CN114433810A - 10M3Core iron for pouring casting of rear wall casting of electric bucket - Google Patents

10M3Core iron for pouring casting of rear wall casting of electric bucket Download PDF

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Publication number
CN114433810A
CN114433810A CN202210124917.7A CN202210124917A CN114433810A CN 114433810 A CN114433810 A CN 114433810A CN 202210124917 A CN202210124917 A CN 202210124917A CN 114433810 A CN114433810 A CN 114433810A
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China
Prior art keywords
casting
main
core iron
core
auxiliary
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CN202210124917.7A
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Chinese (zh)
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CN114433810B (en
Inventor
邓庆威
王伟
苏仲明
张树岭
侯卫东
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Mine Machine Manufacture Factory Of Anshan Steel And Iron Corp
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Mine Machine Manufacture Factory Of Anshan Steel And Iron Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention belongs to the technical field of rear wall castings of electric buckets, and particularly relates to a 10M rear wall casting3Core iron for pouring of casting of back wall of electric bucket comprises a bearing beam framework consisting of two main beams and two cross beams, a grid framework consisting of two main webs at two ends, a plurality of auxiliary webs and a plurality of auxiliary beams, and two lifting lugs arranged at two ends of each cross beam. The special core iron is convenient for workers to mold and mould, and improves the production efficiency; the core is placed in the middle core to play a skeleton role, so that the strength of the middle core is improved; the dual functions of the compacted iron and the internal chill are realized; the special core iron and the lower box are locked tightly by the box lock, so that the casting is prevented from lifting the box, and the product percent of pass is improved; the occurrence of gun fire accidents is prevented, the safety risk is reduced, and the safety production is ensured.

Description

10M3Core iron for pouring casting of rear wall of electric bucket
Technical Field
The invention belongs to the technical field of rear wall castings of electric buckets, and particularly relates to a 10M rear wall casting3The core iron is used for casting the casting of the back wall of the electric bucket.
Background
10M of current casting production3The casting of the back wall of the electric bucket adopts a horizontal pouring position, and a horizontal center core is freely placed on a lower box. In the casting process, because the horizontal middle core is greatly lifted by the box lifting force, a large amount of weights (about 40 tons) are placed on the horizontal sand core during box closing. The sand core is prevented from being crushed, and the weight can not be directly placed on the sand core and only can be erected on the sand coreOn the lower box flange, carve the board extrusion tight again between psammitolite and the core iron and be real, so loaded down with trivial details operation, seriously reduce production efficiency, but also have following hidden danger:
1. the weight of each weight is 5 tons, and 8 rectangular weights are required to be placed. Placing so many weights on such a small area of less than 5 square meters places severe space constraints and interferes with the gate location, causing the pouring location to rise.
2. To prevent damage to the core, the nose bars cannot directly contact the core. And a wedge plate is added between the central core and the weight for compaction. The thickness of the wedge plate is not uniform, and it is difficult to prepare a standard wedge plate.
3. A large amount of compacted iron needs to be prepared. The weight can only be welded with the lower box, and the joint is cut after the pouring is finished.
4. The casting is lifted to cause fire accidents, which is not beneficial to safety production.
In combination with the above analysis, the key to solve this problem is how to make the sand core have sufficient strength and rigidity to be connected with the lower box, so that the sand core does not need to be provided with so many weights.
Disclosure of Invention
The invention aims to provide a 10M3The core iron for pouring the casting of the rear wall of the electric bucket can enable the core iron to have enough strength and rigidity, and is clamped with the box closing clamp for the lower box, so that no pressing iron needs to be placed.
The purpose of the invention is realized by the following technical scheme:
10M of the invention3Core iron for pouring of casting of back wall of electric bucket comprises: the device comprises a bearing beam framework consisting of two main beams and two cross beams, a grid framework consisting of two main webs at two ends, a plurality of auxiliary webs arranged between the two main webs and a plurality of auxiliary beams; the lower edge of the main web plate is provided with a flange of 10M3The electric bucket back casting is of an arc structure along with the shape.
Preferably, the lower surface of the lattice frame is provided with an inclined surface.
Preferably, the upper surface of the grid frame is planar.
Preferably, the method further comprises the following steps: and the two lifting lugs are arranged at two ends of each cross beam.
Preferably, the main beam and the secondary beam are parallel to each other, and the main web and the secondary web are parallel to each other.
Preferably, two ends of the auxiliary web plate extend out of the auxiliary beam, and two ends of the auxiliary web plate are provided with arc-shaped edges.
Preferably, the two primary webs comprise a first primary web and a second primary web, the inclined surface being inclined from the first primary web towards the second primary web, the grid arrangement comprising a plurality of grids, the depth of the grids increasing progressively from the first primary web towards the second primary web.
Preferably, the arcuate edge of the secondary web tapers along the inclined face.
Preferably, the main beams, the cross beams, the main webs, the secondary webs and the secondary beams are made of ZG35 materials through annealing treatment.
Preferably, the lifting lug is connected with the lower box through the box-closing clips.
The invention has the beneficial effects that:
10M of the invention3The lower edge of the main web plate of the core iron special for the back wall of the electric bucket is shaped along with the casting center, and the core iron is placed in the center to play a skeleton role and improve the strength of the center; the lower edge of the main web plate adopts an arc-shaped following structure and is integrally arranged in a grid, so that sand can be hung during molding, molding and box closing operations of workers are facilitated, and the production efficiency is improved; the core iron has the dual functions of the weight iron and the internal chill, so that the occurrence of gun fire accidents is prevented, the safety risk is reduced, and the safety production is ensured.
Drawings
FIG. 1 shows 10M in one embodiment of the invention3The structure of the core iron for pouring the casting of the back wall of the electric bucket is schematically shown.
FIG. 2 shows 10M in one embodiment of the invention3Front view of core iron for pouring of casting of back wall of electric bucket.
FIG. 3 shows 10M in one embodiment of the invention3Side view of core iron for casting back wall casting of electric bucket.
Fig. 4 shows a view in direction a of fig. 2.
FIG. 5 shows 10M in one embodiment of the invention3The bottom view structure schematic diagram of the core iron for pouring the casting of the back wall of the electric bucket.
Description of reference numerals:
1. a cross beam; 2. lifting lugs; 3. a main beam; 4. a primary web; 5. a secondary beam; 6. a secondary web.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
10M of the invention3Special core iron of electric bucket back wall includes: the device comprises a bearing beam framework consisting of two main beams and two cross beams, a grid framework consisting of two main webs at two ends, a plurality of auxiliary webs arranged between the two main webs and a plurality of auxiliary beams; the lower edge of the main web plate is provided with a flange of 10M3The electric bucket back casting is of an arc structure along with the shape.
According to the invention, the core iron is placed in the central core, so that the function of a framework is achieved, and the strength of the central core is improved; the lower edge of the main web plate adopts an arc-shaped following structure and is integrally arranged in a grid, so that sand hanging during molding is facilitated, the grid is filled with molding sand at will, and the grid is vibrated to be compact, so that the sand core and the core iron are integrated; the main beam and the cross beam play a role in weighing and supporting; the core iron has a certain weight and has double functions of the weight iron and the internal chill. The molding and mould assembling operations of workers are facilitated, and the production efficiency is improved. The occurrence of gun fire accidents is prevented, the safety risk is reduced, and the safety production is ensured.
Preferably, the lower surface of the grid frame is provided with an inclined surface, so that the grid is filled with molding sand and compacted conveniently, and the sand core and the core iron are integrated.
Preferably, the upper surface of the grid frame is a plane, and the grid frame plays a dual role of the weight and the internal cooling iron.
Preferably, the method further comprises the following steps: the two lifting lugs arranged at two ends of each cross beam are convenient to hoist, and when the box is closed, the four lifting lugs and the sand box are clamped by the box closing clamp, so that the box is prevented from being lifted.
As preferred scheme, girder and auxiliary beam are parallel to each other, and main web is parallel to each other with auxiliary web for the web eats sand volume all around evenly, fills up the molding sand in the grid at will, and simultaneously, the core iron is bulky, reduces the molding sand and consumes.
As preferred scheme, the both ends of vice web stretch out the auxiliary beam, and the both ends of vice web are equipped with the arc edge, and vice web lower limb adopts the arc structure, is favorable to the psammitolite to become integrative with the core iron.
Preferably, the two main webs comprise a first main web and a second main web, the inclined plane is inclined from the first main web to the second main web, the grid structure comprises a plurality of grids, and the depth of the grids is gradually increased from the first main web to the second main web.
Specifically, the depth of the grid gradually increases along the direction from the first main web to the second main web, so that the grid can be filled with molding sand at will.
Preferably, the arc-shaped edge of the auxiliary web plate is gradually reduced along the inclined surface, namely, the arc-shaped edge of the auxiliary web plate is gradually reduced along with the gradual shallow depth of the grid, so that the sand core and the core iron are better integrated.
Preferably, the main beams, the cross beams, the main webs, the auxiliary webs and the auxiliary beams are made of ZG35 material through annealing treatment, and the annealing treatment is stress-free, does not deform and can be used repeatedly.
Preferably, the lifting lug is connected with the lower box through the box-assembling clips.
Specifically, when the core is placed in the mould assembling mode, the main beam is rested on the wall of the lower box, so that the effect of supporting the sand core is achieved, the lifting lugs on two sides of the cross beam and the lower box flange are clamped by the plurality of box clamps, and the box is not lifted by the sand core.
Examples
FIG. 1 shows 10M in one embodiment of the invention3FIG. 2 is a schematic view showing a core iron for casting a back wall casting of an electric bucket, and FIG. 10M is a schematic view showing an embodiment of the present invention3FIG. 3 is a front view of a core iron for casting a back wall casting of an electric bucket, and FIG. 10M shows an embodiment of the present invention3Side view of core iron for casting back wall casting of electric bucket, FIG. 4 shows view A of FIG. 2, and FIG. 5 shows 10M in one embodiment of the present invention3Electric bucket back wallThe bottom view structure of the core iron for casting is schematic.
As shown in FIGS. 1 to 5, a 10M according to the present embodiment3Core iron for pouring of casting of back wall of electric bucket comprises:
the beam comprises a bearing beam framework consisting of two main beams 3 and two cross beams 1, a grid framework consisting of two main webs 4 at two ends, a plurality of auxiliary webs 6 arranged between the two main webs 4 and a plurality of auxiliary beams 5; the lower edge of the main web plate is provided with a flange of 10M3The electric bucket back casting is of an arc structure along with the shape.
The lower surface of the grid frame is provided with an inclined surface, and the upper surface of the grid frame is a plane.
10M of the present embodiment3Core iron is used in pouring of electric bucket back wall foundry goods still includes: two lifting lugs 2 arranged at two ends of each beam 1. The main beam 3 is parallel to the auxiliary beam 5, and the main web 4 is parallel to the auxiliary web 6. Two ends of the auxiliary web plate 6 extend out of the auxiliary beam 5, and two ends of the auxiliary web plate 6 are provided with arc-shaped edges.
The two primary webs 4 comprise a first primary web and a second primary web, the inclined plane is inclined from the first primary web towards the second primary web, the grid structure comprises a plurality of grids, the depth of the grids is gradually increased from the first primary web to the second primary web, and the arc-shaped edge of the secondary web 6 is gradually reduced along the inclined plane. The main beams 3, the cross beams 1, the main webs 4, the secondary webs 6 and the secondary beams 5 are made of ZG35 material through annealing treatment. The core iron for casting the rear wall casting of the 10M3 electric bucket of the embodiment further comprises: the lifting lug 2 is connected with the lower box through the box-closing clips (not shown).
The core iron has a certain weight and plays a role of a weight iron; the core iron has enough strength and plays a role of a framework; the core iron and the lower box are tightly clamped by a box closing clamp, so that no pressing iron is needed. Therefore, after a plurality of times of field simulation operations and a plurality of times of modification, the special core iron is finally and successfully invented. The main beam 3 and the cross beam 1 play a supporting role; the lower edges of the main web plate 4 and the auxiliary web plate 6 adopt an arc-shaped following structure, and the whole body is in a grid layout, so that sand hanging during modeling is facilitated; when the mould assembling, the four lifting lugs 2 and the sand box are clamped tightly by the mould assembling clamps, so that the mould assembling is prevented from being lifted. The core iron is made of a casting, the ZG35 material is made of the core iron, and the weight of the core iron is 5.3 tons. During manufacturing, a plurality of risers or chills are arranged at the hot spot part, so that the joint of the main beam 3 and the web is free of defects. The whole core iron is annealed to eliminate casting stress and prevent the core iron from cracking. The grid structure is cleaned up to form burr-free flash, and sand hanging is facilitated. Openings are formed at two ends of the sand core box, and the main beam 3 of the core iron can be placed in the openings. The special fixture is used for clamping the core iron and the lower box. The core is convenient to knock out, does not deform, and can be used repeatedly.
The using method comprises the following steps: when the sand core is manufactured, the core iron is placed in the core box, the uniform sand consumption at the periphery of the web plate is ensured, the grid is filled with molding sand at will, and the sand core and the core iron are integrated through vibration compaction. After the sand core is manufactured, the main web plate 4 can be used as a base, the sand core is lifted and erected, and coating is convenient to paint. When the core is placed in the box, the main beam 3 is rested on the wall of the box, thereby playing the role of supporting the sand core. The lifting lugs 2 on two sides of the beam 1 and the lower box flange are tightly clamped by a plurality of box closing clamps, so that the sand core does not lift the box. When the casting is boxed, the core hanging iron directly shakes and shakeout, the sand core is cleaned instantly, and the core iron can be used for production again. The core iron is the core bone and also plays a role of the chilling block. The core iron has large volume, reduces the consumption of the molding sand, can reduce 1 ton of molding sand per piece, and saves the cost.
10M of the invention3The core iron for pouring the casting on the rear wall of the electric bucket is convenient for workers to mold and mould, so that the production efficiency is improved; the core is placed in the middle core to play a skeleton role, so that the strength of the middle core is improved; the dual functions of the weight and the internal chill are realized; the special core iron and the lower box are tightly locked by the box lock, so that the casting is prevented from lifting the box, and the product percent of pass is improved; the occurrence of gun fire accidents is prevented, the safety risk is reduced, and the safety production is ensured.

Claims (10)

1. 10M3Core iron is used in pouring of electric bucket back wall foundry goods, its characterized in that includes: the device comprises a bearing beam framework consisting of two main beams and two cross beams, a grid framework consisting of two main webs at two ends, a plurality of auxiliary webs arranged between the two main webs and a plurality of auxiliary beams; the lower edge of the main web plate is provided with a flange of 10M3Arc structure of electric bucket rear casting following type。
2. The 10M of claim 13The core iron for pouring the casting of the back wall of the electric bucket is characterized in that the lower surface of the grid frame is provided with an inclined surface.
3. The 10M of claim 13The core iron for pouring the casting of the back wall of the electric bucket is characterized in that the upper surface of the grid frame is a plane.
4. The 10M of claim 13Core iron is used in pouring of electric bucket back wall foundry goods, its characterized in that still includes: and the two lifting lugs are arranged at two ends of each cross beam.
5. The 10M of claim 13The core iron for pouring the casting of the rear wall of the electric bucket is characterized in that the main beam is parallel to the auxiliary beam, and the main web is parallel to the auxiliary web.
6. The 10M of claim 13The core iron for pouring the casting of the back wall of the electric bucket is characterized in that two ends of the auxiliary web plate extend out of the auxiliary beam, and arc-shaped edges are arranged at two ends of the auxiliary web plate.
7. The 10M of claim 23The core iron for pouring the casting of the back wall of the electric bucket is characterized in that the two main webs comprise a first main web and a second main web, the inclined surface inclines from the first main web to the second main web, the grid framework comprises a plurality of grids, and the depth of the grids is gradually increased from the first main web to the second main web.
8. The core iron for casting a back wall casting of a 10M3 electric bucket according to claim 6 wherein the arcuate edges of the secondary webs taper along the inclined surface.
9. The 10M of claim 13The core iron for casting the casting of the rear wall of the electric bucket is characterized in that the main beam, the cross beam, the main web plate, the auxiliary web plate and the auxiliary beam are made of ZG35 material through annealing treatment.
10. The 10M of claim 43The core iron for pouring the casting of the rear wall of the electric bucket is characterized by further comprising a plurality of box assembling clips, and the lifting lug is connected with the lower box through the box assembling clips.
CN202210124917.7A 2022-02-10 2022-02-10 10M 3 Core iron for pouring electric bucket rear wall casting Active CN114433810B (en)

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065864A (en) * 1979-12-18 1981-07-01 Wilson W J Heat exchangers for solar heaters
JPH0671379A (en) * 1992-08-27 1994-03-15 Mitsubishi Electric Corp Manufacture of metallic mold having complex curved surface
DE19734286C1 (en) * 1996-08-09 1998-04-23 Mecklenburger Metallgus Gmbh Variable mould for metal castings
CN2336895Y (en) * 1998-07-06 1999-09-08 王彤 Sand-mould compressing iron clamping apparatus
CN2845956Y (en) * 2005-12-15 2006-12-13 天津市亨特尔机电发展有限公司 Automatic shift load sleeve box press iron cleaning device for robot
CN101791677A (en) * 2010-02-21 2010-08-04 济南中森机械制造有限公司 Manufacturing method of overall cast beam
CN201921994U (en) * 2010-12-10 2011-08-10 四川简阳海特有限公司 Device for preventing upper box of welding sand box in casting from lifting
CN103521703A (en) * 2013-09-18 2014-01-22 宁夏共享集团有限责任公司 Method for preventing shifting of lost foam sand model
CN104985117A (en) * 2015-06-27 2015-10-21 共享装备有限公司 Method for floatingly pressing box
CN108620533A (en) * 2018-05-21 2018-10-09 河海大学常州校区 A kind of three-cavity moulding technique of medium-sized thin-wall frame class casting
CN110293218A (en) * 2019-07-16 2019-10-01 溧阳市联华机械制造有限公司 A kind of weight clamp device and method for line resin sand casting mold
CN110586907A (en) * 2019-09-26 2019-12-20 江苏钢锐精密机械有限公司 Casting site flue gas recovery method and multifunctional casting iron weight capable of collecting dust and recovering
CN211028010U (en) * 2019-08-05 2020-07-17 江苏钢锐精密机械有限公司 Casting weight supporting device for wind power product casting
CN212884876U (en) * 2020-06-28 2021-04-06 上海机床铸造一厂(苏州)有限公司 Manufacturing system of sand core for casting of wind power base casting

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065864A (en) * 1979-12-18 1981-07-01 Wilson W J Heat exchangers for solar heaters
JPH0671379A (en) * 1992-08-27 1994-03-15 Mitsubishi Electric Corp Manufacture of metallic mold having complex curved surface
DE19734286C1 (en) * 1996-08-09 1998-04-23 Mecklenburger Metallgus Gmbh Variable mould for metal castings
CN2336895Y (en) * 1998-07-06 1999-09-08 王彤 Sand-mould compressing iron clamping apparatus
CN2845956Y (en) * 2005-12-15 2006-12-13 天津市亨特尔机电发展有限公司 Automatic shift load sleeve box press iron cleaning device for robot
CN101791677A (en) * 2010-02-21 2010-08-04 济南中森机械制造有限公司 Manufacturing method of overall cast beam
CN201921994U (en) * 2010-12-10 2011-08-10 四川简阳海特有限公司 Device for preventing upper box of welding sand box in casting from lifting
CN103521703A (en) * 2013-09-18 2014-01-22 宁夏共享集团有限责任公司 Method for preventing shifting of lost foam sand model
CN104985117A (en) * 2015-06-27 2015-10-21 共享装备有限公司 Method for floatingly pressing box
CN108620533A (en) * 2018-05-21 2018-10-09 河海大学常州校区 A kind of three-cavity moulding technique of medium-sized thin-wall frame class casting
CN110293218A (en) * 2019-07-16 2019-10-01 溧阳市联华机械制造有限公司 A kind of weight clamp device and method for line resin sand casting mold
CN211028010U (en) * 2019-08-05 2020-07-17 江苏钢锐精密机械有限公司 Casting weight supporting device for wind power product casting
CN110586907A (en) * 2019-09-26 2019-12-20 江苏钢锐精密机械有限公司 Casting site flue gas recovery method and multifunctional casting iron weight capable of collecting dust and recovering
CN212884876U (en) * 2020-06-28 2021-04-06 上海机床铸造一厂(苏州)有限公司 Manufacturing system of sand core for casting of wind power base casting

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