模具英文资料
-
China's mold industry and its development
trend
Mould Industry Status
Due
to
historical
reasons
for
the
formation
of
closed,
and
complete
enterprise
features,
most
enterprises
in
China
are
equipped
with
mold
workshop,
in
factory matching status since the late
70s have a mold the concept of industrialization
and
specialization
of
tion
efficiency
is
not
high,
poor
economic
returns.
Mold
production
industry
is
small
and
scattered,
cross-industry,
capital-
intensive,
professional,
commercial
and
technical
management
level
are
relatively low.
According
to
incomplete
statistics,
there
are
now
specialized
in
manufacturing
mold, the
product supporting mold factory workshop (factory)
near 17 000, about 600
000
employees,
annual
output
value
reached
20
billion
yuan
mold.
However,
the
existing capacity of the
mold and die industry can only meet the demand of
60%, still
can
not
meet
the
needs
of
national
economic
development.
At
present,
the
domestic
needs of
large, sophisticated, complex and
long
life of
the
mold also rely
mainly on
imports.
According
to
customs
statistics,
in
1997
630
million
U.S.
dollars
worth
of
imports
mold, not
including the
import of
mold together with
the equipment;
in 1997
only
78
million
U.S. dollars
export
mold. At present
the
technological
level of China
Die
&
Mould
Industry and
manufacturing
capacity, China's
national economy
in
the
weak links
and bottlenecks constraining sustainable economic
development.
Research on the Structure
of industrial products mold
In
accordance with the division of China Mould
Industry Association, China mold
is
divided
into
10
basic
categories,
which,
stamping
die
and
plastic
molding
two
categories accounted
for the
main part. Calculated by output,
present, China accounts
for about 50%
die stamping, plastic molding die about 20%, Wire
Drawing Die (Tool)
about 10% of
the world's advanced
industrial countries and regions, the
proportion of
plastic
forming
die
die
general
of
the
total
output
value
40%.
Most
of
our
stamping
die
mold
for
the
simple,
single-process
mode
and
meet
the
molds,
precision
die,
precision
multi-position
progressive
die
is
also
one
of
the
few,
die
less
than
100
million
times the average life of the mold reached 100
million times the maximum life
of
more
than
accuracy
3
~
5um,
more
than
50
progressive
station,
and
the
international
life
of
the
die
600
million
times
the
highest
average
life
of
the
die
50
million times compared to the mid 80s
at the international advanced level.
China's plastic molding mold design,
production technology started relatively late,
the
overall
level
of
low.
A
sophisticated
multi-cavity
mold
plastic
injection
mold,
plastic
injection
mold
has
been
able
to
multi-
color
preliminary
design
and
manufacturing.
Mould
is
about
80
million
times
the
average
life
span
is
about,
the
main
difference
is
the
large
deformation
of
mold
components,
excess
burr
side
of
a
large, poor surface
quality, erosion and corrosion serious mold
cavity, the mold cavity
exhaust poor
and vulnerable such as, injection mold 5um
accuracy has reached below
the highest
life expectancy has exceeded 20
million times, the
number
has
more than
100
chamber
cavity,
reaching
the
mid
80s
to
early
90s
the
international
advanced
level.
mold Present Status
of Technology
Technical level of
China's mold industry currently uneven, with wide
disparities.
Generally
speaking,
with the developed
industrial countries, Hong Kong and
Taiwan
advanced level, there
is a large gap. The use of CAD / C
AM /
CAE / CAPP and other
technical
design
and
manufacture
molds,
both
wide
application,
or
technical
level,
there
is a big
gap between both. In
the
application of CAD
technology design
molds,
only
about
10%
of
the
mold
used
in
the
design
of
CAD,
aside
from
drawing
board
still
has
a
long
way
to
go;
in
the
application
of
CAE
design
and
analysis
of
mold
calculation,
it
was just started,
most of
the
game
is still
in trial
stages and
animation;
in
the
application
of
CAM
technology
manufacturing
molds,
first,
the
lack
of
advanced
manufacturing
equipment,
and
second,
the
existing
process
equipment
(including
the
last
10
years
the
introduction
of
advanced
equipment)
or
computer
standard
(IBM
PC
and
compatibles,
HP
workstations,
etc.)
different,
or
because
of