Composite autoclave is the key equipment to shape and produce
polymer matrix composite component products.
Autoclave forming process is to blank the composite material,
honeycomb sandwich structure or adhesive structure with a vacuum
bag sealed in the mold, placed in autoclave, in a vacuum (or
non-vacuum) state, after heating, pressure, insulation (In the
temperature or high temperature) holding pressure, cooling pressure
relief process, making it the desired shape and quality state of
the molding process. Autoclave molding process is widely used
composite structure, honeycomb sandwich structure and metal or
composite adhesive bonding structure of the main one of the
methods. Material molding is the use of autoclave to provide a
uniform temperature and pressure to achieve curing environment, so
get the surface and interior of higher quality, complex structure,
a huge area of composite parts.
In addition to the molecular structure of the resin, the curing of
the matrix resin of the composite material is also related to the
other components (curing agent, adhesion promoter, etc.), external
conditions (temperature, pressure and time factors play an
important role in curing)Usually these three factors are said to be
the main process parameters. All autoclave molding process methods
must determine the corresponding process parameters according to
the molecular mechanism of the matrix resin. Autoclave must have
the function of controlling these process parameters.
High quality materials
Compared with other autoclave ,we use high quality raw materials.
Instead of plastic tube and copper,all of our vacuum system tubes
and gas flues are made of stainless steel. And other heat exchanger
also adopts stainless steel instead of carbon steel or copper
Strict compliance with specification requirements
We design and manufacture composite autoclave strictly according to
the customer's process and operating rules. Please believe that our
product can not only meet your requirements, but greatly exceed
your special requirements.
Design according to different needs
Design aimed at different markets. We have designed different types
of composite autoclave to meet the needs of different markets, such
as aeronautical accessories, bulletproof armor, glass and nuclear
industry. The research experiment type autoclave, the military
production type autoclave and so on.
Composite autoclave introduction
The composite autoclave is a kind of process equipment for the
forming process of polymer matrix composite. The method of using
this kind of equipment for forming process is called composite
autoclave. Autoclave molding is the main method of manufacturing
continuous fiber reinforced thermosetting composites. It is widely
used in advanced composite structure, honeycomb sandwich structure
and metal or composite bonding structure. When the material is
molded, it is solidified by the uniform temperature and uniform
pressure provided in the tank. Therefore, the composite material
with high surface and internal quality, complex shape and large
area can be obtained.
autoclave moulding method introduction
Composite autoclave molding is widely used at home and abroad. It
is mainly used for the manufacture of large and complex aerospace
FRP components, such as leather parts, ribs, frames, all kinds of
wall panels, flooring and fairing. The forming method of hot
pressing can also has some limitations. It is difficult to form a
complex structure with this method. At the same time, this method
has high requirements for the design of die, and the mold must have
good thermal conductivity. Thermal rigidity and air tightness.
The prepreg layer according to the requirements laid in the mould,
and sealed in the vacuum bag into the autoclave, autoclave after
heating, pressure, material curing reaction, make the prepreg blank
into a desired shape and meet the quality requirements of the
component process. The hot pressing tank forming method is the most
common forming method for FRP components, which can form sandwich
structures and laminates, and can also form composite components
and adhesive components.
At present, there are several kinds of moulds suitable for
temperature forming composite material in hot pressing tank:
aluminum die, steel mould, carbon fiber / epoxy resin composite
mold. Generally speaking, composite material members with high
dimensional accuracy and high yield and small yield can be made of
carbon fiber / epoxy composite mold. The aluminum mold is most
suitable for components or flat products whose size accuracy is not
too high. When the product is large batch, It is the most
economical and practical to choose the steel die with high
precision. The curing of composite matrix is related to the
molecular structure of resin, and other components, such as curing
agent, crosslinking accelerator and so on. The external conditions
(temperature, pressure and time) affect the curing process.
Aviation and space industries: manufacturing aircraft wing and tail
and fuselage shell; large rocket, space shuttle structure;
satellite, solar panels, extendable arm, a supporting body and the
spacecraft components etc.;
The field of weaponry industry: reconstructing protective armor,
weapons, helmet and other components;
The field of electronic industry: satellite antenna and support
structure, solar cell wing and shell and other components;
Automotive Industry: manufacturing car body, force component, drive
shaft, engine frame and internal component;
The field of rail transportation: composite high speed train and
subway door and window, etc.
Public security anti-terrorism field: composite material
bulletproof vest, bullet proof helmet and so on;
Sports field: compound material racket, jump rod, golf club, rowing
and so on.
Medicine: medical X machine, CT machine frame and orthopedic
|Pressure rise rate||0.05Mpa/min continuous,adjustable|
|temp. Rise rate(empty loading)||0.5-7℃/min continuous,adjustable|
|temp. Down rate (empty loading)||0.5-7℃/min continuous,adjustable|
|temp. Down method||water or air cooling|
|point temp. error||±1-2℃|
|temp. Control and test points||Within tank and mould:2-20 points|
|cavity vacuum||-0.098mpa(absolute pressure)|
|vacuum tube||vacuum 2-20 ways,vacuum and testing|
|vacuum testing tube||vacuum 2-20 ways,vacuum and testing|
|continuous working capacity||≥50H|
It is composed of vacuum pump, vacuum pipeline, vacuum pipeline,
standby pipeline and vacuum buffer tank. The vacuum is composed of
pressure sensors, pneumatic valves and manual valves. There is a
pressure leak alarm in every vacuum. Vacuum pipeline: to measure
the route of every vacuum tube and gas pipeline. It is located on
one side of the hot pressing tank. The vacuum pumping pipeline, a
relative independence in working alone, when any one vacuum line
when a fault occurs, the vacuum line can be cut off to the road,
reducing the influence for the vacuum system and other vacuum
pipeline, in order to take corresponding measures according to the
actual situation, to ensure the stability and safety of the vacuum
Vacuum 1-20 Road, vacuum 1-20 Road, extraction separation, through
PLC control vacuum pump and vacuum valve group to achieve process
Vacuum pump: equipment according to the equipment.
Vacuum buffer tank: according to equipment size
Using professional hot press temperature control software, PLC
temperature control module, temperature sensor, pressure sensor,
control box, link line and so on.
The PLC temperature control module is adopted. The temperature data
in the tank can be transmitted to the PLC control box through the
temperature sensor, and the temperature value in the tank can be
displayed in real time on the computer, which is convenient and
intuitive. The thermal insulation program automatically calls PID
temperature setting to ensure the accuracy and stability of the
temperature in the hot pressed tank.
(1) many temperature points can be designed by the hot pressing
tank, and the temperature data are collected in the tank
respectively. The temperature error in the tank is controlled in
the range of + 0.5 ~ 2.
(2) the temperature sensor pipe and interface in the tank are
(3) direct display of temperature value, convenient and intuitive,
convenient for the operating personnel to look at the naked eye.
(4) according to the process of different products, a number of
process procedures can be set up independently.
(5) the heating time is controllable and the heating time can be
controlled and changed according to the requirements of different
Using professional hot press temperature control software, by aero
thermocouple, PLC temperature control module power regulator,
control box, stainless steel heater, link line. The temperature
data in the tank is transmitted to the PLC through the aviation
thermocouple. Then the output power is adjusted to the heating tube
by PLC and the power regulator, and the temperature value in the
tank is displayed in real time on the computer, which is convenient
and intuitive. The thermal insulation program automatically sets
the PID temperature setting to ensure the accuracy and stability of
the temperature in the hot pressed tank. The special 304 stainless
steel electric heating tube is heated quickly and has long service
life. High temperature fan through the temperature cycling special
plate of the heat from the back to the front heat evenly dispersed,
advancing to the tank door return fan shroud, wind deflector to
tank more uniform heat circulation and diffusion, optimization of
thermal cycle and heat conduction efficiency, heat cycle back and
forth in the tank, forming temperature the uniform temperature
field uniformity, no dead angle, constant pressure. The product
quality is different because of the uneven temperature and pressure
in the tank. After the work program is set, the control system
works automatically. After the work is finished, the power is
automatically broken and the sound and light alarm is sent out.
cooling system introduction
Cooling system: circulating pipe, water cooling regulation valve
group, cooling radiator group, cooling water tank, circulating fan,
circulating motor pump, cooling valve group and so on.
Type: closed circuit cycle
Medium: purify soft water
Through the import collection tank and the temperature
thermocouple, transmitted to the computer control PLC control
system, a cooling pump circulation rate and the frequency of high
temperature and high pressure fan circulation rate control system,
thereby controlling the cooling rate, cooling rate (no-load): 0~3.5
C /min continuously adjustable.
The cooling rate can be controlled according to the technical
requirements of the product.