CN104607593A - High-power diesel engine cylinder liner casting production method - Google Patents
High-power diesel engine cylinder liner casting production method Download PDFInfo
- Publication number
- CN104607593A CN104607593A CN201310539083.7A CN201310539083A CN104607593A CN 104607593 A CN104607593 A CN 104607593A CN 201310539083 A CN201310539083 A CN 201310539083A CN 104607593 A CN104607593 A CN 104607593A
- Authority
- CN
- China
- Prior art keywords
- diesel engine
- engine cylinder
- parts
- cylinder liner
- power diesel
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a high-power diesel engine cylinder liner casting production method which belongs to the casting technical field. The method is as follows: 10-20 parts of pig iron, 40-50 parts of steel scrap and 40-50 parts of recycled material are mixed, a recarburizing agent is added into a cold furnace material for melting, molten iron is sampled for spectral test, and content of each element is adjusted to reach a predetermined value. According to the new technology, the proportioning process of a small amount of pig iron and a larger proportion of scrap steel and recycled material is used, a recarburizing method is used to adjust casting carbon containing content to obtain high quality molten iron meeting standard requirements, and the quality of the casted cylinder liner is improved.
Description
Technical field
The invention belongs to casting technology field, be specifically related to a kind of sand casting manufacturing process of large power diesel engine cylinder jacket foundry goods.
Background technology
Present its mechanical performance of large power diesel engine cylinder jacket foundry goods is poor, be not as powerful just like that as forging, comparatively outstanding thick in a organized way, defect is more, when casting grittiness cast member, be difficult to realize batch production, can only single-piece, produce in small batches.Therefore, cause larger labour intensity to workman, quality differs, quality is unstable, the other operation of production of cast member is comparatively complicated, so the factor affecting its quality is a lot, easily produces defect.
Summary of the invention
In order to overcome the above-mentioned technical problem that prior art field exists, the object of the invention is to, a kind of new technology is provided namely to adopt the steel scrap of a small amount of pig iron and larger proportioning, the proportioning process of foundry returns, adopt the method for carburetting to adjust foundry goods phosphorus content to obtain the high-quality molten iron meeting standard-required, improve the quality of the cylinder jacket of casting.
The molding sand method for casting production of large power diesel engine cylinder jacket foundry goods provided by the invention, comprises the following steps:
(1) with parts by weight, after pig iron 10-20 part, steel scrap 40-50 part, the mixing of foundry returns 40-50 part, in cold stock, add carburant melt, after after molten iron is melting, spectrum chemical examination is carried out in sampling, each constituent content of adjustment reaches: C:3.05-3.15%, Si:1.2-1.35%, Mn:0.5-0.6%, P:0.23-0.27%, S:0.05-0.06%, Cu:1.25-1.35%, V:0.14-0.16%, B:0.026-0.032%, and the molten iron prepared is warming up to 1450-1550 DEG C;
(2) cast after calm 10 minutes.
Described large power diesel engine cylinder jacket dish core molding sand used is clay-bonded sand, and described disk hole core molding sand used is resin sand.
The molding sand method for casting production of large power diesel engine cylinder jacket foundry goods provided by the invention, its beneficial effect is, overcome prior art processing high-power cylinder jacket of diesel engine bolt hole, operation is more, the problem that workload is large, improves production efficiency; Adopt a small amount of pig iron and the steel scrap of larger proportioning, the proportioning process of foundry returns, adopt the method for carburetting to adjust foundry goods phosphorus content to obtain the high-quality molten iron meeting standard-required, improve the quality of the cylinder jacket of casting.
Detailed description of the invention
Below in conjunction with an embodiment, the molding sand method for casting production of large power diesel engine cylinder jacket foundry goods provided by the invention is described in detail.
Embodiment
The molding sand method for casting production of the large power diesel engine cylinder jacket foundry goods of the present embodiment, comprises the following steps:
(1) with parts by weight, after the pig iron 20 parts, steel scrap 50 parts, foundry returns 50 parts mixing, in cold stock, add carburant melt, after after molten iron is melting, spectrum chemical examination is carried out in sampling, each constituent content of adjustment reaches: C:-3.15%, Si:-1.35%, Mn:0.6%, P:0.27%, S:0.06%, Cu:1.25%, V:0.14%, B:0.032%, and the molten iron prepared is warming up to 1500 DEG C;
(2) cast after calm 10 minutes.
Described large power diesel engine cylinder jacket dish core molding sand used is clay-bonded sand, and described disk hole core molding sand used is resin sand.
The molding sand method for casting production of large power diesel engine cylinder jacket foundry goods, overcome prior art processing high-power cylinder jacket of diesel engine bolt hole, operation is more, the problem that workload is large; Adopt the method for carburetting to adjust foundry goods phosphorus content to obtain the high-quality molten iron meeting standard-required, improve the quality of the cylinder jacket of casting.
Claims (1)
1. a molding sand method for casting production for large power diesel engine cylinder jacket foundry goods, is characterized in that: said method comprising the steps of:
(1) with parts by weight, after pig iron 10-20 part, steel scrap 40-50 part, the mixing of foundry returns 40-50 part, in cold stock, add carburant melt, after after molten iron is melting, spectrum chemical examination is carried out in sampling, each constituent content of adjustment reaches: C:3.05-3.15%, Si:1.2-1.35%, Mn:0.5-0.6%, P:0.23-0.27%, S:0.05-0.06%, Cu:1.25-1.35%, V:0.14-0.16%, B:0.026-0.032%, and the molten iron prepared is warming up to 1500 DEG C;
(2) cast after calm 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539083.7A CN104607593A (en) | 2013-11-05 | 2013-11-05 | High-power diesel engine cylinder liner casting production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539083.7A CN104607593A (en) | 2013-11-05 | 2013-11-05 | High-power diesel engine cylinder liner casting production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104607593A true CN104607593A (en) | 2015-05-13 |
Family
ID=53142386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310539083.7A Pending CN104607593A (en) | 2013-11-05 | 2013-11-05 | High-power diesel engine cylinder liner casting production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104607593A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234366A (en) * | 2015-11-13 | 2016-01-13 | 中原内配集团安徽有限责任公司 | Manufacture technology for engine cylinder sleeve with burry surface |
| CN106041012A (en) * | 2016-06-30 | 2016-10-26 | 中原内配集团安徽有限责任公司 | Production method of wear-resistant cylinder sleeve |
| CN106756453A (en) * | 2016-11-28 | 2017-05-31 | 中国船舶重工集团公司第十二研究所 | A kind of thick and large section gray cast iron cylinder jacket organizational controls method |
-
2013
- 2013-11-05 CN CN201310539083.7A patent/CN104607593A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234366A (en) * | 2015-11-13 | 2016-01-13 | 中原内配集团安徽有限责任公司 | Manufacture technology for engine cylinder sleeve with burry surface |
| CN106041012A (en) * | 2016-06-30 | 2016-10-26 | 中原内配集团安徽有限责任公司 | Production method of wear-resistant cylinder sleeve |
| CN106756453A (en) * | 2016-11-28 | 2017-05-31 | 中国船舶重工集团公司第十二研究所 | A kind of thick and large section gray cast iron cylinder jacket organizational controls method |
| CN106756453B (en) * | 2016-11-28 | 2018-06-22 | 中国船舶重工集团公司第十二研究所 | A kind of thick and large section gray cast iron cylinder jacket organizational controls method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |