CN107321924A - A kind of semi-portable double cast gate basin combining structure and combinations thereof application method - Google Patents
A kind of semi-portable double cast gate basin combining structure and combinations thereof application method Download PDFInfo
- Publication number
- CN107321924A CN107321924A CN201710383909.3A CN201710383909A CN107321924A CN 107321924 A CN107321924 A CN 107321924A CN 201710383909 A CN201710383909 A CN 201710383909A CN 107321924 A CN107321924 A CN 107321924A
- Authority
- CN
- China
- Prior art keywords
- basin
- pouring basin
- pouring
- cast gate
- liquid
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of semi-portable double cast gate basin combining structure used in casting technology field during casting and pouring and combinations thereof application method, the semi-portable double cast gate basin combining structure of the present invention, including the first pouring basin and the second pouring basin being placed in above sand mold, the first cast gate basin bottom part is provided with liquid outlet, the second cast gate basin bottom part is provided with inlet and liquid outlet, the liquid outlet of first pouring basin is connected with the inlet of the second pouring basin by the U being embedded in advance in sand mold, and the liquid outlet of second pouring basin is connected with the sprue of sand mold.In the pouring basin structure of the present invention, first pouring basin is used for the potting syrup that direct access casting ladle is toppled over, the potting syrup flows into the second pouring basin through U with the flow velocity for comparing relatively low, thus the turbulent region in pouring basin is separated with cast advection area, so that overcome in pouring basin because of the turbulent flow can not pushing off the slag and the problem of skimming.
Description
Technical field
The semi-portable double cast gate basin combination used during a kind of of the invention and casting technology field, more particularly to casting and pouring
Structure and combinations thereof application method.
Background technology
Pouring basin is arranged on the sand mold of heavy castings, for access from the structure for pouring the potting syrup wrapped.Routine side
Method is typically made using the founding of pouring basin mould, and inner surface intensity and heat resistance are all relatively low, are intended for single use, cost is higher.
In the prior art, notification number is the patent specification of the A of CN 103506579 entitled " a kind of pouring basin ", is retouched
A kind of scheme of reused semi-portable pouring basin has been stated, using refractory material brick work inside steel framework, and it is auxiliary
Help and repeatedly using for pouring basin is realized with ceramic water oral pit, and simplify the maintenance of pouring basin.This form pouring basin is solved
The problem of being used for multiple times, but bring than the more serious miscellaneous problem of slag.Due to non-from the molten metal speed under casting ladle freely falling body
Chang Gao, causes turbulent flow in the type pouring basin of pond, splashing, volume gas serious, and further results in slag making than more serious, along with casting ladle table
The oxidizing slag in face pours into pouring basin, further brings pouring basin molten metal to be mingled with seriously.On the other hand, single pond of pond type pouring basin
Flat-bottom structure makes this pouring basin not have being mingled with any pushing off the slag, skimming function, molten metal can be with the metal immersion of turbulent flow
Enter die cavity, cause the quality problems being mingled with of casting seriously.
The content of the invention
The present invention in single pond pouring basin cast in the prior art because turbulent flow and can not pushing off the slag, skimming problem and caused by
The problem of casting is mingled with serious, there is provided a kind of semi-portable double cast gate basin combining structure and combinations thereof application method, is poured with overcoming
Can not pushing off the slag and the problem of skimming because of the turbulent flow in mouthful basin.
First purpose of the present invention is to provide a kind of semi-portable double cast gate basin combining structure, including is placed in above sand mold
The first pouring basin and the second pouring basin, the first cast gate basin bottom part is provided with liquid outlet, and the second cast gate basin bottom part is provided with
Inlet and liquid outlet, the liquid outlet of first pouring basin and the inlet of the second pouring basin pass through the U that is embedded in advance in sand mold
Shape passage is connected, and the liquid outlet of second pouring basin is connected with the sprue of sand mold.
In the pouring basin structure of the present invention, using two pouring basins, the first pouring basin topple over for direct access casting ladle and
The potting syrup come, the potting syrup flows into the second pouring basin through U with the flow velocity for comparing relatively low, thus by pouring basin
Interior turbulent region separates with cast advection area, it is to avoid the miscellaneous influence of slag that the turbulent flow of freely falling body is brought when potting syrup is toppled over,
Meanwhile, the potting syrup in influent stream area is consistent with the direction that slag inclusion floats from bottom to top from U inflow direction, so as to obtain more preferably
Scum silica frost effect.
For ease of the installation of pouring basin, the U is the ceramic tube passage being embedded in advance in sand mold, the U-shaped
The a port of passage is docked with the liquid outlet of the first pouring basin, another port and the second pouring basin of the U
Inlet is docked.
For ease of the feed speed in the second pouring basin of control, the sectional area of the U is the 2 of sprue sectional area
~3 times.
For the reuse of pouring basin, first pouring basin and the second pouring basin are semi-portable pouring basin structure,
Including steel outer framework and bottom plate, fire brick layer, the liquid outlet position point of pouring basin are provided with the inside of the housing and on the upside of bottom plate
Be not provided with out liquid well, the inlet position of second pouring basin also is provided with feed liquor well, the feed liquor well with
Go out the in opposite direction of liquid well, and it is corresponding with liquid flow path direction.
Second object of the present invention also provides a kind of side of being applied in combination of above-mentioned semi-portable double cast gate basin combining structure
Method, installs the first pouring basin and the second pouring basin are corresponding with sand mold, is then poured into a mould, by the liquid outlet of the second pouring basin
Blocked by cast gate it is stifled, by casting ladle to the first pouring basin add potting syrup, make potting syrup from the first pouring basin through U stream
Enter the second pouring basin, extracted when the cast liquid level in the second pouring basin rises to 0.6-0.7 times of pouring basin inner chamber total height
Cast gate is stifled to be started to pour into a mould to sprue feed liquor, while adjusting fall liquid speed degree of the casting ladle to the first pouring basin, is kept in two pouring basins
Liquid level it is steady until cast terminates, two pouring basins are moved to the displacement more than U diameter respectively, to disconnect two cast gates
The passage of basin inlet and each liquid outlet.
The pouring procedure of the present invention, potting syrup flows into the second pouring basin from the effect of damming of first pouring basin through U-shaped passage
Afterwards, feed speed is substantially controlled, and turbulence level substantially weakens, and the miscellaneous slag in casting ladle is in the first pouring basin on part
Floating, the slag content that the potting syrup of the second pouring basin is flowed into from bottom liquid outlet is significantly reduced, then through the second pouring basin scum silica frost at
Reason, the slag into sprue is substantially reduced, so that solving existing pouring basin structure potting syrup can not keep off because of heavy turbulence
The problem of slag and slagging-off.
It is during to ensure to carry out quicksand type before the firm installation of double cast gate basin structure, cast, sprue and U is pre-
It is embedded in the relevant position at the top of sand mold；The sprue mouthful and U interface at the top of sand mold are covered each by after sand mold mould assembly
Plastic sheeting, then in each mouth periphery respectively around two to three circle mud bars are placed, then again by the first pouring basin and the second cast gate
Basin, which coordinates, to be installed, and makes the liquid outlet of the second pouring basin and down gate is concentric docks, and makes the inlet and second of the first pouring basin
The liquid outlet of pouring basin respectively with the port of U is concentric docks；And at the top of the cast gate basin bottom part and upper sand mold between fill in and insert
Some wedge-shaped parallels are to ensure that pouring basin is steady.
To improve scum silica frost effect, during cast, the speed of potting syrup is poured into the first pouring basin makes two to pour first quick and back slow, first
Liquid level rapid increase in mouthful basin, pulls out that cast gate is stifled to be started to slow down to the first pouring basin degree of falling liquid speed to protect to after sprue feed liquor
Hold liquid level in two pouring basins steady.
During to avoid casting ladle from starting to topple over potting syrup into the first pouring basin, potting syrup directly carries out U, cast
When, the liquid that fallen into the first pouring basin falls liquid outlet of the liquid o'clock away from the first pouring basin.
Brief description of the drawings
Fig. 1 is the schematic diagram of the semi-portable double cast gate basin combining structure of the present invention.
Wherein, 1 second pouring basin；2 cast gates are blocked up；3 sprues；4 sand molds；5 casting ladles；6 first pouring basins；7 Us；8
Casting die cavity.
Embodiment
Embodiment 1
As shown in figure 1, being the semi-portable double cast gate basin combining structure of the present invention, including it is placed in the first cast gate of the top of sand mold 4
The pouring basin 1 of basin 6 and second, the bottom of the first pouring basin 6 is provided with liquid outlet, and the second cast gate basin bottom part is provided with inlet and liquid outlet,
The liquid outlet of first pouring basin 6 is connected with the inlet of the second pouring basin 1 by the U 7 being embedded in advance in sand mold 4, and second
The liquid outlet of pouring basin 1 is connected with the sprue 3 of sand mold, and sprue 3 is connected by running gate system passage with casting die cavity 8.
In the structure of the present embodiment, for ease of the installation of pouring basin, U 7 is the ceramics being embedded in advance in sand mold 4
Tube passage, a port of the U is docked with the liquid outlet of the first pouring basin 6, another port of U 7 and the
The inlet docking of two pouring basins 1, to connect the first pouring basin and the second pouring basin；For ease of controlling entering to the second pouring basin
Liquid speed degree, the sectional area of U 7 is 2~3 times of the sectional area of sprue 3.
The above-mentioned and pouring basin combining structure of the present invention, it is adaptable to, can be direct in the transformation of the pouring basin structure of pool
Transformation is carried out by two pool pouring basins structure of the prior art to use, it is not necessary to change original pouring type and pouring basin
Master what structure.In the present embodiment, for reduction cast cost, make repeatedly using for pouring basin, the first of this implementation pours
Mouth basin 6 and second pouring basin 2 uses the pouring basin knot of semi-portable pouring basin structure, such as A of Publication No. CN 103506579
Fire brick layer, the liquid outlet position point of two pouring basins are provided with the inside of structure, including steel outer framework and bottom plate, housing and on the upside of bottom plate
Liquid well is not provided with out, and the inlet position of the second pouring basin also is provided with feed liquor well, and feed liquor well is with going out liquid cast gate
The identical setting direction of nest structure is on the contrary, and corresponding with liquid flow path direction.
In the above-mentioned pouring basin structure of the present embodiment, using two pouring basins, the first pouring basin 6 is used for direct access casting ladle
5 potting syrups toppled over, the potting syrup flows into the second pouring basin 1 through U 7 with the flow velocity for comparing relatively low, so
Just the turbulent region in pouring basin is separated with cast advection area, it is to avoid the folder that the turbulent flow of freely falling body is brought when potting syrup is toppled over
Slag influences, meanwhile, cast advection area（Refer in the second pouring basin and pour flow liquid）Potting syrup from the inflow direction of U 7 under
And it is upper consistent with slag inclusion floats direction, so as to obtain more preferable scum silica frost effect.Therefore the above-mentioned double cast gate basin group of the present invention
Close the transformation of structure, solve existing pouring basin structure potting syrup because of the heavy turbulence can not pushing off the slag and the problem of slagging-off, improve
The quality and qualification rate of casting.
Embodiment 2
Method is applied in combination for above-mentioned semi-portable double cast gate basin combining structure in the present embodiment, specifically, being flowed before cast
During sand type, by the relevant position that the upper top of sand mold 4 is embedded in U earthenware of sprue 3；By sand after sand mold mould assembly
The interface of sprue 3 at the top of type and the interface of U 7 are covered each by plastic sheeting, are then enclosed respectively in each interface periphery
Mud bar is enclosed around placing two to three, after placing in order to pouring basin around sealed interface, prevents from running away during cast；Then again by first
The pouring basin 1 of pouring basin 6 and second coordinates alignment to be placed on the top of sand mold 3, make during alignment the liquid outlet of the second pouring basin 1 with it is straight
Cast gate is docked with one heart, the inlet of the first pouring basin 6 and the liquid outlet of the second pouring basin 1 is held respectively with two of U 7
Mouth docking with one heart；To make pouring basin steady, filled between cast gate basin bottom part and the top of sand mold 3 and insert some wedge-shaped parallels to prevent cast gate
Basin is rocked.Install after pouring basin, carry out cast preparation, the liquid outlet of the second pouring basin 1 is blocked by cast gate stifled 2, then
Topple over casting ladle 5 and add potting syrup to the first pouring basin 6, potting syrup is flowed into the second cast gate through U 7 from the first pouring basin 6
Basin 1, extracts cast gate stifled 2 when the cast liquid level in the second pouring basin 1 rises to 0.6-0.7 times of pouring basin inner chamber total height
Start to pour into a mould to the feed liquor of sprue 3, while adjusting fall liquid speed degree of the casting ladle 5 to the first pouring basin 6, keep the liquid in two pouring basins
Face is steady to terminate until pouring into a mould, and two pouring basins are moved to the displacement more than U diameter respectively, entered with disconnecting two pouring basins
The passage of liquid mouthful and each liquid outlet, it is to avoid can not move pouring basin after potting syrup solidification.
Enter the second pouring basin to reduce slag inclusion, during cast, potting syrup is poured into the first pouring basin 6, falling liquid point should be remote
From the liquid outlet of the first pouring basin 6, to prevent the turbulent liquid for the slag just fallen to be directly entered U 7；The speed of liquid is by first
Slow section gathers control after fast, first makes the liquid level rapid increase in two pouring basins, when the first pouring basin liquid level rises to pouring basin inner chamber
During 0.6-0.7 times of total height, pull out cast gate stifled 3 and start to after sprue feed liquor, slow down to the degree of falling liquid speed of the first pouring basin 6 with
Keep liquid level in two pouring basins steady.
The pouring procedure of the present invention, potting syrup flows into the second cast gate from the effect of damming of first pouring basin 6 through U-shaped passage 7
After basin 1, feed speed is substantially controlled, and turbulence level substantially weakens, and the miscellaneous slag in casting ladle is inside the first pouring basin 6
Divide and float, slag content is significantly reduced in the potting syrup for flowing into the second pouring basin 1 from bottom liquid outlet, then it is floating through the second pouring basin
Slag treatment, the slag into sprue is substantially reduced, thus solve existing pouring basin structure potting syrup because of heavy turbulence nothing
The problem of method pushing off the slag and slagging-off.
The double cast gate basin structure of the present invention is not limited to above-mentioned embodiment, and the U for connecting double cast gate basin can be with
The interface channel of other structures shape is adjusted to as needed, and the communicating passage can be not only embedded in sand mold, also may be used
What is be separately provided in addition with being embedded in is easy in the sand mould structure of two pouring basins of connection or sand mold position, and above-mentioned improvement is this
The protection domain of invention.
Claims (8)
1. a kind of semi-portable double cast gate basin combining structure, it is characterised in that including the first pouring basin for being placed in above sand mold and
Second pouring basin, the first cast gate basin bottom part is provided with liquid outlet, and the second cast gate basin bottom part is provided with inlet and goes out liquid
Mouthful, the liquid outlet of first pouring basin is connected with the inlet of the second pouring basin by the U being embedded in advance in sand mold, institute
The liquid outlet of the second pouring basin is stated to connect with the sprue of sand mold.
2. semi-portable double cast gate basin combining structure according to claim 1, it is characterised in that the U is to carry
Before be embedded in ceramic tube passage in sand mold, a port of the U is docked with the liquid outlet of the first pouring basin, described
Docked with the inlet of the second pouring basin another port of U.
3. semi-portable double cast gate basin combining structure according to claim 1, it is characterised in that section of the U
Area is 2~3 times of sprue sectional area.
4. semi-portable double cast gate basin combining structure according to claim 1, it is characterised in that first pouring basin and
Second pouring basin is semi-portable pouring basin structure, including steel outer framework and bottom plate, on the inside of the housing and on the upside of bottom plate
Provided with fire brick layer, the liquid outlet position of pouring basin is respectively equipped with out liquid well, the inlet position of second pouring basin
Feed liquor well also is provided with, the feed liquor well is and corresponding with liquid flow path direction with going out the in opposite direction of liquid well.
5. method is applied in combination in a kind of semi-portable double cast gate basin combining structure described in any one of claim 1-4, it is special
Levy and be, install the first pouring basin and the second pouring basin are corresponding with sand mold, then poured into a mould, by going out for the second pouring basin
Liquid mouth is blocked stifled by cast gate, is added potting syrup to the first pouring basin by casting ladle, is made potting syrup logical through U-shaped from the first pouring basin
Road flows into the second pouring basin, when the cast liquid level in the second pouring basin rises to 0.6-0.7 times of pouring basin inner chamber total height
Extract the stifled beginning of cast gate to pour into a mould to sprue feed liquor, while adjusting fall liquid speed degree of the casting ladle to the first pouring basin, keep two cast gates
Liquid level in basin is steady until cast terminates, and two move pouring basin to the displacement more than U diameter respectively, to disconnect two
The passage of pouring basin inlet and each liquid outlet.
6. method is applied in combination in semi-portable double cast gate basin combining structure according to claim 5, it is characterised in that pour
When carrying out quicksand type before note, sprue and U are embedded in the relevant position at the top of upper sand mold；By sand after sand mold mould assembly
Sprue at the top of type mouthful and U interface are covered each by plastic sheeting, then each mouth periphery respectively around place two to
Three circle mud bars, then the first pouring basin and the second pouring basin are coordinated and installed, and make the second pouring basin and liquid outlet with directly pouring again
Mouthful docking with one heart, make the first pouring basin inlet and the second pouring basin port of the liquid outlet respectively with U it is concentric right
Connect；And at the top of the cast gate basin bottom part and upper sand mold between fill in and insert some wedge-shaped parallels to ensure that pouring basin is steady.
7. method is applied in combination in semi-portable double cast gate basin combining structure according to claim 5 or 6, its feature exists
In, during cast, poured into the first pouring basin the speed of potting syrup make first quick and back slow, first the liquid level in two pouring basins it is quick on
Rise, pull out that cast gate is stifled to be started to slow down to after sprue feed liquor to the first pouring basin degree of falling liquid speed to keep liquid level in two pouring basins to put down
Surely.
8. method is applied in combination in semi-portable double cast gate basin combining structure according to claim 5 or 6, its feature exists
During cast, the liquid that fallen into the first pouring basin falls liquid outlet of the liquid o'clock away from the first pouring basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383909.3A CN107321924B (en) | 2017-05-26 | 2017-05-26 | Semi-permanent type double-sprue basin combined structure and combined use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383909.3A CN107321924B (en) | 2017-05-26 | 2017-05-26 | Semi-permanent type double-sprue basin combined structure and combined use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107321924A true CN107321924A (en) | 2017-11-07 |
| CN107321924B CN107321924B (en) | 2020-09-15 |
Family
ID=60193009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710383909.3A Active CN107321924B (en) | 2017-05-26 | 2017-05-26 | Semi-permanent type double-sprue basin combined structure and combined use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107321924B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250662A (en) * | 2020-01-21 | 2020-06-09 | 三鑫重工机械有限公司 | Contact type casting positioning device for castings |
| CN113523194A (en) * | 2021-07-24 | 2021-10-22 | 共享装备股份有限公司 | Staggered pouring structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506579A (en) * | 2013-09-18 | 2014-01-15 | 宁夏共享集团有限责任公司 | Pouring basin |
| CN103537659A (en) * | 2013-11-14 | 2014-01-29 | 宁夏共享集团有限责任公司 | Slag blocking pouring basin |
| CN204052803U (en) * | 2014-07-18 | 2014-12-31 | 天津市宏达铸造厂 | A kind of anti-clogging skim gate basin |
| US20170106434A1 (en) * | 2015-10-15 | 2017-04-20 | GM Global Technology Operations LLC | Method to improve riser feedability for semi-permanent mold casting of cylinder heads |
-
2017
- 2017-05-26 CN CN201710383909.3A patent/CN107321924B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506579A (en) * | 2013-09-18 | 2014-01-15 | 宁夏共享集团有限责任公司 | Pouring basin |
| CN103537659A (en) * | 2013-11-14 | 2014-01-29 | 宁夏共享集团有限责任公司 | Slag blocking pouring basin |
| CN204052803U (en) * | 2014-07-18 | 2014-12-31 | 天津市宏达铸造厂 | A kind of anti-clogging skim gate basin |
| US20170106434A1 (en) * | 2015-10-15 | 2017-04-20 | GM Global Technology Operations LLC | Method to improve riser feedability for semi-permanent mold casting of cylinder heads |
Non-Patent Citations (1)
| Title |
|---|
| 曹瑜强: "《铸造工艺及设备》", 31 January 2008, 机械工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250662A (en) * | 2020-01-21 | 2020-06-09 | 三鑫重工机械有限公司 | Contact type casting positioning device for castings |
| CN111250662B (en) * | 2020-01-21 | 2021-05-25 | 三鑫重工机械有限公司 | Contact type casting positioning device for castings |
| CN113523194A (en) * | 2021-07-24 | 2021-10-22 | 共享装备股份有限公司 | Staggered pouring structure |
| CN113523194B (en) * | 2021-07-24 | 2022-09-06 | 共享装备股份有限公司 | Staggered pouring structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107321924B (en) | 2020-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206622605U (en) | A kind of three machines three stream slab CC tundish | |
| CN101774014B (en) | Tundish with baffle wall for vacuum cast ingot | |
| CN104249149B (en) | A kind of channel-type sensing heating tundish and its casting method | |
| CN207823871U (en) | A kind of 2500LB valves running gate system | |
| CN107321924A (en) | A kind of semi-portable double cast gate basin combining structure and combinations thereof application method | |
| CN104107905A (en) | Slab continuous casting tundish | |
| CN104815961B (en) | A kind of inclined ceramic filter reticulum and use the running gate system of this filter net seat | |
| CN106111906B (en) | It is pressurized anti-slag absorbing pouring basin and preparation method thereof | |
| CN102319885A (en) | Continuous casting method and device for double-nozzle cast ultra-thick plate blank | |
| CN206535993U (en) | Continuous casting flow control molding casting siphon spout device | |
| CN214263877U (en) | Slag-absorbing, filtering and separating slag-stopping wall for tundish | |
| CN205869398U (en) | Sediment runner basin is prevented inhaling in pressure boost | |
| CN102794445B (en) | Slab continuous casting submersed nozzle | |
| KR100907949B1 (en) | The casting sprue for large size thin-thickness aluminum alloy | |
| CN109465396B (en) | Pouring shunting device for pig casting machine | |
| CN108480605A (en) | A kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band | |
| CN101987356A (en) | Transition casting ladle for casting pouring | |
| CN202270954U (en) | Continuous casting device of double-water-gap pouring extra thick slab | |
| CN208555961U (en) | A kind of tundish used for vacuum ingot casting | |
| CN220805419U (en) | Slag-free pouring structure of monocrystalline or directional solidification casting | |
| CN218926164U (en) | Pouring system for casting steel castings by using damp mould sand | |
| CN108380848B (en) | application method of tundish with double-layer annular slag dam for vacuum ingot casting | |
| JPS6343752A (en) | Molten metal vessel providing weir | |
| JP4289476B2 (en) | High cleanliness steel casting method | |
| CN101579731A (en) | System for casting, draining and gating bronze bell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 750000 No. 298 South st street, Yinchuan economic and Technological Development Zone, the Ningxia Hui Autonomous Region, China Applicant after: KOCEL INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 750000 No. 298 South st street, Yinchuan economic and Technological Development Zone, the Ningxia Hui Autonomous Region, China Applicant before: NINGXIA KOCEL MOULD Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |