GB1474308A - Determining crackability of metals - Google Patents

Determining crackability of metals

Info

Publication number
GB1474308A
GB1474308A GB4556175A GB4556175A GB1474308A GB 1474308 A GB1474308 A GB 1474308A GB 4556175 A GB4556175 A GB 4556175A GB 4556175 A GB4556175 A GB 4556175A GB 1474308 A GB1474308 A GB 1474308A
Authority
GB
United Kingdom
Prior art keywords
metal
molten metal
duct
enlarged
elongate portion
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
GB4556175A
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB1474308A publication Critical patent/GB1474308A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G01N1/1409—Suction devices, e.g. pumps; Ejector devices adapted for sampling molten metals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/08—Detecting presence of flaws or irregularities
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/204—Structure thereof, e.g. crystal structure
    • G01N33/2045—Defects

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1474308 Casting metals CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE 31 Oct 1975 [31 Oct 1974] 45561/75 Heading B3F [Also in Division G1] A device for use in determining the tendency of a metal to form cracks while passing from a liquid to a solid state, comprises a hollow body having an elongate portion 3, 7, 4 of substantially uniform cross-section and two enlarged portions 5, 6 spaced from one another by the elongate portion, at least one of the enlarged portions communicating with a duct 8 for conveying molten metal to fill up the hollow body thereby forming a specimen. The metal solidifying in the enlarged portions prevents shrinkage of the metal in the elongate portion to induce a stress which may cause cracking in the metal in the elongate portion. Fig. 1 shows one of two identical longitudinal halves of the hollow body and may consist of two metal sampling mounds 1, 2. Mould 1 has an enlarged portion 5 and elongate portion 3 joined by a portion 7 to the elongate portion 4 and enlarged portion 6 of mould 2. The enlarged portion 5 communicates with a duct 8 for conveying molten metal into the body. In use, the two halves of the body are held in position by a cardboard strip and the body immersed in the molten metal and, as soon as it is full, the body is withdrawn from the molten metal. When the metal has solidified it is shaken out of body and examined for cracks. In another embodiment, the body is of refractory material, such as quartz, and formed with a tubular portion 11 between two enlarged portions 12, 13, portions 13 having a duct 14 for conveying molten metal into the body, and portion 12 having a duct 15 connectible to a vacuum means for drawing molten metal into the body when the duct 14 is immersed in the molten metal.
GB4556175A 1974-10-31 1975-10-31 Determining crackability of metals Expired GB1474308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE821794 1974-10-31

Publications (1)

Publication Number Publication Date
GB1474308A true GB1474308A (en) 1977-05-25

Family

ID=3861109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4556175A Expired GB1474308A (en) 1974-10-31 1975-10-31 Determining crackability of metals

Country Status (3)

Country Link
FR (1) FR2289906A1 (en)
GB (1) GB1474308A (en)
LU (1) LU73687A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111766146A (en) * 2020-07-03 2020-10-13 浙江大学 Testing and evaluating method and device for shrinkage cracking performance of solidified soil material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2530480C1 (en) * 2013-04-02 2014-10-10 Открытое акционерное общество "Техдиагностика" Determination of critical brittleness temperature of metals and alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111766146A (en) * 2020-07-03 2020-10-13 浙江大学 Testing and evaluating method and device for shrinkage cracking performance of solidified soil material

Also Published As

Publication number Publication date
FR2289906A1 (en) 1976-05-28
FR2289906B3 (en) 1979-09-14
LU73687A1 (en) 1976-06-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee