CN108311646A - A kind of large-sized numerical control grinder bed disappearance proplasm preparation method - Google Patents
A kind of large-sized numerical control grinder bed disappearance proplasm preparation method Download PDFInfo
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- CN108311646A CN108311646A CN201810330244.4A CN201810330244A CN108311646A CN 108311646 A CN108311646 A CN 108311646A CN 201810330244 A CN201810330244 A CN 201810330244A CN 108311646 A CN108311646 A CN 108311646A
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- Prior art keywords
- sprue
- runner
- molten iron
- moulding
- circular cross
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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
- B22C9/04—Use of lost patterns
-
- 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
Abstract
The invention discloses a kind of large-sized numerical control grinder bed disappearance proplasm preparation method, the concrete operation step is：Step 1：Evaporative pattern reality sample moulding is placed into sandbox, resin sand is then added and carries out moulding, step 2：It after the completion of moulding, is poured into a mould under negative pressure, evaporative pattern reality sample moulding gasification, then by pouring molten iron inside the cavity where casting equipment to evaporative pattern reality sample moulding, molten iron occupies the position of evaporative pattern reality sample moulding, step 3：When cast, molten iron is introduced by the first sprue, the second sprue and the 7th sprue respectively, is heated by heating layer outside the first sprue, the second sprue and the 7th sprue.Molten iron of the present invention is introduced by the first sprue, the second sprue and the 7th sprue respectively, second sprue enters circular cross-runner by the 4th sprue of cross gate both ends again, most enter cavity through multiple ingates afterwards, realize the anti-pouring technology that drenches with rain, to ensure bed ways, punching is full rapidly, and final product quality is high.
Description
Technical field
The present invention relates to large-sized numerical control grinder bed manufacture field, more particularly to a kind of large-sized numerical control grinder bed evaporative pattern
Casting mold preparation method.
Background technology
Lost foam casting (also known as cavityless casting) is by paraffin similar with casting dimension shape or bubbles model bonding group
Synthetic model cluster is embedded in vibration molding in drystone sand, pours into a mould under negative pressure, make model gas after brushing fireproof coating and drying
Change, liquid metals occupies modal position, the novel casting method of casting is formed after solidification is cooling, lost foam casting is a kind of nearly nothing
The new process of surplus, precise forming, the technique without modulus, without die joint, without sand core, thus casting do not have overlap, burr and
Pattern draft, and reduce due to core combination and caused by scale error.Surface roughness are up to Ra3.2 to 12.5 μ
m；Casting dimension accuracy is up to CT7 to 9；Allowance is up to 1.5 to 2mm, can greatly reduce the expense of mechanical processing, and pass
System sand mould casting method is compared, it is possible to reduce 40% to 50% machining time, existing large-sized numerical control grinder bed are being cast
Because casting is excessive when making, the machining accuracy of casting is not high, and when casting is cast using mold, because of its larger table
Area, the air generated when molten iron can be caused to be flowed when entering cavity cause cast-internal to have gap, and can not be fast
Speed is full of cavity, leads to Mechanical processing of casting precision and of low quality, product surface is more coarse, and there is gap inside, leads
Cause product quality unqualified.
Therefore, inventing a kind of large-sized numerical control grinder bed disappearance proplasm preparation method, have very much must to solve the above problems
It wants.
Invention content
It is above-mentioned to solve the purpose of the present invention is to provide a kind of large-sized numerical control grinder bed disappearance proplasm preparation method
The problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of large-sized numerical control grinder bed disappearance proplasm
Preparation method, the concrete operation step are：
Step 1：Evaporative pattern reality sample moulding is placed into sandbox, resin sand is then added and carries out moulding；
Step 2：It after the completion of moulding, is poured into a mould under negative pressure, evaporative pattern reality sample moulding gasification, then by casting equipment to evaporative pattern
Pouring molten iron inside cavity where real sample moulding, molten iron occupy the position of evaporative pattern reality sample moulding；
Step 3：When cast, molten iron is introduced by the first sprue, the second sprue and the 7th sprue respectively, and first directly pours
It is heated by heating layer outside road, the second sprue and the 7th sprue；
Step 4：Molten iron inside second sprue enters in cross gate, is directly poured subsequently into the 4th of cross gate bottom both ends the
It inside road, finally enters in circular cross-runner, is added by heating layer outside cross gate, the 4th sprue and circular cross-runner
Heat；
Step 5：The molten iron entered inside circular cross-runner in step 4 is entered by multiple ingates inside cavity again, is realized
The anti-pouring technology that drenches with rain is heated outside ingate by heating layer to ensure that cavity quickly fills with；
Step 6：After casting complete, it is cooled and shaped, then demoulded.
The present invention also provides a kind of device of large-sized numerical control grinder bed disappearance proplasm preparation method, including first straight
Running channel, the second sprue and the 7th sprue, second sprue bottom are fixed with cross gate, the cross gate bottom two
End is fixed with the 4th sprue, and first sprue, the 4th sprue and the 7th sprue bottom are fixed with annular cross
Running channel, the circular cross-runner bottom are fixed with multiple ingates.
Preferably, first sprue and the 7th sprue are separately positioned on circular cross-runner both sides, the cross gate
It is set to circular cross-runner center, second sprue is set to cross gate center.
Preferably, the circular cross-runner is fixedly installed at the top of sandbox.
Preferably, the heating layer is set as heating cavity, and the heating cavity is internally provided with heater strip or conduction oil.
The technique effect and advantage of the present invention：
1, by using resin-bonded sand cast form treatment process, running gate system, casting device and lathe bed integrated molding are conducive to lathe bed
Processing casting, save space, easy to use, final product quality is higher；
2, molten iron is introduced by the first sprue, the second sprue and the 7th sprue respectively, and the second sprue is poured by horizontal again
4th sprue of road both ends bottom enters circular cross-runner, and molten iron enters cavity by several ingates again, realizes anti-rain
Pouring technology is drenched, punching is full rapidly to ensure bed ways, reduces the influence that bubble casts lathe bed, lathe bed casting process structure
Simply, final product quality is higher.
Description of the drawings
Fig. 1 is the whole front view of the present invention.
Fig. 2 is the overall top view of the present invention.
Fig. 3 is the ingate structural schematic diagram of the present invention.
Fig. 4 is the heating schematic diagram of a layer structure of the present invention.
In figure：1 first sprue, 2 second sprues, 3 cross gates, 4 the 4th sprues, 5 circular cross-runners, 6 ingates,
7 the 7th sprues, 8 heating layers.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1：
It is according to a kind of large-sized numerical control grinder bed disappearance proplasm preparation method, the concrete operation step shown in 1-3：
Step 1：Evaporative pattern reality sample moulding is placed into sandbox, resin sand is then added and carries out moulding；
Step 2：It after the completion of moulding, is poured into a mould under negative pressure, evaporative pattern reality sample moulding gasification, then by casting equipment to evaporative pattern
Pouring molten iron inside cavity where real sample moulding, molten iron occupy the position of evaporative pattern reality sample moulding；
Step 3：When cast, molten iron is introduced by the first sprue 1, the second sprue 2 and the 7th sprue 7 respectively, and first is straight
It is heated by heating layer 8 outside running channel 1, the second sprue 2 and the 7th sprue 7；
Step 4：Molten iron inside second sprue 2 enters in cross gate 3, straight subsequently into the 4th of 3 bottom both ends of cross gate the
It inside running channel 4, finally enters in circular cross-runner 5, passes through heating outside cross gate 3, the 4th sprue 4 and circular cross-runner 5
Layer 8 is heated；
Step 5：Enter the molten iron inside circular cross-runner 5 in step 4 again to enter inside cavity by multiple ingates 6, it is real
The now anti-pouring technology that drenches with rain is heated outside ingate 6 by heating layer 8 to ensure that cavity quickly fills with；
Step 6：After casting complete, it is cooled and shaped, then demoulded.
Further, in the above-mentioned technical solutions, it disappears and molds the present invention also provides a kind of large-sized numerical control grinder bed
The device of type preparation method, including the first sprue 1, the second sprue 2 and the 7th sprue 7,2 bottom of the second sprue
It is fixed with cross gate 3,3 bottom both ends of the cross gate are fixed with the 4th sprue 4, and first sprue the 1, the 4th is straight
Running channel 4 and 7 bottom of the 7th sprue are fixed with circular cross-runner 5, and 5 bottom of the circular cross-runner is fixed in multiple and pours
Road 6 makes molten iron be introduced respectively by the first sprue 1, the second sprue 2 and the 7th sprue 7, subsequently into cross gate 3, then
It inside the 4th sprue 4 by 3 bottom both ends of cross gate, finally enters in circular cross-runner 5, inside circular cross-runner 5
Molten iron is uniformly distributed in multiple ingates 6, the anti-cast that drenches with rain is carried out, to ensure that cavity quickly fills with.
Further, in the above-mentioned technical solutions, first sprue, 1 and the 7th sprue 7 is separately positioned on annular
5 both sides of cross gate, the cross gate 3 are set to 5 center of circular cross-runner, and second sprue 2 is set to cross gate 3
Center when making molten iron flow, is evenly distributed inside each running channel, to keep cast uniform.
Further, in the above-mentioned technical solutions, the circular cross-runner 5 is fixedly installed at the top of sandbox, makes entirely to pour
Injection system, casting device and sandbox integrated molding are conducive to the processing casting of lathe bed, save space, easy to use, at quality
Amount is higher.
It is described to add the present invention provides a kind of large-sized numerical control grinder bed disappearance proplasm preparation method as shown in Figure 4
Thermosphere 8 is set as heating cavity, and the heating cavity is internally provided with heater strip, heating temperature homogeneous constant.
Embodiment 2：
As different from Example 1, the heating layer 8 is set as heating cavity, and the heating cavity is internally provided with conduction oil, leads
Thermostabilization, heat transfer property is good, and saves energy consumption.
Operation principle of the present invention：
First evaporative pattern reality sample moulding is placed into sandbox, resin sand is then added and carries out moulding, after the completion of moulding, is poured under negative pressure
Note, evaporative pattern reality sample moulding gasification, then by pouring molten iron inside cavity where from casting equipment to evaporative pattern reality sample moulding,
Molten iron occupies the position of evaporative pattern reality sample moulding, and when cast, molten iron passes through the first sprue 1, the second sprue 2 and the 7th respectively
Sprue 7 introduces, and is heated by heating layer 8 outside the first sprue 1, the second sprue 2 and the 7th sprue 7, second
Molten iron inside sprue 2 enters in cross gate 3, inside the 4th sprue 4 at 3 bottom both ends of cross gate, finally
Into in circular cross-runner 5, is heated, poured by heating layer 8 outside cross gate 3, the 4th sprue 4 and circular cross-runner 5
After the completion of note, it is cooled and shaped, then demoulded.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (5)
1. a kind of large-sized numerical control grinder bed disappearance proplasm preparation method, it is characterised in that：The concrete operation step is：
Step 1：Evaporative pattern reality sample moulding is placed into sandbox, resin sand is then added and carries out moulding；
Step 2：It after the completion of moulding, is poured into a mould under negative pressure, evaporative pattern reality sample moulding gasification, then by casting equipment to evaporative pattern
Pouring molten iron inside cavity where real sample moulding, molten iron occupy the position of evaporative pattern reality sample moulding；
Step 3：When cast, molten iron passes through the first sprue respectively（1）, the second sprue（2）With the 7th sprue（7）It introduces,
First sprue（1）, the second sprue（2）With the 7th sprue（7）Outside passes through heating layer（8）It is heated；
Step 4：Second sprue（2）Internal molten iron enters cross gate（3）It is interior, subsequently into cross gate（3）Bottom both ends
4th sprue（4）Inside finally enters circular cross-runner（5）It is interior, cross gate（3）, the 4th sprue（4）And circular cross-runner
（5）Outside passes through heating layer（8）It is heated；
Step 5：Enter circular cross-runner in step 4（5）Internal molten iron passes through multiple ingates again（6）Into in cavity
Portion realizes the anti-pouring technology that drenches with rain, to ensure that cavity quickly fills with, ingate（6）Outside passes through heating layer（8）Added
Heat；
Step 6：After casting complete, it is cooled and shaped, then demoulded.
2. according to claim 1 realize a kind of device of large-sized numerical control grinder bed disappearance proplasm preparation method,
It is characterized in that：Including the first sprue（1）, the second sprue（2）With the 7th sprue（7）, second sprue（2）Bottom
It is fixed with cross gate（3）, the cross gate（3）Bottom both ends are fixed with the 4th sprue（4）, first sprue
（1）, the 4th sprue（4）With the 7th sprue（7）Bottom is fixed with circular cross-runner（5）, the circular cross-runner（5）Bottom
Portion is fixed with multiple ingates（6）.
3. according to claim 2 realize a kind of device of large-sized numerical control grinder bed disappearance proplasm preparation method,
It is characterized in that：First sprue（1）With the 7th sprue（7）It is separately positioned on circular cross-runner（5）Both sides, it is described horizontal to pour
Road（3）It is set to circular cross-runner（5）Center, second sprue（2）It is set to cross gate（3）Center.
4. according to claim 1 realize a kind of device of large-sized numerical control grinder bed disappearance proplasm preparation method,
It is characterized in that：The circular cross-runner（5）It is fixedly installed at the top of sandbox.
5. according to claim 1 realize a kind of device of large-sized numerical control grinder bed disappearance proplasm preparation method,
It is characterized in that：The heating layer（8）It is set as heating cavity, the heating cavity is internally provided with heater strip or conduction oil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810330244.4A CN108311646A (en) | 2018-04-13 | 2018-04-13 | A kind of large-sized numerical control grinder bed disappearance proplasm preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810330244.4A CN108311646A (en) | 2018-04-13 | 2018-04-13 | A kind of large-sized numerical control grinder bed disappearance proplasm preparation method |
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| CN201810330244.4A Pending CN108311646A (en) | 2018-04-13 | 2018-04-13 | A kind of large-sized numerical control grinder bed disappearance proplasm preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687376A (en) * | 2020-06-29 | 2020-09-22 | 肥城市宇通机械有限公司 | Bottom pouring cap structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201482922U (en) * | 2009-08-05 | 2010-05-26 | 广西玉柴机器股份有限公司 | Structure for casting large-sized front end box of ship engine |
| CN103639362A (en) * | 2013-12-19 | 2014-03-19 | 泊头市东建铸造有限责任公司 | Full-mold casting method of resin sand without vent hole |
| CN105215287A (en) * | 2015-11-05 | 2016-01-06 | 埃维柯精密铸造（安徽）有限公司 | A kind of valve body evaporative pattern and using method thereof |
| CN107321926A (en) * | 2017-08-09 | 2017-11-07 | 日月重工股份有限公司 | The casting system of injection machine class template casting and utilize its casting method |
| CN107737873A (en) * | 2017-10-19 | 2018-02-27 | 芜湖久弘重工股份有限公司 | A kind of cavityless casting method of Large Grinder Body |
| CN208288929U (en) * | 2018-04-13 | 2018-12-28 | 芜湖久弘重工股份有限公司 | A kind of large-sized numerical control grinder bed disappearance proplasm |
-
2018
- 2018-04-13 CN CN201810330244.4A patent/CN108311646A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201482922U (en) * | 2009-08-05 | 2010-05-26 | 广西玉柴机器股份有限公司 | Structure for casting large-sized front end box of ship engine |
| CN103639362A (en) * | 2013-12-19 | 2014-03-19 | 泊头市东建铸造有限责任公司 | Full-mold casting method of resin sand without vent hole |
| CN105215287A (en) * | 2015-11-05 | 2016-01-06 | 埃维柯精密铸造（安徽）有限公司 | A kind of valve body evaporative pattern and using method thereof |
| CN107321926A (en) * | 2017-08-09 | 2017-11-07 | 日月重工股份有限公司 | The casting system of injection machine class template casting and utilize its casting method |
| CN107737873A (en) * | 2017-10-19 | 2018-02-27 | 芜湖久弘重工股份有限公司 | A kind of cavityless casting method of Large Grinder Body |
| CN208288929U (en) * | 2018-04-13 | 2018-12-28 | 芜湖久弘重工股份有限公司 | A kind of large-sized numerical control grinder bed disappearance proplasm |
Non-Patent Citations (1)
| Title |
|---|
| 东北工学院宫克强: "《高等学校试用教材 特种铸造》", 北京：北京理工大学出版社, pages: 203 - 204 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687376A (en) * | 2020-06-29 | 2020-09-22 | 肥城市宇通机械有限公司 | Bottom pouring cap structure |
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