CN107042279A - A kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim - Google Patents
A kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim Download PDFInfo
- Publication number
- CN107042279A CN107042279A CN201611081786.XA CN201611081786A CN107042279A CN 107042279 A CN107042279 A CN 107042279A CN 201611081786 A CN201611081786 A CN 201611081786A CN 107042279 A CN107042279 A CN 107042279A
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- China
- Prior art keywords
- sand
- shim
- casting
- inner cavity
- cavity structural
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- 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.)
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Classifications
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- 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
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim, for inner chamber complex structural member, at thermal center concentration, the special sand matched is put at R angles, easy sand shim position is placed on, to accelerate the solidification of cast(ing) surface herein, so as to improve surface quality of continuous castings；Routinely technological requirement carries out moulding, coremaking, mould assembling, melting, cast, you can.By the method for the present invention, the qualification rate of casting both improved, reduced production cost, and be easy to operation again, can effectively solve complicated inner cavity structural member, because thermal center concentrations cross sand shim formed by thermal sintering.
Description
Technical field
The present invention relates to sand casting field, specifically a kind of ultra-thin gap complicated inner cavity structural casting sand shim of solution
Method.
Background technology
Casting is in casting process, and when heat energy is constantly transmitted to molding sand or core sand, the temperature of its core sand or molding sand can not
Disconnected rise, when temperature has exceeded the resistance to fire intensity of sand mold or core, easily produces sand shim.Generally occur to concentrate in thermal center
At place, corner and molten steel encirclement.If there is sand shim in core cavity, can not clear up again in the case of, casting can be influenceed
Part matching problem during normal use, hydraulic problems.Therefore the size integrity degree of the inner chamber of casting is extremely important.
The content of the invention
It is an object of the invention to provide a kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim, to solve
The problem of being proposed in certainly above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim, step is as follows：
(1) inner chamber complex structural member is directed to, at thermal center concentration, the special sand matched is put at R angles, easy sand folder is placed on
Iron position, to accelerate the solidification of cast(ing) surface herein, so as to improve surface quality of continuous castings；
(2) routinely technological requirement carries out moulding, coremaking, mould assembling, melting, cast, you can.
Compared with prior art, the beneficial effects of the invention are as follows：
By the method for the present invention, the qualification rate of casting both improved, reduced production cost, and be easy to operation again, can have
Effect solves complicated inner cavity structural member, because thermal center concentrations cross sand shim formed by thermal sintering.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
The method for solving ultra-thin gap complicated inner cavity structural casting sand shim, step is as follows：
(1) inner chamber complex structural member is directed to, at thermal center concentration, the special sand matched is put at R angles, easy sand folder is placed on
Iron position, to accelerate the solidification of cast(ing) surface herein, so as to improve surface quality of continuous castings；
Special sand particular number and data proportioning are fixed according to the technique and casting thickness of casting；
Special sand：MKg (special sand species technique is determined)
Resin：M1.2% (component one, component two respectively account for 50%)
Curing agent：M1.2% (25~35%)
(2) routinely technological requirement carries out moulding, coremaking, mould assembling, melting, cast, you can.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Claims (1)
1. a kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim, it is characterised in that step is as follows：
(1) inner chamber complex structural member is directed to, at thermal center concentration, the special sand matched is put at R angles, easy sand shim portion is placed on
Position, to accelerate the solidification of cast(ing) surface herein, so as to improve surface quality of continuous castings；
Special sand particular number, component and its proportioning are fixed according to the technique and casting thickness of casting；
Special sand：mKg
Resin：M1.2%
Curing agent：M1.2%
(2) routinely technological requirement carries out moulding, coremaking, mould assembling, melting, cast, you can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081786.XA CN107042279A (en) | 2016-11-30 | 2016-11-30 | A kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081786.XA CN107042279A (en) | 2016-11-30 | 2016-11-30 | A kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107042279A true CN107042279A (en) | 2017-08-15 |
Family
ID=59542786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611081786.XA Pending CN107042279A (en) | 2016-11-30 | 2016-11-30 | A kind of method for solving ultra-thin gap complicated inner cavity structural casting sand shim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107042279A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2095081C (en) * | 1992-05-14 | 1999-08-31 | Alan Peter Druschitz | Mold for producing thin wall castings by gravity pouring |
| CN103302230A (en) * | 2012-03-14 | 2013-09-18 | 武安市文祥合金制造有限公司 | Special sand proportiom for casting |
| CN103506580A (en) * | 2013-10-30 | 2014-01-15 | 宜昌船舶柴油机有限公司 | Casting method for large thin-wall valve body steel casting |
| CN104209497A (en) * | 2014-09-10 | 2014-12-17 | 山西银光华盛镁业股份有限公司 | Plaster casting method for large-sized complex thin-walled magnesium alloy part |
| CN104399881A (en) * | 2014-11-21 | 2015-03-11 | 宜昌船舶柴油机有限公司 | Casting method for steel casting of bearing pedestal of low-speed diesel engine for large-cylinder-diameter ship |
-
2016
- 2016-11-30 CN CN201611081786.XA patent/CN107042279A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2095081C (en) * | 1992-05-14 | 1999-08-31 | Alan Peter Druschitz | Mold for producing thin wall castings by gravity pouring |
| CN103302230A (en) * | 2012-03-14 | 2013-09-18 | 武安市文祥合金制造有限公司 | Special sand proportiom for casting |
| CN103506580A (en) * | 2013-10-30 | 2014-01-15 | 宜昌船舶柴油机有限公司 | Casting method for large thin-wall valve body steel casting |
| CN104209497A (en) * | 2014-09-10 | 2014-12-17 | 山西银光华盛镁业股份有限公司 | Plaster casting method for large-sized complex thin-walled magnesium alloy part |
| CN104399881A (en) * | 2014-11-21 | 2015-03-11 | 宜昌船舶柴油机有限公司 | Casting method for steel casting of bearing pedestal of low-speed diesel engine for large-cylinder-diameter ship |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170815 |