Effect of Atmosphere in a Foundry Mould on Casting Surface Quality

被引：3

作者：

Chojecki, A. ^{[1
]}

Mocek, J. ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Foundry Engn, Reymonta 23, PL-31065 Krakow, Poland

来源：

ARCHIVES OF FOUNDRY ENGINEERING | 2012年 / 12卷 / 01期

关键词：

Sand mould; Defects on casting surface; Hydrogen concentration; Ductile iron;

D O I：

10.2478/v10266-012-0003-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Changes of gas pressure in the moulding sand in the zone adjacent to mould cavity were analysed during pouring of cast iron. No significant effect of pressure on the surface quality of castings was observed. In the second series of tests, the concentration of hydrogen in the gas atmosphere was measured. It has been found that the value of this concentration depends on metal composition and is particularly high in cast iron containing magnesium. This is due to the reduction of water vapour with the element that has high affinity to oxygen. The presence of hydrogen causes the formation of gas-induced defects on the casting surface.

引用

页码：13 / 18

页数：6

共 50 条

[41] De-Powdering Effect of Foundry Sand for Cement Casting
Chun, Seungyeop
Lee, Geumyeon
Kim, Sujin
Jeong, Bora
Shin, Jeehoon
Cho, Inkyung
Kim, Hongdae
Lee, Heesoo
Kim, Taewook
APPLIED SCIENCES-BASEL, 2022, 12 (01):
[42] Effect of Transportation on the Quality of Foundry Coke
Pobegalova E.O.
Ivanova V.A.
Steel in Translation, 2020, 50 (11) : 762 - 766
[43] Effect of solidus temperature and crystalline phase of mould flux on heat transfer in continuous casting mould
Yamauchi, A
Sorimachi, K
Yamauchi, T
IRONMAKING & STEELMAKING, 2002, 29 (03) : 203 - 207
[44] Propagation of surface cracks on beam blank in the mould during continuous casting
Yang, Gaiyan
Zhu, Liguang
Chen, Wei
Yu, Xingwang
Guo, Gaoxiang
IRONMAKING & STEELMAKING, 2019, 46 (09) : 809 - 818
[45] Foundry for hard casting gearwheels
不详
ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE, 1922, 66 : 550 - 550
[46] COMPLEX FREE SURFACE FLOWS FOR MOULD FILLING USING CENTRIFUGAL CASTING
McBride, D.
Humphreys, N. J.
Croft, T. N.
Green, N. R.
Cross, M.
MODELING OF CASTING, WELDING, AND ADVANCED SOLIDIFICATION PROCESSES - XII, 2009, : 459 - +
[47] Automation in Foundry/casting industry
Haque, MM
Ismail, AF
IEEE ICIT' 02: 2002 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY, VOLS I AND II, PROCEEDINGS, 2002, : 815 - 820
[48] Effect of mould expansion on pattern allowances in sand casting of steel
Peters, F.
Voigt, R.
Ou, S. Z.
Beckermann, C.
INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 2007, 20 (05) : 275 - 287
[49] EFFECT OF CASTING MOULD ON MECHANICAL PROPERTIES OF 6063 ALUMINUM ALLOY
Ayoola, W. A.
Adeosun, S. O.
Sanni, S. O.
Ochulor, F. A.
TMS 2010 139TH ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS, VOL 1: MATERIALS PROCESSING AND PROPERTIES, 2010, : 719 - 727
[50] Elution of Foundry Sand and Mould Mixture in Water
Rastovcan-Mioc, Alenka
Perkovic, Stojanka
Curkovic, Lidija
MATERIALS TESTING-MATERIALS AND COMPONENTS TECHNOLOGY AND APPLICATION, 2008, 50 (06): : 332 - 335

← 1 2 3 4 5 →