAR EQUIPMENT SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: Room 703, Juqi building, haipo West Road, Yanshan County, Cangzhou City, Hebei Province Patentee before: Cangzhou Hongrun Enterprise Management Consulting Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20231012 Granted publication date: 20160203 |
|
| PP01 | Preservation of patent right |