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US2441695A - Casting mold - Google Patents

Casting mold Download PDF

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Publication number
US2441695A
US2441695A US538166A US53816644A US2441695A US 2441695 A US2441695 A US 2441695A US 538166 A US538166 A US 538166A US 53816644 A US53816644 A US 53816644A US 2441695 A US2441695 A US 2441695A
Authority
US
United States
Prior art keywords
coating
refractory
pattern
mold
casting
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 - Lifetime
Application number
US538166A
Other languages
English (en)
Inventor
Roy C Feagin
Eric H Zahn
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.)
AUSTENAL LAB Inc
AUSTENAL LABORATORIES Inc
Original Assignee
AUSTENAL LAB Inc
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
Priority to BE480657D priority Critical patent/BE480657A/xx
Priority to LU28936D priority patent/LU28936A1/xx
Application filed by AUSTENAL LAB Inc filed Critical AUSTENAL LAB Inc
Priority to US538166A priority patent/US2441695A/en
Priority to GB15995/45A priority patent/GB601260A/en
Application granted granted Critical
Publication of US2441695A publication Critical patent/US2441695A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22C9/04—Use of lost patterns
    • 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
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding
    • B22C23/02—Devices for coating moulds or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S15/00—Brushing, scrubbing, and general cleaning
    • Y10S15/09—Dust mop cleaners

Definitions

  • Another object of the invention is to provide improvements of the character set forth which will render possible precision casting of articles which have extreme hardness and are difficult to finish, whereby such articles are cast consistently with a high degree of surface smoothness and detail, and require little, if any, finishing of the articles after the casting operation.
  • Another object of the invention is to provide an improved method of applying the coating material to the low fusing destructible pattern from which the coating and bonding or anchoring material are transferred to the mold body.
  • Another object of the invention is to provide an improved refractory mold having its casting surface coated with the improved coatingmaterial and having the coating bonded to the mold body in accordance with the present invention.
  • Figure 1 is a schematic view showing in simplied form a pattern of an article to be cast
  • Figure 2 is a view similar to Figure 1; showing the pattern provided with a sprue element, and also showing applied to the pattern the coating for forming the smooth casting surface on the mold body;
  • Figure 3 is a view similarto Figure 2; showing applied to the coated pattern the material for bonding or anchoring the coating to the mold body:
  • Figure 5 is a fragmentary microscopic section taken on the line 5-5 of Figure 3;
  • Figure 9 is a fragmentary microscopic section taken on the line 8-9 of Figure 8.
  • the pattern I0 is preferably formed of low fusing material, such as wax, or of any of the other destructlble materials well known in the art.
  • the pattern may be cast under force or pressure in known manner so as to reproduce accurately the desired article as to dimensions y and configuration, and as to all fine detail.
  • the primary coating consists of a roughened exterior surface brought about by the bonding and drying of the coarse refractory particles on its surface. This roughened surface interlocks with the secondary investment composition forming the body of the mold, effectively to bond or anchor the coating in place. Moreover, the sanding operation assists in fixing the coating I5 in place by preventing a drainage or flowing thereof along the surface of the pattern, formexample from the high points of the pattern.
  • the refractory mold may be formed about the pattern in any known or suitable manner. This procedure therefore will not be described in detail except to state that the secondary investment material for forming the body of the mold is indicated at in Figure 6, whereas the completed refractory mold is indicated at 26 in Figure 8.
  • the plate I1 is shown as having a coating of wax or other suitable material at I8 to which the basin forming element I4 is waxed or otherwise suitably secured at 20.
  • preferably of heat resistant alloy, is shown as having an asbestos liner 22 and an inner paper liner 23, and as waxed to coating I8 at 24.
  • any 'suitable binder may be employed in the secondary investment material 25, we preferably use an investment having a tetra-ethyl silicate binder, or the investment material disclosed and claimed in the copending application of Paul F. Collins, Serial No. 450,619, filed July 11, 1942, now Patent 2,380,945, issued August '7. 1945. Any of the other binders known in the art, or suitable for refractory mold materials, may, of course, be employed.
  • the binder for the primary coating material is preferably the same, or selected to match the binder for the secondary investment material, although, this may vary within the scope of the present invention.
  • the refractory mold 26 When the refractory mold 26 has solidified or set suciently, it is subjected to heat at a temperature about or slightly abpgathafuslng 13913113. 1J/,
  • metal having the desired properties for the finished casting is poured or otherwise introduced into the mold cavity 21.
  • the resulting casting which may have extreme hardness and be diicult to machine, has a high degree of surface smoothness and detail, and requires little, if any, finishing of the article after the casting operation.
  • the refractory mold 26 may be broken to permit removal of the casting.
  • a refractory mold comprising a body of comminuted refractory material having a casting surface covered with a coating comprising a comminuted refractory material of relatively fine 7.
  • a coating comprising a comminuted refractory material of relatively fine 7.
  • Sil-A refractory mold comprising a body of comminuted refractory material having a casting-surfacecovered with a coatingrcomprising a comminuted refractory material of relatively fine particlesize; abinding agent and a-filmforming constituent,- and a layer of comminuted refractory materialof particle size coarser than the-particle vsize of therefractory material of saidcoatingand finer than the particle size of the refractory material ofthe mold body, said lastmentioned layer of refractory material beingsubstantiaily coextensive with said coating aadinterposed between the coating and the mold body to -bond vand anchor the coating to the mold body.
  • a refractory moldy comprising a body of comminuted refractory material having a'casting'surfacecovered with a coating comprising a comminuted refractory'm-aterial of relatively fine particle size, a binding agent and a water-soluble alginate acting asa nlm-forming constituent, and -avlayer of comminuted refractory material'of particle size coarser than the particle sizeof the refractory material of said'coating and finer than the particle size of the refractory material of the mold body, said last mentioned layer ofrefractory material being substantially coextensive with said coating-and interposed between the coating and the mold body to bond and anchor the coating tothe mold body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
US538166A 1944-05-31 1944-05-31 Casting mold Expired - Lifetime US2441695A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE480657D BE480657A (es) 1944-05-31
LU28936D LU28936A1 (es) 1944-05-31
US538166A US2441695A (en) 1944-05-31 1944-05-31 Casting mold
GB15995/45A GB601260A (en) 1944-05-31 1945-06-22 Improvements in and relating to moulds for casting metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US538166A US2441695A (en) 1944-05-31 1944-05-31 Casting mold

Publications (1)

Publication Number Publication Date
US2441695A true US2441695A (en) 1948-05-18

Family

ID=24145789

Family Applications (1)

Application Number Title Priority Date Filing Date
US538166A Expired - Lifetime US2441695A (en) 1944-05-31 1944-05-31 Casting mold

Country Status (4)

Country Link
US (1) US2441695A (es)
BE (1) BE480657A (es)
GB (1) GB601260A (es)
LU (1) LU28936A1 (es)

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521839A (en) * 1949-08-11 1950-09-12 Austenal Lab Inc Refractory casting mold and method of making same
US2535662A (en) * 1948-03-10 1950-12-26 Gen Electric Mold for casting metals
US2568364A (en) * 1947-12-11 1951-09-18 Rolls Royce Process of making investment mold
US2623809A (en) * 1949-05-02 1952-12-30 Perfect Circle Corp Centrifugal casting coating composition for centrifugal molds and method of coating molds
US2682692A (en) * 1950-10-25 1954-07-06 Everard F Kohl Process of preparing precision castings
US2683296A (en) * 1951-11-17 1954-07-13 Monsanto Chemicals Method of preparing shell molds and composition therefor
US2732600A (en) * 1956-01-31 Sand cores having high-temperature strength
US2752257A (en) * 1952-11-15 1956-06-26 Gen Motors Corp Investment molding
US2756475A (en) * 1953-02-24 1956-07-31 Gen Motors Corp Investment mold and core assembly
US2772458A (en) * 1951-05-29 1956-12-04 Gen Motors Corp Method of making smooth-surfaced sand-resin molds
US2790218A (en) * 1954-06-29 1957-04-30 Mercast Corp Shell mold structures and processes and compositions for forming the same
US2806269A (en) * 1952-09-11 1957-09-17 Rolls Royce Moulds for precision casting
US2806270A (en) * 1953-07-17 1957-09-17 Rolls Royce Method of making moulds for precision casting
US2809898A (en) * 1954-02-16 1957-10-15 Gen Electric Porous ceramic mold and method of making same
US2811760A (en) * 1953-04-01 1957-11-05 Shaw Process Dev Corp Method for the production of casting moulds
US2815552A (en) * 1951-11-15 1957-12-10 Vickers Electrical Co Ltd Method of making a mold by the lost-wax process
DE967780C (de) * 1950-06-12 1957-12-12 Boehler & Co Ag Geb Verfahren zur Herstellung von Formen fuer das Praezisionsgiessverfahren
US2818619A (en) * 1957-01-31 1958-01-07 Gen Motors Corp Refractory mold, method of making same and composition therefor
US2820266A (en) * 1955-03-11 1958-01-21 Everard F Kohl Shell mold structure
US2820265A (en) * 1952-08-14 1958-01-21 Mercast Corp Shell mold structures
US2836867A (en) * 1950-12-04 1958-06-03 Morris Bean & Company Process of making mold
US2837798A (en) * 1952-06-16 1958-06-10 Ford Motor Co Method of shell molding
US2842444A (en) * 1953-08-18 1958-07-08 Rolls Royce Method of forming moulds for precision casting
US2841844A (en) * 1952-05-31 1958-07-08 Ford Motor Co Method of shell molding
US2851752A (en) * 1957-04-08 1958-09-16 Gen Motors Corp High strength investment casting mold
US2875485A (en) * 1953-12-17 1959-03-03 Sulzer Ag Precision casting mold and method of making the same
US2888354A (en) * 1954-09-23 1959-05-26 Vickers Electrical Co Ltd Compositions suitable for making refractory articles
DE972252C (de) * 1949-04-25 1959-06-11 Boehler & Co Ag Geb Verfahren zum Herstellen von zwei- oder mehrschichtigen Formen zum Praezisionsgiessen
US2892227A (en) * 1956-01-11 1959-06-30 Derald H Ruttenberg Metal casting process and elements and compositions employed in same
US2912729A (en) * 1956-07-24 1959-11-17 John M Webb Refractory molds
US2914823A (en) * 1950-12-04 1959-12-01 Morris Bean & Company Casting mold and pattern and process
US2923990A (en) * 1960-02-09 Casting mold for fusible pattern
US2932864A (en) * 1958-06-17 1960-04-19 Mellen Method of making and drying shell-type refractory molds
DE1080738B (de) * 1952-03-04 1960-04-28 Boehler & Co Ag Geb Mehrschichtig aufgebaute Form fuer das Praezisions- oder Feingiessverfahren
US2936490A (en) * 1956-07-12 1960-05-17 Harold J Mason Process of bonding cast metal and plastic
US2964810A (en) * 1957-05-18 1960-12-20 Philips Corp Method of drying wax models
US2964800A (en) * 1955-08-24 1960-12-20 Dorsett Roscoe Manufacture of a wall
US3005244A (en) * 1958-06-09 1961-10-24 Howe Sound Co Production of shell molds
US3022555A (en) * 1962-02-27 Molds
US3048905A (en) * 1959-06-11 1962-08-14 Howe Sound Co Making refractory shell molds
US3077648A (en) * 1960-02-01 1963-02-19 Union Carbide Corp Multi-layer shell mold
US3171174A (en) * 1963-06-06 1965-03-02 Jr Edward J Mellen Frozen-mercury process for making shell molds
DE1198474B (de) * 1959-09-18 1965-08-12 British Steel Castings Res Ass Oberflaechenbehandlungsmittel fuer Sandformen und -kerne fuer Giessereizwecke
US3420644A (en) * 1964-10-19 1969-01-07 Howmet Corp Method for molding of glass and ceramic materials
US3426834A (en) * 1967-03-16 1969-02-11 Obermayer Co The S Expendable pattern for precision investment casting
DE1558114B1 (de) * 1966-01-27 1970-10-15 Foseco Trading Ag Selbsthaertende Mischung aus teilchenfoermigem Material und waessrigem Alkalisilicat
US3755915A (en) * 1971-12-10 1973-09-04 Nalco Chemical Co Investment casting shell mold drying and desiccant reactivation apparatus
US3774453A (en) * 1972-07-24 1973-11-27 R Falk Molten metal sampler
US4834929A (en) * 1987-03-03 1989-05-30 3D Manufacturing, Inc. Method of making molds
US4995443A (en) * 1989-02-08 1991-02-26 The Board Of Trustees Of Western Michigan University Process for evaporative pattern casting
CN104084528A (zh) * 2014-06-16 2014-10-08 芜湖市鸿坤汽车零部件有限公司 一种易剥离醇基铸造涂料及其制作方法
CN104117626A (zh) * 2014-06-26 2014-10-29 芜湖市鸿坤汽车零部件有限公司 一种锆英粉醇基铸造涂料及其制作方法
CN104399873A (zh) * 2014-11-08 2015-03-11 芜湖市鸿坤汽车零部件有限公司 一种添加改性斑茅根粉的醇基铸造涂料及其制作方法
CN105215266A (zh) * 2015-09-21 2016-01-06 蚌埠冠宜型材科技有限公司 一种高稳定性的铸造木模制作方法
CN114799088A (zh) * 2022-05-11 2022-07-29 李石泉 一种大工件的消失模铸造装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE511806A (es) * 1951-08-29
DE1035860B (de) * 1951-08-30 1958-08-07 Renault Verfahren zur Herstellung eines Formueberzuges fuer den Praezisionsguss mittels ausschmelzbarer Modelle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956278A (en) * 1930-08-20 1934-04-24 Austenal Lab Inc Method of lining molds
US2027932A (en) * 1934-01-20 1936-01-14 Carbide & Carbon Chem Corp Mold and method for its production
US2085709A (en) * 1931-07-25 1937-06-29 Ig Farbenindustrie Ag Composition for combating foam
US2169385A (en) * 1938-11-05 1939-08-15 Birdsboro Steel Foundry & Mach Manufacture of foundry molds
US2333679A (en) * 1942-06-30 1943-11-09 Irl C Schoonover Process for protecting plastics during curing or molding
US2351309A (en) * 1943-02-24 1944-06-13 Borden Co Bottle label adhesive
US2388299A (en) * 1943-09-27 1945-11-06 Gen Electric Method of fabricating molds
US2788736A (en) * 1956-01-19 1957-04-16 Bardini Gino Fruit peel press

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956278A (en) * 1930-08-20 1934-04-24 Austenal Lab Inc Method of lining molds
US2085709A (en) * 1931-07-25 1937-06-29 Ig Farbenindustrie Ag Composition for combating foam
US2027932A (en) * 1934-01-20 1936-01-14 Carbide & Carbon Chem Corp Mold and method for its production
US2169385A (en) * 1938-11-05 1939-08-15 Birdsboro Steel Foundry & Mach Manufacture of foundry molds
US2333679A (en) * 1942-06-30 1943-11-09 Irl C Schoonover Process for protecting plastics during curing or molding
US2351309A (en) * 1943-02-24 1944-06-13 Borden Co Bottle label adhesive
US2388299A (en) * 1943-09-27 1945-11-06 Gen Electric Method of fabricating molds
US2788736A (en) * 1956-01-19 1957-04-16 Bardini Gino Fruit peel press

Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732600A (en) * 1956-01-31 Sand cores having high-temperature strength
US3022555A (en) * 1962-02-27 Molds
US2923990A (en) * 1960-02-09 Casting mold for fusible pattern
US2568364A (en) * 1947-12-11 1951-09-18 Rolls Royce Process of making investment mold
US2535662A (en) * 1948-03-10 1950-12-26 Gen Electric Mold for casting metals
DE972252C (de) * 1949-04-25 1959-06-11 Boehler & Co Ag Geb Verfahren zum Herstellen von zwei- oder mehrschichtigen Formen zum Praezisionsgiessen
US2623809A (en) * 1949-05-02 1952-12-30 Perfect Circle Corp Centrifugal casting coating composition for centrifugal molds and method of coating molds
US2521839A (en) * 1949-08-11 1950-09-12 Austenal Lab Inc Refractory casting mold and method of making same
DE967780C (de) * 1950-06-12 1957-12-12 Boehler & Co Ag Geb Verfahren zur Herstellung von Formen fuer das Praezisionsgiessverfahren
US2682692A (en) * 1950-10-25 1954-07-06 Everard F Kohl Process of preparing precision castings
US2836867A (en) * 1950-12-04 1958-06-03 Morris Bean & Company Process of making mold
US2914823A (en) * 1950-12-04 1959-12-01 Morris Bean & Company Casting mold and pattern and process
US2772458A (en) * 1951-05-29 1956-12-04 Gen Motors Corp Method of making smooth-surfaced sand-resin molds
US2815552A (en) * 1951-11-15 1957-12-10 Vickers Electrical Co Ltd Method of making a mold by the lost-wax process
US2683296A (en) * 1951-11-17 1954-07-13 Monsanto Chemicals Method of preparing shell molds and composition therefor
DE1080738B (de) * 1952-03-04 1960-04-28 Boehler & Co Ag Geb Mehrschichtig aufgebaute Form fuer das Praezisions- oder Feingiessverfahren
US2841844A (en) * 1952-05-31 1958-07-08 Ford Motor Co Method of shell molding
US2837798A (en) * 1952-06-16 1958-06-10 Ford Motor Co Method of shell molding
US2820265A (en) * 1952-08-14 1958-01-21 Mercast Corp Shell mold structures
US2806269A (en) * 1952-09-11 1957-09-17 Rolls Royce Moulds for precision casting
US2752257A (en) * 1952-11-15 1956-06-26 Gen Motors Corp Investment molding
US2756475A (en) * 1953-02-24 1956-07-31 Gen Motors Corp Investment mold and core assembly
US2811760A (en) * 1953-04-01 1957-11-05 Shaw Process Dev Corp Method for the production of casting moulds
US2806270A (en) * 1953-07-17 1957-09-17 Rolls Royce Method of making moulds for precision casting
US2842444A (en) * 1953-08-18 1958-07-08 Rolls Royce Method of forming moulds for precision casting
US2875485A (en) * 1953-12-17 1959-03-03 Sulzer Ag Precision casting mold and method of making the same
US2809898A (en) * 1954-02-16 1957-10-15 Gen Electric Porous ceramic mold and method of making same
US2790218A (en) * 1954-06-29 1957-04-30 Mercast Corp Shell mold structures and processes and compositions for forming the same
US2888354A (en) * 1954-09-23 1959-05-26 Vickers Electrical Co Ltd Compositions suitable for making refractory articles
US2820266A (en) * 1955-03-11 1958-01-21 Everard F Kohl Shell mold structure
US2964800A (en) * 1955-08-24 1960-12-20 Dorsett Roscoe Manufacture of a wall
US2892227A (en) * 1956-01-11 1959-06-30 Derald H Ruttenberg Metal casting process and elements and compositions employed in same
US2936490A (en) * 1956-07-12 1960-05-17 Harold J Mason Process of bonding cast metal and plastic
US2912729A (en) * 1956-07-24 1959-11-17 John M Webb Refractory molds
US2818619A (en) * 1957-01-31 1958-01-07 Gen Motors Corp Refractory mold, method of making same and composition therefor
US2851752A (en) * 1957-04-08 1958-09-16 Gen Motors Corp High strength investment casting mold
US2964810A (en) * 1957-05-18 1960-12-20 Philips Corp Method of drying wax models
US3005244A (en) * 1958-06-09 1961-10-24 Howe Sound Co Production of shell molds
US2932864A (en) * 1958-06-17 1960-04-19 Mellen Method of making and drying shell-type refractory molds
US3048905A (en) * 1959-06-11 1962-08-14 Howe Sound Co Making refractory shell molds
DE1198474B (de) * 1959-09-18 1965-08-12 British Steel Castings Res Ass Oberflaechenbehandlungsmittel fuer Sandformen und -kerne fuer Giessereizwecke
US3077648A (en) * 1960-02-01 1963-02-19 Union Carbide Corp Multi-layer shell mold
US3171174A (en) * 1963-06-06 1965-03-02 Jr Edward J Mellen Frozen-mercury process for making shell molds
US3420644A (en) * 1964-10-19 1969-01-07 Howmet Corp Method for molding of glass and ceramic materials
DE1558114B1 (de) * 1966-01-27 1970-10-15 Foseco Trading Ag Selbsthaertende Mischung aus teilchenfoermigem Material und waessrigem Alkalisilicat
US3426834A (en) * 1967-03-16 1969-02-11 Obermayer Co The S Expendable pattern for precision investment casting
US3755915A (en) * 1971-12-10 1973-09-04 Nalco Chemical Co Investment casting shell mold drying and desiccant reactivation apparatus
US3774453A (en) * 1972-07-24 1973-11-27 R Falk Molten metal sampler
US4834929A (en) * 1987-03-03 1989-05-30 3D Manufacturing, Inc. Method of making molds
US4995443A (en) * 1989-02-08 1991-02-26 The Board Of Trustees Of Western Michigan University Process for evaporative pattern casting
CN104084528A (zh) * 2014-06-16 2014-10-08 芜湖市鸿坤汽车零部件有限公司 一种易剥离醇基铸造涂料及其制作方法
CN104084528B (zh) * 2014-06-16 2016-08-24 芜湖市鸿坤汽车零部件有限公司 一种易剥离醇基铸造涂料及其制作方法
CN104117626A (zh) * 2014-06-26 2014-10-29 芜湖市鸿坤汽车零部件有限公司 一种锆英粉醇基铸造涂料及其制作方法
CN104117626B (zh) * 2014-06-26 2016-08-17 芜湖市鸿坤汽车零部件有限公司 一种锆英粉醇基铸造涂料及其制作方法
CN104399873A (zh) * 2014-11-08 2015-03-11 芜湖市鸿坤汽车零部件有限公司 一种添加改性斑茅根粉的醇基铸造涂料及其制作方法
CN105215266A (zh) * 2015-09-21 2016-01-06 蚌埠冠宜型材科技有限公司 一种高稳定性的铸造木模制作方法
CN114799088A (zh) * 2022-05-11 2022-07-29 李石泉 一种大工件的消失模铸造装置
CN114799088B (zh) * 2022-05-11 2023-11-21 临沂华龙铸业有限公司 一种大工件的消失模铸造装置

Also Published As

Publication number Publication date
GB601260A (en) 1948-05-03
LU28936A1 (es)
BE480657A (es)

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