CN201544108U - Device for dedusting inner wall of steel pipe - Google Patents
Device for dedusting inner wall of steel pipe Download PDFInfo
- Publication number
- CN201544108U CN201544108U CN2009201968264U CN200920196826U CN201544108U CN 201544108 U CN201544108 U CN 201544108U CN 2009201968264 U CN2009201968264 U CN 2009201968264U CN 200920196826 U CN200920196826 U CN 200920196826U CN 201544108 U CN201544108 U CN 201544108U
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- steel pipe
- pipe
- axial support
- steel
- drive motors
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Abstract
The utility model relates to a device for dedusting the inner wall of a steel pipe, which belongs to the field of metal surface technical treatment. The utility model is realized through the following technical scheme: the device comprises a driving motor and a steel wire wheel rotating head, wherein the steel wire wheel rotating head is connected with the driving motor through a flexible shaft, a rigid axial support pipe is arranged outside the flexible shaft, one end of the axial support pipe is fixed with the driving motor, the driving motor is mounted on a rail self-traveling trolley, a rail of the rail self-traveling trolley is parallel to the axial line of the axial support pipe, and an in-pipe support device is further arranged outside the axial support pipe. The device is used for derusting the inner surface of the steel pipe.
Description
Technical field
The utility model relates to a kind of steel pipe inwall derusting device, belongs to technical finesse field, metal surface.
Background technology
Steel pipe is generally all stacked in outdoor place, and after stacking after a while, steel tube surface can produce corrosion, follow-up corrosion prevention operation and on-the-spot installation, use is all had extremely adverse influence, so must remove.The inner surface of steel pipe rust cleaning, particularly caliber be less than 450mm, the mode of " derusting by sandblasting " that generally can only adopt.Special " derusting by sandblasting " equipment more complicated, price are higher, and single complete equipment scope of application is little, use cost is higher.If follow-up need of steel pipe carry out 8710 anticorrosion or direct installations, use, only need to remove the inner surface corrosion, there is not " anchor line " requirement, then cost is too high for the words of employing " derusting by sandblasting ".Traditional wire wheel rust cleaning mode then needs manually-operated, and not only efficient is low, and labour intensity is big.
The utility model content
The purpose of this utility model provides a kind of steel pipe inwall derusting device, and it is easy and simple to handle, and whole rust cleaning process is carried out automation substantially, and simple in structure, cost is low.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of steel pipe inwall derusting device, comprise drive motors and wire wheel swivel head, be connected by flexible axle between described wire wheel swivel head and the drive motors, flexible axle is outside equipped with a stiff shaft to stay pipe, axial support Guan Yiduan and drive motors are fixed, drive motors is installed on the rail automatic carriage, the track of described rail automatic carriage is parallel with the axis of axial support pipe, and described axial support pipe also is provided with the pipe inner supporting device outward.
The drive motors that the utility model will be connected with the wire wheel swivel head is installed on the rail automatic carriage, its track is parallel with the middle bobbin thread of the steel pipe of waiting to eliminate rust, by dolly mobile realization rust cleaning axial feed in orbit, need not manually-operated, because axial feed length has 7 meters approximately, therefore is connected the transmission moment of torsion by flexible axle between wire wheel swivel head and the drive motors, compare with stiff shaft on the one hand and provide cost savings, also solved and longly be difficult to guarantee coaxial problem apart from turning cylinder and drive motors output shaft, flexible axle is outside equipped with a stiff shaft to stay pipe, stiff shaft is on stay pipe one end fixed drive motor housing, whole flexible axle is moved with the rail automatic carriage together with the wire wheel swivel head, the axial support pipe also is provided with the pipe inner supporting device outward simultaneously, and the pipe inner supporting device is as the guiding of wire wheel swivel head in steel pipe in the rust cleaning process, positioner.
As preferably, described axial support pipe hypothesis is on middle carrying roller, and middle carrying roller is V-shaped.Middle carrying roller is arranged on the port of the steel pipe of waiting to eliminate rust, and as the supplemental support of axial support pipe, makes the axial feed process more stable, and " V " shape is arranged and also had self-centering action simultaneously.
As preferably, described a kind of steel pipe inwall derusting device also is provided with one and makes and wait to eliminate rust the whirligig of steel pipe along its axis rotation.Above-mentioned setting make steel pipe in the rust cleaning process steel pipe self also around the rotation of its axis, even the wire wheel swivel head also can touch whole steel pipe inwall than pipe diameter is little.
As preferably, described whirligig comprises support, rolling bearing units, roller and buncher, and roller is symmetrically distributed in the both sides of the steel pipe axis of waiting to eliminate rust.As of the present utility model further one preferred, described roller also is provided with spacing shelves limit.The roller that the utility model drives by buncher drives the steel pipe rotation, uses buncher to control the rotating speed of steel pipe, satisfies the rust cleaning requirement of different size steel pipe, and roller is provided with a grade limit simultaneously, has prevented steel pipe landing from the roller.
As preferably, described pipe inner supporting device comprises bracing frame, regulating sleeve, returning spring, steel ball and clip, and described pipe inner supporting device is connected with the axial support pipe by clip, support frame as described above has four adjusting rods, be " X " shape, each adjusting rod is provided with external screw thread, and regulating sleeve one end is provided with the internal thread that is complementary with adjusting rod, one end opening, its opening diameter is less than diameter of the steel ball, and steel ball is installed in the regulating sleeve, and makes steel ball be close to opening part by returning spring.Above-mentioned setting contacts the pipe inner supporting device simultaneously with 4 of steel pipe inwalls, and by certain pretightning force, steel ball still can rotate when contact simultaneously, can satisfy when axial feed motion and steel pipe rotatablely move and carry out, make in the whole rust cleaning process, the wire wheel swivel head can be basicly stable on same point.
As preferably, also be provided with between described drive motors and the rail automatic carriage and highly regulate screw mandrel.Since wire wheel swivel head and drive motors coaxial line, the above-mentioned adjusting that is provided for wire wheel swivel head height.
In sum, the utlity model has following beneficial effect:
1, the utility model drive motors that will be connected with the wire wheel swivel head is installed on the rail automatic carriage, and its track is parallel with the middle bobbin thread of the steel pipe of waiting to eliminate rust, and by dolly mobile realization rust cleaning axial feed in orbit, need not manually-operated.
2, the utility model steel pipe in the rust cleaning process steel pipe self also around the rotation of its axis, even the wire wheel swivel head also can touch whole steel pipe inwall than pipe diameter is little.
3, the utility model is provided with simple in structurely, and cost is low.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is the connection diagram of this practical drive motors, wire wheel swivel head, flexible axle, axial support pipe and pipe inner supporting device;
Fig. 4 is the schematic diagram of carrying roller in the middle of the utility model;
Fig. 5 is the utility model pipe inner supporting device cutaway view.
In the accompanying drawing: 1. steel pipe, 2. wire wheel swivel head, 3. pipe inner supporting device, 4. axial support pipe, 5. flexible axle, 6. in the middle of carrying roller, 7. drive motors, 8. rail automatic carriage, 9. track is 10. highly regulated screw mandrel, 11. rolling bearing units, 12. spacing grades of limits, 13. roller, 14. supports, 15. bunchers, 16. sprocket wheel, 17. clips, 18. bracing frames, 19. regulating sleeve, 20. steel balls, 21. returning springs.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present utility model.
Shown in Fig. 1-4, a kind of steel pipe inwall derusting device, comprise drive motors 7 and wire wheel swivel head 2, be connected by flexible axle 5 between wire wheel swivel head 2 and the drive motors 1 and transmit moment of torsion, make flexible axle 5 drive 2 rotations of wire wheel swivel head, because flexible axle 5 can only transmit moment of torsion, and can not bear external force axial and radially, therefore outside flexible axle 5, also be provided with a stiff shaft to stay pipe 4, axial support pipe 4 one ends and drive motors 7 shells are fixed, the other end is equipped with bearing, connect flexible axle 5 output shafts and axial support pipe 4, drive motors 7 is installed on the rail automatic carriage 8 by highly regulating screw mandrel 10, can regulate the height of drive motors 7 by highly regulating screw mandrel 10, basic structure and principle those skilled in the art about rail automatic carriage 8 can both understand, no longer describe at this, the track 9 of rail automatic carriage 8 is parallel with the axis of the steel pipe 1 of waiting to eliminate rust, by the mobile axial feed motion that can realize in rust cleaning process wire wheel swivel head 2 of rail automatic carriage 8 on track 9, on the axial support pipe 4 at 2 about ten centimeters places of distance wire wheel swivel head, also be provided with a pipe inner supporting device 3, enter guiding behind the steel pipe as wire wheel swivel head 2, make wire wheel swivel head 2 can not produce bigger rocking owing to the reaction force that the rust cleaning process produces.Before pipe inner supporting device 3 does not enter steel pipe 1, whole axial support pipe 4 has only an end and drive motors 7 to fix, because whole axial support pipe 4 has 7 meters long approximately, therefore carrying roller 6 is as supplemental support in the middle of also being provided with one between steel pipe 1 and rail automatic carriage 8, middle carrying roller 6 is V-shaped, has the self-centering function.The utility model also is provided with one and makes and wait to eliminate rust the whirligig of steel pipe 1 along himself axis rotation, comprise support 14, rolling bearing units 11, roller 13 and buncher 15, roller 13 is fixed on the support 14 by rolling bearing units 11, roller 13 is symmetrically distributed in the both sides of steel pipe 1 axis, buncher 15 output shafts are equipped with sprocket wheel 16, drive roller 13 rotations by the chain transmission, thereby driving the steel pipe 1 that is placed on the roller 13 rotates along its axis, on two ends roller 13, also be provided with spacing shelves limit 12, to prevent that steel pipe 1 falls from roller 13 owing to the reaction force of wire wheel swivel head 1 axial feed in the rust cleaning process.As shown in Figure 5, pipe inner supporting device 3 comprises clip 17, bracing frame 18, regulating sleeve 19, steel ball 20 and returning spring 21 are formed, bracing frame 18 is made up of four adjusting rods, be " X " shape, bracing frame 18 is installed on the axial support pipe 4 by clip 17, on four adjusting rods of bracing frame 18 external screw thread is arranged all, regulating sleeve 19 1 ends for adjusting rod on the internal thread that is complementary of external screw thread, one end opening, its opening diameter is more smaller than the diameter of steel ball 20, steel ball 20 can be put into by the internal thread place, after putting into returning spring 21 again, be installed together with adjusting rod, steel ball 20 is owing to be subjected to the thrust of returning spring 21, make steel ball 20 be crushed on regulating sleeve 19 opening parts, and steel ball 20 parts are protruded outside opening part, by regulating the distance between regulating sleeve 19 and the adjusting rod, after above-mentioned setting makes pipe inner supporting device 3 enter steel pipe 1, can keep in touch with 4 of steel pipe 1 inwalls simultaneously, and by certain pretightning force, steel ball still can rotate when contact simultaneously, can satisfy when axial feed motion and steel pipe 1 rotatablely move and carry out, make in the whole rust cleaning process, wire wheel swivel head 2 can be basicly stable on same point, by changing the requirement that different pipe inner supporting devices 3 can satisfy 1 rust cleaning of different size steel pipe
Using method:
(1) according to the length of the steel pipe 1 of required processing, adjust the distance of 13 on each roller, according to the caliber of the steel pipe 1 of required processing, adjust the height of drive motors 7, middle carrying roller 6, and select suitable pipe inner supporting device 3 for use.
(2) steel pipe 1 is hung on the whirligig, require to be placed between the spacing shelves limit 12 of two side wheels 13.
(3) start rail automatic carriage 8, make wire wheel swivel head 2 and pipe inner supporting device enter the mouth of pipe 3.
(4) set buncher 15 rotating speeds, rail automatic carriage 8 speeds of travel.
(5) start buncher 15 earlier and make steel pipe 1 rotation, restart drive motors 7 and make 2 rotations of wire wheel swivel head, advance at startup rail automatic carriage 8 then.
(6) after wire wheel swivel head 2 advanced to steel pipe 1 other end mouth of pipe, both rust cleaning work was finished, and stopped buncher 15, drive motors 7, and rail automatic carriage 8 falls back, and withdraws from from steel pipe 1 until wire wheel swivel head 2.
(7) steel pipe 1 after will handling hangs.
Claims (7)
1. steel pipe inwall derusting device, comprise drive motors and wire wheel swivel head, it is characterized in that: be connected by flexible axle between described wire wheel swivel head and the drive motors, flexible axle is outside equipped with a stiff shaft to stay pipe, axial support Guan Yiduan and drive motors are fixed, drive motors is installed on the rail automatic carriage, and the track of described rail automatic carriage is parallel with the axis of axial support pipe, and described axial support pipe also is provided with the pipe inner supporting device outward.
2. a kind of steel pipe inwall derusting device according to claim 1 is characterized in that: described axial support pipe hypothesis is on middle carrying roller, and middle carrying roller is V-shaped.
3. a kind of steel pipe inwall derusting device according to claim 1 is characterized in that: described a kind of steel pipe inwall derusting device also is provided with one and makes and wait to eliminate rust the whirligig of steel pipe along its axis rotation.
4. a kind of steel pipe inwall derusting device according to claim 3, it is characterized in that: described whirligig comprises support, rolling bearing units, roller and buncher, roller is symmetrically distributed in the both sides of the steel pipe axis of waiting to eliminate rust.
5. a kind of steel pipe inwall derusting device according to claim 4 is characterized in that: described roller also is provided with spacing shelves limit.
6. a kind of steel pipe inwall derusting device according to claim 1, it is characterized in that: described pipe inner supporting device comprises bracing frame, regulating sleeve, returning spring, steel ball and clip, described pipe inner supporting device is connected with the axial support pipe by clip, support frame as described above has four adjusting rods, be " X " shape, each adjusting rod is provided with external screw thread, regulating sleeve one end is provided with the internal thread that is complementary with adjusting rod, one end opening, its opening diameter is less than diameter of the steel ball, and steel ball is installed in the regulating sleeve, and makes steel ball be close to opening part by returning spring.
7. a kind of steel pipe inwall derusting device according to claim 1 is characterized in that: also be provided with between described drive motors and the rail automatic carriage and highly regulate screw mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201968264U CN201544108U (en) | 2009-09-20 | 2009-09-20 | Device for dedusting inner wall of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201968264U CN201544108U (en) | 2009-09-20 | 2009-09-20 | Device for dedusting inner wall of steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201544108U true CN201544108U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201968264U Expired - Lifetime CN201544108U (en) | 2009-09-20 | 2009-09-20 | Device for dedusting inner wall of steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201544108U (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717323A (en) * | 2012-06-14 | 2012-10-10 | 中国十九冶集团有限公司 | Cleaning process of inner wall of seamless steel pipe |
| CN102716879A (en) * | 2012-06-14 | 2012-10-10 | 中国十九冶集团有限公司 | Cleaning system for inner wall of seamless steel pipe |
| CN102716878A (en) * | 2012-06-14 | 2012-10-10 | 中国十九冶集团有限公司 | Moving device for wire brush for cleaning inner wall of seamless steel tube |
| CN103157630A (en) * | 2013-03-28 | 2013-06-19 | 安徽汇川机械有限公司 | Cleaning device for honing pipe |
| CN103157585A (en) * | 2011-12-16 | 2013-06-19 | 陕西天元材料保护科技有限公司 | Special inner wall knife coater for oil cylinder and inner wall knife coating method thereof |
| CN103522134A (en) * | 2013-09-18 | 2014-01-22 | 浙江威能消防器材股份有限公司 | Aluminum bottle inner wall grinding machine |
| CN103991013A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Synchronous grinding device for inner surface and outer surface of steel pipe end |
| CN104149004A (en) * | 2014-08-14 | 2014-11-19 | 茂名重力石化机械制造有限公司 | Polishing device for inner pipe abutted seams of rapid-cooling heat exchanger |
| CN105290907A (en) * | 2014-07-25 | 2016-02-03 | 宝山钢铁股份有限公司 | Sharpening machine for weld reinforcement in longitudinal welded pipe |
| CN105797994A (en) * | 2016-04-29 | 2016-07-27 | 天津君晟科技发展有限公司 | Sweeping device in automobile rear axle shell |
| CN106217162A (en) * | 2016-08-22 | 2016-12-14 | 梁媛媛 | Steel pipe burr remover |
| CN106826526A (en) * | 2017-01-03 | 2017-06-13 | 浙江久立特材科技股份有限公司 | Burnishing device and interior polishing method in multiple tube |
| CN107414648A (en) * | 2015-08-19 | 2017-12-01 | 周紫阳 | A kind of rust removing device for steel tube |
| CN107900880A (en) * | 2017-12-05 | 2018-04-13 | 孙华明 | Derusting cleaning equipment for steel duct |
| CN108296890A (en) * | 2018-03-22 | 2018-07-20 | 淮南矿业(集团)有限责任公司 | A kind of steel pipe inside and outside wall derusting device |
| CN111347293A (en) * | 2020-03-27 | 2020-06-30 | 陈一芳 | Secondary recycling treatment process for environment-friendly sewage pipeline |
| CN111421442A (en) * | 2020-03-27 | 2020-07-17 | 陈一芳 | Environment-friendly sewage pipeline secondary recycling treatment device |
| CN111644908A (en) * | 2020-06-16 | 2020-09-11 | 马鞍山观点信息科技有限公司 | Pipeline equipment of polishing for building house |
| CN112959152A (en) * | 2021-03-01 | 2021-06-15 | 蔡涛 | Rust removal device for automobile steel pipe |
| CN113001416A (en) * | 2021-03-25 | 2021-06-22 | 湖南前元新材料有限公司 | Plastic-coated composite steel pipe inner and outer rust removal integrated equipment and pipeline forming rust removal process thereof |
| CN113146442A (en) * | 2021-03-01 | 2021-07-23 | 蔡涛 | Sand removing device for automobile castings |
| CN113714216A (en) * | 2021-08-30 | 2021-11-30 | 长江大学 | Mechanical descaling device for petroleum pipeline |
| CN114226376A (en) * | 2021-12-15 | 2022-03-25 | 江阴市南方不锈钢管有限公司 | Steel pipe inner wall surface cleaning device |
| CN116749065A (en) * | 2023-08-17 | 2023-09-15 | 哈尔滨理工大学 | Metal material surface treatment equipment |
-
2009
- 2009-09-20 CN CN2009201968264U patent/CN201544108U/en not_active Expired - Lifetime
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157585A (en) * | 2011-12-16 | 2013-06-19 | 陕西天元材料保护科技有限公司 | Special inner wall knife coater for oil cylinder and inner wall knife coating method thereof |
| CN103157585B (en) * | 2011-12-16 | 2015-11-18 | 陕西天元智能再制造股份有限公司 | A kind of special inwall doctor knife coater of oil cylinder and inwall knife coating procedure thereof |
| CN102716879A (en) * | 2012-06-14 | 2012-10-10 | 中国十九冶集团有限公司 | Cleaning system for inner wall of seamless steel pipe |
| CN102716878A (en) * | 2012-06-14 | 2012-10-10 | 中国十九冶集团有限公司 | Moving device for wire brush for cleaning inner wall of seamless steel tube |
| CN102717323A (en) * | 2012-06-14 | 2012-10-10 | 中国十九冶集团有限公司 | Cleaning process of inner wall of seamless steel pipe |
| CN103991013A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Synchronous grinding device for inner surface and outer surface of steel pipe end |
| CN103157630A (en) * | 2013-03-28 | 2013-06-19 | 安徽汇川机械有限公司 | Cleaning device for honing pipe |
| CN103522134A (en) * | 2013-09-18 | 2014-01-22 | 浙江威能消防器材股份有限公司 | Aluminum bottle inner wall grinding machine |
| CN105290907A (en) * | 2014-07-25 | 2016-02-03 | 宝山钢铁股份有限公司 | Sharpening machine for weld reinforcement in longitudinal welded pipe |
| CN104149004A (en) * | 2014-08-14 | 2014-11-19 | 茂名重力石化机械制造有限公司 | Polishing device for inner pipe abutted seams of rapid-cooling heat exchanger |
| CN107414648A (en) * | 2015-08-19 | 2017-12-01 | 周紫阳 | A kind of rust removing device for steel tube |
| CN105797994B (en) * | 2016-04-29 | 2018-01-26 | 天津君晟科技发展有限公司 | Clearing apparatus in a kind of vehicle rear-axle housing body |
| CN105797994A (en) * | 2016-04-29 | 2016-07-27 | 天津君晟科技发展有限公司 | Sweeping device in automobile rear axle shell |
| CN106217162A (en) * | 2016-08-22 | 2016-12-14 | 梁媛媛 | Steel pipe burr remover |
| CN106826526A (en) * | 2017-01-03 | 2017-06-13 | 浙江久立特材科技股份有限公司 | Burnishing device and interior polishing method in multiple tube |
| CN107900880A (en) * | 2017-12-05 | 2018-04-13 | 孙华明 | Derusting cleaning equipment for steel duct |
| CN107900880B (en) * | 2017-12-05 | 2019-08-20 | 新沂经济开发区建设发展有限公司 | Derusting cleaning equipment for steel duct |
| CN108296890A (en) * | 2018-03-22 | 2018-07-20 | 淮南矿业(集团)有限责任公司 | A kind of steel pipe inside and outside wall derusting device |
| CN111421442B (en) * | 2020-03-27 | 2021-12-03 | 江苏汇海新材料科技有限公司 | Environment-friendly sewage pipeline secondary recycling treatment device |
| CN111347293A (en) * | 2020-03-27 | 2020-06-30 | 陈一芳 | Secondary recycling treatment process for environment-friendly sewage pipeline |
| CN111421442A (en) * | 2020-03-27 | 2020-07-17 | 陈一芳 | Environment-friendly sewage pipeline secondary recycling treatment device |
| CN111347293B (en) * | 2020-03-27 | 2022-03-25 | 陈一芳 | Secondary recycling treatment process for environment-friendly sewage pipeline |
| CN111644908A (en) * | 2020-06-16 | 2020-09-11 | 马鞍山观点信息科技有限公司 | Pipeline equipment of polishing for building house |
| CN113146442A (en) * | 2021-03-01 | 2021-07-23 | 蔡涛 | Sand removing device for automobile castings |
| CN112959152A (en) * | 2021-03-01 | 2021-06-15 | 蔡涛 | Rust removal device for automobile steel pipe |
| CN112959152B (en) * | 2021-03-01 | 2022-04-08 | 蜗牛货车网(山东)电子商务有限公司 | Rust removal device for automobile steel pipe |
| CN113001416A (en) * | 2021-03-25 | 2021-06-22 | 湖南前元新材料有限公司 | Plastic-coated composite steel pipe inner and outer rust removal integrated equipment and pipeline forming rust removal process thereof |
| CN113714216A (en) * | 2021-08-30 | 2021-11-30 | 长江大学 | Mechanical descaling device for petroleum pipeline |
| CN114226376A (en) * | 2021-12-15 | 2022-03-25 | 江阴市南方不锈钢管有限公司 | Steel pipe inner wall surface cleaning device |
| CN116749065A (en) * | 2023-08-17 | 2023-09-15 | 哈尔滨理工大学 | Metal material surface treatment equipment |
| CN116749065B (en) * | 2023-08-17 | 2023-11-03 | 哈尔滨理工大学 | Metal material surface treatment equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |