CN103722036A - Drawing device and method of nuclear power super pipeline nozzles - Google Patents
Drawing device and method of nuclear power super pipeline nozzles Download PDFInfo
- Publication number
- CN103722036A CN103722036A CN201310691632.2A CN201310691632A CN103722036A CN 103722036 A CN103722036 A CN 103722036A CN 201310691632 A CN201310691632 A CN 201310691632A CN 103722036 A CN103722036 A CN 103722036A
- Authority
- CN
- China
- Prior art keywords
- ozzle
- nuclear power
- matched moulds
- lifting arm
- power super
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000000498 cooling water Substances 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000010297 mechanical methods and process Methods 0.000 claims description 3
- 230000005226 mechanical processes and functions Effects 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The invention discloses a drawing device and method of nuclear power super pipeline nozzles, and aims to solve the technical problem of drawing of a nozzle on a nuclear power super pipeline. The drawing device comprises a base platform, a drawing die, a rotary flame heating mechanism, a rotating driving mechanism, a lifting arm, a lifting cylinder and a PLC (programmable logic controller) system, wherein the base platform is fixed on the level ground; the drawing die is installed on one side of the base platform; the lifting cylinder is fixedly installed on the other side of the base platform; the telescopic arm of the lifting cylinder is connected with the lifting arm; the lifting arm adopts an inverted L-shaped structure; the tail end of the lifting arm is positioned above the drawing die; the rotary flame heating mechanism is installed at the tail end of the lifting arm. The drawing device not only realizes automation control, reduces the labor intensity of operators and improves operating conditions, but also improves the production efficiency and guarantees the product quality.
Description
Technical field
The present invention relates to a kind of pipeline ozzle draw device and draw method, especially a kind of nuclear power super pipeline ozzle draw device and method, belongs to steel pipe processing technique field.
Background technology
Nuclear power super pipeline is the important component part of nuclear power station main steam line, because it is connected with safety valve, therefore ozzle need to be set on tube wall.For meeting Nuclear piping designing requirement, super pipeline top fitting should with female pipe global formation, with guarantee pipeline and ozzle material internal fibr tissue continuously.
The processing of traditional nuclear power super pipeline ozzle adopts first prefabricated ozzle, the mode with the welding of conduit component main body by ozzle again, and so not only technique is loaded down with trivial details, but also uses the problems such as limited and service life is short because weld seam causes product.Although part producing enterprise has adopted draw moulding process at present, by tubing is heated, utilize mould extruding to make the local generation of tubing plastic deformation, thereby on tubing parent, obtain meeting the ozzle of dimensional requirement, but in prior art, owing to adopting tubing entirety mode of heating, not only operator's labour intensity is large, inefficiency, and after nozzle molding, also to carry out reconditioning work, caused the waste of the energy.
Summary of the invention
The object of the invention is to the drawback for prior art, provide a kind of and realize automatic control, can reduce operator's labour intensity, guarantee the nuclear power super pipeline ozzle draw device and method of product quality.
Problem of the present invention realizes with following technical proposals:
A kind of nuclear power super pipeline ozzle draw device, it comprises base platform, drawing mould, rotary flame heating arrangements, rotary drive mechanism, lifting arm, hoist cylinder and PLC system, described base platform is fixed on level ground, in base platform one side, drawing mould is installed, at its opposite side fixed installation hoist cylinder, the telescopic arm of described hoist cylinder is connected with lifting arm, described lifting arm is inverted " L " type structure, its end is positioned at drawing mould top, at lifting arm end, rotary flame heating arrangements is installed.
Above-mentioned nuclear power super pipeline ozzle draw device, described rotary flame heating arrangements comprises swivel nozzle seat, nozzle and nozzle cooling water cover, described swivel nozzle seat outside is provided with heat-insulation layer, swivel nozzle seat is cavity structure, its internal cavities is communicated with fuel gas pipeline and oxygen pipeline, swivel nozzle seat one end is by thrust bearing and lifting arm assembling, at the uniform one group of nozzle of its other end, described nozzle ejection end arranges nozzle cooling water cover, described nozzle cooling water cover and cooling water system pipeline connection.
Above-mentioned nuclear power super pipeline ozzle draw device, described rotary drive mechanism comprises motor and belt drive component, described motor is fixed on lifting arm, its output shaft and the assembling of belt drive component driving pulley, the fixing assembling of described belt drive component driven pulley and swivel nozzle seat.
Above-mentioned nuclear power super pipeline ozzle draw device, described drawing mould comprises outer matched moulds, internal mold, ejects mould, ejection cylinder and sliding bottom, described outer matched moulds is two-piece unit formula structure, matched moulds top arranges the opening mating with internal mold outside, described internal mold sidewall and ozzle outer wall form fit, it is by the assembling of pin and outer matched moulds, described in eject mould and be fixed on ejection cylinder telescopic arm, eject the outer contour curved surface of mould and mate with ozzle inner wall shape, described ejection cylinder is fixed on sliding bottom.
Above-mentioned nuclear power super pipeline ozzle draw device, the action of described rotary flame heating arrangements, rotary drive mechanism and hoist cylinder is by the control of PLC system.
A kind of nuclear power super pipeline ozzle draw method, it,, by tubing local heat, utilizes drawing mould extrude tubes to make its local generation plastic deformation, thereby on tubing parent, obtains meeting the ozzle of dimensional requirement, and its operating procedure is as follows:
A, the latter half of outer matched moulds is fixed on to a side of base platform, tubing workpiece is placed in outer matched moulds the latter half cavity, by outer matched moulds the first half and the assembling of outer matched moulds the latter half;
B, ejection cylinder is fixed on sliding bottom, on the top of ejection cylinder telescopic arm, installs and eject mould, sliding bottom is sent in tubing workpiece lumen, and fixed at setting position;
C, internal mold is put into the opening of outer matched moulds and fix with pin;
D, by PLC system control hoist cylinder, moved, the distance at rotary flame heating arrangements and tubing workpiece heating position is met design requirement, and then worked by the rotary flame heating arrangements of PLC system control, rotary drive mechanism and water cooling system;
E, at tubing workpiece heating position, reach after technological requirement temperature, by the telescopic arm of PLC system control ejection cylinder, stretched out, drive to eject mould and move upward, on tubing workpiece, form ozzle.
Above-mentioned nuclear power super pipeline ozzle draw method is offered in advance fabrication hole in advance on tubing workpiece, and the aperture of described fabrication hole meets drawing dimensional requirement.
Above-mentioned nuclear power super pipeline ozzle draw method, after the moulding of described ozzle draw, carries out mechanical process.
Nuclear power super pipeline ozzle draw device of the present invention drives nozzle rotation by rotary drive mechanism, has guaranteed tubing workpiece deformation position thermally equivalent; Nuclear power super pipeline ozzle draw device of the present invention is provided with hoist cylinder and lifting arm on base, by hoist cylinder, moves to meet flame and workpiece deformation position apart from adjusting requirement; Nuclear power super pipeline ozzle draw device of the present invention arranges nozzle cooling water cover in the bottom of nozzle, by water cooling system, nozzle is carried out cooling, effectively avoided nozzle tempering detonation phenomenon occur; Nuclear power super pipeline ozzle draw method of the present invention is utilized nuclear power super pipeline ozzle draw device, by the action of the rotary flame heating arrangements of PLC system control, rotary drive mechanism and hoist cylinder, and by the cooperation of mould, effectively guaranteed the precision of nozzle molding.In a word, the present invention has not only realized automation control, has reduced operator's labour intensity, has improved operating condition, and has improved production efficiency, has guaranteed product quality.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is nuclear power super pipeline ozzle draw apparatus structure schematic diagram;
Fig. 2～Fig. 6 is nuclear power super pipeline ozzle process of tube plug drawing mill schematic diagram.
In figure, each list of reference numerals is: 1, base platform, 2, sliding bottom, 3, ejection cylinder, 4, outer matched moulds, 5, internal mold, 6, pin, 7, tubing workpiece, 7-1, fabrication hole, 8, eject mould, 9, nozzle cooling water cover, 10, nozzle, 11, belt, 12, driven pulley, 13, lifting arm, 14, driving pulley, 15, motor, 16, hoist cylinder, 17, swivel nozzle seat, 18, thrust bearing, 19, heat-insulation layer.
The specific embodiment
Referring to Fig. 1, the present invention includes base platform 1, drawing mould, rotary flame heating arrangements, rotary drive mechanism, lifting arm 13, hoist cylinder 16 and PLC system, described base platform 1 is fixed on level ground, in base platform 1 one sides, drawing mould is installed, at its opposite side fixed installation hoist cylinder 16, the telescopic arm of described hoist cylinder 16 is connected with lifting arm 13, described lifting arm 13 is inverted " L " type structure, its end is positioned at drawing mould top, at the end of lifting arm 13, rotary flame heating arrangements is installed; Described rotary flame heating arrangements comprises swivel nozzle seat 17, nozzle 10 and nozzle cooling water cover 9, described swivel nozzle seat 17 outsides are provided with heat-insulation layer 19, swivel nozzle seat 17 is cavity structure, its internal cavities is communicated with fuel gas pipeline and oxygen pipeline, assemble by thrust bearing 18 and lifting arm 13 swivel nozzle seat 17 one end, at the uniform one group of nozzle 10 of its other end, described nozzle 10 bottoms arrange nozzle cooling water cover 9, described nozzle cooling water cover 9 and cooling water system pipeline connection; Described rotary drive mechanism comprises motor 15 and belt drive component, described motor 15 is fixed on lifting arm 13, its output shaft and belt drive component driving pulley 14 assemble, described belt drive component driven pulley 12 and the fixing assembling of swivel nozzle seat 17, the belt 11 of belt drive component assembles with driving pulley 14 and driven pulley 12; Described drawing mould comprises outer matched moulds 4, internal mold 5, ejects mould 8, ejection cylinder 3 and sliding bottom 2, described outer matched moulds 4 is two-piece unit formula structure, matched moulds 4 tops arrange the opening mating with internal mold outside, described internal mold 5 sidewalls and ozzle outer wall form fit, it assembles by pin 6 and outer matched moulds 4, described ejecting on the telescopic arm that mould 8 is fixed on ejection cylinder 3, ejects the outer contour curved surface of mould 8 and mates with ozzle inner wall shape, and described ejection cylinder 3 is fixed on sliding bottom 2.
Referring to Fig. 2～Fig. 6, a kind of nuclear power super pipeline ozzle draw method, it,, by tubing local heat, utilizes drawing mould extrude tubes workpiece 7 to make its local generation plastic deformation, thereby on tubing parent, obtains meeting the ozzle of dimensional requirement.Its operating process is: on tubing workpiece 7, offer in advance in advance fabrication hole 7-1, the aperture of described fabrication hole 7-1 meets drawing dimensional requirement, then operation in the steps below,
A, the latter half of outer matched moulds 4 is fixed on to a side of base platform 1, tubing workpiece 7 is placed in outer matched moulds 4 the latter half cavitys, by outer matched moulds 4 the first half and the 4 the latter halfs assemblings of outer matched moulds;
B, ejection cylinder 3 is fixed on sliding bottom 2, on the top of ejection cylinder 3 telescopic arms, installs and eject mould 8, sliding bottom 2 is sent in tubing workpiece 7 inner chambers, and fixed at setting position;
C, internal mold 5 is put into the opening of outer matched moulds 4 fixing with pin 6;
D, by PLC system control hoist cylinder 16, moved, the distance that makes rotary flame heating arrangements and tubing workpiece 7 heat position meets design requirement, and then is worked by the rotary flame heating arrangements of PLC system control, rotary drive mechanism and water cooling system;
E, at tubing workpiece heating position, reach after technological requirement temperature, by the telescopic arm of PLC system control ejection cylinder 3, stretched out, drive to eject mould 8 and move upward, on tubing workpiece 7, form ozzle.
After the moulding of ozzle draw, carry out mechanical process.
Referring to Fig. 1～Fig. 6, the present invention drives nozzle 10 to rotate by rotary drive mechanism, has guaranteed tubing workpiece 7 deformation place thermally equivalents; The present invention is provided with hoist cylinder 16 and lifting arm 13 in base platform 1, by hoist cylinder 16 action meet flame with workpiece deformation position apart from adjustment requirement; The present invention arranges nozzle cooling water cover 9 in the bottom of nozzle 10, by water cooling system, nozzle 10 is carried out coolingly, has effectively avoided the tempering detonation phenomenon of nozzle to occur; The present invention can pass through the accurate Calculation to die size, fully guarantees the precision of nozzle molding.
Claims (8)
1. a nuclear power super pipeline ozzle draw device, it is characterized in that, it comprises base platform (1), drawing mould, rotary flame heating arrangements, rotary drive mechanism, lifting arm (13), hoist cylinder (16) and PLC system, described base platform (1) is fixed on level ground, in base platform (1) one side, drawing mould is installed, at its opposite side fixed installation hoist cylinder (16), the telescopic arm of described hoist cylinder (16) is connected with lifting arm (13), described lifting arm (13) is inverted " L " type structure, its end is positioned at drawing mould top, at the end of lifting arm (13), rotary flame heating arrangements is installed.
2. a kind of nuclear power super pipeline ozzle draw device according to claim 1, it is characterized in that, described rotary flame heating arrangements comprises swivel nozzle seat (17), nozzle (10) and nozzle cooling water cover (9), described swivel nozzle seat (17) outside is provided with heat-insulation layer (19), swivel nozzle seat (17) is cavity structure, its internal cavities is communicated with fuel gas pipeline and oxygen pipeline, swivel nozzle seat (17) one end is by thrust bearing (18) and lifting arm (13) assembling, at the uniform one group of nozzle of its other end (10), described nozzle (10) bottom arranges nozzle cooling water cover (9), described nozzle cooling water cover (9) and cooling water system pipeline connection.
3. a kind of nuclear power super pipeline ozzle draw device according to claim 1 and 2, it is characterized in that, described rotary drive mechanism comprises motor (15) and belt drive component, described motor (15) is fixed on lifting arm (13), its output shaft and belt drive component driving pulley (14) assembling, described belt drive component driven pulley (12) and the fixing assembling of swivel nozzle seat (17).
4. a kind of nuclear power super pipeline ozzle draw device according to claim 3, it is characterized in that, described drawing mould comprises outer matched moulds (4), internal mold (5), eject mould (8), ejection cylinder (3) and sliding bottom (2), described outer matched moulds (4) is two-piece unit formula structure, it mates with tubing workpiece (7), matched moulds (4) top arranges the opening mating with internal mold outside, described internal mold (5) sidewall and ozzle outer wall form fit, it is by pin (6) and outer matched moulds (4) assembling, the described mould (8) that ejects is fixed on the telescopic arm of ejection cylinder (3), the outer contour curved surface that ejects mould (8) mates with ozzle inner wall shape, described ejection cylinder (3) is fixed on sliding bottom (2).
5. a kind of nuclear power super pipeline ozzle draw device according to claim 4, is characterized in that, the action of described rotary flame heating arrangements, rotary drive mechanism and hoist cylinder (16) is by the control of PLC system.
6. a nuclear power super pipeline ozzle draw method, is characterized in that, it,, by tubing local heat, utilizes drawing mould extrude tubes to make its local generation plastic deformation, thereby on tubing parent, obtain meeting the ozzle of dimensional requirement, and its operating procedure is as follows:
A, the latter half of outer matched moulds (4) is fixed on to a side of base platform (1), tubing workpiece (7) is placed in outer matched moulds the latter half cavity, by outer matched moulds the first half and the assembling of outer matched moulds the latter half;
B, that ejection cylinder (3) is fixed on to sliding bottom (2) is upper, on the top of ejection cylinder (3) telescopic arm, installs and ejects mould (8), sliding bottom (2) is sent in the inner chamber of tubing workpiece (7), and fixed at setting position;
C, internal mold (5) is put into the opening of outer matched moulds (4) fixing with pin (6);
D, by PLC system control hoist cylinder (16), moved, the distance at rotary flame heating arrangements and tubing workpiece (7) heating position is met design requirement, and then worked by the rotary flame heating arrangements of PLC system control, rotary drive mechanism and water cooling system;
E, at tubing workpiece heating position, reach after technological requirement temperature, by the telescopic arm of PLC system control ejection cylinder (3), stretched out, drive to eject mould (8) and move upward, at the upper ozzle that forms of tubing workpiece (7).
7. a kind of nuclear power super pipeline ozzle draw method according to claim 6, is characterized in that, on tubing workpiece (7), offer in advance in advance fabrication hole (7-1), the aperture of described fabrication hole (7-1) meets drawing dimensional requirement.
8. a kind of nuclear power super pipeline ozzle draw method according to claim 7, is characterized in that, after the moulding of described ozzle draw, carries out mechanical process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691632.2A CN103722036B (en) | 2013-12-17 | 2013-12-17 | A kind of nuclear power super pipeline ozzle draw device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310691632.2A CN103722036B (en) | 2013-12-17 | 2013-12-17 | A kind of nuclear power super pipeline ozzle draw device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103722036A true CN103722036A (en) | 2014-04-16 |
| CN103722036B CN103722036B (en) | 2016-02-03 |
Family
ID=50446467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310691632.2A Active CN103722036B (en) | 2013-12-17 | 2013-12-17 | A kind of nuclear power super pipeline ozzle draw device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103722036B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269949A (en) * | 2016-08-13 | 2017-01-04 | 江苏标新工业有限公司 | A kind of manufacturing process of super 60mm wall thickness big small-bore pipeline ozzle |
| CN108044084A (en) * | 2018-01-16 | 2018-05-18 | 福建亚亨机械股份有限公司 | The heating arrangements of highly automated adjusting in bus-bar automatic forming equipment |
| CN113579143A (en) * | 2021-07-30 | 2021-11-02 | 贵州航天新力科技有限公司 | Forming die and forming method for tube nozzle of tube body with tube nozzle |
| CN115301751A (en) * | 2022-10-11 | 2022-11-08 | 江苏新恒基特种装备股份有限公司 | Method and device for measuring wall thickness of branch pipe and imaging bulge position of multi-branch pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111029A (en) * | 1976-01-09 | 1978-09-05 | Creusot-Loire | Manufacture of pipe stubs in walls of very great thickness |
| CN101767172A (en) * | 2009-12-31 | 2010-07-07 | 武汉重工铸锻有限责任公司 | Hot extrusion molding method for pipe nozzle of main steam super pipeline |
| CN201702935U (en) * | 2010-06-28 | 2011-01-12 | 江阴桦林高压管件制造有限公司 | Hot extrusion type hydraulic formation device for collecting tube |
| CN102794329A (en) * | 2012-08-31 | 2012-11-28 | 渤海重工管道有限公司 | Manufacturing equipment for nozzle of main steam super pipeline of nuclear power and pulling and extrusion manufacturing process for nozzle |
-
2013
- 2013-12-17 CN CN201310691632.2A patent/CN103722036B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111029A (en) * | 1976-01-09 | 1978-09-05 | Creusot-Loire | Manufacture of pipe stubs in walls of very great thickness |
| CN101767172A (en) * | 2009-12-31 | 2010-07-07 | 武汉重工铸锻有限责任公司 | Hot extrusion molding method for pipe nozzle of main steam super pipeline |
| CN201702935U (en) * | 2010-06-28 | 2011-01-12 | 江阴桦林高压管件制造有限公司 | Hot extrusion type hydraulic formation device for collecting tube |
| CN102794329A (en) * | 2012-08-31 | 2012-11-28 | 渤海重工管道有限公司 | Manufacturing equipment for nozzle of main steam super pipeline of nuclear power and pulling and extrusion manufacturing process for nozzle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269949A (en) * | 2016-08-13 | 2017-01-04 | 江苏标新工业有限公司 | A kind of manufacturing process of super 60mm wall thickness big small-bore pipeline ozzle |
| CN108044084A (en) * | 2018-01-16 | 2018-05-18 | 福建亚亨机械股份有限公司 | The heating arrangements of highly automated adjusting in bus-bar automatic forming equipment |
| CN113579143A (en) * | 2021-07-30 | 2021-11-02 | 贵州航天新力科技有限公司 | Forming die and forming method for tube nozzle of tube body with tube nozzle |
| CN115301751A (en) * | 2022-10-11 | 2022-11-08 | 江苏新恒基特种装备股份有限公司 | Method and device for measuring wall thickness of branch pipe and imaging bulge position of multi-branch pipe |
| CN115301751B (en) * | 2022-10-11 | 2022-12-27 | 江苏新恒基特种装备股份有限公司 | Method and device for measuring wall thickness of branch pipe and imaging bulge position of multi-branch pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103722036B (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103722036B (en) | A kind of nuclear power super pipeline ozzle draw device and method | |
| CN108817307A (en) | A kind of automobile control arm forging line and forging and forming technology | |
| CN103692646B (en) | A kind of PVC heavy caliber pipe-expanding machine | |
| CN103484632A (en) | Fully-automatic multi-station rotary type die-quenching press machine for ferrule type part | |
| CN100448644C (en) | One-step injection forming and valcanizing equipment and method for screw pump (screw drilling tool) stator rubber bush | |
| CN202716406U (en) | Inflating energy-saving rotational molding machine | |
| CN116728720A (en) | Quick fashioned swimming goggles injection mold | |
| CN201524908U (en) | Metal forming equipment with compound spinning and hot extrusion action | |
| CN212199334U (en) | Heating device for die quenching | |
| CN2910533Y (en) | One-step injection moulding vulcanizer for rubber bushing of stator of screw pump | |
| CN110918925B (en) | Aluminum alloy casting equipment and casting process thereof | |
| CN210308703U (en) | Foam rotary forming machine | |
| CN102514200A (en) | Hot extrusion and cold compression forming method of plastic inspection well | |
| CN210148573U (en) | Water conveying mold | |
| CN107599151B (en) | Production line for ceramic tubes | |
| CN114311491B (en) | Forming injection molding production equipment and production process for light fibrilia automotive interior trim parts | |
| CN206520151U (en) | A kind of slide unit vertical injection molding machine structure | |
| CN102729385B (en) | Single air-inflation structure for working arm of rotational moulding machine | |
| CN202727201U (en) | Double-aeration L-shaped arm of rotational moulding machine | |
| CN219988436U (en) | Thermoplastic polyurethane TPU material blowing cooling device | |
| CN202668843U (en) | Single inflation structure for plastic rolling machine working arm | |
| CN219634591U (en) | Tire vulcanization mold and tire vulcanization processing device | |
| CN202727200U (en) | Single-aeration L-shaped arm of rotational moulding machine | |
| CN216578835U (en) | Cold vulcanization vacuum forming device | |
| CN220242293U (en) | Injection mold with automatic material ejecting mechanism |
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 | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20231012 Granted publication date: 20160203 |
|
| PP01 | Preservation of patent right |