CN107052239A - The casting technique of small flow channels ironcasting - Google Patents
The casting technique of small flow channels ironcasting Download PDFInfo
- Publication number
- CN107052239A CN107052239A CN201611189771.5A CN201611189771A CN107052239A CN 107052239 A CN107052239 A CN 107052239A CN 201611189771 A CN201611189771 A CN 201611189771A CN 107052239 A CN107052239 A CN 107052239A
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- CN
- China
- Prior art keywords
- casting
- core
- steel pipe
- flow channels
- small flow
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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
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of casting technique of small flow channels ironcasting, comprise the following steps：A. core is manufactured, the steel pipe formation casting inner core with through hole is installed on core；B. the casting inner core in step a is put into the outer core inner of casting；C. combined together after potting syrup, the outer core of potting syrup injection casting are injected on the sprue gate for casting outer core with steel pipe, form casting, the through hole of steel pipe turns into the runner of casting；D. the outer core of casting and core are removed, casting is obtained；E. by ball blast sand removal processing, detect that by the casting examined be castings by high definition industrial endoscope.By the above-mentioned means, the casting technique of small flow channels ironcasting of the present invention, it can be ensured that the shaping of casting runner, high yield rate, manufacturing process is few.
Description
Technical field
The present invention relates to casting field, more particularly to a kind of casting technique of small flow channels ironcasting.
Background technology
In recent years, with the technological progress of every profession and trade, to the quality requirement of basic casting also more and more higher, the industry of 16 latus rectums
Valve body moulding must ensure that the runner inner wall surface roughness of part is small, smooth, resistance as the key components and parts in hydraulic part
It is small.
In sand casting forming valve body ironcasting, the runner of valve body is molded by core.But some valve bodies are cast
The runner of part is due to longer（Hundreds of millimeters）And diameter is smaller（≤6mm）, common core can not be molded at all.The industry of 16 latus rectums
There is diameter footpath and there was only 4mm, long 330mm runners in valve body moulding, if using common core, when casting is molded, causing core to break
Split, runner can not be molded.
The content of the invention
The present invention solves the technical problem of provide a kind of casting technique of small flow channels ironcasting, it can be ensured that casting
The shaping of runner, high yield rate, manufacturing process is few.
In order to solve the above technical problems, one aspect of the present invention is：A kind of small flow channels ironcasting is provided
Casting technique, comprises the following steps：A. core is manufactured, the steel pipe formation casting inner core with through hole is installed on core；b.
Casting inner core in step a is put into the outer core inner of casting；C. potting syrup is injected on the sprue gate for casting outer core, iron liquid
Solidification is cooled to room temperature, and the outer core of main body is defeated and dispersed to form cavity runner, and steel pipe core fuses into iron liquid, forms one, steel pipe core it is interior
Footpath forms the runner of casting；D. the outer core of casting and core are removed, casting is obtained；E. by ball blast sand removal processing, by high definition industry
The casting that endoscope check passes through inspection is castings.
In a preferred embodiment of the present invention, described steel pipe one end detachable is arranged on core, the other end and core
Upper surface flush or part stretch out in the upper surface of core.
In a preferred embodiment of the present invention, the steel duct is provided with a diameter of 4mm through hole, the steel pipe two ends
It is used as the inlet and outlet of casting runner.
In a preferred embodiment of the present invention, the potting syrup be iron liquid, the iron liquid casting temperature be 1375 DEG C~
1395℃。
In a preferred embodiment of the present invention, the core raw material is the low gas forming amount precoated sand of high intensity, in finishing die
Casting sand core is made in high-temperature heating solidification in tool.
In a preferred embodiment of the present invention, the steel pipe is high-quality low-carbon seamless steel pipe.
The beneficial effects of the invention are as follows：The casting technique of small flow channels ironcasting of the present invention, it can be ensured that casting runner into
Type, high yield rate, manufacturing process is few.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, it can also obtain other according to these accompanying drawings
Accompanying drawing, wherein：
Fig. 1 is the structural representation of the casting inner core of the present invention；
Fig. 2 is the structural representation of the steel pipe of the present invention；
Fig. 3 is the structural representation of the casting of the present invention；
Fig. 4 is the cast structure schematic diagram of the present invention；
The mark of each part is as follows in accompanying drawing：1st, core, 2, steel pipe, 3, casting, 4, through hole.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
Referring to Fig. 1, a kind of casting technique of small flow channels ironcasting, comprises the following steps：A. core 1 is manufactured, in core 1
On be provided with through hole 4 steel pipe 2 formation casting inner core；B. the casting inner core in step a is put into the outer core inner of casting；c.
1375 DEG C~1395 DEG C of high temperature iron liquid is poured into by running gate system.With the slow cooling of die cavity, the solidification of iron liquid is cooled to room temperature, sand
Core is defeated and dispersed to form cavity runner, and steel pipe fuses into iron liquid, forms one, the runner of the internal diameter formation casting of steel pipe；D. casting is removed
Outer core and core 1 are made, casting 3 is obtained.E. by ball blast sand removal processing, the casting by examining is detected by high definition industrial endoscope
For castings.
The raw material of core is the low gas forming amount precoated sand of high intensity；Equipment is hot box core-making machine；Technique be precoated sand into
Outer core is made in high-temperature heating solidification in shape mould.The raw material of steel pipe is high-quality low-carbon seamless steel pipe, and steel pipe core must pass through anaerobic
Stress relief annealing, it is ensured that the uniform wall thickness 2mm of steel pipe；Equipment is CNC tube bending machine；Technique is the shaping dies by bending machine,
The steel pipe core with stable space structure is made under prgraming automatized operational circumstances, under room temperature environment, and uses special school
Testing fixture ensures deflection≤0.15mm.
In addition, one end detachable of steel pipe 2 is arranged on core 1, the other end stretches out with the upper surface flush of core 1 or part
In the upper surface of core 1.
In addition, the inside of steel pipe 2 is provided with a diameter of 4mm through hole 4, the two ends of steel pipe 2 as casting runner inlet and outlet.
In addition, potting syrup is iron liquid.
After the completion of steel pipe and assembly of sand core, molten iron casting, molten iron casting, steel pipe is combined together with molten iron, in the middle of steel pipe
Diameter 4mm hole forms the runner of casting.Steel pipe and the effective integration of liquid cast are integrated；Ensure the circle of two end faces of steel pipe
The position degree in hole；The preventing of steel duct blocked up by iron liquid, and inwall ensures that continuity is good.
It is different from prior art, the casting technique of small flow channels ironcasting of the present invention, it can be ensured that the shaping of casting runner, into
Product rate is high, and manufacturing process is few
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to be said using the present invention
Equivalent structure or equivalent flow conversion that bright book content is made, or other related technical fields are directly or indirectly used in,
Similarly it is included within the scope of the present invention.
Claims (6)
1. a kind of casting technique of small flow channels ironcasting, it is characterised in that comprise the following steps：
A. core is manufactured, the steel pipe formation casting inner core with through hole is installed on core；
B. the casting inner core in step a is put into the outer core inner of casting；
C. potting syrup is injected on the sprue gate for casting outer core, the solidification of iron liquid is cooled to room temperature, and the outer core of main body is defeated and dispersed to be formed
Cavity runner, steel pipe core fuses into iron liquid, forms one, the runner of the internal diameter formation casting of steel pipe core；
D. the outer core of casting and core are removed, casting is obtained；
E. by ball blast sand removal processing, detect that by the casting examined be castings by high definition industrial endoscope.
2. the casting technique of small flow channels ironcasting according to claim 1, it is characterised in that described steel pipe one end detachable
On core, the other end stretches out in the upper surface of core with core upper surface flush or part.
3. the casting technique of small flow channels ironcasting according to claim 2, it is characterised in that the steel duct is provided with straight
Footpath be 4mm through hole, the steel pipe two ends as casting runner inlet and outlet.
4. according to the casting technique of any described small flow channels ironcastings of claim 1-3, it is characterised in that the potting syrup is
Iron liquid, the iron liquid casting temperature is 1375 DEG C~1395 DEG C.
5. the casting technique of small flow channels ironcasting according to claim 4, it is characterised in that the core raw material is high-strength
Low gas forming amount precoated sand is spent, solidification is heated at high temperature in shaping dies casting sand core is made.
6. the casting technique of small flow channels ironcasting according to claim 4, it is characterised in that the steel pipe is high-quality low-carbon
Seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189771.5A CN107052239A (en) | 2016-12-21 | 2016-12-21 | The casting technique of small flow channels ironcasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189771.5A CN107052239A (en) | 2016-12-21 | 2016-12-21 | The casting technique of small flow channels ironcasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107052239A true CN107052239A (en) | 2017-08-18 |
Family
ID=59619755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611189771.5A Pending CN107052239A (en) | 2016-12-21 | 2016-12-21 | The casting technique of small flow channels ironcasting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107052239A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570689A (en) * | 2017-09-05 | 2018-01-12 | 合肥江淮铸造有限责任公司 | A kind of casting air flue processing method |
| CN108941515A (en) * | 2018-09-13 | 2018-12-07 | 南通华东油压科技有限公司 | A kind of casting method of the mechanical-hydraulic valve body with seamless steel pipe |
| CN109332605A (en) * | 2018-12-06 | 2019-02-15 | 扬州峰明光电新材料有限公司 | The casting method of aluminium alloy engine shell |
| CN111531131A (en) * | 2020-05-29 | 2020-08-14 | 江苏恒立液压股份有限公司 | Casting sand core of plate valve and casting process of plate valve |
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| CN101905312A (en) * | 2009-06-08 | 2010-12-08 | 江苏新康华机械有限公司 | Process for casting U-shaped frame of wind power generation equipment |
| CN102744374A (en) * | 2012-07-25 | 2012-10-24 | 南车戚墅堰机车有限公司 | Manufacturing method for casting branch oilway in body of diesel engine |
| CN102764855A (en) * | 2012-07-24 | 2012-11-07 | 滁州金诺实业有限公司 | Technique for embedding stainless steel tube in large-size aluminum alloy casting blank |
| CN103170576A (en) * | 2013-04-02 | 2013-06-26 | 衡阳风顺车桥有限公司 | Technology for casting thick-wall steel casting with thin and long inner hole |
| CN104999058A (en) * | 2015-07-07 | 2015-10-28 | 江苏中通管业有限公司 | Manufacturing method for steel casting mould cooling water pipe |
-
2016
- 2016-12-21 CN CN201611189771.5A patent/CN107052239A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905312A (en) * | 2009-06-08 | 2010-12-08 | 江苏新康华机械有限公司 | Process for casting U-shaped frame of wind power generation equipment |
| CN102764855A (en) * | 2012-07-24 | 2012-11-07 | 滁州金诺实业有限公司 | Technique for embedding stainless steel tube in large-size aluminum alloy casting blank |
| CN102744374A (en) * | 2012-07-25 | 2012-10-24 | 南车戚墅堰机车有限公司 | Manufacturing method for casting branch oilway in body of diesel engine |
| CN103170576A (en) * | 2013-04-02 | 2013-06-26 | 衡阳风顺车桥有限公司 | Technology for casting thick-wall steel casting with thin and long inner hole |
| CN104999058A (en) * | 2015-07-07 | 2015-10-28 | 江苏中通管业有限公司 | Manufacturing method for steel casting mould cooling water pipe |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570689A (en) * | 2017-09-05 | 2018-01-12 | 合肥江淮铸造有限责任公司 | A kind of casting air flue processing method |
| CN108941515A (en) * | 2018-09-13 | 2018-12-07 | 南通华东油压科技有限公司 | A kind of casting method of the mechanical-hydraulic valve body with seamless steel pipe |
| CN109332605A (en) * | 2018-12-06 | 2019-02-15 | 扬州峰明光电新材料有限公司 | The casting method of aluminium alloy engine shell |
| CN111531131A (en) * | 2020-05-29 | 2020-08-14 | 江苏恒立液压股份有限公司 | Casting sand core of plate valve and casting process of plate valve |
| CN111531131B (en) * | 2020-05-29 | 2022-05-31 | 江苏恒立液压股份有限公司 | Casting sand core of plate valve and casting process of plate valve |
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Application publication date: 20170818 |