CN113477888A - Gating system for sand casting - Google Patents
Gating system for sand casting Download PDFInfo
- Publication number
- CN113477888A CN113477888A CN202110707638.9A CN202110707638A CN113477888A CN 113477888 A CN113477888 A CN 113477888A CN 202110707638 A CN202110707638 A CN 202110707638A CN 113477888 A CN113477888 A CN 113477888A
- Authority
- CN
- China
- Prior art keywords
- pouring
- ring
- pipe
- basin
- casting
- 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.)
- Pending
Links
- 238000007528 sand casting Methods 0.000 title claims abstract description 13
- 238000005266 casting Methods 0.000 claims abstract description 39
- 239000002893 slag Substances 0.000 claims abstract description 19
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 235000013372 meat Nutrition 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
Images
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
-
- 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
- B22C9/086—Filters
Abstract
The invention discloses a pouring system for sand casting, which comprises a pouring basin, a pouring pipe and a pouring ring, wherein the pouring basin is arranged in the pouring basin; the pouring basin is of a box body structure with an opening at the upper end, a slag trap extending vertically is arranged on the inner wall of the pouring basin, and the slag trap divides the inner cavity of the pouring basin into a settling area and a pouring area; the pouring tube consists of a vertical pouring tube and a horizontal pouring tube which are vertically connected, and an upper pouring long hole is formed in the lower side of the tail end of the horizontal pouring tube; the casting ring is an open-ring-shaped part with a hollow interior, a lower casting long hole is formed in the upper side ring wall of the casting ring, and inner casting pipes communicated with the hollow inner cavity are uniformly distributed on the inner ring surface of the casting ring; the upper end of a vertical pouring tube in the pouring tube is connected with the pouring hole of the pouring basin, and an upper pouring long hole at the tail end of a horizontal pouring tube in the pouring tube is connected with a lower pouring long hole of the pouring ring. The pouring system has multiple deslagging and impact-resistant effects, and prevents the phenomenon of meat deficiency of castings caused by the cleaning process.
Description
Technical Field
The invention relates to a pouring system for sand casting, and belongs to the technical field of casting.
Background
The existing high-chromium iron casting is usually made by simply using a ceramic pipe as a sprue, and the ceramic pipe is directly connected with the casting or connected with a riser and then connected with the casting. The method has the disadvantages that the pure ceramic pipe is connected with the casting, so that slag can not be collected on the molten steel, and the casting is easy to be out of meat in the cleaning process; the ceramic pipe is connected with the riser and then connected with the casting, although a certain slag collecting effect is achieved, molding sand at the position of the riser is overheated, so that the defects of sand inclusion, air holes and the like easily occur at the joint of the riser and the casting, the casting is easy to be starved in the cleaning process, and meanwhile, the ceramic pipe is directly connected with the casting or connected with the riser and then connected with the casting, so that the heat-saving modulus of the casting is increased, and hot cracks are easily generated at the joint.
Disclosure of Invention
The invention aims to provide a pouring system for sand casting, which has the functions of slag collection and filtration and can prevent the phenomenon of meat deficiency of castings in the cleaning process.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a pouring system for sand casting, which comprises a pouring basin, a pouring pipe and a pouring ring, wherein the pouring basin is provided with a pouring opening;
the pouring basin is of a box body structure with an opening at the upper end, a slag trap extending vertically is arranged on the inner wall of the pouring basin, the inner cavity of the pouring basin is divided into a settling area and a pouring area by the slag trap, and a circulation gap is reserved between the bottom of the slag trap and the bottom surface of the pouring basin; a pouring hole is formed in the bottom surface of the lower end of the pouring area;
the pouring pipe consists of a vertical pouring pipe and a horizontal pouring pipe which are vertically connected, the vertical pouring pipe is a straight pipe the inner diameter of which is matched with the diameter of the pouring hole on the bottom surface of the pouring basin, the horizontal pouring pipe is a fan-shaped pipeline which horizontally expands outwards from the tail end of the vertical pouring pipe, and the lower side of the tail end of the horizontal pouring pipe is provided with an upper pouring long hole; a downward sunken pouring buffer pit is arranged on the lower side of the starting end of the horizontal pouring pipe in the pouring pipe, and the inner shape of the pouring buffer pit is a hemispherical structure; the upper side of the tail end of a horizontal pouring pipe in the pouring pipe is provided with a pouring buffer cavity protruding upwards, and the length and the width of the pouring buffer cavity are matched with those of an upper pouring long hole of the horizontal pouring pipe;
the casting ring is an open-ring-shaped part with a hollow interior, a lower casting long hole communicated with the hollow inner cavity is formed in the upper side ring wall of the casting ring, and the distance between the two ends of the lower casting long hole and the opening end of the casting ring is equal; inner pouring pipes communicated with the hollow inner cavity are uniformly distributed on the inner annular surface of the pouring ring, each inner pouring pipe is of a sheet structure vertically extending towards the axis of the pouring ring, and an inner pouring gate is arranged at the tail end part of each inner pouring pipe;
the upper end of a vertical pouring tube in the pouring tube is connected with the pouring hole of the pouring basin, and an upper pouring long hole at the tail end of a horizontal pouring tube in the pouring tube is connected with a lower pouring long hole of the pouring ring.
And a foamed ceramic filter screen is arranged at the joint of the upper pouring long hole at the tail end of the horizontal pouring pipe in the pouring pipe and the lower pouring long hole of the pouring ring.
The pouring pipe is made of ceramic materials, the pouring basin and the pouring ring are made of resin sand, and the working surfaces of the pouring basin and the pouring ring are coated with refractory coatings to prevent sand washing.
The communication area of the settling zone and the bottom of the pouring zone in the inner cavity of the pouring basin is larger than the hole section of the pouring hole, so that the molten steel on one side of the pouring zone in the inner cavity of the pouring basin is higher than the flow gap at the lower part of the slag blocking plate.
Advantageous effects
According to the pouring system, the deslagging effect is realized through the pouring basin with the slag blocking plate and the filter screen, the impact resistance effect is realized through the pouring buffer nest and the pouring buffer cavity, slag inclusions entering molten steel are effectively filtered, the purity of the molten steel entering the cavity is improved, and the flow direction of the molten steel entering a casting is effectively controlled. According to the pouring system, the inner pouring pipe is designed on the side face of the casting and is of a vertical slice type, the modulus of the inner pouring gate can be effectively reduced, cracks of the inner pouring gate are prevented, impact of molten steel on a casting mold in the mold filling process is reduced, meanwhile, the vertical inner pouring pipe is the same as the direction of a falling sand casting, and the problem of meat deficiency in the falling sand casting process can be effectively avoided.
Drawings
FIG. 1 is a schematic view of the construction of the gating system of the present invention;
FIG. 2 is a perspective view of the gating system of the present invention;
in the figure: 1-pouring basin; 11-a slag trap; 2-a pouring tube; 21-pouring a buffer pit; 22-pouring a buffer cavity; 3-casting a ring; 31-inner pour tube; 4-foamed ceramic filter screen.
Detailed Description
The present invention will be described in further detail with reference to the following detailed drawings and examples.
Examples
As shown in fig. 1 and 2, the pouring system for sand mold casting of the present invention comprises a pouring basin 1, a pouring pipe 2, and a pouring ring 3;
the pouring basin 1 is of a box body structure with an opening at the upper end, a slag trap 11 extending vertically is arranged on the inner wall of the pouring basin 1, the inner cavity of the pouring basin 1 is divided into a settling area and a pouring area by the slag trap 11, and a circulation gap is reserved between the bottom of the slag trap 11 and the bottom surface of the pouring basin 1; a pouring hole is formed in the bottom surface of the lower end of the pouring area;
the pouring pipe 2 consists of a vertical pouring pipe and a horizontal pouring pipe which are vertically connected, the vertical pouring pipe is a straight pipe the inner diameter of which is matched with the diameter of a pouring hole in the bottom surface of the pouring basin 1, the horizontal pouring pipe is a fan-shaped pipeline which horizontally expands outwards from the tail end of the vertical pouring pipe, and the lower side of the tail end of the horizontal pouring pipe is provided with an upper pouring long hole; a downward sunken pouring buffer pit 21 is arranged on the lower side of the starting end of the horizontal pouring pipe in the pouring pipe 2, and the inner shape of the pouring buffer pit 21 is a hemispherical structure; the upper side of the tail end of a horizontal pouring pipe in the pouring pipe 2 is provided with an upward convex pouring buffer cavity 22, and the length and the width of the pouring buffer cavity 22 are matched with those of an upper pouring long hole of the horizontal pouring pipe;
the casting ring 3 is an open ring-shaped part with a hollow inner part, a lower casting long hole communicated with the hollow inner cavity is formed in the upper side ring wall of the casting ring 3, and the distance between the two ends of the lower casting long hole and the opening end of the casting ring 3 is equal; inner pouring tubes 31 communicated with the hollow inner cavity are uniformly distributed on the annular surface of the inner side of the pouring ring 3, each inner pouring tube 31 is of a sheet structure vertically extending towards the axis of the pouring ring 3, and an inner pouring gate is arranged at the tail end part of each inner pouring tube 31;
the upper end of a vertical pouring tube in the pouring tube 2 is connected with a pouring hole of the pouring basin 1, and an upper pouring long hole at the tail end of a horizontal pouring tube in the pouring tube 2 is connected with a lower pouring long hole of the pouring ring 3.
And a foamed ceramic filter screen 4 is arranged at the joint of the upper pouring long hole at the tail end of the horizontal pouring pipe in the pouring pipe 2 and the lower pouring long hole of the pouring ring 3.
The pouring pipe 2 is made of ceramic materials, the pouring basin 1 and the pouring ring 3 are made of resin sand, and the working surfaces of the pouring basin 1 and the pouring ring 3 are coated with refractory coatings to prevent sand washing.
The communication area of the settling zone and the bottom of the pouring zone in the inner cavity of the pouring basin 1 is larger than the hole section of the pouring hole, so that the molten steel on one side of the pouring zone in the inner cavity of the pouring basin 1 is higher than the flow gap at the lower part of the slag trap.
Claims (5)
1. The utility model provides a gating system for sand casting which characterized by: comprises a pouring basin, a pouring pipe and a pouring ring;
the pouring basin is of a box body structure with an opening at the upper end, a slag trap extending vertically is arranged on the inner wall of the pouring basin, the inner cavity of the pouring basin is divided into a settling area and a pouring area by the slag trap, and a circulation gap is reserved between the bottom of the slag trap and the bottom surface of the pouring basin; a pouring hole is formed in the bottom surface of the lower end of the pouring area;
the pouring pipe consists of a vertical pouring pipe and a horizontal pouring pipe which are vertically connected, the vertical pouring pipe is a straight pipe the inner diameter of which is matched with the diameter of the pouring hole on the bottom surface of the pouring basin, the horizontal pouring pipe is a fan-shaped pipeline which horizontally expands outwards from the tail end of the vertical pouring pipe, and the lower side of the tail end of the horizontal pouring pipe is provided with an upper pouring long hole; a downward sunken pouring buffer pit is arranged on the lower side of the starting end of the horizontal pouring pipe in the pouring pipe, and the inner shape of the pouring buffer pit is a hemispherical structure; the upper side of the tail end of a horizontal pouring pipe in the pouring pipe is provided with a pouring buffer cavity protruding upwards, and the length and the width of the pouring buffer cavity are matched with those of an upper pouring long hole of the horizontal pouring pipe;
the casting ring is an open-ring-shaped part with a hollow interior, a lower casting long hole communicated with the hollow inner cavity is formed in the upper side ring wall of the casting ring, and the distance between the two ends of the lower casting long hole and the opening end of the casting ring is equal; inner pouring pipes communicated with the hollow inner cavity are uniformly distributed on the inner annular surface of the pouring ring, each inner pouring pipe is of a sheet structure vertically extending towards the axis of the pouring ring, and an inner pouring gate is arranged at the tail end part of each inner pouring pipe;
the upper end of a vertical pouring tube in the pouring tube is connected with the pouring hole of the pouring basin, and an upper pouring long hole at the tail end of a horizontal pouring tube in the pouring tube is connected with a lower pouring long hole of the pouring ring.
2. A gating system for sand casting according to claim 1, wherein: and a foamed ceramic filter screen is arranged at the joint of the upper pouring long hole at the tail end of the horizontal pouring pipe in the pouring pipe and the lower pouring long hole of the pouring ring.
3. A gating system for sand casting according to claim 1 or 2, wherein: the pouring tube is made of ceramic materials.
4. A gating system for sand casting according to claim 1 or 2, wherein: the pouring basin and the pouring ring are made of resin sand, and the working surfaces of the pouring basin and the pouring ring are coated with refractory paint.
5. A gating system for sand casting according to claim 1 or 2, wherein: and the communication area of the settling zone in the inner cavity of the pouring basin and the bottom of the pouring zone is larger than the hole section of the pouring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110707638.9A CN113477888A (en) | 2021-06-24 | 2021-06-24 | Gating system for sand casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110707638.9A CN113477888A (en) | 2021-06-24 | 2021-06-24 | Gating system for sand casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113477888A true CN113477888A (en) | 2021-10-08 |
Family
ID=77936052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110707638.9A Pending CN113477888A (en) | 2021-06-24 | 2021-06-24 | Gating system for sand casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113477888A (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH624321A5 (en) * | 1977-12-05 | 1981-07-31 | Concast Ag | Method and apparatus for starting a strand in a continuous casting installation for steel with a plurality of strands |
| JPH0952143A (en) * | 1995-08-10 | 1997-02-25 | Mitsubishi Motors Corp | Casting device |
| CN102205396A (en) * | 2011-04-25 | 2011-10-05 | 日月重工股份有限公司 | Gating system for stamping cylinder |
| US20110309115A1 (en) * | 2010-06-18 | 2011-12-22 | International Engine Intellectual Property Company Llc | Direct side pour riser sleeve |
| CN104815964A (en) * | 2015-04-30 | 2015-08-05 | 共享装备有限公司 | Gating system capable of solving inner runner inflow unevenness |
| CN204724802U (en) * | 2015-06-30 | 2015-10-28 | 四川德恩精工科技股份有限公司 | Based on the belt pulley blank casting mould of symmetric form ingate |
| CN204934590U (en) * | 2015-09-29 | 2016-01-06 | 山东龙马重科有限公司 | The novel cup of a kind of large-scale wind electricity foundry goods |
| CN105798238A (en) * | 2016-06-02 | 2016-07-27 | 四川南车共享铸造有限公司 | Bottom gating system of cylinder cover |
| CN106734936A (en) * | 2016-11-25 | 2017-05-31 | 鞍钢重型机械有限责任公司 | The compound core of a kind of circular cooler trolley casting method and its casting |
| CN207043278U (en) * | 2017-08-09 | 2018-02-27 | 日月重工股份有限公司 | The casting system of wind power gear cover plate transparent cover casting |
| CN207255168U (en) * | 2017-07-20 | 2018-04-20 | 河北工业大学 | A kind of casting system of elimination ZG35 valve castings defects |
| CN108176818A (en) * | 2017-11-20 | 2018-06-19 | 上海圣德曼铸造海安有限公司 | The sand mould structure of automobile driving system differential casing |
| CN109093074A (en) * | 2018-10-22 | 2018-12-28 | 天津宝信铸造股份有限公司 | Vehicle compressor cabinet and its homogeneous material manufacturing process |
| CN109773132A (en) * | 2019-03-04 | 2019-05-21 | 广东中天创展球铁有限公司 | A kind of cast condition ductile iron mill and its running gate system and production technology |
| CN209110112U (en) * | 2018-08-17 | 2019-07-16 | 江苏万力机械股份有限公司 | A kind of disc-like casting styling apparatus |
| CN110039007A (en) * | 2019-05-05 | 2019-07-23 | 合肥江淮铸造有限责任公司 | A kind of cylinder casting running gate system |
| CN110064733A (en) * | 2019-03-11 | 2019-07-30 | 盐城奥通特思克铸业有限公司 | A kind of castings production running gate system |
| CN211248213U (en) * | 2019-12-26 | 2020-08-14 | 林州市全成机械铸造有限公司 | Flywheel pouring device |
| CN112296269A (en) * | 2020-10-19 | 2021-02-02 | 安徽省含山县富坤铸造厂 | Movable tilting ring casting machine |
| CN112517852A (en) * | 2020-11-30 | 2021-03-19 | 襄阳五二五泵业有限公司 | Lever-driven slag-stopping pouring cup |
| CN212945301U (en) * | 2020-07-10 | 2021-04-13 | 四川天奇永大机械制造有限公司 | Annular casting pouring gate system |
| CN213257065U (en) * | 2020-08-13 | 2021-05-25 | 贵州安吉航空精密铸造有限责任公司 | A shunt for being directed at casting mould pouring alloy liquid |
| CN215315530U (en) * | 2021-06-24 | 2021-12-28 | 襄阳五二五泵业有限公司 | Prevent gating system of foundry goods starvation |
-
2021
- 2021-06-24 CN CN202110707638.9A patent/CN113477888A/en active Pending
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH624321A5 (en) * | 1977-12-05 | 1981-07-31 | Concast Ag | Method and apparatus for starting a strand in a continuous casting installation for steel with a plurality of strands |
| JPH0952143A (en) * | 1995-08-10 | 1997-02-25 | Mitsubishi Motors Corp | Casting device |
| US20110309115A1 (en) * | 2010-06-18 | 2011-12-22 | International Engine Intellectual Property Company Llc | Direct side pour riser sleeve |
| CN102205396A (en) * | 2011-04-25 | 2011-10-05 | 日月重工股份有限公司 | Gating system for stamping cylinder |
| CN104815964A (en) * | 2015-04-30 | 2015-08-05 | 共享装备有限公司 | Gating system capable of solving inner runner inflow unevenness |
| CN204724802U (en) * | 2015-06-30 | 2015-10-28 | 四川德恩精工科技股份有限公司 | Based on the belt pulley blank casting mould of symmetric form ingate |
| CN204934590U (en) * | 2015-09-29 | 2016-01-06 | 山东龙马重科有限公司 | The novel cup of a kind of large-scale wind electricity foundry goods |
| CN105798238A (en) * | 2016-06-02 | 2016-07-27 | 四川南车共享铸造有限公司 | Bottom gating system of cylinder cover |
| CN106734936A (en) * | 2016-11-25 | 2017-05-31 | 鞍钢重型机械有限责任公司 | The compound core of a kind of circular cooler trolley casting method and its casting |
| CN207255168U (en) * | 2017-07-20 | 2018-04-20 | 河北工业大学 | A kind of casting system of elimination ZG35 valve castings defects |
| CN207043278U (en) * | 2017-08-09 | 2018-02-27 | 日月重工股份有限公司 | The casting system of wind power gear cover plate transparent cover casting |
| CN108176818A (en) * | 2017-11-20 | 2018-06-19 | 上海圣德曼铸造海安有限公司 | The sand mould structure of automobile driving system differential casing |
| CN209110112U (en) * | 2018-08-17 | 2019-07-16 | 江苏万力机械股份有限公司 | A kind of disc-like casting styling apparatus |
| CN109093074A (en) * | 2018-10-22 | 2018-12-28 | 天津宝信铸造股份有限公司 | Vehicle compressor cabinet and its homogeneous material manufacturing process |
| CN109773132A (en) * | 2019-03-04 | 2019-05-21 | 广东中天创展球铁有限公司 | A kind of cast condition ductile iron mill and its running gate system and production technology |
| CN110064733A (en) * | 2019-03-11 | 2019-07-30 | 盐城奥通特思克铸业有限公司 | A kind of castings production running gate system |
| CN110039007A (en) * | 2019-05-05 | 2019-07-23 | 合肥江淮铸造有限责任公司 | A kind of cylinder casting running gate system |
| CN211248213U (en) * | 2019-12-26 | 2020-08-14 | 林州市全成机械铸造有限公司 | Flywheel pouring device |
| CN212945301U (en) * | 2020-07-10 | 2021-04-13 | 四川天奇永大机械制造有限公司 | Annular casting pouring gate system |
| CN213257065U (en) * | 2020-08-13 | 2021-05-25 | 贵州安吉航空精密铸造有限责任公司 | A shunt for being directed at casting mould pouring alloy liquid |
| CN112296269A (en) * | 2020-10-19 | 2021-02-02 | 安徽省含山县富坤铸造厂 | Movable tilting ring casting machine |
| CN112517852A (en) * | 2020-11-30 | 2021-03-19 | 襄阳五二五泵业有限公司 | Lever-driven slag-stopping pouring cup |
| CN215315530U (en) * | 2021-06-24 | 2021-12-28 | 襄阳五二五泵业有限公司 | Prevent gating system of foundry goods starvation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103990787B (en) | A kind of for removing the device and method of molten steel inclusion in continuous casting production | |
| CN207255168U (en) | A kind of casting system of elimination ZG35 valve castings defects | |
| CN103862014A (en) | Refining device and method for removing liquid steel inclusions in continuous casting tundish | |
| CN215315530U (en) | Prevent gating system of foundry goods starvation | |
| CN206605009U (en) | Annular cast running gate system | |
| CN103990772B (en) | A kind of metallurgical plant removing double flow tray billet continuous casting machine tundish inclusion | |
| CN206200080U (en) | Running gate system | |
| CN113564309A (en) | Tundish with function of removing molten steel inclusions by blowing argon | |
| CN113477888A (en) | Gating system for sand casting | |
| CN105562610A (en) | Casting all-ceramic pouring mechanism | |
| CN203804183U (en) | Refining device for removal slag inclusions in molten steel in continuous casting tundish | |
| CN208743624U (en) | A kind of knitting machine main plate running gate system | |
| CN101422809B (en) | Shrinkage compensation method of hollow cast | |
| CN110666106A (en) | Pouring system and method for oil cylinder | |
| CN113828735B (en) | Pouring system and investment casting process of high-temperature alloy elbow | |
| CN213613956U (en) | Casting mold and casting | |
| CN210789135U (en) | Pouring and feeding system for casting cast steel support | |
| CN110586872B (en) | Casting system of hollow slab steel casting for valve and design method thereof | |
| CN210172516U (en) | Tool and die for producing square vacuum ingot | |
| CN203956070U (en) | A kind of for removing the device of molten steel field trash in continuous casting tundish | |
| CN206028651U (en) | Be used for resistant as cast pouring basin structure of heat -insulating material | |
| CN207982252U (en) | Wheel disc mold | |
| CN209349470U (en) | Horizontal continuous casting of copper alloy converter device | |
| CN206689418U (en) | A kind of square billet submersed nozzle | |
| CN110171055A (en) | Twin-core integral air brick and preparation method thereof, method for constructing bottom of steel ladle |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211008 |
|
| WD01 | Invention patent application deemed withdrawn after publication |