CN105537515A - Casting method for pump body of water pump - Google Patents
Casting method for pump body of water pump Download PDFInfo
- Publication number
- CN105537515A CN105537515A CN201510944116.5A CN201510944116A CN105537515A CN 105537515 A CN105537515 A CN 105537515A CN 201510944116 A CN201510944116 A CN 201510944116A CN 105537515 A CN105537515 A CN 105537515A
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- CN
- China
- Prior art keywords
- sand
- casting
- prepared
- pump body
- mold
- 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.)
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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
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a casting method for a pump body of a water pump. According to the specific technical scheme of the casting method, first casting sand is prepared; a film-forming solution is prepared; an inner mold is prepared; an outer mold is manufactured through the first casting sand; and molten steel is poured into the mold made in the fourth step until forming is completed, and casting is finished. The casting method for the pump body of the water pump provided by the invention is simple and capable of casting the pump body of the water pump at a time, especially small or precise pumps, improving the production efficiency and relieving the labor intensity.
Description
Technical field
The invention belongs to casting field, particularly relate to a kind of casting method of pump body.
Background technology
Water pump is conveying liquid or the machinery making fluid pressurization.At present, the manufacturing for pump body mostly adopts pump body artificially to design and is divided into several pieces of parts, then the mode of welding is adopted several pieces of parts to be spliced into one, the water pump that this mode is produced, production efficiency is low, and labour intensity is large, the pump that this mode is produced simultaneously can only be in, mammoth pump, for small-sized or accurate pump, this mode obviously be can not produce.
In recent years, by introducing theory and the technology of " to cast generation weldering ", the manufacturing for the pump housing has had improvement to a certain degree, it is namely artificial that to divide the pump housing be inside and outside or up and down two pieces or several pieces, first by welding, a part of assembling parts is good, and then the part assembled is put into mould cast, the defect that this mode exists is that the place of welding before cast uses PT carrying out flaw detection, flawless, but foundry goods pressure testing is leaked after pouring molten iron, steel plate and foundry goods fusion area are also leaked, although can be repaired by follow-up means, but there is the low problem of production efficiency equally in this mode.
Sand casting is a kind of using sand as main Modeling Material, makes the conventional casting techniques of casting mold.The adaptability of sand casting is very wide, smallclothes, large part, simple part, Complex Parts, single-piece, all can adopt in enormous quantities.Compared to Castingother mode, it is lower to there is casting dimension accuracy in sand casting, and surface is the problem such as more coarse also, and this just makes sand casting be difficult to small-sized or accurate pump Foundry Production.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of casting method of pump body, and method is simple, can be disposable to pump body, the casting of especially small-sized or accurate pump, enhances productivity, reduces labour intensity.
For realizing above-mentioned technique effect, the invention provides a kind of casting method of pump body, its concrete technical scheme is as follows:
One, a molding sand is prepared: a molding sand by weight ratio, is respectively: roughing sand 95 ~ 99, bentonite 0.6 ~ 0.9, coal dust 0.3 ~ 0.5, CMS 0.5 ~ 1, bauxite 0.2-0.5, magnesia 0.3-0.5;
Two, coating liquid is prepared: the pH value of coating liquid is 0.5-5, and its composition is: nickelous sulfate: 3-30g/L; Sodium molybdate 1-10g/L: sodium thiosulfate 12-20g/L; Copper sulphate 12-30g/L; Selenous acid 1-15g/L; Selenium dioxide 6-25g/L; Organic acid 5-15g/L; Cerium oxide 0.5-5g/L;
Three, internal mold is prepared: use refractory ceramics to fire internal mold, internal mold makes hollow structure, and hollow space pours into glycerine cooling fluid;
Four, internal mold is made core, use molding sand to make external mold, to external mold internal layer and external mold and internal mold joint portion spray-on coating film, coating film thickness 6-150 μm, painting liquid temp is 15-50 degree Celsius, completes and obtains mould;
Five, toward the mould interior injection molten steel that the 4th step is made, until shaping, casting completes.
The present invention improves further, a moulding snad composition also can be by weight: old sand 85 ~ 95, roughing sand 3 ~ 10, bentonite 0.6 ~ 0.9, coal dust 0.3 ~ 0.5, CMS 0.5 ~ 1, bauxite 0.2-0.5, magnesia 0.3-0.5, old sand can be described as return sand again, it is the molding sand after casting falling sand separation, is beneficial to the circulation realizing resource.
The casting method of a kind of pump body proposed by the invention, method is simple, can be disposable to pump body, the casting of especially small-sized or accurate pump, enhances productivity, reduces labour intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pump body that the present invention has cast.
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
See accompanying drawing, a kind of casting method of pump body, its concrete technical scheme is as follows:
One, a molding sand is prepared: a molding sand by weight ratio, is respectively: roughing sand 95 ~ 99, bentonite 0.6 ~ 0.9, coal dust 0.3 ~ 0.5, CMS 0.5 ~ 1, bauxite 0.2-0.5, magnesia 0.3-0.5;
Two, coating liquid is prepared: the pH value of coating liquid is 0.5-5, and its composition is: nickelous sulfate: 3-30g/L; Sodium molybdate 1-10g/L: sodium thiosulfate 12-20g/L; Copper sulphate 12-30g/L; Selenous acid 1-15g/L; Selenium dioxide 6-25g/L; Organic acid 5-15g/L; Cerium oxide 0.5-5g/L;
Three, internal mold is prepared: use refractory ceramics to fire internal mold, internal mold makes hollow structure, and hollow space pours into glycerine cooling fluid;
Four, internal mold is made core, use molding sand to make external mold, to external mold internal layer and external mold and internal mold joint portion spray-on coating film, coating film thickness 6-150 μm, painting liquid temp is 15-50 degree Celsius, completes and obtains mould;
Five, toward the mould interior injection molten steel that the 4th step is made, until shaping, casting completes.
The present invention improves further, a moulding snad composition also can be by weight: old sand 85 ~ 95, roughing sand 3 ~ 10, bentonite 0.6 ~ 0.9, coal dust 0.3 ~ 0.5, CMS 0.5 ~ 1, bauxite 0.2-0.5, magnesia 0.3-0.5, old sand can be described as return sand again, it is the molding sand after casting falling sand separation, is beneficial to the circulation realizing resource.
The casting method of a kind of pump body proposed by the invention, method is simple, can be disposable to pump body, the casting of especially small-sized or accurate pump, enhances productivity, reduces labour intensity.
Claims (2)
1. a casting method for pump body, is characterized in that it comprises following processing step:
One, a molding sand is prepared: a molding sand by weight ratio, is respectively: roughing sand 95 ~ 99, bentonite 0.6 ~ 0.9, coal dust 0.3 ~ 0.5, CMS 0.5 ~ 1, bauxite 0.2-0.5, magnesia 0.3-0.5;
Two, coating liquid is prepared: the pH value of coating liquid is 0.5-5, and its composition is: nickelous sulfate: 3-30g/L; Sodium molybdate 1-10g/L: sodium thiosulfate 12-20g/L; Copper sulphate 12-30g/L; Selenous acid 1-15g/L; Selenium dioxide 6-25g/L; Organic acid 5-15g/L; Cerium oxide 0.5-5g/L;
Three, internal mold is prepared: use refractory ceramics to fire internal mold, internal mold makes hollow structure, and hollow space pours into glycerine cooling fluid;
Four, internal mold is made core, use molding sand to make external mold, to external mold internal layer and external mold and internal mold joint portion spray-on coating film, coating film thickness 6-150 μm, painting liquid temp is 15-50 degree Celsius, completes and obtains mould;
Five, toward the mould interior injection molten steel that the 4th step is made, until shaping, casting completes.
2. the casting method of a kind of pump body according to claim 1, is characterized in that a moulding snad composition also can be by weight: old sand 85 ~ 95, roughing sand 3 ~ 10, bentonite 0.6 ~ 0.9, coal dust 0.3 ~ 0.5, CMS 0.5 ~ 1, bauxite 0.2-0.5, magnesia 0.3-0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944116.5A CN105537515A (en) | 2015-12-15 | 2015-12-15 | Casting method for pump body of water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944116.5A CN105537515A (en) | 2015-12-15 | 2015-12-15 | Casting method for pump body of water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105537515A true CN105537515A (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510944116.5A Pending CN105537515A (en) | 2015-12-15 | 2015-12-15 | Casting method for pump body of water pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN105537515A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100895A (en) * | 2017-03-23 | 2017-08-29 | 江苏凌特精密机械有限公司 | A kind of ultra-thin water pump pump case |
| CN107234213A (en) * | 2017-07-25 | 2017-10-10 | 苏州市鑫渭阀门有限公司 | The ceramic precision casting method of the high pressure stainless steel pump housing |
| CN107282858A (en) * | 2017-06-14 | 2017-10-24 | 安徽华昊机械制造有限公司 | A kind of pump housing sand casting casting model powder |
| CN107398527A (en) * | 2017-06-14 | 2017-11-28 | 安徽华昊机械制造有限公司 | A kind of pump housing molding sand casting technique with fireproof coating |
| CN108687305A (en) * | 2018-06-14 | 2018-10-23 | 湖南精量重工科技有限公司 | A kind of casting method of pump body |
| CN109943768A (en) * | 2019-05-09 | 2019-06-28 | 南京正领汽车部件有限公司 | Lightweight automobile clamp production technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246518A (en) * | 2007-03-29 | 2008-10-16 | Kubota Corp | Method for producing hollow core, and method for producing component for fluid apparatus |
| CN101407015A (en) * | 2008-11-19 | 2009-04-15 | 大连新重集团有限公司 | Method for manufacturing vermicular cast iron trolley body |
| CN101791680A (en) * | 2010-01-12 | 2010-08-04 | 崇州市集贤华兴汽车配件厂 | Automobile brake drum moulding casting technology and moulding device thereof |
| CN103600040A (en) * | 2013-11-13 | 2014-02-26 | 宁波市鄞州科启动漫工业技术有限公司 | Method for casting mold |
| CN104475649A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Small steel cast molding sand and preparation method thereof |
-
2015
- 2015-12-15 CN CN201510944116.5A patent/CN105537515A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246518A (en) * | 2007-03-29 | 2008-10-16 | Kubota Corp | Method for producing hollow core, and method for producing component for fluid apparatus |
| CN101407015A (en) * | 2008-11-19 | 2009-04-15 | 大连新重集团有限公司 | Method for manufacturing vermicular cast iron trolley body |
| CN101791680A (en) * | 2010-01-12 | 2010-08-04 | 崇州市集贤华兴汽车配件厂 | Automobile brake drum moulding casting technology and moulding device thereof |
| CN103600040A (en) * | 2013-11-13 | 2014-02-26 | 宁波市鄞州科启动漫工业技术有限公司 | Method for casting mold |
| CN104475649A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Small steel cast molding sand and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100895A (en) * | 2017-03-23 | 2017-08-29 | 江苏凌特精密机械有限公司 | A kind of ultra-thin water pump pump case |
| CN107282858A (en) * | 2017-06-14 | 2017-10-24 | 安徽华昊机械制造有限公司 | A kind of pump housing sand casting casting model powder |
| CN107398527A (en) * | 2017-06-14 | 2017-11-28 | 安徽华昊机械制造有限公司 | A kind of pump housing molding sand casting technique with fireproof coating |
| CN107234213A (en) * | 2017-07-25 | 2017-10-10 | 苏州市鑫渭阀门有限公司 | The ceramic precision casting method of the high pressure stainless steel pump housing |
| CN108687305A (en) * | 2018-06-14 | 2018-10-23 | 湖南精量重工科技有限公司 | A kind of casting method of pump body |
| CN109943768A (en) * | 2019-05-09 | 2019-06-28 | 南京正领汽车部件有限公司 | Lightweight automobile clamp production technology |
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Application publication date: 20160504 |