CN106077422A - A kind of production technology of the sand foundry goods pig iron - Google Patents
A kind of production technology of the sand foundry goods pig iron Download PDFInfo
- Publication number
- CN106077422A CN106077422A CN201610471691.2A CN201610471691A CN106077422A CN 106077422 A CN106077422 A CN 106077422A CN 201610471691 A CN201610471691 A CN 201610471691A CN 106077422 A CN106077422 A CN 106077422A
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- CN
- China
- Prior art keywords
- foundry goods
- model
- sand
- gravel
- production technology
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Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention provides the production technology of a kind of sand foundry goods pig iron, and operating procedure is as follows: 1) put into bottom placing trough by model model, and by sand, is then compacted by gravel with machine, then takes placing trough inversion, is taken out by the model model bottom former placing trough；2) sandy gravel stratum is being set at the top taking out model model, and reserved mould road junction；3) molten iron after melting is poured in mould road；4), after the molten iron until Mo Daonei is cooled into foundry goods, the gravel of cast(ing) surface is scraped off；5) by step 4) foundry goods that processes carries out cutting, thick grinding process；6) foundry goods after polishing is carried out tempering operation；7) foundry goods after tempering is carried out oil cold；8) foundry goods after processing carries out thin grinding and buffing.Whole processing technique effectively achieves the structural strength to foundry goods and is promoted further, during actual commercial production processing, can carry out further genralrlization application.
Description
Technical field
The present invention relates to casting iron craft field, be specifically related to the production technology of a kind of sand foundry goods pig iron.
Background technology
Along with present industrialization, informationalized development so that the level of scientific and technological progress the most day by day promotes, along with information
While the development changed, traditional manufacturing industry is by bigger strike, it is impossible to obtain good development, but the sending out of Information technology
Exhibition, be unable to do without manufacturing support.
Sand casting is with a long history, before can tracing back to thousand of year；Its range of application of opinion, then can say the most not
With.Sand casting is to make Modeling Material by clay binding sand to produce foundry goods, is time-honored process, is also that range of application is the widest
Process.But the method for sand casting now is relatively simple, it is difficult to the lifting of structural strength when realizing casting for foundry goods, one
As sand casting method when casting, easily produce the mistake that foundry goods molding is fixing, and when layer of sand is thicker, also result in foundry goods at sand
Poor air permeability in Ceng, is easily generated pore, also can affect the integrally-built intensity of foundry goods.
Summary of the invention
For the deficiencies in the prior art, the invention provides the production technology of a kind of sand foundry goods pig iron so that pearlite ash
The structural strength of cast iron is promoted further.
For realizing object above, the present invention is achieved by the following technical programs:
A kind of production technology of the sand foundry goods pig iron, operating procedure is as follows:
1) model model is put into bottom placing trough, and by sand, then with machine, gravel is compacted, then takes placing trough
It is inverted, the model model bottom former placing trough is taken out；
2) sandy gravel stratum is being set at the top taking out model model, and reserved mould road junction；
3) molten iron after melting is poured in mould road；
4), after the molten iron until Mo Daonei is cooled into foundry goods, the gravel of cast(ing) surface is scraped off；
5) by step 4) foundry goods that processes carries out cutting, thick grinding process；
6) foundry goods after polishing is carried out tempering operation；
7) foundry goods after tempering is carried out oil cold；
8) foundry goods after processing carries out thin grinding and buffing.
Preferably, described gravel is the mixing of emergy and chromite sand, and the amount ratio of gravel and binding agent is 5:
1。
Preferably, described sandy gravel stratum arranges some groups of shallow bore holes, effectively realizes in casting cycle, the air of Mo Daonei with
The external world is mutually communicated.
Preferably, described temper uses 2 times.
Preferably, described step 6) before operation, need foundry goods is carried out repair welding process, effectively reduce and again returning
During fire, the STRESS VARIATION of generation.
Preferably, described model model and the foundry goods standard of technological design, reserve 2-3mm allowance, be for reducing
Foundry goods in irrigation process, the contraction of foundry goods, cause the standard size generation deviation of foundry goods.
The invention provides the production technology of a kind of sand foundry goods pig iron, by technique using gravel be emergy and ferrochrome
The mixing of ore in sand form, and the amount ratio of gravel and binding agent is 5:1, effectively prevent foundry goods when pouring, can effectively realize sand
The aeration of gravel, is placed on air in the mould road of molding in casting cycle and is difficult to get rid of, and produces pore, moreover it is possible to after realizing compacting
Mould has certain structural strength, prevents the molten iron of molten state from impacting, causes the mould of gravel cave in and deform.Whole
Operating procedure is simple, uses processing can carry out industrial further genralrlization application.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the enforcement of the present invention
Example, is clearly and completely described the technical scheme in the embodiment of the present invention.Based on the embodiment in the present invention, this area
The every other embodiment that those of ordinary skill is obtained under not making creative work premise, broadly falls into present invention protection
Scope.
Embodiment 1:
The present embodiment provides the production technology of a kind of sand foundry goods pig iron, and operating procedure is as follows:
1) model model is put into bottom placing trough, and by sand, then with machine, gravel is compacted, then takes placing trough
It is inverted, the model model bottom former placing trough is taken out；
2) sandy gravel stratum is being set at the top taking out model model, and reserved mould road junction；
3) molten iron after melting is poured in mould road；
4), after the molten iron until Mo Daonei is cooled into foundry goods, the gravel of cast(ing) surface is scraped off；
5) by step 4) foundry goods that processes carries out cutting, thick grinding process；
6) foundry goods after polishing is carried out tempering operation；
7) foundry goods after tempering is carried out oil cold；
8) foundry goods after processing carries out thin grinding and buffing.
Embodiment 2:
The present embodiment provides the production technology of a kind of sand foundry goods pig iron, and operating procedure is as follows:
1) model model is put into bottom placing trough, and by sand, then with machine, gravel is compacted, then takes placing trough
It is inverted, the model model bottom former placing trough is taken out；
2) sandy gravel stratum is being set at the top taking out model model, and reserved mould road junction；
3) molten iron after melting is poured in mould road；
4), after the molten iron until Mo Daonei is cooled into foundry goods, the gravel of cast(ing) surface is scraped off；
5) by step 4) foundry goods that processes carries out cutting, thick grinding process；
6) foundry goods after polishing is carried out tempering operation；
7) foundry goods after tempering is carried out oil cold；
8) foundry goods after processing carries out thin grinding and buffing.
Temper uses 2 times.
Step 6) operation before, need foundry goods is carried out repair welding process.
Model model and the foundry goods standard of technological design, reserve 2-3mm allowance.
Embodiment 3:
The present embodiment provides the production technology of a kind of sand foundry goods pig iron, and operating procedure is as follows:
1) model model is put into bottom placing trough, and by sand, then with machine, gravel is compacted, then takes placing trough
It is inverted, the model model bottom former placing trough is taken out；
2) sandy gravel stratum is being set at the top taking out model model, and reserved mould road junction；
3) molten iron after melting is poured in mould road；
4), after the molten iron until Mo Daonei is cooled into foundry goods, the gravel of cast(ing) surface is scraped off；
5) by step 4) foundry goods that processes carries out cutting, thick grinding process；
6) foundry goods after polishing is carried out tempering operation；
7) foundry goods after tempering is carried out oil cold；
8) foundry goods after processing carries out thin grinding and buffing.
Gravel is the mixing of emergy and chromite sand, and the amount ratio of gravel and binding agent is 5:1.
Some groups of shallow bore holes are set on sandy gravel stratum.
Temper uses 2 times.
Embodiment 4:
The present embodiment provides the production technology of a kind of sand foundry goods pig iron, and operating procedure is as follows:
1) model model is put into bottom placing trough, and by sand, then with machine, gravel is compacted, then takes placing trough
It is inverted, the model model bottom former placing trough is taken out；
2) sandy gravel stratum is being set at the top taking out model model, and reserved mould road junction；
3) molten iron after melting is poured in mould road；
4), after the molten iron until Mo Daonei is cooled into foundry goods, the gravel of cast(ing) surface is scraped off；
5) by step 4) foundry goods that processes carries out cutting, thick grinding process；
6) foundry goods after polishing is carried out tempering operation；
7) foundry goods after tempering is carried out oil cold；
8) foundry goods after processing carries out thin grinding and buffing.
Gravel is the mixing of emergy and chromite sand, and the amount ratio of gravel and binding agent is 5:1.
Some groups of shallow bore holes are set on sandy gravel stratum.
Temper uses 2 times.
Step 6) operation before, need foundry goods is carried out repair welding process.
Model model and the foundry goods standard of technological design, reserve 2-3mm allowance.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these amendment or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. the production technology of a sand foundry goods pig iron, it is characterised in that operating procedure is as follows:
1) model model is put into bottom placing trough, and by sand, then with machine, gravel is compacted, then takes to fall placing trough
Put, the model model bottom former placing trough is taken out；
2) sandy gravel stratum is being set at the top taking out model model, and reserved mould road junction；
3) molten iron after melting is poured in mould road；
4), after the molten iron until Mo Daonei is cooled into foundry goods, the gravel of cast(ing) surface is scraped off；
5) by step 4) foundry goods that processes carries out cutting, thick grinding process；
6) foundry goods after polishing is carried out tempering operation；
7) foundry goods after tempering is carried out oil cold；
8) foundry goods after processing carries out thin grinding and buffing.
2. the production technology of the sand foundry goods pig iron as claimed in claim 1, it is characterised in that described gravel is emergy and chromium
The mixing of iron ore, and the amount ratio of gravel and binding agent is 5:1.
3. the production technology of the sand foundry goods pig iron as claimed in claim 1, it is characterised in that arrange some on described sandy gravel stratum
Group shallow bore hole.
4. the production technology of the sand foundry goods pig iron as claimed in claim 1, it is characterised in that described temper uses 2 times.
5. the production technology of the sand foundry goods pig iron as claimed in claim 1, it is characterised in that described step 6) before operation, need
Foundry goods is carried out repair welding process.
6. the production technology of the sand foundry goods pig iron as claimed in claim 1, it is characterised in that described model model sets with technique
The foundry goods standard of meter, reserved 2-3mm allowance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471691.2A CN106077422A (en) | 2016-06-23 | 2016-06-23 | A kind of production technology of the sand foundry goods pig iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471691.2A CN106077422A (en) | 2016-06-23 | 2016-06-23 | A kind of production technology of the sand foundry goods pig iron |
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| Publication Number | Publication Date |
|---|---|
| CN106077422A true CN106077422A (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610471691.2A Pending CN106077422A (en) | 2016-06-23 | 2016-06-23 | A kind of production technology of the sand foundry goods pig iron |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586414A (en) * | 2013-11-04 | 2014-02-19 | 沈阳化工大学 | Method for production of small and medium-sized steel castings by coated sand technology |
| CN104493087A (en) * | 2014-12-24 | 2015-04-08 | 西安合力汽车配件有限公司 | Method for producing casting by pre-coated sand shell mold |
| CN105436411A (en) * | 2015-12-30 | 2016-03-30 | 青岛博泰美联化工技术有限公司 | High-permeability evaporative pattern casting method |
| CN105695848A (en) * | 2015-11-29 | 2016-06-22 | 郑臣钏 | Flange casting process |
| EP3040136A1 (en) * | 2013-08-30 | 2016-07-06 | Asahi Yukizai Corporation | Molding method for laminated mold |
-
2016
- 2016-06-23 CN CN201610471691.2A patent/CN106077422A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3040136A1 (en) * | 2013-08-30 | 2016-07-06 | Asahi Yukizai Corporation | Molding method for laminated mold |
| CN103586414A (en) * | 2013-11-04 | 2014-02-19 | 沈阳化工大学 | Method for production of small and medium-sized steel castings by coated sand technology |
| CN104493087A (en) * | 2014-12-24 | 2015-04-08 | 西安合力汽车配件有限公司 | Method for producing casting by pre-coated sand shell mold |
| CN105695848A (en) * | 2015-11-29 | 2016-06-22 | 郑臣钏 | Flange casting process |
| CN105436411A (en) * | 2015-12-30 | 2016-03-30 | 青岛博泰美联化工技术有限公司 | High-permeability evaporative pattern casting method |
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Application publication date: 20161109 |