CN106694808A - Method for casting annular thin-wall castings by means of feeding stack box of gating system - Google Patents
Method for casting annular thin-wall castings by means of feeding stack box of gating system Download PDFInfo
- Publication number
- CN106694808A CN106694808A CN201710188487.4A CN201710188487A CN106694808A CN 106694808 A CN106694808 A CN 106694808A CN 201710188487 A CN201710188487 A CN 201710188487A CN 106694808 A CN106694808 A CN 106694808A
- Authority
- CN
- China
- Prior art keywords
- casting
- feeding
- core
- mould
- castings
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive agents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Abstract
The invention relates to a method for casting castings, in particular to a method for casting annular thin-wall castings by means of a feeding stack box of a gating system. The method is characterized in that firstly, a mould is designed and manufactured; secondly, a core box containing a detachable cross pouring gate, a detachable feeding pouring gate and a casting mould is manufactured; thirdly, a corresponding lower-form and shrinkproof loam core is manufactured, and the loam core and the feeding pouring gate are manufactured according to the number of the castings; fourthly, the mould is matched, and castings are obtained by pouring molten iron after the mould is matched; and fifthly, the qualified castings are obtained after grinding, cleaning and detecting are completed. According to the pouring method of the annular thin-wall castings, the mould is easy to manufacture, a plurality of parts can be manufactured through one box according to needs, the number of the castings through the box can be flexibly adjusted according to needs, the finally formed castings are good in structure and performance, the probability of the shrinking defect is obviously lowered, the cost is low, and the percent of pass of the products is high.
Description
Technical field
The present invention relates to casting field, concretely relate to a kind of using Gating and feeding system stack casting annular thin wall
The process of casting.
Background technology
With expanding economy, control requirement of the foundry enterprise to the production cost, production efficiency and percent defective of casting is got over
Come higher, client is also more and more stricter to the quality requirement of product.Traditional annular thin wall class parts of Casting production technology is all
Reduce the shrinkage porosite of casting using a large amount of chills, general one case one it is flat do, but chill it is a large amount of using easily produce cold shut,
The various defects, low production efficiency, percent defective such as excessively high-leveled and difficult processing of material hardness at stomata, sand mud, chill gap shrinkage porosite, chill
Height, and heat treatment, high cost are often may require that, and be easily deformed；Also some do one case more than one piece technique using perpendicular, but
It is difficult to effectively solve shrinkage porosite, chill is typically also largely used, also as parting and pattern draft cause mistake just and allowance
The defect such as uneven.Traditional handicraft can only pour into a mould 2,3 casting due to molten iron cooling when casting ladle is moved, an iron clad water, and often
Part pouring temperature difference is big, and low production efficiency, percent defective is high.
The content of the invention
It is an object of the invention to provide a kind of artificial with the cost of material is low, can as needed regulate and control one case number of casting
Amount, once produces the casting technique of multiple annular thin wall class part products in one case.
Technical scheme is as follows：
With the casting technique of Gating and feeding system stacked box bearing cap, following steps are specifically included:
1st, a kind of method of Gating and feeding system stack casting annular thin wall casting, it is characterised in that comprise the following steps：
1) mould is designed：Die joint and running gate system are designed by plane parting；
2) mould is made：A core box is made, a complete cast model is specially made and is placed on template, in casting mould
Reasonable mold thickness is reserved outside type and makes core box housing, in cast model inner circle etc. point arrangement multiple with the contour feeding of core box housing
Running channel, feeding running channel is connected with cast model, then does a radioactive cross gate and be connected with multiple feeding running channels, and cross gate can
To dismantle；
3) anti-shrinkage porosite mud core is made：A loam core for having cross gate is made with the core box；The cross gate of core box, root are removed again
Some loam cores without cross gate are made according to demand, the sprue for running through is made at all loam core centers；
4）Make mo(u)ld bottom half：Sandbox is put on flat board, one block of refractory brick is placed in the position of correspondence sprue, furans is put in sandbox
Resin sand makes mo(u)ld bottom half；
5) with mould:The loam core of cross gate is first put on mo(u)ld bottom half, loam core of then aliging stacks some loam cores without cross gate；
The loam core overcoat sandbox for stacking, sandbox highly slightly above loam core is always high, seals the suitable for reading of feeding running channel, and increasing sprue makes it
Higher than sandbox, it is packed into sandbox with furan resin-sand and compresses real as mo(u)ld top half, in sprue placed on top tundish, after fastening
Obtain pourable die cavity；
6) melting:Melting obtains molten iron, and molten iron includes CE4.4-4.7%, C3.0-3.9%, Si1.8- by weight percent
3.0%th, Mn≤0.2%, P≤0.3%, S≤0.03%, Mg0.02-0.065%, Ni0.1-0.2%, nodulizer 1.0%, pregnant
Educate agent 0.6%, random inoculant 0.1%, remaining be Fe；
7) pour into a mould:After molten iron is come out of the stove, to pouring molten iron in die cavity, unpacked after held for some time, obtain casting blank；
8) finished product：Blank is taken out, sand removal ball blast, removal cast gate, fash are carried out to casting blank, casting is obtained after polishing refine
Finished product；
9）Detection：Detect casting finished products whether there is shrinkage defect and show by UT.
Improvement to above-mentioned technical proposal：The tapping temperature of the molten iron is 1480 DEG C -1500 DEG C, controls the cast of molten iron
Temperature is 1320 DEG C -1350 DEG C, and soaking time is 24 hours after cast.
Improvement to above-mentioned technical proposal：The resin amount control 1.05%-1.2% of the resin sand, curing agent is added
Amount 30%-60%, sand bond 2.0MPa-2.4 MPa.
Improvement to above-mentioned technical proposal：The nodulizer is Mg contents 5.0%-6.0%, Re content 0.35%-0.65%, Si
Content 44.0%-48.0%；Inovulant used is Si contents 72.0%-78%, Ba content 2.0%-3.0%, Ca content 1.0%-
2.0%。
The technical effects of the invention are that：
, Mold Making it is simple, it is only necessary to a core box；
2., can one case casting quantity of flexible modulation as needed, once produce multiple casting；
3., the distribution of sand mold medium casting is compact, and yield rate is high；
4., each loam core running gate system coordinates carries out feeding to casting, it is not necessary to use chill, cost-effective while eliminating tradition
Material is hard at the cold shut that is caused using chill in technique, stomata, sand mud, cast(ing) surface chill vestige, chill gap shrinkage porosite, chill
Spend the various defects such as high-leveled and difficult processing；
5., the multiple casting of an iron clad water disposal pouring one case, temperature is consistent, it is easy to controls, improves production efficiency and product
Qualification rate；
6., the visual quality of casting is good, can reduce a large amount of cleaning polishing man-hours；
7., due to that need not be heat-treated, cost-effective and service cycle, it is to avoid casting is because of heat treatment deformation；
8., compared with traditional handicraft casting, hence it is evident that shrinkage defect is reduced, or even without shrinkage defect.
By setting the loam core of uniform feeding running gate system and laminated multi-layer, one case casting more than one piece bearing can be realized
Lid, and by the feeding of feeding running gate system, shrinkage defect can be effectively improved, so that reduce multiply production cost, efficiency high.
The process is easy to operate, low cost, efficiency high, wide market, it is adaptable to most foundry enterprises.
Brief description of the drawings
Fig. 1 is process schematic representation of the invention.
Fig. 2 is top view.
Shown in figure：
1- tundish, 2- sprues, 3- bearing cap cast models, 4- cross gates, 5- feeding running channels, 6- mo(u)ld top halves, 7- mo(u)ld bottom halves, 8- has horizontal stroke
Running channel loam core, 9- is without cross gate loam core, 10- refractory brick.
Specific embodiment
Specific embodiment of the invention is further described below in conjunction with the accompanying drawings.
With the casting technique of Gating and feeding system stacked box bearing cap, following steps are specifically included：
Operating process of the invention, by taking cast bearing lid class as an example, specifically with one case three, a diameter of 1000mm bearing caps come
Cast, as shown in figure 1, feeding running channel 5 is uniform along casting circumferencial direction trisection, three within general diameter 1500mm
Feeding running channel etc. point arrangement, and within a diameter of 1500mm of the widely used bearing cap of in the market, therefore three feeding of setting are poured
Road can meet the purpose of effective feeding, and for the ring-shaped thin-walled part of special diameter, casting diameter more it is big then in requisition for
The feeding running channel quantity of setting is also more.
1) mould is designed：Die joint and running gate system are designed by plane parting；
2) mould is made：A core box is made, a complete bearing cap cast model 3 is specially made and is placed on template,
Reasonable mold thickness is reserved outside cast model and makes core box housing, arrange contour with core box housing in cast model inner circle trisection
Feeding running channel 5, feeding running channel 5 is connected with bearing cap cast model 3, then do a connection of the cross gate of triradiation 4 each
Feeding running channel 5, cross gate 4 can be dismantled；
3) anti-shrinkage porosite mud core is made：A loam core 8 for having cross gate is made with the core box；The cross gate 4 of core box is removed again,
The loam core 9 without cross gate is made, the sprue 2 for running through is made at three loam core centers；
4）Make mo(u)ld bottom half：Sandbox is put on flat board, in correspondence sprue（2）Position place one block of refractory brick（10）, prevention pours
Molten iron sand washing during note, furan resin-sand is then put in sandbox and makes mo(u)ld bottom half（7）；
5) with mould:The loam core 8 of cross gate is first put on mo(u)ld bottom half 7, loam core of then aliging stacks two loam cores 9 without cross gate
（One case making, three casting, therefore stack two loam cores 9 without cross gate in this embodiment, and need to do one case five it is thin
It is corresponding to increase, it is necessary to stack four loam cores without cross gate during wall circular casting, and when needing to cast more casting one case
Plus the number of the loam core without cross gate is）；In the loam core overcoat sandbox for stacking, sandbox highly slightly above loam core is always high, sealing
Three feeding running channels 5 it is suitable for reading, increase sprue 2 and make it higher than sandbox, being packed into sandbox with furan resin-sand compresses real being
Mo(u)ld top half 6, in the placed on top tundish 1 of sprue 2, pourable die cavity is can obtain after fastening；
6) melting:Melting obtains molten iron, and molten iron includes CE4.4-4.7%, C3.0-3.9%, Si1.8- by weight percent
3.0%th, Mn≤0.2%, P≤0.3%, S≤0.03%, Mg0.02-0.065%, Ni0.1-0.2%, nodulizer 1.0%, pregnant
Educate agent 0.6%, random inoculant 0.1%, remaining be Fe；Wherein, nodulizer is specially Mg contents 5.0%-6.0%, Re content
0.35%-0.65%, Si content 44.0%-48.0%；Inovulant used is Si contents 72.0%-78%, Ba content 2.0%-3.0%,
Ca contents 1.0%-2.0%.
7) pour into a mould:Molten iron is come out of the stove, tapping temperature control between 1480 DEG C -1500 DEG C, to pouring molten iron in die cavity, control
The pouring temperature of molten iron is 1320 DEG C -1350 DEG C, and the duration of pouring is controlled in 20s -25s.（Duration of pouring of molten iron and one herein
The actual quantity of casting is relevant in case, and casting quantity is more in one case, and the duration of pouring is more long）, after pouring and being poured in, it is incubated 24 hours
After unpack, obtain casting blank；
In casting process, molten iron from cross gate flow into orlop loam core feeding running channel, then along feeding running channel from it is lower toward
On successively steadily be full of each casting die cavity.During molten steel solidification, feeding running channel 5 is consistently higher than casting, can so provide
Effective feeding and exhaust conditions, the structure of decile arrangement disclosure satisfy that feeding distance of each feeding running channel 5 to casting so that every
Individual casting, to feeding running channel consecutive solidification, effectively prevents contracting occur in casting from adjacent feeding running channel centre position so as to reach
The effect of the defects such as hole, shrinkage porosite.
8）Finished product:Blank is taken out, sand removal ball blast, removal cast gate, fash are carried out to casting blank, cast after polishing refine
Part finished product；And in fact, the casting blank surface quality made by this running gate system preferably, therefore it may only be necessary to fash and
Cast gate undesirable root carries out polishing refine.
9）Detection：By UT instruments, image shows intact inside it to be detected to three bearing cap casting finished products
Fall into.
This bearing cap is cast using traditional handicraft, 50 are produced, detected through NDT, shrinkage defect scraps 34, and qualification rate is only
Have 32%, and there are the defects such as different degrees of slag inclusion, cold shut, sand holes, and most performance detections are unqualified, it is necessary to be heat-treated.
Using this programme, manufacture experimently three casees, have per case 3, bearing cap casting, 5,5, totally 13, detected through NDT and verified, UT, MT,
PT is satisfied by one-level requirement, and UT is not detected by shrinkage cavity or shrinkage defect, and qualification rate reaches 100%.
It should be noted last that, above specific embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of this technical solution of the present invention, it all should contain
Cover in the middle of scope of the presently claimed invention.
Claims (4)
1. a kind of method of Gating and feeding system stack casting annular thin wall casting, it is characterised in that comprise the following steps：
1）Design mould：Die joint and running gate system are designed by plane parting；
2）Make mould：A core box is made, a complete cast model is specially made and is placed on template, in casting mould
Reasonable mold thickness is reserved outside type and makes core box housing, in cast model inner circle etc. point arrangement multiple with the contour feeding of core box housing
Running channel（5）, feeding running channel（5）It is connected with cast model, then does a radioactive cross gate（4））With multiple feeding running channels（5）
Connection, cross gate（4）Can dismantle；
3）Make anti-shrinkage porosite mud core：A loam core for having cross gate is made with the core box（8）；The cross gate of core box is removed again
（4）, measure make some loam cores without cross gate according to demand（9）, the sprue for running through is made at all loam core centers（2）；
4）Make mo(u)ld bottom half：Sandbox is put on flat board, in correspondence sprue（2）Position place one block of refractory brick（10）, in sandbox
Inside put furan resin-sand and make mo(u)ld bottom half（7）；
5) with mould:First in mo(u)ld bottom half（7）On put the loam core of cross gate（8）, loam core of then aliging（8）Stack and some poured without horizontal
The loam core in road（9）；In the loam core overcoat sandbox for stacking, sandbox highly slightly above loam core is always high, seals feeding running channel（5）It is upper
Mouthful, increase sprue and make it higher than sandbox, being packed into sandbox with furan resin-sand compresses real as mo(u)ld top half（6）, in sprue（2）
Placed on top tundish（1）, pourable die cavity is can obtain after fastening；
6）Melting:Melting obtains molten iron, and molten iron includes CE4.4-4.7%, C3.0-3.9%, Si1.8- by weight percent
3.0%th, Mn≤0.2%, P≤0.3%, S≤0.03%, Mg0.02-0.065%, Ni0.1-0.2%, nodulizer 1.0%, pregnant
Educate agent 0.6%, random inoculant 0.1%, remaining be Fe；
7）Cast:After molten iron is come out of the stove, to pouring molten iron in die cavity, unpacked after held for some time, obtain casting blank；
8）Finished product:Blank is taken out, sand removal ball blast, removal cast gate, fash are carried out to casting blank, casting is obtained after polishing refine
Finished product；
9）Detection：Detect casting finished products whether there is shrinkage defect and show by UT.
2. according to the method for the Gating and feeding system stack casting annular thin wall casting described in claim 1, it is characterized in that：It is described
The tapping temperature of molten iron is 1480 DEG C -1500 DEG C, the pouring temperature of molten iron is controlled for 1320 DEG C -1350 DEG C, when being incubated after cast
Between be 24 hours.
3. according to the method for the Gating and feeding system stack casting annular thin wall casting described in claim 1 or 2, it is characterized in that：
Resin amount the control 1.05%-1.2%, curing agent addition 30%-60%, sand bond 2.0MPa-2.4 of the resin sand
MPa。
4. according to the method for the Gating and feeding system stack casting annular thin wall casting described in claim 1, it is characterized in that：It is described
Nodulizer is Mg contents 5.0%-6.0%, Re content 0.35%-0.65%, Si content 44.0%-48.0%；Inovulant used is Si
Content 72.0%-78%, Ba content 2.0%-3.0%, Ca content 1.0%-2.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188487.4A CN106694808B (en) | 2017-03-27 | 2017-03-27 | The method of Gating and feeding system stack casting annular thin wall casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188487.4A CN106694808B (en) | 2017-03-27 | 2017-03-27 | The method of Gating and feeding system stack casting annular thin wall casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106694808A true CN106694808A (en) | 2017-05-24 |
| CN106694808B CN106694808B (en) | 2018-11-27 |
Family
ID=58886767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710188487.4A Active CN106694808B (en) | 2017-03-27 | 2017-03-27 | The method of Gating and feeding system stack casting annular thin wall casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106694808B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237204A (en) * | 2018-03-07 | 2018-07-03 | 衢州学院 | A kind of aluminium alloy front end frame running gate system and manufacturing method |
| CN108655337A (en) * | 2018-05-15 | 2018-10-16 | 芜湖新兴新材料产业园有限公司 | A kind of foamed model of baffle ring and baffle ring lost foam casting process |
| CN110014120A (en) * | 2019-05-16 | 2019-07-16 | 芜湖久弘重工股份有限公司 | A kind of casting and molding method that the wood that disappears combines |
| CN110449556A (en) * | 2019-08-28 | 2019-11-15 | 贵州大学 | A kind of gearbox rear housing body casting method |
| CN114012041A (en) * | 2021-10-11 | 2022-02-08 | 甘肃酒钢集团西部重工股份有限公司 | Casting device and casting method for producing small impeller by 3DP sand mold technology |
| CN114012041B (en) * | 2021-10-11 | 2024-05-14 | 甘肃酒钢集团西部重工股份有限公司 | Casting device and casting method for producing small impeller by 3DP sand mold technology |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733712A (en) * | 1986-07-25 | 1988-03-29 | Eaton Corporation | Method of casting multiple articles |
| CN1180003A (en) * | 1996-10-16 | 1998-04-29 | 杜万锁 | Casting method for high wear-resisting steel ball |
| CN2450441Y (en) * | 2000-11-10 | 2001-09-26 | 孙兆宝 | Spheroidal iron chain wheel casting stack |
| CN1733389A (en) * | 2004-08-03 | 2006-02-15 | 孙兆宝 | Pouring method capable of improving utilization ratio of liquid steel for steel casting |
| CN101879582A (en) * | 2010-08-02 | 2010-11-10 | 宁波市艾宏球墨铸造有限公司 | Precoated sand multi-stack casting process |
| CN104942235A (en) * | 2014-03-24 | 2015-09-30 | 韩金福 | Box stacking and pouring technical method for automobile brake disc |
| CN205587613U (en) * | 2016-04-26 | 2016-09-21 | 张建 | Tectorial membrane sand mo(u)ld utensil of cast stainless steel thin wall spare |
| CN106011607A (en) * | 2016-07-15 | 2016-10-12 | 江苏汽铸造股份有限公司 | Silicon solid melt reinforced ferrite nodular cast iron and preparation technique thereof |
-
2017
- 2017-03-27 CN CN201710188487.4A patent/CN106694808B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733712A (en) * | 1986-07-25 | 1988-03-29 | Eaton Corporation | Method of casting multiple articles |
| CN1180003A (en) * | 1996-10-16 | 1998-04-29 | 杜万锁 | Casting method for high wear-resisting steel ball |
| CN2450441Y (en) * | 2000-11-10 | 2001-09-26 | 孙兆宝 | Spheroidal iron chain wheel casting stack |
| CN1733389A (en) * | 2004-08-03 | 2006-02-15 | 孙兆宝 | Pouring method capable of improving utilization ratio of liquid steel for steel casting |
| CN101879582A (en) * | 2010-08-02 | 2010-11-10 | 宁波市艾宏球墨铸造有限公司 | Precoated sand multi-stack casting process |
| CN104942235A (en) * | 2014-03-24 | 2015-09-30 | 韩金福 | Box stacking and pouring technical method for automobile brake disc |
| CN205587613U (en) * | 2016-04-26 | 2016-09-21 | 张建 | Tectorial membrane sand mo(u)ld utensil of cast stainless steel thin wall spare |
| CN106011607A (en) * | 2016-07-15 | 2016-10-12 | 江苏汽铸造股份有限公司 | Silicon solid melt reinforced ferrite nodular cast iron and preparation technique thereof |
Non-Patent Citations (1)
| Title |
|---|
| 侯增寿等: "《金属热加工实用手册》", 31 December 1996, 机械工业出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237204A (en) * | 2018-03-07 | 2018-07-03 | 衢州学院 | A kind of aluminium alloy front end frame running gate system and manufacturing method |
| CN108237204B (en) * | 2018-03-07 | 2023-06-20 | 衢州学院 | Aluminum alloy front end frame pouring system and manufacturing method |
| CN108655337A (en) * | 2018-05-15 | 2018-10-16 | 芜湖新兴新材料产业园有限公司 | A kind of foamed model of baffle ring and baffle ring lost foam casting process |
| CN108655337B (en) * | 2018-05-15 | 2023-11-07 | 芜湖新兴新材料产业园有限公司 | Baffle ring foam plastic model and baffle ring lost foam casting process |
| CN110014120A (en) * | 2019-05-16 | 2019-07-16 | 芜湖久弘重工股份有限公司 | A kind of casting and molding method that the wood that disappears combines |
| CN110449556A (en) * | 2019-08-28 | 2019-11-15 | 贵州大学 | A kind of gearbox rear housing body casting method |
| CN114012041A (en) * | 2021-10-11 | 2022-02-08 | 甘肃酒钢集团西部重工股份有限公司 | Casting device and casting method for producing small impeller by 3DP sand mold technology |
| CN114012041B (en) * | 2021-10-11 | 2024-05-14 | 甘肃酒钢集团西部重工股份有限公司 | Casting device and casting method for producing small impeller by 3DP sand mold technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106694808B (en) | 2018-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106694808A (en) | Method for casting annular thin-wall castings by means of feeding stack box of gating system | |
| CN103212672B (en) | Method for casting low speed diesel engine cylinder cap for large cylinder diameter boat | |
| CN102626769B (en) | Manufacturing process of pump body casting of super duplex stainless steel centrifugal pump | |
| CN103920849B (en) | The casting method of Diesel Engine Cylinder Block Castings | |
| CN102430714A (en) | Process for casting thick and large nodular cast iron valve plate | |
| CN103862000B (en) | A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique | |
| CN104439074A (en) | Fusible mold precision casting method | |
| CN101767186A (en) | Method for preventing crush of lost foam casting product | |
| CN103143675A (en) | Process for casting ball iron flywheel by iron model sand covering | |
| CN108213323A (en) | A kind of locking contracting casting method of differential carrier | |
| CN107716872A (en) | A kind of casting method of large-scale working ways | |
| CN101961768A (en) | Method for casting cast steel cylinder cover | |
| CN105057587A (en) | Grinding disc casting, grinding disc casting mold and grinding disc molding process | |
| CN102371345B (en) | Method for casting ductile iron casting of air-conditioning compressor | |
| CN106636878A (en) | Production technology of crankcase casting | |
| CN110153371A (en) | Prevent the casting method of spherulitic iron crankshaft shrinkage defect | |
| CN106238688B (en) | A kind of casting method of piston type casting | |
| CN202943212U (en) | Novel chilling block mould for producing chilling camshaft | |
| CN106077494A (en) | A kind of pouring procedure casting VHP main beating cap | |
| CN102248135B (en) | Liquid steel casting equipment | |
| CN107096893A (en) | Bracket casting mixed type apparatus for pouring and bracket casting casting technique | |
| CN204685964U (en) | The core group preventing foundry goods from running away | |
| CN204934503U (en) | A kind of abrasive disk foundry goods and abrasive disk casting pattern | |
| CN107297463A (en) | A kind of single cylinder crankshaft casting technique | |
| CN109518073A (en) | A kind of zigzag spheroidal graphite cast-iron platform and its casting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214174 No. 99 Huicheng Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Jiangsu Tianqi Heavy Industry Co.,Ltd. Address before: 214174 No. 99 Huicheng Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: JIANGSU FAW FOUNDRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |