CN103157771B - For continuous casting forming process equipment and the method for metal - Google Patents
For continuous casting forming process equipment and the method for metal Download PDFInfo
- Publication number
- CN103157771B CN103157771B CN201210532953.3A CN201210532953A CN103157771B CN 103157771 B CN103157771 B CN 103157771B CN 201210532953 A CN201210532953 A CN 201210532953A CN 103157771 B CN103157771 B CN 103157771B
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- Prior art keywords
- continuous casting
- ferroalloy
- furnace
- casting forming
- metal
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 title abstract description 35
- 239000002184 metal Substances 0.000 title abstract description 35
- 238000010080 roll forging Methods 0.000 claims abstract description 20
- 238000005242 forging Methods 0.000 claims abstract description 19
- 238000003672 processing method Methods 0.000 claims abstract description 13
- 238000004080 punching Methods 0.000 claims abstract description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 claims description 26
- 238000007670 refining Methods 0.000 claims description 13
- 230000033764 rhythmic process Effects 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 abstract description 17
- 229910001338 liquidmetal Inorganic materials 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 description 46
- 239000010959 steel Substances 0.000 description 46
- 238000004519 manufacturing process Methods 0.000 description 19
- 239000000047 product Substances 0.000 description 11
- 238000009628 steelmaking Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 238000009866 aluminium metallurgy Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1282—Vertical casting and curving the cast stock to the horizontal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/141—Plants for continuous casting for vertical casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Metal Rolling (AREA)
Abstract
The invention provides the continuous casting forming process equipment for metal, it comprises: furnace, in order to meet the liquid metal of required condition after modified; Tundish, it holds by the modified liquid metal of furnace; Crystallizer, is condensed into metal base by liquid metal for the liquid metal that receives from tundish; Withdrawal straightening machine, pulls out the metal base in crystallizer and aligns; Characterized by further comprising: shear, it is set directly at the downstream of withdrawal straightening machine, for being cut off by metal base out from withdrawal straightening machine; And comprise: die forging device or roll forging device or punching machine, it is set directly at the downstream of shear, for to directly being carried out die forging by the metal base cut off or roll forging makes it be shaped to the product of required size and shape, or perforation processing is carried out to form seamless pipe to described blank.The invention still further relates to the continuous casting forming processing method for metal.
Description
Technical field
The present invention relates to a kind of continuous casting forming process equipment for metal and method, particularly relate to the continuous casting forming process equipment for steel and method.
Background technology
Existing steel mill substantially all have employed continuous casting technique (continuous casting process) after refining.Continuous casting process be refining is obtained the cast of liquid steel conticaster, condensation, cutting and directly obtain the technique of steel billet.During cast, the ladle that molten steel is housed is transported to the top of conticaster by ladle toter, steel outlet hole bottom ladle is injected into molten steel in tundish, after opening stopper rod of tundish (or slide gate nozzle), molten steel flow into end opening dummy head and blocks in the crystallizer of also energy up-down vibration, molten steel is condensed into base shell along crystallizer periphery, when there is certain thickness in exit, crystallizer lower end, with the liquid heart and and the steel billet that connects together of dummy device under Blank drawing machine drives, leave crystallizer and move down along the nip rolls support by arc shooting.Meanwhile, steel billet is cooled further by secondary cooling apparatus and continues to solidify.After dummy device enters withdrawal straightening machine, slough dummy device, steel billet all solidify or with liquid heart shaped state under aligned.The steel billet of certain size is cut into subsequently at horizontal level.
Steel billet is the semi-finished product producing the commercial stock such as shaped steel, Strip and steel pipe.
In order to economize energy, enhance productivity thus bring larger economic benefit for enterprise, there are some steel mills to adopt at present or wish to adopt direct hot charging hot rolling technology (DHCR, Direct Hot Charge Rolling), its be by casting between slab way of submission by batch submit to change " accurate streamline " formula way of submission into.After have employed DHCR technique, logistics becomes solid-state slab by liquid molten steel between steel smelting-continuous casting-rolling line, then after heating rolling, become solid-state coil of strip.
Although some steel mills achieve DHCR, but for needing the product adopting die forging or roll forging processing, remain at present and first produce steel billet by continuous casting process, deliver to stamping room or roll forging workshop more by the gross after being delivered to by the gross by steel blank afterwards or first putting in storage and process.This operation just makes also to need to carry out the techniques such as blanking, heating, base when steel blank being carried out die forging or roll forging, that is, its needs again heat steel blank after continuous casting process, therefore energy consumption is made to increase, and add freight, and make the production cycle elongated, improve the production cost of factory.
In addition, for the production of seamless steel pipe, current processing technology is generally cut through cutting machine by pipe, and then send into heating in smelting furnace, in smelting furnace, heating-up temperature is approximately 1200 degrees Celsius.Pipe carries out wearing sky through excess pressure punch after coming out of the stove.After perforation, pipe is just successively by roller trio skew rolling, tandem rolling or extruding, and de-pipe sizing after extruding, sizing mill proceeds to steel billet punching by taper bit high-speed rotary and forms steel pipe.
Equally, the techniques such as the production technology of above-mentioned traditional seamless steel pipe just makes also to need before being bored a hole by pipe to carry out to cut, heating, that is, its needs cut pipe and need again to heat after continuous casting process, therefore energy consumption is made to increase, and add freight, and make the production cycle elongated, improve the production cost of factory.
Summary of the invention
In order to solve current steel mill (or aluminium metallurgy factory) and metal parts processing (especially die forging processing or roll forging processing or seamless steel pipe processing)
An object of the present invention is to provide a kind of continuous casting forming processing method for metal, it comprises the steps:
I) meet the liquid metal of required condition by furnace is modified and liquid metal is put into tundish;
Ii) crystallizer is utilized to receive the liquid metal from tundish and liquid metal is condensed into metal base;
Iii) withdrawal straightening machine is utilized to be pulled out by the metal base in crystallizer and align;
It is characterized in that comprising the following steps:
Metal base from withdrawal straightening machine out after direct shear metal base cut into the blank of required size, then die forging is directly carried out to described blank or roll forging processing makes described blank forming be the product of required size and shape, or perforation is carried out to described blank process to form seamless pipe.
According to one embodiment of present invention, the step of described steel-making (or alloy etc. of aluminium or steel or aluminium) is by the modified liquid metal meeting required condition of refining furnace.
According to another embodiment of the invention, described steel-making (or alloy etc. of aluminium or steel or aluminium) step comprises smelting, refining secondary step with the modified liquid metal meeting required condition.That is, first by smelting furnace (such as blast furnace, converter etc.), metal is slightly refined, and then undertaken by refining furnace that refining batch is modified makes it reach required requirement.
Preferably, the metal described in the present invention is steel, iron or aluminium or ferroalloy or aluminium alloy, steel pipe etc.
Preferably, continuous casting forming processing method of the present invention also comprises and carries out to each step the policer operation that situation and rhythm carry out monitoring in real time.Like this, just can make counte-rplan in time to the bursting problem that links in production process occurs, the adjustment production schedule, ensure to produce and carry out smoothly.
According to a further aspect in the invention, provide a kind of continuous casting forming process equipment for metal, it comprises: furnace, in order to the modified liquid metal meeting required condition; Tundish, it holds by the modified liquid metal of furnace; Crystallizer, is condensed into metal base by liquid metal for the liquid metal that receives from tundish; Withdrawal straightening machine, pulls out the metal base in crystallizer and aligns; Characterized by further comprising:
Shear, it is set directly at the downstream of withdrawal straightening machine, for metal base out from withdrawal straightening machine being cut into the blank of required size; And comprise:
For by described blank forming being the die forging device of product or the roll forging device of required size or shape, or for carrying out perforation processing to described blank with the punching machine forming seamless pipe.
Preferably, continuous casting forming process equipment of the present invention also comprises and carries out to each step the monitoring system that situation and rhythm carry out monitoring in real time.
According to the continuous casting forming processing method for metal of the present invention, due in pipelined fashion the metal base being in high temperature is cut off into after continuous casting suitable dimension blank and direct to blank carry out die forging processing or roll forging processing and produce satisfactory product, thus the blank (square billet, excellent base or slab etc.) obtained after not needing again to continuous casting before die forging and roll forging heats the operation with base, again because this reducing energy consumption.Do not need the blank obtained by continuous casting put in storage again or transport, shorten the production cycle, improve production efficiency, therefore saved production cost largely yet.
Accompanying drawing explanation
The present invention is described with reference to appended schematic diagram, and wherein, in all of the figs, identical Reference numeral relates to identical part, and wherein:
Fig. 1 is existing such as the side view of the continuous casting forming equipment of bar.
Fig. 2 is the flow chart of an embodiment according to the continuous casting forming processing method for metal of the present invention.
Detailed description of the invention
Fig. 2 is the flow chart of an embodiment according to the continuous casting forming processing method for metal of the present invention.
Step S10 in Fig. 2 represents steel-making step, and it can by the electric-arc furnace steelmaking, middle frequency furnace etc. with steel scrap being mainly raw material.Also can be blast furnace slightly smelt, concise.For pneumatic steelmaking, preferably carry out second metallurgy (also claiming refining) for from converter molten steel out.That is, the steel-making step of S10 can refer to only once makes steel step, also can be to comprise smelting and the secondary of refining makes steel step.
In prior art, the liquid steel obtaining suiting the requirements through steel-making step S10 is transported to panoramic table usually, and molten steel is injected tundish after turning to pouring position by panoramic table.Molten steel to be assigned in each crystallizer by molten steel mouth and to go by tundish again.
Step S20 in Fig. 2 utilizes crystallizer receive the liquid metal from tundish and liquid metal is condensed into metal base.Fig. 1 is existing such as the side view of the continuous casting forming equipment of bar, and wherein Reference numeral 1 represents the crystallizer in existing continuous casting installation for casting.Shape and size feature according to the product of (die forging or roll forging) to be processed can select suitable crystallizer.That is, any existing crystallizer, such as, in continuous casting forming process equipment all used in the present invention such as crystallizing evaporator, cooler crystallizer etc.
Step S30 in Fig. 2 utilizes withdrawal straightening machine pulled out by the metal base in crystallizer and align.Reference numeral 2 in Fig. 1 represents withdrawal straightening machine.Shape and size feature according to the product of (die forging or roll forging) to be processed can select suitable withdrawal straightening machine.That is, in any existing withdrawal straightening machine continuous casting forming process equipment all used in the present invention.
Step S40 in Fig. 2 be metal base from withdrawal straightening machine out after direct shear metal base cut into the blank of required size.Need to use hot shearing machine in step S40 of the present invention, that is, at high temperature metal base is cut into the blank of required size.
Step S50 in Fig. 2 be after metal base is cut into metal blank immediately to described blank carry out die forging or roll forging processing make it be shaped to the product of required size and shape.According to another embodiment of the present invention, metal base is pipe, and in this embodiment, step S50 carries out perforation processing with the process forming seamless pipe to pipe part immediately after For Bloom-shearing is become pipe part.
According to the present invention, in pipelined fashion the metal base being in high temperature is cut off into after continuous casting suitable dimension blank and direct to blank carry out die forging processing or roll forging processing and produce satisfactory product, or after For Bloom-shearing is become pipe part immediately to pipe part carry out perforation process to form seamless pipe.
Therefore, continuous casting forming processing method according to the present invention is the pipelining of production logistics integration.In order to ensure that production logistics continuous high-efficient operates, need to make logistics and information flow synchronous as far as possible.Therefore the best specific requirement according to each customer order (product produced), carry out special logistics design, tissue is produced.
Therefore the planning system of steel smelting-continuous casting-shearing-die forging (or roll forging or perforation) integration is preferably set up.The rhythm of production of steel-making, continuous casting should be taken into full account when setting up planning system, also need to consider to shear, the rhythm of production of die forging or roll forging or perforation, by production control, the information of each production link is gathered common management, to coordinate production rhythm, ensure steel smelting-continuous casting-shearing, seamless connection that die forging (or roll forging or perforation) operates.
In addition, preferably set up real-time monitoring task and carry out situation, in time counte-rplan are made to bursting problem, the adjustment production schedule, ensure to produce and carry out smoothly.
The present invention is used for the continuous casting forming processing method that the continuous casting forming processing method of metal is not limited only to steel, and it also may be used for continuous casting forming processing, and the processing and fabricating of steel pipe of aluminum products or ferroalloy goods or Al-alloy products.
Be included in above-mentioned explanation or all scenario illustrated in the accompanying drawings; should be only interpreted as illustrative rather than restrictive, when the various changes carried out for the above embodiment of the present invention, modification, amendment and equivalence are arranged on and do not depart from the subject or scope of the present invention all in protection scope of the present invention.
Claims (8)
1., for a continuous casting forming processing method for ferroalloy, it comprises the steps:
I) meet the Molten Ferroalloys of required condition by furnace is modified and Molten Ferroalloys is put into tundish;
Ii) crystallizer is utilized to receive the Molten Ferroalloys from tundish and Molten Ferroalloys is condensed into ferroalloy base;
Iii) utilize withdrawal straightening machine that the ferroalloy base in crystallizer is pulled out and aligned;
It is characterized in that comprising the following steps:
Ferroalloy base from withdrawal straightening machine out after direct shear ferroalloy base cut into the blank of required size, then die forging is directly carried out to described blank or roll forging makes it be shaped to the product of required size and shape.
2. the continuous casting forming processing method for ferroalloy according to claim 1, wherein said step I) be by the modified Molten Ferroalloys meeting required condition of refining furnace.
3. the continuous casting forming processing method for ferroalloy according to claim 2, wherein smelted ferroalloy before described refining furnace refining.
4. the continuous casting forming processing method for ferroalloy according to claim 1 and 2, wherein also comprise to each step carry out situation and rhythm is monitored in real time.
5., for a continuous casting forming process equipment for ferroalloy, it comprises:
Furnace, in order to meet the Molten Ferroalloys of required condition after modified;
Tundish, it holds by the modified Molten Ferroalloys of furnace;
Crystallizer, is condensed into ferroalloy base by Molten Ferroalloys for the Molten Ferroalloys that receives from tundish;
Withdrawal straightening machine, pulls out the ferroalloy base in crystallizer and aligns;
Characterized by further comprising:
Shear, it is set directly at the downstream of withdrawal straightening machine, for being cut off by ferroalloy base out from withdrawal straightening machine; And comprise:
Die forging device or roll forging device or punching machine, it is set directly at the downstream of shear, for directly being carried out die forging by the ferroalloy base cut off or roll forging makes it be shaped to the product of required size and shape.
6. continuous casting forming process equipment according to claim 5, wherein said furnace is refining furnace.
7. continuous casting forming process equipment according to claim 5, wherein said furnace comprises both smelting furnace and refining furnace simultaneously and unifies.
8. the continuous casting forming process equipment for ferroalloy according to claim 5 or 6, wherein also comprises and carries out to each step the monitoring system that situation and rhythm carry out monitoring in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532953.3A CN103157771B (en) | 2011-12-12 | 2012-12-12 | For continuous casting forming process equipment and the method for metal |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104380434 | 2011-12-12 | ||
| CN201110438043.4 | 2011-12-12 | ||
| CN201110438043 | 2011-12-12 | ||
| CN201210532953.3A CN103157771B (en) | 2011-12-12 | 2012-12-12 | For continuous casting forming process equipment and the method for metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103157771A CN103157771A (en) | 2013-06-19 |
| CN103157771B true CN103157771B (en) | 2015-07-29 |
Family
ID=48581594
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220686323.7U Expired - Lifetime CN203791594U (en) | 2011-12-12 | 2012-12-12 | Metal continuous-casting forming equipment |
| CN201210532953.3A Active CN103157771B (en) | 2011-12-12 | 2012-12-12 | For continuous casting forming process equipment and the method for metal |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220686323.7U Expired - Lifetime CN203791594U (en) | 2011-12-12 | 2012-12-12 | Metal continuous-casting forming equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN203791594U (en) |
| WO (1) | WO2013086881A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086881A1 (en) * | 2011-12-12 | 2013-06-20 | Xie Zhaozong | Machining equipment and method for continuous metal casting |
| CN104624989A (en) * | 2013-11-11 | 2015-05-20 | 谢兆宗 | Continuous casting formation machining device and method used for metal |
| CN107855362A (en) * | 2017-12-15 | 2018-03-30 | 王振云 | A kind of full-automatic continuous casting even pricks preforming press |
| CN110512061B (en) * | 2019-09-27 | 2020-12-01 | 江阴华润制钢有限公司 | Process method for producing die steel by directly forging continuous casting billet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3810507A (en) * | 1969-05-30 | 1974-05-14 | Voest Ag | Continuous casting plant for slabs |
| CN1072063C (en) * | 1996-07-17 | 2001-10-03 | 蓬塔穆松公司 | Pouring table die block positioning device for an uphill vertical continuous casting machine |
| CN1350894A (en) * | 2001-10-27 | 2002-05-29 | 李国安 | Pipe blank continuous casting machine |
| CN201978963U (en) * | 2010-12-03 | 2011-09-21 | 金川集团有限公司 | Horizontal continuous casting-rolling-annealing-stretching equipment for yellow brass alloy condensation pipe |
| CN203791594U (en) * | 2011-12-12 | 2014-08-27 | 谢兆宗 | Metal continuous-casting forming equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0669605B2 (en) * | 1986-02-15 | 1994-09-07 | 新日本製鐵株式会社 | A method for directly producing a thin metal plate from a slab |
| DE3606507A1 (en) * | 1986-02-28 | 1987-09-10 | Mannesmann Ag | METHOD FOR PRODUCING ROLLING PRE-MATERIAL BY CONTINUOUSLY FOR LONG PRODUCTS MADE OF METAL, ESPECIALLY STEEL |
| JPH0628787B2 (en) * | 1988-06-03 | 1994-04-20 | 川崎製鉄株式会社 | Large reduction method of slab strand in continuous casting |
| EP0764063B1 (en) * | 1994-06-16 | 1999-02-03 | MANNESMANN Aktiengesellschaft | Method of producing a seamless hot-finished tube |
| WO2011052708A1 (en) * | 2009-10-30 | 2011-05-05 | 昭和電工株式会社 | Method for producing near-net-shape material for engine piston |
-
2012
- 2012-09-26 WO PCT/CN2012/082052 patent/WO2013086881A1/en active Application Filing
- 2012-12-12 CN CN201220686323.7U patent/CN203791594U/en not_active Expired - Lifetime
- 2012-12-12 CN CN201210532953.3A patent/CN103157771B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3810507A (en) * | 1969-05-30 | 1974-05-14 | Voest Ag | Continuous casting plant for slabs |
| CN1072063C (en) * | 1996-07-17 | 2001-10-03 | 蓬塔穆松公司 | Pouring table die block positioning device for an uphill vertical continuous casting machine |
| CN1350894A (en) * | 2001-10-27 | 2002-05-29 | 李国安 | Pipe blank continuous casting machine |
| CN201978963U (en) * | 2010-12-03 | 2011-09-21 | 金川集团有限公司 | Horizontal continuous casting-rolling-annealing-stretching equipment for yellow brass alloy condensation pipe |
| CN203791594U (en) * | 2011-12-12 | 2014-08-27 | 谢兆宗 | Metal continuous-casting forming equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013086881A1 (en) | 2013-06-20 |
| CN103157771A (en) | 2013-06-19 |
| CN203791594U (en) | 2014-08-27 |
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Effective date of registration: 20180402 Address after: 067300, Chengde, Hebei Province, XingLong Town Railway Station opposite the platform Patentee after: Hebei Shouding Metal Products Co., Ltd. Address before: 067300, Hebei Province, Chengde City, Guangdong Province, Dongguan warm home district 4, Room 102 Patentee before: Xie Zhaozong |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 067399 Room 102, Building 10, Emperor Junbieyuan, 39 Warm Hutong, Xinglong Town, Chengde City, Hebei Province Patentee after: Hebei Shouding Metal Materials Co., Ltd. Address before: 067300 opposite Xinglong Town Railway Station, Xinglong County, Chengde City, Hebei Province Patentee before: Hebei Shouding Metal Products Co., Ltd. |