CN103084540B - A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel - Google Patents

A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel Download PDF

Info

Publication number
CN103084540B
CN103084540B CN201310034751.0A CN201310034751A CN103084540B CN 103084540 B CN103084540 B CN 103084540B CN 201310034751 A CN201310034751 A CN 201310034751A CN 103084540 B CN103084540 B CN 103084540B
Authority
CN
China
Prior art keywords
order
powder
refractory
coating
steel
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.)
Expired - Fee Related
Application number
CN201310034751.0A
Other languages
Chinese (zh)
Other versions
CN103084540A (en
Inventor
周斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHAOHU LETTER BUILDING MATERIALS MACHINERY AND EQUIPMENT Ltd Co
Original Assignee
CHAOHU LETTER BUILDING MATERIALS MACHINERY AND EQUIPMENT Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHAOHU LETTER BUILDING MATERIALS MACHINERY AND EQUIPMENT Ltd Co filed Critical CHAOHU LETTER BUILDING MATERIALS MACHINERY AND EQUIPMENT Ltd Co
Priority to CN201310034751.0A priority Critical patent/CN103084540B/en
Publication of CN103084540A publication Critical patent/CN103084540A/en
Application granted granted Critical
Publication of CN103084540B publication Critical patent/CN103084540B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel, by refractory material, suspending agent, other auxiliary agent and water composition, the percentage by weight proportioning of described coating is refractory material 60 ~ 70%, suspending agent 3 ~ 8%, other auxiliary agent 2 ~ 5%, all the other components are water, described refractory material is bauxite, great English powder, magnesium powder, silica flour, brown alundum powder and white alundum powder composition, granularity and mass percent proportioning are-270 order ~+320 orders 78%,-200 order ~+270 orders 15%,-100 order ~+200 orders 5%, + 100 order≤2%,-100 order ~+200 order 5% and+100 order≤2%, described suspending agent is the mass ratio of sodium bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:1, other auxiliary agent described is benzene emulsion or sulfate.Use the method to simplify production craft step relative to other coating, effectively improve the intensity of coating, the dope layer decreased due to bubbles model easily comes off and forms pigment finish leather in molten steel pouring course, causes the defect such as foundry goods bark pocket, slag inclusion, scab.

Description

A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel
Technical field
The present invention relates to lost foam casting process, belong to casting technique field, particularly relate to a kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel.
Background technology
People are usually referred to as lost foam casting and are also called dry sand vacuum full mould casting, be referred to as EPC abroad, it is current one of state-of-the-art casting technique in the world, vibration molding in drystone sand is directly embedded in paraffin or polyethylene foamed (being usually benzene plate) analogue formation, form benzene plate entity sand mold type molds, when in this solid mold during pouring molten iron, polystyrene burns gasifies, molten iron is full of the space occupied by polystyrene, forms the foundry goods identical with model after solidifying cooling.
But its weak point is: first, the free carbon richness produced after polystyrene burns is amassed and form carbon distribution on cast-internal or cast(ing) surface, causes finished surface to scrap because of carbon distribution defect; Secondly, form pigment finish leather because benzene template dope layer easily comes off in molten steel pouring course, cause foundry goods bark pocket, slag inclusion, scab etc. to be difficult to the casting flaw overcome; In addition, easily produce iron burnt-in sand, rise the defect such as case, distortion, and surface quality of continuous castings is poor relative to die model casting.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of scrappage that both can reduce cast member, cast member after simultaneously also can reducing sintering is peeled off gradually, more cost-saving, improve the lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel of production efficiency.
For achieving the above object, the technology used in the present invention solution is: a kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel, is made up of refractory material, suspending agent, other auxiliary agent and water;
Further instruction, the percentage by weight proportioning of described coating is: refractory material 60 ~ 70%, suspending agent 3 ~ 8%, other auxiliary agent 2 ~ 5%, and all the other components are water;
Described refractory material is: bauxite, great English powder, magnesium powder, silica flour, brown alundum powder and white alundum powder composition, granularity and mass percent proportioning are: bauxite-270 order ~+320 order 78%, great English powder-200 order ~+270 order 15%, magnesium powder-100 order ~+200 order 5%, silica flour+100 order≤2%, brown alundum powder-100 order ~+200 order 5%, white alundum powder+100 order≤2%, wherein brown alundum powder with magnesium vanadine for raw material through 2000 DEG C ~ 2400 DEG C pyrolytic semltings obtain, white jade steel powder forms through electric smelting recrystallization with alumina powder, be applicable to heat resisting steel, the evaporative pattern of the high temperature cast such as steel alloy uses, the great English chalk line coefficient of expansion is little, heat is shaken good stability, refractoriness is high and when high temperature to most of alloy not chemically reactive, the granularity of all the components and distribution of particle sizes are the key factors affecting coating density and gas permeability, particularly lost foam paint, material impact can have been discharged smoothly by coating to the thermal decomposition product of foamed coating model in sintering process,
Described suspending agent is: the mass ratio of sodium bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:1;
Other auxiliary agent described is: benzene emulsion or sulfate;
The density of described coating is 1.5 ~ 2.2g/cm3, gas forming amount≤15ml/g, and within 24 hours, suspension is 99%.
Use principle of the present invention is: steeped after being stirred by coating and be coated on bubbles model, and coat is 3 ~ 5 layers, specifically depending on foundry goods size, finally neat for the bubbles model coated putting is dried on the top of the shelf, and bake out temperature is 50 ~ 65 DEG C.
The present invention has following beneficial effect in sum: the present invention simplifies production craft step relative to other coating, the intensity of effective raising coating, the dope layer decreased due to bubbles model easily comes off and forms pigment finish leather in molten steel pouring course, causes the defect such as foundry goods bark pocket, slag inclusion, scab.
Detailed description of the invention
For a lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel, be made up of refractory material, suspending agent, other auxiliary agent and water;
Further instruction, the percentage by weight proportioning of described coating is: refractory material 60 ~ 70%, suspending agent 3 ~ 8%, other auxiliary agent 2 ~ 5%, and all the other components are water;
Described refractory material is: bauxite, great English powder, magnesium powder, silica flour, brown alundum powder and white alundum powder composition, granularity and mass percent proportioning are: bauxite-270 order ~+320 order 78%, great English powder-200 order ~+270 order 15%, magnesium powder-100 order ~+200 order 5%, silica flour+100 order≤2%, brown alundum powder-100 order ~+200 order 5%, white alundum powder+100 order≤2%, wherein brown alundum powder with magnesium vanadine for raw material through 2000 DEG C ~ 2400 DEG C pyrolytic semltings obtain, white jade steel powder forms through electric smelting recrystallization with alumina powder, be applicable to heat resisting steel, the evaporative pattern of the high temperature cast such as steel alloy uses, the great English chalk line coefficient of expansion is little, heat is shaken good stability, refractoriness is high and when high temperature to most of alloy not chemically reactive, the granularity of all the components and distribution of particle sizes are the key factors affecting coating density and gas permeability, particularly lost foam paint, material impact can have been discharged smoothly by coating to the thermal decomposition product of foamed coating model in sintering process,
Described suspending agent is: the mass ratio of sodium bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:1;
Other auxiliary agent described is: benzene emulsion or sulfate;
The density of described coating is 1.5 ~ 2.2g/cm3, gas forming amount≤15ml/g, and within 24 hours, suspension is 99%.
Use principle of the present invention is: steeped after being stirred by coating and be coated on bubbles model, and coat is 3 ~ 5 layers, specifically depending on foundry goods size, finally neat for the bubbles model coated putting is dried on the top of the shelf, and bake out temperature is 50 ~ 65 DEG C.
Last it is noted that above embodiment only in order to illustrate the present invention and and unrestricted technical scheme described in the invention; Therefore, although this description with reference to each above-mentioned embodiment to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent to replace; And all do not depart from technical scheme and the improvement thereof of invention spirit and scope, it all should be encompassed in the middle of right of the present invention.

Claims (3)

1. the lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel, by refractory material, suspending agent, other auxiliary agent and water composition, it is characterized in that being: the percentage by weight proportioning of described coating is refractory material 60 ~ 70%, suspending agent 3 ~ 8%, other auxiliary agent 2 ~ 5%, all the other components are water, described refractory material is bauxite, great English powder, magnesium powder, silica flour, brown alundum powder and white alundum powder composition, granularity and mass percent proportioning are bauxite-270 order ~+320 order 78%, great English powder-200 order ~+270 order 15%, magnesium powder-100 order ~+200 order 5%, silica flour+100 order≤2%, brown alundum powder-100 order ~+200 order 5%, white alundum powder+100 order≤2%, described suspending agent is the mass ratio of sodium bentonite in powder and the sodium cellulose glycolate aqueous solution is 1:1, other auxiliary agent described is benzene emulsion or sulfate.
2. a kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel according to claim 1, it is characterized in that being: the density of described coating is 1.5 ~ 2.2g/cm3, gas forming amount≤15ml/g, within 24 hours, suspension is 99%.
3. a kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel according to claim 1, it is characterized in that being: described paint layer is 3 ~ 5 layers, the bake out temperature of the bubbles model coated is 50-65 DEG C.
CN201310034751.0A 2013-01-30 2013-01-30 A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel Expired - Fee Related CN103084540B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310034751.0A CN103084540B (en) 2013-01-30 2013-01-30 A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310034751.0A CN103084540B (en) 2013-01-30 2013-01-30 A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel

Publications (2)

Publication Number Publication Date
CN103084540A CN103084540A (en) 2013-05-08
CN103084540B true CN103084540B (en) 2015-12-23

Family

ID=48197954

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310034751.0A Expired - Fee Related CN103084540B (en) 2013-01-30 2013-01-30 A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel

Country Status (1)

Country Link
CN (1) CN103084540B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286258B (en) * 2013-06-24 2015-08-19 朱兰英 A kind of low cost, high-performance lost foam casting coating
KR101929134B1 (en) * 2014-08-18 2018-12-13 가부시키가이샤 고베 세이코쇼 Lost-foam casting method
CN105268911B (en) * 2015-10-27 2017-12-19 宁夏共享化工有限公司 A kind of highly-breathable lost foam paint and preparation method thereof
CN105964899A (en) * 2016-07-20 2016-09-28 张耀忠 Water-based casting coating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69911928T2 (en) * 1999-06-14 2004-07-22 General Motors Corp., Detroit Removal of residues of the lost casting model from a casting
JP3871952B2 (en) * 2002-04-08 2007-01-24 花王株式会社 Vanishing model casting method
CN101497105B (en) * 2009-03-12 2011-08-10 深圳市景鼎现代科技有限公司 Cast form water borne coating and technique for preparing the same
CN102407275B (en) * 2011-04-25 2013-04-10 湖北工业大学 Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof

Also Published As

Publication number Publication date
CN103084540A (en) 2013-05-08

Similar Documents

Publication Publication Date Title
CN102407275B (en) Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof
CN103506566B (en) For the coating and preparation method thereof of lost foam casting
CN103084540B (en) A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel
CN103521697B (en) A kind of graphite cast paint
CN103084542B (en) A kind of by lost foam casting heat resisting steel or wear-resisting alloy steel technique
WO2017114081A1 (en) Lost foam casting method for diesel engine shell
CN101554644B (en) Lost foam casting process suitable for aluminum alloy materials
CN105522112A (en) High-collapsibility ceramic shell for manufacturing magnesium alloy fusible pattern and preparation method for high-collapsibility ceramic shell
CN102248120B (en) Low thermoconductive paint for casting lost foam of thin wall cast
CN101524739A (en) Precision-investment casting method
CN102873267B (en) Alcohol-based paint for sand casting and preparation method thereof
CN102672104A (en) Precision casting method for pouring evanescent mold through high-performance coating foam and mold laminating paraffin
CN108057840B (en) A kind of formula of the water base lost foam paint of low-temperature high-strength magnesium iron
CN102836952A (en) Resin sand type casting coating and preparation method thereof
CN103042173A (en) Negative-pressure airflow expendable pattern based energy-saving and effect-enhancing casting process
CN105312485A (en) Molding sand for die casting
CN104014717B (en) A kind of casting method of ZL101 thin-walled aluminum alloys component
CN103008548A (en) Lost foam casting method
CN107042284A (en) A kind of device for sand coated iron mould method for producing steel-casting
CN105537526A (en) Forming method of flame-retarding insulating riser
CN104209455B (en) A kind of refractory aggregate and consisting of stainless steel cast paint and preparation method thereof
CN102407281B (en) Lost foam casting paint
CN105734363A (en) Forming method of aluminum magnesium alloy component
CN103658510B (en) A kind of cavityless casting water based paint
CN101024239A (en) Technology for making magnesium-alloy fired mold casting type sheel

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151223

Termination date: 20190130

CF01 Termination of patent right due to non-payment of annual fee