GB212515A - Improvements in permanent metal moulds - Google Patents

Improvements in permanent metal moulds

Info

Publication number
GB212515A
GB212515A GB24270/23A GB2427023A GB212515A GB 212515 A GB212515 A GB 212515A GB 24270/23 A GB24270/23 A GB 24270/23A GB 2427023 A GB2427023 A GB 2427023A GB 212515 A GB212515 A GB 212515A
Authority
GB
United Kingdom
Prior art keywords
casting
carbon
layer
metals
class
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
GB24270/23A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB212515A publication Critical patent/GB212515A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Laminated Bodies (AREA)

Abstract

212,515. Holley, E., (Assignee of Meloche, D. H.). March 5, 1923, [Convention date]. Drawings to Specification. Cementation.-Metal moulds are coated with a refractory insulating material preferably of a permanent nature as described in Specification 202,2,73, [Class 83 (i), Casting &c. metals], and then with a thick layer of amorphous carbon freshly applied before each pour in order to produce soft castings. The refractory coating may comprise fireclay <1>/64 of an inch thick and the carbon layer lamp black from an acetylene flame of such thickness that it is intact after the casting has been removed. The thickness of the carbon layer should be sufficient to ensure slow cooling about 30 seconds for an irregular casting of 2 lbs. weight. Surplus carbon and dirt is removed by air blast before applying the fresh layer as described in Specification 199,390, [Class 83 (i), Casting &c. metals]. This also helps to keep the temperature of the refractory coating below 1150‹ F., but it should not be allowed to fall below 560‹ F. Specification 201,913 also is referred to.
GB24270/23A 1923-03-05 1923-09-29 Improvements in permanent metal moulds Expired GB212515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US212515XA 1923-03-05 1923-03-05

Publications (1)

Publication Number Publication Date
GB212515A true GB212515A (en) 1924-12-24

Family

ID=21803188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24270/23A Expired GB212515A (en) 1923-03-05 1923-09-29 Improvements in permanent metal moulds

Country Status (1)

Country Link
GB (1) GB212515A (en)

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