GB1437905A - Method of cleaning graphite moulds - Google Patents

Method of cleaning graphite moulds

Info

Publication number
GB1437905A
GB1437905A GB1011674A GB1011674A GB1437905A GB 1437905 A GB1437905 A GB 1437905A GB 1011674 A GB1011674 A GB 1011674A GB 1011674 A GB1011674 A GB 1011674A GB 1437905 A GB1437905 A GB 1437905A
Authority
GB
United Kingdom
Prior art keywords
mould
spray gun
sprocket
sand
gun
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
Application number
GB1011674A
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.)
Amsted Industries Inc
Original Assignee
Amsted Industries 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
Application filed by Amsted Industries Inc filed Critical Amsted Industries Inc
Publication of GB1437905A publication Critical patent/GB1437905A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086Descaling; Removing coating films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00Abrasive blasting machines or devices; Plants
    • B24C3/32Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Nozzles (AREA)

Abstract

1437905 Blasting; cleaning moulds AMSTED INDUSTRIES Inc 6 March 1974 [4 June 1973] 10116/74 Headings B3D and B3F A method of removing a mould coating from the casting surface of a graphite mould (17, Fig. 1, not shown) comprises suspending a sand spray gun 58 on the axis of the mould and spaced from the mould, and then, while forcing sand through the spray gun and against the mould surface, moving the spray gun in a spiral path towards the periphery of the mould. In apparatus for carrying out the method, a succession of graphite moulds (17) are moved into position beneath the spray gun on a conveyer (16) the spray gun being mounted on a frame 10 having a hopper which feeds sand to the gun under the control of a valve 22. A sprocket 28 is mounted on blocks 26 carrying roller bearings 30, 32 engaging a stationary ring 38 mounted on the frame. A pair of spaced vertical plates 40 is mounted on the sprocket and receive between them a pair of guide wheels 88 carried by brackets 86 on a block 82 rotatably supported by bearings 80 on an outer pipe 62 of the spray gun. The spray gun is supported by a universal joint 48 on the frame and a sprocket 96 is fixed to the outer pipe 62 and connected by a chain 98 to a sprocket 94 on a gear reduction unit 90 mounted on the block 80. An output shaft 100 of the unit has a crank 102 at each end of which is a cam wheel 104, 105 arranged so that one wheel at a time engages a cam plate 106 secured to the plates 40. As the sprocket 28 is rotated, the plates 40, through the guide wheels 88, impart rotation to the block 80. As the sprocket 96 is held against rotation, the sprocket 94 rotates and the crank is moved to cause the cam wheel 105 to ride along the cam plate 106 thus swinging the spray gun 58 about the axis 56 of the universal joint, the gun thus moving in a spiral path. The effect of the cam wheel on the cam plate decreases the velocity of radial movement of the gun as it approaches the periphery of the mould so as to effect a constant blasting of the area of the mould. The sand is blasted from a compressed air source, the pressure of which is increased as the gun moves radially outward so as to compensate for the increased distance of the gun from the mould. The spray gun has a funnel 66 for receiving sand from the hopper, the sand falling through an inner pipe 60. Compressed air is supplied from an inlet 68 to the space between the inner and outer pipes, the lower ends of which receive an adaptor 71 having a tapered surface which causes the air at the outlet to create a negative pressure to modulate the velocity of the sand.
GB1011674A 1973-06-04 1974-03-06 Method of cleaning graphite moulds Expired GB1437905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00367355A US3854899A (en) 1973-06-04 1973-06-04 Automatic mold cleaning

Publications (1)

Publication Number Publication Date
GB1437905A true GB1437905A (en) 1976-06-03

Family

ID=23446831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1011674A Expired GB1437905A (en) 1973-06-04 1974-03-06 Method of cleaning graphite moulds

Country Status (7)

Country Link
US (1) US3854899A (en)
CA (1) CA995899A (en)
FR (1) FR2231476B1 (en)
GB (1) GB1437905A (en)
IN (1) IN140350B (en)
IT (1) IT1004135B (en)
ZA (1) ZA741448B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102319872A (en) * 2011-09-28 2012-01-18 成都三强轧辊股份有限公司 Molding and positioning method of funnel using centrifugal roller for core punching
CN103042471A (en) * 2012-12-21 2013-04-17 成都银河动力有限公司 Surface treatment method of piston inlaid ring
CN111871950A (en) * 2020-07-27 2020-11-03 安徽富乐德科技发展股份有限公司 Surface treatment device and process for graphite component of semiconductor ion implantation device
CN114083443A (en) * 2021-10-11 2022-02-25 凯瑞电子(诸城)有限公司 Electromagnetic relay shell is with rotatory sandblast formula burnishing device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972149A (en) * 1975-03-03 1976-08-03 Commercial Resins Company End blaster for pipes
US4659391A (en) * 1983-09-06 1987-04-21 B & U Corporation Method and apparatus for removing excess material from sand cores
FR2587960B2 (en) * 1985-05-29 1988-01-15 Equip Menager Ind & Com FOLDABLE DEVICE FOR THE TRANSPORT AND / OR HANDLING OF BULK OBJECTS OR ARTICLES
US5840260A (en) * 1996-10-31 1998-11-24 Shell Oil Company Catalyst removal system
CN104400662B (en) * 2014-11-28 2017-09-15 济南大学 A kind of high ferro train wheel shot peening strengthening device
FR3035607B1 (en) * 2015-04-30 2017-04-28 Saint-Gobain Centre De Rech Et D'Etudes Europeen METHOD FOR MODIFYING THE APPEARANCE OF A SURFACE
CN110252957B (en) * 2019-07-15 2020-04-03 福建金泰机械制造有限公司 Molding sand casting core-making molding system
CN112008613B (en) * 2020-08-27 2021-12-03 玉环县正大机械有限公司 Sand blasting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479299A (en) * 1946-10-31 1949-08-16 Goodrich Co B F Mold cleaning apparatus
US2951319A (en) * 1957-07-01 1960-09-06 Floyd I Kornhaus Device for sand-blasting bores
US3103765A (en) * 1959-09-25 1963-09-17 Owens Illinois Glass Co Slurry-blasting apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102319872A (en) * 2011-09-28 2012-01-18 成都三强轧辊股份有限公司 Molding and positioning method of funnel using centrifugal roller for core punching
CN103042471A (en) * 2012-12-21 2013-04-17 成都银河动力有限公司 Surface treatment method of piston inlaid ring
CN111871950A (en) * 2020-07-27 2020-11-03 安徽富乐德科技发展股份有限公司 Surface treatment device and process for graphite component of semiconductor ion implantation device
CN114083443A (en) * 2021-10-11 2022-02-25 凯瑞电子(诸城)有限公司 Electromagnetic relay shell is with rotatory sandblast formula burnishing device

Also Published As

Publication number Publication date
ZA741448B (en) 1975-02-26
IN140350B (en) 1976-10-23
AU6877674A (en) 1975-11-13
FR2231476B1 (en) 1976-12-24
US3854899A (en) 1974-12-17
CA995899A (en) 1976-08-31
DE2425073B2 (en) 1976-11-04
IT1004135B (en) 1976-07-10
DE2425073A1 (en) 1975-04-30
FR2231476A1 (en) 1974-12-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940305