-
How to select
iron casting process?
- on Oct
27,
2010
The most common iron casting process
is sand casting, followed by special
casting methods, such as metal mold
casting, investment casting, plaster
casting and so on.
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Properties of
Gray Cast Iron
- on Oct 27,
2010
Gray cast iron can be regarded as
carbon steel as matrix organization
with graphite flakes added. Gray
cast iron can be divided into three
categories according to the
different matrix organization:
ferritic matrix of gray cast iron,
pearlitic gray cast iron matrix,
ferrite and pearlite matrix of gray
cast iron.
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Industrial Burners
- on Oct
25,
2010
Industrial burners mean the natural
gas burners or propane gas burners,
which are used in industrial fields
such as in hospital, restaurant,
factories etc. In USA, the
industrial burners have been widely
used for long history.
-
The
Difference between
Pig Iron and
Wrought Iron
- on Oct
21,
2010
Pig iron usually refers to the iron
alloy with carbon content of the 2
to 4.3%, also known as cast iron.
Besides carbon, pig iron also
contains silicon, manganese and
small amounts of sulfur and
phosphorus, it can not be forged,
but can be cast.
-
Ductile Iron Application
- on Oct
20,
2010
The scope of ductile iron
application can be divided into four
fields: First, pressure pipes and
fittings. Second, the automobile
industry. Third, agriculture, road
and construction applications.
Fourth, general engineering.
-
Floor Molding Process
Introduction
- on Oct 15,
2010
Floor molding is a traditional sand
molding process. Floor molding means
we make the sand castings on floor
or ground by sand boxes.
- ASTM A48 - 2000 / ASTM A159 -
1993 / ASTM A319 - 1995
- on Oct 15,
2010
This standard is for gray iron
castings used for general
engineering use where tensile
strength is a major consideration.
Casting degrees are classified on
the basis of the tensile strength of
the cast test bars.
-
Iron casting and resin sand
casting equipments
development in China
- on Oct 14,
2010
China has become one of the world's
largest casting machine
manufacturers. Chinese foundry
machinery manufacturing industry has
made great achievements in recent
years.
- How to
prevent
sand holes in iron castings
- on Oct 14,
2010
As for the resin sand molding, water
glass sand molding, although the
intensity of the two molding are
very high, sand holes will still
appear in iron castings.
-
Basic Knowledge of
Metal Casting
- on Oct 14,
2010
Metal casting has been widely used
in our residential and industrial
fields. Casting is the foundation of
modern machinery manufacturing
industry.
-
Cast Iron Stove Burner
- on Oct 14,
2010
Cast iron stove burner is the main
product of Dandong Foundry in China.
Cast iron stove is produced by
material of gray iron of ASTM 20
grade. The production technology is
shell molding and green sand molding
process.
-
How
to determine the
rough casting
tolerance?
- on Oct 14,
2010
Sometimes, our clients will be
wondered how to determine the rough
casting tolerance. According to our
experience, the standard of
BS6615:1996 and SFSA 2000 can be
used for solving this issue.
-
Casting Supplier Questionnaire
Template
- on Oct 14,
2010
The following are the empty template
of casting supplier questionnaire or
called survey report for iron
casting and steel casting suppliers
in China. We recommended these two
templates because we think they are
suitable for Chinese casting
suppliers.
-
Ductile iron in China
- on Oct 14,
2010
Ductile iron is also known as
nodular cast iron, spheroidal
graphite iron, spherulitic iron.
-
Cast Iron Skillet in China
- on Oct 13,
2010
Cast iron skillet is also known as
cast iron pan or iron skillet.
-
Tractor Gearbox made in China
- on Oct 13, 2010
The main function of the gearbox is supporting
the drive shaft to ensure that the center
distance between the axis and parallel, and to
ensure tractor gearbox components connected with
other parts of the correct installation.
-
BS3100 1991 Cast Steel Chemical
Composition
- on Oct 13,
2010
The following standard is the part 1
of the BS3100 1991. Including Grade
A1, A2, A3, A4, A5, A6, AL1, AL2,
AL3, BL2, AM1, AM2, AW1, AW2, AW3.
It is the chemical composition
limits for the cast analysis of
carbon, carbon manganese and low
alloy steel castings.
-
Iron and Steel Rough Casting
Tolerance Standard
ISO 8062:1994; SFSA2000;
BS6615:1996
- on Oct 13,
2010
What standard can be used for the
rough casting tolerance for iron and
steel materials? How to choose
suitable casting process for your
iron and steel castings? Which
casting process is suitable to your
products?
-
FBO
automatic molding line in China
- on Oct 12, 2010
As for the sand castings, there are several
molding processes, which include manual moulding,
machine molding (mechanical moulding), automatic
machine molding.
-
Belt Pulley (ductile iron)
- on Oct 12,
2010
These large belt pulley are from 500kg to
2tons, which are used for the large rock
crushers. We made them for our clients in
Germany.
-
Crane Ball (gray iron)
- on Oct 12,
2010
Crane ball is the balance weight for the
heavy-duty cranes. Their material are
usually Gray Iron Class20 or called GG20.
Their weights are from dozens of kilogram to
hundreds of kilogram.
-
Foundation Plate (gray iron)
- on Oct 11,
2010
We made these large plates for our client in
USA. Their material is Gray Iron Class 35, with
Brinell hardness BH 160-220. Their weights are
from 60kg to 300kg per piece.
-
Wooden patterns,
resin patterns,
metal patterns and molds in China
- on Oct 11,
2010
Wooden patterns are also named
wooden molds, wooden moulds, which
are made in pattern workshops, the
materials are wood.
-
The problems with
brake drum made in China
- on Oct
10,
2010
The material degree for brake drums is gray iron
class 35 (HT250, FC250, GG25, ISO300, G250) with
1% copper (Cu). Their Brinell Hardness should be
HB 180-250. Their weights are usually from 10kg
to 45kg.
-
Gas Stove Burner (gray iron)
- on Oct
10,
2010
Gas stove burners are used on the gas stoves or
furnaces for residential and industrial usage.
Usually, the gas stove burners are made by gray
iron class 25, 30, 35, or called grey iron.
-
The problems with
iron foundries in China
- on Oct
9,
2010
The iron foundries are also known as iron
casting workshops, which manufacture iron and
steel castings.
-
Manhole Cover (gray iron)
- on Oct
9,
2010
Cast iron manholes are widely used in the
drainage system. We made these manholes, covers
and frames by grey iron (gray iron), which could
reduce the costs and be wearable and have good
resist deformation.
-
The problems with
steel foundries in China
- on Oct
8,
2010
There are three kinds of steel foundries in
China. One is the sand casting foundries, then
the water glass investment steel casting
workshops, and the silica sol investment steel
casting workshops.
-
Cast Iron Flywheel
- on Oct
8,
2010
Flywheel is also known as cassette
sprockets, flying wheel, Freewheel. Flywheel
is usually made by gray cast iron (grey
iron) HT250 (ASTM NO.35, GG25, ISO250) and
ductile iron QT500-7 (ASTM NO.70-50-05,
GGG50, ISO500-7), QT450-10 (ASTM
NO.65-45-12, GGG40, ISO450-10).
-
Boiler Ash Door (gray iron)
- on Oct
8,
2010
The ask door is similar with boiler door,
furnace door or stove door. Total weight for
ash door assembly was about 60kg. Materials
include cast iron with Cr. 1% and cast
steel.
-
How to
select qualified iron casting suppliers in China
- on Oct
7,
2010
As for a new buyer and purchaser, you may not
understand what kinds of iron casting suppliers
are suitable for your products.
-
Pump Body (cast steel)
- on Oct
7,
2010
Pump body is
also known as pump casing, pump shell. Water
pump body is usually made by gray iron (grey
iron) HT200 (ASTM NO.30, GG20, ISO200, FC200,
GC200).
-
ISO 2768 Standard for Machining Tolerance
- on Oct
6,
2010
What standard can be used for the machining of
iron and steel castings? We found many drawings
or requirement files will require the ISO 2768
as the standard for the machining. Therefore, we
have to go to internet to look for it.
-
Brinell hardness (HB), Rockwell hardness (HRC) and Vicker hardness (VH)
- on Oct
5,
2010
What is Brinell hardness (HB)? What
is rockwell hardness (HRC)? What is
Vicker hardness (VH)? How to convert
from HRC and VH to HB?
-
DIN 1686 Standard for Rough Casting Tolerance
- on Oct
5,
2010
What standard can be used
for the rough casting tolerance for
iron, steel and aluminum castings?
and how can find a free downloaded
DIN 1686
standard?
-
ZFS sand casings, precoated sand, hot precoated sand, shell molding
- on Oct
4,
2010
What is ZFS sand casings, precoated
sand castings, hot precoated sand
castings, hot shell and core molding
process, shell molding process?
-
ASTM A148 Standard for High Strength Cast Steel
- on Oct
4,
2010
This sheet is providing the chemical
components and physical properties
for the high strength cast steel by
standard of ASTM A148.
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Surface Finish Degree (Smoothness) Comparison Table between Rz, Ra and RMS
- on Oct
3,
2010
What standard can be used for the
surface finish degree, or we called
smoothness degree for the iron and
steel castings?
-
Normal Material Comparison Table for
Grey Cast Iron between DIN, ISO, ASTM and GB
- on Oct
3,
2010
As an metal casting manufacturer in China, how
can we convert the foreign standard of grey iron
(gray iron) castings into the standard in China?
-
Normal Material Comparison Table for
Ductile Cast Iron between DIN, ISO, ASTM and GB
- on Oct
2,
2010
As an metal casting manufacturer in China, how
can we convert the foreign standard of ductile
iron castings into the standard in China?
-
How about the
cast iron & pig iron prices in China?
- on Oct
2,
2010
As a metal foundry in China, we
always keep our eyes on the updated
pig iron prices. At the same time,
we also provided the updated cast
iron prices on Dandong Foundry's
website.
-
Comparison Table of
Alloy Steel Casting Degrees for International
- on Oct 1,
2010
This sheet is providing the
comparison for the alloy steel
casting degrees between China, USA,
Japan, Germany, England, France,
Russia and ISO.
-
Material Comparison Table
DIN1691, 1693 and DIN EN 1561 (GG and EN-GJL or EN-GJS)
- on Oct 1, 2010
The purchasers and clients in
Germany and Austria usually provided
us the standard of DIN EN 1561. This
is the old standard, and has been
replaced by the new standard DIN
1691.
-
The
current situation and development of
China
cast iron valve products
- on Oct 1, 2010
Cast iron valves have nearly 100
years of history in China, but only
has made significant development in
the latest 10 years. According to
statistics, in the latest 10 years,
the domestic iron valves, fittings
have annual production from 0.2
million tons to 0.8 million tons,
the average annual increase rate is
about 20%.
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