Foseco有色金属铸造手册.pdf

Foseco Non-ferrous Foundryman's Handbook
Foseco Non-ferrous
Foundryman's Handbook
Eleventh edition
Revised and edited by
John R, Brown
B
UTTERWOR TH
HEINE M AN N
OXFORD AUCKLAND BOSTON JOHANNESBURG MELBOURNE NEW DELHI
Preface
The last edition of the Handbook was published in 1994 and like all the earlier
editions, it aimed to provide a practical reference book for all those involved
in making castings in any of the commonly used alloys by any of the usual
moulding methods. In order to keep the Handbook to a reasonable size, it was
not possible to deal with all the common casting alloys in detail. Since 1994
the technology of casting has continued to develop and has become more
specialised so that it has been decided to publish the 11th edition of the
Handbook in three separate volumes
Non-ferrous dealing with aluminium, copper and magnesium casting
allovs
Iron
dealing with grey, ductile and special purpose cast
irons
Steel
dealing with carbon, low alloy and high alloy steels
Certain chapters (with slight modifications )are common to
volumes: these chapters include tables and general data, sands and sand
bonding systems, resin bonded sand, sodium silicate bonded sand and
feeding systems. The remaining chapters have been written specifically for
each volume
The Handbook refers to many Foseco products. Not all of the products are
available in every country and in a few cases, product names may vary
Users should always contact their local Foseco company to check whether a
particular product or its equivalent is availabl
The Foseco logo and all product names appearing in capital letters are
trademarks of the Foseco group of companies, used under licence
John R. Brown
Preface
Acknowledgements
1 Tables and general data...
Sl units and their relation to other units
Sl metric non-sl and non-metric conversions
2
Conversion table of stress values
Areas and volumes of circles, spheres, cylinders etc
The physical properties of metals
The physical properties of metals( Continued)
Densities of casting alloys
Approximate bulk densities of common materials
10
Patternmakers contraction allowances
Volume shrinkage of principal casting alloys
Comparison of sieve sizes
Calculation of average grain size
Calculation of AFS grain fineness number
Recommended standard colours for patterns
17
Dust control in foundries
18
Buoyancy forces on cores
Core print support
Opening forces on mould
19
Dimensional tolerances and consistency achieved
castings
2 Aluminiumcasting alloys
Introduction
Casting alloys
Casting processes
The effect of alloying elements
Heat treatment of aluminium alloys
42
...3. Melting aluminium alloys
Introduction
Raw materials
Melting furnaces
Corundum growth
Choice of melting unit